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Familial amyotrophic lateral sclerosis in Alberta, Canada.
MedLine Citation:
PMID:  23286750     Owner:  NLM     Status:  Publisher    
Systematic review data demonstrate that 5% of ALS cases are familial (FALS). Causative superoxide dismutase-1 (SOD1) mutations are identified in 10-20% of FALS. Few reports of FALS epidemiology exist in Canada. We completed a retrospective review of all FALS cases within the province of Alberta between 2002 and 2011. Descriptive summaries of genotypes identified and calculation of prevalences were performed. We reviewed 946 clinic database records and 49 subjects with FALS were identified (5.2%). Clinic charts for 47/49 were available and reviewed. Causative SOD1 mutations were observed in 17/47 (36%). The SOD1 I113T mutation was identified in 11/47 unrelated patients and was associated with a less variable survival than previously reported. The period and point prevalences of FALS in Alberta are approximately 2.05 per 100,000 (95% CI 1.51-2.73) and 4.68 per 1,000,000 (95% CI 2.42-8.18), respectively. In conclusion, we report 47 cases of FALS in Alberta over the past decade. The proportion of SOD1-positive FALS cases is higher than reported elsewhere. The high proportion of I113T mutations is comparable to that previously observed in the adjacent province of British Columbia.
Ted Pfister; Ramnik Sekhon; Mitchell White; Patrick Scott; Susan Munro; Megan Johnston; Sanjay Kalra; Lawrence Korngut
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-4
Journal Detail:
Title:  Amyotrophic lateral sclerosis and frontotemporal degeneration     Volume:  -     ISSN:  2167-9223     ISO Abbreviation:  Amyotroph Lateral Scler Frontotemporal Degener     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101587185     Medline TA:  Amyotroph Lateral Scler Frontotemporal Degener     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary , Calgary.
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