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Review
. 2021 Feb;35(2):864-876.
doi: 10.1002/ptr.6873. Epub 2020 Sep 27.

Natural products for COVID-19 prevention and treatment regarding to previous coronavirus infections and novel studies

Motahareh Boozari  1 , Hossein Hosseinzadeh  2   3
Affiliations
Review

Natural products for COVID-19 prevention and treatment regarding to previous coronavirus infections and novel studies

Motahareh Boozari et al. Phytother Res. 2021 Feb.

Abstract

Recently, the novel life-threatening coronavirus infection (COVID-19) was reported at the end of 2019 in Wuhan, China, and spread throughout the world in little time. The effective antiviral activities of natural products have been proved in different studies. In this review, regarding the effective herbal treatments on other coronavirus infections, promising natural products for COVID-19 treatment are suggested. An extensive search in Google Scholar, Science Direct, PubMed, ISI, and Scopus was done with search words include coronavirus, COVID-19, SARS, MERS, natural product, herb, plant, and extract. The consumption of herbal medicine such as Allium sativum, Camellia sinensis, Zingiber officinale, Nigella sativa, Echinacea spp. Hypericum perforatum, and Glycyrrhiza glabra, Scutellaria baicalensis can improve the immune response. It seems that different types of terpenoids have promising effects in viral replication inhibition and could be introduced for future studies. Additionally, some alkaloid structures such as homoharringtonine, lycorine, and emetine have strong anti-coronavirus effects. Natural products can inhibit different coronavirus targets such as S protein (emodin, baicalin) and viral enzymes replication such as 3CLpro (Iguesterin), PLpro (Cryptotanshinone), helicase (Silvestrol), and RdRp (Sotetsuflavone). Based on previous studies, natural products can be introduced as preventive and therapeutic agents in the fight against coronavirus.

Keywords: 3CLpro inhibitors; ACE2; COVID-19; PLpro inhibitors; coronavirus; natural products.

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References

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