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Int. j. morphol ; 26(3): 557-562, Sept. 2008. ilus
Article in English | LILACS | ID: lil-556713

ABSTRACT

Whether bovine haemal nodes are involved in turnover of red blood cells has been a subject of some controversy In this study, fluorescent and conventional optical microscopy of conventionally or immunohistochemically stained node sections, together with transmission electron microscopy, showed the presence of erythrocyte precursors and megakaryocytes, and evidence of active involvement in the destruction and replacement of old or degenerate red cells and the platelets.


Si nodos linfáticos hemales bovinos están involucrados en la cantidad de volumen de glóbulos rojos ha sido objeto de cierta controversia. En este estudio, secciones de nodos linfáticos teñidas convencionalmente o inmunohistoquimicamente fueron analizadas con microscopía óptica fluorescente y convencional, junto con microscopio electrónico de transmisión, los que revelaron la presencia de precursores eritrocíticos y megacariocitos, y la evidencia de participación activa en la destrucción y sustitución de glóbulos rojos viejos o degenerados y plaquetas.


Subject(s)
Male , Adult , Cattle , Animals , Child , Cattle/anatomy & histology , Cattle/blood , Erythropoiesis/physiology , Erythropoiesis/genetics , Phagocytosis/physiology , Lymph Nodes/anatomy & histology , Lymph Nodes/growth & development , Lymph Nodes/ultrastructure , Microscopy, Electron, Transmission/veterinary , Microscopy, Fluorescence/veterinary
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