Mechanism of gastrointestinal abnormal motor activity induced by cisplatin in conscious dogs
Mechanism of gastrointestinal abnormal motor activity induced by cisplatin in conscious dogs作者机构：Department of General Surgical Science Gunma University Graduate School of Medicine
出 版 物：《World Journal of Gastroenterology》 (世界胃肠病学杂志（英文版）)
年 卷 期：2014年第20卷第42期
页 面：15691-15702页
核心收录：
学科分类：1007[医学-药学(可授医学、理学学位)] 1006[医学-中西医结合] 100706[医学-药理学] 1002[医学-临床医学] 100602[医学-中西医结合临床] 10[医学]
主 题：Cisplatin Emesis 5-hydroxytryptamine Abnormal moto
摘 要：AIM: To investigate whether 5-hydroxytryptamine(serotonin; 5-HT) is involved in mediating abnormal motor activity in dogs after cisplatin ***: After the dogs had been given a 2-wk recovery period, all of them were administered cisplatin, and the motor activity was recorded using strain gauge force transducers. Blood and intestinal fluid samples were collected to measure 5-HT for 24 h. To determine whether 5-HT in plasma or that in intestinal fluids is more closely related to abnormal motor activity we injected 5-HT into the bloodstream and the intestinal tract of the ***: Cisplatin given intravenously produced abnormal motor activity that lasted up to 5 h. From 3 to 4 h after cisplatin administration, normal intact dogs exhibited retropropagation of motor activity accompanied by emesis. The concentration of 5-HT in plasma reached the peak at 4 h, and that in intestinal fluids reached the peak at 3 h. In normal intact dogs with resection of the vagus nerve that were administered kytril, cisplatin given intravenously did not produce abnormal motor activity. Intestinal serotonin administration did not produce abnormal motor activity, but intravenous serotonin administration ***: After the intravenous administration of cisplatin, abnormal motor activity was produced in the involved vagus nerve and in the involved serotonergic neurons via another pathway. This study was the first to determine the relationship between 5-HT and emesis-induced motor activity.
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