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  • Title: [The G894T mutation of the endothelial nitric oxide synthase gene is associated with coronary atherosclerotic heart disease in Chinese].
    Author: Wei D, Shan J, Chen Z, Shi Y.
    Journal: Zhonghua Yi Xue Yi Chuan Xue Za Zhi; 2002 Dec; 19(6):471-4. PubMed ID: 12476417.
    Abstract:
    OBJECTIVE: To investigate the association of the endothelial nitric oxide synthase (eNOS) gene polymorphism with coronary atherosclerotic heart disease (CHD) in Chinese Han nationality. METHODS: For 106 patients with CHD and 108 unrelated health individuals, the G894T mutation at exon 7 of the endothelial nitric oxide synthase gene was studied by using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. RESULTS: (1) Among the normal subjects of Chinese Han nationality, the frequencies of the eNOS/GG, GT and TT genotypes were 0.9095, 0.0883 and 0.0021, respectively. The G and T allele frequencies were 0.9537 and 0.0463. (2) The authors assumed the effects of the T allele to be dominant (GT and TT combined vs GG). The GT+TT genotype frequencies in CHD and myocardial infarction (MI) subgroup were 0.2219 and 0.2387, respectively. The frequencies of eNOS/GT+TT genotypes in CHD patients, as well as MI subgroup were significantly higher than that of the normal subjects (P<0.05), respectively. The frequencies of T allele in CHD, MI subgroup were significantly higher than that in the normal subjects (P<0.01), respectively. (3) This mutation was not related to the number of affected vessels in the 58 patients who had angiographically documented artery narrowing (P>0.05). CONCLUSION: The G894T mutation of the endothelial nitric oxide synthase gene may be a marker for genetical predisposition of CHD in Chinese Han population.
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