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Erectile and endothelial dysfunction in Type II diabetes: a possible link
L De Angelis1, M A Marfella, M Siniscalchi
1Department of Geriatrics and Metabolic Diseases, Second University of Naples, Italy.
Diabetologia
|October 13, 2001
Summary
Erectile dysfunction in diabetic men is linked to endothelial dysfunction and nerve damage. Reduced nitric oxide activity may explain these issues in type 2 diabetes.
Area of Science:
- Endocrinology
- Urology
- Cardiovascular Medicine
Background:
- Erectile dysfunction (ED) is a common complication in men with Type II diabetes.
- Diabetic complications often involve vascular and neurological damage.
Purpose of the Study:
- To investigate the relationship between ED and endothelial function, coagulation, and neuropathy in Type II diabetic men.
- To identify predictors of ED in this population.
Main Methods:
- Compared 30 diabetic men with ED to 30 potent diabetic men.
- Assessed endothelial function (L-arginine test, thrombomodulin, cell adhesion molecules), coagulation (thrombin activation, fibrinolysis markers), and neuropathy (sensory testing, reflex tests, blood pressure monitoring).
Main Results:
- Diabetic men with ED had poorer glycemic control (HbA1c), impaired endothelial response to L-arginine, higher levels of thrombomodulin and cell adhesion molecules, increased coagulation activation, and more frequent neuropathy.
- Multivariate analysis identified HbA1c, L-arginine response, P-selectin, coagulation indices, and sensory testing as independent predictors of ED.
Conclusions:
- ED in diabetic men is associated with endothelial dysfunction and neuropathy.
- Reduced nitric oxide activity is a potential unifying mechanism for ED in diabetic patients.