中国病理生理杂志2018，Vol.34Issue(2)：276-280,5.DOI:10.3969/j.issn.1000-4718.2018.02.014
硫氢化钠对慢性心力衰竭大鼠心脏功能和肾素-血管紧张素-醛固酮系统活性的影响
Effects of sodium hydrosulfide on cardiac function and activity of renin-angiotensin-aldosterone system in rats with chronic heart failure
摘要
Abstract
AIM:To investigate the effect of sodium hydrosulfide(NaHS)on cardiac function and activity of renin-angiotensin(Ang)-aldosterone(ALD)system(RAAS)in the rats with chronic heart failure(CHF).METHODS:The CHF rat model was established by abdominal aortic coarctation.SD rats were randomly divided into sham operation group,model group,low dose of NaHS group and high dose of NaHS group(n=6).The left ventricular end-diastolic di-ameter(LVEDD), left ventricular end-systolic diameter(LVESD)and left ventricular ejection fraction(LVEF)were measured before and after treatment by echocardiography in each group.The levels of renin,AngⅡand ALD in the plasma were measured by ELISA.The expression of angiotensin-converting enzyme(ACE)and angiotensin Ⅱ type 1 receptor (AT1R)at mRNA and protein levels in the myocardium tissues was determined by qPCR and Western blot,respectively. RESULTS:After treatment with NaHS,compared with model group and before treatment,LVEDD and LVESD in low dose of NaHS group and high dose of NaHS group were decreased significantly, while LVEF was increased significantly(P<0.05).Compared with low dose of NaHS group,LVEDD and LVESD were decreased,while LVEF was increased in high dose of NaHS group(P<0.05).Compared with sham operation group,the levels of renin,AngⅡand ALD in the plasma of model group were significantly increased(P<0.05),and the expression of ACE and AT1R at mRNA and protein levels in the myocardium tissues of model group were significantly increased(P<0.05).Compared with model group,the plas-ma levels of renin,AngⅡand ALD in low dose of NaHS group and high dose of NaHS group were significantly decreased (P<0.05),and the myocardial expression of ACE and AT 1R at mRNA and protein levels was significantly down-regulated (P<0.05).The plasma levels of renin,AngⅡand ALD,and the myocardial expression of ACE and AT 1R at mRNA and protein levels in high dose of NaHS group were significantly lower than those in low dose of NaHS group(P<0.05). CONCLUSION:NaHS inhibits the activation of RAAS,thus improving the cardiac function of CHF rats,and the effect of high-dose NaHS is better than that of low-dose NaHS.关键词
硫氢化钠/慢性心力衰竭/心功能/肾素-血管紧张素-醛固酮系统Key words
Sodium hydrosulfide/Chronic heart failure/Cardiac function/Renin-angiotensin-aldosterone system分类
医药卫生引用本文复制引用
戴榕,王超,周军,段刚峰,刘缨红,郑琼莉..硫氢化钠对慢性心力衰竭大鼠心脏功能和肾素-血管紧张素-醛固酮系统活性的影响[J].中国病理生理杂志,2018,34(2):276-280,5.基金项目
武汉市卫生和计划生育委员会科研项目(No.WX16C37) （No.WX16C37）
