Objective: To investigate the association between L296Q polymorphism in the cholesterol ester transfer protein(CETP)gene and type 2 diabetes mellitus(T2DM)and blood lipids.
Methods: Plasma glucose and lipid levels were measured in a total of 303 subjects recruited from the West China Hospital of Sichuan University. The subjects were divided into 4 groups according to the levels of plasma glucose and triglyceride, namely T2DM with hypertriglyceridemia group, group of T2DM with normal triglyceride, group of hypertriglyceridemia without DM and group of normal controls, respectively. Genotypes of L296Q polymorphism in the CETP gene of all subjects were analyzed by real-time fluorescent quantitative PCR(FQ-PCR).
Results: No significant differences were observed in the frequencies of genotypes LL and LQ and the 296Q allele among the four groups (chi-square=3.459, P>0.05; chi-square=3.155, P>0.05, respectively), nor the frequencies of genotypes LL and LQ between the T2DM and non-T2DM, or plasma lipid levels between the 296Q allele carriers and those of genotype LL.
Conclusion: No association was found between the L296Q polymorphism in the CETP gene and T2DM as well as plasma lipid levels in various groups of Chinese in this study.