Haptoglobin (Hp) subtypes were analysed by two-dimensional high-resolution gel electrophoresis in 81 Norwegian individuals with moderate hypercholesterolemia and in 316 Norwegian control subjects. The frequencies of the genes Hp2SS and Hp2SF were higher in individuals with hypercholesterolemia than in controls but the differences did not reach statistical significance (p = 0.087). Within the control population, no effect of the different Hp subtypes was found on total serum cholesterol, triglycerides or high-density lipoprotein (HDL) cholesterol. However, in the controls a significantly higher frequency of Hp2–2 types was found among those with HDL cholesterol values in the upper quartile as compared to those with HDL cholesterol in the lower quartile. A similar phenomenon was not uncovered in analyses of total serum cholesterol or triglycerides. Our results are in agreement with others which indicate that genes belonging to the Hp polymorphism play a role in predicting an individual’s total serum cholesterol level. However, our data indicate that the cholesterol effect is on the HDL rather than on the total cholesterol level.

Keywords:
High-resolution gel electrophoresis, Haptoglobin subtyping, Lipid association, Genetic variation, Polymorphism
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© 1987 S. Karger AG, Basel
1987
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