{"title":"Herbal-based tea bag reduces SARS-CoV-2 variant symptoms and infection duration via microRNA regulation: Clinical and mechanistic insights","authors":"","doi":"10.1016/j.jff.2024.106530","DOIUrl":null,"url":null,"abstract":"<div><h3>Objective</h3><div>MicroRNAs (RNA) are crucial in combating SARS-CoV-2; Some traditional Chinese herbal formulas (CHF) have shown potential against the original SARS-CoV-2 strain but no research explores CHF’s role in regulating microRNAs to combat the virus. This study aimed to investigate whether a herbal-based tea bag, Zheng-Yi-Fang (ZYF), from the modified combination of Jie-Geng-Tang (桔梗湯) and Huopu-Xia-Ling-Tang (藿朴夏苓湯) with <em>Houttuynia cordata</em> and <em>Scutellaria baicalensis</em>, can alleviate mild SARS-CoV-2 variant symptoms through microRNA regulation.</div></div><div><h3>Methods</h3><div>Patients with SARS-CoV-2 were recruited via telemedicine services at Taipei Veterans General Hospital from August to December 2022. Participants were randomly assigned to the ZYF group or a control group receiving standard Western medicines for symptom relief. Efficacy was evaluated by clinical symptom scores and the duration for positive antigen results to turn negative. Additional assays assessed spike protein fusion, viral main protease (M<sup>pro</sup>) activity, IL-6/IL-8 secretion, and miRNA induction.</div></div><div><h3>Results</h3><div>ZYF demonstrated efficacy in alleviating the symptoms of SARS-CoV-2 variants infection in the nasal, throat, upper respiratory areas, and gastrointestinal tract, while reducing the time required for positive antigen results to turn negative. ZYF inhibited spike protein fusion, regulated miRNA-98 to decrease ACE2 and TMPRSS2 expression, and inhibited M<sup>pro</sup> activity. ZYF also modulated miRNA-146a expression, reducing IL-6/IL-8 secretion.</div></div><div><h3>Conclusions</h3><div>Our findings suggest that the herbal-based tea bag offers a novel antiviral approach against SARS-CoV-2 variants by modulating miRNAs, reducing viral entry and IL-6/IL-8 secretion, and inhibiting M<sup>pro</sup> activity.</div></div>","PeriodicalId":360,"journal":{"name":"Journal of Functional Foods","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Functional Foods","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1756464624005322","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Objective
MicroRNAs (RNA) are crucial in combating SARS-CoV-2; Some traditional Chinese herbal formulas (CHF) have shown potential against the original SARS-CoV-2 strain but no research explores CHF’s role in regulating microRNAs to combat the virus. This study aimed to investigate whether a herbal-based tea bag, Zheng-Yi-Fang (ZYF), from the modified combination of Jie-Geng-Tang (桔梗湯) and Huopu-Xia-Ling-Tang (藿朴夏苓湯) with Houttuynia cordata and Scutellaria baicalensis, can alleviate mild SARS-CoV-2 variant symptoms through microRNA regulation.
Methods
Patients with SARS-CoV-2 were recruited via telemedicine services at Taipei Veterans General Hospital from August to December 2022. Participants were randomly assigned to the ZYF group or a control group receiving standard Western medicines for symptom relief. Efficacy was evaluated by clinical symptom scores and the duration for positive antigen results to turn negative. Additional assays assessed spike protein fusion, viral main protease (Mpro) activity, IL-6/IL-8 secretion, and miRNA induction.
Results
ZYF demonstrated efficacy in alleviating the symptoms of SARS-CoV-2 variants infection in the nasal, throat, upper respiratory areas, and gastrointestinal tract, while reducing the time required for positive antigen results to turn negative. ZYF inhibited spike protein fusion, regulated miRNA-98 to decrease ACE2 and TMPRSS2 expression, and inhibited Mpro activity. ZYF also modulated miRNA-146a expression, reducing IL-6/IL-8 secretion.
Conclusions
Our findings suggest that the herbal-based tea bag offers a novel antiviral approach against SARS-CoV-2 variants by modulating miRNAs, reducing viral entry and IL-6/IL-8 secretion, and inhibiting Mpro activity.
期刊介绍：
Journal of Functional Foods continues with the same aims and scope, editorial team, submission system and rigorous peer review. We give authors the possibility to publish their top-quality papers in a well-established leading journal in the food and nutrition fields. The Journal will keep its rigorous criteria to screen high impact research addressing relevant scientific topics and performed by sound methodologies.
The Journal of Functional Foods aims to bring together the results of fundamental and applied research into healthy foods and biologically active food ingredients.
The Journal is centered in the specific area at the boundaries among food technology, nutrition and health welcoming papers having a good interdisciplinary approach. The Journal will cover the fields of plant bioactives; dietary fibre, probiotics; functional lipids; bioactive peptides; vitamins, minerals and botanicals and other dietary supplements. Nutritional and technological aspects related to the development of functional foods and beverages are of core interest to the journal. Experimental works dealing with food digestion, bioavailability of food bioactives and on the mechanisms by which foods and their components are able to modulate physiological parameters connected with disease prevention are of particular interest as well as those dealing with personalized nutrition and nutritional needs in pathological subjects.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
