Methylenetetrahydrofolate reductase gene polymorphism in diabetes and obesity |
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Authors: | Javad Tavakkoly Bazzaz Mahnaz Shojapoor Habibollah Nazem Parvin Amiri Hossein Fakhrzadeh Ramin Heshmat Maryam Parvizi Shirin Hasani Ranjbar Mahsa M Amoli |
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Institution: | (1) Endocrinology and Metabolism Research Centre, Tehran University of Medical Sciences, Tehran, Iran;(2) Department of Science, Payamnoor University, Tehran, Iran;(3) EMRC, Dr Shariati Hospital, North Karegar St., 14114 Tehran, Iran; |
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Abstract: | Methylenetetrahydrofolate reductase (MTHFR) polymorphism may play an important role in the pathophysiology of obesity and
diabetes accompanied by obesity due to its influence on plasma homocysteine levels. There are significant and sometimes very
strong relationship between levels of homocysteine and several multi-system diseases including CHD and CVA. To examine the
association between MTHFR gene C677T polymorphism in diabetes and obesity with serum homocysteine levels. A total of 682 subjects
were recruited in four groups (Normal, obese, diabetic and obese and diabetics). MTHFR gene C677T polymorphism was detected
using PCR-RFLP technique. Serum homocysteine levels were measured using HPLC. There was a significant increase in the mean
serum homocysteine levels in subjects carrying TT genotype (34.6 ± 26.5) compared to subjects carrying CC (15.1 ± 8) or CT
genotype (16.4 ± 7.8) (P < 0.000). We found no significant differences for MTHFR allele and genotype frequencies between different groups. Our data
have confirmed the association between serum homocysteine levels and MTHFR C677T genotype reported in other populations. |
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