alexa The Association Study of PRKG1 Gene Polymorphism and Salt-Sensitive Hypertension among the Essential Hypertension in Beijing
ISSN: 2167-1095

Journal of Hypertension: Open Access
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Research Article

The Association Study of PRKG1 Gene Polymorphism and Salt-Sensitive Hypertension among the Essential Hypertension in Beijing

Zheng Liu1,2, Jingjing Wu1,2, Jie Zhang1,2, Yezhou Liu1,2, Bin Liu1,2, Jiapeng Lu1,2, Yuxiang Yan1,2 and Ling Zhang1,2*

1Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing, 100069, People’s Republic of China

2Beijing Municipal Key Laboratory of Clinical Epidemiology, Beijing, People’s Republic of China

*Corresponding Author:
Ling Zhang
School of Public Health
Capital Medical University. No.129 mail box
No.10 Xitoutiao, Youanmenwai,Beijing, 100069
the People’s Republic of China
Tel/Fax: 86 10 83911777
E-mail: [email protected]

Received Date: June 13, 2014; Accepted Date: July 23, 2014; Published Date: July 27, 2014

Citation: Liu Z, Wu J, Zhang J, Liu Y, Liu B, et al. (2014) The Association Study of PRKG1 Gene Polymorphism and Salt-Sensitive Hypertension among the Essential Hypertension in Beijing. J Hypertens 3:162. doi:10.4172/2167-1095.1000162

Copyright: © 2014 Liu Z, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Background: PRKG1 plays an important role in regulating vascular smooth muscle contraction. And this gene is regarded as one of the candidate genes on salt-sensitive hypertension. The aim of this study was to investigate the effects of environmental risk factors and two SNPs and haplotypes structures of PRKG1 gene with blood salt-sensitive patients among essential hypertension.

Method: Three hundred and forty-two essential hypertensive were recruited in a case-case study, a modified Sullivan’s acute salt load method was conducted to identify the salt-sensitivity and salt-resistant. Medical history and lifestyle risk factors were obtained by questionnaire, and blood and urine specimens were collected to test the biochemical indicators. We used the Sequenom Mass ARRAY Platform for genotyping of PRKG1 gene single nucleotide polymorphisms (SNPs) (rs7897633/SNP1, rs1904694/SNP2). We applied statistical software SPSS17.0, multifactor dimensionality reduction method 1.1.0 and haploview 4.0 to do the analyses.

Results: There were 63 salt sensitivity subjects in 342 essential hypertension individuals, accounting for 18.4% of the total. Age and 24-hour urinary sodium concentration were the risk factors associated with salt-sensitive hypertension. The results of the logistic regression model showed that subjects carrying SNP1-AA genotype and SNP2-GG genotypes had 2.83-fold (95% CI: 1.21-6.63) and 3.50-fold (95% CI: 1.54-7.93) risks to have salt-sensitive hypertension, respectively. Haplotype analysis showed that haplotype CA had 0.56-fold (95% CI: 0.38-0.84) decreased risk for salt-sensitive hypertension, whereas, haplotype AG had 1.78-fold (95% CI: 1.20-2.65) increased risk for saltsensitive hypertension.

Conclusion: Age and 24-hour urinary sodium concentration are the environmental risk factors associated with salt-sensitive hypertension. Genotypes of SNP1-AA, SNP2-GG and haplotype AG of PRKG1 gene were risk factors for salt-sensitivity in essential hypertension.

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