Abstract:
:Coronary events have a close association with a low HDL/hypertriglyceridemia (LHDL/HTG) phenotype. As enzymes that hydrolyze triglyceride-rich lipoproteins are associated with a modulation of both HDL cholesterol and triglycerides, we have tested the hypothesis that mutations in the genes encoding lipoprotein lipase (LPL) or hepatic lipase (HTGL) may contribute to the formation of coronary atherosclerosis and, thus, of coronary heart disease (CHD). The entire coding and boundary regions of LPL and HTGL genes were analyzed by direct sequencing in 20 patients with both LHDL/HTG and diagnosed CHD. In the LPL gene six different polymorphisms were identified with same frequencies observed in the general population. In the HTGL gene, besides several polymorphisms, we identified three missense mutations: Asn37His, Val73Met, and Ser267Phe. Population screening using allele specific PCR identified Val73Met as a polymorphism while the two others were absent from 100 control individuals. One of the mutations (Ser267Phe) is known to cause HTGL deficiency and is associated with type III hyperlipoproteinemia. Since this dyslipoproteinemia meets the criteria of LHDL/HTG, it is intriguing to speculate that missense mutations in HTGL may play a role in the pathogenesis of this atherogenic phenotype.
journal_name
Atherosclerosisjournal_title
Atherosclerosisauthors
Moennig G,Wiebusch H,Enbergs A,Dorszewski A,Kerber S,Schulte H,Vielhauer C,Haverkamp W,Assmann G,Breithardt G,Funke Hdoi
10.1016/s0021-9150(99)00330-5keywords:
subject
Has Abstractpub_date
2000-04-01 00:00:00pages
395-401issue
2eissn
0021-9150issn
1879-1484pii
S0021-9150(99)00330-5journal_volume
149pub_type
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