PMID: 16524804Mar 10, 2006Paper

Smoking and obesity make a bad problem worse: genetics and lifestyle affect high density lipoprotein levels in Turks

Anadolu Kardiyoloji Dergisi : AKD = the Anatolian Journal of Cardiology
U Hodoğlugil, Robert W Mahley

Abstract

Low levels of high density lipoprotein cholesterol (HDL-C) are an independent risk factor for coronary heart disease. The Turkish Heart Study revealed very low levels of plasma HDL-C in the Turkish population, a fact confirmed by the Heart Disease and Risk Factors in Turkish Adults study. Low HDL-C levels have also been observed in Turks living in the United States, Germany, and the Netherlands. Dietary habits do not explain the low HDL-C levels, which were found in Turkish Heart Study participants from six regions of Turkey with significant differences in typical diets. Among newborns and pre-pubescent children, plasma HDL-C levels were similar in Turks and western Europeans. After puberty, however, HDL-C levels declined significantly in Turkish boys and girls. These results suggest a genetic basis for the low HDL-C levels. In fact, hepatic lipase activity modulated by sex hormones was 25-30% higher in the Turkish population than in other populations. Elevated hepatic lipase activity is clearly associated with low plasma HDL-C in many studies. Results of a recent genome-wide scan for plasma HDL-C in Turks revealed a linkage on chromosome 15q22 where the hepatic lipase gene is located and that low HDL-C was 80% heritable. In ad...Continue Reading

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