title: Influence of calcium on the action of Vipera ammodytes ammodytes snake venom on the myocardium.
abstract: V. ammodytes ammodytes snake venom produced irreversible block of the isolated, artificially stimulated rat right ventricle or isolated rat heart. This was the result of degenerative changes of the myocardium caused by the direct effect of toxic components of the venom. An excess of Ca2+ could temporarily restart the contractions.
mesh_terms: D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D006321:Heart / Q000187:drug effects*; D009200:Myocardial Contraction / Q000187:drug effects; D009206:Myocardium / Q000473:pathology; D051381:Rats; D014757:Viper Venoms / Q000494:pharmacology*
chemical_list: D014757:Viper Venoms; D002118:Calcium