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3. No radiative generation of Chern-Simons-like term in Lorentz-violating QED: dealing with IR divergences

Author

Del Cima, O. M., Franco, D. H. T., and Piguet, O.

Subjects
High Energy Physics - Theory, High Energy Physics - Phenomenology, Mathematical Physics, Quantum Physics
Abstract

The issue intensively claimed in the literature on the generation of a CPT-odd and Lorentz violating Chern-Simons-like term by radiative corrections owing to a CPT violating interaction -- the axial coupling of fermions with a constant vector field $b_\m$ -- is mistaken. The presence of massless gauge field triggers IR divergences that might show up from the UV subtractions, therefore, so as to deal with the (actual physical) IR divergences, the Lowenstein-Zimmermann subtraction scheme, in the framework of BPHZL renormalization method, has to be adopted. The proof on the non generation of such a Chern-Simons-like term is done, independent of any kind of regularization scheme, at all orders in perturbation theory., Comment: In honor of Prof. Manfred Schweda (1939-2017). Work presented at the XXXVIII National Meeting on Particle Physics and Fields, September 18-22, 2017 - Passa Quatro - Minas Gerais - Brazil. Reference [46] corrected

Published
2017
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4. Protein network analysis reveals selectively vulnerable regions and biological processes in FTD

Author

Bonham, Luke W, Steele, Natasha ZR, Karch, Celeste M, Manzoni, Claudia, Geier, Ethan G, Wen, Natalie, Ofori-Kuragu, Aaron, Momeni, Parastoo, Hardy, John, Miller, Zachary A, Hess, Christopher P, Lewis, Patrick, Miller, Bruce L, Seeley, William W, Baranzini, Sergio E, Desikan, Rahul S, Ferrari, Raffaele, Yokoyama, Jennifer S, 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, 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, Waldö, M Landqvist, Nilsson, K, Nilsson, C, Mackenzie, IRA, Hsiung, G-YR, Mann, D, 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, and Golfier, V

Subjects
Biological Sciences, Bioinformatics and Computational Biology, Genetics, Aging, Alzheimer's Disease including Alzheimer's Disease Related Dementias (AD/ADRD), Alzheimer's Disease Related Dementias (ADRD), Frontotemporal Dementia (FTD), Acquired Cognitive Impairment, Dementia, Biotechnology, Neurodegenerative, Rare Diseases, Neurosciences, Brain Disorders, Human Genome, Aetiology, 2.1 Biological and endogenous factors, Neurological, International FTD-Genomics Consortium, Clinical sciences
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

5. Examining the propensity and nature of criminal risk behaviours in frontotemporal dementia syndromes and Alzheimer's disease.

Author

Kumfor, F, Wei, G, Ries, N, Bennett, H, D'Mello, M, Kaizik, C, Piguet, O, Hodges, JR, Kumfor, F, Wei, G, Ries, N, Bennett, H, D'Mello, M, Kaizik, C, Piguet, O, and Hodges, JR

Abstract

INTRODUCTION: Some people with dementia develop changes in behaviour and cognition that may lead to interactions with police or the legal system. However, large, prospective case-control studies examining these behaviours are lacking. METHODS: One hundred and forty-four people with dementia and 53 controls completed the Misdemeanours and Transgressions Screener. RESULTS: Criminal risk behaviours were reported in: 65.6% of behavioural-variant frontotemporal dementia, 46.2% of right-lateralised semantic dementia, and 27.0% of Alzheimer's disease patients. In 19.1% of patients these behaviours led to contact with police or authority figures. Compared to controls, people with dementia showed higher rates of physical assault (p = 0.024), financial/professional recklessness (p = 0.009), and inappropriate behaviours (p = 0.052). DISCUSSION: Criminal risk behaviours are common across dementia subtypes and may be one of the first clinical signs of frontotemporal dementia. Further research to understand how to balance risk minimisation with an individual's liberties as well as the inappropriate criminalisation of people with dementia is needed. HIGHLIGHTS: The Misdemeanours and Transgressions Screener is a new tool to assess criminal risk behaviours.Forty-seven percent of patients with dementia show criminal risk behaviour after dementia onset.Behaviours included verbal abuse, traffic violations, physical assault.New onset of criminal risk behaviours >50 years is a clinical sign for frontotemporal dementia.

Published
2024

6. The ultraviolet and infrared perturbative finiteness of massless QED$_3$

Author

Del Cima, O. M., Franco, D. H. T., and Piguet, O.

Subjects
High Energy Physics - Theory, Mathematical Physics, Quantum Physics
Abstract

The massless QED$_3$ is ultraviolet and infrared perturbatively finite, parity and infrared anomaly free to all orders in perturbation theory., Comment: 4 pages, minor changes, to appear in Phys. Rev. D

Published
2013
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7. All orders renormalizability of a Lorentz and CPT violating quantum electrodynamics

Author

Del Cima, O. M., Fonseca, J. M., Franco, D. H. T., Gomes, A. H., and Piguet, O.

Subjects
High Energy Physics - Theory, High Energy Physics - Phenomenology, Mathematical Physics
Abstract

Renormalizability of the (minimal) single-fermion QED extension is investigated at all orders of perturbation theory in the framework of algebraic renormalization, a regularization-independent method. Relative to the standard QED, new structures that could lead to gauge anomalies are identified. Nevertheless, even if the anomaly coefficients fail to vanish in the general case, they shall be absent provided we require invariance of the action under C and/or PT transformations. Stability is also verified in this case, hence full renormalizability is attained., Comment: 7 pages

Published
2012
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8. On 1+1 Dimensional Galilean Supersymmetry in Ultracold Quantum Gases

Author

Lozano, G. S., Piguet, O., Schaposnik, F. A., and Sourrouille, L.

Subjects
Condensed Matter - Other Condensed Matter, High Energy Physics - Theory
Abstract

We discuss a 1+1 dimensional Galilean invariant model recently introduced in connection with ultracold quantum gases. After showing its relation to a nonrelativistic 2+1 Chern-Simons matter system, we identify the generators of the supersymmetry and its relation with the existence of self-dual equations, Comment: 12 pages

Published
2006
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9. Observables in Topological Theories: A Superspace Formulation

Author

Boldo, J. L., Constantinidis, C. P., Gieres, F., Lefrançois, M., and Piguet, O.

Subjects
High Energy Physics - Theory
Abstract

Observables of topological Yang-Mills theory were defined by Witten as the classes of an equivariant cohomology. We propose to define them alternatively as the BRST cohomology classes of a superspace version of the theory, where BRST invariance is associated to super Yang-Mills invariance. We provide and discuss the general solution of this cohomology., Comment: Prepared for International Conference on Renormalization Group and Anomalies in Gravity and Cosmology (IRGA 2003), Ouro Preto, MG, Brazil, 17-23 Mar 2003

Published
2004
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10. Symmetries and observables in topological gravity

Author

Constantinidis, C. P., Deandrea, A., Gieres, F., Lefrancois, M., and Piguet, O.

Subjects
General Relativity and Quantum Cosmology, High Energy Physics - Theory
Abstract

After a brief review of topological gravity, we present a superspace approach to this theory. This formulation allows us to recover in a natural manner various known results and to gain some insight into the precise relationship between different approaches to topological gravity. Though the main focus of our work is on the vielbein formalism, we also discuss the metric approach and its relationship with the former formalism., Comment: 34 pages; a few explanations added in subsection 2.2.1, published version of paper

Published
2004
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11. On the symmetries of BF models and their relation with gravity

Author

Constantinidis, C. P., Gieres, F., Piguet, O., and Sarandy, M. S.

Subjects
High Energy Physics - Theory
Abstract

The perturbative finiteness of various topological models (e.g. BF models) has its origin in an extra symmetry of the gauge-fixed action, the so-called vector supersymmetry. Since an invariance of this type also exists for gravity and since gravity is closely related to certain BF models, vector supersymmetry should also be useful for tackling various aspects of quantum gravity. With this motivation and goal in mind, we first extend vector supersymmetry of BF models to generic manifolds by incorporating it into the BRST symmetry within the Batalin-Vilkovisky framework. Thereafter, we address the relationship between gravity and BF models, in particular for three-dimensional space-time., Comment: 29 pages

Published
2001
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12. Comment on 'On spin-1 massive particles coupled to a Chern-Simons field'

Author

Del Cima, O. M., Franco, D. H. T., Helayel-Neto, J. A., and Piguet, O.

