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J Renin Angiotensin Aldosterone Syst. 2011 Dec;12(4):581-7. doi: 10.1177/1470320311418266. Epub 2011 Aug 2.

Tagging SNPs in REN, AGTR1 and AGTR2 genes and response of renin activity, angiotensin II and aldosterone concentrations to antihypertensive treatment in Kazakans.

Author information

1
Pediatric Institute, Children's Hospital of Fudan University, Shanghai, China. 01.weili@gmail.com

Abstract

HYPOTHESIS:

Polymorphisms of REN, AGTR1 and AGTR2 may be associated with responses of renin-angiotensin-aldosterone system (RAAS) activity phenotypes to angiotensin-converting enzyme inhibitor (ACEI) antihypertensive treatment.

MATERIALS AND METHODS:

A total of 400 first diagnosed Kazak hypertensives were randomly allocated to two groups and received a 3-week course of either captopril and atenolol as monotherapy under double blinding. Genotype-phenotype association analyses were performed by covariance analyses between baseline level and responses of blood pressure, renin, angiotensin II and aldosterone concentrations with tagging single nucleotide polymorphisms (SNPs) in REN, AGTR1 and AGTR2 genes. A false discovery rate method was used to adjust multiple testing.

RESULTS:

After adjustment for multiple testing, we found that the G allele of rs6676670 (T/G) in intron 1 of REN was significantly associated with higher baseline aldosterone concentrations (p < 0.0001, explained variance (EV) = 2.3%). Significant associations after adjustments were also found between the A allele of rs2887284, with higher baseline renin activity (p = 0.022, EV = 1.0%), higher responses of renin (p = 0.018 EV = 5.4%), and higher responses of angiotensin II (p = 0.0255, EV = 3.13%) to the treatment of ACEI. The carriers of the A allele of rs2887284 appeared to be more sensitive to the ACEI treatment.

CONCLUSION:

rs2887284 in intron 9 of REN is associated with the response of renin and angiotensin II levels to ACEI treatment.

PMID:
21810897
DOI:
10.1177/1470320311418266
[Indexed for MEDLINE]
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