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100 results on '"Hjermind, Le"'

1. Combining Literature Review With a Ground Truth Approach for Diagnosing Huntington's Disease Phenocopy

Author: Nguyen QTR, Ortigoza-Escobar JD, Burgunder JM, Mariotti C, Saft C, Hjermind LE, Youssov K, Landwehrmeyer GB, and Bachoud-Lévi AC
Subjects: daily clinical practice, diagnosis, differential diagnosis, Huntington's disease, chorea, phenocopy, guidelines
Abstract: One percent of patients with a Huntington's disease (HD) phenotype do not have the Huntington (HTT) gene mutation. These are known as HD phenocopies. Their diagnosis is still a challenge. Our objective is to provide a diagnostic approach to HD phenocopies based on medical expertise and a review of the literature. We employed two complementary approaches sequentially: a review of the literature and two surveys analyzing the daily clinical practice of physicians who are experts in movement disorders. The review of the literature was conducted from 1993 to 2020, by extracting articles about chorea or HD-like disorders from the database Pubmed, yielding 51 articles, and analyzing 20 articles in depth to establish the surveys. Twenty-eight physicians responded to the first survey exploring the red flags suggestive of specific disease entities. Thirty-three physicians completed the second survey which asked for the classification of paraclinical tests according to their diagnostic significance. The analysis of the results of the second survey used four different clustering algorithms and the density-based clustering algorithm DBSCAN to classify the paraclinical tests into 1st, 2nd, and 3rd-line recommendations. In addition, we included suggestions from members of the European Reference Network-Rare Neurological Diseases (ERN-RND Chorea & Huntington disease group). Finally, we propose guidance that integrate the detection of clinical red flags with a classification of paraclinical testing options to improve the diagnosis of HD phenocopies.
Published: 2022

2. A C6orf10/LOC101929163 locus is associated with age of onset in C9orf72 carriers

Author: Zhang M1, 2 3, Ferrari R4, Tartaglia MC3, 5 6, Keith J7, Surace EI8, Wolf U9, Sato C3, Grinberg M3, Liang Y3, Xi Z3, Dupont K3, McGoldrick P3, Weichert A3, McKeever PM3, Schneider R3, 6 7, McCorkindale MD4, Manzoni C10, Rademakers R11, Graff-Radford NR12, Dickson DW11, Parisi JE13, Boeve BF14, Petersen RC14, Miller BL15, Seeley WW16, van Swieten JC17, van Rooij J17, Pijnenburg Y18, van der Zee J19, Van Broeckhoven C19, Le Ber I21, Van Deerlin V23, Suh E23, Rohrer JD24, Mead S25, Graff C26, Öijerstedt L26, Pickering-Brown S28, Rollinson S28, Rossi G29, Tagliavini F30, Brooks WS31, Dobson-Stone C32, Halliday GM32, Hodges JR32, Piguet O34, Binetti G36, Benussi L37, Ghidoni R37, Nacmias B38, Sorbi S38, Bruni AC40, Galimberti D41, Scarpini E41, Rainero I42, Rubino E42, Clarimon J43, Lleó A43, Ruiz A45, Hernández I45, Pastor P46, Diez-Fairen M46, Borroni B48, Pasquier F49, Deramecourt V49, Lebouvier T49, Perneczky R50, 51 52, Diehl-Schmid J50, Grafman J53, Huey ED55, Mayeux R55, Nalls MA57, Hernandez D57, Singleton A57, Momeni P58, Zeng Z59, Hardy J4, Robertson J3, Zinman L6, 7, Rogaeva E3, 6, International FTD-Genomics Consortium (IFGC), Ferrari R, Hernandez DG, Nalls MA, Rohrer JD, Ramasamy A, Kwok JBJ, Dobson-Stone C, Brooks WS, Schofield PR, Halliday GM, Hodges JR, Piguet O, Bartley L, Thompson E, Hernández I, Ruiz A, Boada M, Borroni B, Padovani A, Cruchaga C, Cairns NJ, Benussi L, Binetti G, Ghidoni R, Forloni G, Albani D, Galimberti D, Fenoglio C, Serpente M, Scarpini E, Clarimón J, Lleó A, Blesa R, Wald Ouml ML, Nilsson K, Nilsson C, Mackenzie IRA, Hsiung GR, Mann DMA, Grafman J, Morris CM, Attems J, Griffiths TD, McKeith IG, Thomas AJ, Pietrini P, Huey ED, Wassermann EM, Baborie A, Jaros E, Tierney MC, Pastor P, Razquin C, Ortega-Cubero S, Alonso E, Perneczky R, Diehl-Schmid J, Alexopoulos P, Kurz A, Rainero I, Rubino E, Pinessi L, Rogaeva E, St George-Hyslop P, Rossi G, Tagliavini F, Giaccone G, Rowe JB, Schlachetzki JCM, Uphill J, Collinge J, Mead S, Danek A, Van Deerlin VM, Grossman M, Trojanowski JQ, van der Zee J, Van Broeckhoven C, Cappa SF, Leber I, Hannequin D, Golfier V, Vercelletto M, Brice A, Nacmias B, Sorbi S, Bagnoli S, Piaceri I, Nielsen JE, Hjermind LE, Riemenschneider M, Mayhaus M, Ibach B, Gasparoni G, Pichler S, Gu W, Rossor MN, Fox NC, Warren JD, Grazia Spillantini M, Morris HR, Rizzu P, Heutink P, Snowden JS, Rollinson S, Richardson A, Gerhard A, Bruni AC, Maletta R, Frangipane F, Cupidi C, Bernardi L, Anfossi M, Gallo M, Elena Conidi M, Smirne N, Rademakers R, Baker M, Dickson DW, Graff-Radford NR, Petersen RC, Knopman D, Josephs KA, Boeve BF, Parisi JE, Seeley WW, Miller BL, Karydas AM, Rosen H, van Swieten JC, Dopper EGP, Seelaar H, Pijnenburg YAL, Scheltens P, Logroscino G, Capozzo R, Novelli V, Puca AA, Franceschi M, Postiglione A, Milan G, Sorrentino P, Kristiansen M, Chiang HH, Graff C, Pasquier F, Rollin A, Deramecourt V, Lebouvier T, Kapogiannis D, Ferrucci L, Pickering-Brown S, Singleton AB, Hardy J, Momeni P, Human genetics, Amsterdam Neuroscience - Neurodegeneration, Neurology, Divisions, Zhang, M1, 2, 3, Ferrari, R4, Tartaglia, Mc3, 5, 6, Keith, J7, Surace, Ei8, Wolf, U9, Sato, C3, Grinberg, M3, Liang, Y3, Xi, Z3, Dupont, K3, Mcgoldrick, P3, Weichert, A3, Mckeever, Pm3, Schneider, R3, 6, 7, Mccorkindale, Md4, Manzoni, C10, Rademakers, R11, Graff-Radford, Nr12, Dickson, Dw11, Parisi, Je13, Boeve, Bf14, Petersen, Rc14, Miller, Bl15, Seeley, Ww16, van Swieten, Jc17, van Rooij, J17, Pijnenburg, Y18, van der Zee, J19, Van Broeckhoven, C19, Le Ber, I21, Van Deerlin, V23, Suh, E23, Rohrer, Jd24, Mead, S25, Graff, C26, Öijerstedt, L26, Pickering-Brown, S28, Rollinson, S28, Rossi, G29, Tagliavini, F30, Brooks, Ws31, Dobson-Stone, C32, Halliday, Gm32, Hodges, Jr32, Piguet, O34, Binetti, G36, Benussi, L37, Ghidoni, R37, Nacmias, B38, Sorbi, S38, Bruni, Ac40, Galimberti, D41, Scarpini, E41, Rainero, I42, Rubino, E42, Clarimon, J43, Lleó, A43, Ruiz, A45, Hernández, I45, Pastor, P46, Diez-Fairen, M46, Borroni, B48, Pasquier, F49, Deramecourt, V49, Lebouvier, T49, Perneczky, R50, 51, 52, Diehl-Schmid, J50, Grafman, J53, Huey, Ed55, Mayeux, R55, Nalls, Ma57, Hernandez, D57, Singleton, A57, Momeni, P58, Zeng, Z59, Hardy, J4, Robertson, J3, Zinman, L6, Rogaeva, E3, International FTD-Genomics Consortium, (IFGC), Ferrari, R, Hernandez, Dg, Nalls, Ma, Rohrer, Jd, Ramasamy, A, Kwok, Jbj, Dobson-Stone, C, Brooks, W, Schofield, Pr, Halliday, Gm, Hodges, Jr, Piguet, O, Bartley, L, Thompson, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, Nj, Benussi, L, Binetti, G, Ghidoni, R, Forloni, G, Albani, D, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Wald Ouml, Ml, Nilsson, K, Nilsson, C, Mackenzie, Ira, Hsiung, Gr, Mann, Dma, Grafman, J, Morris, Cm, Attems, J, Griffiths, Td, Mckeith, Ig, Thomas, Aj, Pietrini, P, Huey, Ed, Wassermann, Em, Baborie, A, Jaros, E, Tierney, Mc, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, R, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, St George-Hyslop, P, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, Jb, Schlachetzki, Jcm, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin, Vm, Grossman, M, Trojanowski, Jq, van der Zee, J, Van Broeckhoven, C, Cappa, Sf, Leber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, Je, Hjermind, Le, Riemenschneider, M, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, Mn, Fox, Nc, Warren, Jd, Grazia Spillantini, M, Morris, Hr, Rizzu, P, Heutink, P, Snowden, J, Rollinson, S, Richardson, A, Gerhard, A, Bruni, Ac, Maletta, R, Frangipane, F, Cupidi, C, Bernardi, L, Anfossi, M, Gallo, M, Elena Conidi, M, Smirne, N, Rademakers, R, Baker, M, Dickson, Dw, Graff-Radford, Nr, Petersen, Rc, Knopman, D, Josephs, Ka, Boeve, Bf, Parisi, Je, Seeley, Ww, Miller, Bl, Karydas, Am, Rosen, H, van Swieten, Jc, Dopper, Egp, Seelaar, H, Pijnenburg, Yal, Scheltens, P, Logroscino, G, Capozzo, R, Novelli, V, Puca, Aa, Franceschi, M, Postiglione, A, Milan, G, Sorrentino, P, Kristiansen, M, Chiang, Hh, Graff, C, Pasquier, F, Rollin, A, Deramecourt, V, Lebouvier, T, Kapogiannis, D, Ferrucci, L, Pickering-Brown, S, Singleton, Ab, Hardy, J, Momeni, P, and Int FTD-Genomics Consortium IFGC
Subjects: Male, Heterozygote, amyotrophic lateral sclerosis, Genotype, genetic association, Age of onset, Polymorphism, Single Nucleotide, frontotemporal dementia, age of onset, C9orf72, Humans, amyotrophic lateral sclerosi, Aged, C9orf72 Protein, Original Articles, DNA Methylation, Middle Aged, Amyotrophic lateral sclerosis, Gene Expression Regulation, Genetic association, CpG Islands, Female, Human medicine, Neurology (clinical), Frontotemporal dementia
Abstract: Discovery of disease age-of-onset modifiers is important for clinical trials and drug design. Zhang et al. perform a genome-wide analysis of epigenetic functional polymorphisms and identify an association between the C6orf10/LOC101929163 locus and age of FTD/ALS onset. The risk allele may be associated with a pro-inflammatory state in the brain., The G4C2-repeat expansion in C9orf72 is the most common known cause of amyotrophic lateral sclerosis and frontotemporal dementia. The high phenotypic heterogeneity of C9orf72 patients includes a wide range in age of onset, modifiers of which are largely unknown. Age of onset could be influenced by environmental and genetic factors both of which may trigger DNA methylation changes at CpG sites. We tested the hypothesis that age of onset in C9orf72 patients is associated with some common single nucleotide polymorphisms causing a gain or loss of CpG sites and thus resulting in DNA methylation alterations. Combined analyses of epigenetic and genetic data have the advantage of detecting functional variants with reduced likelihood of false negative results due to excessive correction for multiple testing in genome-wide association studies. First, we estimated the association between age of onset in C9orf72 patients (n = 46) and the DNA methylation levels at all 7603 CpG sites available on the 450 k BeadChip that are mapped to common single nucleotide polymorphisms. This was followed by a genetic association study of the discovery (n = 144) and replication (n = 187) C9orf72 cohorts. We found that age of onset was reproducibly associated with polymorphisms within a 124.7 kb linkage disequilibrium block tagged by top-significant variation, rs9357140, and containing two overlapping genes (LOC101929163 and C6orf10). A meta-analysis of all 331 C9orf72 carriers revealed that every A-allele of rs9357140 reduced hazard by 30% (P = 0.0002); and the median age of onset in AA-carriers was 6 years later than GG-carriers. In addition, we investigated a cohort of C9orf72 negative patients (n = 2634) affected by frontotemporal dementia and/or amyotrophic lateral sclerosis; and also found that the AA-genotype of rs9357140 was associated with a later age of onset (adjusted P = 0.007 for recessive model). Phenotype analyses detected significant association only in the largest subgroup of patients with frontotemporal dementia (n = 2142, adjusted P = 0.01 for recessive model). Gene expression studies of frontal cortex tissues from 25 autopsy cases affected by amyotrophic lateral sclerosis revealed that the G-allele of rs9357140 is associated with increased brain expression of LOC101929163 (a non-coding RNA) and HLA-DRB1 (involved in initiating immune responses), while the A-allele is associated with their reduced expression. Our findings suggest that carriers of the rs9357140 GG-genotype (linked to an earlier age of onset) might be more prone to be in a pro-inflammatory state (e.g. by microglia) than AA-carriers. Further, investigating the functional links within the C6orf10/LOC101929163/HLA-DRB1 pathway will be critical to better define age-dependent pathogenesis of frontotemporal dementia and amyotrophic lateral sclerosis.
Published: 2018
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3. Corticobasal and ataxia syndromes widen the spectrum of C9ORF72 hexanucleotide expansion disease

Author: Lindquist, SG, Duno, M, Batbayli, M, Puschmann, A, Braendgaard, H, Mardosiene, S, Svenstrup, K, Pinborg, LH, Vestergaard, K, Hjermind, LE, Stokholm, J, Andersen, BB, Johannsen, P, and Nielsen, JE
Published: 2013
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4. Novel mutation in ATP13A2 widens the spectrum of Kufor-Rakeb syndrome (PARK9)

Author: Eiberg, H, Hansen, L, Korbo, L, Nielsen, IM, Svenstrup, K, Bech, S, Pinborg, LH, Friberg, L, Hjermind, LE, Olsen, OR, and Nielsen, JE
Published: 2012
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5. Protein network analysis reveals selectively vulnerable regions and biological processes in FTD

Author: Bonham, Lw1, Steele, Nzr1, Karch, Cm1, Manzoni, C1, Geier, Eg1, Wen, N1, Ofori-Kuragu, A1, Momeni, P1, Hardy, J1, Miller, Za1, Hess, Cp1, Lewis, P1, Miller, Bl1, Seeley, Ww1, Baranzini, Se1, Desikan, Rs1, Ferrari, R1, Yokoyama, Js1, ( Ferrari R, International FTD-Genomics Consortium, Hernandez, Dg, Nalls, Ma, Rohrer, Jd, Ramasamy, A, Kwok, Jbj, Dobson-Stone, C, Schofield, Pr, Halliday, Gm, Hodges, Jr, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, Nj, Benussi, L, Binetti, G, Ghidoni, R, Forloni, G, Albani, D, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Landqvist Waldö, M, Nilsson, C, Mackenzie, Ira, Hsiung, Gyr, Mann, Dma, Grafman, J, Morris, Cm, Attems, J, Griffiths, Td, Mckeith, Ig, Thomas, Aj, Pietrini, P, Huey, Ed, Wassermann, Em, Baborie, A, Jaros, E, Tierney, Mc, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, R, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, St George-Hyslop, P, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, Jb, Schlachetzki, Jcm, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin VM, Grossman, M, Trojanowski, Jq, van der Zee, J, Cruts, M, Van Broeckhoven, C, Cappa, Sf, Leber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, Je, Hjermind, Le, Riemenschneider, M, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, Mn, Fox, Nc, Warren, Jd, Spillantini, Mg, Morris, Hr, Rizzu, P, Heutink, P, Snowden, Js, Rollinson, S, Richardson, A, Gerhard, A, Bruni, Ac, Maletta, R, Frangipane, F, Cupidi, C, Bernardi, L, Anfossi, M, Gallo, M, Conidi, Me, Smirne, N, Rademakers, R, Baker, M, Dickson, Dw, Graff-Radford, Nr, Petersen, Rc, Knopman, D, Josephs, Ka, Boeve, Bf, Parisi, Je, Seeley, Ww, Miller, Bl, Karydas, Am, Rosen, H, van Swieten JC, Dopper, Eg, Seelaar, H, Pijnenburg, Yal, Scheltens, P, Logroscino, G, Capozzo, R, Novelli, V, Puca, Aa, Franceschi, M, Postiglione, A, Milan, G, Sorrentino, P, Kristiansen, M, Chiang, Hh, Graff, C, Pasquier, F, Rollin, A, Deramecourt, V, Lebouvier, T, Kapogiannis, D, Ferrucci, L, Pickering-Brown, S, Singleton, Ab, Hardy, J, and Momeni, P.
Subjects: 0301 basic medicine, Cell type, Disease, Frontotemporal lobar degeneration, Biology, medicine.disease, Article, 03 medical and health sciences, 030104 developmental biology, 0302 clinical medicine, Interaction network, Genetic variation, medicine, Neurology (clinical), Gene, Neuroscience, 030217 neurology & neurosurgery, Genetics (clinical), Frontotemporal dementia, Genetic association
Abstract: ObjectiveThe neuroanatomical profile of behavioral variant frontotemporal dementia (bvFTD) suggests a common biological etiology of disease despite disparate pathologic causes; we investigated the genetic underpinnings of this selective regional vulnerability to identify new risk factors for bvFTD.MethodsWe used recently developed analytical techniques designed to address the limitations of genome-wide association studies to generate a protein interaction network of 63 bvFTD risk genes. We characterized this network using gene expression data from healthy and diseased human brain tissue, evaluating regional network expression patterns across the lifespan as well as the cell types and biological processes most affected in bvFTD.ResultsWe found that bvFTD network genes show enriched expression across the human lifespan in vulnerable neuronal populations, are implicated in cell signaling, cell cycle, immune function, and development, and are differentially expressed in pathologically confirmed frontotemporal lobar degeneration cases. Five of the genes highlighted by our differential expression analyses, BAIAP2, ERBB3, POU2F2, SMARCA2, and CDC37, appear to be novel bvFTD risk loci.ConclusionsOur findings suggest that the cumulative burden of common genetic variation in an interacting protein network expressed in specific brain regions across the lifespan may influence susceptibility to bvFTD.
Published: 2018

6. Genetic architecture of sporadic frontotemporal dementia and overlap with Alzheimer’s and Parkinson’s diseases

Author: Ferrari R, Wang Y, Vandrovcova J, Guelfi S, Witeolar A, Karch CM, Schork AJ, Fan CC, Brewer JB, International FTD-Genomics Consortium (IFGC), International Parkinson's Disease Genomics Consortium (IPDGC), International Genomics of Alzheimer's Project (IGAP), Momeni P, Schellenberg GD, Dillon WP, Sugrue LP, Hess CP, Yokoyama JS, Bonham LW, Rabinovici GD, Miller BL, Andreassen OA, Dale AM, Hardy J, Desikan RS, Collaborators: Ferrari R, Hernandez DG, Nalls MA, Rohrer JD, Ramasamy A, Kwok JBJ, Dobson-Stone C, Schofield PR, Halliday GM, Hodges JR, Piguet O, Bartley L, Thompson E, Haan E, Hernández I, Ruiz A, Boada M, Borroni B, Padovani A, Cruchaga C, Cairns NJ, Benussi L, Binetti G, Ghidoni R, Forloni G, Albani D, Galimberti D, Fenoglio C, Serpente M, Scarpini E, Clarimón J, Lleó A, Blesa R, Landqvist Waldö M, Nilsson C, Mackenzie IRA, Hsiung GYR, Mann DMA, Grafman J, Morris CM, Attems J, Griffiths TD, McKeith IG, Thomas AJ, Pietrini P, Huey ED, Wassermann EM, Baborie A, Jaros E, Tierney MC, Pastor P, Razquin C, Ortega-Cubero S, Alonso E, Perneczky R, Diehl-Schmid J, Alexopoulos P, Kurz A, Rainero I, Rubino E, Pinessi L, Rogaeva E, St George-Hyslop P, Rossi G, Tagliavini F, Giaccone G, Rowe JB, Schlachetzki JCM, Uphill J, Collinge J, Mead S, Danek A, Van Deerlin VM, Grossman M, Trojanowski JQ, van der Zee J, Cruts M, Van Broeckhoven C, Cappa SF, Leber I, Hannequin D, Golfier V, Vercelletto M, Brice A, Nacmias B, Sorbi S, Bagnoli S, Piaceri I, Nielsen JE, Hjermind LE, Riemenschneider M, Mayhaus M, Ibach B, Gasparoni G, Pichler S, Gu W, Rossor MN, Fox NC, Warren JD, Spillantini MG, Morris HR, Rizzu P, Heutink P, Snowden JS, Rollinson S, Richardson A, Gerhard A, Bruni AC, Maletta R, Frangipane F, Cupidi C, Bernardi L, Anfossi M, Gallo M, Conidi ME, Smirne N, Rademakers R, Baker M, Dickson DW, Graff-Radford NR, Petersen RC, Knopman D, Josephs KA, Boeve BF, Parisi JE, Seeley WW, Karydas AM, Rosen H, van Swieten JC, Dopper EG, Seelaar H, Pijnenburg YAL, Scheltens P, Logroscino G, Capozzo R, Novelli V, Puca AA, Franceschi M, Postiglione A, Milan G, Sorrentino P, Kristiansen M, Chiang HH, Graff C, Pasquier F, Rollin A, Deramecourt V, Lebouvier T, Kapogiannis D, Ferrucci L, Pickering-Brown S, Singleton AB, Momeni P., Neurology, VU University medical center, Human genetics, Amsterdam Neuroscience - Neurodegeneration, CCA - Imaging and biomarkers, Divisions, Van Broeckhoven, Christine, Rademakers, Rosa, International FTD-Genomics Consortium (IFGC), International Parkinson's Disease Genomics Consortium (IPDGC), International Genomics of Alzheimer's Project (IGAP), Ferrari, R, Wang, Y, Vandrovcova, J, Guelfi, S, Witeolar, A, Karch, Cm, Schork, Aj, Fan, Cc, Brewer, Jb, International FTD-Genomics Consortium, (IFGC), International Parkinson's Disease Genomics Consortium, (IPDGC), International Genomics of Alzheimer's Project, (IGAP), Momeni, P, Schellenberg, Gd, Dillon, Wp, Sugrue, Lp, Hess, Cp, Yokoyama, J, Bonham, Lw, Rabinovici, Gd, Miller, Bl, Andreassen, Oa, Dale, Am, Hardy, J, Desikan, R, Collaborators: Ferrari, R, Hernandez, Dg, Nalls, Ma, Rohrer, Jd, Ramasamy, A, Kwok, Jbj, Dobson-Stone, C, Schofield, Pr, Halliday, Gm, Hodges, Jr, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, Nj, Benussi, L, Binetti, G, Ghidoni, R, Forloni, G, Albani, D, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Landqvist Waldö, M, Nilsson, C, Mackenzie, Ira, Hsiung, Gyr, Mann, Dma, Grafman, J, Morris, Cm, Attems, J, Griffiths, Td, Mckeith, Ig, Thomas, Aj, Pietrini, P, Huey, Ed, Wassermann, Em, Baborie, A, Jaros, E, Tierney, Mc, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, R, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, St George-Hyslop, P, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, Jb, Schlachetzki, Jcm, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin, Vm, Grossman, M, Trojanowski, Jq, van der Zee, J, Cruts, M, Van Broeckhoven, C, Cappa, Sf, Leber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, Je, Hjermind, Le, Riemenschneider, M, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, Mn, Fox, Nc, Warren, Jd, Spillantini, Mg, Morris, Hr, Rizzu, P, Heutink, P, Snowden, J, Rollinson, S, Richardson, A, Gerhard, A, Bruni, Ac, Maletta, R, Frangipane, F, Cupidi, C, Bernardi, L, Anfossi, M, Gallo, M, Conidi, Me, Smirne, N, Rademakers, R, Baker, M, Dickson, Dw, Graff-Radford, Nr, Petersen, Rc, Knopman, D, Josephs, Ka, Boeve, Bf, Parisi, Je, Seeley, Ww, Karydas, Am, Rosen, H, van Swieten, Jc, Dopper, Eg, Seelaar, H, Pijnenburg, Yal, Scheltens, P, Logroscino, G, Capozzo, R, Novelli, V, Puca, Aa, Franceschi, M, Postiglione, A, Milan, G, Sorrentino, P, Kristiansen, M, Chiang, Hh, Graff, C, Pasquier, F, Rollin, A, Deramecourt, V, Lebouvier, T, Kapogiannis, D, Ferrucci, L, Pickering-Brown, S, Singleton, Ab, and Momeni, P.
Subjects: 0301 basic medicine, Genotype, Single-nucleotide polymorphism, Genome-wide association study, Polymorphism, Single Nucleotide, Article, 03 medical and health sciences, 0302 clinical medicine, Alzheimer Disease, mental disorders, Genetic Pleiotropy, Genetic predisposition, Medicine, Humans, Genetic Predisposition to Disease, Allele, Polymorphism, Biology, Alleles, Genetic association, Genetics, business.industry, Frontotemporal Dementia, Genome-Wide Association Study, Parkinson Disease, Surgery, Neurology (clinical), Psychiatry and Mental Health, Single Nucleotide, medicine.disease, Genetic architecture, nervous system diseases, 030104 developmental biology, Human medicine, business, Neuroscience, 030217 neurology & neurosurgery, Frontotemporal dementia
Abstract: Background Clinical, pathological and genetic overlap between sporadic frontotemporal dementia (FTD), Alzheimer9s disease (AD) and Parkinson9s disease (PD) has been suggested; however, the relationship between these disorders is still not well understood. Here we evaluated genetic overlap between FTD, AD and PD to assess shared pathobiology and identify novel genetic variants associated with increased risk for FTD. Methods Summary statistics were obtained from the International FTD Genomics Consortium, International PD Genetics Consortium and International Genomics of AD Project (n>75 000 cases and controls). We used conjunction false discovery rate (FDR) to evaluate genetic pleiotropy and conditional FDR to identify novel FTD-associated SNPs. Relevant variants were further evaluated for expression quantitative loci. Results We observed SNPs within the HLA , MAPT and APOE regions jointly contributing to increased risk for FTD and AD or PD. By conditioning on polymorphisms associated with PD and AD, we found 11 loci associated with increased risk for FTD. Meta-analysis across two independent FTD cohorts revealed a genome-wide signal within the APOE region (rs6857, 3′-UTR= PVRL2 , p=2.21×10 –12 ), and a suggestive signal for rs1358071 within the MAPT region (intronic= CRHR1 , p=4.91×10 −7 ) with the effect allele tagging the H1 haplotype. Pleiotropic SNPs at the HLA and MAPT loci associated with expression changes in cis -genes supporting involvement of intracellular vesicular trafficking, immune response and endo/lysosomal processes. Conclusions Our findings demonstrate genetic pleiotropy in these neurodegenerative diseases and indicate that sporadic FTD is a polygenic disorder where multiple pleiotropic loci with small effects contribute to increased disease risk.
Published: 2016
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7. Immune-related genetic enrichment in frontotemporal dementia: An analysis of genome-wide association studies

