Diabetes Mellitus and male reproductive function: where we stand?

Diabetes mellitus (DM) is a metabolic disorder caused by absolute (Type 1 diabetes) or relative (Type 2 diabe-tes) deficiency of insulin and is associated with altera-tions in carbohydrate, lipid and protein metabolism. The disease has been closely related with a wide range of long-term systemic complications and co-morbidi-ties, such as renal failure or hypertension [2]. Thus, the study of DM implications in human health is a chal-lenge to experts of any field of research.