A preliminary study by a Wuhan medical team found the first clinical evidence the novel coronavirus (COVID-19) infection could harm male gonad functions by significantly increasing sex hormones.

CHICAGO, July 23 (Xinhua) -- Researchers at the University of Illinois (UI) found in a study that the male-to-female sex-change for anemonefish occurs first in the fish's brain and only later involves ...

The gonad arises as a bipotential organ primordium. Expression of the Y-linked gene, Sry, in the bipotential gonad leads to the differentiation of Sertoli cells, which orchestrate testis development.