Author: Broce, Iris, Karch, Celeste M., Wen, Natalie, Fan, Chun C., Wang, Yunpeng, Hong Tan, Chin, Kouri, Naomi, Ross, Owen A., Höglinger, Günter U., Muller, Ulrich, Hardy, John, Momeni, Parastoo, Hess, Christopher P., Dillon, William P., Miller, Zachary A., Bonham, Luke W., Rabinovici, Gil D., Rosen, Howard J., Schellenberg, Gerard D., Franke, Andre, Karlsen, Tom H., Veldink, Jan H., Ferrari, Raffaele, Yokoyama, Jennifer S., Miller, Bruce L., Andreassen, Ole A., Dale, Anders M., Desikan, Rahul S., Sugrue, Leo P., Ferrari R, Hernandez DG, Nalls MA, Rohrer JD, Ramasamy A, Kwok JBJ, Dobson-Stone C, Brooks WS, Schofield PR, Halliday GM, Hodges JR, Piguet O, Bartley L, Thompson E, Haan E, Hernández I, Ruiz A, Boada M, Borroni B, Padovani A, Cruchaga C, Cairns NJ, Benussi L, Binetti G, Ghidoni R, Forloni G, Galimberti D, Fenoglio C, Serpente M, Scarpini E, Clarimón J, Lleó A, Blesa R, Waldö ML, Nilsson K, Nilsson C, Mackenzie IRA, Hsuing GYR, Mann DMA, Grafman J, Morris CM, Attems J, Griffiths TD, McKeith IG, Thomas AJ, Pietrini P, Huey ED, Wasserman EM, Baborie A, Jaros E, Tierney MC, Pastor P, Razquin C, Ortega-Cubero S, Alonso E, Perneczky E, Diehl-Schmid J, Alexopoulos P, Kurz A, Rainero I, Rubino E, Pinessi L, Rogaeva E, St George-Hyslop P, Rossi G, Tagliavini F, Giaccone G, Rowe JB, Schlachetzki JCM, Uphill J, Collinge J, Mead S, Danek A, Van Deerlin VM, Grossmann M, Trojanowski JQ, van der Zee J, Deschamps W, Van Langenhove T, Cruts M, Van Broeckhoven C, Cappa SF, Le Ber I, Hannequin D, Golfier V, Vercelletto M, Brice A, Nacmias B, Sorbi S, Bagnoli S, Piaceri I, Nielsen JE, Hjermind LE, Riemenschneider M, Mayhaus M, Ibach B, Gasparoni G, Pichler S, Gu W, Rossor MN, Fox NC, Warren JD, Spillantini MG, Morris HR, Rizzu P, Heutnik P, Snowden J, Rollinson S, Richardson A, Gerhard A, Bruni AC, Maletta R, Frangipane F, Cupidi C, Bernardi L, Anfossi M, Gallo M, Conidi ME, Smirne N, Rademakers R, Baker M, Dickson DW, Graff-Radford NR, Peterson RC, Knopman D, Josephs KA, Boeve BF, Parisi JE, Seeley WW, Miller BL, Karydas AM, Rosen H, van Swieten JC, Dopper EGP, Seelaar H, Pijnenburg YAL, Scheltens P, Logroscino G, Capozzo R, Novelli V, Puca AA, Franceschi M, Postiglione A, Milan G, Sorrentino P, Kristiansen M, Chiang HH, Graff C, Pasquier F, Rollin A, Deramecourt V, Lebert F, Kapogiannis D, Ferucci L, Pickering-Brown S, Singleton AB, Hardy J, Momeni P., Broce, Iris [0000-0003-4932-1430], Karch, Celeste M [0000-0002-6854-5547], Wang, Yunpeng [0000-0001-9831-1090], Tan, Chin Hong [0000-0002-0980-9936], Kouri, Naomi [0000-0002-6841-9882], Hess, Christopher P [0000-0002-5132-5302], Miller, Zachary A [0000-0002-5991-3053], Bonham, Luke W [0000-0002-2533-1266], Veldink, Jan H [0000-0001-5572-9657], Dale, Anders M [0000-0002-6126-2966], Desikan, Rahul S [0000-0002-4151-6017], Sugrue, Leo P [0000-0001-7315-4519], Apollo - University of Cambridge Repository, Neurology, Human genetics, Amsterdam Neuroscience - Neurodegeneration, Divisions, Rademakers, Rosa, Int FTD-Genomics Consortium, Broce, Iri, Karch, Celeste M., Wen, Natalie, Fan, Chun C., Wang, Yunpeng, Hong Tan, Chin, Kouri, Naomi, Ross, Owen A., Höglinger, Günter U., Muller, Ulrich, Hardy, John, Momeni, Parastoo, Hess, Christopher P., Dillon, William P., Miller, Zachary A., Bonham, Luke W., Rabinovici, Gil D., Rosen, Howard J., Schellenberg, Gerard D., Franke, Andre, Karlsen, Tom H., Veldink, Jan H., Ferrari, Raffaele, Yokoyama, Jennifer S., Miller, Bruce L., Andreassen, Ole A., Dale, Anders M., Desikan, Rahul S., Sugrue, Leo P., Ferrari, R, Hernandez, Dg, Nalls, Ma, Rohrer, Jd, Ramasamy, A, Kwok, Jbj, Dobson-Stone, C, Brooks, W, Schofield, Pr, Halliday, Gm, Hodges, Jr, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, Nj, Benussi, L, Binetti, G, Ghidoni, R, Forloni, G, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Waldö, Ml, Nilsson, K, Nilsson, C, Mackenzie, Ira, Hsuing, Gyr, Mann, Dma, Grafman, J, Morris, Cm, Attems, J, Griffiths, Td, Mckeith, Ig, Thomas, Aj, Pietrini, P, Huey, Ed, Wasserman, Em, Baborie, A, Jaros, E, Tierney, Mc, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, E, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, St George-Hyslop, P, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, Jb, Schlachetzki, Jcm, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin, Vm, Grossmann, M, Trojanowski, Jq, van der Zee, J, Deschamps, W, Van Langenhove, T, Cruts, M, Van Broeckhoven, C, Cappa, Sf, Le Ber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, Je, Hjermind, Le, Riemenschneider, M, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, Mn, Fox, Nc, Warren, Jd, Spillantini, Mg, Morris, Hr, Rizzu, P, Heutnik, P, Snowden, J, Rollinson, S, Richardson, A, Gerhard, A, Bruni, Ac, Maletta, R, Frangipane, F, Cupidi, C, Bernardi, L, Anfossi, M, Gallo, M, Conidi, Me, Smirne, N, Rademakers, R, Baker, M, Dickson, Dw, Graff-Radford, Nr, Peterson, Rc, Knopman, D, Josephs, Ka, Boeve, Bf, Parisi, Je, Seeley, Ww, Miller, Bl, Karydas, Am, Rosen, H, van Swieten, Jc, Dopper, Egp, Seelaar, H, Pijnenburg, Yal, Scheltens, P, Logroscino, G, Capozzo, R, Novelli, V, Puca, Aa, Franceschi, M, Postiglione, A, Milan, G, Sorrentino, P, Kristiansen, M, Chiang, Hh, Graff, C, Pasquier, F, Rollin, A, Deramecourt, V, Lebert, F, Kapogiannis, D, Ferucci, L, Pickering-Brown, S, Singleton, Ab, Hardy, J, and Momeni, P.
Subjects: 0301 basic medicine, Linkage disequilibrium, Gene Expression, Genome-wide association study, Neurodegenerative, Medical and Health Sciences, Motor Neuron Diseases, 0302 clinical medicine, Medicine and Health Sciences, 2.1 Biological and endogenous factors, Corticobasal degeneration, genetics [Genetic Predisposition to Disease], genetics [Frontotemporal Dementia], Genetics, Medicine (all), Neurodegenerative Diseases, Single Nucleotide, Genomics, General Medicine, Middle Aged, Colitis, LRRK2, 3. Good health, Neurology, Manchester Institute for Collaborative Research on Ageing, Frontotemporal Dementia, Neurological, Medicine, Research Article, Frontotemporal dementia, ResearchInstitutes_Networks_Beacons/MICRA, Immunology, Rheumatoid Arthritis, Single-nucleotide polymorphism, Gastroenterology and Hepatology, Human leukocyte antigen, Biology, Autoimmune Disease, Polymorphism, Single Nucleotide, Autoimmune Diseases, 03 medical and health sciences, Rare Diseases, Rheumatology, Clinical Research, General & Internal Medicine, FTD GWA, Mental Health and Psychiatry, mental disorders, Acquired Cognitive Impairment, Genome-Wide Association Studies, medicine, Ulcerative Colitis, Humans, Inflammatory and Immune System, Genetic Predisposition to Disease, ddc:610, Polymorphism, Aged, Genetic association, Genome-Wide Association Study, International FTD-Genomics Consortium, Prevention, Arthritis, Human Genome, Inflammatory Bowel Disease, Amyotrophic Lateral Sclerosis, Neurosciences, Correction, Biology and Life Sciences, Computational Biology, nutritional and metabolic diseases, Human Genetics, Genome Analysis, medicine.disease, Brain Disorders, nervous system diseases, 030104 developmental biology, Genetic Loci, Genetics of Disease, Dementia, Clinical Immunology, Human medicine, Clinical Medicine, Digestive Diseases, 030217 neurology & neurosurgery
Abstract: Background Converging evidence suggests that immune-mediated dysfunction plays an important role in the pathogenesis of frontotemporal dementia (FTD). Although genetic studies have shown that immune-associated loci are associated with increased FTD risk, a systematic investigation of genetic overlap between immune-mediated diseases and the spectrum of FTD-related disorders has not been performed. Methods and findings Using large genome-wide association studies (GWASs) (total n = 192,886 cases and controls) and recently developed tools to quantify genetic overlap/pleiotropy, we systematically identified single nucleotide polymorphisms (SNPs) jointly associated with FTD-related disorders—namely, FTD, corticobasal degeneration (CBD), progressive supranuclear palsy (PSP), and amyotrophic lateral sclerosis (ALS)—and 1 or more immune-mediated diseases including Crohn disease, ulcerative colitis (UC), rheumatoid arthritis (RA), type 1 diabetes (T1D), celiac disease (CeD), and psoriasis. We found up to 270-fold genetic enrichment between FTD and RA, up to 160-fold genetic enrichment between FTD and UC, up to 180-fold genetic enrichment between FTD and T1D, and up to 175-fold genetic enrichment between FTD and CeD. In contrast, for CBD and PSP, only 1 of the 6 immune-mediated diseases produced genetic enrichment comparable to that seen for FTD, with up to 150-fold genetic enrichment between CBD and CeD and up to 180-fold enrichment between PSP and RA. Further, we found minimal enrichment between ALS and the immune-mediated diseases tested, with the highest levels of enrichment between ALS and RA (up to 20-fold). For FTD, at a conjunction false discovery rate < 0.05 and after excluding SNPs in linkage disequilibrium, we found that 8 of the 15 identified loci mapped to the human leukocyte antigen (HLA) region on Chromosome (Chr) 6. We also found novel candidate FTD susceptibility loci within LRRK2 (leucine rich repeat kinase 2), TBKBP1 (TBK1 binding protein 1), and PGBD5 (piggyBac transposable element derived 5). Functionally, we found that the expression of FTD–immune pleiotropic genes (particularly within the HLA region) is altered in postmortem brain tissue from patients with FTD and is enriched in microglia/macrophages compared to other central nervous system cell types. The main study limitation is that the results represent only clinically diagnosed individuals. Also, given the complex interconnectedness of the HLA region, we were not able to define the specific gene or genes on Chr 6 responsible for our pleiotropic signal. Conclusions We show immune-mediated genetic enrichment specifically in FTD, particularly within the HLA region. Our genetic results suggest that for a subset of patients, immune dysfunction may contribute to FTD risk. These findings have potential implications for clinical trials targeting immune dysfunction in patients with FTD., Rahul Desikan and colleagues use summary data from genome-wide association studies to investigate genetic overlap between frontotemporal dementia and a several immune-mediated diseases, and identify microglia and inflammation-associated genes that may play a role in FTD pathogenesis., Author summary Why was this study done? Frontotemporal dementia (FTD) is the leading cause of dementia in individuals less than 65 years old. Currently, there is no approved treatment of FTD and no diagnostic tests for predicting disease onset or measuring progression. Increasing evidence suggests that inflammation and immune system dysfunction play an important role in the pathogenesis of FTD. What did the researchers do and find? We used summary data from genome-wide association studies to investigate genetic overlap, or “pleiotropy,” between FTD and a variety of immune-mediated diseases. Through this approach, we found extensive FTD–immune genetic overlap within the HLA region on Chromosome 6, an area rich in genes related to microglial function, as well as in 3 genes not previously identified as contributing to the pathophysiology of FTD. Pointing to the functional relevance of these genetic results, we found that these candidate FTD–immune genes are differentially expressed in postmortem brains from patients with FTD compared to controls, and in microglia/macrophages compared with other central nervous system cells. Using bioinformatics tools, we explored protein and genetic interactions among our candidate FTD–immune genes. These results suggest that rather than a few individual loci, large portions of the HLA region may be associated with increased FTD risk. What do these findings mean? Immune dysfunction may play a role in the pathophysiology of a subset of FTD cases. For a subset of patients in whom immune dysfunction in general—and microglial activation in particular—is central to disease pathophysiology, anti-inflammatory treatment is an important area for further investigation.
Published: 2018
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8. Susceptible genes and disease mechanisms identified in frontotemporal dementia and frontotemporal dementia with Amyotrophic Lateral Sclerosis by DNA-methylation and GWAS

Author: Taskesen, E, Mishra, A, van der Sluis, S, Ferrari, R, Veldink, Jh, van Es MA4, Smit, Ab5, Posthuma, D1, 2, Hernandez DG, Pijnenburg Y., Nalls, Ma, Rohrer, Jd, Ramasamy, A, Kwok, Jbj, Dobson-Stone, C, Schofield, Pr, Halliday, Gm, Hodges, Jr, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, Nj, Benussi, L, Binetti, G, Ghidoni, Roberta, Forloni, G, Albani, D, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Waldö, Ml, Nilsson, K, Nilsson, C, Mackenzie, Ira, Hsiung, Gr, Mann, Dma, Grafman, J, Morris, Cm, Attems, J, Griffiths, Td, Mckeith, Ig, Thomas, Aj, Pietrini, P, Huey, Ed, Wassermann, Em, Baborie, A, Jaros, E, Tierney, Mc, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, R, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, George-Hyslop, Ps, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, Jb, Schlachetzki, Jcm, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin VM, Grossman, M, Trojanowski, Jq, van der Zee, J, Van Broeckhoven, C, Cappa, Sf, Leber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, Je, Hjermind, Le, Riemenschneider, GUNNAR MARKUS, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, Mn, Fox, Nc, Warren, Jd, Spillantini, Mg, Morris, Hr, Rizzu, P, Heutink, P, Snowden, Js, Rollinson, S, Richardson, A, Gerhard, A, Bruni, Ac, Maletta, R, Frangipane, F, Cupidi, C, Bernardi, Lara, Anfossi, M, Gallo, M, Conidi, Me, Smirne, N, Rademakers, R, Baker, M, Dickson, Dw, Graff-Radford, Nr, Petersen, Rc, Knopman, D, Josephs, Ka, Boeve, Bf, Parisi, Je, Seeley, Ww, Miller, Bl, Karydas, Am, Rosen, H, van Swieten JC, Dopper, Egp, Seelaar, H, Scheltens, P, Logroscino, G, Capozzo, R, Novelli, V, Puca, Aa, Franceschi, M, Postiglione, Antonio, Milan, Gian Luca, Sorrentino, Paolo Luigi, Kristiansen, M, Chiang, Hh, Graff, C, Pasquier, F, Rollin, A, Deramecourt, V, Lebouvier, T, Kapogiannis, D, Ferrucci, L, Pickering-Brown, S, Singleton, Ab, Hardy, J, Momeni, P., Rademakers, Rosa, International FTD-Genomics Consortium, Complex Trait Genetics, Amsterdam Neuroscience - Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience - Neurodegeneration, Amsterdam Neuroscience - Cellular & Molecular Mechanisms, Human genetics, APH - Quality of Care, Midwifery Science, Divisions, Neurology, Amsterdam Reproduction & Development (AR&D), Mishra, A [0000-0002-8141-1543], van der Sluis, S [0000-0001-9958-7216], van Es, MA [0000-0002-7709-5883], Posthuma, D [0000-0001-7582-2365], and Apollo - University of Cambridge Repository
Subjects: 0301 basic medicine, Candidate gene, Science, Genome-wide association study, Biology, Neurodegenerative, Article, 03 medical and health sciences, 0302 clinical medicine, Rare Diseases, SDG 3 - Good Health and Well-being, mental disorders, medicine, Journal Article, Acquired Cognitive Impairment, Genetics, 2.1 Biological and endogenous factors, Amyotrophic lateral sclerosis, Aetiology, General, Alzheimer's Disease Related Dementias (ADRD), Genetic association, Multidisciplinary, Genetic heterogeneity, International FTD-Genomics Consortium, Neurodegeneration, Human Genome, Neurosciences, nutritional and metabolic diseases, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), medicine.disease, nervous system diseases, Brain Disorders, Frontotemporal Dementia (FTD), 030104 developmental biology, DNA methylation, Neurological, Medicine, Dementia, Human medicine, ALS, 030217 neurology & neurosurgery, Frontotemporal dementia
Abstract: Frontotemporal dementia (FTD) is a neurodegenerative disorder predominantly affecting the frontal and temporal lobes. Genome-wide association studies (GWAS) on FTD identified only a few risk loci. One of the possible explanations is that FTD is clinically, pathologically, and genetically heterogeneous. An important open question is to what extent epigenetic factors contribute to FTD and whether these factors vary between FTD clinical subgroup. We compared the DNA-methylation levels of FTD cases (n = 128), and of FTD cases with Amyotrophic Lateral Sclerosis (FTD-ALS; n = 7) to those of unaffected controls (n = 193), which resulted in 14 and 224 candidate genes, respectively. Cluster analysis revealed significant class separation of FTD-ALS from controls. We could further specify genes with increased susceptibility for abnormal gene-transcript behavior by jointly analyzing DNA-methylation levels with the presence of mutations in a GWAS FTD-cohort. For FTD-ALS, this resulted in 9 potential candidate genes, whereas for FTD we detected 1 candidate gene (ELP2). Independent validation-sets confirmed the genes DLG1, METTL7A, KIAA1147, IGHMBP2, PCNX, UBTD2, WDR35, and ELP2/SLC39A6 among others. We could furthermore demonstrate that genes harboring mutations and/or displaying differential DNA-methylation, are involved in common pathways, and may therefore be critical for neurodegeneration in both FTD and FTD-ALS.
Published: 2017
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9. Shared genetic risk between corticobasal degeneration, progressive supranuclear palsy, and frontotemporal dementia

