RESUMO
The experiments on irradiated dogs with a drained pectoral lymph duct revealed an early accumulation of radiotoxins (diene conjugates and malonic dialdehyde) in the lymph and blood plasmas and; simultaneously, a lowering of water-soluble antioxidants. The prophylactic application of cystamine improved the drain-detoxifying function of the lymphatic system, lowered the level of radiotoxins, and aided in the antioxidant properties of lymph and blood plasmas.
Assuntos
Cistamina/uso terapêutico , Peroxidação de Lipídeos/efeitos dos fármacos , Peroxidação de Lipídeos/efeitos da radiação , Linfa/efeitos dos fármacos , Linfa/efeitos da radiação , Protetores contra Radiação/uso terapêutico , Animais , Antioxidantes , Cães , Avaliação Pré-Clínica de Medicamentos , Raios gama , Linfa/metabolismo , Lesões Experimentais por Radiação/tratamento farmacológico , Lesões Experimentais por Radiação/metabolismo , Fatores de TempoRESUMO
The experiments on irradiated rats (LD90/30) and dogs (LD70/45) have shown that three administrations of aminodez or gluconeodez in a dose 10 mg/kg (3, 24 and 48 hours after the exposure) lowered radiotoxins levels (malonic dialdehyde, middle-molecular peptides), promoted stabilization of cellular membranes, enhanced activity of the body's detoxicating systems. In irradiated rats early detoxicating therapy with aminodez and gluconeodez raised survival by 40%.
Assuntos
Lesões Experimentais por Radiação/tratamento farmacológico , Toxemia/tratamento farmacológico , Animais , Cães , Feminino , Masculino , Camundongos , Ratos , Fatores de Tempo , Toxemia/etiologiaRESUMO
In experiments with dogs exposed to 2.9 Gy (LD80/45) it was found that plasmapheresis treatment 4-6 h after irradiation reduce the severity of the radiation sickness clinical manifestations and post-radiation toxemia thus increasing the rate of animal survival up to 60%. Sham plasmapheresis included all the manipulations of plasmapheretic treatment except plasma substitution and had no detoxication effect and did not affect the irradiated animals survival. This is evidence for leading role of detoxication in the mechanisms of the therapeutic action of plasmapheresis in acute irradiation.
Assuntos
Plasmaferese , Lesões Experimentais por Radiação/terapia , Doença Aguda , Animais , Contagem de Células Sanguíneas/efeitos da radiação , Inibição de Migração Celular , Cães , Masculino , Malondialdeído/análise , Lesões Experimentais por Radiação/sangue , Irradiação Corporal TotalRESUMO
In experiments with dogs (fractionated y-irradiation, accumulated dose 1Gy) as well as in clinical testing of the group of men, recieved 0,25 Gy being engaged in the Chernobyl NPS disaster repairment, the positive influence of riboxin (purine nucleoside) course treatment on parameters of peripheral blood and non-specific resistance system has bee n shown.