目的探讨火棘多糖对四氯化碳(CCI_4)所致大鼠肝损伤的保护作用。方法将50只Wistar大鼠随机分为5组:对照组,CCI_4模型组,联苯双酯(BP)组,火棘多糖200、400 mg/kg组。对照组大鼠中腹膜下注射橄榄油,其余各组大鼠腹膜下注射30%CCI_4,联苯双酯组、火棘多糖组分别灌胃BP 200 mg/kg,火棘多糖200、400 mg/kg。5周后,测定血清中丙氨酸转氨酶(ALT)及天冬氨酸转氨酶(AST)含量;检测肝组织中丙二醛、谷胱甘肽过氧化物酶(GSH-Px)含量及总抗氧化能力(T-AOC)活性;用real time PCR检测大鼠肝组织中核因子相关因子2(Nrf2)及过氧化氢酶(CAT)mRNA表达变化。结果与CCI_4模型组大鼠血清ALT、AST含量[(521.42±68.21)、(589.17±39.44)U/L]比较,火棘多糖200、400 mg/kg组大鼠血清ALT、AST含量[分别为(221.13±28.46)、(190.31±27.32)与(286.4±31.57)、(224.6±30.52)U/L]明显降低,差异有统计学意义(P<0.05);与CCI_4模型组大鼠肝组织中丙二醛...
【英文摘要】
Objective To study hepatoprotective effect of Pyracantha fortuneana polysaccharides on liver injury induced by carbon tetrachloride(CCI_4) in rats.Methods Fifty Wistar rats were randomly divided into five groups:control group,CCI_4 group,biphenyldicarboxylate pills(BP) group,and 200 and 400 mg/kg Pyracantha fortuneana polysaccharides groups.The rats of control group were given olive oil by intraperitoneal injection(IP) and those of other groups were given 30%CCI_4 by IP,respectively.The rats of BP group wer...