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5. Identifying the Resource Needs of Young People with Differences of Sex Development.

Author

Tonkin-Hill, G, Hanna, C, Bonelli, R, Mortimer, R, O'Connell, MA, Grover, SR, Tonkin-Hill, G, Hanna, C, Bonelli, R, Mortimer, R, O'Connell, MA, and Grover, SR

Abstract

Adolescents with differences of sex development (DSD) often have complex medical, surgical, and psychological care needs and require age-appropriate resources. This cross-sectional study describes the past and current experiences of adolescents and young adults with DSD and their need for information and support. Participants aged 14−30 years with DSD diagnoses were identified, either from departmental records at the Royal Children’s Hospital (RCH), Melbourne, Australia, or from the private practice of a gynecologist linked to RCH. Anonymized data were collected from a specifically designed online survey. Of the 314 successfully traced patients, 91 (28.9%) completed the survey. Amongst respondents, older age was strongly correlated with higher levels of distress at the time of disclosure (b = 0.67, p < 0.001). People who reported greater understanding of their condition (b = −0.45, p = 0.010) and higher levels of support (b = −0.40, p = 0.003) identified lower levels of current distress. Respondents preferred to receive information from a specialist doctor, GP, or websites and reported information needs being highest during adolescence. Only one in four respondents recalled ever being offered psychological support. A number of perceived barriers to accessing support were identified. Our findings indicate that young people’s information and support needs may be best met by improving online resources, as well as increasing introductions to knowledgeable and appropriate primary care physicians, psychological services, and peer support groups. Further work to promote and increase engagement with psychological and peer support for those with DSD will be important.

Published
2022

12. Identification of genetic factors influencing metabolic dysregulation and retinal support for MacTel, a retinal disorder (vol 4, 274, 2021)

Author

Bonelli, R, Jackson, VE, Prasad, A, Munro, JE, Farashi, S, Heeren, TFC, Pontikos, N, Scheppke, L, Friedlander, M, Egan, CA, Allikmets, R, Ansell, BRE, Bahlo, M, Bonelli, R, Jackson, VE, Prasad, A, Munro, JE, Farashi, S, Heeren, TFC, Pontikos, N, Scheppke, L, Friedlander, M, Egan, CA, Allikmets, R, Ansell, BRE, and Bahlo, M

Abstract

A Correction to this paper has been published: https://doi.org/10.1038/s42003-021-01972-y

Published
2021

13. Genetic disruption of serine biosynthesis is a key driver of macular telangiectasia type 2 aetiology and progression

Author

Bonelli, R, Ansell, BRE, Lotta, L, Scerri, T, Clemons, TE, Leung, I, Peto, T, Bird, AC, Sallo, FB, Langenberg, C, Bahlo, M, Bonelli, R, Ansell, BRE, Lotta, L, Scerri, T, Clemons, TE, Leung, I, Peto, T, Bird, AC, Sallo, FB, Langenberg, C, and Bahlo, M

Abstract

BACKGROUND: Macular telangiectasia type 2 (MacTel) is a rare, heritable and largely untreatable retinal disorder, often comorbid with diabetes. Genetic risk loci subtend retinal vascular calibre and glycine/serine/threonine metabolism genes. Serine deficiency may contribute to MacTel via neurotoxic deoxysphingolipid production; however, an independent vascular contribution is also suspected. Here, we use statistical genetics to dissect the causal mechanisms underpinning this complex disease. METHODS: We integrated genetic markers for MacTel, vascular and metabolic traits, and applied Mendelian randomisation and conditional and interaction genome-wide association analyses to discover the causal contributors to both disease and spatial retinal imaging sub-phenotypes. RESULTS: Genetically induced serine deficiency is the primary causal metabolic driver of disease occurrence and progression, with a lesser, but significant, causal contribution of type 2 diabetes genetic risk. Conversely, glycine, threonine and retinal vascular traits are unlikely to be causal for MacTel. Conditional regression analysis identified three novel disease loci independent of endogenous serine biosynthetic capacity. By aggregating spatial retinal phenotypes into endophenotypes, we demonstrate that SNPs constituting independent risk loci act via related endophenotypes. CONCLUSIONS: Follow-up studies after GWAS integrating publicly available data with deep phenotyping are still rare. Here, we describe such analysis, where we integrated retinal imaging data with MacTel and other traits genomics data to identify biochemical mechanisms likely causing this disorder. Our findings will aid in early diagnosis and accurate prognosis of MacTel and improve prospects for effective therapeutic intervention. Our integrative genetics approach also serves as a useful template for post-GWAS analyses in other disorders.

Published
2021

14. Identification of genetic factors influencing metabolic dysregulation and retinal support for MacTel, a retinal disorder

Author

Bonelli, R, Jackson, VE, Prasad, A, Munro, JE, Farashi, S, Heeren, TFC, Pontikos, N, Scheppke, L, Friedlander, M, Egan, CA, Allikmets, R, Ansell, BRE, Bahlo, M, Bonelli, R, Jackson, VE, Prasad, A, Munro, JE, Farashi, S, Heeren, TFC, Pontikos, N, Scheppke, L, Friedlander, M, Egan, CA, Allikmets, R, Ansell, BRE, and Bahlo, M

Abstract

Macular Telangiectasia Type 2 (MacTel) is a rare degenerative retinal disease with complex genetic architecture. We performed a genome-wide association study on 1,067 MacTel patients and 3,799 controls, which identified eight novel genome-wide significant loci (p < 5 × 10-8), and confirmed all three previously reported loci. Using MAGMA, eQTL and transcriptome-wide association analysis, we prioritised 48 genes implicated in serine-glycine biosynthesis, metabolite transport, and retinal vasculature and thickness. Mendelian randomization indicated a likely causative role of serine (FDR = 3.9 × 10-47) and glycine depletion (FDR = 0.006) as well as alanine abundance (FDR = 0.009). Polygenic risk scoring achieved an accuracy of 0.74 and was associated in UKBiobank with retinal damage (p = 0.009). This represents the largest genetic study on MacTel to date and further highlights genetically-induced systemic and tissue-specific metabolic dysregulation in MacTel patients, which impinges on retinal health.

