Twenty percent of people who try to conceive experience fertility problems and up to half of these may be due to impaired spermatogenesis. In the May 28 Proceedings of the National Academy of Sciences ...

If mules were Freudians they would be kicking mad. They always have parents, rarely have offspring. Because they are the hybrid, infertile offspring of a mare and a jackass, race suicide is as ...

LNP is delivered to both germ cells and Sertoli cells. (Image: PNAS, CC BY) Infertility affects one in six couples globally, with male factor infertility accounting for almost half of these cases. NOA ...