[Role of apolipoprotein B and lipoprotein lipase gene polymorphism in variability of serum lipid levels].

The serum lipid level is determined by the complex interaction of genetic and environmental factors. The genetic component of this system includes apolipoprotein B (apoB) and lipoprotein lipase (LPL) genes. Three RFLP markers (XbaI, MspI, EcoRI) in the apoB gene and PvuII-RFLP in the LPL gene were genotypes and five lipid traits (fasting plasma levels of total cholesterol, triglycerides, HDL-, LDL-, and VLDL- cholesterol) were measured in 122 unrelated individuals without clinical signs of cardiovascular disease. Several alleles and genotypes which were associated with significant effects on cholesterol, triglycerides, and LDL-cholesterol levels were identified. Analysis of intragenotypic variance and multivariate measures of the mean values of lipid concentrations indicate that apoB gene variation may contribute both to the level and variability of plasma lipids.