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KMID : 0043320120350101817
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Archives of Pharmacal Research
2012 Volume.35 No. 10 p.1817 ~ p.1822
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Effect of angiotensin II type I receptor A1166C polymorphism on benazepril action in hypertensive patients: A family-based association test study
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Zhang Ning
Cui Huadong
Yang Lili
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Abstract
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Background: Few studies have examined the effect of the angiotensin II type I receptor (AT1R) A1166C polymorphism on the antihypertensive effect of the angiotensin-converting-enzyme inhibitor benazepril in patients with hypertension, and no such studies have performed analysis using the Family-Based Association Test (FBAT), The aim of our study was to examine the association between AT1R A1166C gene polymorphism and the antihypertensive effect of benazepril using the FBAT.
Methods and Results: A total of 864 patients (aged, 26?62 years) with essential hypertension were identified in an epidemiological survey and enrolled in this study. Blood pressure (BP) was measured before and after 16 days of treatment with benazepril (10 mg/day). The association between the A1166C gene polymorphism and the antihypertensive effect of benazepril was assessed by FBAT. The frequencies of alleles A and C were 95.1% and 4.9%, respectively. FBAT analysis revealed that the C allele was significantly associated with high baseline diastolic BP (Z = 2.041, p = 0.041), decreased systolic BP after treatment (Z = 2.549, p = 0.011), and decreased diastolic BP after treatment (Z = 2.320, p = 0.020).
Conclusion: Our results, determined using the FBAT, are the first evidence that the AT1R A1166C polymorphism may increase the antihypertensive effect of benazepril in patients with hypertension.
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KEYWORD
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AT1R, Benazepril, FBAT, Polymorphism, Hypertension
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