title: Metabolic risk factors, endothelial dysfunction, and erectile dysfunction in men with diabetes.
abstract: BACKGROUND
  The prevalence of men with erectile dysfunction (ED) and concomitant diabetes mellitus continues to increase. ED, diabetes, hypertension, and dyslipidemia (components of the metabolic syndrome) are associated with endothelial dysfunction. ED has been reported to be a marker for cardiovascular arterial disease. Effective treatment of ED requires recognition of the condition and its associated comorbidities, including endothelial dysfunction.
  
  
  METHODS
  An electronic search of the literature was conducted to review information concerning the prevalence of ED, diabetes, metabolic syndrome, endothelial dysfunction, and treatment of ED.
  
  
  RESULTS
  Phosphodiesterase type 5 (PDE5) inhibitors are effective vasodilating agents with a predominant effect on penile vasculature and are therefore first-line treatment for men with ED. These agents have also been demonstrated to have a beneficial effect in other vascular beds. PDE5 inhibitors have not been shown to have an adverse effect on cardiovascular morbidity or mortality or on glycemic control in men with diabetes. In addition, no causal association has been established between nonarteritic ischemic optic neuropathy and PDE5 inhibitors.
  
  
  CONCLUSIONS
  PDE5 inhibitors have a beneficial effect on endothelial dysfunction and ED in men with diabetes and metabolic risk factors.
authors: Department of Internal Medicine, Mayo Clinic College of Medicine, Scottsdale, Arizona, AZ 85259, USA. palumbo.pasquale@mayo.edu
authors: Pasquale J
authors: PJ
authors: Palumbo
mesh_terms: D002986:Clinical Trials as Topic; D048909:Diabetes Complications / Q000188:drug therapy / Q000503:physiopathology*; D004730:Endothelium, Vascular / Q000503:physiopathology*; D006801:Humans; D018783:Impotence, Vasculogenic / Q000188:drug therapy / Q000209:etiology / Q000503:physiopathology*; D008297:Male; D024821:Metabolic Syndrome / Q000150:complications / Q000503:physiopathology*; D008954:Models, Biological; D010726:Phosphodiesterase Inhibitors / Q000009:adverse effects / Q000627:therapeutic use; D012307:Risk Factors
chemical_list: D010726:Phosphodiesterase Inhibitors