The effect of quercetin supplementation on clinical outcomes in COVID‐19 patients: A systematic review and meta‐analysis

Abstract Coronavirus disease (COVID‐19) affects both the respiratory system and the body as a whole. Natural molecules, such as flavonoid quercetin, as potential treatment methods to help patients combat COVID‐19. The aim of this systematic review and meta‐analysis is to give a comprehensive overvie...

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Main Authors: Somayeh Ziaei, Malek Alimohammadi‐Kamalabadi, Motahareh Hasani, Mahsa Malekahmadi, Emma Persad, Javad Heshmati
Format: Article
Language:English
Published: Wiley 2023-12-01
Series:Food Science & Nutrition
Subjects:
Online Access:https://doi.org/10.1002/fsn3.3715
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author Somayeh Ziaei
Malek Alimohammadi‐Kamalabadi
Motahareh Hasani
Mahsa Malekahmadi
Emma Persad
Javad Heshmati
author_facet Somayeh Ziaei
Malek Alimohammadi‐Kamalabadi
Motahareh Hasani
Mahsa Malekahmadi
Emma Persad
Javad Heshmati
author_sort Somayeh Ziaei
collection DOAJ
description Abstract Coronavirus disease (COVID‐19) affects both the respiratory system and the body as a whole. Natural molecules, such as flavonoid quercetin, as potential treatment methods to help patients combat COVID‐19. The aim of this systematic review and meta‐analysis is to give a comprehensive overview of the impact of quercetin supplementation on inflammatory factors, hospital admission, and mortality of patients with COVID‐19. The search has been conducted on PubMed, Scopus, Web of Science, EMBASE, and the Cochrane Library using relevant keywords until August 25, 2023. We included randomized controlled trials (RCTs) comparing COVID‐19 patients who received quercetin supplementation versus controls. We included five studies summarizing the evidence in 544 patients. Meta‐analysis showed that quercetin administration significantly reduced LDH activity (standard mean difference (SMD): −0.42, 95% CI: −0.82, −0.02, I2 = 48.86%), decreased the risk of hospital admission by 70% (RR: 0.30, 95% CI: 0.14, 0.62, I2 = 00.00%), ICU admission by 73% (RR: 0.27, 95% CI: 0.09, 0.78, I2 = 20.66%), and mortality by 82% (RR: 0.18, 95% CI: 0.03, 0.98, I2 = 00.00%). No significant changes in CRP, D‐dimmer, and ferritin were found between groups. Quercetin was found to significantly reduce LDH levels and decrease the risk of hospital and ICU admission and mortality in patients with COVID‐19 infection.
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spelling doaj.art-a01818ab2a5b4ff4bd27730335d859ba2023-12-16T07:01:19ZengWileyFood Science & Nutrition2048-71772023-12-0111127504751410.1002/fsn3.3715The effect of quercetin supplementation on clinical outcomes in COVID‐19 patients: A systematic review and meta‐analysisSomayeh Ziaei0Malek Alimohammadi‐Kamalabadi1Motahareh Hasani2Mahsa Malekahmadi3Emma Persad4Javad Heshmati5ICU Department, Emam Reza Hospital Kermanshah University of Medical Sciences Kermanshah IranDepartment of Cellular‐Molecular Nutrition, School of Nutritional Sciences and Dietetics Tehran University of Medical Sciences Tehran IranDepartment of Nutritional Sciences, School of Health Golestan University of Medical Sciences Gorgan IranDepartment of Cellular‐Molecular Nutrition, School of Nutritional Sciences and Dietetics Tehran University of Medical Sciences Tehran IranDepartment for Evidence‐based Medicine and Evaluation Danube University Krems Krems AustriaSonghor Healthcare Center Kermanshah University of Medical Sciences Kermanshah IranAbstract Coronavirus disease (COVID‐19) affects both the respiratory system and the body as a whole. Natural molecules, such as flavonoid quercetin, as potential treatment methods to help patients combat COVID‐19. The aim of this systematic review and meta‐analysis is to give a comprehensive overview of the impact of quercetin supplementation on inflammatory factors, hospital admission, and mortality of patients with COVID‐19. The search has been conducted on PubMed, Scopus, Web of Science, EMBASE, and the Cochrane Library using relevant keywords until August 25, 2023. We included randomized controlled trials (RCTs) comparing COVID‐19 patients who received quercetin supplementation versus controls. We included five studies summarizing the evidence in 544 patients. Meta‐analysis showed that quercetin administration significantly reduced LDH activity (standard mean difference (SMD): −0.42, 95% CI: −0.82, −0.02, I2 = 48.86%), decreased the risk of hospital admission by 70% (RR: 0.30, 95% CI: 0.14, 0.62, I2 = 00.00%), ICU admission by 73% (RR: 0.27, 95% CI: 0.09, 0.78, I2 = 20.66%), and mortality by 82% (RR: 0.18, 95% CI: 0.03, 0.98, I2 = 00.00%). No significant changes in CRP, D‐dimmer, and ferritin were found between groups. Quercetin was found to significantly reduce LDH levels and decrease the risk of hospital and ICU admission and mortality in patients with COVID‐19 infection.https://doi.org/10.1002/fsn3.3715COVID‐19CRPD‐dimmerferritinLDHmortality
spellingShingle Somayeh Ziaei
Malek Alimohammadi‐Kamalabadi
Motahareh Hasani
Mahsa Malekahmadi
Emma Persad
Javad Heshmati
The effect of quercetin supplementation on clinical outcomes in COVID‐19 patients: A systematic review and meta‐analysis
Food Science & Nutrition
COVID‐19
CRP
D‐dimmer
ferritin
LDH
mortality
title The effect of quercetin supplementation on clinical outcomes in COVID‐19 patients: A systematic review and meta‐analysis
title_full The effect of quercetin supplementation on clinical outcomes in COVID‐19 patients: A systematic review and meta‐analysis
title_fullStr The effect of quercetin supplementation on clinical outcomes in COVID‐19 patients: A systematic review and meta‐analysis
title_full_unstemmed The effect of quercetin supplementation on clinical outcomes in COVID‐19 patients: A systematic review and meta‐analysis
title_short The effect of quercetin supplementation on clinical outcomes in COVID‐19 patients: A systematic review and meta‐analysis
title_sort effect of quercetin supplementation on clinical outcomes in covid 19 patients a systematic review and meta analysis
topic COVID‐19
CRP
D‐dimmer
ferritin
LDH
mortality
url https://doi.org/10.1002/fsn3.3715
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