We evaluated the ability of the Bothrops antivenom produced by the Butantan Institute to neutralize the lethal, hemorrhagic, myotoxic and phospholipase A activities induced by B. brazili venom from Rondônia state, Brazil, and verified its cross-reactivity against this venom. This antivenom neutralized the cited biological activities. It also showed cross-reactivity with this venom, and preferentially recognized components with a relative mass above 66 kDa. Our results suggest that Brazilian Bothrops antivenom can be used in B. brazili envenomation in this region.
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http://dx.doi.org/10.1016/j.toxicon.2022.107010 | DOI Listing |
Toxicon
March 2025
Faculdade de Ciências Farmacêuticas, Universidade Federal do Amazonas, Manaus, Brazil; Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil; Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas, Manaus, Brazil. Electronic address:
Backgound: In Brazil, the highest incidences of snakebite envenomation (SBE) occur in the Amazon region, caused mostly by Bothrops atrox. Among the effects of envenomation, cardiac alterations are not a frequent outcome but are highly linked to severe cases.
Objective: The present study investigated the serum profile of cardiac injury markers (fatty acid binding protein 3 - H-FABP3, N-terminal type B natriuretic peptide - NTproBNP, creatine kinase-MB - CPK-MB, and troponin I) following Bothrops SBEs and their association with venom-induced coagulopathy.
Curr Drug Targets
February 2025
Departament of Pharmacy, Laboratory of Pharmaceutical Biotechnology (BioTecFarm), Federal University of Paraiba (UFPB), Campus I- Castelo Branco III. 58051-900, João Pessoa-PB, Brazil.
Introduction: Despite their hazardous nature, snake venoms hold immense potential for the development of novel therapies. This summary delves into the key aspects of snake venom research, focusing on their significance as targets for neutralization, their utility as novel drugs, the application of in silico studies, and future prospects with nanotechnology. Significance of Snake Venom: Snake venom harbors a rich diversity of toxic proteins with a wide range of biological activities.
View Article and Find Full Text PDFToxins (Basel)
February 2025
Instituto de Bioquímica Médica Leopoldo de Meis (IBqM) Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-599, Brazil.
High hydrostatic pressure (HHP) has been used for viral inactivation to facilitate vaccine development when immunogenicity is maintained or even increased. In this work, we used HHP to inactivate venom. Our protocol promotes the loss of or decrease in many biological activities in venom.
View Article and Find Full Text PDFRev Peru Med Exp Salud Publica
January 2025
Universidad Nacional de la Amazonia Peruana, Loreto, Perú.
Capillary leak syndrome is a unique complication characterized by extravasation of liquids in the interstitial space due to protein loss caused by snakebite envenoming. We describe the case of a 12-year-old boy from the district of Napo in the city of Iquitos in the Peruvian Amazon, who had edema and increased face volume due to the bite of a snake of the Bothrops genus in the lateral aspect of the right leg; he was the hospitalized and diagnosed with severe ophidism complicated with face edema. The patient received eight vials of antivenin, antibiotics and analgesics.
View Article and Find Full Text PDFLancet Reg Health Am
February 2025
Tropical Biome and Immunopathology CNRS UMR-9017, Inserm U 1019, Université de Guyane, Cayenne, French Guiana.
Background: Snakebite (SB) envenoming is an acute emergency requiring early care delivery. However, sometimes, patients can take several hours before receiving antivenom (AV). We conducted this study to assess the effectiveness of antivenom in the recovery of clotting parameters in patients consulting tardily after SB envenoming in French Guiana.
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