title: [Trophoblast in villi of the early human chorion according to the data of optico-structural analysis and electron microscopy].
abstract: Presence of nuclei with tetraploid content of DNA in syncytiotrophoblast of the early chorion has been demonstrated. Before 8 weeks of pregnancy their content makes 31% and then it drops up to 26%. At this age certain severe changes are revealed in texture characteristics of the nucleus--asymmetry and kurtosis of chromatin distribution. Possible pathways of ultrastructural rearrangements in epithelium of the early chorion are discussed.
authors.forename: V D
authors.initials: VD
authors.lastname: Novikov
authors.forename: S V
authors.initials: SV
authors.lastname: Mashak
authors.forename: N T
authors.initials: NT
authors.lastname: Iasakova
authors.forename: L L
authors.initials: LL
authors.lastname: Beliaev
mesh_terms: D002824:Chorionic Villi / Q000033:anatomy & histology* / Q000648:ultrastructure; D005260:Female; D006801:Humans; D008854:Microscopy, Electron; D011247:Pregnancy; D014327:Trophoblasts / Q000033:anatomy & histology* / Q000648:ultrastructure
vernacular_title: Trofoblast vorsin rannego khoriona cheloveka po dannym optiko-strukturnogo mashinnogo analiza i élektronnoĭ mikroskopii.