Endogenous hydrogen sulfide and ERK1/2-STAT3 signaling pathway may participate in the association between homocysteine and hypertension

作     者：Lin SHI Xiao-Yun LIU Zhi-Gang HUANG Zhi-Yi MA Yang XI Lu-Yan WANG Ning-Ling SUN 

作者机构：Hypertension Research LaboratoryDepartment of CardiologyPeking University People’s HospitalBeijingChina Emergency DepartmentPeking University Shenzhen HospitalShenzhenChina 

出 版 物：《Journal of Geriatric Cardiology》 (老年心脏病学杂志（英文版）)

年 卷 期：2019年第16卷第11期

页      面：822-834页

核心收录：

学科分类：1002[医学-临床医学] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学] 

基　　金：supported by the Beijing Natural Science Foundation Program(Grant number:5102040) the Open Foundation of the Beijing Key Laboratory of Hypertension Research(Grant number:2015GXYB01) 

主　　题：Angiotensin converting enzyme 1 Blood pressure ERK1/2-STAT3 signaling pathway Homocysteine Hydrogen sulfide 

摘      要：Background Homocysteine(Hcy)is a risk factor for hypertension,although the mechanisms are poorly *** We first explored the relationship between Hcy levels and blood pressure(BP)by analyzing the clinical data of primary hypertensive patients admitted to our ***,we explored a rat model to study the effect of Hcy on blood pressure and the role of *** hyperhomocysteinemia(HHcy)rat model was induced to explore the effect of Hcy on blood pressure and the possible *** carried out tissue histology,extraction and examination of RNA and ***,we conducted cell experiments to determine a likely mechanism through renin-angiotensin-aldosterone system(RAAS)and extracellular signal-regulated kinase 1/2(ERK1/2)signaling *** In primary hypertensive inpatients with HHcy,blood pressure was significantly higher as compared with inpatient counterparts lacking *** the rat model,blood pressure of the Wistar rats was significantly increased with increases in serum Hcy levels and decreased after folate *** converting enzyme 1(ACE1)expression in the Wistar Hcy group was enhanced comparing to controls,but was decreased in the Wistar folate *** II receptor type 1(AGTR1)levels in the kidney tissue increased in the Wistar folate *** serum H2S and kidney cystathionineγ-lyase decreased with elevated levels of serum *** vitro,increased concentrations and treatment times for Hcy were associated with increased expression of collagen type 1 and *** dose and time dependent response was also observed for p-STAT3 and p-ERK1/2 *** Endogenous H2S might mediate the process of altered blood pressure in response to changes in serum Hcy levels,in a process that is partly dependent on activated RAAS and ERK1/2-STAT3 signaling pathway.