The effect of several viper venoms on prothrombin Padua
- 1 September 1975
- journal article
- research article
- Published by Springer Nature in Annals of Hematology
- Vol. 31 (3) , 155-160
- https://doi.org/10.1007/bf01634838
Abstract
The effect of four viper venoms (Oxyuranus scutellatus, Notechis scutatus scutatus, Echis carinatus, Naja nigricollis) on prothrombin Padua has been studied. UsingOxyuranus scutellatus venom andNotechis scutatus scutatus venom, prothrombin activity resulted to be moderately decreased similarly to what observed with other one-stage and two-stage methods. On the contrary, usingEchis carinatus venom a normal level was obtained. No clotting was observed using theNaja nigricollis venom, regardless of the concentration used. The normal level of factor II obtained withEchis carinatus venom, as compared with the low levels obtained with the other venoms, suggests that it acts on a different site of the prothrombin molecule. Es wurde die Wirkung von Schlangengift (Oxyuranus scutellatus, Notechis scutatus scutatus, Echis carinatus, Naja nigricollis) auf Prothrombin Padua untersucht. Bei Verwendung vonOxyuranus scutellatus- undNotechis scutatus scutatus-Gift war die Prothrombin-Aktivität mäßig geringer, ähnlich der Einstufen- und Zweistufen-Methode. Bei Verwendung vonEchis carinatus-Gift war eine normale Prothrombin-Aktivität zu beobachten. Bei Verwendung vonNaja nigricollis-Gift wurde keine Gerinnung festgestellt, auch nicht bei Anwendung verschiedener Konzentrationen. Die mitEchis carinatus-Gift erhaltenen normalen Faktor-II-Werte lassen vermuten, daß im Gegensatz zu den niedrigen Werten der anderen verwendeten Gifte hier ein Angriff an anderer, Stelle der Prothrombin-Padua erfolgte.Keywords
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