• Chinese medical journal · Apr 2012

    Relationship of plasminogen activator inhibitor 1 gene 4G/5G polymorphisms to hypertension in Korean women.

    • Kyu-nam Kim, Kwang-min Kim, Bom-taeck Kim, Nam-seok Joo, Doo-yeoun Cho, and Duck-joo Lee.
    • Department of Family Practice and Community Health, Ajou University School of Medicine, Suwon, Republic of Korea.
    • Chin. Med. J. 2012 Apr 1; 125 (7): 124912531249-53.

    BackgroundHypertension (HTN) is a major determinant of various cardiovascular events. Plasma levels of plasminogen activator inhibitor 1 (PAI-1) modulate this risk. A deletion/insertion polymorphism within the PAI-1 loci (4G/4G, 4G/5G, 5G/5G) affects the expression of this gene. The present study investigated the association between PAI-1 loci polymorphisms and HTN in Korean women.MethodsKorean women (n = 1312) were enrolled in this study to evaluate the association between PAI-1 4G/5G gene polymorphisms and HTN as well as other metabolic risk factors. PAI-1 loci polymorphisms were investigated using polymerase chain reaction amplification and single-strand conformation polymorphism analysis.ResultsThe three genotype groups differed with respect to systolic blood pressure (P = 0.043), and diastolic blood pressure (P = 0.009) but not with respect to age, body mass index, total cholesterol, low or high density lipoprotein cholesterol, triglycerides, or fasting blood glucose. Carriers of the PAI-1 4G allele had more hypertension significantly (PAI-1 4G/5G vs. PAI-1 5G/5G, P = 0.032; PAI-1 4G/4G vs. PAI-1 5G/5G, P = 0.034). When stratified according to PAI-1 4G/5G polymorphism, there was no significant difference in all metabolic parameters among PAI-1 genotype groups in patients with HTN as well as subjects with normal blood pressure. The estimated odds ratio of the 4G/4G genotype and 4G/5G for HTN was 1.7 (P = 0.005), and 1.6 (P = 0.015), respectively.ConclusionThese findings might indicate that PAI-1 loci polymorphisms independently contribute to HTN and that gene-environmental interaction may be not associated in Korean women.

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