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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
The MTHFR 677T allele may influence the severity and biochemical risk factors of Alzheimer's disease in an Egyptian population
Disease Markers, Volume 35, No. 5, Year 2013
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Description
Objective. We evaluated whether the methylenetetrahydrofolate reductase (MTHFR) 677C>T marker influences the risk and severity of Alzheimer's disease (AD) and whether AD is associated with homocysteine, vitamin B12, and cholesterol levels in Egypt. Methods. Forty-three Alzheimer's cases and 32 non-AD controls were genotyped for the 677C>T polymorphism. Clinical characteristics and levels of homocysteine, vitamin B12, and cholesterol were assessed. Results. No significant differences in the frequencies of the MTHFR alleles or genotypes between AD cases and controls (P = 0.14) were identified. The 677T mutant allele was significantly overrepresented in AD cases compared to controls (OR = 2.22; P = 0.03). The 677T/T frequency was three times higher in AD patients than in controls, which could increase plasma homocysteine levels. Severe cases of AD were the most frequent in patients with the T/T genotype (11.6%).The effect of the MTHFR polymorphism on the risk of A Dmay be independent of homocysteine, vitamin B12, or even cholesterol levels. Conclusions. The MTHFR 677C>T polymorphism-especially the presence of one copy of the T allele-appears to confer a potential risk for the development of AD. The T/T genotype may contribute to hypercysteinemia as a sensitive marker. Copyright © 2013 Peter Kruzliak et al.
Authors & Co-Authors
Elhawary, N. A.
Saudi Arabia, Makkah
Umm Al-qura University
Egypt, Cairo
Ain Shams University
Hewedi, Doaa H.
Egypt, Cairo
Faculty of Medicine - Ain Shams University
Arab, Arwa H.
Saudi Arabia, Jeddah
King Abdulaziz University
Teama, Salwa H.H.
Egypt, Cairo
Faculty of Medicine - Ain Shams University
Shaibah, Hassan
Saudi Arabia, Makkah
Umm Al-qura University
Tayeb, Mohammed Taher
Saudi Arabia, Makkah
Umm Al-qura University
Bogari, Neda Mustafa
Saudi Arabia, Makkah
Umm Al-qura University
Statistics
Citations: 25
Authors: 7
Affiliations: 4
Identifiers
Doi:
10.1155/2013/524106
Research Areas
Genetics And Genomics
Study Design
Cross Sectional Study
Study Locations
Egypt