首页|期刊导航|中华医学杂志（英文版）|Imbalance of endogenous homocysteine and hydrogen sulfide metabolic pathway in essential hypertensive children
中华医学杂志（英文版）2007，Vol.120Issue(5)：389-393,5.
Imbalance of endogenous homocysteine and hydrogen sulfide metabolic pathway in essential hypertensive children
Imbalance of endogenous homocysteine and hydrogen sulfide metabolic pathway in essential hypertensive children
摘要
Abstract
Background Hypertension is a common disease of the cardiovascular system. So far, the pathogenesis of primary hypertension remains unclear. The elaboration of its pathogenesis is an important topic in the field which calls for urgent resolution. The aim of this study was to probe into the metabolic imbalance of homocysteine (Hcy) and hydrogen sulfide(H2S) in children with essential hypertension, and its significance in the pathogenesis of essential hypertension.Methods Twenty-five children with essential hypertension and 30 healthy children with normal blood pressure were enrolled in the study. The medical history was investigated and a physical examination was conducted on the subjects.Plasma Hcy content was examined by fluorescence polarization immunoassay (FPIA). The plasma H2S level was detected by a modified method with a sulfide electrode. Data were presented as mean±standard deviation. The t test was applied to the mean values of both groups. Pearson linear correlation analysis was applied to the plasma Hcy and H2S as well as to the systolic pressure against the plasma H2S/Hcy ratio.Results Plasma Hcy, an intermittent metabolite of the endogenous methionine pathway, was markedly increased but plasma H2S, a final product of this pathway was significantly decreased in hypertensive cases when compared with normal subjects ((Hcy: (12.68±9.69) μmol/L vs (6.62±4.79) μmol/L (t=2.996, P＜0.01); H2S: (51.93±6.01) μmol/L vs(65.70±5.50) μmol/L) (t=-8.670, P＜0.01)). The ratio of plasma H2S/Hcy in children with hypertension was 5.83±2.91,while that of the control group was 11.60±3.30, and the difference is significant with a t=-6.610 and P＜0.01. A negative correlation existed between plasma Hcy and H2S concentrations, r=-0.379, P＜0.05. And a negative correlation was found between systolic blood pressure and the plasma H2S/Hcy ratio, r=-0.687, P＜0.05.Conclusion There was a metabolic imbalance of homocysteine and hydrogen sulfide in essential hypertensive children.关键词
homocysteine/ hydrogen sulfide/ hypertension/ systolic blood pressureKey words
homocysteine/ hydrogen sulfide/ hypertension/ systolic blood pressure分类
医药卫生引用本文复制引用
CHEN Li,INGRID Sumou,DING Ya-guang,LIU Ying,QI Jian-guang,TANG Chao-shu,DU Jun-bao..Imbalance of endogenous homocysteine and hydrogen sulfide metabolic pathway in essential hypertensive children[J].中华医学杂志（英文版）,2007,120(5):389-393,5.基金项目
This work was supported by grants from the Key Science and Technology Program of Beijing (No. H030930030530 and No.H030930030031), National Natural Science Foundation of China(No. 30425010 and No. 30630031), and Major Basic Research Project of China (No. 2006CB503807). （No. H030930030530 and No.H030930030031）