Published
2021

15. La progettazione del Questionario di Valutazione dei Laboratori (QVL) del Corso di laurea in Scienze della Formazione Primaria.

Author

Felisatti, E, Restiglian, E, Scaglia, E, Zuccoli, F, Gaetano, F, Bonelli, R, Scaglia, E., Felisatti, E, Restiglian, E, Scaglia, E, Zuccoli, F, Gaetano, F, Bonelli, R, and Scaglia, E.

Abstract

Un gruppo di lavoro, costituitosi all’interno del Coordinamento dei Presidenti dei CdS in Scienze della Formazione Primaria e composto da docenti, ricercatori e tutor provenienti da alcuni atenei italiani, ha costruito, seguendo una metodologia di lavoro partecipativa, un Questionario per la Valutazione dei Laboratori (QVL) di Scienze della Formazione Primaria (SFP). Lo strumento è stato progettato a partire dalle informazioni ricavate da un’indagine somministrata ai Coordinatori dei Corsi di studio in SFP del Paese, dalle esperienze pregresse e dagli studi sui fondamenti del laboratorio dal punto di vista storico e culturale, e consente agli studenti di valutare anonimamente i laboratori ordinamentali secondo quanto delineato dal decreto 249/2010[1]. Il questionario si articola in sezioni che contemplano la rilevazione di molteplici aspetti dell’esperienza laboratoriale: oltre ai dati identificativi e di profilazione, permette agli studenti di esprimersi rispetto a dinamiche relative all’organizzazione, realizzazione, valutazione e conduzione del laboratorio considerato. Sono stati somministrati due pre-test che hanno permesso di migliorare lo strumento, soprattutto nella chiarezza e nella fruibilità, confermando nel complesso la sua struttura ipotizzata in prima stesura. Il contributo qui presentato si sofferma, nello specifico, sul processo di costruzione condivisa dello strumento e sul ruolo che la student voice ha avuto nella verifica della coerenza del questionario con l’esperienza laboratoriale realizzata., A research group, constituted within the Board of the Presidents of “Scienze della Formazione Primaria” (SFP) degree courses and composed of teachers, researchers, and tutors from some Italian universities, designed a Questionnaire for the Assessment of Workshops (QVL) for the degree course of Scienze della Formazione Primaria, following a participatory working methodology. The group designed the tool starting from: the information obtained from a survey administered to the Coordinators of SFP degree courses; previous experiences; studies on the foundations of the workshops from a historical and cultural point of view. The tool allows students in SFP degree courses to assess the workshops connected to the Italian Ministerial Decree No. 249 of 10/09/2010. The questionnaire is divided into sections that aim to collect data on various aspects, all related to the workshop experience. In addition to identifying and profiling data, the questionnaire allows students to express opinions about dynamics related to the organization, implementation, assessment, and management of the considered workshop. The group administered two pre-tests that made it possible to improve the tool, making it more effective and usable. The structure hypothesized in the first draft was overall confirmed. The contribution presented here dwells specifically on the tool designing process and on the role of the student’s voice in verifying the coherence between the questions proposed and the workshop experience students had carried out.

Published
2021

24. Systemic lipid dysregulation is a risk factor for macular neurodegenerative disease

Author

Bonelli, R, Woods, SM, Ansell, BRE, Heeren, TFC, Egan, CA, Khan, KN, Guymer, R, Trombley, J, Friedlander, M, Bahlo, M, Fruttiger, M, Bonelli, R, Woods, SM, Ansell, BRE, Heeren, TFC, Egan, CA, Khan, KN, Guymer, R, Trombley, J, Friedlander, M, Bahlo, M, and Fruttiger, M

Abstract

Macular Telangiectasia type 2 (MacTel) is an uncommon bilateral retinal disease, in which glial cell and photoreceptor degeneration leads to central vision loss. The causative disease mechanism is largely unknown, and no treatment is currently available. A previous study found variants in genes associated with glycine-serine metabolism (PSPH, PHGDH and CPS1) to be associated with MacTel, and showed low levels of glycine and serine in the serum of MacTel patients. Recently, a causative role of deoxysphingolipids in MacTel disease has been established. However, little is known about possible other metabolic dysregulation. Here we used a global metabolomics platform in a case-control study to comprehensively profile serum from 60 MacTel patients and 58 controls. Analysis of the data, using innovative computational approaches, revealed a detailed, disease-associated metabolic profile with broad changes in multiple metabolic pathways. This included alterations in the levels of several metabolites that are directly or indirectly linked to glycine-serine metabolism, further validating our previous genetic findings. We also found changes unrelated to PSPH, PHGDH and CPS1 activity. Most pronounced, levels of several lipid groups were altered, with increased phosphatidylethanolamines being the most affected lipid group. Assessing correlations between different metabolites across our samples revealed putative functional connections. Correlations between phosphatidylethanolamines and sphingomyelin, and glycine-serine and sphingomyelin, observed in controls, were reduced in MacTel patients, suggesting metabolic re-wiring of sphingomyelin metabolism in MacTel patients. Our findings provide novel insights into metabolic changes associated with MacTel and implicate altered lipid metabolism as a contributor to this retinal neurodegenerative disease.

