RESUMO
We studied the effect of 2-h inhalation of argon-oxygen mixture (Ar 70%/O2 30%) after photochemically induced stroke and on days 2 and 3 after stroke modeling on the severity of neurological deficit and brain damage (by MRI data) in Wistar rats. Neurological deficit was assessed within 14 days using the limb placement test. MRI and histological study of the brain with an assessment of the size of damage were performed on day 14 after ischemia. Significant differences were obtained in limb placement scores on days 3, 7, and 14, as well as in the volume of ischemic focus by MRI in comparison with the control (ischemia+N2 70%/O2 30%). Inhalation of argon-oxygen mixture for 2 h a day over 3 days after photoinduced stroke decreased the volume of brain damage by 2 times and reduced the severity of neurological deficit.
Assuntos
Lesões Encefálicas , Isquemia Encefálica , AVC Isquêmico , Fármacos Neuroprotetores , Acidente Vascular Cerebral , Ratos , Animais , Fármacos Neuroprotetores/farmacologia , Ratos Sprague-Dawley , Ratos Wistar , Argônio/farmacologia , Argônio/uso terapêutico , Acidente Vascular Cerebral/tratamento farmacológico , Acidente Vascular Cerebral/patologia , Isquemia Encefálica/tratamento farmacológico , Isquemia Encefálica/patologia , Isquemia , OxigênioRESUMO
Modern wool textile factories are characterized by hygienically inadequate labour conditions which include exceeding dust and microbe contamination of the air in the working zone and poor microclimate conditions in some shops. Basing on the studies of the air contamination sources, the contributors propose recommendations for health-related improvement of the air conditions.