Author: Yokoyama, Jennifer S., Karch, Celeste M., Fan, Chun C., Bonham, Luke W., Naomi, Kouri, Ross, Owen A., Rosa, Rademakers, Jungsu, Kim, Yunpeng, Wang, Höglinger, Günter U., Ulrich, Muller, Raffaele, Ferrari, John, Hardy, International FTD-Genomics Consortium (IFGC Ferrari, R, Hernandez, Dg, Nalls, Ma, Rohrer, Jd, Ramasamy, A, Kwok, Jbj, Dobson-Stone, C, Schofield, Pr, Halliday, Gm, Hodges, Jr, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, Nj, Benussi, L, Binetti, G, Ghidoni, R, Forloni, G, Albani, D, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Landqvist Waldö, M, Nilsson, C, Mackenzie, Ira, Hsiung, Gyr, Mann, Dma, Grafman, J, Morris, Cm, Attems, J, Griffiths, Td, Mckeith, Ig, Thomas, Aj, Pietrini, P, Huey, Ed, Wassermann, Em, Baborie, A, Jaros, E, Tierney, Mc, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, R, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, St George-Hyslop, P, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, Jb, Schlachetzki, Jcm, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin VM, Grossman, M, Trojanowski, Jq, van der Zee, J, Cruts, M, Van Broeckhoven, C, Cappa, Sf, Leber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, Je, Hjermind, Le, Riemenschneider, M, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, Mn, Fox, Nc, Warren, Jd, Spillantini, Mg, Morris, Hr, Rizzu, P, Heutink, P, Snowden, Js, Rollinson, S, Richardson, A, Gerhard, A, Bruni, Ac, Maletta, R, Frangipane, F, Cupidi, C, Bernardi, L, Anfossi, M, Gallo, M, Conidi, Me, Smirne, N, Rademakers, R, Baker, M, Dickson, Dw, Graff-Radford, Nr, Petersen, Rc, Knopman, D, Josephs, Ka, Boeve, Bf, Parisi, Je, Seeley, Ww, Miller, Bl, Karydas, Am, Rosen, H, van Swieten JC, Dopper, Eg, Seelaar, H, Pijnenburg, Yal, Scheltens, P, Logroscino, G, Capozzo, R, Novelli, V, Puca, Aa, Franceschi, M, Postiglione, A, Milan, G, Sorrentino, P, Kristiansen, M, Chiang, Hh, Graff, C, Pasquier, F, Rollin, A, Deramecourt, V, Lebouvier, T, Kapogiannis, D, Ferrucci, L, Pickering-Brown, S, Singleton, Ab, Hardy, J, Momeni, P. )., Parastoo, Momeni, Sugrue, Leo P., Hess, Christopher P., James Barkovich, A., Boxer, Adam L., Seele, William W., Rabinovici, Gil D., Rosen, Howard J., Miller, Bruce L., Schmansky, Nicholas J., Bruce, Fischl, Hyman, Bradley T., Dickson, Dennis W., Schellenberg, Gerard D., Andreassen, Ole A., Dale, Anders M., Desikan, and Rahul S., and Int FTD-Genomics Consortium
Subjects: pathology [Tauopathies], 0301 basic medicine, Pathology, Aging, genetics [Basal Ganglia Diseases], Genome-wide association study, Neurodegenerative, diagnosis [Supranuclear Palsy, Progressive], diagnosis [Frontotemporal Dementia], pathology [Inclusion Bodies], 0302 clinical medicine, Neurology (clinical), Cellular and Molecular Neuroscience, Risk Factors, pathology [Neurons], Corticobasal degeneration, Supranuclear Palsy, 2.1 Biological and endogenous factors, Aetiology, genetics [Frontotemporal Dementia], Alzheimer's Disease Related Dementias (ADRD), Genetics, Inclusion Bodies, Neurons, genetics [Supranuclear Palsy, Progressive], Frontotemporal Dementia (FTD), Tauopathies, Frontotemporal Dementia, Neurological, Supranuclear Palsy, Progressive, Frontotemporal dementia, medicine.medical_specialty, pathology [Supranuclear Palsy, Progressive], Clinical Sciences, MAPT protein, human, Locus (genetics), Single-nucleotide polymorphism, tau Proteins, Biology, Article, Pathology and Forensic Medicine, Progressive supranuclear palsy, 03 medical and health sciences, Rare Diseases, Progressive, Basal Ganglia Diseases, mental disorders, medicine, Acquired Cognitive Impairment, Humans, ddc:610, Genetic association, Neurology & Neurosurgery, International FTD-Genomics Consortium, Prevention, Haplotype, Human Genome, Neurosciences, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), medicine.disease, metabolism [tau Proteins], digestive system diseases, Brain Disorders, 030104 developmental biology, pathology [Frontotemporal Dementia], Dementia, Human medicine, pathology [Basal Ganglia Diseases], 030217 neurology & neurosurgery
Abstract: Corticobasal degeneration (CBD), progressive supranuclear palsy (PSP) and a subset of frontotemporal dementia (FTD) are neurodegenerative disorders characterized by tau inclusions in neurons and glia (tauopathies). Although clinical, pathological and genetic evidence suggests overlapping pathobiology between CBD, PSP, and FTD, the relationship between these disorders is still not well understood. Using summary statistics (odds ratios and p values) from large genome-wide association studies (total n=14,286 cases and controls) and recently established genetic methods, we investigated the genetic overlap between CBD and PSP and CBD and FTD. We found up to 800-fold enrichment of genetic risk in CBD across different levels of significance for PSP or FTD. In addition to NSF (tagging the MAPT H1 haplotype), we observed that SNPs in or near MOBP, CXCR4, EGFR, and GLDC showed significant genetic overlap between CBD and PSP, whereas only SNPs tagging the MAPT haplotype overlapped between CBD and FTD. The risk alleles of the shared SNPs were associated with expression changes in cis-genes. Evaluating transcriptome levels across adult human brains, we found a unique neuroanatomic gene expression signature for each of the five overlapping gene loci (omnibus ANOVA p&nbsp
Published: 2017
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10. Hereditary dystonia or parkinson – a patient with both – and problems concerning diagnostic, treatment and genetic counselling

Author: Hjermind, LE, Johannsen, LG, Blau, N, Wevers, RA, Lucking, CB, Hertz, JM, Friberg, L, Regeur, L, Nielsen, JE, and Sørensen, SA
Published: 2024
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11. Observing Huntington's disease: the European Huntington's Disease Network's REGISTRY

Author: Orth, M, Handley, Oj, Schwenke, C, Dunnett, S, Wild, Ej, Tabrizi, Sj, Landwehrmeyer, Gb, Bachoud Lévi AC, Bentivoglio, Ar, Biunno, I, Bonelli, R, Burgunder, Jm, Dunnett, Sb, Ferreira, Jj, Giuliano, J, Heiberg, A, Illmann, T, van Kammen, D, Landwehrmeye, Gb, Levey, J, Nielsen, Je, Päivärinta, M, Roos, Ra, Sebastián, Ar, Vandenberghe, W, Verellen Dumoulin, C, Zaremba, J, Uhrova, T, Wahlström, J, Wallner, M, Barth, K, Guedes, Lc, Finisterra, Am, Garde, Mb, Bos, R, Burg, S, Ecker, D, Held, C, Koppers, K, Laurà, M, Descals, Am, Mclean, T, Mestre, T, Minster, S, Monza, D, Townhill, J, Padieu, H, Paterski, L, Peppa, N, Koivisto, Sp, Rialland, A, Røren, N, Sasinková, P, Cubillo, Pt, Tritsch, C, van Walsem MR, Witjes Ané MN, Yudina, E, Zielonka, D, Zielonka, E, Zinzi, P, Bonelli, Rm, Herranhof, B, Holl, A, Kapfhammer, Hp, Koppitz, M, Magnet, M, Otti, D, Painold, A, Reisinger, K, Scheibl, M, Hecht, K, Lilek, S, Müller, N, Schöggl, H, Ullah, J, Brugger, F, Hepperger, C, Hotter, A, Mahlknecht, P, Nocker, M, Seppi, K, Wenning, G, Buratti, L, Hametner, Em, Holas, C, Hussl, A, Mair, K, Poewe, W, Wolf, E, Zangerl, A, Braunwarth, Em, Sinadinosa, D, Walleczek, Am, Ladurner, G, Staffen, W, Ribaï, P, Flamez, A, Morez, V, de Raedt, S, Boogaerts, A, van Reijen, D, Klempíř, J, Kucharík, M, Roth, J, Šenkárová, Z, Hasholt, L, Hjermind, Le, Jakobsen, O, Nørremølle, A, Sørensen, Sa, Stokholm, J, Nielsen, J, Hiivola, H, Martikainen, K, Tuuha, K, Peippo, M, Sipponen, M, Ignatius, J, Kärppä, M, Åman, J, Santala, M, Allain, P, Guérid, Ma, Gohier, B, Olivier, A, Prundean, A, Scherer Gagou, C, Verny, C, Babiloni, B, Debruxelles, S, Goizet, C, Lafoucrière, D, De Bruycker, C, Carette, As, Decorte, E, Delval, A, Delliaux, M, Dujardin, K, Peter, M, Plomhouse, L, Simonin, C, Thibault Tanchou, S, Bellonet, M, Duru, C, Krystkowiak, P, Roussel, M, Wannepain, S, Azulay, Jp, Chabot, C, Delphini, M, Eusebio, A, Grosjean, H, Mundler, L, Nowak, M, Rudolf, G, Steinmetz, G, Tranchant, C, Wagner, C, Zimmermann, Ma, Calvas, F, Cheriet, S, Démonet, Jf, Galitzky, M, Kosinski, Cm, Milkereit, E, Probst, D, Sass, C, Schiefer, J, Schlangen, C, Werner, Cj, Gelderblom, H, Priller, J, Prüss, H, Spruth, Ej, Andrich, J, Hoffmann, R, Kraus, Ph, Muth, S, Prehn, C, Saft, C, Salmen, S, Stamm, C, Steiner, T, Strassburger, K, Lange, H, Friedrich, A, Hunger, U, Löhle, M, Schmidt, S, Storch, A, Wolz, A, Wolz, M, Lambeck, J, Zucker, B, Boelmans, K, Ganos, C, Hidding, U, Lewerenz, J, Münchau, A, Schmalfeld, J, Stubbe, L, Zittel, S, Diercks, G, Gorzolla, H, Schrader, C, Heinicke, W, Ribbat, M, Longinus, B, Bürk, K, Möller, Jc, Rissling, I, Peinemann, A, Städtler, M, Weindl, A, Bechtel, N, Beckmann, H, Bohlen, S, Hölzner, E, Reilmann, R, Rohm, S, Rumpf, S, Schepers, S, Beister, A, Dose, M, Hammer, K, Kieni, J, Leythaeuser, G, Marquard, R, Raab, T, Richter, S, Selimbegovic Turkovic, A, Schrenk, C, Schuierer, M, Wiedemann, A, Buck, A, Connemann, J, Eschenbach, C, Landwehrmeyer, B, Lezius, F, Nepper, S, 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Svenningsson, P, Reza Soltani TW, Constantinescu, R, Fredlund, G, Høsterey Ugander, U, Neleborn Lingefjärd, L, Esmaeilzadeh, M, Tedroff, J, Winnberg, E, Björn, Y, Ekwall, C, Gøller, Ml, Johansson, A, Wiklund, L, Petersen, Å, Reimer, J, Widner, H, Burgunder, Y, Stebler, Y, Kaelin, A, Romero, I, Schüpbach, M, Zaugg, Sw, Jack, R, Matheson, K, Miedzybrodzka, Z, Rae, D, Simpson, S, Summers, F, Ure, A, Crooks, J, Curtis, A, de Souza Keylock, J, Rickards, H, Wright, J, Hayward, B, Sieradzan, K, Wright, A, Barker, Ra, Di Pietro, A, Fisher, K, Goodman, A, Hill, S, Kershaw, A, Mason, S, Paterson, N, Raymond, L, Bisson, J, Busse, M, Clenaghan, C, Ellison Rose, L, Handley, O, Hunt, S, Price, K, Rosser, A, Edwards, M, Hughes, T, Mcgill, M, Pearson, P, Porteous, M, Smith, P, Zeman, A, Causley, A, Harrower, T, Howcroft, D, Lambord, N, Rankin, J, Brockie, P, Foster, J, Johns, N, Mckenzie, S, Rothery, J, Thomas, G, Yates, S, Miller, J, Ritchie, S, Burrows, L, Fletcher, A, Harding, A, Laver, F, Silva, 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O., Orth, M, European Huntington's Disease, Network, Handley, Oj, Schwenke, C, Dunnett, S, Wild, Ej, Tabrizi, Sj, Bachoud Lévi AC, Landwehrmeyer G. B., Bentivoglio, Ar, Biunno, I, Bonelli, R, Burgunder, Jm, Dunnett, Sb, Ferreira, Jj, Giuliano, J, Heiberg, A, Illmann, T, van Kammen, D, Landwehrmeye, Gb, Levey, J, Nielsen, Je, Päivärinta, M, Roos, Ra, Sebastián, Ar, Vandenberghe, W, Verellen Dumoulin, C, Zaremba, J, Uhrova, T, Wahlström, J, Wallner, M, Barth, K, Guedes, Lc, Finisterra, Am, Garde, Mb, Bos, R, Burg, S, Ecker, D, Held, C, Koppers, K, Laurà, M, Descals, Am, Mclean, T, Mestre, T, Minster, S, Monza, D, Townhill, J, Padieu, H, Paterski, L, Peppa, N, Koivisto, Sp, Rialland, A, Røren, N, Sasinková, P, Cubillo, Pt, Tritsch, C, van Walsem, Mr, Witjes Ané, Mn, Yudina, E, Zielonka, D, Zielonka, E, Zinzi, P, Bonelli, Rm, Herranhof, B, Holl, A, Kapfhammer, Hp, Koppitz, M, Magnet, M, Otti, D, Painold, A, Reisinger, K, Scheibl, M, Hecht, K, Lilek, S, Müller, N, Schöggl, H, Ullah, J, Brugger, F, Hepperger, C, Hotter, A, Mahlknecht, P, Nocker, M, Seppi, K, Wenning, G, Buratti, L, Hametner, Em, Holas, C, Hussl, A, Mair, K, Poewe, W, 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Capellari, S, Cortelli, P, Gallassi, R, Poda, R, Rizzo, G, Scaglione, C, Bertini, E, Ghelli, E, Ginestroni, A, Massaro, F, Mechi, C, Paganini, M, Piacentini, S, Pradella, S, Romoli, Am, Sorbi, S, Abbruzzese, G, di Poggio, Mb, Di Maria, E, Ferrandes, G, Mandich, P, Marchese, R, Albanese, A, Di Bella, D, Di Donato, S, Gellera, C, Genitrini, S, Mariotti, C, Nanetti, L, Paridi, D, Soliveri, P, Tomasello, C, DE MICHELE, Giuseppe, Di Maio, L, Rinaldi, Carlo, Russo, Cv, Salvatore, Elena, Tucci, T, Cannella, M, Codella, V, De Gregorio, F, De Nicola, N, Martino, T, Simonelli, M, Squitieri, F, Catalli, C, Di Giacopo, R, Fasano, A, Frontali, M, Guidubaldi, A, Ialongo, T, Jacopini, G, Loria, G, Modoni, A, Piano, C, Chiara, P, Quaranta, D, Romano, S, Soleti, F, Spadaro, M, van Hout, M, van Vugt, Jp, de Weert, Am, Bolwijn, Jj, Dekker, M, Leenders, Kl, van Oostrom, Jc, Dumas, Em, Jurgens, Ck, van den Bogaard, Sj, 't Hart, Ep, Kremer, B, Verstappen, Cc, Frich, J, Wehus, R, Aaserud, O, Borgerød, N, Bjørgo, K, Fannemel, M, Gørvell, P, Pro Koivisto, S, Retterstøl, L, Overland, T, Stokke, B, Bjørnevoll, I, Sando, Sb, Blinkenberg, Eø, Hauge, E, Tyvoll, H, Sitek, E, Slawek, J, Soltan, W, Boczarska Jedynak, M, Jasinska Myga, B, Opala, G, Kłodowska Duda, G, Banaszkiewicz, K, Szczudlik, A, Rudzińska, M, Wójcik, M, Dec, M, Krawczyk, M, Bryl, A, Ciesielska, A, Klimberg, A, Marcinkowski, J, Sempołowicz, J, Samara, H, Janik, P, Kalbarczyk, A, Kwiecinski, H, Jamrozik, Z, Antczak, J, Jachinska, K, Rakowicz, M, Richter, P, Ryglewicz, D, Witkowski, G, Zdzienicka, E, Sułek, A, Krysa, W, Júlio, F, Januário, C, Guedes, L, Coelho, M, Mendes, T, Valadas, A, Timóteo, Â, Costa, C, Vale, J, Cavaco, S, Damásio, J, Magalhães, M, Gago, M, Garrett, C, Guerra, Mr, Solis, P, Herrera, Cd, Garcia, Pm, Barrero, F, Morales, B, Cubo, E, Mariscal, N, Alonso Frech, F, Perez, Mr, Fenollar, M, García, Rg, Quiroga, Pp, Rivera, Sv, Villanueva, C, Bascuñana, M, Ventura, Mf, Ribas, Gg, de Yébenes, Jg, Moreno, Jl, Ruíz, Pj, Martínez Descals, A, Artiga, Mj, Sánchez, V, Perea, Mf, Lorenza, F, Torres, Mm, Reinante, G, Moreau, Lv, Barbera, Ma, Guia, Db, Hernanz, Lc, Catena, Jl, Ferrer, Pq, Carruesco, Gt, Bas, J, Busquets, N, Calopa, M, Buongiorno, Mt, Muñoz, E, Elorza, Md, López, Cd, Terol, Sd, Robert, Mf, Ruíz, Bg, Casado, Ag, Martínez, Ih, Viladrich, Cm, Pons i., Càrdenas R, Roca, E, Llesoy, Jr, Idiago, Jm, Vergara, Mr, García, S, Villa Riballo, A, González, Sg, Guisasola, Lm, Salvador, C, San Martín, E, Gorospe, A, Legarda, I, Arques, Pn, Rodríguez, Mj, Vives, B, Gaston, I, Ramos Arroyo, Ma, Moreno, Jm, Peña, Jc, Avarvarei, Ld, Bastida, Am, Recio, Mf, Vergé, Lr, Carrillo, F, Cáceres, Mt, Mir, P, Suarez, Mj, Bosca, M, Burguera, Ja, Garcia, Ac, Martínez, Lm, del Val, Jl, Loutfi, G, Olofsson, C, Stattin, El, Westman, L, Wikström, B, Höglund, A, Pålhagen, Se, Paucar, M, Sandström, B, Soltani, R, Svenningsson, P, Reza Soltani, Tw, Constantinescu, R, Fredlund, G, Høsterey Ugander, U, Neleborn Lingefjärd, L, Esmaeilzadeh, M, Tedroff, J, Winnberg, E, Björn, Y, Ekwall, C, Gøller, Ml, Johansson, A, Wiklund, L, Petersen, Å, Reimer, J, Widner, H, Burgunder, Y, Stebler, Y, Kaelin, A, Romero, I, Schüpbach, M, Zaugg, Sw, Jack, R, Matheson, K, Miedzybrodzka, Z, Rae, D, Simpson, S, Summers, F, Ure, A, Crooks, J, Curtis, A, de Souza Keylock, J, Rickards, H, Wright, J, Hayward, B, Sieradzan, K, Wright, A, Barker, Ra, Di Pietro, A, Fisher, K, Goodman, A, Hill, S, Kershaw, A, Mason, S, Paterson, N, Raymond, L, Bisson, J, Busse, M, Clenaghan, C, Ellison Rose, L, Handley, O, Hunt, S, Price, K, Rosser, A, Edwards, M, Hughes, T, Mcgill, M, Pearson, P, Porteous, M, Smith, P, Zeman, A, Causley, A, Harrower, T, Howcroft, D, Lambord, N, Rankin, J, Brockie, P, Foster, J, Johns, N, Mckenzie, S, Rothery, J, Thomas, G, Yates, S, Miller, J, Ritchie, S, Burrows, L, Fletcher, A, Harding, A, Laver, F, Silva, M, Thomson, A, Burns, P, Chu, C, Evans, C, Hamer, S, Markova, I, Raman, A, Barnes, K, Hobson, E, Jamieson, S, Thomson, J, Toscano, J, Wild, S, Yardumian, P, Bourne, C, Clayton, C, Dipple, H, Clapton, J, Grant, D, Hallam, C, Middleton, J, Murch, A, Patino, D, Bate, L, Pate, L, Andrews, T, Dougherty, A, Kavalier, F, Golding, C, Lashwood, A, Robertson, D, Ruddy, D, Whaite, A, Patton, M, Peterson, M, Rose, S, Bruno, S, Chu, E, Doherty, K, Henley, S, Lahiri, N, Novak, M, Patel, A, Read, J, Rosser, E, Say, M, Tabrizi, S, Taylor, R, Warner, T, Wild, E, Arran, N, Callaghan, J, Craufurd, D, Fullam, R, Howard, L, Huson, S, Oughton, E, Partington Jones, L, Snowden, J, Sollom, A, Stopford, C, Thompson, J, Trender Gerhad, I, Verstraelen, N, Westmoreland, L, Nemeth, Ah, Siuda, G, Harrison, D, Hughes, M, Parkinson, A, Soltysiak, B, Burn, J, Coleman, C, Majeed, T, Verstraelen Ritchie, N, Bandmann, O, Bradbury, A, Gill, P, Fairtlough, H, Fillingham, K, Foustanos, I, O'Donovan, K, Tidswell, K, Quarrell, O., Faculty of Economic and Social Sciences and Solvay Business School, Neurology, Clinical sciences, Neuroprotection & Neuromodulation, Orth M., European Huntington's Disease Network, Handley O.J., Schwenke C., Dunnet S., Wild E.J., Tabrizi S.J., Landwehrmeyer G.B., Capellari S., Cortelli P., Gallassi R., Poda R., Rizzo G., and Scaglione C.
Subjects: Gerontology, medicine.medical_specialty, Neurology, International Cooperation, Disease, Irritability, Data Collection/methods, Huntington's disease, medicine, Humans, Registries, Psychiatry, Suicidal ideation, Disease burden, business.industry, Data Collection, medicine.disease, Europe, Huntington Disease, Psychiatry and Mental health, European Huntington's Disease Network, Surgery, Observational study, Neurology (clinical), medicine.symptom, business
Abstract: BACKGROUND: Huntington's disease (HD) is a rare triplet repeat (CAG) disorder. Advanced, multi-centre, multi-national research frameworks are needed to study simultaneously multiple complementary aspects of HD. This includes the natural history of HD, its management and the collection of clinical information and biosamples for research. METHODS: We report on cross-sectional data of the first 1766 participants in REGISTRY, the European Huntington's Disease Network's (EHDN), multi-lingual, multi-national prospective observational study of HD in Europe. Data collection (demographics, phenotype, genotype, medication, co-morbidities, biosamples) followed a standard protocol. RESULTS: Phenotype, and the HD genotype, of manifest HD participants across different European regions was similar. Motor onset was most common (48%) with a non-motor onset in more than a third of participants. Motor signs increased, and cognitive abilities and functional capacity declined as the disease burden (CAGn-35.5) X age) increased. A life-time history of behavioural symptoms was common, but the behavioural score was not related to disease burden. One fifth of participants had severe psychiatric problems, e.g. suicidal ideation and attempts, and/or irritability/aggression, with psychosis being less common. Participants on anti-dyskinetic medication had a higher motor and lower cognitive score, were older, and more prone to physical trauma. A higher motor and a lower cognitive score predicted more advanced disease. CONCLUSIONS: The unparalleled collection of clinical data and biomaterials within the EHDN's REGISTRY can expedite the search for disease modifiers (genetic and environmental) of age at onset and disease progression that could be harnessed for the development of novel treatments.
Published: 2011

