Anticoagulant effect of myotoxic phospholipase�2 isolated from the venom of the snake Bothrops asper
نویسندگان
چکیده
Resumen: La fosfolipasa A2 miotóxica del veneno de Bothrops asper (terciopelo) prolonga el tiempo de recalcificación de plasmas de cinco especies de mamíferos. La fosfolipasa A2 hidroliza los fosfolípidos del plasma, en tanto que. su acción inhibitoria es revertida cuando se adicionan fosfolípidos plaquetarios. Estas dos observaciones sugieren que la acción anticoagulante se debe a una alteración de los fosfolípidos plasmá ticos necesarios para la coagulación. Tanto la actividad enzimática como la anticoagulante se mantuvieron aún después de calentamiento a 950C durante 10 mino Pese a su acción anticoagulante in vitro, la fosfolipa sa A2 no prolonga el tiempo de coagulación luego de inoculación intravenosa en ratones.
منابع مشابه
Isolation and characterization of a myotoxic phospholipase A2 from the venom of the arboreal snake Bothriechis (Bothrops) schlegelii from Costa Rica.
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