Giving testosterone to men with type 2 diabetes who are deficient in the hormone improved their insulin sensitivity, researchers reported here.

In a randomized, controlled trial, type 2 diabetic men with hypogonadotropic hypogonadism had a significant 25% increase in insulin sensitivity after taking testosterone injections for 6 months, compared with no significant changes for men in the placebo group (P=0.01), Paresh Dandona, MD, PhD, of the University of Buffalo, and colleagues reported at the Endocrine Society meeting here. Read more.