BUFFALO, N.Y. -- Obesity, a condition linked to heart disease and diabetes, now appears to be associated with another health problem, but one that affects men only -- low testosterone levels.
Results of a study published online ahead of print in the journal Diabetes Care, conducted by University at Buffalo endocrinologists, showed that 40 percent of obese participants involved in the Hypogonadism in Males (HIM) study had lower-than-normal testosterone readings.
The percentage rose to 50 percent among obese men with diabetes. Results also revealed that as body mass index (BMI) -- a relationship of weightto-height -- increased, testosterone levels fell.
"The effect of diabetes on lowering testosterone levels was similar to that of a weight gain of approximately 20 pounds," says Sandeep Dhindsa, MD, an endocrinology specialist in the UB Department of Medicine and first author on the study.
"In view of the fact that almost one-third of the U.S. is obese, these observations have profound pathophysiological, clinical, epidemiological and public health implications."
This is the largest analysis of the association between obesity and low testosterone, and the first to compare prevalence of low testosterone with obesity and diabetes separately and together. The study shows that obesity and diabetes may exert independent influences on testosterone concentrations.
"We published a report in 2004 on the high prevalence of low testosterone levels in men with type 2 diabetes, and multiple studies all over the world have confirmed the association of low testosterone with diabetes," Dhindsa notes.
"The Endocrine Society now recommends that all men with type 2 diabetes should have their testosterone levels measured. Our new study shows that obese men also have a very high prevalence of low testosterone levels, so physicians should consider screening obese non-diabetic men, as well, for low testosterone."<
|Contact: Lois Baker|
University at Buffalo