Hypertension Research
Online ISSN : 1348-4214
Print ISSN : 0916-9636
ISSN-L : 0916-9636
Clinical studies
Association between Hepatocyte Growth Factor Gene Polymorphism and Essential Hypertension
Masaharu MOTONE, Tomohiro KATSUYA, Kazuhiko ISHIKAWA, Yoshio IWASHIMA, Ken SUGIMOTO, Koichi YAMAMOTO, Yuxiao FU, Akiko MATSUO, Mitsuru OHISHI, Hiromi RAKUGI, Toshio OGIHARA
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Keywords: hepatocyte growth factor, genetics, essential hypertension, TaqMan polymerase chain reaction, single nucleotide polymorphism
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2004 Volume 27 Issue 4 Pages 247-251

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Abstract

Hepatocyte growth factor (HGF) is a growth factor which contributes to protection and/or repair of vascular endothelial cells. Serum HGF level is elevated in response to hypertensive organ damage, which suggests that blood pressure regulation may be affected by HGF gene polymorphisms via serum HGF. To examine the interaction between a HGF gene polymorphism and hypertension, we carried out a case-control study. The present study was conducted in outpatients of Osaka University Hospital. Subjects (n =654) who gave informed consent to the study protocol and genetic analysis were recruited. A C to A nucleotide substitution in intron 13 of the HGF gene was determined by the TaqMan polymerase chain reaction (PCR) method using an MGB (Minor Groove Binder) probe. The genotype distribution of the C/A polymorphism of the HGF gene in total subjects was as follows: CC, 83%; CA, 16%; and AA 1%. This distribution was not significantly different from the predicted by Hardy-Weinberg’s equilibrium. The prevalence of hypertension was significantly higher in subjects with the CC genotype than in those with an A allele, and the positive association remained after adjustment for confounding factors, with the estimated odds ratio for hypertension (CC vs. CA+AA) being 1.71 (95% confidence interval: 1.02-2.93). A significant association with hypertension was observed in lean or female subjects but not in obese or male subjects. In conclusion, our data suggested that C/A polymorphism in intron 13 of the HGF gene is associated with susceptibility to essential hypertension in lean or female subjects. (Hypertens Res 2004; 27: 247-251)

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© 2004 by the Japanese Society of Hypertension
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