Chemical characterization, docking studies, anti-arthritic activity and acute oral toxicity of Convolvulus arvensis L. leaves

• Published in: Asian Pacific Journal of Tropical Biomedicine
• Main Authors: Uzma Saleem, Shingraf Zaib, Sana Khalid, Fareeha Anwar, Muhammad Furqan Akhtar, Bashir Ahmad
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wolters Kluwer Medknow Publications 2020
• Subjects: convolvulus arvensis; arthritis; phytoconstituents; molecular docking; Arctic medicine. Tropical medicine; RC955-962; Biology (General); QH301-705.5; Arctic
• Online Access: https://doi.org/10.4103/2221-1691.290869; https://doaj.org/article/067b22e353b048c080df2d973ea3a104

Objective: To evaluate acute oral toxicity and anti-arthritic activity of the methanolic extract of Convolvulus arvensis L. leaves. Methods: Safety was assessed by acute oral toxicity (OECD 425) study. Anti-arthritic activity was explored by in vitro (inhibition of protein denaturation) and in vivo (Complete Freund’s adjuvant-induced arthritis and carrageenan-induced inflammation) methods. Antioxidant potential was determined by assessing ferric reducing power, DPPH inhibition, and H2O2 scavenging assays. Furthermore, molecular docking was done to check interactions between the plant constituents and cyclooxygenases (COX-1 and COX-2). Quercetin, gallic acid, caffeic acid, syringic acid, sinapic acid, and vanillic acid were quantified by HPLC and eight compounds were identified by GC-MS analysis. Results: No mortality and abnormality in biochemical parameters were observed in the toxicity study. Histological analysis of vital organs also supported these biochemical results. The in vitro and in vivo studies showed that the methanolic extract of leaves of Convolvulus arvensis exhibited dose-dependent anti-arthritic and anti-oxidant potential. Molecular docking showed better interactions of plant compounds with cyclooxygenases as compared to standard ibuprofen. Conclusions: Convolvulus arvensis exhibits strong anti-arthritic activity, justifying the traditional use of the herbal drug.