Article
The genotype 2/2 of the presenilin-1 polymorphism is decreased in Spanish early-onset Alzheimer's disease.
Neuroscience letters - 23 May 1997
Ezquerra M, Blesa R, Tolosa E, Lopez Pousa S, Aguilar M, Peña J, Van Broeckhoven C, Ballesta F, Oliva R
Abstract excerpt
We have found a significantly lower frequency of the presenilin-1 (PS-1) intronic polymorphism 2/2 genotype in early-onset Alzheimer's disease (AD) patients without APOE epsilon4 alleles (2/2 = 0.054; P = 0.009) as compared to age matched non-epsilon4 controls (2/2 = 0.227). Moreover the average age of onset in AD patients with the PS-1 2/2 genotype is older than that in AD patients with a 1/2 genotype or with a...
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