摘要
目的探索2,4-二羟基二苯甲酮(BP-1)对二甲基亚硝胺(DMN)所致小鼠急性肝损伤的保护作用。方法将体重18~22g的ICR小鼠随机分为对照组、模型组、BP-1低、中、高组(200、400、800mg/kg)灌胃给药4d,末次给药30min后腹腔注射给予DMN22mg/kg,24h处死,测定谷丙转氨酶(ALT),谷草转氨酶(AST),乳酸脱氢酶(LDH)活性;测定肝脏还原性谷胱甘肽(GSH),氧化型谷胱甘肽(GSSG)和丙二醛(MDA)含量;观察肝脏病理组织学变化。结果与对照组比较,模型组小鼠血清ALT、AST、LDH活性均明显升高(P〈0.01),MDA含量[(0.256±0.059)μmol/g]升高(P〈0.01),肝小叶出现大量坏死细胞;与模型组比较,BP-1各剂量组小鼠血清ALT、AST、LDH水平均明显下降(P〈0.05),肝组织中GSH/GSSG比值升高(P〈0.01),高剂量BP-1组小鼠肝脏MDA含量[(0.062±0.034)μmol/g]明显下降(P〈0.01),肝小叶坏死区域减少。结论2,4-二羟基二苯甲酮对DMN所致小鼠急性肝损伤有保护作用。
Objective To investigate the protective effect of 2,4-dihydroxybenzophenone (BP-1) on acute hepato- toxicity induced by dimethylnitrosamine (DMN) in mice. Methods Twenty-five male ICR mice with body weight of 18 - 22 g were divided into control group, model group, low, moderate, and high dose BP-1 exposure group ( 200,400, and 800 mg/kg). BP-1 was administrated to the mice in exposure groups for 4 days and DMN was injected into the mice 30 min after BP-1 administration on the 4th day. Twenty-four hours after the treatment, all mice were killed and activities
出处
《中国公共卫生》
CAS
CSCD
北大核心
2014年第2期206-208,共3页
Chinese Journal of Public Health
基金
重大新药创制科技重大专项(2009ZX09103-007)