Effect of a urinary preparation on liver injury by short-term carbon tetrachloride treatment in rats

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题名:	Effect of a urinary preparation on liver injury by short-term carbon tetrachloride treatment in rats
作者:	Lai, TY;Wu, YW;Lin, WC
贡献者:	藥學院中藥所;China Med Coll, Grad Inst Chinese Pharmaceut Sci, Taichung, Taiwan
日期:	1999
上传时间:	2010-09-24 14:59:02 (UTC+8)
出版者:	INST ADV RES ASIAN SCI & MED
摘要:	This study investigated the anticonvulsant effect of Uncaria rhynchophylla (UR) and the physiological mechanisms of its action in rats. A total of 70 male Sprague-Dawley (SD) rats were selected for study. Thirty four of these rats were divided into 5 groups as follows: 1) Control group (n = 6): received intraperitoneal injection (i.p.) of kainic acid (KA, 12 mg/kg); 2) UR1000 group (n = 10), 3) UR500 group (n = 6) 4) UR250 group, received UR 1000, 500, 250 mg/kg i.p. 30 min prior to KA administration, respectively; 5) Contrast group: received carbamazepine 20 mg/kg i.p. 30 min prior to KA administration. Behavior and EEG were monitored from 15 min prior to drug administration to 3 hours after KA administration. The number of wet dog shakes were counted at 10 min intervals throughout the experimental course. The remaining 36 rats were used to measure the lipid peroxide level in the cerebral cortex one hour after KA administration. These rats were divided into 6 groups of B rats as follows: 1) Normal group: no treatment was given; 2) Control group: received KA (12 mg/kg) i.p.; 3) UR1000 group, 4) UR500 group, 5) UR250 group, received UR 1000, 500, 250 mg/kg i.p. 30 min prior to KA administration, respectively; 6) Contrast group: received carbamazepine 20 mg/kg i.p. 30 min prior to KA administration. Our results indicated that both UR 1000 and 500 mg/kg decreased the incidence of KA-induced wet dog shakes, no similar effect was observed in the UR 250 mg/kg and carbamazepine 20 mg/kg group. Treatment with UR 1000 mg/kg, 500 mg/kg, or 250 mg/kg and carbamazepine 20 mg/kg decreased KA-induced lipid peroxide level in the cerebral cortex and was dose-dependent. These findings suggest that the anticonvulsant effect of UR possibly results from its suppressive effect on lipid peroxidation in the brain.
關聯:	AMERICAN JOURNAL OF CHINESE MEDICINE 27(2):241-250
显示于类别:	[中國藥學研究所(已停用)] 期刊論文

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