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DNA polymorphisms around the apo Al gene in normal and hyperlipidaemic individuals selected for a twin study
Author(s) -
Kessling A. M.,
Berg K.,
Mockleby E.,
HUMPHRIES S. E.
Publication year - 1986
Publication title -
clinical genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.543
H-Index - 102
eISSN - 1399-0004
pISSN - 0009-9163
DOI - 10.1111/j.1399-0004.1986.tb00548.x
Subject(s) - restriction fragment length polymorphism , allele , allele frequency , apolipoprotein b , genetics , biology , restriction enzyme , triglyceride , polymorphism (computer science) , gene , medicine , endocrinology , genotype , cholesterol
We have investigated the allele frequencies, in a Norwegian population, of two restriction fragment length polymorphisms (RFLPs) in the apolipoprotein (apo) AI‐CIII‐AIV gene region. The study group consisted of clinically well twins and their unrelated spouses. In the normotri‐glyceridaemic individuals tested, the frequency of the rare allele ( S2 ) of the RFLP detected using the restriction enzyme Sst I was 0.17; for the RFLP detected with the enzyme Xmn I, the rare allele ( X2 ) frequency was 0.06. The frequency of the S2 allele was lower in individuals with serum triglyceride levels above 1.7 mmol 1 ‐1 , but this was not statistically significant. Conversely, the frequency of the X2 allele was higher in individuals with raised serum triglyceride levels, but similarly, did not reach statistical significance. Taken together with the data from our previous study on UK individuals, these results support the suggestion that inherited variations in this apolipoprotein gene cluster are involved in the determination of serum triglyceride levels.