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  • Title: [Association of the genetic variations of bone morphogenetic protein 7 gene with diabetes and insulin resistance in Xinjiang Uygur population].
    Author: Yan ZT, Li NF, Guo YY, Yao XG, Wang HM, Hu JL.
    Journal: Zhonghua Yi Xue Yi Chuan Xue Za Zhi; 2011 Jun; 28(3):287-92. PubMed ID: 21644225.
    Abstract:
    OBJECTIVE: To investigate the association between the genetic variations of the functional region in bone morphogenetic protein gene (BMP7) with type 2 diabetes mellitus in Chinese Uygur individuals. METHODS: A case-control study was conducted based on epidemiological investigation. A total of 717 Uygur subjects (276 males and 441 females) were selected and divided into two groups: diabetes mellitus group (n = 502, 191 males and 311 females) and control group (n = 215, 85 males and 130 females). All exons, flanking introns and the promoter regions of (BMP7) gene were sequenced in 48 Uygur diabetics. Representative variations were selected according to the minor allele frequency (MAF) and linkage disequilibrium and genotyped using the TaqMan polymerase chain reaction method in 717 Uygur individuals, a relatively isolated general population in a relatively homogeneous environment and a case-control study was conducted to test the association between the genetic variations of (BMP7) gene and type 2 diabetes mellitus. RESULTS: Five novel and 8 known variations in the (BMP7) gene were identified. All genotype distributions were tested for deviations from Hardy-Weinberg equilibrium (P> 0.05). There was significant difference of genotype distribution of rs6025422 between type 2 diabetes mellitus and control groups in the male population (P< 0.05, P adjusted > 0.05), but there was no difference in total and female population (P> 0.05). And the means of fasting blood glucose (FBG), fasting insulin and HOMA-index significantly decreased in individuals with AA, AG and GG genotypes of rs6025422 in male population (P< 0.05), but not in total and female population (P> 0.05). The logistic regression analysis showed that GG genotype of rs6025422 variation might be a protective factor for diabetes in male (OR= 0.637, 95% confidence interval 0.439-0.923, P< 0.05). CONCLUSION: The present study suggests that the rs6025422 polymorphism in (BMP7) gene may be associated with diabetes mellitus and insulin resistance in Uygur men.
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