Published
2020

28. Progression characteristics of ellipsoid zone loss in macular telangiectasia type 2

Author

Pauleikhoff, D, Bonelli, R, Dubis, AM, Gunnemann, F, Rothaus, K, Charbel Issa, P, Heeren, TFC, Peto, T, Clemons, TE, Chew, EY, Bird, AC, Sallo, FB, Bakri, S, Bernstein, PS, Blodi, B, Brucker, A, Bucher, F, Issa, PC, Chung, M, Comer, G, Constable, I, Cooney, M, Do, D, Duncan, J, Egan, C, Elman, MJ, Fawzi, A, Friedlander, M, Gaudric, A, Gillies, MC, Goldberg, R, Googe, JM, Guymer, R, Higgins, P, Holz, F, Houghton, O, Hoyng, CB, Hubschman, J-P, Jhaveri, C, Khanani, A, Lally, D, Lee, C, Lee, M, Miller, JW, Miller, D, Moisseiev, J, Murphy, R, Narayanan, R, Randhawa, S, Raphaelian, PV, Rich, R, Rosen, R, Rosenfeld, P, Ruys, J, Sahel, J-A, Schwartz, S, Singerman, L, Sneed, S, Soubrane, G, Vingerling, JR, Warrow, D, Weinberg, D, Wolf, S, Wykoff, C, Yan, J, Yannuzzi, LA, Zhuk, SA, Pauleikhoff, D, Bonelli, R, Dubis, AM, Gunnemann, F, Rothaus, K, Charbel Issa, P, Heeren, TFC, Peto, T, Clemons, TE, Chew, EY, Bird, AC, Sallo, FB, Bakri, S, Bernstein, PS, Blodi, B, Brucker, A, Bucher, F, Issa, PC, Chung, M, Comer, G, Constable, I, Cooney, M, Do, D, Duncan, J, Egan, C, Elman, MJ, Fawzi, A, Friedlander, M, Gaudric, A, Gillies, MC, Goldberg, R, Googe, JM, Guymer, R, Higgins, P, Holz, F, Houghton, O, Hoyng, CB, Hubschman, J-P, Jhaveri, C, Khanani, A, Lally, D, Lee, C, Lee, M, Miller, JW, Miller, D, Moisseiev, J, Murphy, R, Narayanan, R, Randhawa, S, Raphaelian, PV, Rich, R, Rosen, R, Rosenfeld, P, Ruys, J, Sahel, J-A, Schwartz, S, Singerman, L, Sneed, S, Soubrane, G, Vingerling, JR, Warrow, D, Weinberg, D, Wolf, S, Wykoff, C, Yan, J, Yannuzzi, LA, and Zhuk, SA

Abstract

PURPOSE: To investigate the progression characteristics of ellipsoid zone (EZ) loss in eyes with macular telangiectasia type 2 (MacTel) as reflected by area and linear measurements, and their relevance for visual acuity. METHODS: Participants were selected from the MacTel Study cohort. Linear and area measurements of EZ loss were performed in Spectral-Domain Optical Coherence Tomograph (SD-OCT) volume scans. Progression characteristics and correlations between linear and area measurements were analysed using linear mixed effects models. RESULTS: A total of 134 eyes of 70 patients were included (85 eyes with follow-up, mean 4.7 years, range: 1.4-8 years). Ellipsoid zone (EZ) loss significantly progressed at a mean annual increment of 0.057 mm2 (p = 0.005). The progression rate was non-linear and interacted significantly with initial EZ lesion size indicating an exponential growth before reaching a plateau. There was a strong heterogeneity in area sizes between fellow eyes. EZ break length had a significant linear effect on EZ break area (b = 1.06, p < 0.001) and could predict it. The location of the EZ break had a significant impact on visual acuity. CONCLUSION: Ellipsoid zone (EZ) loss in MacTel has a non-linear progression characteristic, and its rate depends on area size at baseline, which must be taken into account at sample selection in clinical trials. Our results show a good correlation of linear and area measures of EZ loss and a segregation of best-corrected visual acuity by EZ location, which may help routine clinical practice.

Published
2019

30. 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, 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, 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, G, Di Maio, L, Rinaldi, C, Russo, Cv, 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, Chiara, P, Quaranta, D, Romano, Silvia, Soleti, F, Spadaro, M, van Hout MS, 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, Càrdenas R, Pons i., Roca, E, Llesoy, Jr, Idiago, Jm, Vergara, Mr, García, Ss, Villa Riballo, A, González, Sg, Guisasola, Lm, Salvador, C, San Martín ES, 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, Sánchez, Vs, 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., Orth, M, European Huntington's Disease, Network, Handley, Oj, Schwenke, C, Dunnett, S, Wild, Ej, Tabrizi, Sj, Bachoud Lévi AC, Landwehrmeyer G. 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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

