文章基本信息

标题：Efficacy of Polygonatum sibiricum on Mild Insomnia: A Randomized Placebo-Controlled Trial
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作者：Eunji Ha ; Haejin Hong ; Tammy D. Kim 等
期刊名称：Nutrients
电子版ISSN：2072-6643
出版年度：2019
卷号：11
期号：8
页码：1719-1731
DOI：10.3390/nu11081719
出版社：MDPI Publishing
摘要：Polygonatum sibiricum (PS) rhizome, which contains glyceryl-1-monolinoleate as its primary active component, has been shown to improve insomnia in animal models. Based on these findings, we aimed to investigate the safety and efficacy of PS rhizome extract in improving sleep quality in individuals with mild insomnia. Eighty individuals with mild insomnia were enrolled in a four-week, randomized, double-blind, placebo-controlled trial of PS rhizome extract (500 mg/day, n = 40, PS group) or placebo (n = 40, placebo group). The primary outcome measure was change in total score on the Athens Insomnia Scale (AIS) to indicate sleep quality. The secondary outcome measures included change in actigraphy data and perfusion levels in the brain regions within the default mode network (DMN), which is known to play a key role in insomnia. The PS group showed greater improvement in the total AIS score with a significant increase in total sleep time, relative to the placebo group. In addition, significant group-by-visit interactions were observed in the perfusion level of the medial prefrontal cortex within the DMN. Findings of the current study provide first evidence that PS rhizome extract could be an effective natural ingredient for improving sleep in mild insomnia using a human model.
关键词：Polygonatum ; insomnia; randomized controlled trial; cerebral perfusion; arterial spin labeling; medial prefrontal cortex; default mode network Polygonatum ; insomnia ; randomized controlled trial ; cerebral perfusion ; arterial spin labeling ; medial prefrontal cortex ; default mode network