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Mapping The Genetic Locus For Triglycerides

Date:
April 28, 2008
Source:
American Society for Biochemistry and Molecular Biology
Summary:
Researchers have mapped out a region on human chromosome 1 that contributes to genetically elevated blood triglyceride levels, a major risk factor for heart disease.

Researchers have mapped out a region on human chromosome 1 that contributes to genetically elevated blood triglyceride levels, a major risk factor for heart disease.

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Triglycerides (TG), the main form of dietary fat, continuously circulate in the blood, but if their concentration elevates the risk of atherosclerosis and subsequently heart disease increases. Circulating TG levels depend on many factors including diet, exercise, and smoking, but around 40% of the variation in the population is due to genetics.

To locate the genes contributing to increased TG levels, Qing Wang and colleagues scanned 714 Caucasians from 388 families with premature heart disease. They identified a novel region on chromosome 1, 1p31-32.

While this genetic locus does contain 375 known genes, the researchers highlighted three genes that are especially promising candidates: angiopoietin-like 3, which inhibits enzymes that break down fats; the receptor for the appetite hormone leptin; and sterol carrier protein 2, which helps convert cholesterol into bile acids.

The researchers also note that another recent study identified a single nucleotide polymorphism associated with elevated TG levels in the exact same region, solidifying this part of chromosome 1 as the TG region.


Story Source:

The above story is based on materials provided by American Society for Biochemistry and Molecular Biology. Note: Materials may be edited for content and length.


Cite This Page:

American Society for Biochemistry and Molecular Biology. "Mapping The Genetic Locus For Triglycerides." ScienceDaily. ScienceDaily, 28 April 2008. <www.sciencedaily.com/releases/2008/04/080425140417.htm>.
American Society for Biochemistry and Molecular Biology. (2008, April 28). Mapping The Genetic Locus For Triglycerides. ScienceDaily. Retrieved January 28, 2015 from www.sciencedaily.com/releases/2008/04/080425140417.htm
American Society for Biochemistry and Molecular Biology. "Mapping The Genetic Locus For Triglycerides." ScienceDaily. www.sciencedaily.com/releases/2008/04/080425140417.htm (accessed January 28, 2015).

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