1. C9ORF72 hexanucleotide repeat expansions in the Italian sporadic ALS population
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Mario, Sabatellia, Francesca Luisa Conforti, Marcella, Zollinoc, Gabriele, Morad, Maria Rosaria Monsurrò, Paolo, Volanti, Kalliopi, Marinoud, Fabrizio, Salvig, Massimo, Corbo, Fabio, Giannini, Stefania, Battistini, Silvana, Penco, Christian, Lunetta, Aldo, Quattrone, Antonio, Gambardella, Giancarlo, Logroscino, Isabella, Simone, Ilaria, Bartolomei, Fabrizio, Pisano, Gioacchino, Tedeschi, Amelia, Conte, Rossella, Spataro, Vincenzo La Bella, Claudia, Caponnetto, Gianluigi, Mancardi, Paola, Mandich, Patrizia, Sola, Jessica, Mandrioli, Renton, Alan E., Elisa, Majounie, Yevgeniya, Abramzon, Francesco, Marrosu, Maria Giovanna Marrosu, Maria Rita Murru, Maria Alessandra Sotgiu, Maura, Pugliatti, Rodolico, Carmelo, the ITALSGEN Consortium: Stefania Cammarosano, Giuseppe, Fuda, Antonio, Canosa, Sara, Gallo, Laura, Papetti, Giuseppe Lauria Pinter, Marco, Luigetti, Serena, Lattante, Giuseppe, Marangi, Tiziana, Colletti, Claudia, Ricci, Paola, Origone, Gianluca, Floris, Antonino, Cannas, Valeria, Piras, Emanuela, Costantino, Carla, Pani, Parish, Leslie D., Paola, Cossu, Giuliana, Solinas, Lucia, Ulgheri, Anna, Ticca, Francesco, Izzo, Anna, Laiola, Francesca, Trojsi, Portaro, Simona, William, Sproviero, Cristina, Moglia, Andrea, Calvo, Irene, Ossola, Maura, Brunetti, Traynor, Bryan J., Giuseppe, Borghero, Gabriella, Restagno, Adriano, Chiò, Sabatelli, M, Conforti, Fl, Zollino, M, Mora, G, Monsurro', Maria Rosaria, Volanti, P, Marinou, K, Salvi, F, Corbo, M, Giannini, F, Battistini, S, Penco, S, Lunetta, C, Quattrone, A, Gambardella, A, Logroscino, G, Simone, I, Bartolomei, I, Pisano, F, Tedeschi, Gioacchino, Conte, A, Spataro, R, La Bella, V, Caponnetto, C, Mancardi, G, Mandich, P, Sola, P, Mandrioli, J, Renton, Ae, Majounie, E, Abramzon, Y, Marrosu, F, Marrosu, Mg, Murru, Mr, Sotgiu, Ma, Pugliatti, M, Rodolico, C, ITALSGEN Consortium: Cammarosano, Stefania, Fuda, Giuseppe, Canosa, Antonio, Gallo, Sara, Papetti, Laura, Lauria Pinter, Giuseppe, Luigetti, Marco, Lattante, Serena, Marangi, Giuseppe, Colletti, Tiziana, Ricci, Claudia, Origone, Paola, Floris, Gianluca, Cannas, Antonino, Piras, Valeria, Costantino, Emanuela, Pani, Carla, Parish, Leslie D, Cossu, Paola, Solinas, Giuliana, Lucia, U. l. g. h. e. r. i., Ticca, Anna, Izzo, Francesco, Laiola, Anna, Trojsi, Francesca, Portaro, Simona, Sproviero, William, Moglia, C, Calvo, A, Ossola, I, Brunetti, M, Traynor, Bj, Borghero, G, Restagno, G, Chiò, A., Sabatelli, M., Conforti, F., Zollino, M., Mora, G., Monsurrò, M., Volanti, P., Marinou, K., Salvi, F., Corbo, M., Giannini, F., Battistini, S., Penco, S., Lunetta, C., Quattrone, A., Gambardella, A., Logroscino, G., Simone, I., Bartolomei, I., Pisano, F., Tedeschi, G., Conte, A., Spataro, R., LA BELLA, V., Caponnetto, C., Mancardi, G., Mandich, P., Sola, P., Mandrioli, J., Renton, A., Majounie, E., Abramzon, Y., Marrosu, F., Marrosu, M., Murru, M., Sotgiu, M., Pugliatti, M., Rodolico, C., Italsgen, C., Moglia, C., Calvo, A., Ossola, I., Brunetti, M., Traynor, B., Borghero, G., and Restagno, G.
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Male ,Aging ,Survival ,Pedigree chart ,Settore MED/03 - GENETICA MEDICA ,Repetitive Sequences ,0302 clinical medicine ,C9orf72 ,Polymorphism (computer science) ,Risk Factors ,Prevalence ,Amyotrophic lateral sclerosis ,Genetics ,0303 health sciences ,education.field_of_study ,General Neuroscience ,Single Nucleotide ,Middle Aged ,3. Good health ,Settore MED/26 - NEUROLOGIA ,Italy ,Female ,Settore MED/26 - Neurologia ,Frontotemporal dementia ,Genetic Markers ,Population ,C9ORF72 ,Biology ,Polymorphism, Single Nucleotide ,Article ,03 medical and health sciences ,medicine ,Humans ,Genetic Predisposition to Disease ,Polymorphism ,education ,amyotrophic lateral sclerosis ,C9orf672 ,frontotemporal dementia ,survival ,Amyotrophic lateral sclerosi ,030304 developmental biology ,Repetitive Sequences, Nucleic Acid ,sporadic ,C9orf72 Protein ,Nucleic Acid ,Amyotrophic lateral sclerosis, C9ORF72, Frontotemporal dementia, Survival ,Genetic Variation ,Proteins ,medicine.disease ,Settore BIO/18 - Genetica ,Neurology (clinical) ,Geriatrics and Gerontology ,ALS ,Trinucleotide repeat expansion ,030217 neurology & neurosurgery ,Developmental Biology - Abstract
It has been recently reported that a large proportion of patients with familial amyotrophic lateral sclerosis (familial ALS) and frontotemporal dementia (FTD) are associated with a hexanucleotide (GGGGCC) repeat expansion in the first intron of C9ORF72. We have assessed 1,757 Italian sporadic ALS cases, 133 from Sardinia, 101 from Sicily, and 1,523 from mainland Italy. Sixty (3.7%) of 1,624 mainland Italians and Sicilians and 9 (6.8%) of the 133 Sardinian sporadic ALS cases carried the pathogenic repeat expansion. None of the 619 regionally-matched control samples (1,238 chromosomes) carried the expansion. Twenty-five cases (36.2%) had behavioral FTD in addition to ALS. FTD or unspecified dementia was also detected in 19 pedigrees (27.5%) in first-degree relatives of ALS patients. Cases carrying the C9ORF72 hexanucleotide expansion survived one year less than cases who did not carry this mutation. In conclusion, we found that C9ORF72 hexanucloetide repeat expansions represents a sizeable proportion of apparent sporadic ALS in the Italian and Sardinian population, representing by far the commonest mutation in Italy and the second more common in Sardinia.