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No association between the intronic presenilin-1 polymorphism and Alzheimer's disease in clinic and population-based samples

✍ Scribed by Cai, Xingang; Stanton, Judith; Fallin, Dani; Hoyne, Jonathan; Duara, Ranjan; Gold, Michael; Sevush, Steve; Scibelli, Paul; Crawford, Fiona; Mullan, Michael

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
64 KB
Volume
74
Category
Article
ISSN
0148-7299

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✦ Synopsis

Mutations in the Presenilin 1 (PS1) gene on chromosome 14 cause most early-onset familial Alzheimer's disease (AD). An intronic polymorphism in the PS1 gene was recently identified and reported to be associated with late-onset AD [Wragg et al., Lancet 347: 509-512, 1996]. The authors found an excess of homozygotes for the more common allele (allele 1) in AD cases, associated with an approximate doubling of risk. In the present study, we report the PS1 polymorphism distributions in clinic and population-based samples. We were not able to replicate the findings of Wragg et al. [1996]. Our results are consistent with those of other researchers and do not support the conclusion that the PS1 polymorphism is associated with late-onset AD.

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