Evolutionary pressure across male mammals to guarantee the procreation of their own offspring led to a rapid evolution of the testicle. Bioinformatic studies—conducted by an international team of ...

Spermatogenesis in the testicle is controlled by a finely coordinated, complex interplay of the activity of different genes -- also known as gene expression. Hitherto the understanding of these ...

The testicle, where sperm is produced, is a very complex tissue, explains Dr. Laurentino. This is why the "instructions" behind spermatogenesis remained unknown until now. The research group achieved ...

Your testicles are constantly producing sperm but a full regeneration cycle can take over 2 months. You produce sperm every day, but a full sperm regeneration cycle (spermatogenesis) takes a little ...

Mutations that abolish the activity of luteinizing hormone are rare; they have been reported in five men and one woman. 1–5 The phenotypes of these persons suggest that luteinizing hormone is not ...

Male infertility is on the rise, with significant declines in sperm quantity and quality occurring across the human population worldwide in the past two decades. The reason for this is poorly ...

A cross-college collaboration is opening new doors in the study of male infertility by breaking down a key step in sperm formation. Isolating the intricacies of meiotic sex chromosome inactivation ...