Human egg cells, called oocytes, have to last a long time. They are created before birth, and if they are healthy, they stay viable for many years before they might be fertilized. New research has ...

Ultrasuperovulation is an advanced technique that significantly increases the number of oocytes, produced by female mice. However, existing ultrasuperovulation techniques have a low fertilization rate ...

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 ...

Credit: Getty Images Aging exerts detrimental physiologic, histologic, and functional effects on the endometrial extracellular matrix and on oocyte quality, impairing conception and implantation. With ...

“We now have information that health prior to conception is affecting the nutritional environment of the ovary, [that] it’s affecting the nutritional environment of the egg, and that signals are ...