12. Normal and mutant HTT interact to affect clinical severity and progression in Huntington disease

Author: Aziz, Na, Jurgens, Ck, Landwehrmeyer, Gb, Ehdn, Rsg, van Roon Mom, Wm, van Ommen, Gj, Stijnen, T, Roos, Ra, Bachoud Levi, Ac, Bentivoglio, Ar, Biunno, I, Bonelli, R, Burgunder, Jm, Dunnett, Sb, Ferreira, J, Handley, Oj, Heiberg, A, Illmann, T, Levey, J, Nielsen, Je, Päivärinta, M, Rojo Sebastian, A, Tabrizi, Sj, Vandenberghe, W, Verellen Dumoulin, C, Zaremba, J, Uhrova, T, Wahlstrom, J, Schwenke, C, Orth, M, Wallner, M, Barth, K, Bascunana Garde, M, Ros, R, Ecker, D, Heinonen, N, Held, C, Laura, M, Martinez Descals, A, Mestre, T, Monza, D, Naji, J, Padieu, H, Pro Koivisto, S, Rialland, A, Sasinkova, P, Trigo Cubillo, P, van Walsem, M, Witjes Ane, Mn, Zielonka, D, Bonelli, Rm, Herranhof, B, Hodl, A, Koppitz, M, Magnet, M, Otti, D, Painold, A, Reisinger, K, Flamez, A, Morez, V, de Raedt, S, Ribai, P, Van Reijen, D, Hasholt, L, Hjermind, Le, Jakobsen, O, Norremolle, A, Sorensen, Sa, Stokholm, J, Peippo, M, Sipponen, M, Hiivola, H, Martikainen, K, Tuuha, K, Kosinski, Cm, Probst, D, Sass, C, Schiefer, J, Schlangen, C, Werner, Cj, Priller, J, Prüb, H, Andrich, J, Hoffmann, R, Kraus, P, Prehn, C, Saft, C, Salmen, S, Strabburger, K, Lange, H, Hunger, U, Löhle, M, Schmidt, S, Storch, A, Wolz, A, Wolz, M, Lammbeck, J, Zucker, B, Hidding, U, Münchau, A, Stubbe, L, Heinicke, W, Longinus, B, Möller, Jc, Rissling, I, Peinemann, A, Städtler, M, Weindl, A, Bohlen, S, Reilmann, R, Beuster, A, Dose, M, Leythaeuser, G, Marquard, R, Schrenk, C, Schuierer, M, Wiedemann, A, Landwehrmeyer, B, Lezius, F, Trautmann, S, Bertini, E, Mechi, C, Paganini, M, Piacentini, S, Romoli, M, Sorbi, S, Abbruzzese, Giovanni, Bandettini di Poggio, M, Ferrandes, G, Mandes, P, Marchese, R, Albanese, A, Di Donato, S, Mariotti, C, Soliveri, P, Carlo, R, Luigi, Dm, De michele, G, Rinaldi, C, Salvatore, E, Tucci, T, Ciarmiello, A, Martino, T, Simonelli, M, Squitieri, F, Fasano, A, Frontali, M, Guidubaldi, A, Lalongo, T, Jacopini, G, Loria, G, Piano, C, Romano, S, Soleti, F, Spadaro, M, Zinzi, P, van Walsem, Mr, Bjørgo, K, Fannemel, M, Gørvell, P, Retterstøl, L, Bjørnevoll, I, Sando, Sb, Sitek, Ej, Slawek, J, Soltan, W, Rudzinska, M, Szczudlik, A, Wójcik, M, Bryl, A, Ciesielska, A, Klimberg, A, Kozubski, W, Marcinkowski, J, Sempolowicz, Pj, Zielona, D, Janik, P, Kalbarczyk, A, Kwiecinski, H, Jamrozik, Z, Antczak, J, Rakowicz, M, Richter, P, Ryglewicz, D, Zdzienicka, E, Costa, C, Coelho, M, Ferreira, Jj, Rosa, Mm, Valadas, A, Gago, M, Garrett, C, Guerra, Mr, Bas, J, Calopa, M, Barberà, Ma, Badenes, D, Casas, L, Arroyo, Se, Vara, Jh, Krupinski, J, López, J, Obdulia, M, Ferrer, Pq, Sebastián, Ar, Contreras, Sr, Carruesco, Gt, Cubo, E, Mariscal, N, Sánchez, J, Barrero, Fj, Morales, B, Garcia Ramos Garcia, R, Pin Quiroga, P, Villanueva, C, Ruiz Espiga, Pj, Martinez, A, Saiz Artiga, Mj, Sánchez, V, Bascuñana, M, Fatas, M, Ribas, Gg, de Yébenes, Jg, López Moreno, Jl, Schwarz, C, Cubillo, Pt, Arques, Pn, Gorospe, A, Legarda, I, Rodriguez, Mj, Gaston, I, Ramos Arroyo, Ma, del Val, Jl, Martinez, L, Romero, I, Schüpbach, M, Zaugg, Sw, van Hout, Ms, van Vugt, Jp, de Weert, Am, Bolwijn, Jj, Dekker, M, Leenders, Kl, van Oostrom, Jc, Bos, R, Dumas, E, Witjes Ané, Mn, Matheson, K, Rae, D, Simpson, S, Summers, F, Ure, A, Curtis, A, Keylock, J, Rickards, H, Wright, J, Barker, Ra, Fisher, K, Goyder Goodman, Ao, Hill, S, Kershaw, A, Mason, S, Paterson, N, Raymond, L, Bisson, J, Busse, M, Ellison Rose, L, Handley, O, Price, K, Rosser, A, Edwards, M, De Sousa, Pa, Hughes, T, Mcgill, M, Pearson, P, Porteous, M, Zema, A, Brockie, P, Foster, J, Johns, N, Mckenzie, S, Thomas, G, Burrows, L, Fletcher, A, Laver, F, Silva, M, Thomas, A, Chu, C, Hobson, E, Jamieson, S, Toscano, J, Wild, S, Yardumian, P, Bourne, C, Clayton, C, Dipple, H, Grant, J, Gross, D, Hallam, C, Middleton, J, Murch, A, Andrews, T, Dougherty, A, Kavalier, F, Golding, C, Lashwood, A, Robertson, D, Ruddy, D, Whaite, A, Bruno, S, Henley, S, O'Driscoll, C, Patel, A, Rosser, E, Tabrizi, S, Taylor, R, Warner, T, Wild, E, Arran, N, Craufurd, D, Fullam, R, Howard, L, Huson, S, Partington Jones, L, Ritchie, N, Snowden, J, Solom, A, Stopford, C, Thompson, J, Westmoreland, L, Nemeth, Ah, Siuda, G, Bandmann, O, Bradbury, A, Fillingham, K, Foustanos, I, Quarrell, O, Reynders, H, Robertson, L, Tidswell, K., Mandich, Paola, Aziz, Na, Jurgens, Ck, Landwehrmeyer, Gb, EHDN Registry Study, Group, van Roon Mom, Wm, van Ommen, Gj, Stijnen, T, Bachoud Levi AC, Roos R. A., Bentivoglio, Ar, Biunno, I, Bonelli, R, Burgunder, Jm, Dunnett, Sb, Ferreira, J, Handley, Oj, Heiberg, A, Illmann, T, Levey, J, Nielsen, Je, Päivärinta, M, Roos, Ra, Rojo Sebastian, A, Tabrizi, Sj, Vandenberghe, W, Verellen Dumoulin, C, Zaremba, J, Uhrova, T, Wahlstrom, J, Schwenke, C, Orth, M, Wallner, M, Barth, K, Bascunana Garde, M, Ros, R, Ecker, D, Heinonen, N, Held, C, Laura, M, Martinez Descals, A, Mestre, T, Monza, D, Naji, J, Padieu, H, Pro Koivisto, S, Rialland, A, Sasinkova, P, Trigo Cubillo, P, van Walsem, M, Witjes Ane, Mn, Zielonka, D, Bonelli, Rm, Herranhof, B, Hodl, A, Koppitz, M, Magnet, M, Otti, D, Painold, A, Reisinger, K, Flamez, A, Morez, V, de Raedt, S, Ribai, P, Van Reijen, D, Hasholt, L, Hjermind, Le, Jakobsen, O, Norremolle, A, Sorensen, Sa, Stokholm, J, Peippo, M, Sipponen, M, Hiivola, H, Martikainen, K, Tuuha, K, Kosinski, Cm, Probst, D, Sass, C, Schiefer, J, Schlangen, C, Werner, Cj, Priller, J, Prüb, H, Andrich, J, Hoffmann, R, Kraus, P, Prehn, C, Saft, C, Salmen, S, Strabburger, K, Lange, H, Hunger, U, Löhle, M, Schmidt, S, Storch, A, Wolz, A, Wolz, M, Lammbeck, J, Zucker, B, Hidding, U, Münchau, A, Stubbe, L, Heinicke, W, Longinus, B, Möller, Jc, Rissling, I, Peinemann, A, Städtler, M, Weindl, A, Bohlen, S, Reilmann, R, Beuster, A, Dose, M, Leythaeuser, G, Marquard, R, Schrenk, C, Schuierer, M, Wiedemann, A, Landwehrmeyer, B, Lezius, F, Trautmann, S, Bertini, E, Mechi, C, Paganini, M, Piacentini, S, Romoli, M, Sorbi, S, Abbruzzese, G, Bandettini di Poggio, M, Ferrandes, G, Mandes, P, Marchese, R, Albanese, A, Di Donato, S, Mariotti, C, Soliveri, P, Carlo, R, Luigi, Dm, DE MICHELE, Giuseppe, Rinaldi, Carlo, Salvatore, Elena, Tucci, Tecla, Ciarmielo, A, Martino, T, Simonelli, M, Squitieri, F, Fasano, A, Frontali, M, Guidubaldi, A, Lalongo, T, Jacopini, G, Loria, G, Piano, C, Romano, S, Soleti, F, Spadaro, M, Zinzi, P, van Walsem, Mr, Bjørgo, K, Fannemel, M, Gørvell, P, Retterstøl, L, Bjørnevoll, I, Sando, Sb, Sitek, Ej, Slawek, J, Soltan, W, Rudzinska, M, Szczudlik, A, Wójcik, M, Bryl, A, Ciesielska, A, Klimberg, A, Kozubski, W, Marcinkowski, J, Sempolowicz, Pj, Zielona, D, Janik, P, Kalbarczyk, A, Kwiecinski, H, Jamrozik, Z, Antczak, J, Rakowicz, M, Richter, P, Ryglewicz, D, Zdzienicka, E, Costa, C, Coelho, M, Ferreira, Jj, Rosa, Mm, Valadas, A, Gago, M, Garrett, C, Guerra, Mr, Bas, J, Calopa, M, Barberà, Ma, Badenes, D, Casas, L, Arroyo, Se, Vara, Jh, Krupinski, J, López, J, Obdulia, M, Ferrer, Pq, Sebastián, Ar, Contreras, Sr, Carruesco, Gt, Cubo, E, Mariscal, N, Sánchez, J, Barrero, Fj, Morales, B, Garcia Ramos Garcia, R, Pin Quiroga, P, Villanueva, C, Ruiz Espiga, Pj, Martinez, A, Saiz Artiga, Mj, Sánchez, V, Bascuñana, M, Fatas, M, Ribas, Gg, de Yébenes, Jg, López Moreno, Jl, Schwarz, C, Cubillo, Pt, Arques, Pn, Gorospe, A, Legarda, I, Rodriguez, Mj, Gaston, I, Ramos Arroyo, Ma, del Val, Jl, Martinez, L, Romero, I, Schüpbach, M, Zaugg, Sw, van Hout, M, van Vugt, Jp, de Weert, Am, Bolwijn, Jj, Dekker, M, Leenders, Kl, van Oostrom, Jc, Bos, R, Dumas, E, Witjes Ané, Mn, Matheson, K, Rae, D, Simpson, S, Summers, F, Ure, A, Curtis, A, Keylock, J, Rickards, H, Wright, J, Barker, Ra, Fisher, K, Goyder Goodman, Ao, Hill, S, Kershaw, A, Mason, S, Paterson, N, Raymond, L, Bisson, J, Busse, M, Ellison Rose, L, Handley, O, Price, K, Rosser, A, Edwards, M, De Sousa, Pa, Hughes, T, Mcgill, M, Pearson, P, Porteous, M, Zema, A, Brockie, P, Foster, J, Johns, N, Mckenzie, S, Thomas, G, Burrows, L, Fletcher, A, Laver, F, Silva, M, Thomas, A, Chu, C, Hobson, E, Jamieson, S, Toscano, J, Wild, S, Yardumian, P, Bourne, C, Clayton, C, Dipple, H, Grant, J, Gross, D, Hallam, C, Middleton, J, Murch, A, Andrews, T, Dougherty, A, Kavalier, F, Golding, C, Lashwood, A, Robertson, D, Ruddy, D, Whaite, A, Bruno, S, Henley, S, O'Driscoll, C, Patel, A, Rosser, E, Tabrizi, S, Taylor, R, Warner, T, Wild, E, Arran, N, Craufurd, D, Fullam, R, Howard, L, Huson, S, Partington Jones, L, Ritchie, N, Snowden, J, Solom, A, Stopford, C, Thompson, J, Westmoreland, L, Nemeth, Ah, Siuda, G, Bandmann, O, Bradbury, A, Fillingham, K, Foustanos, I, Quarrell, O, Reynders, H, Robertson, L, Tidswell, K., Neurology, Clinical sciences, and Neuroprotection & Neuromodulation
Subjects: Adult, Male, medicine.medical_specialty, Pathology, congenital, hereditary, and neonatal diseases and abnormalities, Huntingtin, Adolescent, Huntington Disease/epidemiology, Serotonin Plasma Membrane Transport Proteins/genetics, Severity of Illness Index, Basal Ganglia, Central nervous system disease, Young Adult, Degenerative disease, Internal medicine, Basal ganglia, Severity of illness, mental disorders, medicine, Humans, Prospective Studies, Allele, Age of Onset, Child, Basal Ganglia/pathology, Aged, Serotonin Plasma Membrane Transport Proteins, Middle Aged, medicine.disease, Magnetic Resonance Imaging, Endocrinology, Huntington Disease, Mutation, Disease Progression, Female, Neurology (clinical), Age of onset, Trinucleotide repeat expansion, Psychology, Trinucleotide Repeat Expansion, Follow-Up Studies
Abstract: OBJECTIVE: Huntington disease (HD) is an autosomal dominant neurodegenerative disorder caused by a CAG repeat expansion in the HD gene (HTT). We aimed to assess whether interaction between CAG repeat sizes in the mutant and normal allele could affect disease severity and progression. METHODS: Using linear regression and mixed-effects models, the influence of mutant and normal CAG repeat sizes interaction was assessed on 1) age at onset in 921 patients with HD, 2) clinical severity and progression in 512 of these patients with follow-up data available, and 3) basal ganglia volume on magnetic resonance images in 16 premanifest HD mutation carriers. RESULTS: Normal and mutant CAG repeat sizes interacted to influence 1) age at onset (p = 0.001), 2) severity or progression of motor, cognitive, and functional, but not behavioral, symptoms in patients with HD (all p < 0.05), and 3) in premanifest subjects, basal ganglia volumes (p < 0.05). In subjects with mutant CAG expansions in the low range, increasing size of the normal repeat correlated with more severe symptoms and pathology, whereas for those subjects with expansions in the high range, increasing size of the normal repeat correlated with less severe symptoms and pathology. CONCLUSIONS: Increasing CAG repeat size in normal HTT diminishes the association between mutant CAG repeat size and disease severity and progression in Huntington disease. The underlying mechanism may involve interaction of the polyglutamine domains of normal and mutant huntingtin (fragments) and needs further elucidation. These findings may have predictive value and are essential for the design and interpretation of future therapeutic trials.
Published: 2009

13. A Randomized, Double-blind, Placebo-Controlled Study of Latrepirdine in Patients With Mild to Moderate Huntington Disease

Author: Kieburtz, K, Landwehrmeyer, GB, Cudkowicz, M, Dorsey, ER, Feigin, A, Hunt, V, Kayson, E, McDermott, M, Noonberg, S, Seitz, W, Soliveri, P, Walker, F, Burgunder, J-M, Romero, I, Magara, A, Stebler, Y, Rickards, H, Wright, J, De Souza, J, Barker, RA, Mason, S, Di Pietro, A, Goodman, A, O'Keeffe, D, Langlois, M, Ferland, G, Verret, L, Chouinard, S, Paris, S, LePage, C, Nemeth, AH, Merritt, C, Cox, C, Astbury, T, Murphy, S, Ahmed, A, St Marie, P, Berila, RA, Kubu, C, Segro, V, Kumar, R, Erickson, D, Schneiders, J, Frucht, S, Wasserman, P, Moskowitz, C, Scott, B, Perry-Trice, P, Wyne, S, Parida, D, Redaelli, V, Soltan, W, Robowski, P, Nowak, M, Schinwelski, M, Dziadkiewicz, A, Andrews, T, Ruddy, D, Dougherty, A, Boelmans, K, Schmalfeld, J, Muenchau, A, Zittel, S, Mallonee, W, Suter, G, Tan, J, Seeberger, L, Harris, J, Champion, J, Wojcieszek, J, Belden, J, Price, K, Hughes-Gay, M, Sprehn, G, Squitieri, F, Martino, T, De Gregorio, F, De Nicola, A, Elifani, F, Rosenblatt, A, Yoritomo, N, Margolis, R, Nichols, P, Palhagen, SE, Hoglund, AV, Paucar, M, Reza-Soltani, TW, Beister, A, Raab, T, Kieni, J, Schrenk, C, Banaszkiewicz, K, Misztela, J, Wojcik, M, Szczygiel, E, Golosz, M, Rudzinska, M, Roos, RAC, van den Bogaard, SJA, Bos, R, Booij, SJ, Hyson, C, Megens, J, Makaji, E, Jenkins, M, Hersch, S, Maya, S, Dresser, C, Rosas, D, Blindauer, K, Schindler, C, Hung, S, McNees, AA, Tabrizi, S, Novak, M, Say, M, Patel, A, Panegyres, P, Lewis, N, Jukich, S, Faull, C, Hjermind, LE, Jakobsen, O, Vogel, A, Nielsen, TR, Nielsen, JE, Kostyk, S, Seward, A, Agrawal, P, Kraakevik, J, Hogarth, P, Wilson, A, Lear, J, Kraus, PH, Saft, C, Steiner, T, Hoffmann, R, Stamm, C, Schollhammer, J, Uhl, I, Kaminski, B, O'Donovan, K, Quarrell, O, Nevitt, L, Kipps, C, Hare, A, Gunner, K, Hayward, E, Nance, M, Hamerlinck, J, Wielinski, C, Yastrubetskaya, O, Chiu, E, Chua, P, Mannaa, B, de Tommaso, M, Serpino, C, Cormio, C, Sciruicchio, V, De Michele, G, Di Maio, L, Russo, CV, Sacca, F, Salvatore, E, Tucci, T, Wolz, M, Klingelhoefer, L, Wolz, A, Schmidt, S, Storch, A, Spruth, E, Thiel, S, Neumann, B, Gelderblom, H, Priller, J, Sass, C, Probst, D, Werner, C, Leavitt, BR, Coleman, A, Raymond, L, Wheelock, V, Tempkin, T, Baynes, K, Hermanowicz, N, Niswonger, S, Haske-Palomino, M, Bordelon, Y, Gratiano, A, Johnson, A, Corey-Bloom, J, Goldstein, J, Peavy, G, Geschwind, M, Gooblar, J, Barton, C, Fernandez, H, Rodriguez, R, Suelter, M, Daniels, M, Romrell, J, Swartz, C, Beglinger, L, Epping, E, Waterman, E, Smith, MM, Dubinsky, R, Dubinsky, H, Gray, C, Craufurd, D, Howard, E, Jones, M, Murphy, H, Anderson, K, Nickerson, C, De Santo, J, Rigaud, T, Zappala, N, Robottom, B, Singer, C, Quesada, M, Rodriguez-Spengler, K, Cardenache, RH, Reilmann, R, Bohlen, S, Hoelzner, E-M, Colcher, A, Maccarone, H, Altin, L, Siderowf, A, Greenamyre, TJ, Lucarelli, N, Ivanco, L, Marshall, F, Hickey, C, Deuel, L, Biglan, K, Sussmuth, SD, Orth, M, Trautmann, S, Eschenbach, C, Samii, A, Macaraeg, A, Zielonka, D, Ciesielska, A, Marcinkowski, JT, Sempolowicz, J, Karaskiewicz, H, O'Neill, C, Haq, I, Witkowski, G, Antczak, J, Rola, R, Richter, P, Rakowicz, M, Jachinska, K, Criswell, S, Deppen, P, Wharton, K, Mahant, N, McCusker, E, Griffith, J, Loy, C, Stewart, L, Fisher, D, Holt, D, Orme, C, Watts, A, Weber, J, White, K, Hauser, RA, Albin, R, Coffey, C, Fischer, W, Miyasaki, J, Investigators, HORIZON, HORIZON Investigators of the Huntington Disease Study, Group, European Huntington's Disease, Network, Salvatore, Elena, DE MICHELE, Giuseppe, and Sacca', Francesco
Subjects: Male, medicine.medical_specialty, Indoles, Placebo-controlled study, Comorbidity, Placebo, Severity of Illness Index, law.invention, Placebos, Randomized controlled trial, Double-Blind Method, law, Internal medicine, medicine, Dementia, Humans, Donepezil, Adverse effect, Rivastigmine, Psychiatric Status Rating Scales, business.industry, Australia, Latrepirdine, Middle Aged, medicine.disease, Huntington Disease, Treatment Outcome, North America, Physical therapy, Female, Neurology (clinical), business, medicine.drug
Abstract: BACKGROUND Latrepirdine is an orally administered experimental small molecule that was initially developed as an antihistamine and subsequently was shown to stabilize mitochondrial membranes and function, which might be impaired in Huntington disease. OBJECTIVE To determine the effect of latrepirdine on cognition and global function in patients with mild to moderate Huntington disease. DESIGN Randomized, double-blind, placebo-controlled study. SETTING Sixty-four research centers in Australia, Europe, and North America. PATIENTS Four hundred three patients with mild to moderate Huntington disease and baseline cognitive impairment (Mini-Mental State Examination score, 10-26). INTERVENTION Latrepirdine (20 mg) vs matching placebo administered orally 3 times daily for 26 weeks. MAIN OUTCOME MEASURES The co-primary outcome measures were cognition as measured by the change in Mini-Mental State Examination score from baseline to week 26 and global function at week 26 as measured by the Clinician Interview-Based Impression of Change, plus carer interview, which ranges from 1 (marked improvement) to 7 (marked worsening). Secondary efficacy outcome measures included behavior, daily function, motor function, and safety. RESULTS The mean change in Mini-Mental State Examination score among participants randomized to latrepirdine (1.5-point improvement) did not differ significantly from that among participants randomized to placebo (1.3-point improvement) (P = .39). Similarly, the distribution of the Clinician Interview-Based Impression of Change, plus carer interview did not differ significantly among those randomized to latrepirdine compared with placebo (P = .84). No significant treatment effects were detected on the secondary efficacy outcome measures. The incidence of adverse events was similar between those randomized to latrepirdine (68.5%) and placebo (68.0%). CONCLUSION In patients with mild to moderate Huntington disease and cognitive impairment, treatment with latrepirdine for 6 months was safe and well tolerated but did not improve cognition or global function relative to placebo. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT00920946.
Published: 2013

14. β-Defensin Genomic Copy Number Does Not Influence the Age of Onset in Huntington's Disease

