The Ethiopian endemic snake of the species Bitis parviocula, recognized for its colorful patterns, might be more interesting as we look deeper into the venom activity. We assayed the effects of venoms from the most widespread venomous African Bitis arietens and closely related species Bitis parviocula using The Hen’s Egg Test—Chorioallantoic membrane test (HET-CAM) and Chicken embryotoxicity screening test (CHEST), acetylcholinesterase (AChE) analysis, cytotoxicity assay performed on cell lines and protein analysis of selected venoms. Our results indicated that B. parviocula venom contains vasoactive compounds that have a direct effect on blood vessels. The AChE analysis showed significant ability inhibiting AChE activity in embryonic tissue. Cytotoxicity observed on A549 ATCC® CCL-185™ cells indicates the possible presence of cytotoxic agents in B. parviocula venom. We proved previously described differences in the composition of venom obtained from B. arietans and B. parviocula by using electrophoresis and total protein concentration. Based on similarities in vasoactive effects observed after administration of venoms onto a chicken chorioallantoic membrane, we suggest that venom from B. arietans and B. parviocula might share certain venom proteins responsible for haemotoxicity. The main active components of B. parviocula venom are unknown. Our results suggest that it might be worth performing proteomic analysis of B. parviocula venom as it might contain medically valuable compounds.
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