Preliminary study of Glytan on treating portal hypertension rats induced by biliary liver fibrosis
- VernacularTitle:肝络通防治大鼠胆汁性肝纤维化门静脉高压症的初步研究
- Author:
Qinghong DU
;
Lin HAN
;
Junjie JIANG
;
Pengtao LI
;
Huiling TANG
- Publication Type:Journal Article
- Keywords:
Portal hypertension;
Liver microcirculation;
Hyperdynamic circulation;
Glytan;
Experimental study
- From:
China Journal of Traditional Chinese Medicine and Pharmacy
2005;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the mechanism of Glytan lowering portal pressure induced by biliary liver fibrosis. Methods: SD male rats, 240-260g weight around, were randomly divided into sham-operation group, model group, propranolol group, Glytan high-dose, middle-dose and low-dose group according to the weight. Portal hypertension was induced by common bile duct ligation in rats. After two and four weeks, measured the portal pressure(PP) of each group, observed the histological changes of liver by HE staining, tested liver function and the concentration of endothelin-1 in systemic circulation and mesenteric circulation radioimmnuoassay. Results: After two and four weeks, portal pressure of model group rats increased significantly. Both Glytan and propranolol can decrease PP after two and four weeks, and the pressure-relief effect was similar between the two drugs. HE staining showed that Glytan can significantly inhibit the formation of collagen, promote the recovery of liver tissue structure; liver function indicated a significant decrease in serum AST, ALT, TBIL and Na+ concentration. In addition, Glytan decreased the concentration of endothelin -1 in systemic circulation, increased it in mesenteric circulation after two weeks. Conclusion: Glytan decrease PP by improving liver function and microcirculation, inhibiting collagen formation and water-sodium retention after long-term therapy, ameliorating hyperdynamic circulation at the early stage.