Author: Vittori, A, Orth, M, Roos, Ra, Outeiro, Tf, Giorgini, F, Hollox, Ej, Bachoud-Levi, Ac, Bentivoglio, Ar, Biunno, I, Bonelli, Rm, Burgunder, Jm, Dunnett, Sb, Ferreira, Jj, Handley, Oj, Heiberg, A, Illmann, T, Landwehrmeyer, Gb, Levey, J, Martinez-Jaurrieta, Md, Nielsen, Je, Pro Koivisto, S, Piiiviirinta, M, Sebastian, Ar, Tabrizi, Sj, Vandenberghe, W, Verellen-Dumoulin, C, Zaremba, J, Uhrova, T, Wahlstrom, J, Barth, K, Correia-Guedes, L, Finisterra, Am, Bascuiiana Garde, M, Betz, S, Bos, R, Ecker, D, Held, C, Koppers, K, Laura, M, Descals, Am, Mestre, T, Monza, D, Townhill, J, Padieu, H, Paterski, L, Peppa, N, Rialland, A, Røren, N, Sasinkova, P, Trigo Cubillo, P, van Walsem, M, Witjes-Ane, Mn, Yudina, E, Zielonka, D, Zielonka, E, Zinzi, P, Herranhof, B, Hod, A, Kapfhammer, Hp, Koppitz, M, Magnet, M, Otti, D, Painold, A, Reisinge, K, Scheib, M, Hecht, K, Lilek, S, Muller, N, Schoggl, H, Ullah, J, Ribal, P, Klempff, J, Majerova, V, Roth, J, Hjermind, Le, Jakobsen, O, Vinthev-Jensen, T, Larsen, Iu, Stokholm, J, Hiivola, H, Martikainen, K, Tuuha, K, Santala, M, Milkereit, E, Kosinski, Cm, Probst, D, Reetz, K, Sass, C, Schiefer, J, Schlangen, C, Werner, Cj, Andrich, J, Ellrichmann, G, Hoffmann, R, Kaminski, B, Saft, C, Stamm, C, Lange, H, Lohle, M, Schmidt, S, Storch, A, Wolz, A, Wolz, M, Capetian, P, Lambeck, J, Zucker, B, Boelmans, K, Ganos, C, Hidding, U, Lewerenz, J, Miinchau, A, Schmalfeld, J, Stubbe, L, Zittel, S, Heinicke, W, Ribbat, M, Longinus, B, Miihlau, M, Peinemann, A, Stiidtler, M, Weindl, A, Winkelmann, J, Ziegler, C, Bechtel, N, Beckmann, H, Bohlen, S, Holzner, E, Reilmann, R, Rohm, S, Rumpf, S, Schepers, S, Dose, M, Leythaeuser, G, Marquard, R, Raab, T, Schrenk, C, Schuierer, M, Buck, A, Eschenbach, C, Landwehrmeyer, B, Lezius, F, Nepper, S, Niess, A, Schwenk, D, Siissmuth, S, Trautmann, S, Weydt, P, Cormio, C, de Tommaso, M, Sciruicchio, V, Serpino, C, Ghelli, E, Ginestroni, A, Bertini, E, Massaro, F, Mechi, C, Paganini, M, Piacentini, S, Pradella, S, Romoli, Am, Sorbi, S, Abbruzzese, G, Ferrandes, Mb, Di Maria, E, Ferrandes, G, Mandich, P, Marchese, R, Di Donato, S, Gellera, C, Genitrini, S, Mariotti, C, Nanetti, L, Soliveri, P, Tomasello, C, De Michele, G, Dimaio, L, Massarelli, M, Rinaldi, C, Roca, A, Rossi, F, Russo, Cv, Salvatore, E, Sorrentino, P, Tucci, T, De Nicola, A, Elifani, F, Petrollini, M, Martino, T, Lovo, F, Squitieri, F, Catalli, C, Di Giacopo, R, Fasano, A, Frontali, M, Guidubaldi, A, Ialongo, T, Jacopini, G, Loria, G, Piano, C, Piccininni, C, Quaranta, D, Romano, S, Soleti, F, Spadaro, M, van Hout MS, van Vugt JP, de Weert, A, Bolwijn, Jj, Neurologie, P, Dekker, M, Leenders, Kl, van Oostrom JC, Dumas, Em, Jurgens, Ck, van den Bogaard SJ, 't Hart EP, Kremer, B, Verstappen, Cc, van Walsem MR, Frich, J, Aaserud, O, Wehus, R, Bjørgo, K, Fannemel, M, Gørvell, P, Lorentzen, E, Koivisto, Sp, Retterstøl, L, Stokke, B, Bjørnevoll, I, Sando, Sb, Dziadkiewicz, A, Nowak, M, Robowski, P, Sitek, E, Slawek, J, Soltan, W, Szinwelski, M, Blaszczyk, M, Boczarska-Jedynak, M, Ciach-Wysocka, E, Gorzkowska, A, Jasinska-Myga, B, Opala, G, Klodowska, G, Stompel, D, Banaszkiewicz, K, Boewiriska, D, Bojakowska-Jaremek, K, Neurologii, A, Dec, M, Krawczyk, M, Rudziriska, M, Szczudlik, A, Szczygiel, E, Wasielewska, A, Wojcik, M, Bryl, A, Ciesielska, A, Klimberg, A, Marcinkowski, J, Samara, H, Sempolowicz, J, Janik, P, Kalbarczyk, A, Kwiecinski, H, Jamrozik, Z, Antczak, J, Jachinska, K, Krysa, W, Rakowicz, M, Richter, P, Rola, R, Ryglewicz, D, Sienkiewicz-Jarosz, H, Sulek, A, Witkowski, G, Zdzienicka, E, Zieora-Jakutowicz, K, Coelho, M, Mendes, T, Valadas, A, Andrade, C, Joao, Ps, Gago, M, Garrett, C, Guerra, Mr, Solis, P, Herrera, Cd, Garcia, Pm, Cubo, E, Mariscal, N, Sanchez, J, Barrero, Fj, Alonso-Frech, F, Perez, Mr, Fenollar, M, Garda, R, Rivera, Sv, Villanueva, C, Alegre, J, Bascuiiana, M, Ventura, Mf, Ribas, Gg, Moreno, Jl, Cubillo, Pt, Rufz, Pj, Frech, Fa, Dfaz, J, Guerrero, R, Artiga, Mj, Sanchez, V, Alcaraz, Lf, de Ia Arrixaca, V, Manzanares, S, Perea, Mf, Reinante, G, Arrixaca, Ia, Torres, Mm, Moreau, Lv, Barbera, Ma, Guia, Db, Hernanz, Lc, Catena, Jl, Sebastian, R, Ferrer, Pq, Carruesco, Gt, Bas, J, Busquets, N, Calopa, M, Buongiorno, Mt, Munoz, E, Elorza, Md, Lopez, Cd, Terol, Ds, Robert, Mf, Rufz, Bg, Casado, Ag, Martinez, Ih, Viladrich, Cm, Pons, R, Roca, E, Llesoy, Jr, Idiago, Jm, Vergara, Mr, Garcia, Ss, Riballo, Av, Hoglund, A, Palhagen, Se, Paucar, M, Sandstrom, B, Svenningsson, P, Reza-Soltani, Tw, Kaelin, A, Romero, I, Schupbach, M, Stebler, Y, Zaugg, Sw, Akhtar, S, Crooks, J, Curtis, A, de Souza, J, Rickards, H, Wright, J, Barker, Ra, Di Pietro, A, Fisher, K, Goodman, Ao, Hill, S, Kershaw, A, Mason, S, O'Keefe, D, Swain, R, Guzman, Nv, Busse, M, Butcher, C, Clenaghan, C, Dunnett, S, Fullam, R, Jones, L, Jones, U, Khalil, H, Minster, S, Owen, M, Hunt, S, Price, K, Rosser, A, Edwards, M, Ho, C, Mcgill, M, Pearson, P, Porteous, M, Brockie, P, Foster, J, Johns, N, Mckenzie, S, Rothery, J, Thomas, G, Yates, S, Burrows, L, Chu, C, Fletcher, A, Gallantrae, D, Harding, A, Hamer, S, Kraus, A, Laver, F, Longthorpe, M, Markova, I, Raman, A, Silva, M, Thomson, A, Wild, S, Yardumian, P, Hobson, E, Jamieson, S, Musgrave, H, Rowett, L, Toscano, J, Clayton, C, Dipple, H, Middleton, J, Patino, D, Andrews, T, Dougherty, A, Kavalier, F, Golding, C, Laing, H, Lashwood, A, Robertson, D, Ruddy, D, Whaite, A, Santhouse, A, Bruno, S, Doherty, K, Lahiri, N, Novak, M, Patel, A, Rosser, E, Tabrizi, S, Taylor, R, Warner, T, Wild, E, Arran, N, Bek, J, Callaghan, J, Craufurd, D, Howard, L, Hare, M, Huson, S, Johnson, L, Jones, M, Murphy, H, Oughton, E, Partington-Janes, L, Rogers, D, Snowden, J, Sollom, A, Stopford, C, Thompson, J, Trender-Gerhard, I., Vittori, Angelica, Orth, Michael, Roos, Raymund A C, Outeiro, Tiago F, Giorgini, F, Russo, Cinzia Valeria, Flaviano, and Hollox, Edward J
Subjects: Adult, Male, Age of Onset, DNA Copy Number Variations, Female, Genotype, Humans, Huntington Disease, Middle Aged, beta-Defensins, Disease, Biology, Genetic modifier, Article, Pathogenesis, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, Huntington's disease, medicine, Copy-number variation, Defensin, 030304 developmental biology, Genetics, 0303 health sciences, copy number variation, inflammation, Acquired immune system, medicine.disease, 3. Good health, Beta defensin, Neurology (clinical), Age of onset, 030217 neurology & neurosurgery
Abstract: Background: Huntington's disease (HD) is an autosomal dominant neurodegenerative disorder caused by the abnormal expansion of a CAG triplet repeat tract in the huntingtin gene. While the length of this CAG expansion is the major determinant of the age of onset (AO), other genetic factors have also been shown to play a modulatory role. Recent evidence suggests that neuroinflammations is a pivotal factor in the pathogenesis of HD, and that targeting this process may have important therapeutic ramifications. The human β-defensin 2 (hBD2)- encoded by DEFB4- is an antimicrobial peptide that exhibits inducible expression in astrocytes during inflammation and is an important regulator of innate and adaptive immune response. Therefore, DEFB4 may contribute to the neuroinflammatory processes observed in HD. Objective: In this study we tested the hypothesis that copy number variation (CNV) of the β-defensin region, including DEFB4, modifies the AO in HD. Methods and results: We genotyped β-defensin CNV in 490 HD individuals using the paralogue ratio test and found no association between β-defensin CNV and onset of HD. Conclusions: We conclude that it is unlikely that DEFB4 plays a role in HD pathogenesis.
Published: 2013

15. Discrepancies in reporting the CAG repeat lengths for Huntington's disease

Author: Quarrell, Ow, Handley, O, O'Donovan, K, Dumoulin, C, Ramos Arroyo, M, Biunno, I, Bauer, P, Kline, M, Landwehrmeyer, Gb, Barth, K, Correia Guedes, L, Maria Finisterra, A, Bascuñana Garde, M, Bos, R, Ecker, D, Held, C, Koppers, K, Laurà, M, Martínez Descals, A, Mclean, T, Mestre, T, Minster, S, Monza, D, Townhill, J, Orth, M, Padieu, H, Paterski, L, Peppa, N, Koivisto, Sp, Rialland, A, Røren, N, Šašinková, P, Cubillo, Pt, van Walsem MR, Witjes Ané MN, Yudina, E, Zielonka, D, Zielonka, E, Zinzi, P, Bachoud Lévi AC, Bentivoglio, Ar, Bonelli, R, Burgunder, Jm, Dunnett, Sb, Ferreira, Jj, Handley, Oj, Heiberg, A, Illmann, T, Levey, J, Nielsen, Je, Päivärinta, M, Roos, Ra, Rojo Sebastián, A, Tabrizi, Sj, Vandenberghe, W, Verellen Dumoulin, C, Zaremba, J, Uhrova, T, Wahlström, J, Bonelli, Rm, Herranhof, B, Holl, A, Kapfhammer, Hp, Koppitz, M, Magnet, M, Otti, D, Painold, A, Reisinger, K, Scheibl, M, Hecht, K, Lilek, S, Müller, N, Schöggl, H, Ullah, J, Brugger, F, Hepperger, C, Hotter, A, Mahlknecht, P, Nocker, M, Seppi, K, Wenning, G, Buratti, L, Hametner, Em, Holas, C, Hussl, A, Mair, K, Poewe, W, Wolf, E, Zangerl, A, Braunwarth, Em, Ribaï, P, Flamez, A, Morez, V, de Raedt, S, Boogaerts, A, van Reijen, D, Klempíř, J, Kucharík, M, Roth, J, Hjermind, Le, Jakobsen, O, Stokholm, J, Hasholt, L, Nørremølle, A, Sørensen, Sa, Hiivola, H, Martikainen, K, Tuuha, K, Peippo, M, Sipponen, M, Kosinski, Cm, Milkereit, E, Probst, D, Sass, C, Schiefer, J, Schlangen, C, Werner, Cj, Gelderblom, H, Priller, J, Prüss, H, Spruth, Ej, Andrich, J, Hoffmann, R, Kraus, Ph, Muth, S, Prehn, C, Saft, C, Salmen, S, Stamm, C, Steiner, T, Strassburger, K, Lange, H, Friedrich, A, Hunger, U, Löhle, M, Schmidt, S, Storch, A, Wolz, A, Wolz, M, Lambeck, J, Zucker, B, Boelmans, K, Ganos, C, Hidding, U, Lewerenz, J, Münchau, A, Schmalfeld, J, Stubbe, L, Zittel, S, Heinicke, W, Longinus, B, Uni, M, Bürk, K, Möller, Jc, Rissling, I, Peinemann, A, Städtler, M, Weindl, A, Bechtel, N, Beckmann, H, Bohlen, S, Hölzner, E, Reilmann, R, Rohm, S, Rumpf, S, Schepers, S, Beister, A, Dose, M, Hammer, K, Kieni, J, Leythaeuser, G, Marquard, R, Raab, T, Richter, S, Selimbegovic Turkovic, A, Schrenk, C, Schuierer, M, Wiedemann, A, Buck, A, Connemann, J, Eschenbach, C, Landwehrmeyer, B, Lezius, F, Nepper, S, Niess, A, Süssmuth, S, Trautmann, S, Weydt, P, Cormio, C, Difruscolo, O, Sciruicchio, V, Serpino, C, de Tommaso, M, Capellari, S, Cortelli, P, Gallassi, R, Poda, R, Rizzo, G, Scaglione, C, Bertini, E, Ghelli, E, Ginestroni, A, Massaro, F, Mechi, C, Paganini, M, Piacentini, S, Pradella, S, Romoli, Am, Sorbi, S, Abbruzzese, G, Bandettini di Poggio, M, Di Maria, E, Ferrandes, G, Mandich, P, Marchese, R, Albanese, A, Di Bella, D, Di Donato, S, Gellera, C, Genitrini, S, Mariotti, C, Nanetti, L, Paridi, D, Soliveri, P, Tomasello, C, De Michele, G, Di Maio, L, Rinaldi, C, Valeria Russo, C, Salvatore, E, Tucci, T, Cannella, M, Codella, V, De Gregorio, F, De Nicola, N, Martino, T, Simonelli, M, Squitieri, F, Catalli, C, Di Giacopo, R, Fasano, A, Frontali, M, Guidubaldi, A, Ialongo, T, Jacopini, G, Loria, G, Modoni, A, Piano, C, Piccininni, C, Quaranta, D, Romano, Silvia, Soleti, F, Spadaro, M, van Hout MS, van Vugt JP, Marit de Weert, A, Bolwijn, Jj, Dekker, M, Leenders, Kl, van Oostrom JC, Dumas, Em, Jurgens, Ck, van den Bogaard SJ, 't Hart EP, Kremer, B, Verstappen, Cc, Aaserud, O, Wehus, R, Bjørgo, K, Fannemel, M, Gørvell, P, Retterstøl, L, Overland, T, Stokke, B, Bjørnevoll, I, Sando, Sb, Sitek, E, Slawek, J, Soltan, W, Boczarska Jedynak, M, Jasinska Myga, B, Opala, G, Kodowska Duda, G, Banaszkiewicz, K, Szczudlik, A, Rudziñska, M, Wójcik, M, Dec, M, Krawczyk, M, Bryl, A, Ciesielska, A, Klimberg, A, Marcinkowski, J, Sempoowicz, J, Samara, H, Janik, P, Kalbarczyk, A, Kwiecinski, H, Jamrozik, Z, Antczak, J, Jachinska, K, Rakowicz, M, Richter, P, Ryglewicz, D, Witkowski, G, Zdzienicka, E, Suek, A, Krysa, W, Guedes, L, Coelho, M, Mendes, T, Valadas, A, Cavaco, S, Damásio, J, Magalhães, M, Gago, M, Garrett, C, Guerra, Mr, Barrero, F, Morales, B, Cubo, E, Mariscal, N, Sánchez, J, Alonso Frech, F, Rabasa Perez, M, Fenollar, M, García, R, Quiroga, Pp, Vázquez Rivera, S, Villanueva, C, Bascuñana, M, Fatás Ventura, M, García Ribas, G, García de Yébenes, J, López Sendón Moreno JL, García Ruíz PJ, José Saiz Artiga, M, Sánchez, V, Noguera Perea, F, Lorenza, F, Torres, Mm, Reinante, G, Vivancos Moreau, L, Barbera, Ma, Badenes Guia, D, Hernanz, Lc, Catena, Jl, Ferrer, Pq, Tome Carruesco, G, Bas, J, Busquets, N, Calopa, M, Dalmau Elorza, M, Díez, C, López, A, Durán, S, Terol, S, Floriach Robert, M, Garzón Ruíz, B, González Casado, A, Haro Martínez, I, Viladrich, Cm, Càrdenas R, Pons i., Roca, E, Llesoy, Jr, Ruiz Idiago JM, Ruíz Vergara, M, Soriano García, S, Villa Riballo, A, Gorospe, A, Legarda, I, Arques, Pn, Torres Rodríguez MJ, Vives, B, Gaston, I, Bosca, M, Burguera, Ja, Garcia, Ac, Pålhagen, Se, Paucar, M, Svenningsson, P, Walldén Reza Soltani, T, Höglund, A, Sandström, B, Høsterey Ugander, U, Fredlund, G, Constantinescu, R, Neleborn Lingefjärd, L, Tedroff, J, Esmaeilzadeh, M, Winnberg, E, Burgunder, Y, Stebler, Y, Kaelin, A, Romero, I, Schüpbach, M, Zaugg, Sw, Jack, R, Matheson, K, Miedzybrodzka, Z, Rae, D, Simpson, S, Summers, F, Ure, A, Crooks, J, Curtis, A, de Souza, J, Rickards, H, Wright, J, Barker, Ra, Di Pietro, A, Fisher, K, Goodman, A, Hill, S, Kershaw, A, Mason, S, Paterson, N, Raymond, L, Bisson, J, Busse, M, Clenaghan, C, Ellison Rose, L, Hunt, S, Price, K, Rosser, A, Edwards, M, Hughes, T, Mcgill, M, Pearson, P, Porteous, M, Smith, P, Zeman, A, Causley, A, Harrower, T, Howcroft, D, Lambord, N, Rankin, J, Brockie, P, Foster, J, Johns, N, Mckenzie, S, Rothery, J, Thomas, G, Yates, S, Miller, J, Ritchie, S, Burrows, L, Fletcher, A, Harding, A, Laver, F, Silva, M, Thomson, A, Barnes, K, Chu, C, Hobson, E, Jamieson, S, Markova, I, Thomson, J, Toscano, J, Wild, S, Yardumian, P, Bourne, C, Clayton, C, Dipple, H, Clapton, J, Grant, J, Gross, D, Hallam, C, Middleton, J, Murch, A, Patino, D, Andrews, T, Dougherty, A, Kavalier, F, Golding, C, Lashwood, A, Robertson, D, Ruddy, D, Whaite, A, Patton, M, Peterson, M, Rose, S, Bruno, S, Chu, E, Doherty, K, Henley, S, Lahiri, N, Novak, M, Patel, A, Read, J, Rosser, E, Say, M, Tabrizi, S, Taylor, R, Warner, T, Wild, E, Arran, N, Callaghan, J, Craufurd, D, Fullam, R, Howard, L, Huson, S, Oughton, E, Partington Jones, L, Snowden, J, Sollom, A, Stopford, C, Thompson, J, Trender Gerhad, I, Verstraelen, N, Westmoreland, L, Nemeth, Ah, Suida, G, Harrison, D, Hughes, M, Parkinson, A, Soltysiak, B, Bandmann, O, Bradbury, A, Gill, P, Fairtlough, H, Fillingham, K, Foustanos, I, Tidswell, K., Kaelin, André, Quarrel O.W., Handley O., O'Donovan K., Dumoulin C., Ramos-Arroyo M., Biunno I., Bauer P., Kline M., Capellari S., Cortelli P., Gallassi R., Landwehrmeyer G.B., European Huntington's Disease Network., Neurology, Clinical sciences, Neuroprotection & Neuromodulation, Quarrell, Ow, Handley, O, O'Donovan, K, Dumoulin, C, Ramos Arroyo, M, Biunno, I, Bauer, P, Kline, M, Landwehrmeyer, Gb, European Huntington's Disease, Network, European Huntington's Disease, N. e. t. w. o. r. k., Rinaldi, Carlo, Salvatore, Elena, and DE MICHELE, Giuseppe
Subjects: medicine.medical_specialty, Concordance, International Cooperation, Diagnostic Errors/statistics & numerical data, Nerve Tissue Proteins, Guidelines as Topic, Bioinformatics, Sensitivity and Specificity, Article, Huntingtin Gene, Huntington's disease, Trinucleotide Repeats, Internal medicine, External quality assessment, Genetics, medicine, Humans, Nerve Tissue Proteins/genetics, Diagnostic laboratory, Genetic Testing, Genetic Testing/methods/standards, Allele, Diagnostic Errors, standard reference material, Genetics (clinical), Alleles, Huntingtin Protein, ddc:618, business.industry, international cooperation, Nuclear Proteins, Reproducibility of Results, Reference Standards, medicine.disease, CAG repeat length, Nuclear Proteins/genetics, Huntington Disease, Huntington Disease/diagnosis, Mutation, Medical genetics, reproducibility of results, mutation, business, Trinucleotide repeat expansion, Huntington Disease/diagnosis/genetics, Genetic Testing/methods
Abstract: Huntington's disease results from a CAG repeat expansion within the Huntingtin gene; this is measured routinely in diagnostic laboratories. The European Huntington's Disease Network REGISTRY project centrally measures CAG repeat lengths on fresh samples; these were compared with the original results from 121 laboratories across 15 countries. We report on 1326 duplicate results; a discrepancy in reporting the upper allele occurred in 51% of cases, this reduced to 13.3% and 9.7% when we applied acceptable measurement errors proposed by the American College of Medical Genetics and the Draft European Best Practice Guidelines, respectively. Duplicate results were available for 1250 lower alleles; discrepancies occurred in 40% of cases. Clinically significant discrepancies occurred in 4.0% of cases with a potential unexplained misdiagnosis rate of 0.3%. There was considerable variation in the discrepancy rate among 10 of the countries participating in this study. Out of 1326 samples, 348 were re-analysed by an accredited diagnostic laboratory, based in Germany, with concordance rates of 93% and 94% for the upper and lower alleles, respectively. This became 100% if the acceptable measurement errors were applied. The central laboratory correctly reported allele sizes for six standard reference samples, blind to the known result. Our study differs from external quality assessment (EQA) schemes in that these are duplicate results obtained from a large sample of patients across the whole diagnostic range. We strongly recommend that laboratories state an error rate for their measurement on the report, participate in EQA schemes and use reference materials regularly to adjust their own internal standards.
Published: 2012

