Abstract
OBJECTIVE: A rare mutation in low-density lipoprotein receptor-related protein 6 gene (LRP6) was identified as the primary molecular defect underlying monogenic form of coronary artery disease. We hypothesized that common variants in LRP6 could predispose subjects to elevated LDL-cholesterol (LDL-C).
METHODS AND RESULTS: Twelve common (minor allele frequency > or =0.1) single nucleotide polymorphisms in LRP6 were genotyped in 703 individuals from 213 Polish pedigrees (Silesian Cardiovascular Study families). The family-based analysis revealed that the minor allele of rs10845493 clustered with elevated LDL-C in offspring more frequently than expected by chance (P=0.0053). The quantitative analysis restricted to subjects free of lipid-lowering treatment confirmed the association between rs10845493 and age-, sex-, and BMI-adjusted circulating levels of LDL-C in families as well as 2 additional populations - 218 unrelated subjects from Silesian Cardiovascular Study replication panel and 1138 individuals from Young Men Cardiovascular Association cohort (P=0.0268, P=0.0476, and P=0.0472, respectively). In the inverse variance weighted meta-analysis of the 3 populations each extra minor allele copy of rs10845493 was associated with 0.14 mmol/L increase in age-, sex-, and BMI-adjusted LDL-C (SE=0.05, P=0.0038).
CONCLUSIONS: Common polymorphism in the gene underlying monogenic form of coronary artery disease impacts on risk of LDL-C elevation.
Original language | English |
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Pages (from-to) | 1316-21 |
Number of pages | 6 |
Journal | Arteriosclerosis, Thrombosis, and Vascular Biology |
Volume | 29 |
Issue number | 9 |
DOIs | |
Publication status | Published - Sept 2009 |
Keywords
- Adult
- Cholesterol, LDL/blood
- Coronary Artery Disease/blood
- Dyslipidemias/blood
- Female
- Gene Frequency
- Genetic Predisposition to Disease
- Humans
- LDL-Receptor Related Proteins/blood
- Lipid Metabolism/genetics
- Low Density Lipoprotein Receptor-Related Protein-6
- Male
- Middle Aged
- Monocytes/metabolism
- Pedigree
- Phenotype
- Poland
- Polymorphism, Single Nucleotide
- RNA, Messenger/blood
- Up-Regulation
- Young Adult