Association of MS4A6A, CD33, and TREM2 gene polymorphisms with the late-onset Alzheimer’s disease

Elham Mehdizadeh, Mohammad Khalaj-Kondori, Zeinab Shaghaghi-Tarakdari, Saeed Sadigh-Eteghad, Mahnaz Talebi*, Sasan Andalib

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Abstrakt

Introduction: Alzheimer’s disease (AD), which is a progressive neurodegenerative disorder, causes structural and functional brain disruption. MS4A6A, TREM2, and CD33 gene polymorphisms loci have been found to be associated with the pathobiology of late-onset AD (LOAD). In the present study, we tested the hypothesis of association of LOAD with rs983392, rs75932628, and rs3865444 polymorphisms in MS4A6A, TREM2, CD33 genes, respectively. Methods: In the present study, 113 LOAD patients and 100 healthy unrelated age- and gender-matched controls were selected. DNA was extracted from blood samples by the salting-out method and the genotyping was performed by RFLP-PCR. Electrophoresis was carried out on agarose gel. Sequencing was thereafter utilized for the confirmation of the results. Results: Only CD33 rs3865444 polymorphism revealed a significant difference in the genotypic frequencies of GG (P=0.001) and GT (P=0.001), and allelic frequencies of G (P=0.033) and T (P=0.03) between LOAD patients and controls. Conclusion: The evidence from the present study suggests that T allele of CD33 rs3865444 polymorphism is associated with LOAD in the studied Iranian population.

OriginalsprogEngelsk
TidsskriftBioImpacts
Vol/bind9
Udgave nummer4
Sider (fra-til)219-225
ISSN2228-5652
DOI
StatusUdgivet - 1. jan. 2019

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