Researchers Find Androgen Clues in Bird’s Mating Dance When a small Panamanian bird called a golden-collared manakin (Manacus vitellinus) goes courting, he performs an amazing acrobatic dance of rapid jumps and forceful wing snaps that pop like a firecracker to get a female’s attention. A team of researchers led by Barney A. Schlinger, Ph.D., of...
Androgens Have Sex-Specific Effects on Adipose Tissue It’s hard to figure out a hormone’s workings when it has opposite actions in men and women—such as androgens’ sex-specific metabolic effects. In men, androgen deficiency is linked to insulin resistance and obesity, and treatment with testosterone improves insulin sensitivity and reduces fat content. In women, the androgen...
