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The identification of novel endogenous and exogenous molecules acting in the complex mechanism of regulating the vascular tonus has always been of great interest. The discovery of bradykinin (1949) and the bradykinin-potentiating peptides (1965) had a pivotal influence in the field, respectively, in understanding cardiovascular pathophysiology and in the development of captopril, the first active-site...
We have shown that the venom of the South American rattlesnake Crotalus durissus terrificus induces a long-lasting antinociceptive effect mediated by activation of κ- and δ-opioid receptors. Despite being mediated by opioid receptors, prolonged treatment with the crotalid venom does not cause the development of peripheral tolerance or abstinence symptoms upon withdrawal. In the present study, we have...
Snake venom is known to contain an abundance of enzyme isoforms, and various disorders associated with envenomation have been ascribed partially to their diversified functions. Crude venom of Bothrops jararaca was subjected to conventional two-dimensional SDS-PAGE, followed by immunoblot analysis using an antiserum raised against KN-BJ 2, a serine proteinase previously isolated from this venom. A...
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