Subjects
High Energy Physics - Theory, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology, Mathematical Physics
Abstract

In this comment we discuss some serious inconsistencies presented by Gomes, Malacarne and da Silva in their paper, Phys.Rev. D60 (1999) 125016 (hep-th/9908181)., Comment: 2 pages, RevTex, no figures

Published
1999

13. An algebraic proof on the finiteness of Yang-Mills-Chern-Simons theory in D=3

Author

Del Cima, O. M., Franco, D. H. T., Helayel-Neto, J. A., and Piguet, O.

Subjects
Mathematical Physics, 81T13, 81T15, 81T17, 81T20
Abstract

A rigorous algebraic proof of the full finiteness in all orders of perturbation theory is given for the Yang-Mills-Chern-Simons theory in a general three-dimensional Riemannian manifold. We show the validity of a trace identity, playing the role of a local form of the Callan-Symanzik equation, in all loop orders, which yields the vanishing of the beta-functions associated to the topological mass and gauge coupling constant as well as the anomalous dimensions of the fields., Comment: 5 pages, revtex

Published
1999
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14. Renormalization of the N=1 Abelian Super-Chern-Simons Theory Coupled to Parity-Preserving Matter

Author

Colatto, L. P., De Andrade, M. A., Del Cima, O. M., Franco, D. H. T., Helayel-Neto, J. A., and Piguet, O.

Subjects
High Energy Physics - Theory
Abstract

We analyse the renormalizability of an Abelian N=1 super-Chern-Simons model coupled to parity-preserving matter on the light of the regularization independent algebraic method. The model shows to be stable under radiative corrections and to be gauge anomaly free., Comment: Latex, 7 pages, no figures

Published
1997
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15. Algebraic Renormalization of Parity-Preserving QED_3 Coupled to Scalar Matter II: Broken Case

Author

Del Cima, O. M., Franco, D. H. T., Helayël-Neto, J. A., and Piguet, O.

Subjects
High Energy Physics - Theory
Abstract

In this letter the algebraic renormalization method, which is independent of any kind of regularization scheme, is presented for the parity-preserving QED_3 coupled to scalar matter in the broken regime, where the scalar assumes a finite vacuum expectation value, $<\vf> = v$. The model shows to be stable under radiative corrections and anomaly free., Comment: 9 pages, latex, no figures

Published
1996
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16. Algebraic Renormalization of Parity-Preserving QED_3 Coupled to Scalar Matter I: Unbroken Case

Author

Del Cima, O. M., Franco, D. H. T., Helayël-Neto, J. A., and Piguet, O.

Subjects
High Energy Physics - Theory
Abstract

In this letter the algebraic renormalization method, which is independent of any kind of regularization scheme, is presented for the parity-preserving QED_3 coupled to scalar matter in the symmetric regime, where the scalar assumes vanishing vacuum expectation value, $<\phi>=0$. The model shows to be stable under radiative corrections and anomaly free., Comment: 9 pages, latex, no figures

Published
1996
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17. Five-Dimensional BF Theory and Four-Dimensional Current Algebra

Author

Emery, S., Jirari, H., and Piguet, O.

Subjects
High Energy Physics - Theory
Abstract

We consider the relation between the five-dimensional BF model and a four-dimensional local current algebra from the point of view of perturbative local quantum field theory. We use an axial gauge fixing procedure and show that it allows for a well defined theory which actually can be solved exactly., Comment: 15 pages LaTeX file +3 Figures in TexDraw (available from hep-th) LATEX-compatibility Bug fixed

Published
1995

18. A Renormalized Supersymmetry in the Topological Yang-Mills Field Theory

Author

Brandhuber, A., Moritsch, O., de Oliveira, M. W., Piguet, O., and Schweda, M.

Subjects
High Energy Physics - Theory
Abstract

We reconsider the algebraic BRS renormalization of Witten's topological Yang-Mills field theory by making use of a vector supersymmetry Ward identity which improves the finiteness properties of the model. The vector supersymmetric structure is a common feature of several topological theories. The most general local counterterm is determined and is shown to be a trivial BRS-coboundary., Comment: 18 pages, report REF. TUW 94-10 and UGVA-DPT 1994/07-858

Published
1994
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19. Symmetries of the Chern-Simons Theory in the Axial Gauge, Manifold with Boundary

Author

Emery, S. and Piguet, O.

Subjects
High Energy Physics - Theory
Abstract

The field equations of the Chern-Simons theory quantized in the axial gauge are shown to be completely determined by supersymmetry Ward identities which express the invariance of the theory under the topological supersymmetry of Delduc, Gieres and Sorella together with the usual Slavnov identity without requiring any action principle., Comment: 8 pages LaTeX, report UGVA-DPT 1994/01-843

Published
1994

20. Symmetries of the Chern-Simons Theory in the Axial Gauge

Author

Brandhuber, A., Emery, S., Langer, M., Piguet, O., Schweda, M., and Sorella, S. P.

Subjects
High Energy Physics - Theory
Abstract

The Green functions of the Chern-Simons theory quantized in the axial gauge are shown to be calculable as the unique, exact solution of the Ward identities which express the invariance of the theory under the topological supersymmetry of Delduc, Gieres and Sorella., Comment: 16 pages, report UGVA-DPT 1993/05-817, TUW 93-10

Published
1993

21. Adler-Bardeen theorem and vanishing of the gauge beta function

Author

Piguet, O. and Sorella, S. P.

Subjects
High Energy Physics - Theory
Abstract

The proof of the non-renormalization theorem for the gauge anomaly of four-dimensional theories is extended to the case of models with a vanishing one-loop gauge beta function., Comment: 11p., UGVA-DPT 1992/07-774, to be publ. in Nucl. Phys. B

Published
1993
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23. Renormalization and finiteness of topological BF theories

Author

Lucchesi, C., Piguet, O., and Sorella, S. P.

Subjects
High Energy Physics - Theory
Abstract

We show that the BF theory in any space-time dimension, when quantized in a certain linear covariant gauge, possesses a vector supersymmetry. The generator of the latter together with those of the BRS transformations and of the translations form the basis of a superalgebra of the Wess-Zumino type. We give a general classification of all possible anomalies and invariant counterterms. Their absence, which amounts to ultraviolet finiteness, follows from purely algebraic arguments in the lower-dimensional cases., Comment: 27 p., Latex file

Published
1992
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26. Utility of the Addenbrooke’s Cognitive Examination III online calculator to differentiate the primary progressive aphasia variants

Author

Foxe, D, primary, Hu, A, additional, Cheung, S C, additional, Ahmed, R M, additional, Cordato, N J, additional, Devenney, E, additional, Hwang, Y T, additional, Halliday, G M, additional, Mueller, N, additional, Leyton, C E, additional, Hodges, J R, additional, Burrell, J R, additional, Irish, M, additional, and Piguet, O, additional

Published
2022
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27. The diagnostic value of language screening in primary progressive aphasia: Validation and application of the Sydney Language Battery (SYDBAT)

Author

Janssen, N., Roelofs, A.P.A., Berg, E. van den, Eikelboom, W.S., Holleman, M.A., Braek, D.M.J.M. in de, Piguet, O., Piai, V., Kessels, R.P.C., Janssen, N., Roelofs, A.P.A., Berg, E. van den, Eikelboom, W.S., Holleman, M.A., Braek, D.M.J.M. in de, Piguet, O., Piai, V., and Kessels, R.P.C.

