绞股蓝多糖对四氯化碳急性肝损伤的保护作用

Academic Journal of Chinese PLA Medical School(2013)

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Abstract
目的探讨绞股蓝多糖(gynostemma pentaphyllum makino polysaccharide,PGP)对四氯化碳(carbon tetrachloride,CCl4)急性肝损伤的保护作用。方法 48只雄性昆明小鼠随机分为正常对照组、CCl4损伤组、PGP保护组(PGP浓度分别为3 mg/kg、6 mg/kg、12 mg/kg、18 mg/kg 4组),每组各8只。CCl4腹腔注射建立小鼠急性肝损伤模型。采用肝组织切片病理学观察,测定血清丙氨酸氨基转移酶(alanine aminotransferase,ALT)、天冬氨酸氨基转移酶(aspartate aminotransferase,AST)活性。结果与CCl4损伤组比较,PGP各保护组肝组织病理改变均明显减轻,PGP各保护组血清ALT、AST活性明显降低(P<0.05),以绞股蓝多糖浓度6 mg/kg保护效果最佳。结论 PGP对CCl4急性肝损伤有明显的保护作用,其机制可能与抗氧化,稳定细胞膜和溶酶体膜防止肝细胞坏死有关。
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Key words
alanine aminotransferase,gynostemma pentaphyllum polysaccharide,hepatic injury,aspartate aminotransferase,carbon tetrachloride
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