Protective effects of cardioplegic solution containing Shenfu injectio on isolated rabbit heart against ischemia-reperfusion injury
- VernacularTitle:含不同浓度参附注射液的停跳液对兔离体心脏缺血再灌注损伤的保护作用
- Author:
Jun CAO
;
Su MIN
;
- Publication Type:Journal Article
- Keywords:
SHENFU DECOCTION;
Cardioplegic solution;
Myocardial reperfusion injury
- From:
Chinese Journal of Anesthesiology
1994;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the protective effects of cardioplegic solution containing different concentrations of Shenfu injectio on isolated rabbit heart against ischemia-reperfusion(I/R)injury.Methods Forty adult long-ear white rabbits weighing 3.8-4.2 kg were anesthetized with intraperitoneal thiopental 40 mg?kg~(-1).Heparin 4 mg?kg~(-1) was injected Ⅳ.Hearts were immediately removed and mounted on a Langendorff apparatus and perfused via aorta with Krebs-Henseleit solution aerated at 37℃ with 95 % O_2 and 5 % CO_2.Forty isolated hearts were randomly divided into 5 groups(n=8 each):control group in which cardiac arrest was induced with St Thomas hyperkkaelemic cardioplegic solution and 4 Shenfu groups(SF)in which cardiac arrest was induced with St Thomas cardioplegic solution containing different concentrations of Shenfu injectio:1%(SF1), 5%(SF5),10%(SF10)and 15%(SF15).All hearts in the 5 groups were subjected to global ischemia for 45 min followed by 40 min reperfusion.Coronary effluent was collected after reperfusion for determination of CK-MB activity.Mitochondria were isolated arid Ca~(2+) and MDA content was measured.Myocardial ultrastructure was observed using electron microscope.Mitochondrial injury was assessed by using Flameng score and stereology(NA and ?).Results The CK-MB activity in coronary effluent,mitochondrial MDA and Ca~(2+) content and Flameng score were decreased and NA was increased in group SF1,SF5 and SF10 as compared with control group(P＜ 0.05 or 0.01).The ? of mitochondria was increased in group SF5 and SF10 as compared with control group(P＜ 0.01).The CK-MB activity and Ca~(2+) content were increased and MDA content was decreased in group SF15 as compared with control group(P＜0.05).The pathological damage to myocardium was significantly less in group SF5 and SF10 than in control group.Conclusion Shenfu injectio added to St Thomas cardioplegic solution at concentration of 5%～10% can protect myocardial mitochondria against I/R injury.