31. NMDA receptor gene variations as modifiers in Huntington disease: a replication study

Author

Saft C, Epplen JT, Wieczorek S, Landwehrmeyer GB, Roos RA, de Yebenes JG, Dose M, Tabrizi SJ, Craufurd D, REGISTRY Investigators of the European Huntington's Disease Network, Arning L. CollaboratorsBarth K, Bascuñana Garde M, Bos R, Ecker D, Handley O, Heinonen N, Held C, Laurà M, Martínez Descals A, Mestre T, Monza D, Naji J, Orth M, Padieu H, Pro Koivisto S, Rialland A, Sasinková P, Trigo Cubillo P, van Walsem M, Witjes Ané MN, Zielonka D, Bonelli R, Herranhof B, Hödl A, Kapfhammer HP, Koppitz M, Magnet M, Otti D, Painold A, Reisinge K, Brugger F, Hepperger C, Hotter A, Mahlknecht P, Nocker M, Seppi K, Wenning G, Ribaï P, Verellen Dumoulin C, Klempí?? J, Kucharik M, Roth J, Hasholt L, Hjermind L, Jakobsen O, Nielsen J, Nørremølle A, Sørensen S, Stokholm J, Hiivola H, Martikainen K, Tuuha K, Kosinski C, Probst D, Sass C, Schiefer J, Schlangen C, Werner C, Lange H, Löhle M, Storch A, Wolz A, Wolz M, Lambeck J, Zucker B, Münchau A, Stubbe L, Zittel S, Heinicke W, Longinus B, Peinemann A, Städtler M, Weindl A, Bohlen S, Reilmann R, Beister A, Hammer K, Leythaeuser G, Marquard R, Raab T, Schrenk C, Schuierer M, Wiedemann A, Eschenbach C, Landwehrmeyer B, Lezius F, Trautmann S, Cormio C, Difruscolo O, de Tommaso M, Sciruicchio V, Serpino C, Bertini E, Mechi C, Paganini M, Piacentini S, Romoli M, Sorbi S, Abbruzzese G, Di Maria E, Bandettini di Poggio Giovanna Ferrandes M, Mandich P, Marchese R, Albanese A, Di Donato S, Mariotti C, Soliveri P, Gellera C, Tomasello C, Nanetti L, Luigi D, Squitieri F, Martino T, Orobello S, Alberti S, De Gregorio F, Codella V, De Nicola N, Maglione V, Bentivoglio A, Fasano A, Frontali M, Guidubaldi A, Ialongo T, Jacopini G, Loria G, Piano C, Romano S, Soleti F, Spadaro M, Zinzi P, Heiberg A, Bjørgo K, Fannemel M, Gørvell P, Retterstøl L, Bjørnevoll I, Botne Sando S, Slawek J, Soltan W, Sitek E, Boczarska Jedynak M, Jasinska Myga B, Opala G, Szczudlik A, Rudzi??ska M, Wójcik M, Banaszkiewicz K, Krawczyk M, Marcinkowski J, Ciesielska A, Sempo??owicz J, Bryl A, Klimberg A, Janik P, Kalbarczyk A, Kwiecinski H, Jamrozik Z, Witkowski G, Ryglewicz D, Antczak J, Rakowicz M, Jachinska K, Zdzienicka E, Richter P, Zaremba J, Coelho M, Ferreira J, Rosa M, Valadas A, Gago M, Garrett C, Guerra M, Barrero F, Morales B, López Sendón Moreno J, Cubo E, Mariscal N, Sánchez J, García R, Villanueva C, Pin Quiroga P, Bascuñana M, Fatàas M, Luis López Moreno J, García Ribas G, Schwarz C, de Yébenes JG, José Saiz Artiga M, García Ruíz P, Sánchez V, Fortuna Alcaraz L, Fuensanta Noguera Perea M, Martirio Antequera Torres M, Vivancos Moreau L, Rojo Sebastian A, Aguilar Barbera M, Badenes Guia D, Casas Hernanz L, Tome Carruesco G, Suarez San Martin E, López Catena J, Bas J, Calopa M, Busquets N, Navas Arques P, Gorospe A, Legarda I, José Torres Rodríguez M, Vives B, Carrillo F, Mir P, José Lama Suarez M, Loutfi G, Stattin EL, Westman L, Wikström B, Pålhagen S, Björnsson E, Burgunder JM, Romero I, Schüpbach M, Weber Zaugg S, van Hout M, van Vugt J, Marit de Weert A, Bolwijn JJ, Dekker M, Leenders KL, van Oostrom JC, Dumas E, Jurgens C, van den Bogaard SA, Roos R, Kremer B, Verstappen CC, de Souza J, Rickards H, Wright J, Barker R, Fisher K, Goyder Goodman A, Hill S, Kershaw A, Mason S, Paterson N, Raymond L, Bisson J, Busse M, Ellison Rose L, Hunt S, Price K, Rosser A, Dunnett S, Edwards M, De Sousa P, Hughes T, McGill M, Pearson P, Porteous M, Smith P, Zeman A, Lambord N, Rankin J, Burrows L, Fletcher A, Laver F, Silva M, Thomson A, Andrews T, Dougherty A, Kavalier F, Golding C, Lashwood A, Robertson D, Ruddy D, Whaite A, Patton M, Patterson M, Bourne C, Clayton C, Dipple H, Clapton J, Grant J, Gross D, Hallam C, Middleton J, Murch A, Patino D, Bruno S, Chu E, Doherty K, Lahiri N, Novak M, Patel A, Tabrizi S, Taylor R, Warner T, Wild E, Arran N, Fullam R, Howard L, Huson S, Partington Jones L, Verstraelen N, Snowden J, Sollom A, Stopford C, Thompson J, Westmoreland L, Nemeth A, Siuda G, Bandmann O, Bradbury A, Fillingham K, Foustanos I, Tidswell K, Quarrell O., DE MICHELE, GIUSEPPE, RINALDI, CARLO, RUSSO, CINZIA, SALVATORE, ELENA, TUCCI, TECLA, Saft C, Epplen JT, Wieczorek S, Landwehrmeyer GB, Roos RA, de Yebenes JG, Dose M, Tabrizi SJ, Craufurd D, REGISTRY Investigators of the European Huntington's Disease Network, Arning L. Collaborators (348), Saft, C, Epplen, Jt, Wieczorek, S, Landwehrmeyer, Gb, Roos, Ra, de Yebenes, Jg, Dose, M, Tabrizi, Sj, Craufurd, D, Russo, CINZIA VALERIA, Arning L., CollaboratorsBarth K, Bascuñana Garde, M, Bos, R, Ecker, D, Handley, O, Heinonen, N, Held, C, Laurà, M, Martínez Descals, A, Mestre, T, Monza, D, Naji, J, Orth, M, Padieu, H, Pro Koivisto, S, Rialland, A, Sasinková, P, Trigo Cubillo, P, van Walsem, M, Witjes Ané, Mn, Zielonka, D, Bonelli, R, Herranhof, B, Hödl, A, Kapfhammer, Hp, Koppitz, M, Magnet, M, Otti, D, Painold, A, Reisinge, K, Brugger, F, Hepperger, C, Hotter, A, Mahlknecht, P, Nocker, M, Seppi, K, Wenning, G, Ribaï, P, Verellen Dumoulin, C, Klempí??, J, Kucharik, M, Roth, J, Hasholt, L, Hjermind, L, Jakobsen, O, Nielsen, J, Nørremølle, A, Sørensen, S, Stokholm, J, Hiivola, H, Martikainen, K, Tuuha, K, Kosinski, C, Probst, D, Sass, C, Schiefer, J, Schlangen, C, Werner, C, Lange, H, Löhle, M, Storch, A, Wolz, A, Wolz, M, Lambeck, J, Zucker, B, Münchau, A, Stubbe, L, Zittel, S, Heinicke, W, Longinus, B, Peinemann, A, Städtler, M, Weindl, A, Bohlen, S, Reilmann, R, Beister, A, Hammer, K, Leythaeuser, G, Marquard, R, Raab, T, Schrenk, C, Schuierer, M, Wiedemann, A, Eschenbach, C, Landwehrmeyer, B, Lezius, F, Trautmann, S, Cormio, C, Difruscolo, O, de Tommaso, M, Sciruicchio, V, Serpino, C, Bertini, E, Mechi, C, Paganini, M, Piacentini, S, Romoli, M, Sorbi, S, Abbruzzese, G, Di Maria, E, Bandettini di Poggio Giovanna Ferrandes, M, Mandich, P, Marchese, R, Albanese, A, Di Donato, S, Mariotti, C, Soliveri, P, Gellera, C, Tomasello, C, Nanetti, L, Luigi, D, DE MICHELE, Giuseppe, Rinaldi, Carlo, Russo, Cinzia, Salvatore, Elena, Tucci, Tecla, Squitieri, F, Martino, T, Orobello, S, Alberti, S, De Gregorio, F, Codella, V, De Nicola, N, Maglione, V, Bentivoglio, A, Fasano, A, Frontali, M, Guidubaldi, A, Ialongo, T, Jacopini, G, Loria, G, Piano, C, Romano, S, Soleti, F, Spadaro, M, Zinzi, P, Heiberg, A, Bjørgo, K, Fannemel, M, Gørvell, P, Retterstøl, L, Bjørnevoll, I, Botne Sando, S, Slawek, J, Soltan, W, Sitek, E, Boczarska Jedynak, M, Jasinska Myga, B, Opala, G, Szczudlik, A, Rudzi??ska, M, Wójcik, M, Banaszkiewicz, K, Krawczyk, M, Marcinkowski, J, Ciesielska, A, Sempo??owicz, J, Bryl, A, Klimberg, A, Janik, P, Kalbarczyk, A, Kwiecinski, H, Jamrozik, Z, Witkowski, G, Ryglewicz, D, Antczak, J, Rakowicz, M, Jachinska, K, Zdzienicka, E, Richter, P, Zaremba, J, Coelho, M, Ferreira, J, Rosa, M, Valadas, A, Gago, M, Garrett, C, Guerra, M, Barrero, F, Morales, B, López Sendón Moreno, J, Cubo, E, Mariscal, N, Sánchez, J, García, R, Villanueva, C, Pin Quiroga, P, Bascuñana, M, Fatàas, M, Luis López Moreno, J, García Ribas, G, Schwarz, C, de Yébenes, Jg, José Saiz Artiga, M, García Ruíz, P, Sánchez, V, Fortuna Alcaraz, L, Fuensanta Noguera Perea, M, Martirio Antequera Torres, M, Vivancos Moreau, L, Rojo Sebastian, A, Aguilar Barbera, M, Badenes Guia, D, Casas Hernanz, L, Tome Carruesco, G, Suarez San Martin, E, López Catena, J, Bas, J, Calopa, M, Busquets, N, Navas Arques, P, Gorospe, A, Legarda, I, José Torres Rodríguez, M, Vives, B, Carrillo, F, Mir, P, José Lama Suarez, M, Loutfi, G, Stattin, El, Westman, L, Wikström, B, Pålhagen, S, Björnsson, E, Burgunder, Jm, Romero, I, Schüpbach, M, Weber Zaugg, S, van Hout, M, van Vugt, J, Marit de Weert, A, Bolwijn, Jj, Dekker, M, Leenders, Kl, van Oostrom, Jc, Dumas, E, Jurgens, C, van den Bogaard, Sa, Roos, R, Kremer, B, Verstappen, Cc, de Souza, J, Rickards, H, Wright, J, Barker, R, Fisher, K, Goyder Goodman, A, Hill, S, Kershaw, A, Mason, S, Paterson, N, Raymond, L, Bisson, J, Busse, M, Ellison Rose, L, Hunt, S, Price, K, Rosser, A, Dunnett, S, Edwards, M, De Sousa, P, Hughes, T, Mcgill, M, Pearson, P, Porteous, M, Smith, P, Zeman, A, Lambord, N, Rankin, J, Burrows, L, Fletcher, A, Laver, F, Silva, M, Thomson, A, Andrews, T, Dougherty, A, Kavalier, F, Golding, C, Lashwood, A, Robertson, D, Ruddy, D, Whaite, A, Patton, M, Patterson, M, Bourne, C, Clayton, C, Dipple, H, Clapton, J, Grant, J, Gross, D, Hallam, C, Middleton, J, Murch, A, Patino, D, Bruno, S, Chu, E, Doherty, K, Lahiri, N, Novak, M, Patel, A, Tabrizi, S, Taylor, R, Warner, T, Wild, E, Arran, N, Fullam, R, Howard, L, Huson, S, Partington Jones, L, Verstraelen, N, Snowden, J, Sollom, A, Stopford, C, Thompson, J, Westmoreland, L, Nemeth, A, Siuda, G, Bandmann, O, Bradbury, A, Fillingham, K, Foustanos, I, Tidswell, K, and Quarrell, O.

