کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9157730 | 1574728 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A promoter polymorphism in cholesterol 7α-hydroxylase interacts with apolipoprotein E genotype in the LDL-lowering response to atorvastatin
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
کاردیولوژی و پزشکی قلب و عروق
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![عکس صفحه اول مقاله: A promoter polymorphism in cholesterol 7α-hydroxylase interacts with apolipoprotein E genotype in the LDL-lowering response to atorvastatin A promoter polymorphism in cholesterol 7α-hydroxylase interacts with apolipoprotein E genotype in the LDL-lowering response to atorvastatin](/preview/png/9157730.png)
چکیده انگلیسی
Bile-acid biosynthesis is a key determinant of intracellular cholesterol and, in turn, cholesterol synthesis rate in hepatocytes. This suggests that variation in the cholesterol 7α-hydroxylase gene (CYP7A1), a key enzyme in bile-acid biosynthesis, may influence the statin response. To test this hypothesis, a promoter polymorphism (A-204C) in CYP7A1 was examined in 324 hypercholesterolemic patients treated with atorvastatin 10 mg. The variant C allele was significantly and independently associated with poor LDL cholesterol reductions; â39% in wild type allele homozygotes, â37% in variant allele heterozygotes, and â34% in variant allele homozygotes (p < 0.0001 for trend). Differences were more striking in men, and were enhanced by the coexistence of common variants of apolipoprotein E gene (APOE), É2 or É4. In subjects having wild type alleles at both loci, the mean reduction in LDL cholesterol was â40%, while the value in subjects having two CYP7A1 variant alleles and at least one variant APOE allele was â31% (p < 0.0001). Combination analysis of these two loci more accurately predicted the achievement of goal LDL cholesterol, than did both single locus analysis. We concluded that the CYP7A1 A-204C promoter variant was associated with poor response to atorvastatin, which were additively enhanced by common variants in another locus, APOE.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atherosclerosis - Volume 180, Issue 2, June 2005, Pages 407-415
Journal: Atherosclerosis - Volume 180, Issue 2, June 2005, Pages 407-415
نویسندگان
Kouji Kajinami, Margaret E. Brousseau, Jose M. Ordovas, Ernst J. Schaefer,