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Showing 1 to 5 of 5 for “"Physalia"”.
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Vascular Effects of PHYSALIA PHYSALIS Venom
… of this study was to identify the effects of Physalia physalis (Portuguese Man-of-War) venom on vascular smooth muscle and elucidate its mode of action. We utilized the in vivo approach by functionally isolating the skeletal muscle vasculature of the dog's hind leg, and the in vitro approach …
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Molecular Mechanisms of Physalia Physalis Venom Modulation of Cardiac and Vascular Functions
<p>Portuguese man-of-war <em>(Physalia physalis)</em>venom has profound effects on the cardiovascular system of man and animals. The venom produces vascular relaxation in norepinephrine precontracted, intact rabbit femoral arterial rings by stimulating vasodilatory prostaglandin synthesis in the …
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Mast Cell Histamine Release Induced by Portuguese Man-of-War (Physalia) Venom
… histamine releasing effects of cnidarian (e.g. Physalia, Actinia, Cyanea), toxic extracts. While the anaphylactic effect, discovered by Richet and Portier, has been extended by numerous studies to provide the foundation of our current knowledge of allergic atopy and anaphylaxis, the study of the …
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Effects of Portuguese Man-of-War (PHYSALIA PHYSALIS) Venom on Isolated Rabbit Atria
<p>The cardiac effects of Portuguese man-of-war venom were studied using isolated atria from rabbits. Venom added (7.1 µg protein/ml) to the bath solution stimulates heart rate 120% (P < 0.01) and increases contraction amplitude 308% (P < 0.001). Both effects are dependent on bath concentrations of …
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Factors influencing the occurrence of stinging jellyfish (Physalia spp.) at New Zealand beaches
Individuals of the cnidarian genus Physalia are a common sight at New Zealand beaches and are the primary cause of jellyfish stings to beachgoers each year. The identity of the species and the environmental factors that determine its presence are unknown. Lack of knowledge of many marine species is …