Association of cholesteryl ester transfer protein -629C > A polymorphism with high-density lipoprotein cholesterol levels in coronary artery disease patients.
In Turkish population, plasma HDL-C levels were found to be lower than in any other country and it is suggested that this is associated with genetic origin. The cholesteryl ester transfer protein (CETP) -629C > A polymorphism is associated with lower plasma CETP concentration, with increased HDL-C level. In the present study, the frequency of -629C > A polymorphism in patients with coronary artery disease (CAD) was investigated and the effect of genotype on HDL-C was evaluated in a Turkish population. For this aim CETP -629C > A polymorphism was studied in angiographically documented CAD patients and healthy controls. There was no statistical significance in the distribution of genotypes between patients and controls. Although A allele carriers with CAD had significantly lower HDL-C levels than controls, plasma lipid levels showed no difference according to the genotypes. Adjustment by a logistic regression model predicting CAD status through HDL-C and including some risk factors as covariate indicated that the HDL-C doesn't have a significant association with CAD risk in CA and AA genotype carriers. Smoking, gender and hypertension were the common predictors for the HDL-C levels in CA and AA carriers. Although HDL-C appeared to be the only significant predictor of CAD in our study groups, the contribution of CETP -629C > A polymorphism to the alterations in HDL-C level appears to be weak to mention a protective effect of this polymorphism for CAD. In conclusion, the findings of the present study indicate that the CETP -629C > A polymorphism is not among the determinants of the coronary artery disease in Turks.
Istanbul Faculty of Medicine, Department of Biochemistry, Istanbul University, Istanbul, Turkey. sevdat@istanbul.edu.tr
Sevda
S
Tanrikulu
Evin
E
Ademoglu
Figen
F
Gurdol
Umit
U
Mutlu-Turkoglu
Ahmet Kaya
AK
Bilge
Yilmaz
Y
Nisanci
D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D053480:Cholesterol Ester Transfer Proteins / Q000097:blood / Q000235:genetics*; D008076:Cholesterol, HDL / Q000097:blood*; D008078:Cholesterol, LDL / Q000097:blood; D003324:Coronary Artery Disease / Q000097:blood* / Q000235:genetics*; D003710:Demography; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D006801:Humans; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D014280:Triglycerides / Q000097:blood
C506642:CETP protein, human; D053480:Cholesterol Ester Transfer Proteins; D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D014280:Triglycerides