Abstract

Item does not contain fulltext, Purpose: The three variants of primary progressive aphasia (PPA) differ in clinical presentation, underlying brain pathology, and clinical course, which stresses the need for early differentiation. However, brief cognitive tests that validly distinguish between all PPA variants are lacking. The Sydney Language Battery (SYDBAT) is a promising screening instrument that can be used as a first step in a comprehensive neuropsychological assessment to distinguish PPA subtypes, but evidence on its validity and reliability is to date limited. In the current study, the validation and diagnostic value of the SYDBAT are described for discriminating PPA subtypes as well as distinguishing PPA from mild cognitive impairment (MCI) or Alzheimer's dementia (AD). Method: Forty-five patients with PPA (13 with semantic PPA, 20 with logopenic PPA, and 12 with nonfluent/agrammatic PPA), 25 MCI patients, 13 AD patients, and 50 cognitively unimpaired controls were included in this study. Both patients and controls completed the SYDBAT-NL (Dutch version). Performance on and predictive ability of the four subtests (i.e., Naming, Word Comprehension, Repetition, and Semantic Association) were assessed. In addition, construct validity and internal consistency were examined. Results: Different SYDBAT performance patterns were found across PPA and non-PPA patient groups. While a discriminant function analysis based on SYDBAT subtest scores could predict PPA subtype with 78% accuracy, it was more difficult to disentangle PPA from non-PPA patients based on SYDBAT scores alone. For assisting in clinical interpretation, simple rules were set up and translated into a diagnostic decision tree for subtyping PPA, which was capable of diagnosing a large proportion of the cases. Satisfying validity and reliability measures were found. Conclusions: The SYDBAT is an easy-to-use and promising screen for assessing single-word language processes, which may contribute to the differential diagnostic process of PP

Published
2022

28. Genetic architecture of sporadic frontotemporal dementia and overlap with Alzheimerʼs and Parkinsonʼs diseases

Author

Ferrari, Raffaele, Wang, Yunpeng, Vandrovcova, Jana, Guelfi, Sebastian, Witeolar, Aree, Karch, Celeste M, Schork, Andrew J, Fan, Chun C, Brewer, James B, Momeni, Parastoo, Schellenberg, Gerard D, Dillon, William P, Sugrue, Leo P, Hess, Christopher P, Yokoyama, Jennifer S, Bonham, Luke W, Rabinovici, Gil D, Miller, Bruce L, Andreassen, Ole A, Dale, Anders M, Hardy, John, Desikan, Rahul S, Hernandez, D G, Nalls, M A, Rohrer, J D, Ramasamy, A, Kwok, J B J, Dobson-Stone, C, Schofield, P R, Halliday, G M, Hodges, J R, Piguet, O, Bartley, L, Thompson, E, Haan, E, Hernández, I, Ruiz, A, Boada, M, Borroni, B, Padovani, A, Cruchaga, C, Cairns, N J, 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, K, Nilsson, C, Mackenzie, I R A, Hsiung, G-Y R, Mann, D M A, Grafman, J, Morris, C M, Attems, J, Griffiths, T D, McKeith, I G, Thomas, A J, Pietrini, P, Huey, E D, Wassermann, E M, Baborie, A, Jaros, E, Tierney, M C, 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, J B, Schlachetzki, J C M, Uphill, J, Collinge, J, Mead, S, Danek, A, Van Deerlin, V M, Grossman, M, Trojanowski, J Q, van der Zee, J, Cruts, M, Van Broeckhoven, C, Cappa, S F, Leber, I, Hannequin, D, Golfier, V, Vercelletto, M, Brice, A, Nacmias, B, Sorbi, S, Bagnoli, S, Piaceri, I, Nielsen, J E, Hjermind, L E, Riemenschneider, M, Mayhaus, M, Ibach, B, Gasparoni, G, Pichler, S, Gu, W, Rossor, M N, Fox, N C, Warren, J D, Spillantini, M G, Morris, H R, Rizzu, P, Heutink, P, Snowden, J S, Rollinson, S, Richardson, A, Gerhard, A, Bruni, A C, Maletta, R, Frangipane, F, Cupidi, C, Bernardi, L, Anfossi, M, Gallo, M, Conidi, M E, Smirne, N, Rademakers, R, Baker, M, Dickson, D W, Graff-Radford, N R, Petersen, R C, Knopman, D, Josephs, K A, Boeve, B F, Parisi, J E, Seeley, W W, Karydas, A M, Rosen, H, van Swieten, J C, Dopper, E G P, Seelaar, H, Pijnenburg, Y A L, Scheltens, P, Logroscino, G, Capozzo, R, Novelli, V, Puca, A A, Franceschi, M, Postiglione, A, Milan, G, Sorrentino, P, Kristiansen, M, Chiang, H-H, Graff, C, Pasquier, F, Rollin, A, Deramecourt, V, Lebouvier, T, Kapogiannis, D, Ferrucci, L, Pickering-Brown, S, and Singleton, A B

Published
2017
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33. 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

36. The Box Task: A novel tool to differentiate the primary progressive aphasias

Author

Foxe, D.G., Irish, M., D'Mello, M., Barhon, L., Burrell, J.R., Kessels, R.P.C., Piguet, O., Foxe, D.G., Irish, M., D'Mello, M., Barhon, L., Burrell, J.R., Kessels, R.P.C., and Piguet, O.

Abstract

Item does not contain fulltext, Objective: Differentiating the primary progressive aphasia (PPA) variants in clinical settings remains complex and challenging, especially for the logopenic (lv-PPA) and non-fluent variants (nfv-PPA). Recent studies suggest that visuospatial memory is more compromised in lv-PPA than in nfv-PPA and is relatively spared in the semantic variant (sv-PPA). Accordingly, assessment of visuospatial memory performance may assist in the differential diagnosis of PPA variants. Here, we investigated the utility of a novel computerised visuospatial working memory test - the Box Task - to differentiate the three PPA variants and typical Alzheimer's disease (AD). Methods: Eighteen lv-PPA, 14 nfv-PPA, 23 sv-PPA, 33 AD patients, and 32 healthy controls matched for age and education were recruited. All participants completed the computerised Box Task and WMS-III Spatial Span as measures of visuospatial working memory. Results: The lv-PPA group made significantly more Box Task between-search errors than nfv-PPA, sv-PPA and control groups. The AD group, however, displayed the greatest impairments on this measure relative to the PPA variants. Logistic regression analyses in lv-PPA and nfv-PPA demonstrated that the combination of Box Task between-search error variables (i.e., 4- and 6-box levels) could correctly classify 72% of lv-PPA patients and nearly 79% of nfv-PPA patients. Area under the receiver operator characteristics curve (AUC) analyses revealed the Box Task was more sensitive than Spatial Span at differentiating lv-PPA from nfv-PPA. Conclusions: Our findings suggest that a simple, computerised measure of visuospatial working memory - the Box Task - shows potential diagnostic utility in differentiating lv-PPA from the other PPA variants.

Published
2021

37. Correction to:A nonsynonymous mutation in PLCG2 reduces the risk of Alzheimer’s disease, dementia with Lewy bodies and frontotemporal dementia, and increases the likelihood of longevity (Acta Neuropathologica, (2019), 138, 2, (237-250), 10.1007/s00401-019-02026-8)

