Effect of Portuguese man-of-war venom on isolated vascular segments.

Hemolysis and acute renal failure following a Portuguese man-of-war sting.

Portuguese man-of-war stings occur frequently at North American beaches. Most produce only local pain and pruritus. A 4-year-old girl who developed a hemolytic reaction and acute renal failure following a severe sting is described. As neither sequela has been previously reported, it is speculated that either the large dose of venom or chance intravenous inoculation may have been responsible. Ev...

An outbreak of Portuguese man-of-war (Physalia physalis - Linnaeus, 1758) envenoming in Southeastern Brazil.

INTRODUCTION Portuguese man-of-war, Physalia physalis (Linnaeus, 1758), are cnidarians capable of discharging intracellular organelles filled with venom, resulting in severe envenomation in humans. METHODS We report the clinical and therapeutic aspects of 331 accidents involving Portuguese man-of-war in an outbreak on the coast of the State of São Paulo, Brazil. RESULTS The clinical manifes...

Quinapril Attenuates the Effect of Long-Term L-NAME Administration on the Vascular Reactivity of Diabetic Rats

Angiotensin-converting enzyme (ACE) inhibitors including quinapril could exert a protective effect on cardiovascular system through endothelial system in normoglycemic and diabetic rats. The present experimental work was designed to study the vascular reactivity of aortic ring segments isolated from streptozotocin (STZ)-diabetic rats treated for 4 weeks with nitro-L-arginine-methyl ester (L-NAM...

Modulatory effect of purified peptide isolated from Mesobouthus epeus Scorpion Venom on Astrocyte Cell line (1321N1)

A case of severe stinging caused by venomous marine animal, "Portuguese man of war" (Physalia species) in all probability.

There are about 150 million jellyfish stings every year. "Portuguese man of war" is responsible for substantial proportion of stings worldwide. The biggest risk from a jellyfish stings may come from incorrect management. A 42-year-old woman was severely stung by venomous marine animal while bathing in waters of the Thai Gulf. It was most likely "Portuguese man of war". The patient didn't rememb...