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3 results on '"Barrero FJ"'

1. Oxidative stress and plasma aminopeptidase activity in Huntington's disease.

Author

Duran R, Barrero FJ, Morales B, Luna JD, Ramirez M, and Vives F

Subjects
Adult, Female, Heterozygote, Humans, Huntington Disease enzymology, Huntington Disease genetics, Male, Middle Aged, Aminopeptidases blood, Huntington Disease blood, Lactic Acid blood, Lipid Peroxides blood, Oxidative Stress
Abstract

Huntington's disease (HD) is a genetic neurodegenerative disorder. Oxidative stress, mitochondrial dysfunction, and protein metabolism impairment have been implicated in its pathogenesis. However, the contribution of these phenomena to HD onset or progression is not well known, and they have been less studied in peripheral blood. We analyzed plasma lipid peroxide (LPO) and lactate (LAC) concentrations as indicators of oxidative stress and mitochondrial dysfunction in symptomatic HD patients (sHD) and asymptomatic HD gene carriers (aHD). We also measured the plasma activity of aminopeptidases (APs), an important group of proteolytic enzymes. LPO and LAC concentrations were significantly elevated in sHD patients but not in aHD carriers. Aspartate and glutamate AP activities were significantly reduced in sHD patients and aHD carriers. These findings demonstrate that sHD patients are under oxidative stress, which may favor progression of the disease. Plasma AP activity was decreased before the appearance of HD symptoms and oxidative stress and may be related to protein metabolism impairment. These results indicate that therapy directed to improve oxidative stress and normalize AP activity may be useful in the treatment of HD. They also suggest that decreased plasma AP activity in aHD carriers may predict the future onset of HD symptoms.

Published
2010
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2. 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

3. 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

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