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1.
Polimery/Polymers ; 67(7-8):355-374, 2022.
Article in English | Scopus | ID: covidwho-2090963

ABSTRACT

Because of the present pandemic researchers are seeking for phytocandidates that can inhibit or stop SARS-CoV-2. The main protease (Mpro) of SARS-CoV-2 and spike glycoprotein (S) are both suppressed by bioactive compounds found in plants that work by docking them together. The Mpro proteins 6LU7 (complex with an inhibitor N3) and 5C3N (space group C2221) were employed in docking research. PyRx and AutoDock Vina software were used as docking engine. 22 identified phytoconstituents were selected from IMPPAT, a manually curated database, on the basis of their antiviral effects. Docking studies showed that phytoconstituents β-amyrin (-8.4 kcal/mol), withaferin A (-8.3 kcal/mol), oleanolic acid (-7.8 kcal/mol), and patentiflorin A (-8.1 kcal/mol) had the best results against 5C3N Mpro protein whereas kuwanon L (-7.1 kcal/mol), β-amyrin (-6.9 kcal/mol), oleanolic acid (-6.8 kcal/mol), cucurbitacin D (-6.5 kcal/mol), and quercetin (-6.5 kcal/mol) against 6LU7 Mpro protein. All the compounds were examined for their ADMET characteristics using SwissDock. Present research reports that the phytoconstituents along with docking score will be helpful for future drug development against Covid-19. © 2022 Industrial Chemistry Research Institute. All rights reserved.

2.
Current Nutrition & Food Science ; 18(2):132-143, 2022.
Article in English | Web of Science | ID: covidwho-1896609

ABSTRACT

The immune system involves both active and passive immunization. The antibodies are developed against the antigens during active immunization and are permanently stored. But, in the case of passive immunization, the antibodies are exposed to the same antigens in every person who is already infected. In order to enhance the immune systems i.e. innate and adaptive immune responses, herbal plants are used as an immune booster. Some of the herbal plants have been proven clinically to enhance immunity that includes Morniga oleifera (Drumstick), Azadirachta indica (Neem), Ocimum sanctum (Tulsi), Withania somnifera (Aswagandha), Zingiber officinale (Ginger), Allium sativum (Garlic), Curcuma longa (Turmeric), Emblica officinalis (Amla) etc. Compared to synthetic drugs, herbal drugs have fewer side effects and stimulate the immune system to defend against various foreign pathogens. Even though herbal medicines are usually considered as safe and effective therapy, it is clinically proven that if a drug is effective, it would have some side effects. But, sometimes, the antioxidant property of herbal medicines is helpful in reducing the toxicities produced by any toxic substances or any drugs. This review aims to encourage the study of various herbal constituents and their role in the treatment of different types of viral infections.

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