As with any other therapy, gene therapy can have adverse effects. However, unlike other treatments, a potential risk of gene therapy is genetic modification of the germ line by addition of new genetic ...

There is a system of tiny tubes in the testicles. These tubes, called the seminiferous tubules, house the germ cells that hormones — including testosterone, the male sex hormone — cause to turn into ...

The testis is composed of many tubes called "seminiferous tubules." The seminiferous tubule on the left is from a testis that was not treated with ultrasound while the tubule on the right is from a ...

Microscopy images showing normal seminiferous tubules in control testes with mature sperm (black arrow: left) but smaller empty seminiferous tubules in testes harboring a synaptonemal complex protein ...

Testosterone also stimulates sperm production in the seminiferous tubules and activates the prostate gland and seminal vesicles to produce their secretions. The release of testosterone is controlled ...