狭基线纹香茶菜对D-半乳糖胺所致大鼠急性肝损伤的保护作用

目的研究狭基线纹香茶菜对D-半乳糖胺(D-Gal)所致大鼠急性肝损伤的保护作用.方法60只大鼠随机分为正常对照组、模型组、高中低剂量给药组、阳性对照组.给药组按15、7.5、3.75 g/kg剂量以狭基线纹香茶菜水提物灌胃,阳性对照组按45 mg/kg联苯双酯灌胃,共7 d.灌胃给药第6 d,模型组和给药组按550 mg/kg体重腹腔注射D-Gal一次.第11 d末次给药24 h(腹腔注射36 h)后,测定血清生化指标,并测体重和肝脏重、脾重、胸腺重,求脏器系数,同时切取肝脏检测肝糖原,取肝组织作病理观察.结果狭基线纹香茶菜可显著降低急性肝损伤大鼠血清ALT、AST、ALP水平和TBA、T-Bil含量,促进血清中TP、ALB和肝组织中肝糖原的增加,对肝重量增大和胸腺萎缩有抑制作用,病理检查结果也显示有明显的保肝作用.结论狭基线纹香茶菜对D-Gal所致大鼠急性肝损伤有保护作用,其作用与多环节有关.

Protective Effect of Isodon lophanthoides on Acute Hepatic Injury Induced by D-galactosamine in Rats

OBJECTIVE: To study the protective effects of Isodon lophanthoides (ILVG) aqueous extract on acute hepatic injury induced by D-galactosamine (D-Gal) in rats. METHODS: 60 rats were divided into control group, model group, and low, middle, high dosage group, Bifendate group randomly. In test groups, rats received either ILVG aqueous extract (15, 7.5, 3.75 g/kg) or Bifendate (45 mg/kg) by gastric perfusion daily for 7 consecutive days. On the sixth day, D-Gal (550 mg/kg) was given to rats by oral administration. The levels of ALT, AST, ALP, TBA, T-Bil, TP and ALB in serum were analyzed. The weight of body, liver, spleen and thymus of each rat were measured. The hepatic glycogen content was analyzed individually. Liver tissue pathology was observed. RESULTS: ILVG coud decrease the ALT, AST, ALP, TBA and T-Bil in serum, increase TP, ALB and hepatic glycogen content and restrain the enlargement of liver and the shrinkage of thymus, reduce necrosis in pathological observation. CONCLUSION: ILVG aqueous extract possesses the effect on protecting on acute hepatic injury induced by D-Gal in rats, its effect is related to multifarious mechanism.