The Efficacy of V. odorata Extract in the Treatment of Insomnia: A Systematic Review and Meta-Analysis

AimThis systematic review and meta-analysis was performed to assess the effect of Viola odorata (V. odorata) extract in the treatment of insomnia.MethodsPubMed, EMBASE, and Cochrane Library databases, as well as references of related articles, were searched. Finally, four articles with five clinical...

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Main Authors: Shuangfeng Huang, Qianqian Huang, Zhongbao Zhou, Junliang Zhang, Yan Zhan, Zhigang Liang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-06-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2022.730311/full
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author Shuangfeng Huang
Qianqian Huang
Zhongbao Zhou
Junliang Zhang
Yan Zhan
Zhigang Liang
author_facet Shuangfeng Huang
Qianqian Huang
Zhongbao Zhou
Junliang Zhang
Yan Zhan
Zhigang Liang
author_sort Shuangfeng Huang
collection DOAJ
description AimThis systematic review and meta-analysis was performed to assess the effect of Viola odorata (V. odorata) extract in the treatment of insomnia.MethodsPubMed, EMBASE, and Cochrane Library databases, as well as references of related articles, were searched. Finally, four articles with five clinical trials including 224 patients were included in the analysis.ResultsThe obtained results indicated a greater improvement in total PSQI scores (MD,−4.67; P = 0.0002), subjective sleep quality score (MD,−0.91; P = 0.003), sleep duration score (MD,−0.77; P < 0.00001), and ISI score (MD,−6.30; P = 0.009) in the Viola extract group compared with the placebo group. However, the Viola extract group did not significantly differ in sleep latency (MD,−0.85; P = 0.08), habitual sleep efficiency (MD,−0.61; P = 0.21), sleep disturbances (MD,−0.36; P = 0.11), and daytime dysfunction (MD,−0.94; P = 0.12) from the placebo group.ConclusionsViola extract supplement led to a greater improvement in total PSQI scores, subjective sleep quality score, sleep duration score, and ISI score compared with the placebo group of patients with chronic insomnia.
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spelling doaj.art-ede5ffdcdcd6415fb5ed0d91444f06032022-12-22T02:29:05ZengFrontiers Media S.A.Frontiers in Neurology1664-22952022-06-011310.3389/fneur.2022.730311730311The Efficacy of V. odorata Extract in the Treatment of Insomnia: A Systematic Review and Meta-AnalysisShuangfeng Huang0Qianqian Huang1Zhongbao Zhou2Junliang Zhang3Yan Zhan4Zhigang Liang5The Second Clinical Medical College, Binzhou Medical University, Yantai, ChinaDepartment of Gastroenterology, People's Hospital of Jimo District, Qingdao, ChinaBeijing TianTan Hospital, Capital Medical University, Beijing, ChinaDepartment of Neurology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, ChinaDepartment of Neurology, Yantai Affiliated Hospital of Binzhou Medical University, The Second Clinical Medical College of Binzhou Medical University, Yantai, ChinaDepartment of Neurology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, ChinaAimThis systematic review and meta-analysis was performed to assess the effect of Viola odorata (V. odorata) extract in the treatment of insomnia.MethodsPubMed, EMBASE, and Cochrane Library databases, as well as references of related articles, were searched. Finally, four articles with five clinical trials including 224 patients were included in the analysis.ResultsThe obtained results indicated a greater improvement in total PSQI scores (MD,−4.67; P = 0.0002), subjective sleep quality score (MD,−0.91; P = 0.003), sleep duration score (MD,−0.77; P < 0.00001), and ISI score (MD,−6.30; P = 0.009) in the Viola extract group compared with the placebo group. However, the Viola extract group did not significantly differ in sleep latency (MD,−0.85; P = 0.08), habitual sleep efficiency (MD,−0.61; P = 0.21), sleep disturbances (MD,−0.36; P = 0.11), and daytime dysfunction (MD,−0.94; P = 0.12) from the placebo group.ConclusionsViola extract supplement led to a greater improvement in total PSQI scores, subjective sleep quality score, sleep duration score, and ISI score compared with the placebo group of patients with chronic insomnia.https://www.frontiersin.org/articles/10.3389/fneur.2022.730311/fullsystematic review and meta-analysisViola extractinsomniaPittsburgh Sleep Quality Indexinsomnia severity index
spellingShingle Shuangfeng Huang
Qianqian Huang
Zhongbao Zhou
Junliang Zhang
Yan Zhan
Zhigang Liang
The Efficacy of V. odorata Extract in the Treatment of Insomnia: A Systematic Review and Meta-Analysis
Frontiers in Neurology
systematic review and meta-analysis
Viola extract
insomnia
Pittsburgh Sleep Quality Index
insomnia severity index
title The Efficacy of V. odorata Extract in the Treatment of Insomnia: A Systematic Review and Meta-Analysis
title_full The Efficacy of V. odorata Extract in the Treatment of Insomnia: A Systematic Review and Meta-Analysis
title_fullStr The Efficacy of V. odorata Extract in the Treatment of Insomnia: A Systematic Review and Meta-Analysis
title_full_unstemmed The Efficacy of V. odorata Extract in the Treatment of Insomnia: A Systematic Review and Meta-Analysis
title_short The Efficacy of V. odorata Extract in the Treatment of Insomnia: A Systematic Review and Meta-Analysis
title_sort efficacy of v odorata extract in the treatment of insomnia a systematic review and meta analysis
topic systematic review and meta-analysis
Viola extract
insomnia
Pittsburgh Sleep Quality Index
insomnia severity index
url https://www.frontiersin.org/articles/10.3389/fneur.2022.730311/full
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