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Hypovitaminosis D is associated with erectile dysfunction in type 2 diabetes
Nicola Caretta1, Saula Vigili de Kreutzenberg2, Umberto Valente3
1Department of Medicine, Section of Endocrinology and Centre for Human Reproduction Pathology, University of Padova, Via Giustiniani, 2, 35128, Padua, Italy. ncaretta@gmail.com.
Endocrine
|January 14, 2016
Summary
Vitamin D deficiency is linked to erectile dysfunction (ED) in men with type 2 diabetes. Low vitamin D levels correlate with poorer erectile function and increased vascular disease markers.
Area of Science:
- Endocrinology
- Urology
- Vascular Medicine
Background:
- Diabetes mellitus is a significant risk factor for erectile dysfunction (ED), primarily due to vascular complications and endothelial dysfunction.
- Emerging research suggests a correlation between vitamin D deficiency and ED risk factors.
- Vitamin D's role in vascular health and hormonal balance warrants investigation in diabetic populations.
Purpose of the Study:
- To investigate the association between 25-hydroxyvitamin D [25(OH)D] levels, erectile dysfunction (ED), and vascular parameters in men with type 2 diabetes mellitus (T2DM).
- To determine if 25(OH)D deficiency is an independent predictor of ED in T2DM patients.
Main Methods:
- An observational study involving 92 men with T2DM.
- Data collection included medical history, the International Index of Erectile Function (IIEF-5) questionnaire, physical examination, biochemical/hormonal blood tests, and penile echo-color Doppler ultrasonography.
- Patients were categorized based on 25(OH)D levels (<25 nmol/l vs. >50 nmol/l).
Main Results:
- T2DM patients with lower 25(OH)D levels (<25 nmol/l) exhibited significantly higher penile intima-media thickness (IMT), waist circumference, and glucose concentrations.
- Lower 25(OH)D levels were associated with lower IIEF-5 scores, reduced testosterone concentrations, and decreased cavernous peak systolic velocity (PSV).
- 25(OH)D levels showed direct correlations with IIEF-5, testosterone, and PSV, and inverse correlations with waist circumference, HbA1c, triglycerides, and penile IMT. 25(OH)D deficiency was an independent predictor of ED.
Conclusions:
- A significant association exists between 25(OH)D deficiency and erectile dysfunction in men with T2DM.
- This link may be mediated by vitamin D's influence on cardiovascular risk factors, testosterone levels, and endothelial function.
- Maintaining adequate vitamin D levels could be important for managing ED in diabetic men.
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