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ORIGINAL ARTICLE
Year : 2019  |  Volume : 22  |  Issue : 3  |  Page : 380-385

The relationship between plasma homocysteine levels and MTHFR gene variation, age, and sex in Northeast China


1 Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
2 Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang; Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
3 Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China

Correspondence Address:
X Sui
The First Affiliated Hospital of Jiamusi University, Department of Geriatric Medicine, No. 348, Dexiang Street, Jiamusi City, Heilongjiang Province
People's Republic of China
Dr. Z Yang
Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, No. 1 DaHua Road, Dong Dan, Beijing - 100730
People's Republic of China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/njcp.njcp_291_18

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Background: Hyperhomocysteinemia (HHcy) is the risk factor for cardiovascular disease and stroke. However, the impacts on the genetic variation of methylene tetrahydrofolate reductase (MTHFR) on plasma homocysteine levels in the Northeast Chinese population have not been studied. Therefore, this study was carried out to determine the relationship between HHcy and MTHFR gene variation, and whether it was influenced by age and sex of the population in Northeast China. Materials and Methods: A total of 466 subjects were randomly enrolled in this study. According to the homocysteine levels (Hcy ≥ 15 μmol/L) of the subjects, they were divided into hyperhomocysteine (HHcy = 206) and normal homocysteine (Hcy = 260). Polymerase chain reaction/high-resolution dissolution curve and homocysteine determination kit methods were used for genotype testing and homocysteine detection, respectively. Results: High plasma homocysteine levels are associated with MTHFR 677T and 1298A [P < 0.00, odds ratio (confidence interval) = 1.842 (1.418–2.394) >1], which is related to increasing age (Prange = 0.0005–0.0161), with the homocysteine levels of males higher than females (P < 0.0001). Conclusion: High plasma homocysteine levels were linked to the MTHFR gene mutation. In addition, plasma homocysteine levels increased significantly with age with male's homocysteine levels higher than that of females.


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