秃疮花提取物对小鼠免疫性肝损伤的保护作用

目的　探讨秃疮花提取物 (DLF)对卡介苗 (BCG)和脂多糖 (LPS)诱导的小鼠免疫性肝损伤的影响。方法　ivBCG和LPS诱导小鼠免疫性肝损伤 ,在注射LPS前 ,小鼠ip不同剂量的DLF(0 5、1 0、2 0g·kg-1) ,连续 10d。观察血清谷丙转氨酶 (ALT)、谷草转氨酶 (AST)、乳酸脱氢酶 (LDH)的活性及血清白蛋白 (ALB)、球蛋白 (GLB)含量变化 ,测定肝组织匀浆中脂质过氧化产物丙二醛 (MDA)含量和超氧化物歧化酶(SOD)活性 ,同时进行肝组织病理学观察。结果　不同剂量的DLF治疗组小鼠血清ALT、AST、LDH活性及肝组织匀浆MDA含量均低于模型组 ,血清蛋白维持正常比例 ,且肝组织损伤不同程度地减轻。结论　秃疮花提取物对BCG和LPS诱导的小鼠免疫性肝损伤具有一定的保护作用

Protective effect of dicranostiga leptodu (Maxim.) Fedde on immunological live injury in mice

Aim To investigate the effect of Dicranostiga Leptodu (Maxim) Fedde (DLF) on experimental liver injury induced by Calmette Guerin bacillus vaccine (BCG) and Lipopolysaccharide (LPS) in mice. Methods Experimental liver injury was induced by Calmette Guerin bacillus vaccine and Lipopolysaccharide in male mice by injecting via tail vein (50 μg·kg -1 ), and administering LPS (10 μg·mouse -1 ) 10 d later. Therapeutic groups were given respectively with DLF (0 5,1 0,2 0 g·kg -1 ) before administration of LPS. The level of ALT, AST and LDH and the concentration of ALB and GLB in serum were measured by automatic biochemistry analyzer, and MDA in liver plasma was measured by TBA method and the level of SOD was measured by pyrogallol auto oxidation method. Pathological morphological changes in liver tissue were observed. Results The three experimental groups were found with significant decrease in the elevation of serum GPT and LDH level and the content of MDA in the liver plasma. The liver tissue damages were also ameliorated. Conclusion DLF has protective effect against the experimental liver injury induced by BCG and LPS in mice.