Bco1, an enzyme that metabolizes beta carotene, may play a vital role in testosterone metabolism as well, according to a new study. An enzyme that converts the dietary carotenoid beta carotene into ...

Testosterone is the principle male sex hormones in mammals, birds and other vertebrates. The effects of the hormone are exerted in two main ways: Testosterone can activate the androgen receptor itself ...

An enzyme that converts the dietary carotenoid beta carotene into vitamin A in the body may also regulate testosterone levels and growth of the prostate, a new study found. Scientists at the ...

DALLAS - July 25, 2011 - UT Southwestern Medical Center researchers have narrowed the potential drug targets for advanced prostate cancer by demonstrating that late-stage tumors are driven by a ...

A single gene that regulates testosterone levels in a 'crazy' species of shore bird controls the development of three wildly different types of males, a new study has found. Ruffs have long fascinated ...