Polymorphisms at newly identified lipid-associated loci are associated with blood lipids and cardiovascular disease in an Asian Malay population

J Lipid Res. 2009 Mar;50(3):514-520. doi: 10.1194/jlr.M800456-JLR200. Epub 2008 Nov 5.

Abstract

We conducted a cross-sectional study of Malay participants aged 40-80 years (n = 2,932) to examine the associations between polymorphisms at newly identified, lipid-associated loci with blood lipid levels and prevalent cardiovascular disease (CVD) in a Malay population in Asia. A polymorphism adjacent to the TRIB1 locus (rs17321515) was associated with elevated total cholesterol and LDL-cholesterol (LDL-C) after adjustment for age and sex (both P values <0.007) and with increased risk of coronary heart disease and CVD [odds ratio (OR) 1.23, 95% confidence interval (95% CI) 1.03-1.46; and OR 1.2, 95% CI 1.02-1.42, respectively] under an additive model of inheritance. In addition, using recessive models of inheritance, polymorphisms on chromosome 19 adjacent to the CILP2 and PBX4 loci (rs16996148) and on chromosome 1 at the GALNT2 locus (rs4846914) were associated with elevated HDL-C (P = 0.005) and lower LDL-C (P = 0.048), respectively. Although novel, the former is consistent with the association between this polymorphism and lower blood triglycerides observed in the initial studies conducted in populations of European ancestry. Neither showed statistically significant association with CVD. These observations should form the basis of further investigation to identify the causative polymorphisms at this locus, and also to understand the mechanistic roles that this protein may play in lipoprotein metabolism in Asians and other populations.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Alleles
  • Asian People / genetics*
  • Cardiovascular Diseases / blood*
  • Cardiovascular Diseases / epidemiology
  • Cardiovascular Diseases / genetics*
  • Cholesterol / blood
  • Cholesterol / genetics
  • Cholesterol, LDL / blood
  • Cholesterol, LDL / genetics
  • Cross-Sectional Studies
  • Female
  • Gene Frequency
  • Humans
  • Intracellular Signaling Peptides and Proteins / genetics
  • Lipids / blood*
  • Lipids / genetics*
  • Malaysia / ethnology
  • Male
  • Middle Aged
  • Molecular Epidemiology
  • Polymorphism, Single Nucleotide*
  • Protein Serine-Threonine Kinases / genetics
  • Risk Factors
  • Singapore / epidemiology

Substances

  • Cholesterol, LDL
  • Intracellular Signaling Peptides and Proteins
  • Lipids
  • TRIB1 protein, human
  • Cholesterol
  • Protein Serine-Threonine Kinases