Author

van der Lee, Sven J., Conway, Olivia J., Jansen, Iris, Carrasquillo, Minerva M., Kleineidam, Luca, van den Akker, Erik, Hernández, Isabel, van Eijk, Kristel R., Stringa, Najada, Chen, Jason A., Zettergren, Anna, Andlauer, Till F.M., Diez-Fairen, Monica, Simon-Sanchez, Javier, Lleó, Alberto, Zetterberg, Henrik, Nygaard, Marianne, Blauwendraat, Cornelis, Savage, Jeanne E., Mengel-From, Jonas, Moreno-Grau, Sonia, Wagner, Michael, Fortea, Juan, Keogh, Michael J., Blennow, Kaj, Skoog, Ingmar, Friese, Manuel A., Pletnikova, Olga, Zulaica, Miren, Lage, Carmen, de Rojas, Itziar, Riedel-Heller, Steffi, Illán-Gala, Ignacio, Wei, Wei, Jeune, Bernard, Orellana, Adelina, Then Bergh, Florian, Wang, Xue, Hulsman, Marc, Beker, Nina, Tesi, Niccolo, Morris, Christopher M., Indakoetxea, Begoña, Collij, Lyduine E., Scherer, Martin, Morenas-Rodríguez, Estrella, Ironside, James W., van Berckel, Bart N.M., Alcolea, Daniel, Wiendl, Heinz, Strickland, Samantha L., Pastor, Pau, Rodríguez Rodríguez, Eloy, Mead, S., Synofzik, M., van Swieten, J. C., Leber, I., Ferrari, R., Hernandez, D. G., Nalls, M. A., Rohrer, J. D., Ramasamy, A., Kwok, J. B.J., Dobson-Stone, C., Schofield, P. R., Halliday, G. M., Hodges, J. R., Piguet, O., Bartley, L., Thompson, E., Borroni, B., Padovani, A., Cruchaga, C., Cairns, N. J., Benussi, L., Binetti, G., Ghidoni, R., Forloni, G., Albani, D., Galimberti, D., Fenoglio, C., Serpente, M., Scarpini, E., Blesa, R., Landqvist Waldö, M., Nilsson, K., Nilsson, C., Mackenzie, I. R.A., Hsiung, G. Y.R., Mann, D. M.A., Grafman, J., Morris, C. M., Attems, J., Griffiths, T. D., McKeith, I. G., Thomas, A. J., Pietrini, P., Huey, E. D., Wassermann, E. M., Baborie, A., Jaros, E., Tierney, M. C., 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, J. B., Schlachetzki, J. C.M., Uphill, J., Collinge, J., Danek, A., Van Deerlin, V. M., Grossman, M., Trojanowski, J. Q., van der Zee, J., Van Broeckhoven, C., Cappa, S. F., Hannequin, D., Golfier, V., Vercelletto, M., Brice, A., Nacmias, B., Sorbi, S., Bagnoli, S., Piaceri, I., Nielsen, J. E., Hjermind, L. E., Riemenschneider, M., Mayhaus, M., Ibach, B., Gasparoni, G., Pichler, S., Gu, W., Rossor, M. N., Fox, N. C., Warren, J. D., Spillantini, M. G., Morris, H. R., Rizzu, P., Snowden, J. S., Rollinson, S., Richardson, A., Gerhard, A., Bruni, A. C., Maletta, R., Frangipane, F., Cupidi, C., Bernardi, L., Anfossi, M., Gallo, M., Conidi, M. E., Smirne, N., Baker, M., Josephs, K. A., Parisi, J. E., Seeley, W. W., Miller, B. L., Karydas, A. M., Rosen, H., Dopper, E. G.P., Seelaar, H., Logroscino, G., Capozzo, R., Novelli, V., Puca, A. A., Franceschi, M., Postiglione, A., Milan, G., Sorrentino, P., Kristiansen, M., Chiang, H. H., Graff, C., Pasquier, F., Rollin, A., Deramecourt, V., Lebouvier, T., Kapogiannis, D., Ferrucci, L., Pickering-Brown, S., Singleton, A. B., Hardy, J., Momeni, P., Boeve, Bradley F., Petersen, Ronald C., Ferman, Tanis J., van Gerpen, Jay A., Reinders, Marcel J.T., Uitti, Ryan J., Tárraga, Lluís, Maier, Wolfgang, Dols-Icardo, Oriol, Kawalia, Amit, Dalmasso, Maria Carolina, Boada, Mercè, Zettl, Uwe K., van Schoor, Natasja M., Beekman, Marian, Allen, Mariet, Masliah, Eliezer, de Munain, Adolfo López, Pantelyat, Alexander, Wszolek, Zbigniew K., Ross, Owen A., Dickson, Dennis W., Graff-Radford, Neill R., Knopman, David, Rademakers, Rosa, Lemstra, Afina W., Pijnenburg, Yolande A.L., Scheltens, Philip, Gasser, Thomas, Chinnery, Patrick F., Hemmer, Bernhard, Huisman, Martijn A., Troncoso, Juan, Moreno, Fermin, Nohr, Ellen A., Sørensen, Thorkild I.A., Heutink, Peter, Sánchez-Juan, Pascual, Posthuma, Danielle, Coppola, G., Varpetian, A., Foroud, T. M., Levey, A. I., Kukull, W. A., Mendez, M. F., Ringman, J., Chui, H., Cotman, C., DeCarli, C., Geschwind, D. H., Clarimón, Jordi, Christensen, Kaare, Ertekin-Taner, Nilüfer, Scholz, Sonja W., Ramirez, Alfredo, Ruiz, Agustín, Slagboom, Eline, van der Flier, Wiesje M., and Holstege, Henne

Abstract

The IPDGC (The International Parkinson Disease Genomics Consortium) and EADB (Alzheimer Disease European DNA biobank) are listed correctly as an author to the article, however, they were incorrectly listed more than once.

Published
2020

38. Correction to: A nonsynonymous mutation in PLCG2 reduces the risk of Alzheimer’s disease, dementia with Lewy bodies and frontotemporal dementia, and increases the likelihood of longevity (Acta Neuropathologica, (2019), 138, 2, (237-250), 10.1007/s00401-019-02026-8)

Author

van der Lee, S. J., Conway, O. J., Jansen, I., Carrasquillo, M. M., Kleineidam, L., van den Akker, E., Hernandez, I., van Eijk, K. R., Stringa, N., Chen, J. A., Zettergren, A., Andlauer, T. F. M., Diez-Fairen, M., Simon-Sanchez, J., Lleo, A., Zetterberg, H., Nygaard, M., Blauwendraat, C., Savage, J. E., Mengel-From, J., Moreno-Grau, S., Wagner, M., Fortea, J., Keogh, M. J., Blennow, K., Skoog, I., Friese, M. A., Pletnikova, O., Zulaica, M., Lage, C., de Rojas, I., Riedel-Heller, S., Illan-Gala, I., Wei, W., Jeune, B., Orellana, A., Then Bergh, F., Wang, X., Hulsman, M., Beker, N., Tesi, N., Morris, C. M., Indakoetxea, B., Collij, L. E., Scherer, M., Morenas-Rodriguez, E., Ironside, J. W., van Berckel, B. N. M., Alcolea, D., Wiendl, H., Strickland, S. L., Pastor, P., Rodriguez Rodriguez, E., Mead, S., Synofzik, M., van Swieten, J. C., Leber, I., Ferrari, R., Hernandez, D. G., Nalls, M. A., Rohrer, J. D., Ramasamy, A., Kwok, J. B. J., Dobson-Stone, C., Schofield, P. R., Halliday, G. M., Hodges, J. R., Piguet, O., Bartley, L., Thompson, E., Borroni, B., Padovani, A., Cruchaga, C., Cairns, N. J., Benussi, L., Binetti, G., Ghidoni, R., Forloni, G., Albani, D., Galimberti, D., Fenoglio, C., Serpente, M., Scarpini, E., Blesa, R., Landqvist Waldo, M., Nilsson, K., Nilsson, C., Mackenzie, I. R. A., Hsiung, G. -Y. R., Mann, D. M. A., Grafman, J., Attems, J., Griffiths, T. D., Mckeith, I. G., Thomas, A. J., Pietrini, P., Huey, E. D., Wassermann, E. M., Baborie, A., Jaros, E., Tierney, M. C., 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, J. B., Schlachetzki, J. C. M., Uphill, J., Collinge, J., Danek, A., Van Deerlin, V. M., Grossman, M., Trojanowski, J. Q., van der Zee, J., Van Broeckhoven, C., Cappa, S. F., Hannequin, D., Golfier, V., Vercelletto, M., Brice, A., Nacmias, B., Sorbi, S., Bagnoli, S., Piaceri, I., Nielsen, J. E., Hjermind, L. E., Riemenschneider, M., Mayhaus, M., Ibach, B., Gasparoni, G., Pichler, S., Gu, W., Rossor, M. N., Fox, N. C., Warren, J. D., Spillantini, M. G., Morris, H. R., Rizzu, P., Snowden, J. S., Rollinson, S., Richardson, A., Gerhard, A., Bruni, A. C., Maletta, R., Frangipane, F., Cupidi, C., Bernardi, L., Anfossi, M., Gallo, M., Conidi, M. E., Smirne, N., Baker, M., Josephs, K. A., Parisi, J. E., Seeley, W. W., Miller, B. L., Karydas, A. M., Rosen, H., Dopper, E. G. P., Seelaar, H., Logroscino, G., Capozzo, R., Novelli, V., Puca, A. A., Franceschi, M., Postiglione, A., Milan, G., Sorrentino, P., Kristiansen, M., Chiang, H. -H., Graff, C., Pasquier, F., Rollin, A., Deramecourt, V., Lebouvier, T., Kapogiannis, D., Ferrucci, L., Pickering-Brown, S., Singleton, A. B., Hardy, J., Momeni, P., Boeve, B. F., Petersen, R. C., Ferman, T. J., van Gerpen, J. A., Reinders, M. J. T., Uitti, R. J., Tarraga, L., Maier, W., Dols-Icardo, O., Kawalia, A., Dalmasso, M. C., Boada, M., Zettl, U. K., van Schoor, N. M., Beekman, M., Allen, M., Masliah, E., de Munain, A. L., Pantelyat, A., Wszolek, Z. K., Ross, O. A., Dickson, D. W., Graff-Radford, N. R., Knopman, D., Rademakers, R., Lemstra, A. W., Pijnenburg, Y. A. L., Scheltens, P., Gasser, T., Chinnery, P. F., Hemmer, B., Huisman, M. A., Troncoso, J., Moreno, F., Nohr, E. A., Sorensen, T. I. A., Heutink, P., Sanchez-Juan, P., Posthuma, D., Coppola, G., Varpetian, A., Foroud, T. M., Levey, A. I., Kukull, W. A., Mendez, M. F., Ringman, J., Chui, H., Cotman, C., Decarli, C., Geschwind, D. H., Clarimon, J., Christensen, K., Ertekin-Taner, N., Scholz, S. W., Ramirez, A., Ruiz, A., Slagboom, E., van der Flier, W. M., Holstege, H., Neurology, Epidemiology and Data Science, Human genetics, APH - Societal Participation & Health, APH - Aging & Later Life, Amsterdam Neuroscience - Complex Trait Genetics, APH - Personalized Medicine, and APH - Methodology

