Egg cells are by far the largest cells produced by most organisms. In humans, they are several times larger than a typical body cell and about 10,000 times larger than sperm cells. There's a reason ...

Communication between oocytes and granulosa cells is essential for oocyte formation, dormancy, reawakening, and maturation. Researchers have demonstrated that a protein complex called the exocyst ...

A team of reproductive biologists at Nanjing Agricultural University has found that spermidine, a polyamine metabolite, helps oocytes clear away damaged mitochondria in mice, thereby improving ...

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...

Human oocytes can last for up to 50 years—and a newly discovered metabolic pathway is key to this longevity. By Lauren J. Young Published Jul 22, 2022 2:45 PM EDT Add Popular Science (opens in a new ...

The accumulation of misfolded or damaged proteins in long-lived, non-dividing cells like neurons are linked to neurodegenerative diseases like Alzheimer's. A study now finds that the build-up of these ...

The accurate distribution of chromosomes in an oocyte is essential for the correct transmission of genetic information to the next generation. Now, researchers from Kyushu University have demonstrated ...

Of all the available means of fertility preservation, 1 oocyte cryopreservation by means of vitrification (very rapid freezing) provides the highest yield, not only for women with benign diseases or ...

With oocyte donation, any woman with a healthy uterus, regardless of the condition of her own eggs, can potentially bear a child with her partner. The oocyte donor may be anonymous and obtained ...