More women are choosing to freeze their eggs, but fewer are returning to use them, according to a study published online Aug. 29 in the American Journal of Obstetrics & Gynecology. Mabel B. Lee, M.D., ...

Since the effects of gender-affirming therapy on fertility are unknown, multiple medical societies endorse the preservation of fertility in persons who identify as transgender. 1-3 In transgender male ...

Oogenesis is the process by which an ovarian germ cell becomes a female gamete, an egg. A functional egg is capable of undergoing fertilization and giving rise to a developing embryo, and it should ...

Ovarian stimulation for IVF in women aged over 35 years may be leading to chromosome abnormalities resulting in pregnancy loss and birth defects such as Down syndrome, say members of a polar body ...

"For the first time, scientists have shown that DNA from ordinary body cells can be placed into an egg, activated, and made ...

In a new study published in the journal Nature, researchers in Japan report that activating just eight genes for producing gene-controlling proteins is enough to convert mouse stem cells directly into ...

This is a preview. Log in through your library . Abstract Four principal stages of oocyte growth are recognized among teleosts. During gonadotropin-independent primary growth, multiple nucleoli form ...

Lyle P. Brinton and James H. Oliver, Jr. The developmental morphology and cellular fine structure of oogonial-oocyte development in Dermacentor andersoni Stiles unfed nymphs and unfed newly molted, ...

The fertilization of an egg by a sperm is central to human reproduction. A complex biological process transforms immature oocytes into ones that can be fertilized. The process begins in the female ...

The process of Oocyte Cryopreservation starts with a transvaginal ultrasound and a series of blood tests to assess ovarian health and function. With IVF and egg-freezing techniques, women no longer ...