Abstract

Several candidate modifier genes which, in addition to the pathogenic CAG repeat expansion, influence the age at onset (AO) in Huntington disease (HD) have already been described. The aim of this study was to replicate association of variations in the N-methyl D-aspartate receptor subtype genes GRIN2A and GRIN2B in the "REGISTRY" cohort from the European Huntington Disease Network (EHDN). The analyses did replicate the association reported between the GRIN2A rs2650427 variation and AO in the entire cohort. Yet, when subjects were stratified by AO subtypes, we found nominally significant evidence for an association of the GRIN2A rs1969060 variation and the GRIN2B rs1806201 variation. These findings further implicate the N-methyl D-aspartate receptor subtype genes as loci containing variation associated with AO in HD.

Published
2011

32. 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

33. Magma ascent rates and depths of crustal magma reservoirs beneath the Aeolian volcanic Arc (Italy): Inferences from fluid and melt inclusions in xenoliths

Author

Frezzotti, M, Peccerillo, A, Bonelli, R, Bonelli, R., Frezzotti, M, Peccerillo, A, Bonelli, R, and Bonelli, R.

Abstract

Quartz-rich xenoliths in lavas and pyroclasts (basalts to rhyolites) from Alicudi, Salina, Filicudi Vulcano and Stromboli contain abundant fluid and melt inclusions, which bear striking similarities on a regional scale. Two main generations of CO2-rich (+/- H2O or N-2) fluid inclusions are present in quartz grains: early (Type 1) inclusions related to partial melting of the host xenoliths, and Type II inclusions trapped during xenolith ascent in the host magma. Homogenisation temperatures of fluid inclusions show a similar bimodal distribution, corresponding to two distinct density intervals: 0.9-0.5 (Type I) and 0.4-0.1 g/cm(3) (Type II). Early Type I fluid inclusions indicate trapping pressures between 0.6 and 0.3 GPa, which are representative for the levels of partial melting of crustal rocks and xenolith formation. Late Type II fluid inclusions show considerably lower trapping pressures, between 0.17 and 0.05 GPa, indicative for shallow magma rest and accumulation during ascent to the surface. The present study indicates ponding of mantle-derived magmas at lower crustal depths and at shallow levels. Deep crustal reservoirs (25-12 km) are present beneath the whole archipelago and indicate that substantial melting processes occur at middle to lower-crustal conditions. The main stages of anatexis, occur at these depths approximating the Moho, and may have been induced by a regional heating during underplating and intrusion of the continental crust by mantle-derived basaltic magmas. The shallow magma chambers (6-4 km) are fed by the deep-sited crustal reservoirs and are the site of evolutionary processes such as fractional crystallisation and mixing.

Published
2003

34. Evolution of the volcanic plumbing system of Alicudi (Aeolian Islands-Italy): evidence from fluid and melt inclusions in quartz xenoliths

Author

Bonelli, R, Frezzotti, M, Zanon, V, Peccerillo, A., Bonelli, R, Frezzotti, M, Zanon, V, and Peccerillo, A

Subjects
GEO/07 - PETROLOGIA E PETROGRAFIA, Fluid inclusions, Aeolian Islands, crustal xenoliths, magma plumbing system, GEO/08 - GEOCHIMICA E VULCANOLOGIA
Abstract

Quartz-rich xenoliths in lavas (basalts to andesites; 90-30 ka) from Alicudi contain abundant melt and fluid inclusions. Two generations Of CO(2)-rich fluid inclusions are present in quartz-rich xenolith grains: early (Type I) inclusions related to partial melting of the host xenoliths, and late Type II inclusions related to the fluid trapping during xenolith ascent. Homogenisation temperatures of fluid inclusions correspond to two density intervals: 0.93-0.68 g/cm(3) (Type I) and 0.47-0.26 g/cm(3) (Type II). Early Type I fluid inclusions indicate trapping pressures around 6 kbar, which are representative for the levels of partial melting of crustal rocks and xenolith formation. Late Type II fluid inclusions show lower trapping pressures, between 1.7 kbar and 0.2 kbar, indicative for shallow magma rest and accumulation during ascent to the surface, Data suggest the presence of two magma reservoirs: the first is located at lower crustal depths (about 24 km), site of fractional crystallization, mixing with source - derived magma, and various degrees of crustal assimilation. The second magma reservoir is located at shallow crustal depths (about 6 km), the site where magma rested for a short time before erupting

