RESUMO
Effect of preliminary intraperitoneal injection on the state of the glutathione system and lipid peroxidation intensity in the lungs of rats subjected to NO2 has been studient. This compound is shown to decrease significantly all lipid peroxidation processes and to inhibit completely glutathion oxidation. These effects are supposed to be a result not only of antioxidant properties of enomelanin, but also of its ability to promote a decrease in the activity of glutathione-depending enzymes subjected to NO2.
Assuntos
Glutationa/metabolismo , Peroxidação de Lipídeos/efeitos dos fármacos , Pulmão/metabolismo , Melaninas/farmacologia , Óxido Nítrico/farmacologia , Animais , Injeções Intraperitoneais , Masculino , Melaninas/administração & dosagem , Ratos , Ratos WistarRESUMO
Prophylactic injection of enomelanine has been studied for its effect on hemic hypoxia and on different parts of breathing system. The enomelanine was shown to be effective for decreasing the level of carboxyhemoglobin and for protection from succinate dehydrogenase and cytochromoxidase. The authors think that these effects of enomelanine are conditioned not only by its anti-hypoxia abilities, but also by the capacity to activate the alternative protective mechanisms of the cell.