Subjects
education
Abstract

The IPDGC (The International Parkinson Disease Genomics Consortium) and EADB (Alzheimer Disease European DNA biobank) are listed correctly as an author to the article, however, they were incorrectly listed more than once.

Published
2020

40. Mendelian randomization implies no direct causal association between leukocyte telomere length and amyotrophic lateral sclerosis

Author

Gao, Y. (Yixin), Wang, T. (Ting), Yu, X. (Xinghao), Ferrari, R. (Raffaele), Hernandez, D.G. (Dena), Nalls, M.A. (Michael), Rohrer, J.D. (Jonathan), Ramasamy, A. (Adaikalavan), Kwok, J.B.J. (John), Dobson-Stone, C. (Carol), Brooks, W.S. (William S.), Schofield, P.R. (Peter R.), Halliday, G.M. (Glenda Margaret), Hodges, J.R. (John R.), Piguet, O. (Olivier), Bartley, L. (Lauren), Thompson, E. (Elizabeth), Haan, E. (Eric), Hernández, I. (Isabel), Ruiz, A. (A.), Boada, M. (Mercè), Borroni, B. (Barbara), Padovani, A. (Alessandro), Crane, L.M.A., Cairns, N.J. (Nigel), Benussi, L. (Luisa), Binetti, G. (Giuliano), Ghidoni, R. (Roberta), Forloni, G. (Gianluigi), Albani, D. (Diego), Galimberti, D. (Daniela), Fenoglio, C. (Chiara), Serpente, M. (Maria), Scarpini, E. (Elio), Clarimón, J. (Jordi), Lleo, A. (Alberto), Blesa, R. (Rafael), Waldö, M.L. (Maria Landqvist), Nilsson, K. (Karin), Nilsson, C. (Christer), Mackenzie, I.R.A. (Ian), Hsiung, G.-Y.R. (Ging-Yuek R.), Mann, D.M.A. (David M. A.), Grafman, J. (Jordan), Morris, C.M. (Chris), Attems, J. (Johannes), Griffiths, T.D. (Timothy), McKeith, I.G. (Ian), Thomas, A.J. (Alan J.), Pietrini, P. (P.), Huey, E.D. (Edward), Wassermann, E.M. (Eric), Baborie, A. (Atik), Jaros, J.A.J. (Julian), Tierney, M.C. (Michael C.), Pastor, P. (Pau), Razquin, C. (Cristina), Ortega-Cubero, S. (Sara), Alonso, E. (Elena), Perneczky, R. (Robert), Diehl-Schmid, J. (Janine), Alexopoulos, E.C. (Evangelos), Kurz, A., Rainero, I. (Innocenzo), Rubino, M. (Maurizio), Pinessi, L. (Lorenzo), Rogaeva, E. (Ekaterina), George-Hyslop, P.S. (Peter St), Rossi, G. (Giacomina), Tagliavini, F. (Fabrizio), Giaccone, G. (Giuseppe), Rowe, J.B. (James), Schlachetzki, J.C.M. (Johannes C.), Uphill, J. (James), Collinge, J. (John), Mead, S. (Simon), Danek, A. (Adrian), Deerlin, V.M. (Vivianna), Grossman, M. (Murray), Trojanowski, J.Q. (John Q.), Zee, J. (Jill) van der, Cruts, M. (Marc), Broeckhoven, C. (Christine) van, Cappa, S.F. (Stefano), Leber, I. (Isabelle), Hannequin, D. (Didier), Golfier, V. (Véronique), Vercelletto, M. (Martine), Brice, A. (Alexis), Nacmias, B. (Benedetta), Sorbi, S. (Sandro), Bagnoli, S. (Silvia), Piaceri, I. (Irene), Nielsen, J.E. (Jørgen E.), Hjermind, L.E. (Lena), Riemenschneider, M. (Matthias), Mayhaus, M. (Manuel), Ibach, B. (Bernd), Gasparoni, G. (Gilles), Pichler, I. (Irene), Gu, W. (Wei), Rossor, M. (Martin), Fox, N.C. (Nick), Warren, J.D. (Jason), Spillantini, M.G., Morris, H.R. (Huw R.), Rizzu, P. (Patrizia), Heutink, P. (Peter), Snowden, J. (Julie), Rollinson, S. (Sara), Richardson, A. (Anna), Gerhard, A. (Alex), Bruni, A.C. (Amalia), Maletta, R. (Raffaele), Frangipane, F. (Francesca), Cupidi, C. (Chiara), Bernardi, L. (Livia), Anfossi, M. (Maria), Gallo, V. (Valentina), Conidi, A. (Andrea), Smirne, N. (Nicoletta), Rademakers, S. (Suzanne), Baker, M.C. (Matthew), Dickson, D. (Dennis), Graff-Radford, N.R. (Neill), Petersen, R.C. (Ronald C.), Knopman, D.S. (David), Josephs, K.A. (Keith), Boeve, B.F. (Bradley F.), Parisi, J.E. (Joseph), Seeley, W.W. (William W.), Miller, B.L. (Bruce L.), Karydas, A.M. (Anna M.), Rosen, H. (Howard), Swieten, J.C. (John) van, Dopper, E.G.P. (Elise), Seelaar, H. (Harro), Pijnenburg, Y.A.L. (Yolande), Scheltens, P. (Philip), Logroscino, G. (Giancarlo), Capozzo, R. (Rosa), Novelli, V. (Valeria), Puca, A.A. (Annibale), Franceschi, M. (Massimo), Postiglione, A. (Alfredo), Milan, D.J. (David), Sorrentino, D. (Dario), Kristiansen, M. (Mark), Chiang, Y.T., Graff, C. (Caroline), Pasquier, F. (Florence), Rollin, A. (Adeline), Deramecourt, V. (Vincent), Lebouvier, T. (Thibaud), Kapogiannis, D. (Dimitrios), Ferrucci, L. (Luigi), Pickering-Brown, S. (Stuart), Singleton, A. (Andrew), Hardy, J. (John), Momeni, P. (Parastoo), Zhao, H. (Huashuo), Zeng, P. (Ping), Gao, Y. (Yixin), Wang, T. (Ting), Yu, X. (Xinghao), Ferrari, R. (Raffaele), Hernandez, D.G. (Dena), Nalls, M.A. (Michael), Rohrer, J.D. (Jonathan), Ramasamy, A. (Adaikalavan), Kwok, J.B.J. (John), Dobson-Stone, C. (Carol), Brooks, W.S. (William S.), Schofield, P.R. (Peter R.), Halliday, G.M. (Glenda Margaret), Hodges, J.R. (John R.), Piguet, O. (Olivier), Bartley, L. (Lauren), Thompson, E. (Elizabeth), Haan, E. (Eric), Hernández, I. (Isabel), Ruiz, A. (A.), Boada, M. (Mercè), Borroni, B. (Barbara), Padovani, A. (Alessandro), Crane, L.M.A., Cairns, N.J. (Nigel), Benussi, L. (Luisa), Binetti, G. (Giuliano), Ghidoni, R. (Roberta), Forloni, G. (Gianluigi), Albani, D. (Diego), Galimberti, D. (Daniela), Fenoglio, C. (Chiara), Serpente, M. (Maria), Scarpini, E. (Elio), Clarimón, J. (Jordi), Lleo, A. (Alberto), Blesa, R. (Rafael), Waldö, M.L. (Maria Landqvist), Nilsson, K. (Karin), Nilsson, C. (Christer), Mackenzie, I.R.A. (Ian), Hsiung, G.-Y.R. (Ging-Yuek R.), Mann, D.M.A. (David M. A.), Grafman, J. (Jordan), Morris, C.M. (Chris), Attems, J. (Johannes), Griffiths, T.D. (Timothy), McKeith, I.G. (Ian), Thomas, A.J. (Alan J.), Pietrini, P. (P.), Huey, E.D. (Edward), Wassermann, E.M. (Eric), Baborie, A. (Atik), Jaros, J.A.J. (Julian), Tierney, M.C. (Michael C.), Pastor, P. (Pau), Razquin, C. (Cristina), Ortega-Cubero, S. (Sara), Alonso, E. (Elena), Perneczky, R. (Robert), Diehl-Schmid, J. (Janine), Alexopoulos, E.C. (Evangelos), Kurz, A., Rainero, I. (Innocenzo), Rubino, M. (Maurizio), Pinessi, L. (Lorenzo), Rogaeva, E. (Ekaterina), George-Hyslop, P.S. (Peter St), Rossi, G. (Giacomina), Tagliavini, F. (Fabrizio), Giaccone, G. (Giuseppe), Rowe, J.B. (James), Schlachetzki, J.C.M. (Johannes C.), Uphill, J. (James), Collinge, J. (John), Mead, S. (Simon), Danek, A. (Adrian), Deerlin, V.M. (Vivianna), Grossman, M. (Murray), Trojanowski, J.Q. (John Q.), Zee, J. (Jill) van der, Cruts, M. (Marc), Broeckhoven, C. (Christine) van, Cappa, S.F. (Stefano), Leber, I. (Isabelle), Hannequin, D. (Didier), Golfier, V. (Véronique), Vercelletto, M. (Martine), Brice, A. (Alexis), Nacmias, B. (Benedetta), Sorbi, S. (Sandro), Bagnoli, S. (Silvia), Piaceri, I. (Irene), Nielsen, J.E. (Jørgen E.), Hjermind, L.E. (Lena), Riemenschneider, M. (Matthias), Mayhaus, M. (Manuel), Ibach, B. (Bernd), Gasparoni, G. (Gilles), Pichler, I. (Irene), Gu, W. (Wei), Rossor, M. (Martin), Fox, N.C. (Nick), Warren, J.D. (Jason), Spillantini, M.G., Morris, H.R. (Huw R.), Rizzu, P. (Patrizia), Heutink, P. (Peter), Snowden, J. (Julie), Rollinson, S. (Sara), Richardson, A. (Anna), Gerhard, A. (Alex), Bruni, A.C. (Amalia), Maletta, R. (Raffaele), Frangipane, F. (Francesca), Cupidi, C. (Chiara), Bernardi, L. (Livia), Anfossi, M. (Maria), Gallo, V. (Valentina), Conidi, A. (Andrea), Smirne, N. (Nicoletta), Rademakers, S. (Suzanne), Baker, M.C. (Matthew), Dickson, D. (Dennis), Graff-Radford, N.R. (Neill), Petersen, R.C. (Ronald C.), Knopman, D.S. (David), Josephs, K.A. (Keith), Boeve, B.F. (Bradley F.), Parisi, J.E. (Joseph), Seeley, W.W. (William W.), Miller, B.L. (Bruce L.), Karydas, A.M. (Anna M.), Rosen, H. (Howard), Swieten, J.C. (John) van, Dopper, E.G.P. (Elise), Seelaar, H. (Harro), Pijnenburg, Y.A.L. (Yolande), Scheltens, P. (Philip), Logroscino, G. (Giancarlo), Capozzo, R. (Rosa), Novelli, V. (Valeria), Puca, A.A. (Annibale), Franceschi, M. (Massimo), Postiglione, A. (Alfredo), Milan, D.J. (David), Sorrentino, D. (Dario), Kristiansen, M. (Mark), Chiang, Y.T., Graff, C. (Caroline), Pasquier, F. (Florence), Rollin, A. (Adeline), Deramecourt, V. (Vincent), Lebouvier, T. (Thibaud), Kapogiannis, D. (Dimitrios), Ferrucci, L. (Luigi), Pickering-Brown, S. (Stuart), Singleton, A. (Andrew), Hardy, J. (John), Momeni, P. (Parastoo), Zhao, H. (Huashuo), and Zeng, P. (Ping)

