积雪草总苷抗DMN诱导大鼠肝纤维化的作用

目的 研究积雪草总苷抗实验性大鼠肝纤维化的作用。方法 采用二甲基亚硝氨(dimethylni-trosamine，DMN)腹腔注射6周，制备大鼠肝纤维化模型。动物随机分为6组(正常组、模型组、秋水仙碱组、积雪草总苷大、中、小剂量组)。于造模开始时同时给予积雪草总苷灌胃，实验结束后分别检测血清总蛋白(TP)、白蛋白(ALB)、谷丙转氨酶(ALT)、谷草转氨酶(AST)、透明质酸(HA)、层粘连蛋白(LN)含量，并作肝组织病理学观察。结果 积雪草总苷能改善肝功能，与模型组相比可明显降低血清ALT、AST、HA的含量(P<0．05)。肝组织病理学检查显示具有抗肝纤维化作用。结论 积雪草总苷对DMN诱导的大鼠慢性肝纤维化具有良好的治疗作用。

Effect of Total Glucosides of Centella Asiatica on Antagonizing Liver Fibrosis Induced by Dimethylnitrosamine in Rats

Objective To investigate the anti liver fibrosis effect of total glucosides of Centella asiatica (GCA) in experimental rats. Methods Rat liver fibrosis model was induced by injecting dimethylnitrosamine (DMN) intraperitoneally for 6 weeks. Rats were randomly divided into 6 groups, the normal group, the model group, the positive control group treated by colchicine, and the three GCA groups treated by high, moderate and low dosage of GCA through gastrogavage started simultaneously with the modeling. At the end of the experiment, levels of serum total protein (TP), albumin (ALB), alanine transaminase (ALT), aspartate aminotransferase (AST), hyaluronic acid (HA), laminin (LN) were measured, and the pathology of liver tissue was observed. Results The liver function in the GCA groups was improved, the levels of serum ALT, AST, HA were significantly lower than those in the model group (P<0 05). Histopathological observation showed that GCA has significant anti liver fibrosis effect. Conclusion GCA has significant preventive and therapeutic effect on DMN induced liver fibrosis in rats.