摘要：目的 研究对乙酰氨基酚片、复方氨酚烷胺片、美扑伪麻片及柴芩清宁胶囊单次给药致小鼠肝毒性的“时-毒”“量-毒”关系.方法 在肝毒性“时-毒”关系研究中,昆明种小鼠随机分为对照组、对乙酰氨基酚片组、复方氨酚烷胺片组、美扑伪麻片组、柴芩清宁胶囊组,各给药组根据给药后取血时间随机分为给药后1、2、4、8、12、24、48、72、96 h9个亚组,3种西药给药剂量均为425.98 mg/kg(以对乙酰氨基酚水平换算),柴芩清宁胶囊给药剂量为3 680.50 mg/kg;在肝毒性“量-毒”关系研究中,昆明种小鼠随机分为对照组,对乙酰氨基酚片、复方氨酚烷胺片、美扑伪麻片、柴芩清宁胶囊高,中,低剂量组,3种西药高、中、低剂量分别为266.24、425.98、681.57mg/kg,柴芩清宁胶囊高、中、低剂量分别为1 437.70、2 300.31、3 680.50mg/kg,每组10只,雌雄各半,于给药后12h取血.给药后观察动物一般状况;在相应时间点取血及脏器,检测血清丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)和碱性磷酸酶(ALP)水平,计算肝脏、脾脏和胸腺脏器系数.结果 与对照组比较,单次ig柴芩清宁胶囊1 437.70～3 680.50mg/kg后,小鼠一般状况、血清ALT、AST、ALP水平和脏器系数均无明显变化.与对照组比较,单次ig对乙酰氨基酚片、复方氨酚烷胺片、美扑伪麻片425.98 mg/kg后,随给药后时间延长,小鼠出现怠动、毛色不华等毒性症状,12h最为明显,24～72 h消失;血清ALT、AST和ALP水平不同程度增力加,均在给药后12h达到高峰,毒性持续时间分别约达72、24和24 h;肝脏、脾脏、胸腺脏器系数均无明显变化.与对照组比较,单次ig 3种西药266.24mg/kg后,小鼠一般状况、血清ALT、AST、ALP和脏器系数均无明显变化;3种西药425.98和681.57mg/kg剂量组血清ALT、AST和ALP水平显著升高,且呈剂量相关性;681.57 mg/kg剂量可导致肝脏脏器系数明显升高,脾脏、胸腺脏器系数无明显变化.结论 单次ig柴芩清宁胶囊3 680.50 mg/kg对小鼠不造成肝损害;大剂量对乙酰氨基酚片、复方氨酚烷胺片和美扑伪麻片均可对小鼠造成一定的急性肝损伤,且肝损伤均呈现一定的“时-毒”和“量-毒”关系.%Objective To study the "time-toxicity" and "dose-toxicity" relationship of hepatotoxicity induced by Paracetamol Tablets (PT),Compound Paracetamol and Amantadine Hydrochloride Tablets (CPAH),Compound Dextromethorphan Hydrobromide Tablets (CDH),and Chaiqin Qingning Capsules (CQC) with single dose in mice.Methods In the "Time-Toxicity" relationship study,Kunming mice were randomly divided into control,PT,CPAH,CDH,and CQC group,and mice of.each drug administration group were randomly divided into nine subgroups according to the time (1,2,4,8,12,24,48,72 and 96 h after administration) of blood collection.The acetaminophen contents in PT,CPAH,and CDH groups were 425.98 mg/kg,and the dose of CQC group was 3 680.50 mg/kg.In the "Dosage-Time" relationship study,mice were randomly divided into control,PT,CPAH,CDH,and CQC high,medium and low dose group.The acetaminophen contents of high,medium,and low dose were 266.24,425.98,and 681.57 mg/kg in PT,CPAH,and CDH group,and the dose of CQC group was 1437.70,2300.31,and 3680.50 mg/kg,10 mice in each group,sex in half.Blood was collected 12 h after administration.Animal behavior was observed every day,blood and organs were collected at the corresponding time points,serum alanine aminotransferase (ALT),aspartate aminotransferase (AST),and alkaline phosphatase (ALP) level were detected,and the organs index of spleen and thymus,liver were calculated.Results There were no significant changes of ALT,AST,ALP,and organs index after once ig administration of CQC at dosage of 1437.70 mg/kg to 3680.50 mg/kg in mice.The study on "time-toxicity" relationship indicated that,after once administration of PT,CPAH,and CDH at 425.98 mg/kg,mice showed toxic symptom such as hypokinesia,dry hair and so on,12 h was the most obvious,24 ～ 72 h disappeared.The level of ALT,AST,and ALP in serum increased and reached to the peak at 12 h and then restored near normality after 72,24,and 24 h in PT,CPAH,and CDH group.Their organ index of liver,spleen and thymus all had no significant changes.The study on the "dosage-toxicity" relationship indicated that,there were no significant changes of animal behavior,ALT,AST,ALP,and organs index after once ig administration of PT,CPAH,and CDH at 266.24 mg/kg.Obvious liver injury can be induced by the three drugs with dosage of 425.98 to 681.57 mg/kg and the level of ALT,AST,and ALP increased significantly with the increase of dosage.Their liver index increased significantly with dosage of 681.57 mg/kg,but the organs index of spleen,thymus had no significant changes.Conclusion There was no hepatotoxicity after once ig administration of CQC with dosage of 3680.50 mg/kg in mice.Mice were once ig administration ofPT,CPAH,and CDH with a large dose,may induce acute liver injury and show obvious "time-toxicity" and "dose-toxicity" relationships.
