Nigella sativa L. as a Potential Phytotherapy for COVID-19: A Mini-Review of In-silico Studies
Coronaviruses are responsible for several human diseases such as the pandemic infectious disease 2019 (COVID-19) which is caused by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). So far, there is no effective approved antiviral agent for SARS-CoV-2. Natural products, such as Nigella sativa (NS), provide a wealth of known antiviral compounds. This mini literature review was aimed to explore any published or preprint in-silico data on the binding affinity of NS compounds to SARS-CoV-2 targets. At least eight in-silico studies have shown that some compounds of NS, including Nigelledine, α- Hederin, Hederagenin, Thymohydroquinone, Thymoquinone, had high to moderate affinity with SARS-CoV-2 enzymes and proteins. These compounds might potentially inhibit SARS-CoV-2 replication and attachment to host cell receptors. These preliminary data proposes NS as a potential phytotherapy candidate in clinical trials for COVID-19.