[Extrusion of nucleolus-like bodies from the nuclei of human oocytes].
A morphological and cytochemical analysis of nucleolus-like bodies extruded in antenatal human development phase from the nucleus into the oocyte cytoplasm has been carried out, and the quantitative dynamics of this phenomenon is evaluated. The nucleolus-like bodies are Feulgen-negative, pyroninophilic, and measuring 4-5 micron in diameter. These bodies migrate from the nuclei of oogonia and oocytes at all the meiotic prophase 1 stages, from the preleptotene chromosome condensation stage on. The frequency of extrusion of nucleolus-like bodies at the diplotene stage is lower than that at the dictyatene stage.
D002453:Cell Cycle; D002455:Cell Division; D002466:Cell Nucleolus / Q000378:metabolism / Q000648:ultrastructure*; D002467:Cell Nucleus / Q000378:metabolism / Q000648:ultrastructure*; D005260:Female; D005865:Gestational Age; D006651:Histocytochemistry; D006801:Humans; D009865:Oocytes / Q000378:metabolism / Q000648:ultrastructure*; D010053:Ovary / Q000196:embryology; D010063:Ovum / Q000648:ultrastructure*
Ekstruziia iadryshkopodobnykh telets iz iader ootsitov cheloveka.