Researchers at the University of California, Irvine (UCI) and San Diego (UCSD), have developed a rapid new sorting technique for sperm using a laser trap that can separate stronger, faster sperm from slower sperm.

Scientists have discovered a new enzyme involved in degradation of proteins inside cells, process that helps eliminate or recycle proteins that are no longer needed. The unexpected discovery, made by Marcus Groettrup, chair of the immunology department at the University of Constance, and colleagues, overthrows idea that protein degradation is initiated by only one enzyme. Also, new enzyme is very highly expressed in the testis, which could provide a new understanding of male fertility.

A new study from Massachusetts General Hospital (MGH) researchers confirms that female mice that receive bone marrow transplantation after fertility-destroying chemotherapy can go on to have successful pregnancies throughout their normal reproductive life.

A recent study at Hamilton Health Sciences proves that sperm freezing and banking is an effective way to preserve fertility in adolescents and young adult (AYA) males with cancer.

Ovarian germ cell tumor patients treated with platinum-based chemotherapy and fertility-sparing surgery are likely to retain their menstrual function and reproductive ability, according to the largest and most comprehensive survey of survivors ever conducted.

The prognosis for systemic lupus erythematosus (SLE), an autoimmune disease that mainly affects women in their reproductive years, has improved recently, prompting a shift toward improving quality of life. For men with SLE, concerns have been raised about their future fertility.

Scientists who focus on the molecular signaling that underlies prostate cancer have discovered a compound that shows promise against a debilitating neurodegenerative condition known as Kennedy's disease, which is caused by a mutant gene. Currently there is no treatment for the inherited disorder, which resembles a slowly progressive form of Lou Gehrig's disease and affects only men.