期刊
CLINICAL PHARMACOLOGY & THERAPEUTICS
卷 73, 期 1, 页码 122-130出版社
WILEY
DOI: 10.1067/mcp.2003.1
关键词
-
资金
- NATIONAL HEART, LUNG, AND BLOOD INSTITUTE [R01HL036838] Funding Source: NIH RePORTER
- NHLBI NIH HHS [HL36838] Funding Source: Medline
Background. A critical clinical application of the Human Genome Project is to identify functional variation in genes related to disease or responses to xenobiotics. This study moved toward that goal by combining polymorphism detection with functional assays for the therapeutic target gene cyclooxygenase 1 (COX-1). Cyclooxygenase 1 (prostaglandin endoperoxide G/H synthase [PTGS1]) catalyzes the metabolism of arachidonic acid to prostaglandin H-2, which is subsequently metabolized to thromboxane A(2). Methods. Thirty-eight healthy participants were enrolled in this study to correlate functional and genetic variation of cyclooxygenase 1. Arachidonic acid, with and without aspirin (acetylsalicylic acid) and ethanol pretreatment, was used to stimulate the formation of prostaglandin H-2 measured as prostaglandin F-2alpha (PGF(2alpha)), in human platelets. The cyclooxygenase I complementary deoxyribonucleic acid coding sequence and genomic deoxyribonucleic acid upstream from the cyclooxygenase 1 transcription start site (2.9 kilobases) were sequenced in 38 individuals, with 9 single-nucleotide polymorphisms identified. Results. Two single-nucleotide polymorphisms, A-842G and C50T, were in complete linkage disequilibrium. Participants who were heterozygous for the A-842G/C50T haplotype showed significantly (P = .01) greater inhibition of prostaglandin H-2 formation by acetylsalicylic acid (30 mumol/L) compared with common allele homozygotes. Conclusions. The discovery of a functional single-nucleotide polymorphism in the cyclooxygenase 1 locus may ultimately improve the safe and effective use of acetylsalicylic acid by better tailoring of dosage with an individual's genetic variation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据