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Lajin, B; Alhaj Sakur, A; Michati, R; Alachkar, A.
Association between MTHFR C677T and A1298C, and MTRR A66G polymorphisms and susceptibility to schizophrenia in a Syrian study cohort.
Asian J Psychiatr. 2012; 5(2):144-149 Doi: 10.1016/j.ajp.2012.03.002
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Leading authors Med Uni Graz: Lajin Bassam
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Abstract:: The folate-homocystiene metabolic pathway has been shown to be involved in the susceptibility for developing schizophrenia by several studies. In the present study we investigated the role of three common polymorphisms of the folate-homocysteine metabolic pathway in an Arab population from Syria consisting of 85 schizophrenic patients and 126 healthy controls. The studied polymorphisms included the MTHFR C677T and A1298C, and MTRR A66G, all of which result into amino acid changes, and were previously shown to yield decreased enzymatic activity and alter plasma homocysteine concentration. While MTHFR C677T and A1298C polymorphisms were not previously studied in an Arab population with respect to the susceptibility for developing schizophrenia, the MTRR A66G was not previously investigated in any population around the world. Our results indicated a strong association between MTHFR A1298C and schizophrenia. The variant C allele frequency was significantly higher in the patients group (40% vs 29.4%, OR=1.6, 95% CI (1.06-2.41), p=0.023). A statistically significant association was found for MTHFR 677TT genotype under the recessive model in the male patients subgroup (OR=2.6, 95% CI (1.04-6.5), p=0.036), and MTHFR 677CT genotype under the overdominant model in the total patients group (OR=0.52 95% CI (0.29-0.92), p=0.024). No statistically significant association was found for MTRR A66G polymorphism on an individual basis. However, a borderline association was found for the CC/GG (C677T/A66G) compound genotype (OR=2.24, 95% CI (0.97-5.15), p=0.053). Our results support the hypothesis of association between schizophrenia and folate-homocystiene metabolic pathway genes. Copyright © 2012 Elsevier B.V. All rights reserved.
Find related publications in this database (using NLM MeSH Indexing): Adult -; Alleles -; Cohort Studies -; Female -; Ferredoxin-NADP Reductase - genetics; Genetic Association Studies -; Genetic Predisposition to Disease - genetics; Genotype -; Humans -; Male -; Methylenetetrahydrofolate Reductase (NADPH2) - genetics; Polymorphism, Genetic - genetics; Schizophrenia - enzymology; Schizophrenia - genetics; Schizophrenia -