文献类型：期刊文献

英文题名：Flos Albiziae aqueous extract and its active constituent quercetin potentiate the hypnotic effect of pentobarbital via the serotonergic system

作者：Ye, Meng-Fei[1];Liu, Zheng[1,2];Lou, Shu-Fang[1];Chen, Zhen-Yong[1];Yu, Ai-Yue[3];Liu, Chun-Yan[4];Yu, Chao-Yang[1];Zhang, Hua-Fang[1];Zhang, Jian[1]

机构：[1]Shaoxing Univ, Coll Med, Dept Basic Med, Shaoxing 312000, Zhejiang, Peoples R China;[2]Shaoxing Univ, Judicial Identificat Ctr, Lab Forens Toxicol, Shaoxing 312000, Zhejiang, Peoples R China;[3]Shaoxing Univ, Yuanpei Coll, Dept Basic Course, Shaoxing 312000, Zhejiang, Peoples R China;[4]Shaoxing Peoples Hosp, Dept Orthoped, Shaoxing 312000, Zhejiang, Peoples R China

年份：2015

卷号：3

期号：6

起止页码：835

外文期刊名：BIOMEDICAL REPORTS

收录：ESCI(收录号：WOS:000367188800017)、WOS

语种：英文

外文关键词：quercetin; hypnotic; serotonergic system

外文摘要：Flos albiziae (FA) is reportedly used for treatment of insomnia and anxiety in traditional medicine. The hypnotic effect of an extract of FA (FAE) and its constituent quercetin [2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one, QR] was examined in mice. QR is a widely distributed natural flavonoid abundant in FA flowers and other tissues. The possible mechanisms underlying the hypnotic effects of FAE and QR were investigated using behavioral pharmacology. FAE and QR significantly potentiated pentobarbital-induced [50 mg/kg, intraperitoneal (ip)] sleep (prolonged sleeping time; shortened sleep latency) in a dose-dependent manner, and these effects were augmented by administration of 5-hydroxytryptophan (5-HTP), a precursor of 5-hydroxytryptamine. With a sub-hypnotic dose of pentobarbital (28 mg/kg, ip), FAE and QR significantly increased the rate of sleep onset and were synergistic with 5-HTP (2.5 mg/kg, ip). Pretreatment with p-chlorophenylalanine, an inhibitor of tryptophan hydroxylase, significantly decreased sleeping time and prolonged sleep latency in pentobarbital-treated mice, whereas FAE and QR significantly reversed this effect. Data show that FAE and QR have hypnotic activity, possibly mediated by the serotonergic system. The present study offers a rationale for the use of FA in treating sleep disorders associated with serotonin system dysfunction.