Antiviral Effects of Some Flavonoids on SARS-CoV-2

Öz

Covid-19 disease caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is a global epidemic that affects millions of lives. To date, there is no definitive cure for the disease and global vaccination efforts with newly produced vaccines will take years to complete. In silico studies have suggested that different flavonoids play an antiviral role against SARS-CoV-2. In this study, based on in silico findings, we examined the in vitro effects of four promising flavonoids, Hesperidin, Oleuropein, Epigallocatechin gallate (EGCG), and Myricetin. First, we extracted these flavonoids from natural plant sources and purified by using liquid chromatography (LC). Next, we analysed the cell toxicity and antiviral activity of these four flavonoids at different concentrations against SARS-CoV-2. Our results using the SARS-CoV-2 infected Vero E6 cell model were found to contradict previous in silico findings, and these flavonoids were found to have no antiviral effects in vitro. Studies investigating the antiviral activity of flavonoids on SARS-CoV-2 should be directed to those other than oleuropein, hesperidin, EGCG, and Myricetin.

Anahtar Kelimeler

• Covid-19
• EGCG
• Hesperidin
• Myricetin
• Oleuropein

Kaynakça

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