title: [Ultrastructure of the lymph nodes of dogs under prolonged external gamma irradiation].
abstract: The purpose of the present investigation was electron microscopy study of lymph nodes of dogs exposed to chronic gamma-irradiation during 6 years (with a total dose of 125 rad/year). The exposure induced changes in the cell composition of the paracortical regions due to a decrease of the count of small lymphocytes and a predominant increase of young blast cells with an altered ultrastructure. Chronic gamma-irradiation led to an increase of the number of plasma cells and emergence of intermediate cell forms due to "plasmatization" of lymphocytes and reticular cells.
mesh_terms: D000818:Animals; D004285:Dogs; D004307:Dose-Response Relationship, Radiation; D005720:Gamma Rays; D008198:Lymph Nodes / Q000528:radiation effects* / Q000648:ultrastructure; D008214:Lymphocytes / Q000528:radiation effects; D008854:Microscopy, Electron; D010950:Plasma Cells / Q000528:radiation effects; D012156:Reticulocytes / Q000528:radiation effects; D013997:Time Factors
vernacular_title: Ul'trastruktura limfaticheskikh uzlov u sobak pri dlitel'nom vneshnem gamma-obluchenii.