16. Frontotemporal dementia and its subtypes: A genome-wide association study

Author: Ferrari, R, Hernandez, DG, Nalls, MA, Rohrer, JD, Ramasamy, A, Kwok, JBJ, Dobson-Stone, C, Brooks William S., BS, Schofield, PR, Halliday, GM, Hodges, JR, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, NJ, Benussi, L, Binetti, G, Ghidoni, R, Forloni, G, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Waldö, ML, Nilsson, K, Nilsson, C, Mackenzie, IRA, Hsiung, GYR, Mann, DMA, Grafman, J, Morris, CM, Attems, J, Griffiths, TD, McKeith, IG, Thomas, AJ, Pietrini, P, Huey, ED, Wassermann, EM, Baborie, A, Jaros, E, Tierney, MC, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, R, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, St George-Hyslop, P, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, JB, Schlachetzki, JCM, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin, VM, Grossman, M, Trojanowski, JQ, Van der Zee, J, Deschamps, W, Van Langenhove, T, Cruts, M, Van Broeckhoven, C, Cappa, SF, Le Ber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, JE, Hjermind, LE, Riemenschneider, M, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, MN, Ferrari, R, Hernandez, DG, Nalls, MA, Rohrer, JD, Ramasamy, A, Kwok, JBJ, Dobson-Stone, C, Brooks William S., BS, Schofield, PR, Halliday, GM, Hodges, JR, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, NJ, Benussi, L, Binetti, G, Ghidoni, R, Forloni, G, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarimón, J, Lleó, A, Blesa, R, Waldö, ML, Nilsson, K, Nilsson, C, Mackenzie, IRA, Hsiung, GYR, Mann, DMA, Grafman, J, Morris, CM, Attems, J, Griffiths, TD, McKeith, IG, Thomas, AJ, Pietrini, P, Huey, ED, Wassermann, EM, Baborie, A, Jaros, E, Tierney, MC, Pastor, P, Razquin, C, Ortega-Cubero, S, Alonso, E, Perneczky, R, Diehl-Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, St George-Hyslop, P, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, JB, Schlachetzki, JCM, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin, VM, Grossman, M, Trojanowski, JQ, Van der Zee, J, Deschamps, W, Van Langenhove, T, Cruts, M, Van Broeckhoven, C, Cappa, SF, Le Ber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, JE, Hjermind, LE, Riemenschneider, M, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, and Rossor, MN
Abstract: Background: Frontotemporal dementia (FTD) is a complex disorder characterised by a broad range of clinical manifestations, differential pathological signatures, and genetic variability. Mutations in three genes-MAPT, GRN, and C9orf72-have been associated with FTD. We sought to identify novel genetic risk loci associated with the disorder. Methods: We did a two-stage genome-wide association study on clinical FTD, analysing samples from 3526 patients with FTD and 9402 healthy controls. To reduce genetic heterogeneity, all participants were of European ancestry. In the discovery phase (samples from 2154 patients with FTD and 4308 controls), we did separate association analyses for each FTD subtype (behavioural variant FTD, semantic dementia, progressive non-fluent aphasia, and FTD overlapping with motor neuron disease [FTD-MND]), followed by a meta-analysis of the entire dataset. We carried forward replication of the novel suggestive loci in an independent sample series (samples from 1372 patients and 5094 controls) and then did joint phase and brain expression and methylation quantitative trait loci analyses for the associated (p<5 × 10-8) single-nucleotide polymorphisms. Findings: We identified novel associations exceeding the genome-wide significance threshold (p<5 × 10-8). Combined (joint) analyses of discovery and replication phases showed genome-wide significant association at 6p21.3, HLA locus (immune system), for rs9268877 (p=1·05 × 10-8; odds ratio=1·204 [95% CI 1·11-1·30]), rs9268856 (p=5·51 × 10-9; 0·809 [0·76-0·86]) and rs1980493 (p value=1·57 × 10-8, 0·775 [0·69-0·86]) in the entire cohort. We also identified a potential novel locus at 11q14, encompassing RAB38/CTSC (the transcripts of which are related to lysosomal biology), for the behavioural FTD subtype for which joint analyses showed suggestive association for rs302668 (p=2·44 × 10-7; 0·814 [0·71-0·92]). Analysis of expression and methylation quantitative trait loci data suggested that these loci migh
Published: 2014

17. Corticobasal and ataxia syndromes widen the spectrum ofC9ORF72hexanucleotide expansion disease

Author: Lindquist, SG, primary, Duno, M, additional, Batbayli, M, additional, Puschmann, A, additional, Braendgaard, H, additional, Mardosiene, S, additional, Svenstrup, K, additional, Pinborg, LH, additional, Vestergaard, K, additional, Hjermind, LE, additional, Stokholm, J, additional, Andersen, BB, additional, Johannsen, P, additional, and Nielsen, JE, additional
Published: 2013
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18. Novel mutation in ATP13A2 widens the spectrum of Kufor-Rakeb syndrome (PARK9)

Author: Eiberg, H, primary, Hansen, L, additional, Korbo, L, additional, Nielsen, IM, additional, Svenstrup, K, additional, Bech, S, additional, Pinborg, LH, additional, Friberg, L, additional, Hjermind, LE, additional, Olsen, OR, additional, and Nielsen, JE, additional
Published: 2011
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19. Hereditary dystonia or parkinson – a patient with both – and problems concerning diagnostic, treatment and genetic counselling

Author: Hjermind, LE, primary, Johannsen, LG, additional, Blau, N, additional, Wevers, RA, additional, Lucking, CB, additional, Hertz, JM, additional, Friberg, L, additional, Regeur, L, additional, Nielsen, JE, additional, and Sørensen, SA, additional
Published: 2005
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20. Amyloid-related biomarkers and axonal damage proteins in parkinsonian syndromes.

Author: Bech S, Hjermind LE, Salvesen L, Nielsen JE, Heegaard NH, Jørgensen HL, Rosengren L, Blennow K, Zetterberg H, and Winge K
Published: 2012

21. Hereditary spastic paraplegia caused by the PLP1 'rumpshaker mutation'.

Author: Svenstrup K, Giraud G, Boespflug-Tanguy O, Danielsen ER, Thomsen C, Rasmussen K, Law I, Vogel A, Stokholm J, Crone C, Hjermind LE, Nielsen JE, Svenstrup, Kirsten, Giraud, Geneviève, Boespflug-Tanguy, Odile, Danielsen, Else R, Thomsen, Carsten, Rasmussen, Kirsten, Law, Ian, and Vogel, Asmus
Abstract: Background: Hereditary spastic paraplegia (HSP) is a group of clinically and genetically heterogeneous neurodegenerative disorders characterised by progressive spasticity and weakness in the lower limbs. Mutations in PLP1 on the X chromosome cause spastic paraplegia type 2 (SPG2) or the allelic Pelizaeus-Merzbacher Disease (PMD). The PLP1 protein is a major myelin protein involved in stabilisation and maintenance of the myelin sheath. The function of the protein has been studied in the rumpshaker mouse, which is a model of SPG2/PMD.Objective: To characterise the phenotype of patients with the 'rumpshaker mutation.'Patients: A family with HSP caused by the 'rumpshaker mutation.'Results: The patients showed nystagmus during infancy and had early onset of HSP. They had normal cognition, and cerebral MRI showed relatively unspecific white matter abnormalities on T2 sequences without clear progression. Urinary urgency was reported among the female carriers. MRS of both patients showed increased myo-inositol in the white matter, while decreased N-acetylaspartate was found exclusively in the oldest patient. All evoked potential examinations were compatible with severe central demyelination, while no signs of peripheral demyelination or axonal degeneration were found. (18)F-FDG-PET scans were normal.Conclusion: The phenotypes of the patients reported here are the mildest described to be caused by the rumpshaker mutation and represent the mildest form among the spectrum of PLP1 related disorders. No definite symptoms in the female carriers could be ascribed to the mutation. These data suggest the pathology to be an underlying dysmyelinating disorder in combination with a central axonal degeneration. [ABSTRACT FROM AUTHOR]
Published: 2010
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22. Myoclonus-dystonia due to genomic deletions in the epsilon-sarcoglycan gene.

Author: Asmus F, Salih F, Hjermind LE, Ostergaard K, Munz M, Kühn AA, Dupont E, Kupsch A, and Gasser T
Published: 2005

23. Frontotemporal dementia and its subtypes: A genome-wide association study

Author: Yolande A.L. Pijnenburg, Wei Gu, Harro Seelaar, Robert Perneczky, Alfredo Postiglione, Ronald C. Petersen, Timothy D. Griffiths, Pau Pastor, Marc Cruts, Elise G.P. Dopper, Sabrina Pichler, Chiara Fenoglio, Patrizia Rizzu, Adeline Rollin, Maria Serpente, Peter Heutink, Sandro Sorbi, Lauren Bartley, Maria Landqvist Waldö, Luigi Ferrucci, William S. Brooks, Luisa Benussi, William W. Seeley, Maria Anfossi, Atik Baborie, Innocenzo Rainero, Rosa Capozzo, Alessandro Padovani, Stefano F. Cappa, Glenda M. Halliday, Jørgen E. Nielsen, Sara Ortega-Cubero, Vivianna M. Van Deerlin, Ekaterina Rogaeva, Mike A. Nalls, Giacomina Rossi, Alberto Lleó, Edward D. Huey, Jordi Clarimón, Simon Mead, Janine Diehl-Schmid, John Q. Trojanowski, Adaikalavan Ramasamy, Matthias Riemenschneider, John Hardy, Annibale Alessandro Puca, Cristina Razquin, Mercè Boada, Martine Vercelletto, Isabelle Le Ber, Graziella Milan, Johannes Attems, Francesca Frangipane, Jason D. Warren, Lena E. Hjermind, John R. Hodges, Gianluigi Forloni, Dennis W. Dickson, Daniela Galimberti, Elisa Rubino, Karin Nilsson, Raffaele Maletta, Christine Van Broeckhoven, Valeria Novelli, Anna Richardson, Anna Karydas, David S. Knopman, Nick C. Fox, Stuart Pickering-Brown, Carlos Cruchaga, Isabel Hernández, Livia Bernardi, Philip Scheltens, Martin N. Rossor, Julie S. Snowden, Massimo Franceschi, Rosa Rademakers, Bruce L. Miller, Alan J. Thomas, Florence Lebert, Matthew C. Baker, Jonathan D. Rohrer, Keith A. Josephs, Tim Van Langenhove, Fabrizio Tagliavini, Carol Dobson-Stone, Elizabeth Thompson, Silvia Bagnoli, Barbara Borroni, Sara Rollinson, Irene Piaceri, David M. A. Mann, Bernd Ibach, Ian G. McKeith, Agustín Ruiz, Huw R. Morris, Giancarlo Logroscino, Maura Gallo, Elena Alonso, Alexis Brice, Adrian Danek, Paolo Sorrentino, Nicoletta Smirne, Raffaele Ferrari, Panagiotis Alexopoulos, Johannes C. M. Schlachetzki, Alexander Gerhard, Manuel Mayhaus, Alexander Kurz, Amalia C. Bruni, Michael Tierney, Didier Hannequin, William Deschamps, Florence Pasquier, Joseph E. Parisi, Rafael Blesa, Elio Scarpini, Ian R. A. Mackenzie, Peter R. Schofield, Giuliano Binetti, Evelyn Jaros, Julie van der Zee, John Collinge, Maria Elena Conidi, Howard J. Rosen, Caroline Graff, Christer Nilsson, Huei-Hsin Chiang, Nigel J. Cairns, Jordan Grafman, Eric M. Wassermann, Parastoo Momeni, Maria Grazia Spillantini, Ging-Yuek Robin Hsiung, Andrew B. Singleton, Chiara Cupidi, James Uphill, Dimitrios Kapogiannis, Bradley F. Boeve, Christopher Morris, Vincent Deramecourt, Giorgio Giaccone, James B. Rowe, Murray Grossman, Benedetta Nacmias, Roberta Ghidoni, Véronique Golfier, Dena G. Hernandez, Lorenzo Pinessi, Neill R. Graff-Radford, John C. van Swieten, Pietro Pietrini, Gilles Gasparoni, Peter St George-Hyslop, Mark Kristiansen, Eric Haan, Olivier Piguet, John B.J. Kwok, Human genetics, Neurology, NCA - neurodegeneration, Surgery, Clinical Genetics, Erasmus MC other, Ferrari, R, Hernandez, Dg, Nalls, Ma, Rohrer, Jd, Ramasamy, A, Kwok, Jb, Dobson Stone, C, Brooks, W, Schofield, Pr, Halliday, Gm, Hodges, Jr, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hern?ndez, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, Nj, Benussi, L, Binetti, G, Ghidoni, R, Forloni, G, Galimberti, D, Fenoglio, C, Serpente, M, Scarpini, E, Clarim?n, J, Lle?, A, Blesa, R, Wald?, Ml, Nilsson, K, Nilsson, C, Mackenzie, Ir, Hsiung, Gy, Mann, Dm, Grafman, J, Morris, Cm, Attems, J, Griffiths, Td, Mckeith, Ig, Thomas, Aj, Pietrini, P, Huey, Ed, Wassermann, Em, Baborie, A, Jaros, E, Tierney, Mc, Pastor, P, Razquin, C, Ortega Cubero, S, Alonso, E, Perneczky, R, Diehl Schmid, J, Alexopoulos, P, Kurz, A, Rainero, I, Rubino, E, Pinessi, L, Rogaeva, E, St George Hyslop, P, Rossi, G, Tagliavini, F, Giaccone, G, Rowe, Jb, Schlachetzki, Jc, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin, Vm, Grossman, M, Trojanowski, Jq, van der Zee, J, Deschamps, W, Van Langenhove, T, Cruts, M, Van Broeckhoven, C, Cappa, Sf, Le Ber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, Je, Hjermind, Le, Riemenschneider, M, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, Mn, Fox, Nc, Warren, Jd, Spillantini, Mg, Morris, Hr, Rizzu, P, Heutink, P, Snowden, J, Rollinson, S, Richardson, A, Gerhard, A, Bruni, Ac, Maletta, R, Frangipane, F, Cupidi, C, Bernardi, L, Anfossi, M, Gallo, M, Conidi, Me, Smirne, N, Rademakers, R, Baker, M, Dickson, Dw, Graff Radford, Nr, Petersen, Rc, Knopman, D, Josephs, Ka, Boeve, Bf, Parisi, Je, Seeley, Ww, Miller, Bl, Karydas, Am, Rosen, H, van Swieten, Jc, Dopper, Eg, Seelaar, H, Pijnenburg, Ya, Scheltens, P, Logroscino, G, Capozzo, R, Novelli, V, Puca, Aa, Franceschi, M, Postiglione, Alfredo, Milan, G, Sorrentino, P, Kristiansen, M, Chiang, Hh, Graff, C, Pasquier, F, Rollin, A, Deramecourt, V, Lebert, F, Kapogiannis, D, Ferrucci, L, Pickering Brown, S, Singleton, Ab, Hardy, J, and Momeni, P.
Subjects: Adult, Male, Pathology, medicine.medical_specialty, Genotype, Semantic dementia, Genome-wide association study, Locus (genetics), classification [Frontotemporal Dementia], methods [Genome-Wide Association Study], diagnosis [Frontotemporal Dementia], C9orf72, mental disorders, medicine, Dementia, Humans, ddc:610, genetics [Frontotemporal Dementia], Aged, Genetics, Aged, 80 and over, Genetic heterogeneity, Middle Aged, medicine.disease, Frontotemporal Dementia, Female, Human medicine, Neurology (clinical), Alzheimer's disease, Psychology, Frontotemporal dementia, Genome-Wide Association Study
Abstract: Summary Background Frontotemporal dementia (FTD) is a complex disorder characterised by a broad range of clinical manifestations, differential pathological signatures, and genetic variability. Mutations in three genes— MAPT , GRN , and C9orf72 —have been associated with FTD. We sought to identify novel genetic risk loci associated with the disorder. Methods We did a two-stage genome-wide association study on clinical FTD, analysing samples from 3526 patients with FTD and 9402 healthy controls. To reduce genetic heterogeneity, all participants were of European ancestry. In the discovery phase (samples from 2154 patients with FTD and 4308 controls), we did separate association analyses for each FTD subtype (behavioural variant FTD, semantic dementia, progressive non-fluent aphasia, and FTD overlapping with motor neuron disease [FTD-MND]), followed by a meta-analysis of the entire dataset. We carried forward replication of the novel suggestive loci in an independent sample series (samples from 1372 patients and 5094 controls) and then did joint phase and brain expression and methylation quantitative trait loci analyses for the associated (p −8 ) single-nucleotide polymorphisms. Findings We identified novel associations exceeding the genome-wide significance threshold (p −8 ). Combined (joint) analyses of discovery and replication phases showed genome-wide significant association at 6p21.3, HLA locus (immune system), for rs9268877 (p=1·05 × 10 −8 ; odds ratio=1·204 [95% CI 1·11–1·30]), rs9268856 (p=5·51 × 10 −9 ; 0·809 [0·76–0·86]) and rs1980493 (p value=1·57 × 10 −8 , 0·775 [0·69–0·86]) in the entire cohort. We also identified a potential novel locus at 11q14, encompassing RAB38 / CTSC (the transcripts of which are related to lysosomal biology), for the behavioural FTD subtype for which joint analyses showed suggestive association for rs302668 (p=2·44 × 10 −7 ; 0·814 [0·71–0·92]). Analysis of expression and methylation quantitative trait loci data suggested that these loci might affect expression and methylation in cis . Interpretation Our findings suggest that immune system processes (link to 6p21.3) and possibly lysosomal and autophagy pathways (link to 11q14) are potentially involved in FTD. Our findings need to be replicated to better define the association of the newly identified loci with disease and to shed light on the pathomechanisms contributing to FTD. Funding The National Institute of Neurological Disorders and Stroke and National Institute on Aging, the Wellcome/MRC Centre on Parkinson's disease, Alzheimer's Research UK, and Texas Tech University Health Sciences Center.
Published: 2014
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24. Pharmacotherapy for behavioural manifestations in frontotemporal dementia: An expert consensus from the European Reference Network for Rare Neurological Diseases (ERN-RND).

Author: Wittebrood C, Boban M, Cagnin A, Capellari S, De Winter FL, Djamshidian A, González MM, Hjermind LE, Krajcovicova L, Krüger J, Levin J, Reetz K, Rodriguez ER, Rohrer J, Van Langenhove T, Reinhard C, Graessner H, Rusina R, Saracino D, Houot M, Seelar H, and Vandenberghe R
Subjects: Humans, Europe, Consensus, Antipsychotic Agents therapeutic use, Selective Serotonin Reuptake Inhibitors therapeutic use, Rare Diseases drug therapy, Aggression drug effects, Impulsive Behavior drug effects, Frontotemporal Dementia drug therapy
Abstract: Background and Purpose: Frontotemporal dementia (FTD) is a neurodegenerative disorder characterized by pervasive personality and behavioural disturbances with severe impact on patients and caregivers. In current clinical practice, treatment is based on nonpharmacological and pharmacological approaches. Unfortunately, trial-based evidence supporting symptomatic pharmacological treatment for the behavioural disturbances in FTD is scarce despite the significant burden this poses on the patients and caregivers., Method: The study examined drug management decisions for several behavioural disturbances in patients with FTD by 21 experts across European expert centres affiliated with the European Reference Network for Rare Neurological Diseases (ERN-RND)., Results: The study revealed the highest consensus on drug treatments for physical and verbal aggression, impulsivity and obsessive delusions. Antipsychotics (primarily quetiapine) were recommended for behaviours posing safety risks to both patients and caregivers (aggression, self-injury and self-harm) and nightly unrest. Selective serotonin reuptake inhibitors were recommended for perseverative somatic complaints, rigidity of thought, hyperphagia, loss of empathy and for impulsivity. Trazodone was specifically recommended for motor unrest, mirtazapine for nightly unrest, and bupropion and methylphenidate for apathy. Additionally, bupropion was strongly advised against in 10 out of the 14 behavioural symptoms, emphasizing a clear recommendation against its use in the majority of cases., Conclusions: The survey data can provide expert guidance that is helpful for healthcare professionals involved in the treatment of behavioural symptoms. Additionally, they offer insights that may inform prioritization and design of therapeutic studies, particularly for existing drugs targeting behavioural disturbances in FTD., (© 2024 The Author(s). European Journal of Neurology published by John Wiley & Sons Ltd on behalf of European Academy of Neurology.)
Published: 2024
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25. Impairments of social cognition significantly predict the progression of functional decline in Huntington's disease: A 6-year follow-up study.

Author: Hendel RK, Hellem MNN, Larsen IU, Vinther-Jensen T, Hjermind LE, Nielsen JE, and Vogel A
Subjects: Humans, Male, Female, Adult, Middle Aged, Follow-Up Studies, Cognitive Dysfunction physiopathology, Cognitive Dysfunction etiology, Neuropsychological Tests, Huntington Disease physiopathology, Huntington Disease complications, Social Cognition, Disease Progression, Executive Function physiology
Abstract: This study sought to investigate if there was a significant difference between the Huntington's Disease gene expansion carriers who were impaired on the cognitive domains, social cognition and executive functions . Also, it was investigated which of the cognitive domains could predict the decrease in total functional capacity over a 6-year follow-up period. Premanifest and motor-manifest Huntington's Disease gene expansion carriers ( N = 98), were examined with a neurological and neuropsychological examination at Time 1 (year 2012-2013). Regression-based normative data was used to classify impairments on the two cognitive domains. Follow-up participants ( N = 80) had their functional capacity reexamined at Time 2 (year 2018-2020), to examine which cognitive domain could predict the decrease in functional capacity over the 6-year follow-up. More than 50% of the participants were impaired on the domain of social cognition . These participants were significantly different from the participants who were impaired on executive functions . The motor function and impairments on social cognition significantly predicted the decline in functional capacity. The Emotion Hexagon test was the only significant social cognitive task, that predicted the decline in functional capacity. Social cognition includes unique and separate functions in Huntington's Disease, unaffected by executive functions. This study emphasizes the importance of regular assessment of social cognition in Huntington's Disease and the clinical relevance of impaired social cognitive function.
Published: 2024
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26. Genome-wide analyses reveal a potential role for the MAPT, MOBP, and APOE loci in sporadic frontotemporal dementia.

