So extraordinary are oocytes and their cytoplasm that replacing an oocyte's DNA-containing nucleus with that of a body cell—a process called somatic cell nuclear transfer—can produce a new ...

After induction of oocyte maturation with recombinant human chorionic gonadotropin, five oocytes were retrieved while the patient was under conscious sedation; four mature oocytes were cryopreserved.

Oocyte retrieval outcomes were similar between patients with a BMI of at least 45 kg/m2 and patients with BMI of 40 to 44.9 kg/m2.

Oocyte cryopreservation is a suitable fertility preservation option for women who are not partnered, have ethical objections to cryopreserving embryos or wish to have complete reproductive autonomy.

During ovulation, the ovary releases an egg, or oocyte. It’s not uncommon for a woman in her prime conception years to experience an anovulatory cycle occasionally. In fact, you may have ...

More information: Yu Zhang et al, Polyamine metabolite spermidine rejuvenates oocyte quality by enhancing mitophagy during female reproductive aging, Nature Aging (2023). DOI: 10.1038/s43587-023 ...

Egg freezing, also known as oocyte cryopreservation or vitrification, is the process of taking one or more eggs out of your ovaries and storing them at very low temperatures for use in the future.

A cast of so-called 'nurse cells' surrounds and supports the growing fruit fly egg during development, supplying the egg -- or 'oocyte' -- with all the nutrients and molecules it needs to thrive ...

“Oocyte [ovary cell] collections in Najin have yielded only few eggs and none of them could be fertilized successfully to become an embryo. “Weighing this outcome with potential ...