Low testosterone levels predicted a greater risk of acute myocardial infarction in Swedish men with type 2 diabetes, researchers found. Higher total testosterone levels were associated with a 25% reduced risk of acute MI in that group. But no such relationship was seen in men without diabetes or in women regardless of diabetes status. The researchers reported, "In the future, we probably could use serum testosterone for the assessment of cardiovascular risk in men with type 2 diabetes," noting that the findings should be validated in other studies before drawing a definitive conclusion. Daka B, et al "Low concentrations of testosterone predict acute myocardial infarction in men with type 2 diabetes mellitus" EASD 2013; Abstract 11.