Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/71708
Title: In vitro screening antiviral activity of Thai medicinal plants against porcine reproductive and respiratory syndrome virus
Authors: Chaiwat Arjin
Kidsadagon Pringproa
Surat Hongsibsong
Warintorn Ruksiriwanich
Mintra Seel-Audom
Supamit Mekchay
Korawan Sringarm
Authors: Chaiwat Arjin
Kidsadagon Pringproa
Surat Hongsibsong
Warintorn Ruksiriwanich
Mintra Seel-Audom
Supamit Mekchay
Korawan Sringarm
Keywords: Veterinary
Issue Date: 30-Mar-2020
Abstract: © 2020 The Author(s). Background: Porcine reproductive and respiratory syndrome (PRRS) caused by PRRS virus (PRRSV) results in economic losses in the swine industry globally. Several studies have investigated the use of plant extracts in the prevention and control of PRRS outbreaks. Thai medicinal plants may be useful for treating PRRSV infection in pigs. Therefore, we investigated the in vitro anti-PRRSV and antioxidant properties of seven Thai medicinal plants: Caesalpinia sappan Linn., Garcinia mangostana Linn., Houttuynia cordata, Perilla frutescens, Clinacanthus nutans, Phyllanthus emblica, and Tiliacora triandra. Results: Using antiviral screening, we observed that T. triandra extract strongly inhibited PRRSV infectivity in MARC-145 cells [virus titer 3.5 median tissue culture infective dose (TCID50)/ml (log10)] at 24 h post-infection, whereas C. sappan extract strongly inhibited PRRSV replication [virus titer 2.5 TCID50/ml (log10)] at 72 h post-infection. C. sappan extract had the highest total phenolic content [220.52 mM gallic acid equivalent/g] and lowest half-maximal inhibitory concentration [1.17 mg/ml in 2,2-diphenyl-1-picrylhydrazyl and 2.58 mg/ml in 2,2-azino-bis (3-ethylbenzothiazo-line-6-sulfonic acid) diammonium salt]. Conclusion: T. triandra extract could inhibit PRRSV infectivity, whereas C. sappan extract was the most effective in inhibiting PRRSV replication in MARC-145 cells. This study elucidates the antiviral activities of Thai medicinal plant extracts in vivo. The results promise that Thai medicinal plant extracts, particularly T. triandra and C. sappan extracts, can be developed into pharmaceutical drugs for the prevention of PRRS in pigs.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85082791988&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/71708
ISSN: 17466148
Appears in Collections:CMUL: Journal Articles

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