Effects of habu (Trimeresurus flavoviridis) venom on isolated and perfused hearts of rats

Sakanashi, M.; Takeo, S.; Kato, T.; Noguchi, K.; Nakasone, J.; Aniya, Y.

Toxicon Official Journal of the International Society on Toxinology 24(10): 1019-1022

1986


ISSN/ISBN: 0041-0101
PMID: 3824402
DOI: 10.1016/0041-0101(86)90009-7
Accession: 039969590

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Abstract
Crude habu venom decreased coronary perfusion pressure and produced a small increase in myocardial tension of isolated and perfused rat hearts. Indomethacin infusion depressed the fall in perfusion pressure caused by the venom, without affecting the increase in tension. Heated venom decreased perfusion pressure, but did not increase myocardial tension. These results suggest that crude habu venom has coronary vasodilating and positive inotropic effects, possibly through actions of a phospholipase A2 and a heat-labile component, respectively.