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Hydrophilic interaction chromatography coupled to high resolution mass spectrometry (HILIC-LC-HRMS): An approach to study natural peptides in Viperidae snake venom.
J Chromatogr A
January 2025
Laboratório Bioquímica e Biofísica, Instituto Butantan, São Paulo, Av. Vital Brasil 1500, São Paulo, SP 05503-900, Brazil. Electronic address:
Although proteins in snake venoms have been extensively studied and characterized, low-mass molecules remain relatively unexplored, mainly due to their low abundance, secondary role in envenomation, and some analytical technique limitations. However, these small molecules can provide new important data related to venom toxins' molecular structure, functions, and evolutionary relationships. This research aimed to characterize molecules below 10 kDa in the venoms of snakes from the Viperidae families (Bothrops, Agkistrodon, and Bitis) and compare two chromatographic approaches: reverse-phase chromatography (RP), a classic technique, and hydrophilic interaction liquid chromatography (HILIC), an alternative technique, both coupled with high-resolution mass spectrometry (HRMS).
View Article and Find Full Text PDFVenoms and Extracellular Vesicles: A New Frontier in Venom Biology.
Toxins (Basel)
January 2025
Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Brownsville, TX 78520, USA.
Extracellular vesicles (EVs) are nanoparticle-sized vesicles secreted by nearly all cell types under normal physiological conditions. In toxicological research, EVs have emerged as a crucial link between public health and multi-omics approaches, offering insights into cellular responses to disease-causing injury agents such as environmental and biological toxins, contaminants, and drugs. Notably, EVs present a unique opportunity to deepen our understanding of the pathophysiology of envenomation by natural toxins.
View Article and Find Full Text PDFFirst Look at the Venoms of Two Snakes: Differences in Yield, Proteomic Profiles, and Immunorecognition by Commercial Antivenoms.
Toxins (Basel)
January 2025
Herpetological Research Center, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
Chinese coral snakes () are highly neglected regarding their venom profiles and harm to humans, which impedes our ability to deeply understand their biological properties and explore their medicinal potential. In this study, we performed a comparative analysis to reveal the venom profiles of two Chinese coral snakes in terms of their venom yields, proteomic profiles, and immunorecognition by commercial antivenoms. The results showed that expels more venom (lyophilized venom mass) than but possesses a similar solid venom content.
View Article and Find Full Text PDFProspect of using ethnobotanicals to manage snakebites in a cost-effective manner: validating Senegalia mellifera extract's inhibitory potential on Naja nigricincta nigricincta (zebra cobra) venom.
Trans R Soc Trop Med Hyg
January 2025
Department of Biology, Chemistry and Physics, Faculty of Health, Natural Resources and Applied Sciences, Namibia University of Science and Technology, Private Bag 13388, 13 Jackson Kaujeua Street Windhoek, Windhoek, Namibia.
Background: Despite Naja nigricincta nigricincta being responsible for most snake envenomation in remote Namibian regions, an effective intervention against its venom remains undiscovered. This study aimed to scientifically validate Namibian folklore claims about Senegalia mellifera extract's efficacy against snake envenomation.
Methods: In vitro assays were conducted to assess the inhibitory potential of S.
Jararaca GPIb-binding protein causes thrombocytopenia during Bothrops jararaca envenomation.
Sci Rep
December 2024
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
Inoculation of Bothrops jararaca snake venom (BjV) induces thrombocytopenia in humans and various animal species. Although several BjV toxins acting on hemostasis have been well characterized in vitro, it is not known which one is responsible for inducing thrombocytopenia in vivo. In previous studies, we showed that BjV incubated with metalloproteinase or serine proteinase inhibitors and/or anti-botrocetin antibodies still induced thrombocytopenia in rats and mice.
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