Polymorphisms of the HDL receptor gene associated with HDL cholesterol levels in diabetic kindred from three populations

Summary, in English

Objective: We examined polymorphisms in the HDL receptor, SR-BI, for association with plasma HDL cholesterol levels. Methods: Study subjects, including 847 women and 725 men, were from families originally ascertained for type 2 diabetes from Finland, Sweden and Israel. Four common polymorphisms were examined in linear regression analysis: an exon 1 missense (EX1), exon 8 silent (EX8), intron 5 (IVS5) and intron 10 (IVS10) variants. Results: Genotype combinations for the three polymorphisms in linkage disequilibrium (IVS5, EX8 and IVS10) were found to be associated with HDL-C among women from the Israeli (p = 0.01) and Swedish (p = 0.06) populations. In Finnish women, the association was only apparent after taking into account effect modification by triglyceride levels (p = 0.04). One specific pattern of genotypes, denoted by presence of the IVS5_T and EX8_C alleles, and absence of the IVS10_G allele, was consistently associated with the lowest mean levels of HDL-C in women from all three populations. These same associations were not found in men. Conclusions: Polymorphic variation of the SR-BI gene may influence HDL-C levels and act in a sex-dependent manner. Copyright (C) 2003 S. Karger AG, Basel.

• Author: JJ McCarthy; S Lewitzky; C Reeves; A Permutt; B Glaser; Leif Groop; T Lehner; JM Meyer
• Department/s: Translational Muscle Research
• Publishing year: 2003
• Language: English
• Pages: 163-170
• Publication/Series: Human Heredity
• Volume: 55
• Issue: 4
• Links: http://dx.doi.org/10.1159/000073986
• Document type: Journal article
• Publisher: Karger
• Topic: Medical Genetics
• Keywords: epidemiologic studies; receptors; haplotypes; genotypes; genes; polymorphism; diabetes mellitus; triglycerides; HDL; lipoproteins
• Status: Published
• Research group: Genomics, Diabetes and Endocrinology
• ISBN/ISSN/Other: ISSN: 1423-0062