Published
2004

36. 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

37. NMDA receptor gene variations as modifiers in Huntington disease

Author

Saft, C, Epplen, Jt, Wieczorek, S, Landwehrmeyer, Gb, Roos, Ra, de Yebenes JG, Dose, M, Tabrizi, Sj, Craufurd, D, Arning, L, Barth, K, Bascuñana Garde, M, Bos, R, Ecker, D, Handley, O, Heinonen, N, Held, C, Laurà, M, Martínez Descals, A, Mestre, T, Monza, D, Naji, J, Orth, M, Padieu, H, Pro Koivisto, S, Rialland, A, Sasinková, P, Trigo Cubillo, P, van Walsem, M, Witjes Ané MN, Zielonka, D, Bonelli, R, Herranhof, B, Hödl, A, Kapfhammer, Hp, Koppitz, M, Magnet, M, Otti, D, Painold, A, Reisinge, K, Brugger, F, Hepperger, C, Hotter, A, Mahlknecht, P, Nocker, M, Seppi, K, Wenning, G, Ribaï, P, Verellen Dumoulin, C, Klempíř, J, Kucharik, M, Roth, J, Hasholt, L, Hjermind, L, Jakobsen, O, Nielsen, J, Nørremølle, A, Sørensen, S, Stokholm, J, Hiivola, H, Martikainen, K, Tuuha, K, Kosinski, C, Probst, D, Sass, C, Schiefer, J, Schlangen, C, Werner, C, Lange, H, Löhle, M, Storch, A, Wolz, A, Wolz, M, Lambeck, J, Zucker, B, Münchau, A, Stubbe, L, Zittel, S, Heinicke, W, Longinus, B, Peinemann, A, Städtler, M, Weindl, A, Bohlen, S, Reilmann, R, Beister, A, Hammer, K, Leythaeuser, G, Marquard, R, Raab, T, Schrenk, C, Schuierer, M, Wiedemann, A, Eschenbach, C, Landwehrmeyer, B, Lezius, F, Trautmann, S, Cormio, C, Difruscolo, O, de Tommaso, M, Sciruicchio, V, Serpino, C, Bertini, E, Mechi, C, Paganini, M, Piacentini, S, Romoli, M, Sorbi, S, Abbruzzese, G, Di Maria, E, Bandettini di Poggio Giovanna Ferrandes, M, Mandich, P, Marchese, R, Albanese, A, Di Donato, S, Mariotti, C, Soliveri, P, Gellera, C, Tomasello, C, Nanetti, L, Luigi, D, De Michele, G, Rinaldi, C, Russo, C, Salvatore, E, Tucci, T, Squitieri, F, Martino, T, Orobello, S, Alberti, S, De Gregorio, F, Codella, V, De Nicola, N, Maglione, V, Bentivoglio, A, Fasano, A, Frontali, M, Guidubaldi, A, Ialongo, T, Jacopini, G, Loria, G, Piano, C, Romano, Silvia, Soleti, F, Spadaro, M, Zinzi, P, Heiberg, A, Bjørgo, K, Fannemel, M, Gørvell, P, Retterstøl, L, Bjørnevoll, I, Botne Sando, S, Slawek, J, Soltan, W, Sitek, E, Boczarska Jedynak, M, Jasinska Myga, B, Opala, G, Szczudlik, A, Rudzińska, M, Wójcik, M, Banaszkiewicz, K, Krawczyk, M, Marcinkowski, J, Ciesielska, A, Sempołowicz, J, Bryl, A, Klimberg, A, Janik, P, Kalbarczyk, A, Kwiecinski, H, Jamrozik, Z, Witkowski, G, Ryglewicz, D, Antczak, J, Rakowicz, M, Jachinska, K, Zdzienicka, E, Richter, P, Zaremba, J, Coelho, M, Ferreira, J, Rosa, M, Valadas, A, Gago, M, Garrett, C, Guerra, M, Barrero, F, Morales, B, López Sendón Moreno, J, Cubo, E, Mariscal, N, Sánchez, J, García, R, Villanueva, C, Pin Quiroga, P, Bascuñana, M, Fatàas, M, Luis López Moreno, J, García Ribas, G, Schwarz, C, de Yébenes JG, José Saiz Artiga, M, García Ruíz, P, Sánchez, V, Fortuna Alcaraz, L, Fuensanta Noguera Perea, M, Martirio Antequera Torres, M, Vivancos Moreau, L, Rojo Sebastian, A, Aguilar Barbera, M, Badenes Guia, D, Casas Hernanz, L, Tome Carruesco, G, Suarez San Martin, E, López Catena, J, Bas, J, Calopa, M, Busquets, N, Navas Arques, P, Gorospe, A, Legarda, I, José Torres Rodríguez, M, Vives, B, Carrillo, F, Mir, P, José Lama Suarez, M, Loutfi, G, Stattin, El, Westman, L, Wikström, B, Pålhagen, S, Björnsson, E, Burgunder, Jm, Romero, I, Schüpbach, M, Weber Zaugg, S, van Hout, M, van Vugt, J, Marit de Weert, A, Bolwijn, Jj, Dekker, M, Leenders, Kl, van Oostrom JC, Dumas, E, Jurgens, C, van den Bogaard SA, Roos, R, Kremer, B, Verstappen, Cc, de Souza, J, Rickards, H, Wright, J, Barker, R, Fisher, K, Goyder Goodman, A, Hill, S, Kershaw, A, Mason, S, Paterson, N, Raymond, L, Bisson, J, Busse, M, Ellison Rose, L, Hunt, S, Price, K, Rosser, A, Dunnett, S, Edwards, M, De Sousa, P, Hughes, T, Mcgill, M, Pearson, P, Porteous, M, Smith, P, Zeman, A, Lambord, N, Rankin, J, Burrows, L, Fletcher, A, Laver, F, Silva, M, Thomson, A, Andrews, T, Dougherty, A, Kavalier, F, Golding, C, Lashwood, A, Robertson, D, Ruddy, D, Whaite, A, Patton, M, Patterson, M, Bourne, C, Clayton, C, Dipple, H, Clapton, J, Grant, J, Gross, D, Hallam, C, Middleton, J, Murch, A, Patino, D, Bruno, S, Chu, E, Doherty, K, Lahiri, N, Novak, M, Patel, A, Tabrizi, S, Taylor, R, Warner, T, Wild, E, Arran, N, Fullam, R, Howard, L, Huson, S, Partington Jones, L, Verstraelen, N, Snowden, J, Sollom, A, Stopford, C, Thompson, J, Westmoreland, L, Nemeth, A, Siuda, G, Bandmann, O, Bradbury, A, Fillingham, K, Foustanos, I, Tidswell, K, and Quarrell, O.

Subjects
Genetics, biology, business.industry, Medicine (miscellaneous), Disease, Bioinformatics, Huntington Disease, Cohort, biology.protein, Medicine, GRIN2A, NMDA receptor, GRIN2B, business, Trinucleotide repeat expansion, Gene, Modifier Genes
Abstract

Several candidate modifier genes which, in addition to the pathogenic CAG repeat expansion, influence the age at onset (AO) in Huntington disease (HD) have already been described. The aim of this study was to replicate association of variations in the N-methyl D-aspartate receptor subtype genes GRIN2A and GRIN2B in the "REGISTRY" cohort from the European Huntington Disease Network (EHDN). The analyses did replicate the association reported between the GRIN2A rs2650427 variation and AO in the entire cohort. Yet, when subjects were stratified by AO subtypes, we found nominally significant evidence for an association of the GRIN2A rs1969060 variation and the GRIN2B rs1806201 variation. These findings further implicate the N-methyl D-aspartate receptor subtype genes as loci containing variation associated with AO in HD.

