Data from animal research is abundant demonstrating the adverse effects on reproduction of hormonally active compounds found in the environment.

Parathyroid cancers are hyperfunctional unlike other endocrine tumors that become less hormonally active when malignant.

Some men may have low levels of total testosterone but normal levels of so-called free testosterone, which is the hormonally active form.

It blocks the conversion of cholesterol to pregnenolone by inhibiting the enzyme P450scc and consequently decreases synthesis of all hormonally active steroids.

In fact, the panel seemed to take pains to refer to the compounds not as endocrine disrupters but rather as "hormonally active agents."

The group decided to call the chemicals "hormonally active agents," instead.

Chemically, it is a hormonally active levorotatory enantiomer of the racemic mixture norgestrel.

"Avoid products that contain hormonally active ingredients, including parabens."

They may be hormonally active, i.e. secrete testosterone.

Hormonally active non-transformed human ovarian cell culture from oophorectomy specimens: Methods of development and characterization.