Protective effect of Euphorbia hirta and its components against snake venom induced lethality

Gopi, K. and Renu, K. and Vishwanath, B. S. and Jayaraman, G. (2015) Protective effect of Euphorbia hirta and its components against snake venom induced lethality. JOURNAL OF ETHNOPHARMACOLOGY, 165. pp. 180-190. ISSN 0378-8741

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Ethnopharmacological relevance: Despite the use of snake anti-venom therapy, herbal medicine is still in practice to treat snakebites. Euphorbia hirta is traditionally used as antidote for snakebites and also for numerous other ailments. However, the scientific evidence for its anti-snake venom property is still lacking. Materials and methods: Methanolic extract of E. hirta was evaluated for anti-venom activity under in vitro and ex vivo conditions. Histopathological changes in the vital organs of the mice were also monitored. UHPLC-SRM/MS was used to estimate the phenolic constituents whereas GC MS analysis was performed to analyze the volatile metabolites present. The major compound was further evaluated for its contribution to the overall inhibitory potential of the extract. Results: Methanolic extract of E. hirta completely inhibited the venom enzymes under in vitro and reduced the edema ratio. The extract increased the survival time (> 24 h) of mice which was further evidenced by histopathological analysis of vital organs. Phytochemical analysis revealed higher content of phenolic (144 mg/g extract) compounds in the extract. UHPLC-SRM/MS demonstrated that ellagic acid, gallic acid and quinic acid are the major phenolics whereas GC MS analysis revealed pyrogallol as the major constituent (60.07%) among the volatile components of the extract. It was also shown that pyrogallol has the ability to differentially inhibit venom protease but not phospholipase A2. Conclusion: The present study confirmed that E. hirta methanolic extract was able to completely inhibit Naja naja venom induced toxicity under in vitro as well as ex vivo conditions, thus providing scientific evidence to its traditional use. (C) 2015 Elsevier Ireland Ltd. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Snake venom; Naja naja; Neutralization; Euphorbia hirta; Phenolic compounds; Pyrogallol
Subjects: C Chemical Science > Biochemistry
Divisions: Department of > Biochemistry
Depositing User: Users 19 not found.
Date Deposited: 06 Jun 2019 10:09
Last Modified: 06 Jun 2019 10:09

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