Genetic study between SIRT1, PPARD, PGC-1α genes and Alzheimer’s disease
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- Helisalmi, S., Vepsäläinen, S., Hiltunen, M. et al. J Neurol (2008) 255: 668. doi:10.1007/s00415-008-0774-1
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Single nucleotide polymorphisms (SNPs) in three diabetes-related genes (SIRT1, PPARD, PGC-1α) were investigated with a case-control approach. To examine the genetic association of those genes with Alzheimer’s disease (AD) risk, we used the TaqMan technique to genotype five SNP sites for SIRT1, six for PPARD and eight for the PGC-1α gene, in 326 Finnish AD cases and 463 controls and conducted a single allele and genotypic distribution comparison as well as estimated haplotype frequencies between cases and controls. No significant differences in AD risk were found in single SNP and haplotype analyses for any of the three genes between 326 cases and 463 controls. However, in a subgroup of women older than 65 years, the frequencies of three SNPs in the SIRT1 gene were significantly different between AD and controls. We conclude that there is no real association with SNPs available in the present study between SIRT1, PPARD or PGC-1α genes and AD risk in the Finnish population.