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The Effects of Ethanolamine Nitrate Ester Ferulate (ENF)on Isolated Working Guinea Pig Heart and Rat AorticRing
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作者 史道华 张翼 郭兆贵 《Journal of Chinese Pharmaceutical Sciences》 CAS 1996年第1期1-6,共6页
The cardiac and vascular effect of ethanolamine nitrate ester ferulate (ENF) wasinvestigated on isolated working guinea pig heart (IWH) and rat aortic ring. The coronary blood flowwas remarkably increased while the c... The cardiac and vascular effect of ethanolamine nitrate ester ferulate (ENF) wasinvestigated on isolated working guinea pig heart (IWH) and rat aortic ring. The coronary blood flowwas remarkably increased while the cardiac functions of IWH were not significantly altered by ENFranging from 10-8 to 10-4 mol/L. The percentages of vasorelaxation of ENF t 10 μmol/L) and nicoran-dil (NIC, 10 μmol/L) on K+ (80 mmol/L)-induced contraction in aortic rings were 72 ± 8% and17±8%, respectively. The relaxation effects of ENF and NIC on phenylephrine (PE, 5 μmol/L) in-duced contraction were in a dose-dependent manner. When vessel segments were exposed to PE withmethylene blue (MB, 10 μmol/L) or with glibenclamide (GLI, 10 pmol/L), the percentages of relaxa-tion of ENF (10 μmol/L) and NIC ( 1 0 μmol/L) were 4 1 ±11 % and 49±7% or 76± 14% and the 33±9%,respectively. The results suggested that ENF improved coronary circulation and the vasodilation of ENF was mediated bv nitrate-like action. 展开更多
关键词 Ethanolamine nitrate ester ferulate. Nicorandil. Cardiac function Vasodila-tion lsolated working heart
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参附注射液对大鼠离体心肌缺血再灌注心肌组织自噬的调控作用 被引量:10
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作者 王勇 刘学武 +2 位作者 代志 石镇港 曾贵荣 《中国新药杂志》 CAS CSCD 北大核心 2019年第24期3010-3015,共6页
目的:研究参附注射液对大鼠离体心肌缺血再灌注心肌组织自噬的调控作用。方法:采用Langendorff离体灌流系统建立大鼠离体心脏缺血再灌注模型,给予0. 5%,1%和2%参附注射液,检测不同时间心功能指标、灌流液心肌酸激酶(creatine kinase,CK... 目的:研究参附注射液对大鼠离体心肌缺血再灌注心肌组织自噬的调控作用。方法:采用Langendorff离体灌流系统建立大鼠离体心脏缺血再灌注模型,给予0. 5%,1%和2%参附注射液,检测不同时间心功能指标、灌流液心肌酸激酶(creatine kinase,CK)、心肌酸激酶同工酶[creatine kinase,MB form (CKMB)]、乳酸脱氢酶(lactate dehydrogenase,LDH)含量以及心肌组织中自噬标志蛋白Beclin-1,LC3的表达。结果:0. 5%参附注射液能明显降低灌流液LDH含量,1%,2%参附注射液能明显降低灌流液CK,CK-MB,LDH含量,增加心肌缺血再灌注模型心率、左心室发展压(left ventricularend-diastolic pressure,LVDP)、左心室内压力下降最大速率(-dp/dtmax)、左心室内压力上升最大速率(+dp/dtmax),降低心肌组织Beclin-1,LC3Ⅱ/LC3Ⅰ蛋白表达。结论:参附注射液可通过抑制心肌自噬过度激活,发挥心肌保护作用。 展开更多
关键词 参附注射液 缺血再灌注 心脏/离体 大鼠
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Effect of hypertonic saline solution on the left ventricular functions of isolated hearts from burned rats
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作者 周继红 刘大维 +1 位作者 王正国 朱佩芳 《Chinese Journal of Traumatology》 CAS 2002年第3期151-155,共5页
Objective: To study the effect of hypertonic saline solution on the left ventricular functions of isolated hearts from burned rats. Methods: Thirty six Wistar rats were used and divided into 4 groups: (1) normal heart... Objective: To study the effect of hypertonic saline solution on the left ventricular functions of isolated hearts from burned rats. Methods: Thirty six Wistar rats were used and divided into 4 groups: (1) normal hearts perfused with isotonic Krebs Henseleit solution; (2) normal hearts perfused with Krebs Henseleit solution which contained 215 mmol/L Na +; (3) hearts of rats suffered from 25% TBSA third degree burn and perfused with isotonic Krebs Henseleit solution; (4) hearts of the burned rats perfused with Krebs Henseleit solution which contained 215 mmol/L Na +. The systolic and diastolic functions of the left ventricle were observed.Results: During perfusion, there were very short periods of decrease in heart systolic and diastolic functions at first, but they recovered very soon and even became stronger than normal both in the normal and burned rats. The systolic and diastolic functions of the hearts increased very significantly when the perfusion solution was changed to isotonic solution from the hypertonic solutions. The effect of the hypertonic saline solution on the ventricular systolic and diastolic improvements was stronger in the hearts of the burned rats than that in the normal hearts. Conclusions: Hypertonic saline solution can directly affect myocardium and significantly improve the ventricular systolic and diastolic functions, especially in the hearts of the burned rats. 展开更多
关键词 BURNS Saline solution hypertonic Heart perfusion
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