[关键词]
[摘要]
目的 研究逍遥散对四氯化碳(CCl4)致大鼠肝纤维化的干预作用机制。方法 将30只大鼠随机分为空白对照组、模型组、逍遥散组。除空白对照组外,均采用皮下注射CCl4橄榄油溶液制备肝纤维化模型,逍遥散组同时灌胃给予逍遥散水煎液。检测大鼠肝匀浆中超氧化物歧化酶(SOD)、丙二醛(MDA)以及血清中丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)、白蛋白(ALB)、总蛋白(TP)、总胆红素(TBIL)、转化生长因子β1(TGF-β1)、肿瘤坏死因子α(TNF-α)、人基质金属蛋白酶组织抑制因子-1(TIMP-1)、血小板衍生生长因子(PDGF)、白介素6(IL-6)、透明质酸(HA)、层粘蛋白(LN)、Ⅲ型前胶原(PCⅢ)、Ⅳ型胶原(C-Ⅳ)的含量,并进行肝组织病理学检查。结果 与模型组比较,逍遥散能显著降低MDA、ALT、AST、TBIL、TGF-β1、TNF-α、TIMP-1、PDGF、IL-6、HA、LN、PCⅢ、C-Ⅳ水平(P <0.05,P <0.01),明显升高SOD、ALB、TP水平(P <0.05,P <0.01)。组织病理检查显示,逍遥散能减轻肝细胞变性、坏死、炎性浸润,促进肝细胞再生。结论 逍遥散具有抗肝纤维化的作用,其作用机制可能是抑制胶原纤维蛋白的合成与分泌,清除自由基,减少脂质过氧化,促进肝细胞再生,加快肝细胞修复。
[Key word]
[Abstract]
Objective To research the intervention mechanism of Xiaoyao Powder on rats with liver fibrosis induced by carbon tetrachloride(CCl4). Methods Rat liver fibrosis model was established by subcutaneous injection of 40% CCl4 olive oil solution for 9 continuous weeks,and was given Xiaoyao Powder at the same time. After intervention,we observed the superoxide dismutase(SOD) and malondialdehyde(MDA) activities in liver homogenate,and detected serum levels of alanine aminotransferase(ALT),aspartate aminotransferase(AST),albumin(ALB),total protein(TP),total bilirubin(TBIL),transforming growth factor beta 1(TGF-β1),tumor necrosis factor alpha(TNFα),tissue inhibitor of metalloproteinase 1(TIMP-1),platelet-derived growth factor(PDGF),interleukin 6(IL-6),hyaluronic acid(HA),laminin(LN),type Ⅲ precollagen(PCⅢ),and type Ⅳ collagen(C-Ⅳ). Meanwhile,the hepatic histopathological features were also observed. Results Compared with the model group,Xiaoyao Powder could significantly reduce the levels of MDA,ALT,AST,TBIL,TGF-β1,TNF-α,TIMP-1,PDGF,IL-6,HA,LN,PCⅢ,C-Ⅳ(P <0.05,P <0.01),significantly increase the levels of SOD,ALB and TP(P <0.05,P <0.01). The results of pathological examination showed that Xiaoyao Powder could reduce the degeneration and necrosis of liver cells,relieve inflammatory infiltration,and promote the regeneration of liver cells. Conclusion Xiaoyao Powder has anti-fibrosis action on rats with liver fibrosis,and its mechanism may be through inhibiting protein synthesis and secretion of collagen fibers,clearing free radicals,reducing lipid peroxidation,promoting the regeneration of liver cells,and enhancing the recovery of liver cells.
[中图分类号]
R285.5
[基金项目]
国家自然科学基金资助项目(81102769,81173645);科技部重大专项资助(2014ZX09201022-006);黑龙江省自然科学基金面上项目(H201371,H201312);黑龙江中医药大学优秀创新人才支持计划。