RESUMO
The bone marrow eosinophils of rats subjected to irradiation are capable of secreting a peroxidase system obtained by neutrophils and endotheliocytes. As a result, there appear heterophil granulocytes in the peripheral blood.
Assuntos
Medula Óssea/efeitos da radiação , Neutrófilos/efeitos da radiação , Animais , Medula Óssea/ultraestrutura , Raios gama , Contagem de Leucócitos , Neutrófilos/metabolismo , Neutrófilos/ultraestrutura , Peroxidases/metabolismo , Ratos , Ratos EndogâmicosRESUMO
The data on students' health according to the results of medical examinations form a basis for the organization of curative and health-promoting work at higher educational establishments and for the formulation of teaching and educational process at physical culture lessons.
Assuntos
Nível de Saúde , Morbidade , Serviços de Saúde para Estudantes/organização & administração , Estudantes , Adulto , Humanos , CazaquistãoAssuntos
Imunidade , Estudantes , Ensino , Adolescente , Adulto , Feminino , Humanos , Cazaquistão , MasculinoRESUMO
Prolonged influence of lead on the laboratory white rats was studied. The interchange of the "light" and "dark" endothelial cells in the bone marrow capillaries, pseudomyelination of mitochondria, periendothelial space extension, more dense or loose basement layer and clasmatosis in the adventitial cells of sinusoids were observed. These alterations were observed in both adult and newborn rats whose parents were influenced by lead before the coupling.
Assuntos
Medula Óssea/irrigação sanguínea , Intoxicação por Chumbo/patologia , Animais , Animais Recém-Nascidos , Medula Óssea/efeitos dos fármacos , Medula Óssea/ultraestrutura , Capilares/efeitos dos fármacos , Capilares/ultraestrutura , Doença Crônica , Endotélio/efeitos dos fármacos , Endotélio/ultraestrutura , Feminino , Masculino , Gravidez , Efeitos Tardios da Exposição Pré-Natal , Ratos , Ratos EndogâmicosRESUMO
Capillaries growing into cartilaginous epiphysis are protocapillaries, some of which are formed by "seamless" endothelium. Budding of endotheliocytes and presence of two nuclei in them are supposed to be the characters of incomplete (polyploidization) mitosis.
Assuntos
Cartilagem Articular/irrigação sanguínea , Epífises/irrigação sanguínea , Animais , Capilares/embriologia , Capilares/ultraestrutura , Cartilagem Articular/embriologia , Cartilagem Articular/ultraestrutura , Bovinos , Endotélio/irrigação sanguínea , Endotélio/embriologia , Endotélio/ultraestrutura , Epífises/embriologia , Epífises/ultraestrutura , Humanos , Microscopia Eletrônica , Ratos , Ratos EndogâmicosRESUMO
Blood test and bone marrow examination in experiments with albino rats weighing 100-110 g subjected to long-term lead influence (1% lead acetate per os) showed availability of reticulocytosis with thrombocytopenia (on the 62d day) and thrombocytosis on the 92d day of the experiment) in peripheral blood. Reduction of the bone marrow neutrophil index and leuko-erythroblastic ration due to an increase of an erythroblastic radicle was recorded in the bone marrow.
Assuntos
Células Sanguíneas/efeitos dos fármacos , Medula Óssea/efeitos dos fármacos , Poluentes Ambientais/toxicidade , Chumbo/toxicidade , Animais , Contagem de Células Sanguíneas , Feminino , Masculino , Ratos , Fatores de TempoRESUMO
Blood tests and examination of bone marrow in 2-3 week guinea pigs under conditions of a long-term phenol intoxication (0.5 mg/kg perorally) showed the presence of thrombocytopenia and eosinophilia in peripheral blood and a decrease of the erythroblast maturation index in bone marrow. In the experiment with animals treated with a high dose of phenol there was an evidence of thrombocytopenia accompanied by reticulocytosis and a nuclear shift of neutrophils to the right. Erythroblast maturation index in bone marrow increase (the immature forms are quite probable to be formed due to ineffective division).
Assuntos
Células Sanguíneas/efeitos dos fármacos , Medula Óssea/efeitos dos fármacos , Fenóis/intoxicação , Animais , Células da Medula Óssea , Relação Dose-Resposta a Droga , Cobaias , Hematopoese/efeitos dos fármacosRESUMO
Subcutaneous injection of hydrazine sulphate to animals decreases specific activity of some enzymes in homogenates. The content of total lipids in homogenates was decreased, while that in plasma membrane of the rat liver was increased. This induces substantial changes in the content of the neutral lipid fraction. A disturbance in hepatocyte desmosomes was observed.
Assuntos
Hidrazinas/farmacologia , Fígado/efeitos dos fármacos , Animais , Membrana Celular/efeitos dos fármacos , Membrana Celular/metabolismo , Membrana Celular/ultraestrutura , Cromatografia em Camada Fina , Ativação Enzimática/efeitos dos fármacos , Feminino , Fígado/metabolismo , Fígado/ultraestrutura , Masculino , Lipídeos de Membrana/análise , Microscopia Eletrônica , RatosAssuntos
Bronquite/diagnóstico , Minas de Carvão , Doenças Profissionais/diagnóstico , Adulto , Humanos , UcrâniaRESUMO
The high labelling index with the low mitotic activity of pericytes as well as an interdependent change in labelling indexs and labelling intensity in endothelial cells and pericytes for 72 hours of the experiment permit pericytes to be regarded as a proliferating cell reserve for the vessels proper and, probably, for the topographically adjacent histogeneses, myeloid and osseous.