The karyosphere, aka the karyosome, is a meiosis-specific structure that represents a “knot”
of condensed chromosomes joined together in a limited volume of the oocyte nucleus. The …

В настоящем обзоре описан процесс фолликулогенеза от этапа формирования
примордиального фолликула вокруг ооцита на стадии диплотены профазы I мейоза до …

In vitro maturation of human oocytes at the germinal vesicle (GV) stage could offer an
alternative in several cases of female infertility. It however rests on a better knowledge of the …

In Platyhelminthes, totipotent stem cells (neoblasts) are supposed to be the only dividing
cells. They are responsible for the renewal of all cell types during development, growth, and …

During the growth phase of the bovine oocyte transcripts, polypeptides and ribosomes are
accumulated in the oocyte to drive and sustain future meiotic maturation, fertilization, and …

The nuclear structure of insect oocyte is described with reference to interchromatin granule
clusters and Cajal bodies. It is suggested that the intranuclear structure is determined by the …

The karyosphere and nuclear bodies (NBs) were studied in Tenebrio molitor oocytes using
immunoelectron cytochemistry. During early diplotene (previtellogenic stage), oocyte …

Ultrastructural and immunomorphological characteristics of the developing karyosphere and
extrachromosomal nuclear bodies (NBs) in Tenebrio molitor oocytes are presented. Three …

The intranuclear distribution of the transcription factor Oct‐4, which is specifically expressed
in totipotent mice stem and germ line cells, was studied in mouse oocytes using immunogold …

In oocyte nuclei of the scorpionfly, Panorpa communis, we have recently defined a
population of nuclear bodies (NBs) that contain some components of Cajal bodies (CBs). In …