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Relying on ex vivo and in vitro platelet anti-aggregation assays, a tail bleeding time assay, and an anti-thrombotic assay, we have purified the fraction of venom from Agkistrodon halys pallas which, in all of these assays, is the most active. There were two major steps in the purification: gel filtration chromatography on Sephadex G-100, and ion exchange chromatography on DEAE Sephadex A-50. Sequencing...
This article reports the effect of low-level laser therapy (LLLT) on the edema formation and leukocyte influx caused by Bothrops jararacussu snake venom as an alternative treatment for Bothrops snakebites. The inflammatory reaction was induced by injection of 0.6mg/kg of B. jararacussu venom, in gastrocnemius muscle. Cell influx and edema were evaluated at 3 or 24h after venom injection. Mice were...
Walterinnesia aegyptia is a monotypic elapid snake inhabiting in Africa and Mideast. Although its envenoming is known to cause rapid deaths and paralysis, structural data of its venom proteins are rather limited. Using gel filtration and reverse-phase HPLC, phospholipases A 2 (PLAs), three-fingered toxins (3FTxs), and Kunitz-type protease inhibitors (KIns) were purified from the venom of a...
Snake venoms are known to be an extensive source of bioactive peptides. Bradykinin-potentiating peptides (BPPs) are inhibitors of the angiotensin-converting enzyme that have already been identified in the venom of many snake, scorpion, spider and batrachian species. Their most characteristic structural features are an invariable N-terminal pyroglutamate residue (pGlu or Z) and two consecutive proline...
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