Abstract

We employed Mendelian randomization (MR) to evaluate the causal relationship between leukocyte telomere length (LTL) and amyotrophic lateral sclerosis (ALS) with summary statistics from genome-wide association studies (n = ~ 38,000 for LTL and ~ 81,000 for ALS in the European population; n = ~ 23,000 for LTL and ~ 4,100 for ALS in the Asian population). We further evaluated mediation roles of lipids in the pathway from LTL to ALS. The odds ratio per standard deviation decrease of LTL on ALS was 1.10 (95% CI 0.93–1.31, p = 0.274) in the European population and 0.75 (95% CI 0.53–1.07, p = 0.116) in the Asian population. This null association was also detected between LTL and frontotemporal dementia in the European population. However, we found that an indirect effect of LTL on ALS might be mediated by low density lipoprotein (LDL) or total cholesterol (TC) in the European population.

Published
2020
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41. A study protocol for a phase II randomised, double-blind, placebo-controlled trial of sodium selenate as a disease-modifying treatment for behavioural variant frontotemporal dementia

Author

Vivash, L, Malpas, CB, Churilov, L, Walterfang, M, Brodtmann, A, Piguet, O, Ahmed, RM, Bush, A, Hovens, CM, Kalincik, T, Darby, D, Velakoulis, D, O'Brien, TJ, Vivash, L, Malpas, CB, Churilov, L, Walterfang, M, Brodtmann, A, Piguet, O, Ahmed, RM, Bush, A, Hovens, CM, Kalincik, T, Darby, D, Velakoulis, D, and O'Brien, TJ

Abstract

INTRODUCTION: Behavioural variant frontotemporal dementia (bvFTD) is a neurodegenerative disorder often neuropathologically associated with the accumulation of abnormally hyperphosphorylated tau, for which there is currently no disease-modifying treatment. Previous work by our group has shown sodium selenate upregulates the activity of protein phosphatase 2 in the brain, increasing the rate of tau dephosphorylation. The objective of this study is to evaluate the efficacy and safety of sodium selenate as a disease-modifying treatment for bvFTD. METHODS AND ANALYSIS: This will be a multisite, phase IIb, double-blind placebo-controlled trial of sodium selenate. One hundred and twenty participants will be enrolled across 4 Australian academic hospitals. Following screening eligible participants will be randomised (1:1) to sodium selenate (15 mg three times a day) or placebo for 52 weeks. Participants will have regular safety and efficacy visits throughout the study period. The primary study outcome will be percentage brain volume change (PBVC) as measured on MRI over 52 weeks of treatment. This will be analysed with a general linear model (analysis of covariance (ANCOVA)) with the PBVC as an output, the treatment as an input and the baseline brain volume as covariate for adjustment purposes. Secondary outcomes include safety and tolerability measures, and efficacy measures; change in cerebrospinal fluid total-tau, Addenbrooke's Cognitive Examination-III and Cambridge Behavioural Inventory-Revised scores over the 52 weeks of treatment. These will also be analysed with ANCOVA where the corresponding baseline measure will be incorporated in the model. Additional exploratory outcomes will include other imaging, cognitive and biospecimen analyses. ETHICS AND DISSEMINATION: The study was approved by the Human Research and Ethics Committee of the lead site as part of the Australian Multisite Ethics approval system. The results of the study will be presented at national and int

Published
2020

43. Hippocampal size and memory function in the ninth and tenth decades of life: the Sydney Older Persons Study

Author

Lye, T.C., Piguet, O., Grayson, D.A., Creasey, H., Ridley, L.J., Bennett, H.P., and Broe, G.A.

