Reticulocytes - ț̢
Immature ERYTHROCYTES. In humans, these are ERYTHROID CELLS that have just undergone extrusion of their CELL NUCLEUS. They still contain some organelles that gradually decrease in number as the cells mature. RIBOSOMES are last to disappear. Certain staining techniques cause components of the ribosomes to precipitate into characteristic "reticulum" (not the same as the ENDOPLASMIC RETICULUM), hence the name reticulocytes.
Synonyms : Reticulocyte
Reticulocytosis - ț̢
An increase in circulating RETICULOCYTES, which is among the simplest and most reliable signs of accelerated ERYTHROCYTE production. Reticulocytosis occurs during active BLOOD regeneration (stimulation of red bone marrow) and in certain types of ANEMIA, particularly CONGENITAL HEMOLYTIC ANEMIA.
Reticuloendotheliosis - ț̢
Hyperplasia of reticuloendothelial tissue, in any organ or tissue. A related concept is reticulosis which is an increase in reticuloendothelial elements.
Synonyms : Reticuloendothelioses, Reticuloses
Reticuloendotheliosis virus - ț̢
A species in the group RETICULOENDOTHELIOSIS VIRUSES, AVIAN of the genus GAMMARETROVIRUS that causes a chronic neoplastic and a more acute immunosuppressive disease in fowl.