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  • Title: Angiotensin converting enzyme insertion/deletion polymorphism is associated with plasma antigen levels of plasminogen activator inhibitor-1 in healthy Japanese population.
    Author: Matsubara Y, Hayakawa T, Tsuda T, Takeshita E, Watanabe G, Murata M, Watanabe K, Ikeda Y.
    Journal: Blood Coagul Fibrinolysis; 2000 Mar; 11(2):115-20. PubMed ID: 10759003.
    Abstract:
    Plasminogen activator inhibitor-1 (PAI-1) has a central role in the regulation of the fibrinolytic enzyme system. An elevated plasma PAI-1 level is associated with thrombotic disorders. In vitro and in vivo studies indicate that the renin-angiotensin system is involved in the regulation of PAI-1. A 287-bp insertion/deletion (I/D) polymorphism in the gene-encoding angiotensin converting enzyme (ACE) is associated with cardiovascular disorders. We evaluated the association between the ACE I/D polymorphism and plasma PAI-1 antigen levels in 110 healthy Japanese male subjects. Subjects with the D-allele of the gene-encoding ACE had higher levels of PAI-1 (26.3 +/- 14.7 ng/ml, mean +/- standard deviation) compared with those without (21.0 +/- 12.0; P = 0.0491). A multiple linear regression model with independent variables (age, body-mass index, total cholesterol level, triglyceride level, ACE I/D genotype, and PAI-1 genotype due to a single guanine I/D polymorphism in the PAI-1 gene) demonstrated that the triglyceride level (P = 0.0059) and ACE I/D genotype (P = 0.0372) were independent predictors of plasma PAI-1 antigen levels in a subset of the subjects without diabetes mellitus that were not taking lipid-lowering drugs. These findings suggest that the ACE I/D polymorphism is a genetic factor for the regulation of plasma PAI-1 antigen levels in the healthy Japanese population.
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