The consequences of some often-used methods of producing unconsciousness in experimental animals were investigated by comparing the concentrations of nine glycolytic intermediates and eight related compounds in the liver of normal, well-fed rats, anaesthetized with ether, halothane, urethan, evipan, nembutal, luminal, or killed by neck fracture, with the physiological values, obtained from unan...

SCUBA diving has several risks associated with it from breathing air under pressure--nitrogen narcosis, barotrauma and decompression sickness (the bends). Trimix SCUBA diving involves regulating mixtures of nitrogen, oxygen and helium in an attempt to overcome the risks of narcosis and decompression sickness during deep dives, but introduces other potential hazards such as hypoxia and oxygen to...

Severe narcosis occurred in a patient with hypoparathyroidism given therapeutic doses of codeine phosphate.

Previous neurochemical studies performed in rats have revealed a decrease of striatal dopamine and glutamate induced by inert gas narcosis. We sought to establish the hypothetical role of glutamate and its main receptor, the N-methyl-d-aspartate (NMDA) receptor, in this syndrome. We aimed to counteract the nitrogen narcosis-induced glutamate and dopamine decreases by stimulating the NMDA recept...

Very few of the more than sixty naturally-occurring isoquinoline alkaloids have been screened for pharmacological activity, although certain members of this class have known hallucinogenic and cardiovascular activity. Recently the suggestion that biosynthetic catecholamine-derived tetrahydroisoquinolines are involved in the etiology of alcoholism has stimulated research into their activity. Bot...

Pacu ( Piaractus mesopotamicus ) is one of the most important fish farmed species in Brazil due to its hardy, fast growing, omnivorous feeding behavior, and good consumers acceptance. However, studies on effect different slaughtering procedures quality frozen pacu fillets have not been carried out. Therefore, this study aimed evaluate electrical stunning, CO 2 narcosis, or water/ice immersion (...