Genetics

Do ovaries continue to produce eggs during adulthood?

A compelling new genetic study tracing the origins of immature egg cells, or 'oocytes', from the embryonic period throughout adulthood adds new information to a growing controversy. The notion of a "biological clock" in women ...

Oncology & Cancer

Researchers map the genome of testicular cancer

Testicular germ cell cancer, a disease that is rare but growing in incidence in men in the United States, is considered to be among the most curable of solid tumors. Now researchers from the University of North Carolina Lineberger ...

Oncology & Cancer

Sperm development linked to testicular cancer

Testicular cancer is the most common type of cancer to affect men between the ages of 15 and 49, and around 95% of these cases are caused by testicular germ cell tumors. Although testicular germ cell tumors typically manifest ...

Medical research

Preschool within lymphatic vessels

Not only infants crawl. ETH researchers have shown that so-called dendritic cells, important cells of the immune system, use a similar mode of movement more often than previously assumed. The scientists used intravital microscopy ...

Medical research

Manufacturing spermatogonia stem cells

For species that rely on sexual reproduction, including mice and men, offspring can only happen if sperm from the male fertilize eggs from the female. Even artificial fertilization techniques depend on donors for both of ...

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