Published
2011

40. Nano-sized Au/FeOx catalysts for environmental applications

Author

Bonelli, R, Albonetti, S, Delaigle, R, Femoni, C, Gaigneaux, E, Riccobene, Pm, Scire', Salvatore, Tiozzo, C, Zacchini, S., R. Bonelli, S.Albonetti, R. Delaigle, E. M. Gaigneaux, C. Femoni, P.M. Riccobene, S. Scirè, C. Tiozzo, and S.Zacchini

Abstract

In the literature there are several studies concerning the use of gold-based catalysts for environmental applications. It has been recently reported that gold catalysts exhibit high performance in the deep oxidation of different molecules and are potentially capable of being employed in fuel cells for CO traces removal by preferential CO oxidation in H2-rich streams (PROX reaction) [1-2]. Several studies demonstrated the addition of an iron component to gold supported catalysts brings a beneficial effect in terms of enhanced activity, selectivity and resistance to deactivation. Thus, we designed catalysts containing iron stabilized gold nanoparticles with a controlled size and an intimate contact between gold and iron using bimetallic carbonyl clusters as precursors of the active phase [3]. Carbonyl metal clusters are, in fact, quite attractive since their chemistry is well developed, they can be prepared with different sizes and composition and be decomposed under very mild conditions.

Published
2010

41. Gold/Iron oxide supported catalysts for environmental applications

Author

Albonetti, S, Bonelli, R, Delaigle, R, Femoni, C, Gaigneaux, E, Riccobene, Pm, Scire', Salvatore, Tiozzo, C, Zacchini, S., A CURA DI A.M. VENEZIA, S. Albonetti, R. Bonelli, R. Delaigle, C. Femoni, E M. Gaigneaux, P. M. Riccobene, S. Scirè, C. Tiozzo, and S. Zacchini

Abstract

A novel preparation method was developed for the preparation of gold/iron supported catalysts on TiO2 and CeO2 by employing bi-metallic carbonyl cluster salts. All prepared catalysts were fully characterized and tested in toluene and methanol total oxidation and in PROX reaction. The novel preparation method resulted in small gold metallic nanoparticles surrounded by highly dispersed amorphous iron oxide species on the supports. Results confirmed that FeOx species stabilize small Au particles. Partial encapsulation of gold atoms by iron species was also observed together with a strong interaction between gold and oxide species (both iron oxide and reducible supports). The presence of gold has been found to enhance the activity of iron oxide towards both the complete oxidation of toluene and methanol to CO2 and the PROX reaction. The extent of this positive effect resulted to be dependent on the adsorption properties of the organic molecule (toluene vs methanol), the support used and the interaction degree between FeOx and Au species. Moreover, CO preferential oxidation was found to strongly depend on Au particle size and surface oxygen reducibility, being related to the different oxide species which can be formed using different thermal treatment conditions or iron loadings over the support. The use of carbonyl clusters to synthesize bimetallic catalysts is a promising way to obtain iron stabilized gold nanoparticles and could find application even on support on which stabilization of gold is usually very difficult. In this way catalysts with highly dispersed active phase and an enhanced catalytic activity were obtained.

Published
2010

47. The role of acidity in the decomposition of chlorinated organics over V2O5/TiO2 based catalysts

Author

Albonetti, S, Blasioli, S, Bonelli, R, EPOUPA MENGOU, J, Scire', Salvatore, Trifirò, F., I. SOBCZAK, M. TREJDA, M. ZIOLEK, S. Albonetti, S. Blasioli, R. Bonelli, J. Epoupa Mengou, S. Scirè, and F. Trifirò

Abstract

The oxidation of 1,2-dichlorobenzene (o-DCB) over supported vanadium catalysts was investigated. The work was mainly aimed at investigating the effect of this parameter on catalytic performances and to evaluate the role of catalyst acidity in obtaining partial oxidation molecules versus complete decomposition utilizing V2O5/TiO2 based catalysts.

Published
2008

50. Bulging medial edge epithelial cells and palatal fusion

Author

Martinez-Alvarez, C., Bonelli, R., Tudela, C., ANGEL GATO, Mena, J., O Kane, S., and Ferguson, M. W. J.

Subjects
Time Factors, Palate, Epithelial Cells, Cadherins, Embryo, Mammalian, Immunohistochemistry, Actins, Vinculin, Cytoskeletal Proteins, Mice, Chondroitin Sulfate Proteoglycans, Cell Adhesion, Microscopy, Electron, Scanning, Trans-Activators, Animals, beta Catenin
Abstract

The surface of the medial edge epithelium of embryonic day 12, 13 and 14 mouse palatal shelves was observed utilising Environmental Scanning Electron Microscopy (ESEM). This technique offers the advantage of visualisation of biological samples after short fixation times in their natural hydrated state. Bulging epithelial cells were observed consistently on the medial edge epithelium prior to palatal shelf fusion. Additionally, we have used ESEM to compare the morphology and surface features of palatal shelves from embryonic day 13 to 16 mouse embryos that are homozygous null (TGF-beta3 -/-), heterozygous (TGF-beta3 +/-) or homozygous normal (TGF-beta3 +/+) for transforming growth factor beta-3 (TGF-beta3). At embryonic day 15 and 16 most TGF-beta3 +/- and +/+ embryos showed total palatal fusion, whilst all TGF-beta3 null mutants had cleft palate: the middle third of the palatal shelves had adhered, leaving an anterior and posterior cleft. From embryonic day 14 to 16 abundant cells were observed bulging on the medial edge epithelial surface of palates from the TGF-beta3 +/- and +/+ embryos. However, they were never seen in the TGF-beta3 null embryos, suggesting that these surface bulges might be important in palatal fusion and that their normal differentiation is induced by TGF-beta3. The expression pattern of E-Cadherin, beta-catenin, chondroitin sulphate proteoglycan, beta-Actin and vinculin as assayed by immunocytochemistry in these cells shows specific variations that suggest their importance in palatal shelf adhesion.

Published
2000

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