When grown in the presence of other cells usually found around oocytes, the oocyte-like cells developed structures similar to mature egg cells but with an abnormal chromosome structure.

The growth and the onset of meiotic maturation of the mammalian oocyte are controlled by bidirectional interactions between the oocyte and the surrounding somatic cells. Junctional complexes and ...

An interesting anomaly to this process is the human egg cell, or oocyte. While these cells do ultimately accrue damage, they stay remarkably well preserved for decades; sometimes remaining dormant ...

Oocytes are immature egg cells that develop in almost all female mammals before birth. The propagation of future generations depends on this finite reserve of cells surviving for many years ...

Scientists have isolated and purified rare, human germline stem cells that can be propagated over long periods of time in vitro and differentiate into follicles containing oocytes when ...

Ultrastructural studies of centipede and other myriapod ovaries reveal direct soma-germline contact across the basement ...

Scientists have been trying to understand what enables such longevity, because oocytes—like other nondividing, long-lasting cells—have a high risk of accumulating misfolded proteins.

In their study, reported in the journal Nature Aging, the group sequenced mouse oocyte cell RNA to learn more about how spermidine impacts reproduction in aging mice. Andreas Zimmermann and Frank ...

Researchers have developed an innovative technique to rejuvenate aged oocytes, or immature egg cells, to boost their quality, paving the way for improved outcomes for in-vitro fertilization.

This reserve of eggs is selected from a much larger pool of millions of precursor cells, or oocytes, that form during fetal life. So there is a substantial amount of quality control during the process ...