Medicinal Plants with Inhibitory Properties Against Snake Venoms

Author(s): Andreimar M. Soares, Fabio K. Ticli, Silvana Marcussi, Miriam V. Lourenco, Ana H. Januario, Suely V. Sampaio, Jose R. Giglio, Bruno Lomonte, Paulo S. Pereira

Journal Name: Current Medicinal Chemistry

Volume 12 , Issue 22 , 2005

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Envenomations due to snake bites are commonly treated by parenteral administration of horse or sheep-derived polyclonal antivenoms aimed at the neutralization of toxins. However, despite the widespread success of this therapy, it is still important to search for different venom inhibitors, either synthetic or natural, that could complement or substitute for the action of antivenoms. Several plants have been utilized in folk medicine as antiophidian. However, only a few species have been scientifically investigated and still less had their active components isolated and characterized both structurally and functionally. This article presents a review of plants showing neutralizing properties against snake venoms which were assayed in research laboratories, correlating them with ethnopharmacological studies, as (i) the part of the plant used as antidote, (ii) its respective genus and family and (iii) inhibition of the main pharmacological, toxic and enzymatic activities of snake venoms and isolated toxins. Protective activity of many of these plants against the lethal action of snake venoms has been confirmed by biological assays. Compounds in all of them belong to chemical classes capable of interacting with macromolecular targets (enzymes or receptors). Popular culture can often help to guide scientific studies. In addition, biotechnological application of these inhibitors, as helpful alternative or supplemental treatments to serum therapy, and also as important models for synthesis of new drugs of medical interest, needs to be better oriented and scientifically explored.

Keywords: medicinal plants, antiophidian plants, anti-snake venom, toxin inhibitors, ethnopharmacological studies, structural approaches

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Article Details

Year: 2005
Page: [2625 - 2641]
Pages: 17
DOI: 10.2174/092986705774370655
Price: $65

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