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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2005, Vol. 10 ›› Issue (6): 637-641.

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Effects of human tissue kallikrein gene A1789G polymorphism on plasma creatinine levels in patients with essential hypertension

HONG Zong-yuan, ZHANG Xiu-qing1, HUANG Guo1, LING Dai-jun1, XU Xi-ping1   

  1. Department of Pharmacology, Wannan Medical College, Wuhu 241001, Anhui, China; 1School of Life Science, University of Science and Technology of China (USTC), Hefei 230027, Anhui, China
  • Received:2005-04-07 Revised:2005-06-20 Online:2005-06-26 Published:2020-11-12

Abstract: AIM: To investigate the effect of the human tissue kallikrein gene (hKLK1) polymorphism on plasma creatinine levels in hypertensive subjects. METHODS: The hKLK1 A1789G polymorphism was genotyped by PCR-restriction fragment length polymorphism (RFLP) in 733 hypertensive subjects. The relationship between genotype and plasma creatinine level was performed by a multiple regression analysis. The interactive effect of genotype and blood pressure on the plasma creatinine level was accessed by ANOVA. RESULTS: Multiple regression analysis showed that the plasma creatinine level was significantly higher in the subjects with mutant allele G (AG or GG genotype) than in those with wild allele A (AA genotype) (P =0.009 and P = 0.046, respectively). ANOVA indicated that the AG and GG genotype individuals had high plasma creatinine levels in SBP and DBP Compared with AA genotype individuals, and the plasma creatinine level increased with blood pressure rises (P <0.05). CONCLUSION: The hKLK1 A1789G polymorphism influences plasma creatinine level, and the A1789→G variation is a risk factor in renal plasma creatinine clearance rate decline in hypertensive individuals.

Key words: tissue kallikrein, gene polymorphism, plasma creatinine, hypertension, PCR-RFLP

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