Subjects
Brain -- Research -- Physiological aspects, Neurology -- Research -- Physiological aspects, Health, Psychology and mental health, Physiological aspects, Research
Abstract

J Neurol Neurosurg Psychiatry 2004;75:548-554. doi: 10.1136/jnnp.2003.010223 Objectives: The purpose of this study was to define magnetic resonance imaging (MRI) correlates of normal brain ageing, with the specific objective of [...]

Published
2004

47. Correction to: A nonsynonymous mutation in PLCG2 reduces the risk of Alzheimer’s disease, dementia with Lewy bodies and frontotemporal dementia, and increases the likelihood of longevity

Author

van der Lee, Sven J, Conway, Olivia J, Zettergren, Anna, Christensen, Kaare, Ertekin-Taner, Nilüfer, Scholz, Sonja W, Ramirez, Alfredo, Ruiz, Agustín, Slagboom, Eline, van der Flier, Wiesje M, Holstege, Henne, Mead, S., Synofzik, M., Andlauer, Till F M, van Swieten, J. C., Leber, I., Ferrari, R., Hernandez, D. G., Nalls, M. A., Rohrer, J. D., Ramasamy, A., Kwok, J. B. J., Dobson-Stone, C., Schofield, P. R., Diez-Fairen, Monica, Halliday, G. M., Hodges, J. R., Piguet, O., Bartley, L., Thompson, E., Borroni, B., Padovani, A., Cruchaga, C., Cairns, N. J., Benussi, L., Simon-Sanchez, Javier, Binetti, G., Ghidoni, R., Forloni, G., Albani, D., Galimberti, D., Fenoglio, C., Serpente, M., Scarpini, E., Blesa, R., Landqvist Waldö, M., Lleó, Alberto, Nilsson, K., Nilsson, C., Mackenzie, I. R. A., Hsiung, G-Y R, Mann, D. M. A., Grafman, J., Morris, C. M., Attems, J., Griffiths, T. D., McKeith, I. G., Zetterberg, Henrik, Thomas, A. J., Pietrini, P., Huey, E. D., Wassermann, E. M., Baborie, A., Jaros, E., Tierney, M. C., Razquin, C., Ortega-Cubero, S., Alonso, E., Nygaard, Marianne, Perneczky, R., Diehl-Schmid, J., Alexopoulos, P., Kurz, A., Rainero, I., Rubino, E., Pinessi, L., Rogaeva, E., St George-Hyslop, P., Rossi, G., Blauwendraat, Cornelis, Tagliavini, F., Giaccone, G., Rowe, J. B., Schlachetzki, J. C. M., Uphill, J., Collinge, J., Danek, A., Van Deerlin, V. M., Grossman, M., Trojanowski, J. Q., Savage, Jeanne E, van der Zee, J., Van Broeckhoven, C., Cappa, S. F., Hannequin, D., Golfier, V., Vercelletto, M., Brice, A., Nacmias, B., Sorbi, S., Bagnoli, S., Mengel-From, Jonas, Piaceri, I., Nielsen, J. E., Hjermind, L. E., Riemenschneider, M., Mayhaus, M., Ibach, B., Gasparoni, G., Pichler, S., Gu, W., Rossor, M. N., Jansen, Iris, Moreno-Grau, Sonia, Fox, N. C., Warren, J. D., Spillantini, M. G., Morris, H. R., Rizzu, P., Snowden, J. S., Rollinson, S., Richardson, A., Gerhard, A., Bruni, A. C., Wagner, Michael, Maletta, R., Frangipane, F., Cupidi, C., Bernardi, L., Anfossi, M., Gallo, M., Conidi, M. E., Smirne, N., Baker, M., Josephs, K. A., Fortea, Juan, Parisi, J. E., Seeley, W. W., Miller, B. L., Karydas, A. M., Rosen, H., Dopper, E. G. P., Seelaar, H., Logroscino, G., Capozzo, R., Novelli, V., Keogh, Michael J, Puca, A. A., Franceschi, M., Postiglione, A., Milan, G., Sorrentino, P., Kristiansen, M., Chiang, H-H, Graff, C., Pasquier, F., Rollin, A., Blennow, Kaj, Deramecourt, V., Lebouvier, T., Kapogiannis, D., Ferrucci, L., Pickering-Brown, S., Singleton, A. B., Hardy, J., Momeni, P., Coppola, G., Skoog, Ingmar, Varpetian, A., Foroud, T. M., Levey, A. I., Kukull, W. A., Mendez, M. F., Ringman, J., Chui, H., Cotman, C., DeCarli, C., Friese, Manuel A, Geschwind, D. H., Pletnikova, Olga, Zulaica, Miren, Lage, Carmen, Carrasquillo, Minerva M, de Rojas, Itziar, Riedel-Heller, Steffi, Illán-Gala, Ignacio, Wei, Wei, Jeune, Bernard, Orellana, Adelina, Then Bergh, Florian, Wang, Xue, Hulsman, Marc, Beker, Nina, Kleineidam, Luca, Tesi, Niccolo, Morris, Christopher M, Indakoetxea, Begoña, Collij, Lyduine E, Scherer, Martin, Morenas-Rodríguez, Estrella, Ironside, James W, van Berckel, Bart N M, Alcolea, Daniel, Wiendl, Heinz, van den Akker, Erik, Strickland, Samantha L, Pastor, Pau, Rodríguez Rodríguez, Eloy, DESGESCO, EADB, IFGC, IPDGC, RiMod-FTD, Bank, Netherlands Brain, Boeve, Bradley F, Hernández, Isabel, Petersen, Ronald C, Ferman, Tanis J, van Gerpen, Jay A, Reinders, Marcel J T, Uitti, Ryan J, Tárraga, Lluís, Maier, Wolfgang, Dols-Icardo, Oriol, Kawalia, Amit, Dalmasso, Maria Carolina, van Eijk, Kristel R, Boada, Mercè, Zettl, Uwe K, van Schoor, Natasja M, Beekman, Marian, Allen, Mariet, Masliah, Eliezer, de Munain, Adolfo López, Pantelyat, Alexander, Wszolek, Zbigniew K, Ross, Owen A, Stringa, Najada, Dickson, Dennis W, Graff-Radford, Neill R, Knopman, David, Rademakers, Rosa, Lemstra, Afina W, Pijnenburg, Yolande A L, Scheltens, Philip, Gasser, Thomas, Chinnery, Patrick F, Hemmer, Bernhard, Chen, Jason A, Huisman, Martijn A, Troncoso, Juan, Moreno, Fermin, Nohr, Ellen A, Sørensen, Thorkild I A, Heutink, Peter, Sánchez-Juan, Pascual, Posthuma, Danielle, GIFT, and Clarimón, Jordi

Subjects
0301 basic medicine, Dementia with Lewy bodies, Disease, Bioinformatics, Neurodegenerative disease, 0302 clinical medicine, Missense mutation, media_common, 2. Zero hunger, Longevity, Brain, Parkinson Disease, Phospholipase C Gamma 2, Biobank, 3. Good health, ddc, Frontotemporal Dementia, Microglia, Alzheimer's disease, Alzheimer’s disease, Amyotrophic lateral sclerosis, Frontotemporal dementia, Multiple sclerosis, PLCG2, Parkinson’s disease, Progressive supranuclear palsy, Lewy Body Disease, Risk, Multiple Sclerosis, media_common.quotation_subject, education, Neuroimaging, Genomics, Pathology and Forensic Medicine, 03 medical and health sciences, Cellular and Molecular Neuroscience, SDG 3 - Good Health and Well-being, Alzheimer Disease, medicine, Humans, Genetic Predisposition to Disease, ddc:610, Alleles, Phospholipase C gamma, business.industry, Amyotrophic Lateral Sclerosis, Correction, medicine.disease, 030104 developmental biology, Mutation, Dementia, Neurology (clinical), business, 030217 neurology & neurosurgery, Genome-Wide Association Study
Abstract

