Medicinal plant-derived compounds as potential phytotherapy forCOVID-19: Future perspectives
Journal of Pharmacognosy and Phytotherapy(2021)
Abstract
Currently, the human being faces a contagious virus called SARS-CoV-2 with a high transmission ability, infection, and a relatively high mortality rate, especially for the elderly. All research interest is directed to finding a drug or vaccine to save millions of people’s lives; some have succeeded and applied now in some countries. Medicinal plants represent a green treasure that renders plentiful primary and secondary metabolites characterized by potent biological activities. Interestingly, the secondary metabolites, alkaloids, flavonoids, tannins, and terpenoids, own a broad antiviral history. The plant antiviral capabilities may be due to inhibition of viral attachment to/penetration of the host cell; inhibition of the virus replication; suppressing RNA replication; downregulation of viral proteins translation; interfering with virus non-structural/structural protein; downregulation of virus-induced pro-inflammatory/inflammatory signaling pathways in the host cell, and antioxidant activity thus abating the virus-induced oxidative stress effect. Presently, as we are trapped with a surly virus, there are attempts to exploit the power of nature. Therefore, this review’s main objective is to refer to some medicinal plants or their derivatives that limit the virus’s virulence or alleviate the symptoms associated with this virus. Key words: SARS-CoV-2, medicinal plants, natural extracts, flavonoids, alkaloids, antiviral.
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Key words
plant-derived
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