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Cholesteryl ester transfer protein rs1532624 gene polymorphism is associated with reduced response to statin therapy



Cholesteryl ester transfer protein rs1532624 gene polymorphism is associated with reduced response to statin therapy



Current Molecular Pharmacology 6(3): 156-162



The aim of the study was to determine the allele and genotype frequencies of rs1532624 SNP of the cholesteryl ester transfer protein gene (CETP) among 116 Jordanian patients taking statins, and to study the impact of the genotypes on response to statin therapy. The study was approved by the Institutional review Board (IRB) of The Jordan University Hospital. An informed consent was signed by every participant. A single fragment encoding a 307 bp sequence of the CETP gene, including the SNP of interest at position 14645 in intron 7, was amplified using a polymerase chain reaction (PCR) technique directly from whole blood. The PCR product was then subjected to DNA sequencing. The frequencies of the genotypes of the homozygous minor allele (AA), the homozygous major allele (CC), and the heterozygous allele (CA) were 0.121, 0.405, and 0.474, respectively. The minor allele (A) frequency was 0.358. The frequencies did not deviate from Hardy-Weinberg equilibrium. The lipid profile before the start of statin therapy was similar for all genotypes regarding total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), and triglycerides, while high density lipoprotein cholesterol (HDL-C) was significantly higher in the AA genotype. The AA genotype was also associated with significantly lower CETP activity than the other genotypes. The response to statin therapy was less in the AA genotype than the other genotypes for TC and LDL-C. In conclusion, the homozygous minor allele subjects have higher base line HDL-C, and lower CETP activity than the other genotypes (CA and CC). They also have less reduction in TC and LDL-C after statin therapy.

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Accession: 052070045

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PMID: 24160573


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