The genetic variant rs72824905-G (minor allele) in the PLCG2 gene was previously associated with a reduced Alzheimer's disease risk (AD). The role of PLCG2 in immune system signaling suggests it may also protect against other neurodegenerative diseases and possibly associates with longevity. We studied the effect of the rs72824905-G on seven neurodegenerative diseases and longevity, using 53,627 patients, 3,516 long-lived individuals and 149,290 study-matched controls. We replicated the association of rs72824905-G with reduced AD risk and we found an association with reduced risk of dementia with Lewy bodies (DLB) and frontotemporal dementia (FTD). We did not find evidence for an effect on Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS) and multiple sclerosis (MS) risks, despite adequate sample sizes. Conversely, the rs72824905-G allele was associated with increased likelihood of longevity. By-proxy analyses in the UK Biobank supported the associations with both dementia and longevity. Concluding, rs72824905-G has a protective effect against multiple neurodegenerative diseases indicating shared aspects of disease etiology. Our findings merit studying the PLCγ2 pathway as drug-target. The genetic variant rs72824905-G (minor allele) in the PLCG2 gene was previously associated with a reduced Alzheimer's disease risk (AD). The role of PLCG2 in immune system signaling suggests it may also protect against other neurodegenerative diseases and possibly associates with longevity. We studied the effect of the rs72824905-G on seven neurodegenerative diseases and longevity, using 53,627 patients, 3,516 long-lived individuals and 149,290 study-matched controls. We replicated the association of rs72824905-G with reduced AD risk and we found an association with reduced risk of dementia with Lewy bodies (DLB) and frontotemporal dementia (FTD). We did not find evidence for an effect on Parkinson's disease (PD), amyotrophic lateral sclerosis (ALS) and multiple sclerosis (MS) risks, despite adequate sample sizes. Conversely, the rs72824905-G allele was associated with increased likelihood of longevity. By-proxy analyses in the UK Biobank supported the associations with both dementia and longevity. Concluding, rs72824905-G has a protective effect against multiple neurodegenerative diseases indicating shared aspects of disease etiology. Our findings merit studying the PLCγ2 pathway as drug-target.

Published
2019

48. Genetic variation across RNA metabolism and cell death gene networks is implicated in the semantic variant of primary progressive aphasia

Author

Bonham, L.W., Steele, N.Z.R., Karch, C.M., Broce, I., Geier, E.G., Wen, N.L., Momeni, P., Hardy, J., Miller, Z.A., Gorno-Tempini, M.L., Hess, C.P., Lewis, P., Miller, B.L., Seeley, W.W., Manzoni, C., Desikan, R.S., Baranzini, S.E., Ferrari, R., Yokoyama, J.S., Hernandez, D.G., Nalls, M.A., Rohrer, J.D., Ramasamy, A., Kwok, J.B.J., Dobson-Stone, C., Schofield, P.R., Halliday, G.M., Hodges, J.R., Piguet, O., Bartley, L., Thompson, E., Haan, E., Hernández, Isabel, Ruiz, A., Boada, M., Borroni, B., Padovani, A., Cruchaga, C., Cairns, N.J., Benussi, L., Binetti, G., Ghidoni, R., Forloni, G., Albani, Diego, Galimberti, D., Fenoglio, C., Serpente, M., Scarpini, E., Clarimón, J., Lleó, Alberto, Blesa, R., Landqvist Waldö, M., Nilsson, K., Nilsson, C., Mackenzie, I.R.A., Hsiung, G.Y.R., Mann, D.M.A., Grafman, J., Morris, C.M., Attems, J., Griffiths, T.D., McKeith, I.G., Thomas, A.J., Pietrini, P., Huey, E.D., Wassermann, E.M., Baborie, A., Jaros, E., Tierney, M.C., Pastor, Pau, 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, J.B., Schlachetzki, J.C.M., Uphill, J., Collinge, J., Mead, S., Danek, A., Van Deerlin, V.M., Grossman, M., Trojanowski, J.Q., van der Zee, J., Cruts, M., Van Broeckhoven, C., Cappa, S.F., Leber, I., Hannequin, D., Golfier, V., Vercelletto, M., Brice, A., Nacmias, B., Sorbi, Sandro, Bagnoli, S., Piaceri, I., Nielsen, J.E., Hjermind, L.E., Riemenschneider, M., Mayhaus, M., Ibach, B., Gasparoni, G., Pichler, S., Gu, W., Rossor, M.N., Fox, N.C., Warren, J.D., Spillantini, M.G., Morris, H.R., Rizzu, P., Heutink, P., Snowden, J.S., Rollinson, S., Richardson, A., Gerhard, A., Bruni, A.C., Maletta, R., Frangipane, F., Cupidi, C., Bernardi, L., Anfossi, M., Gallo, M., Conidi, M.E., Smirne, N., Rademakers, R., Baker, M., Dickson, Dennis W., Graff-Radford, N.R., Petersen, R.C., Knopman, D., Josephs, K.A., Boeve, B.F., Parisi, J.E., Karydas, A.M., Rosen, H., van Swieten, J.C., Dopper, E.G.P., Seelaar, H., Pijnenburg, Y.A.L., Scheltens, Philip, Logroscino, G., Capozzo, R., Novelli, V., Puca, A.A., Franceschi, M., Postiglione, A., Milan, G., Sorrentino, P., Kristiansen, M., Chiang, H.H., Graff, C., Pasquier, F., Rollin, A., Deramecourt, V., Lebouvier, T., Kapogiannis, D., Ferrucci, L., Pickering-Brown, S., Singleton, A.B., Universitat Autònoma de Barcelona, Broce, Iris [0000-0003-4932-1430], Miller, Zachary A. [0000-0002-5991-3053], Lewis, Patrick [0000-0003-4537-0489], Baranzini, Sergio E. [0000-0003-0067-194X], Apollo - University of Cambridge Repository, Int FTD-Genomics Consortium, Neurology, Amsterdam Neuroscience - Neurodegeneration, Divisions, and CCA - Imaging and biomarkers

Subjects
0301 basic medicine, Aging, Transcription, Genetic, Gene regulatory network, lcsh:Medicine, Genome-wide association study, Apoptosis, Neurodegenerative, Primary progressive aphasia, Cohort Studies, 0302 clinical medicine, 692/617/375/132, Risk Factors, Databases, Genetic, 2.1 Biological and endogenous factors, Gene Regulatory Networks, Protein Interaction Maps, Aetiology, lcsh:Science, Multidisciplinary, Neurodegeneration, Neurodegenerative diseases, article, Frontotemporal lobar degeneration, 631/208/205, Single Nucleotide, Phenotype, ddc, 3. Good health, DNA-Binding Proteins, Frontotemporal Dementia (FTD), 692/617/375/365, Neurological, Medical genetics, 38/39, Engineering sciences. Technology, Transcription, Biotechnology, medicine.medical_specialty, Computational biology, Biology, Polymorphism, Single Nucleotide, 03 medical and health sciences, Databases, Rare Diseases, Genetic, medicine, Aphasia, Acquired Cognitive Impairment, Genetics, Humans, Primary Progressive Nonfluent Aphasia, Polymorphism, Gene, Genetic association study, International FTD-Genomics Consortium, lcsh:R, Human Genome, Neurosciences, medicine.disease, Brain Disorders, 631/208/199, 030104 developmental biology, Gene Expression Regulation, RNA, lcsh:Q, Dementia, Gene expression, 030217 neurology & neurosurgery, Genome-Wide Association Study
Abstract

The semantic variant of primary progressive aphasia (svPPA) is a clinical syndrome characterized by neurodegeneration and progressive loss of semantic knowledge. Unlike many other forms of frontotemporal lobar degeneration (FTLD), svPPA has a highly consistent underlying pathology composed of TDP-43 (a regulator of RNA and DNA transcription metabolism). Previous genetic studies of svPPA are limited by small sample sizes and a paucity of common risk variants. Despite this, svPPA’s relatively homogenous clinicopathologic phenotype makes it an ideal investigative model to examine genetic processes that may drive neurodegenerative disease. In this study, we used GWAS metadata, tissue samples from pathologically confirmed frontotemporal lobar degeneration, and in silico techniques to identify and characterize protein interaction networks associated with svPPA risk. We identified 64 svPPA risk genes that interact at the protein level. The protein pathways represented in this svPPA gene network are critical regulators of RNA metabolism and cell death, such as SMAD proteins and NOTCH1. Many of the genes in this network are involved in TDP-43 metabolism. Contrary to the conventional notion that svPPA is a clinical syndrome with few genetic risk factors, our analyses show that svPPA risk is complex and polygenic in nature. Risk for svPPA is likely driven by multiple common variants in genes interacting with TDP-43, along with cell death,x` working in combination to promote neurodegeneration.

Published
2019

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