PMID- 20701788 OWN - NLM STAT- MEDLINE DCOM- 20101123 LR - 20221207 IS - 1475-2840 (Electronic) IS - 1475-2840 (Linking) VI - 9 DP - 2010 Aug 11 TI - KCNQ1 gene polymorphisms are associated with lipid parameters in a Chinese Han population. PG - 35 LID - 10.1186/1475-2840-9-35 [doi] AB - BACKGROUND: Four single nucleotide polymorphisms (SNPs) (rs2237892, rs2237895, rs2237897, and rs2283228) in KCNQ1 are reported to be associated with type 2 diabetes mellitus (T2DM), possibly caused by a reduction in insulin secretion and higher fasting glucose, but the results are inconsistent. We investigated whether these 4 genetic markers are associated with serum lipid metabolism in a middle-aged Chinese Han population. METHODS: We enrolled 398 consecutive patients, including 180 with premature coronary artery disease (CAD) (male < 55 years, female < 65 years) and 218 controls without documented CAD. All subjects were genotyped for 4 SNPs by using the ligase detection reaction method. Fasting blood sugar (FBS) and plasma concentrations of total cholesterol, triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), apolipoprotein A1(apo A1), and apolipoprotein B (apo B) were determined by standard biochemical methods. Main anthropometric and metabolic characteristics are analyzed among 3 genotypes at rs2283228, rs2237895, rs2237897, or rs2237892 in KCNQ1. RESULTS: The 3 genotypes AA, AC, and CC were present in rs2283228 and rs2237895, and the 3 genotypes CC, CT, and TT were present in rs2237897 and rs2237892. The minor genotypes CC at rs2283228 and TT at rs2237892 were associated with higher levels of TG (P = 0.007 and 0.026, respectively). Furthermore, subjects with the CC genotype at rs2283228 had lower levels of HDL-C and apo A1 than in the other 2 genotype groups (P = 0.052 and 0.055, respectively). No other associations were detected between these 4 SNPs and FBS or other lipid parameters. CONCLUSIONS: Our data suggest that rs2283228 and rs2237892 in KCNQ1 are associated with lipid metabolism in a middle-aged Chinese Han population. FAU - Chen, Zhong AU - Chen Z AD - Department of Cardiology, the Affiliated ZhongDa Hospital and Institute of Cardiovascular Disease of Southeast University, Nanjing 210009, PR China. zhongchen7498@sina.com FAU - Yin, Quanzhong AU - Yin Q FAU - Ma, Genshan AU - Ma G FAU - Qian, Qi AU - Qian Q LA - eng PT - Journal Article DEP - 20100811 PL - England TA - Cardiovasc Diabetol JT - Cardiovascular diabetology JID - 101147637 RN - 0 (KCNQ1 Potassium Channel) RN - 0 (KCNQ1 protein, human) RN - 0 (Lipids) SB - IM MH - Adult MH - Asian People/*genetics/statistics & numerical data MH - China/epidemiology MH - Coronary Artery Disease/ethnology/*genetics/metabolism MH - Diabetes Mellitus, Type 2/ethnology/*genetics/metabolism MH - Dyslipidemias/ethnology/*genetics/metabolism MH - Female MH - Genotype MH - Homeostasis/genetics MH - Humans MH - KCNQ1 Potassium Channel/*genetics MH - Lipids/blood MH - Male MH - Middle Aged MH - Polymorphism, Single Nucleotide MH - Risk Factors PMC - PMC2925337 EDAT- 2010/08/13 06:00 MHDA- 2010/12/14 06:00 PMCR- 2010/08/11 CRDT- 2010/08/13 06:00 PHST- 2010/08/03 00:00 [received] PHST- 2010/08/11 00:00 [accepted] PHST- 2010/08/13 06:00 [entrez] PHST- 2010/08/13 06:00 [pubmed] PHST- 2010/12/14 06:00 [medline] PHST- 2010/08/11 00:00 [pmc-release] AID - 1475-2840-9-35 [pii] AID - 10.1186/1475-2840-9-35 [doi] PST - epublish SO - Cardiovasc Diabetol. 2010 Aug 11;9:35. doi: 10.1186/1475-2840-9-35.