[Polyphenols as promising bioactive compounds].

Polyphenols are diverse and widespread bioactive plant-based compounds. These compounds are found in various foods such as berries, fruits, vegetables, cereals, nuts, coffee, cacao, spices, seeds. They are divided into phenolic acids, stilbenes, flavonoids, lignans depending on their molecular structure.

Potential and Possible Therapeutic Effects of Melatonin on SARS-CoV-2 Infection.

The absence of effective drugs for COVID-19 prevention and treatment requires the search for new candidates among approved medicines. Fundamental studies and clinical observations allow us to approach an understanding of the mechanisms of damage and protection from exposure to SARS-CoV-2, to identify possible points of application for pharmacological interventions. In this review we presented studies on the anti-inflammatory, antioxidant, and immunotropic properties of melatonin.