Author: Manzoni C, Kia DA, Ferrari R, Leonenko G, Costa B, Saba V, Jabbari E, Tan MM, Albani D, Alvarez V, Alvarez I, Andreassen OA, Angiolillo A, Arighi A, Baker M, Benussi L, Bessi V, Binetti G, Blackburn DJ, Boada M, Boeve BF, Borrego-Ecija S, Borroni B, Bråthen G, Brooks WS, Bruni AC, Caroppo P, Bandres-Ciga S, Clarimon J, Colao R, Cruchaga C, Danek A, de Boer SC, de Rojas I, di Costanzo A, Dickson DW, Diehl-Schmid J, Dobson-Stone C, Dols-Icardo O, Donizetti A, Dopper E, Durante E, Ferrari C, Forloni G, Frangipane F, Fratiglioni L, Kramberger MG, Galimberti D, Gallucci M, García-González P, Ghidoni R, Giaccone G, Graff C, Graff-Radford NR, Grafman J, Halliday GM, Hernandez DG, Hjermind LE, Hodges JR, Holloway G, Huey ED, Illán-Gala I, Josephs KA, Knopman DS, Kristiansen M, Kwok JB, Leber I, Leonard HL, Libri I, Lleo A, Mackenzie IR, Madhan GK, Maletta R, Marquié M, Maver A, Menendez-Gonzalez M, Milan G, Miller BL, Morris CM, Morris HR, Nacmias B, Newton J, Nielsen JE, Nilsson C, Novelli V, Padovani A, Pal S, Pasquier F, Pastor P, Perneczky R, Peterlin B, Petersen RC, Piguet O, Pijnenburg YA, Puca AA, Rademakers R, Rainero I, Reus LM, Richardson AM, Riemenschneider M, Rogaeva E, Rogelj B, Rollinson S, Rosen H, Rossi G, Rowe JB, Rubino E, Ruiz A, Salvi E, Sanchez-Valle R, Sando SB, Santillo AF, Saxon JA, Schlachetzki JC, Scholz SW, Seelaar H, Seeley WW, Serpente M, Sorbi S, Sordon S, St George-Hyslop P, Thompson JC, Van Broeckhoven C, Van Deerlin VM, Van der Lee SJ, Van Swieten J, Tagliavini F, van der Zee J, Veronesi A, Vitale E, Waldo ML, Yokoyama JS, Nalls MA, Momeni P, Singleton AB, Hardy J, and Escott-Price V
Subjects: Humans, Male, Female, Aged, Polymorphism, Single Nucleotide, Genetic Loci, Middle Aged, Case-Control Studies, Myelin Proteins, Frontotemporal Dementia genetics, tau Proteins genetics, Genome-Wide Association Study, Apolipoproteins E genetics, Genetic Predisposition to Disease
Abstract: Frontotemporal dementia (FTD) is the second most common cause of early-onset dementia after Alzheimer disease (AD). Efforts in the field mainly focus on familial forms of disease (fFTDs), while studies of the genetic etiology of sporadic FTD (sFTD) have been less common. In the current work, we analyzed 4,685 sFTD cases and 15,308 controls looking for common genetic determinants for sFTD. We found a cluster of variants at the MAPT (rs199443; p = 2.5 × 10 -12 , OR = 1.27) and APOE (rs6857; p = 1.31 × 10 -12 , OR = 1.27) loci and a candidate locus on chromosome 3 (rs1009966; p = 2.41 × 10 -8 , OR = 1.16) in the intergenic region between RPSA and MOBP, contributing to increased risk for sFTD through effects on expression and/or splicing in brain cortex of functionally relevant in-cis genes at the MAPT and RPSA-MOBP loci. The association with the MAPT (H1c clade) and RPSA-MOBP loci may suggest common genetic pleiotropy across FTD and progressive supranuclear palsy (PSP) (MAPT and RPSA-MOBP loci) and across FTD, AD, Parkinson disease (PD), and cortico-basal degeneration (CBD) (MAPT locus). Our data also suggest population specificity of the risk signals, with MAPT and APOE loci associations mainly driven by Central/Nordic and Mediterranean Europeans, respectively. This study lays the foundations for future work aimed at further characterizing population-specific features of potential FTD-discriminant APOE haplotype(s) and the functional involvement and contribution of the MAPT H1c haplotype and RPSA-MOBP loci to pathogenesis of sporadic forms of FTD in brain cortex., Competing Interests: Declaration of interests O.A.A. has received speakers’ honoraria from Janssen, Lundbeck, and Sunovion and is a consultant to Cortechs.ai. C.C. received research support from GSK and EISAI. The funders of the study had no role in the collection, analysis, or interpretation of data; in the writing of the report; or in the decision to submit the paper for publication. C.C. is a member of the advisory board of Vivid Genomics and Circular Genomics. M.A.N. and H.L.L. hold part of a competitive contract awarded to Data Tecnica International LLC by the National Institutes of Health to support open science research. M.A.N. currently serves on the scientific advisory board for Character Bio Inc. and Neuron23 Inc. I.R.M. receives license royalties for patent related to PGRN therapy and is a member of the scientific advisory committee for Prevail Therapeutics. H.R.M. is employed by UCL. In the last 12 months he reports paid consultancy from Roche, Aprinoia, AI Therapeutics, and Amylyx; lecture fees/honoraria from BMJ, Kyowa Kirin, and Movement Disorders Society; and research grants from Parkinson’s UK, Cure Parkinson’s Trust, PSP Association, Medical Research Council, and the Michael J. Fox Foundation. H.R.M. is a co-applicant on a patent application related to C9ORF72—Method for diagnosing a neurodegenerative disease (PCT/GB2012/052140). R.P. has received honoraria for advisory boards and speaker engagements from Roche, EISAI, Eli Lilly, Biogen, Janssen-Cilag, Astra Zeneca, Schwabe, Grifols, Novo Nordisk, and Tabuk. R.S.-V. served in advisory board meetings for Wave Life Sciences, Ionis, and Novo Nordisk; has received personal fees for participating in educational activities from Janssen, Roche Diagnostics, and Neuraxpharm; and has received funding to her institution for research projects from Biogen and Sage Pharmaceuticals. S.W.S. received research support from Cerevel Therapeutics and is a member of the scientific advisory board of the Lewy Body Dementia Association and the Multiple System Atrophy Coalition. J.S.Y. serves on the scientific advisory board for the Epstein Family Alzheimer’s Research Collaboration. J.H. does consulting and gives talks for Eli-Lilly, Roche, and Eisai and is on the Ceracuity advisory board., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
Published: 2024
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27. On the association between apathy and deficits of social cognition and executive functions in Huntington's disease.

Author: Hendel RK, Hellem MNN, Hjermind LE, Nielsen JE, and Vogel A
Subjects: Humans, Executive Function, Social Cognition, Emotions, Neuropsychological Tests, Cognition, Huntington Disease complications, Huntington Disease psychology, Apathy
Abstract: Objective: To investigate if executive and social cognitive dysfunction was associated with apathy in a large cohort of Huntington's disease gene expansion carriers., Method: Eighty premanifest and motor-manifest Huntington's disease gene expansion carriers (Mini-Mental State Examination score ≥ 24 and Montreal Cognitive Assessment score ≥ 19) and thirty-two controls were examined with the Lille Apathy Rating Scale (LARS), a tailored and quantitative measure of apathy, and a comprehensive cognitive battery on executive functions and social cognition (emotion recognition, theory of mind and sarcasm detection), as well as general correlates like demographic variables, and neuropsychiatric and cognitive screening tests., Results: The motor-manifest Huntington's disease gene expansion carriers had significantly different scores on most measures of social cognition and executive functions, compared to premanifest and control participants. Apathy was significantly correlated with most executive test scores, but the Emotion Hexagon was the only social cognitive test score significantly correlated with apathy. We found that the motor score and the depression score were the only significant predictors of the apathy score, when the social cognitive and executive tests with the strongest association with the global LARS score were entered into a multiple stepwise regression model. No cognitive test score could significantly predict apathy. The model explained 21 % of the total variance., Conclusion: Despite being significantly correlated with apathy neuropsychological variables did not have a significant impact on apathy when variables as depression and motor symptoms were taken into account. Apathy should be considered an independent symptom of Huntington's disease that requires specific examination.
Published: 2023
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28. Decreased CSF oxytocin relates to measures of social cognitive impairment in Huntington's disease patients.

Author: Hellem MNN, Cheong RY, Tonetto S, Vinther-Jensen T, Hendel RK, Larsen IU, Nielsen TT, Hjermind LE, Vogel A, Budtz-Jørgensen E, Petersén Å, and Nielsen JE
Subjects: Emotions, Humans, Cognitive Dysfunction etiology, Huntington Disease complications, Oxytocin cerebrospinal fluid
Abstract: Objective: Huntington's disease (HD) is an inherited neurodegenerative disease with motor, cognitive and psychiatric symptoms. Non-motor symptoms like depression and altered social cognition are proposed to be caused by dysfunction of the hypothalamus. We measured the hypothalamic neuropeptide oxytocin in plasma and cerebrospinal fluid (CSF) in a cohort of HD gene expansion carriers (HDGECs), compared the levels to healthy HD family controls and correlated oxytocin levels to disease progression and social cognition., Methods: We recruited 113 HDGECs and 33 controls. Psychiatric and cognitive symptoms were evaluated, and social cognition was assessed with the Emotion Hexagon test, Reading the Mind in the Eyes and The Awareness of Social Inference Test. The levels of oxytocin in CSF and blood were analyzed by radioimmunoassay., Results: We found the level of oxytocin in CSF to be significantly lower by 33.5% in HDGECs compared to controls (p = 0.016). When dividing the HDGECs into groups with or without cognitive impairment, we found the oxytocin level to be significantly lower by 30.3% in the HDGECs with cognitive symptoms (p = 0.046). We found a statistically significant correlation between the level of oxytocin and scores on social cognition (Reading the Mind in the Eyes p = 0.0019; Emotion Hexagon test: p = 0.0062; The Awareness of Social Inference Test: p = 0.002)., Conclusions: This is the first study to measure oxytocin in the CSF of HDGECs. We find that HDGECs have a significantly lower level of oxytocin compared to controls, and that the level of oxytocin may represent an objective and comparable measure that could be used as a state biomarker for impairment of social cognition. We suggest treatment trials to evaluate a potential effect of oxytocin on social cognition in HD., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
Published: 2022
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29. Corrigendum: Combining Literature Review With a Ground Truth Approach for Diagnosing Huntington's Disease Phenocopy.

Author: Nguyen QTR, Ortigoza Escobar JD, Burgunder JM, Mariotti C, Saft C, Hjermind LE, Youssov K, Landwehrmeyer GB, and Bachoud-Lévi AC
Abstract: [This corrects the article DOI: 10.3389/fneur.2022.817753.]., (Copyright © 2022 Nguyen, Ortigoza Escobar, Burgunder, Mariotti, Saft, Hjermind, Youssov, Landwehrmeyer and Bachoud-Lévi.)
Published: 2022
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30. A randomised double-blind controlled study of Deep Brain Stimulation for dystonia in STN or GPi - A long term follow-up after up to 15 years.

Author: Hock AN, Jensen SR, Svaerke KW, Brennum J, Jespersen B, Bergdal O, Karlsborg M, Hjermind LE, and Lokkegaard A
Subjects: Adult, Cross-Over Studies, Follow-Up Studies, Globus Pallidus, Heredodegenerative Disorders, Nervous System, Humans, Prospective Studies, Treatment Outcome, Deep Brain Stimulation methods, Dystonic Disorders therapy, Subthalamic Nucleus surgery, Torticollis therapy
Abstract: Aim: This is a long-term open follow-up of a prospective double-blind crossover study, where electrodes were bilaterally implanted in both the Subthalamic nucleus (STN) and internal pallidum (GPi) in patients with isolated dystonia., Methods: Patients with isolated dystonia were included to undergo surgery with Deep Brain stimulation (DBS) and after randomization, in a double-blind cross-over study, receiving bilateral stimulation of either STN or GPi for 6 months in each target. Preoperative and postoperative assessments with the Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS) and the 36-item Short Form Health Survey (SF-36) were performed. In this long-term follow-up (LFU), these ratings were repeated, and patients were evaluated with cognitive tests., Results: 21 patients were included in the protocol, 9 patients with generalized dystonia, 12 with a diagnosis of cervical dystonia. The mean duration of disease was 19.3 years, age at time of surgery 50.1 years. Fourteen patients participated in the LFU. At a mean follow-up of 10.2 years (range 4.8-15.4), BFMDRS movement score was improved with a mean of 36% (p < 0.05) compared with baseline. At LFU both a statistically significant improvement of stimulation in STN on BFMDRS movement score (p = 0.029) and Gpi (p = 0.008) was demonstrated, no significant difference was found between the two targets (p = 0.076). SF-36 improved for both targets., Conclusion: In this study we performed a long-term follow-up in 14 patients with cervical or generalized dystonia, who received stimulation in GPi, STN or both. The mean follow-up time was more than 10 years. Our data support a long-term effect of both STN-DBS and GPi-DBS in dystonia with equal effect and safety for up to 15 years. STN has been proven a viable safe and effective target and may be used as an alternative to GPi in both adult-onset cervical dystonia and generalized dystonia., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
Published: 2022
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31. An Exploratory Study Investigating Autonomy in Huntington's Disease Gene Expansion Carriers.

Author: Hendel RK, Hellem MNN, Hjermind LE, Nielsen JE, and Vogel A
Subjects: Humans, Heterozygote, Self Report, Huntington Disease psychology, Apathy
Abstract: Background: Autonomy describes a psychological state of self-regulation of motivation and action, which is a central characteristic of healthy functioning. In neurodegenerative diseases measures of self-perception have been found to be affected by the disease. However, it has never been investigated whether measures of self-perception, like autonomy, is affected in Huntington's disease., Objective: We investigated whether autonomy is affected in Huntington's disease and if the degree of autonomy is associated with motor function, neuropsychiatric symptoms, cognitive impairments, and apathy., Methods: We included 44 premanifest and motor-manifest Huntington's disease gene expansion carriers and 19 controls. Autonomy was examined using two self-report questionnaires, the Autonomy-Connectedness Scale-30 and the Index of Autonomous Functioning. All participants were examined according to motor function, cognitive impairments, and neuropsychiatric symptoms, including apathy., Results: Statistically significant differences were found between motor-manifest Huntington's disease gene expansion carriers and premanifest Huntington's disease gene expansion carriers or controls on two measures of autonomy. Between 25-38% of motor-manifest Huntington's disease gene expansion carriers scored significantly below the normal level on subscales of autonomy as compared to controls. One autonomy subscale was associated with apathy (r = -0.65), but not with other symptoms of Huntington's disease., Conclusion: This study provides evidence for impaired autonomy in individuals with Huntington's disease and an association between autonomy and apathy. The results underline the importance of maintaining patient autonomy and involvement in care throughout the disease.
Published: 2022
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32. Intellectual Curiosity and Action Initiation are Subtypes of Apathy Affected in Huntington Disease Gene Expansion Carriers.

Author: Hendel RK, Hellem MNN, Hjermind LE, Nielsen JE, and Vogel A
Subjects: Cognition, Exploratory Behavior, Humans, Apathy, Cognition Disorders, Huntington Disease genetics
Abstract: Background: Apathy is a prevalent behavioral syndrome of Huntington disease (HD) that can result in severe loss of function for the individual with HD and substantial caregiver distress. Research-based evidence of apathy is characterized by methodological differences, and there is a deficiency in the evidence concerning the subtypes of apathy., Objective: To characterize apathy in premanifest and motor-manifest HD gene expansion carriers and controls using the Short Problem Behaviors Assessment for Huntington's Disease (PBA-s) and the Lille Apathy Rating Scale (LARS)., Method: We included 82 HD gene expansion carriers (premanifest and motor manifest) and 32 controls (Mini-Mental State Examination score ≥24 and Montreal Cognitive Assessment score ≥19) in the study. We quantified apathy using the PBA-s and the LARS and performed correlation analyses between the global LARS score and motor function, cytosine-adenine-guanine repeat length, cytosine-adenine-guanine Age Product score, and neuropsychiatric and cognitive symptoms., Results: The motor-manifest HD gene expansion carriers scored significantly higher than the controls on the global score and the Intellectual Curiosity and Action Initiation subscales of the LARS. Apathy was present in 28% of the HD gene expansion carriers (including 7 premanifest). The apathetic participants had a significantly higher motor score, significantly higher scores on the neuropsychiatric instruments, and significantly lower cognitive scores compared with the controls., Conclusion: Apathy is a frequent syndrome that is found in individuals with HD. Apathy has a specific expression, with symptoms such as reduced initiation, voluntary actions, and interests, that might be related to the underlying neuropathology. Apathy is related to disease progression, neuropsychiatric symptoms, and cognitive impairments., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)
Published: 2021
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33. Identifying dominant-negative actions of a dopamine transporter variant in patients with parkinsonism and neuropsychiatric disease.

Author: Herborg F, Jensen KL, Tolstoy S, Arends NV, Posselt LP, Shekar A, Aguilar JI, Lund VK, Erreger K, Rickhag M, Lycas MD, Lonsdale MN, Rahbek-Clemmensen T, Sørensen AT, Newman AH, Løkkegaard A, Kjærulff O, Werge T, Møller LB, Matthies HJ, Galli A, Hjermind LE, and Gether U
Subjects: Adult, Animals, Behavior, Animal, Biological Transport, Cells, Cultured, Databases, Genetic, Drosophila, Exome, Female, Humans, Hypokinesia diagnostic imaging, Hypokinesia genetics, Hypokinesia metabolism, Male, Mental Disorders metabolism, Mesencephalon metabolism, Mice, Middle Aged, Motor Activity genetics, Mutation, Parkinsonian Disorders diagnostic imaging, Parkinsonian Disorders metabolism, Phenotype, Synaptic Transmission, Tomography, Emission-Computed, Single-Photon, Transfection, Dopamine metabolism, Dopamine Plasma Membrane Transport Proteins genetics, Dopamine Plasma Membrane Transport Proteins metabolism, Mental Disorders genetics, Neurons metabolism, Parkinsonian Disorders genetics
Abstract: Dysfunctional dopaminergic neurotransmission is central to movement disorders and mental diseases. The dopamine transporter (DAT) regulates extracellular dopamine levels, but the genetic and mechanistic link between DAT function and dopamine-related pathologies is not clear. Particularly, the pathophysiological significance of monoallelic missense mutations in DAT is unknown. Here, we use clinical information, neuroimaging, and large-scale exome-sequencing data to uncover the occurrence and phenotypic spectrum of a DAT coding variant, DAT-K619N, which localizes to the critical C-terminal PSD-95/Discs-large/ZO-1 homology-binding motif of human DAT (hDAT). We identified the rare but recurrent hDAT-K619N variant in exome-sequenced samples of patients with neuropsychiatric diseases and a patient with early-onset neurodegenerative parkinsonism and comorbid neuropsychiatric disease. In cell cultures, hDAT-K619N displayed reduced uptake capacity, decreased surface expression, and accelerated turnover. Unilateral expression in mouse nigrostriatal neurons revealed differential effects of hDAT-K619N and hDAT-WT on dopamine-directed behaviors, and hDAT-K619N expression in Drosophila led to impairments in dopamine transmission with accompanying hyperlocomotion and age-dependent disturbances of the negative geotactic response. Moreover, cellular studies and viral expression of hDAT-K619N in mice demonstrated a dominant-negative effect of the hDAT-K619N mutant. Summarized, our results suggest that hDAT-K619N can effectuate dopamine dysfunction of pathological relevance in a dominant-negative manner.
Published: 2021
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34. Endophenotypical drift in Huntington's disease: a 5-year follow-up study.

Author: Hellem MNN, Hendel RK, Vinther-Jensen T, Larsen IU, Nielsen TT, Hjermind LE, Budtz-Jørgensen E, Vogel A, and Nielsen JE
Subjects: Follow-Up Studies, Humans, Huntington Disease genetics
Abstract: Background: Huntington's disease (HD) is clinically characterized by progressing motor, cognitive and psychiatric symptoms presenting as varying phenotypes within these three major symptom domains. The disease is caused by an expanded CAG repeat tract in the huntingtin gene and the pathomechanism leading to these endophenotypes is assumed to be neurodegenerative. In 2012/2013 we recruited 107 HD gene expansion carriers (HDGECs) and examined the frequency of the three cardinal symptoms and in 2017/2018 we followed up 74 HDGECs from the same cohort to describe the symptom trajectories and individual drift between the endophenotypes as well as potential predictors of progression and remission., Results: We found higher age to reduce the probability of improving on psychiatric symptoms; increasing disease burden score ((CAG-35.5) * age) to increase the risk of developing cognitive impairment; increasing disease burden score and shorter education to increase the risk of motor onset while lower disease burden score and higher Mini Mental State Examination increased the probability of remaining asymptomatic. We found 23.5% (N = 8) to improve from their psychiatric symptoms., Conclusions: There is no clear pattern in the development of or drift between endophenotypes. In contrast to motor and cognitive symptoms we find that psychiatric symptoms may resolve and thereby not entirely be caused by neurodegeneration. The probability of improving from psychiatric symptoms is higher in younger age and advocates for a potential importance of early treatment., (© 2021. The Author(s).)
Published: 2021
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35. Hybrid 2-[18F] FDG PET/MRI in premanifest Huntington's disease gene-expansion carriers: The significance of partial volume correction.

Author: Hellem MNN, Vinther-Jensen T, Anderberg L, Budtz-Jørgensen E, Hjermind LE, Larsen VA, Nielsen JE, and Law I
Subjects: Adult, Female, Fluorodeoxyglucose F18, Humans, Huntingtin Protein genetics, Huntington Disease genetics, Male, Middle Aged, Radiopharmaceuticals, Trinucleotide Repeat Expansion, Heterozygote, Huntington Disease diagnostic imaging, Magnetic Resonance Imaging methods, Multimodal Imaging methods, Positron-Emission Tomography methods
Abstract: Background: Huntington's disease (HD) is an inherited, progressive neurodegenerative disease that has no cure. Striatal atrophy and hypometabolism has been described in HD as far as 15 years before clinical onset and therefore structural and functional imaging biomarkers are the most applied biomarker modalities which call for these to be exact; however, most studies are not considering the partial volume effect and thereby tend to overestimate metabolic reductions, which may bias imaging outcome measures of interventions., Objective: Evaluation of partial volume effects in a cohort of premanifest HD gene-expansion carriers (HDGECs)., Methods: 21 HDGECs and 17 controls had a hybrid 2-[18F]FDG PET/MRI scan performed. Volume measurements and striatal metabolism, both corrected and uncorrected for partial volume effect were correlated to an estimate of disease burden, the CAG age product scaled (CAPS)., Results: We found significantly reduced striatal metabolism in HDGECs, but not in striatal volume. There was a negative correlation between the CAPS and striatal metabolism, both corrected and uncorrected for the partial volume effect. The partial volume effect was largest in the smallest structures and increased the difference in metabolism between the HDGEC with high and low CAPS scores. Statistical parametric mapping confirmed the results., Conclusions: A hybrid 2-[18F]FDG PET/MRI scan provides simultaneous information on structure and metabolism. Using this approach for the first time on HDGECs, we highlight the importance of partial volume effect correction in order not to underestimate the standardized uptake value and thereby the risk of overestimating the metabolic effect on the striatal structures, which potentially could bias studies determining imaging outcome measures of interventions in HDGECs and probably also symptomatic HD., Competing Interests: The authors have declared that no competing interests exist.
Published: 2021
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36. Paroxysmal Cranial Dyskinesia and Nail-Patella Syndrome Caused by a Novel Variant in the LMX1B Gene.

Author: Bech S, Løkkegaard A, Nielsen TT, Nørremølle A, Grønborg S, Hasholt L, Steffensen GK, Graehn G, Olesen JH, Tommerup N, Mang Y, Bak M, Nielsen JE, Eiberg H, and Hjermind LE
Subjects: Humans, LIM-Homeodomain Proteins genetics, Skull, Transcription Factors genetics, Chorea, Nail-Patella Syndrome genetics
Abstract: Background: In a Danish family, multiple individuals in five generations present with early-onset paroxysmal cranial dyskinesia, musculoskeletal abnormalities, and kidney dysfunction., Objective: To demonstrate linkage and to identify the underlying genetic cause of disease., Methods: Genome-wide single-nucleotide polymorphisms analysis, Sequence-Tagged-Site marker analyses, exome sequencing, and Sanger sequencing were performed., Results: Linkage analyses identified a candidate locus on chromosome 9. Exome sequencing revealed a novel variant in LMX1B present in all affected individuals, logarithm of the odds (LOD) score of z = 6.54, predicted to be damaging. Nail-patella syndrome (NPS) is caused by pathogenic variants in LMX1B encoding a transcription factor essential to cytoskeletal and kidney growth and dopaminergic and serotonergic network development. NPS is characterized by abnormal musculoskeletal features and kidney dysfunction. Movement disorders have not previously been associated with NPS., Conclusions: Paroxysmal dyskinesia is a heretofore unrecognized feature of the NPS spectrum. The pathogenic mechanism might relate to aberrant dopaminergic circuits. © 2020 International Parkinson and Movement Disorder Society., (© 2020 International Parkinson and Movement Disorder Society.)
Published: 2020
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37. Early Intrathecal T Helper 17.1 Cell Activity in Huntington Disease.

Author: von Essen MR, Hellem MNN, Vinther-Jensen T, Ammitzbøll C, Hansen RH, Hjermind LE, Nielsen TT, Nielsen JE, and Sellebjerg F
Subjects: Adult, Aged, Cell Proliferation, Cytokines cerebrospinal fluid, Cytokines metabolism, Female, Heterozygote, Humans, Huntingtin Protein genetics, Huntington Disease cerebrospinal fluid, Huntington Disease genetics, Male, Middle Aged, T-Lymphocyte Subsets immunology, Th17 Cells metabolism, Trinucleotide Repeat Expansion genetics, Huntington Disease immunology, Huntington Disease physiopathology, Lymphocyte Activation immunology, Th17 Cells immunology
Abstract: Objective: Huntington disease (HD) is an autosomal dominantly inherited neurodegenerative disorder caused by a CAG repeat expansion in the huntingtin (HTT) gene. No disease-modifying therapy exists for the treatment of patients with HD. The purpose of this study was therefore to investigate early disease mechanisms that potentially could be used as a target therapeutically., Methods: Lymphocyte activity in cerebrospinal fluid (CSF) from 4 cohorts of HTT gene expansion carriers (n = 121 in total) and controls was analyzed by techniques based on flow cytometry and enzyme-linked immunosorbent assays., Results: The data of this study provide evidence of immune abnormalities before motor onset of disease. In CSF of HTT gene expansion carriers, we found increased levels of proinflammatory cytokines, including IL-17, and increased consumption of the lymphocyte growth factor IL-7 before motor onset of HD. In concordance, we observed an increased prevalence of IL-17-producing Th17.1 cells in the CSF of HTT gene expansion carriers, predominantly in pre-motor manifest individuals. The frequency of intrathecal Th17.1 cells correlated negatively with progression of HD and the level of neurodegeneration, suggesting a role of Th17.1 cells in the early disease stage. We also observed a skewing in the balance between proinflammatory and regulatory T cells potentially favoring a proinflammatory intrathecal environment in HTT gene expansion carriers., Interpretation: These data suggest that Th17.1 cells are implicated in the earliest pathogenic phases of HD and suggest that treatment to dampen T -cell-driven inflammation before motor onset might be of benefit in HTT gene expansion carriers. ANN NEUROL 2020;87:246-255., (© 2019 American Neurological Association.)
Published: 2020
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38. Peripheral neuropathy in hereditary spastic paraplegia caused by REEP1 variants.

