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Updated: Jul 20, 2026

Assessing Endothelial Vasodilator Function with the Endo-PAT 2000

Assessing Endothelial Vasodilator Function with the Endo-PAT 2000

Published on: October 15, 2010

Diabetic erectile dysfunction--an indicator of generalised endothelial function per se?

D L Browne¹, D R Meeking, S Allard

¹Academic Department of Diabetes and Endocrinology, Queen Alexandra Hospital, Cosham, Portsmouth PO6 3LY, UK. duncan.browne@rcht.cornwall.nhs.uk

International Journal of Clinical Practice

|September 20, 2006

Summary

Erectile dysfunction (ED) in men with type 2 diabetes may not indicate widespread endothelial dysfunction. This study found similar blood flow responses in diabetic men with and without ED, suggesting ED is not linked to generalized vascular issues.

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Assessing Endothelial Vasodilator Function with the Endo-PAT 2000

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Published on: October 15, 2010

Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test

Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test

Published on: April 27, 2016

Area of Science:

Endocrinology
Cardiovascular Medicine
Urology

Background:

Erectile dysfunction (ED) is common in men with diabetes, affecting up to 70% of this population.
The underlying causes of ED in diabetes are not fully understood, with both neuronal and vascular factors implicated.
Generalized endothelial dysfunction is a known complication of diabetes, impacting various vascular beds.

Purpose of the Study:

To investigate whether ED serves as an early indicator of generalized endothelial dysfunction in diabetic patients.
To differentiate the contribution of endothelial dysfunction to ED in diabetes, independent of traditional cardiovascular risk factors.

Main Methods:

A cohort of diabetic men, including those with ED and potent controls, were recruited.
Participants were screened to exclude established cardiovascular risk factors.
Forearm blood flow (FBF) responses to vasodilatory agents (nitroprusside and acetylcholine) were measured using venous plethysmography.
Hemoglobin A1c (HbA1c) levels were compared between groups.

Main Results:

Diabetic men with ED had a higher HbA1c compared to potent diabetic men (8.35% vs. 7.03%, p = 0.003).
Both groups exhibited increased FBF in response to nitroprusside and acetylcholine infusions.
The area under the curve (AUC) for FBF responses did not significantly differ between the ED and non-ED groups (p = 0.16 and p = 0.17, respectively).

Conclusions:

Erectile dysfunction in type 2 diabetes is not associated with additional generalized endothelial dysfunction.
The findings suggest that ED in this specific diabetic cohort may stem from mechanisms distinct from systemic endothelial impairment.