Unani perspective on COVID-19 and the possible role of Tiryaq Wabai in its management: a review

Science has uncovered much about SARS-CoV-2 and made extraordinary and unprecedented progress on the development of COVID-19 vaccines, but there is still great uncertainty as the pandemic continues to evolve. We are simply moving to a new phase of the pandemic. Tiryaq Wabai, is on the polyherbal medicine used for centuries by Unani doctors as preventative medicine in epidemics. It consists of three ingredients: Sibr (Aloe barbadensis), Zafran (Crocus sativus), and Mur-Makki (Commiphora myrrh). All the three ingredients of Tiryaq Wabai have various pharmacological activities like immunomodulatory, antitussive, expectorant, and antiviral activity which provide a strong basis for its prophylactic use for covid-19 infection. Further, research on this important prophylactic Unani formulation Tiryaq Wabai in Covid-19 is the need of the hour.

Police vs doctors: Harassment of Covid "heroes", by Covid "heroes"?

Violence against medical professionals and destruction of hospital property by frustrated patients and their relatives occur frequently in India (1) and in other countries (2, 3). However, harassment of healthcare workers by the police has, so far, not been an issue in the Indian healthcare system. Now, cases of harassment of medical professionals by the police have emerged during the Covid-19 pandemic. Ironically, both doctors and police personnel have been considered "frontline heroes" against the pandemic in India. We present some cases of such attacks.

Structure-Based Identification of Natural Products as SARS-CoV-2 Mpro Antagonist from Echinacea angustifolia Using Computational Approaches.

Coronavirus disease-19 (COVID-19) pandemic, caused by the novel SARS-CoV-2 virus, continues to be a global threat. The number of cases and deaths will remain escalating due to the lack of effective therapeutic agents. Several studies have established the importance of the viral main protease (Mpro) in the replication of SARS-CoV-2 which makes it an attractive target for antiviral drug development, including pharmaceutical repurposing and other medicinal chemistry approaches. Identification of natural products with considerable inhibitory potential against SARS-CoV-2 could be beneficial as a rapid and potent alternative with drug-likeness by comparison to de novo antiviral drug discovery approaches. Thereof, we carried out the structure-based screening of natural products from Echinacea-angustifolia, commonly used to prevent cold and other microbial respiratory infections, targeting SARS-CoV-2 Mpro. Four natural products namely, Echinacoside, Quercetagetin 7-glucoside, Levan N, Inulin from chicory, and 1,3-Dicaffeoylquinic acid, revealed significant docking energy (>-10 kcal/mol) in the SARS-CoV-2 Mpro catalytic pocket via substantial intermolecular contacts formation against co-crystallized ligand (<-4 kcal/mol). Furthermore, the docked poses of SARS-CoV-2 Mpro with selected natural products showed conformational stability through molecular dynamics. Exploring the end-point net binding energy exhibited substantial contribution of Coulomb and van der Waals interactions to the stability of respective docked conformations. These results advocated the natural products from Echinacea angustifolia for further experimental studies with an elevated probability to discover the potent SARS-CoV-2 Mpro antagonist with higher affinity and drug-likeness.