Author: Toft A, Birk S, Ballegaard M, Dunø M, Hjermind LE, Nielsen JE, and Svenstrup K
Subjects: Adolescent, Adult, Carpal Tunnel Syndrome etiology, Carpal Tunnel Syndrome physiopathology, Child, Female, Humans, Male, Middle Aged, Pedigree, Phenotype, Spastic Paraplegia, Hereditary complications, Spastic Paraplegia, Hereditary physiopathology, Young Adult, Membrane Transport Proteins genetics, Neural Conduction physiology, Polyneuropathies etiology, Polyneuropathies genetics, Polyneuropathies physiopathology, Spastic Paraplegia, Hereditary genetics
Abstract: SPG31 is a hereditary spastic paraplegia (HSP) caused by pathogenic variants in the REEP1 gene. The phenotype (SPG31) has occasionally been described with peripheral nervous system involvement, in additional to the gradually progressing lower limb spasticity that characterizes HSP. The objective of this study was to characterize patients with pathogenic REEP1 variants and neurophysiologically assess the extent of peripheral nerve involvement in this patient group. Thirty-eight index cases were molecular-genetically tested, yielding two previously reported pathogenic REEP1 variants and a novel missense variant, in a total of four index patients. Three of four probands and five additional family members underwent nerve conduction studies, electromyography, quantitative sensory testing, and examination of the autonomic nervous system. None of the examined patients had completely unremarkable results of peripheral nerve studies. Most showed electrophysiological signs of carpal tunnel syndrome, and one patient demonstrated a multifocal compression neuropathy. Autonomic testing revealed no severe dysfunction, and findings were limited to adrenergic function. HSP caused by pathogenic REEP1 variants may be accompanied by a generally mild and subclinical polyneuropathy with a predisposition to compression neuropathy, and should be considered in such cases.
Published: 2019
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39. Does arterial hypertension influence the onset of Huntington's disease?

Author: Valcárcel-Ocete L, Fullaondo A, Alkorta-Aranburu G, García-Barcina M, Roos RAC, Hjermind LE, Saft C, Frontali M, Reilmann R, Rickards H, Zubiaga AM, and Aguirre A
Subjects: Age of Onset, Alleles, Female, Humans, Huntington Disease epidemiology, Huntington Disease genetics, Male, Middle Aged, Huntington Disease complications, Hypertension complications
Abstract: Huntington's disease (HD) age of onset (AO) is mainly determined by the length of the CAG repeat expansion in the huntingtin gene. The remaining AO variability has been attributed to other little-known factors. A factor that has been associated with other neurodegenerative diseases is arterial hypertension (AHT). The aim of this study is to evaluate the contribution of AHT to the AO of HD. We used data from a cohort of 630 European HD patients with adult onset collected by the REGISTRY project of the European Huntington's Disease Network. Multiple linear regression and ANOVA, controlling for the CAG repeat number of the expanded allele (CAGexp) of each patient, were performed to assess the association between the AHT condition and the AO of the motor symptoms (mAO). The results showed a significant association between AHT and mAO, especially when we only considered the patients diagnosed with AHT prior to manifesting any HD signs (pre-HD AHT). Remarkably, despite the low number of cases, those patients developed motor symptoms 5-8 years later than normotensive patients in the most frequent CAGexp range (40-44). AHT is an age-related condition and consequently, the age of the patient at the time of data collection could be a confounder variable. However, given that most pre-HD AHT patients included in our study had started treatment with antihypertensive drugs prior to the onset of HD, and that antihypertensive drugs have been suggested to confer a neuroprotective effect in other neurodegenerative diseases, raises the interest in elucidating the impact of AHT and/or AHT treatment in HD age of onset in further studies. A confirmation of our results in a larger sample set would open the possibility to significantly improve HD management., Competing Interests: The authors have declared that no competing interests exist.
Published: 2018
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40. Quantitative Measurements of Motor Function in Alzheimer's Disease, Frontotemporal Dementia, and Dementia with Lewy Bodies: A Proof-of-Concept Study.

Author: Jeppesen Kragh F, Bruun M, Budtz-Jørgensen E, Hjermind LE, Schubert R, Reilmann R, Nielsen JE, and Hasselbalch SG
Subjects: Aged, Cognition, Cross-Sectional Studies, Denmark, Diagnosis, Differential, Female, Humans, Male, Middle Aged, Movement Disorders etiology, Alzheimer Disease diagnosis, Alzheimer Disease physiopathology, Alzheimer Disease psychology, Frontotemporal Dementia diagnosis, Frontotemporal Dementia physiopathology, Frontotemporal Dementia psychology, Lewy Body Disease diagnosis, Lewy Body Disease physiopathology, Lewy Body Disease psychology, Motor Skills, Movement Disorders diagnosis
Abstract: Background: This study examines the efficacy of using quantitative measurements of motor dysfunction, compared to clinical ratings, in Alzheimer's disease (AD), frontotemporal dementia (FTD), and dementia with Lewy bodies (DLB)., Methods: In this cross-sectional study, 49 patients with a diagnosis of AD (n = 17), FTD (n = 19), or DLB (n = 13) were included and underwent cognitive testing, clinical motor evaluation, and quantitative motor tests: pronation/supination hand tapping, grasping and lifting, and finger and foot tapping., Results: Our results revealed significantly higher Q-Motor values in pronation/supination and in grip lift force assessment in AD, FTD, and DLB compared to healthy controls (HC). Q-Motor values detected significant differences between AD and HC, while clinical ratings did not., Conclusion: Our results suggest that quantitative measurements provide more objective and sensitive measurements of motor dysfunction in dementia., (© 2018 S. Karger AG, Basel.)
Published: 2018
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41. Defining active progressive multiple sclerosis.

Author: Sellebjerg F, Börnsen L, Ammitzbøll C, Nielsen JE, Vinther-Jensen T, Hjermind LE, von Essen M, Ratzer RL, Soelberg Sørensen P, and Romme Christensen J
Subjects: Adult, Biomarkers cerebrospinal fluid, Disease Progression, Female, Humans, Male, Middle Aged, Multiple Sclerosis, Chronic Progressive cerebrospinal fluid, Multiple Sclerosis, Chronic Progressive immunology, Multiple Sclerosis, Chronic Progressive pathology
Abstract: Background: It is unknown whether disease activity according to consensus criteria (magnetic resonance imaging activity or clinical relapses) associate with cerebrospinal fluid (CSF) changes in progressive multiple sclerosis (MS)., Objective: To compare CSF biomarkers in active and inactive progressive MS according to consensus criteria., Methods: Neurofilament light chain (NFL), myelin basic protein (MBP), IgG-index, chitinase-3-like-1 (CHI3L1), matrix metalloproteinase-9 (MMP-9), chemokine CXCL13, terminal complement complex, leukocyte counts and nitric oxide metabolites were measured in primary ( n = 26) and secondary progressive MS ( n = 26) and healthy controls ( n = 24)., Results: Progressive MS patients had higher CSF cell counts, IgG-index, CHI3L1, MMP-9, CXCL13, NFL and MBP concentrations. Active patients were younger and had higher NFL, CXCL13 and MMP-9 concentrations than inactive patients. Patients with active disease according to consensus criteria or detectable CXCL13 or MMP-9 in CSF were defined as having combined active progressive MS. These patients had increased CSF cell counts, IgG-index and MBP, NFL and CHI3L1 concentrations. Combined inactive patients only had increased IgG-index and MBP concentrations., Conclusion: Patients with combined active progressive MS show evidence of inflammation, demyelination and neuronal/axonal damage, whereas the remaining patients mainly show evidence of active demyelination. This challenges the idea that neurodegeneration independent of inflammation is crucial in disease progression.
Published: 2017
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42. A Novel TTBK2 De Novo Mutation in a Danish Family with Early-Onset Spinocerebellar Ataxia.

Author: Lindquist SG, Møller LB, Dali CI, Marner L, Kamsteeg EJ, Nielsen JE, and Hjermind LE
Subjects: Brain diagnostic imaging, DNA Mutational Analysis, Denmark, Family, Female, Humans, Male, Middle Aged, Pedigree, Phenotype, Spinocerebellar Ataxias diagnostic imaging, Frameshift Mutation, Protein Serine-Threonine Kinases genetics, Spinocerebellar Ataxias genetics
Abstract: Spinocerebellar ataxia type 11 (SCA11) is rare and has previously been described in four families worldwide. We report a Danish family with onset of symptoms in early childhood and affected family members in two generations. The proband, a Danish female born in 1968, and family members were examined. Exome sequencing was performed and a "movement disorders" gene panel consisting of approximately 200 genes was used for filtering, while Sanger sequencing was used for subsequent testing for the mutation in the family. Onset of symptoms in affected family members was in early childhood. A novel frameshift mutation (c.1205_1207delinsA) in the tau-tubulin kinase 2 encoding gene, TTBK2, was identified, which was compatible with a diagnosis of SCA11. The mutation was subsequently identified in her two affected sons but not in the unaffected parents or her unaffected brother. This report further delineates the phenotypic spectrum of the rare SCA11 disease. In contrast to previously reported cases, onset of symptoms was in early childhood and the mutation was de novo in the proband.
Published: 2017
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43. SCA28: Novel Mutation in the AFG3L2 Proteolytic Domain Causes a Mild Cerebellar Syndrome with Selective Type-1 Muscle Fiber Atrophy.

Author: Svenstrup K, Nielsen TT, Aidt F, Rostgaard N, Duno M, Wibrand F, Vinther-Jensen T, Law I, Vissing J, Roos P, Hjermind LE, and Nielsen JE
Subjects: ATPases Associated with Diverse Cellular Activities, Adult, Aged, Brain metabolism, Cerebellar Ataxia diagnostic imaging, Cerebellar Ataxia metabolism, Family, Female, Humans, Male, Middle Aged, Phenotype, Protein Domains, ATP-Dependent Proteases genetics, Brain diagnostic imaging, Cerebellar Ataxia genetics, Cerebellar Ataxia pathology, Muscle Fibers, Slow-Twitch pathology, Mutation, Missense
Abstract: The spinocerebellar ataxias (SCA) are a group of rare inherited neurodegenerative diseases characterized by slowly progressive cerebellar ataxia, resulting in unsteady gait, clumsiness, and dysarthria. The disorders are predominantly inherited in an autosomal dominant manner. Mutations in the gene AFG3L2 that encodes a subunit of the mitochondrial m-AAA protease have previously been shown to cause spinocerebellar ataxia type 28 (SCA28). Here, we present the clinical phenotypes of three patients from a family with autosomal dominant cerebellar ataxia and show by molecular genetics and in silico modelling that this is caused by a novel missense mutation in the AFG3L2 gene. Furthermore, we show, for the first time, fluorodeoxyglucose-positron emission tomography (FDG-PET) scans of the brain and selective type I fiber atrophy of skeletal muscle of SCA28 patients indicating non-nervous-system involvement in SCA28 as well.
Published: 2017
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44. Generation of a gene-corrected isogenic control hiPSC line derived from a familial Alzheimer's disease patient carrying a L150P mutation in presenilin 1.

Author: Poon A, Schmid B, Pires C, Nielsen TT, Hjermind LE, Nielsen JE, Holst B, Hyttel P, and Freude KK
Subjects: Alzheimer Disease genetics, Base Sequence, CRISPR-Cas Systems genetics, Cell Differentiation, Cell Line, Cellular Reprogramming, Fibroblasts cytology, Genotype, Humans, Induced Pluripotent Stem Cells metabolism, Karyotype, Male, Microscopy, Fluorescence, Phenotype, Polymorphism, Single Nucleotide, Sequence Analysis, DNA, Skin cytology, Transcription Factors genetics, Transcription Factors metabolism, Alzheimer Disease pathology, Induced Pluripotent Stem Cells cytology, Presenilin-1 genetics
Abstract: Mutations in the presenilin 1 (PSEN1) gene lead to the most aggressive form of familial Alzheimer's disease (AD). Human induced pluripotent stem cells (hiPSCs) derived from AD patients and subsequently differentiated can be used for disease modeling. We have previously generated a hiPSC line from a familial AD patient carrying a L150P point mutation in PSEN1. Here we used CRISPR/Cas9 gene editing to correct for the single base pair mutation. This gene-corrected line, L150P-GC-hiPSC, serves as an isogenic control to the mutant line for future investigation of mechanisms and cellular phenotypes altered by this specific PSEN1 mutation., (Copyright © 2016 Michael Boutros, German Cancer Research Center, Heidelberg, Germany. Published by Elsevier B.V. All rights reserved.)
Published: 2016
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45. Selected CSF biomarkers indicate no evidence of early neuroinflammation in Huntington disease.

Author: Vinther-Jensen T, Börnsen L, Budtz-Jørgensen E, Ammitzbøll C, Larsen IU, Hjermind LE, Sellebjerg F, and Nielsen JE
Abstract: Objective: To investigate CSF biomarkers of neuroinflammation and neurodegeneration in Huntington disease (HD) gene-expansion carriers compared to controls and to investigate these biomarkers in association with clinical HD rating scales and disease burden score., Methods: We collected CSF from 32 premanifest and 48 manifest HD gene-expansion carriers and 24 gene-expansion negative at-risk controls. We examined biomarkers of neuroinflammation (matrix metalloproteinase 9, C-X-C motif chemokine 13, terminal complement complex, chitinase-3-like-protein 1 [CHI3L1], and osteopontin [OPN]) and neurodegeneration (microtubule-associated protein tau, neurofilament light polypeptide [NFL], and myelin basic protein [MBP]). The study was approved by the Ethics Committee of the Capital Region of Denmark (H2-2011-085) and written informed consent was obtained from each participant before enrollment., Results: NFL was the only biomarker that increased in premanifest stages and no evidence of early involvement of neuroinflammation in HD was found. However, we found that the biomarkers for neurodegeneration, MBP and tau, increased during the disease course in manifest HD gene-expansion carriers and were associated with an increase of the neuroinflammation biomarkers CHI3L1 and OPN. Tau was also increased in all gene-expansion carriers with psychiatric symptoms compared to gene-expansion carriers without psychiatric symptoms., Conclusions: Neuroinflammation, which seems not to be an early event in our cohort, may be secondary to neurodegeneration in late HD. NFL is a possible disease burden correlate in HD, reflecting neuronal loss even before motor symptom onset, and may be useful as a dynamic biomarker in intervention studies.
Published: 2016
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46. Generation of a gene-corrected isogenic control cell line from an Alzheimer's disease patient iPSC line carrying a A79V mutation in PSEN1.

Author: Pires C, Schmid B, Petræus C, Poon A, Nimsanor N, Nielsen TT, Waldemar G, Hjermind LE, Nielsen JE, Hyttel P, and Freude KK
Subjects: Alzheimer Disease genetics, Alzheimer Disease metabolism, Base Sequence, CRISPR-Cas Systems genetics, Cells, Cultured, DNA Mutational Analysis, Female, Fibroblasts cytology, Genotype, Heterozygote, Humans, Induced Pluripotent Stem Cells metabolism, Karyotype, Microscopy, Fluorescence, Middle Aged, Polymorphism, Single Nucleotide, Transcription Factors genetics, Transcription Factors metabolism, Alzheimer Disease pathology, Cellular Reprogramming, Induced Pluripotent Stem Cells cytology, Presenilin-1 genetics
Abstract: Alzheimer's disease (AD) is a progressive and irreversible neurodegenerative disease causing neural cell degeneration and brain atrophy and is considered to be the most common form of dementia. We previously generated an induced pluripotent stem cell (iPSC) line from an AD patient carrying an A79V mutation in PSEN1 as an in vitro disease model. Here we generated a gene-corrected version from this hiPSC line by substituting the point mutation with the wild-type sequence. The reported A79V-GC-iPSCs line is a very useful resource in combination with the A79V-iPSC line in order to study pathological cellular phenotypes related to this particular mutation., (Copyright © 2016 Helmholtz Zentrum München. Published by Elsevier B.V. All rights reserved.)
Published: 2016
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47. A germline chromothripsis event stably segregating in 11 individuals through three generations.

Author: Bertelsen B, Nazaryan-Petersen L, Sun W, Mehrjouy MM, Xie G, Chen W, Hjermind LE, Taschner PE, and Tümer Z
Subjects: Abortion, Spontaneous physiopathology, Adolescent, Adult, Child, Congenital Abnormalities physiopathology, Female, Gene Rearrangement, Heterozygote, Humans, In Situ Hybridization, Fluorescence, Male, Sequence Analysis, DNA, Chromothripsis, Congenital Abnormalities genetics, Germ Cells cytology, Translocation, Genetic genetics
Abstract: Purpose: Parentally transmitted germ-line chromothripsis (G-CTH) has been identified in only a few cases. Most of these rearrangements were stably transmitted, in an unbalanced form, from a healthy mother to her child with congenital abnormalities probably caused by de novo copy-number changes of dosage sensitive genes. We describe a G-CTH transmitted through three generations in 11 healthy carriers., Methods: Conventional cytogenetic analysis, mate-pair sequencing, and polymerase chain reaction (PCR) were used to identify the chromosome rearrangement and characterize the breakpoints in all three generations., Results: We identified an apparently balanced translocation t(3;5), later shown to be a G-CTH, in all individuals of a three-generation family. The G-CTH stably segregated without occurrence of additional rearrangements; however, several spontaneous abortions were reported, possibly due to unbalanced transmission. Although seven protein-coding genes are interrupted, no clinical features can be definitively attributed to the affected genes. However, it can be speculated that truncation of one of these genes, encoding ataxia-telangiectasia and Rad3-related protein kinase (ATR), a key component of the DNA damage response, may be related to G-CTH formation., Conclusion: G-CTH rearrangements are not always associated with abnormal phenotypes and may be misinterpreted as balanced two-way translocations, suggesting that G-CTH is an underdiagnosed phenomenon.Genet Med 18 5, 494-500.
Published: 2016
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48. Liver function in Huntington's disease assessed by blood biochemical analyses in a clinical setting.

Author: Nielsen SM, Vinther-Jensen T, Nielsen JE, Nørremølle A, Hasholt L, Hjermind LE, and Josefsen K
Subjects: Adolescent, Adult, C-Reactive Protein, Cognition Disorders etiology, Cohort Studies, Female, Humans, Huntington Disease genetics, Liver Diseases genetics, Liver Function Tests, Male, Middle Aged, Statistics, Nonparametric, Young Adult, gamma-Glutamyltransferase blood, Huntington Disease blood, Huntington Disease complications, Liver Diseases etiology, Trinucleotide Repeats genetics
Abstract: Huntington's disease (HD) is a dominantly inherited, progressive neurological disorder caused by a CAG repeat elongation in the huntingtin gene. In addition to motor-, psychiatric- and cognitive dysfunction, peripheral disease manifestations in the form of metabolic changes and cellular dysfunction are seen. Blood levels of a wide range of hormones, metabolites and proteins have been analyzed in HD patients, identifying several changes associated with the disease. However, a comprehensive panel of liver function tests (LFT) has not been performed. We investigated a cohort of manifest and premanifest HD gene-expansion carriers and controls, using a clinically applied panel of LFTs. Here, we demonstrate that the level of alkaline phosphatase is increased in manifest HD gene-expansion carriers compared to premanifest HD gene-expansion carriers and correlate with increased disease severity indicated by the Unified Huntington's disease rating scale-Total Functional Capacity Score (UHDRS-TFC). For gamma-glutamyl transferase, elevated levels were more frequent in the manifest groups than in both the HD gene-expansion negative controls and premanifest HD gene-expansion carriers. Finally, the manifest HD gene-expansion carriers displayed moderate increases in total cholesterol and blood glucose relative to the premanifest HD gene-expansion carriers, as well as increased C-reactive protein relative to HD gene-expansion negative controls. Our results show that LFT values are elevated more frequently in manifest compared to premanifest HD gene-expansion carriers and controls. The majority of the manifest HD gene-expansion carriers receive medication, and it is possible that this can influence the liver function tests performed in this study., (Copyright © 2016 Elsevier B.V. All rights reserved.)
Published: 2016
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49. Generation of induced pluripotent stem cells (iPSCs) from an Alzheimer's disease patient carrying an A79V mutation in PSEN1.

Author: Li T, Pires C, Nielsen TT, Waldemar G, Hjermind LE, Nielsen JE, Dinnyes A, Hyttel P, and Freude KK
Subjects: Alzheimer Disease genetics, Base Sequence, Cell Differentiation, Cells, Cultured, Cellular Reprogramming, Exons, Female, Fibroblasts cytology, Humans, Induced Pluripotent Stem Cells metabolism, Karyotype, Microscopy, Fluorescence, Middle Aged, Polymorphism, Single Nucleotide, Presenilin-1 genetics, Real-Time Polymerase Chain Reaction, Transcription Factors genetics, Transcription Factors metabolism, Alzheimer Disease pathology, Induced Pluripotent Stem Cells cytology
Abstract: Skin fibroblasts were obtained from a 48-year-old presymptomatic woman carrying a A79V mutation in the presenilin 1 gene (PSEN1), causing Alzheimer's disease (AD). Induced pluripotent stem cell (iPSCs) were derived via transfection with episomal vectors carrying hOCT4, hSOX2, hKLF2, hL-MYC, hLIN28 and shTP53 genes. A79V-iPSCs were free of genomically integrated reprogramming genes, had the specific mutation but no additional genomic aberrancies, expressed the expected pluripotency markers and displayed in vitro differentiation potential to the three germ layers. The reported A79V-iPSCs line may be a useful resource for in vitro modeling of familial AD., (Copyright © 2016 University of Texas at Austin Dell Medical School. Published by Elsevier B.V. All rights reserved.)
Published: 2016
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50. Generation of induced pluripotent stem cells (iPSCs) from an Alzheimer's disease patient carrying a M146I mutation in PSEN1.

Author: Li T, Pires C, Nielsen TT, Waldemar G, Hjermind LE, Nielsen JE, Dinnyes A, Holst B, Hyttel P, and Freude KK
Subjects: Alzheimer Disease genetics, Cell Differentiation, Cells, Cultured, Cellular Reprogramming, Embryoid Bodies cytology, Exons, Humans, Induced Pluripotent Stem Cells metabolism, Karyotype, Male, Microscopy, Fluorescence, Middle Aged, Polymorphism, Single Nucleotide, Real-Time Polymerase Chain Reaction, Sequence Analysis, DNA, Transcription Factors genetics, Transcription Factors metabolism, Alzheimer Disease pathology, Induced Pluripotent Stem Cells cytology, Presenilin-1 genetics
Abstract: Skin fibroblasts were obtained from a 46-year-old symptomatic man carrying a M146I mutation in the presenilin 1 gene (PSEN1), responsible for causing Alzheimer's disease (AD). Induced pluripotent stem cells (iPSCs) were derived via transfection with episomal vectors carrying hOCT4, hSOX2, hKLF2, hL-MYC, hLIN28 and shTP53 genes. M146I-iPSCs were free of genomically integrated reprogramming genes, had the specific mutation but no additional genomic aberrancies, expressed the expected pluripotency markers and displayed in vitro differentiation potential to the three germ layers. The reported M146I-iPSCs line may be a useful resource for in vitro modeling of familial AD., (Copyright © 2016 University of Texas at Austin Dell Medical School. Published by Elsevier B.V. All rights reserved.)
Published: 2016
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