Protection of heme oxygenase-1 against hepatic ischemia reperfusion injury in cirrhotic rats
- VernacularTitle:血红素氧合酶-1对肝硬化大鼠肝脏缺血再灌注损伤的保护作用
- Author:
Hui XUE
;
Hua GUO
;
Jieying JIAO
- Publication Type:Journal Article
- Keywords:
heme oxygenase-1;
hepatic ischemia reperfusion;
NF-?B;
caspase-3
- From:Journal of Xi'an Jiaotong University(Medical Sciences)
1982;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the proctective effect of heme oxygeanse-1(HO-1) on cirrhotic rats after hepatic ischemia reperfusion injury.Methods All the rats were randomly divided into 5 groups as follows: normal group(N),liver cirrhosis group(LC),sham operation group(S), ischemia reperfusion group(I/R),and I/R+hemin group.Except for N group,the other groups were injected with 40% CCl4 twice a week.After 11 weeks,the model of liver cirrhosis was formed.The segmental(70%) hepatic ischemia reperfusion operation was carried out one week later.The animals were sacrificed 6h after reperfusion.Blood was collected to measure the liver function,antioxidative ability,NF-?B and caspase-3,and HO-1 expressions were studied by immunohistochemistry method. Results Administration of hemin to induce high HO-1 expression could lessen hepatic injury,increase MnSOD enzyme level,and decrease caspase-3 and NF-?B expresssion.Conclusion HO-1 plays an important role in protecting liver cirrhosis against ischemia reperfusion injury by increasing MnSOD enzyme level and decreasing expression of caspase-3 and NF-?B.
