Relationship between Ghrelin polymorphism and serum lipoprotein levels in Han Chinese with or without coronary heart disease risk factors
2008
OBJECTIVE: To investigate the relationship between polymorphism of Ghrelin gene and serum levels of lipoprotein in Han Chinese with or without coronary heart disease (CHD) risk factors. METHODS: PCR restriction fragment length polymorphism assay was used to detect the distribution of genotypes of Ghrelin gene in 225 Han Chinese (40 to 69 years-old) with CHD risk factors, 78 subjects without CHD risk factors served as normal controls. Serum levels of total cholesterol (TC), triglyceride (TG), high density lipoprotein-cholesterol (HDL-C), low density lipoprotein-cholesterol (LDL-C) and very low-density lipoprotein (VLDL) were measured to analyze the relationship with the polymorphism of Ghrelin gene. RESULTS: Ghrelin genotype frequencies of AA, AG, GG (0.975, 0.025, 0.00 in control group and 0.956, 0.040, 0.004 in the high-risk group, all P > 0.05) as well as the allele frequencies of A, G (0.987, 0.013 in control group and 0.976, 0.024 in the high-risk group, all P > 0.05) were similar between the groups. HDL-C levels of the Arg/Gln carriers were significantly lower than those of Arg/Arg carriers in control group and in the high-risk group (all P < 0.05). CONCLUSION: Arg/Gln carriers were associated lower HDL-C levels in Han Chinese.
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