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Adiponectin gene variation associates with the increasing risk of type 2 diabetes in non-diabetic Japanese subjects

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Adiponectin is an adipocyte-secreted protein that is known to modulate insulin sensitivity and glucose homeostasis. A number of genetic variations have been studied. Among them, two single-nucleotide polymorphisms (SNP45T>G, SNP276G>T) showed an association with type 2 diabetes in the Japanese population. In this study, we examined the association between these SNPs and risk factors of type 2 diabetes in 194 non-diabetic Japanese subjects. SNP45 was associated with insulin sensitivity (determined by HOMA-IR, p=0.046) and obesity (body mass index; BMI, p=0.043). SNP276 showed a stronger association with HOMA-IR (p=0.018) and BMI (p=0.017). However, neither SNP had an association with insulin secretion (insulinogenic index) and plasma lipid levels. Moreover, a linkage dis-equilibrium was observed between SNP45 and SNP276. Carriers with SNP45G-SNP276G haplotype had higher BMI (p=0.034) and carriers with SNP45T-SNP276T haplotype had lower BMI (p=0.005) and HOMA-IR (p=0.037). Adiponectin gene variations showed an association with obesity and insulin sensitivity, and adiponectin genotypes may predict the increasing risk for type 2 diabetes in non-diabetic subjects.
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Document Type: Research Article

Affiliations: Department of Laboratory Medicine, Mie University School of Medicine, Mie 514-8507, Japan., Email: [email protected]

Publication date: January 1, 2005

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  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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