Journal of venom research · 2011
Hypericum brasiliense plant extract neutralizes some biological effects of Bothrops jararaca snake venom.
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Assafim Mariane, de Coriolano Eduardo Coriolano, Benedito Sérgio Eufrázio, Fernandes Caio Pinho, Lobo Jonathas Felipe Revoredo, Sanchez Eladio Florez, Rocha Leandro Machado, Fuly André Lopes
Аннотация
Alternative treatments for snake bite are currently being extensively studied, and plant metabolites are considered good candidates for such purpose. Here, the ability of a crude ethanolic extract of Hypericum brasiliense plant in neutralizing Bothrops jararaca snake venom was investigated by in vitro (coagulation, hemolysis or proteolysis) and in vivo (hemorrhage, lethality and edema) biological assays. We describe for the first time the ability of H. brasiliense extracts to inhibit some pharmacological effects of a Brazilian snake venom. Inhibitory assays were performed by incubating B. jararaca venom with H. brasiliense extracts for 30min at room temperature before the assays were performed. The results showed that H. brasiliense extracts impaired lethality, edema, hemorrhage, hemolysis, proteolysis as well as fibrinogen or plasma clotting induced by B. jararaca venom. This indicates that H. brasiliense extracts can provide promising agents to treat B. jararaca envenomation.