title: [Features of chromosome segregation in unfertilized human oocytes].
abstract: Mechanisms of abnormal chromosomal segregation in female meiosis and factors exerting influence on unfertilized human oocytes have been analysed in vitro. The differences in results of cytological studies on the rate of aneuploidy have been reviewed. The advanced maternal age is primarily associated with disturbances in oocyte meiosis.
authors.affiliation: D. O. Ott Institute of Obstetrics and Gynecology RAMN, St. Petersburg.
authors.forename: O A
authors.initials: OA
authors.lastname: Vorob'eva
authors.forename: M V
authors.initials: MV
authors.lastname: Bogomolova
mesh_terms: D000782:Aneuploidy; D002877:Chromosomes, Human; D005260:Female; D006801:Humans; D008423:Maternal Age; D008540:Meiosis; D009865:Oocytes / Q000648:ultrastructure*