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Updated: May 28, 2026

Ultrasound Assessment of Endothelial Function: A Technical Guideline of the Flow-mediated Dilation Test
Published on: April 27, 2016
Targeting endothelial dysfunction in vascular complications associated with diabetes
Arpeeta Sharma1, Pascal N Bernatchez, Judy B de Haan
1Oxidative Stress Laboratory, Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, P.O. Box 6492, St. Kilda Road Central, Melbourne, VIC 8008, Australia.
Insights
Diabetic cardiovascular complications stem from endothelial dysfunction, driven by reduced nitric oxide and increased oxidative stress. Novel therapies targeting these pathways offer potential vascular protection for diabetic patients.
Area of Science:
- Cardiovascular Research
- Endocrinology
- Vascular Biology
Background:
- Diabetes mellitus is a major risk factor for cardiovascular disease.
- Endothelial dysfunction is a critical early event in diabetes, accelerating vascular complications.
- Key mechanisms include reduced endothelial-derived nitric oxide (EDNO) and increased reactive oxygen species (ROS).
Purpose of the Study:
- To review novel therapeutic targets for diabetes-associated endothelial dysfunction.
- To explore strategies for upregulating EDNO production and enhancing antioxidant capacity.
- To highlight endogenous molecules and enzyme mimetics for restoring endothelial function.
Main Methods:
- Review of existing clinical and laboratory investigations.
- Analysis of endogenous signaling molecules modulating EDNO synthesis.
- Evaluation of mimetics of endogenous antioxidant enzymes.
Main Results:
- Endothelial dysfunction is a primary driver of diabetic cardiovascular complications.
- Therapeutic strategies focus on increasing EDNO and reducing ROS.
- Endogenous molecules and enzyme mimetics show promise.
Conclusions:
- Targeting EDNO production and antioxidant capacity can limit oxidative stress.
- Novel therapeutic strategies may confer vascular protection in diabetes.
- These approaches aim to improve outcomes for diabetes-associated vascular complications.
Abstract:
Cardiovascular complications associated with diabetes remain a significant health issue in westernized societies. Overwhelming evidence from clinical and laboratory investigations have demonstrated that these cardiovascular complications are initiated by a dysfunctional vascular endothelium. Indeed, endothelial dysfunction is one of the key events that occur during diabetes, leading to the acceleration of cardiovascular mortality and morbidity. In a diabetic milieu, endothelial dysfunction occurs as a result of attenuated production of endothelial derived nitric oxide (EDNO) and augmented levels of reactive oxygen species (ROS). Thus, in this review, we discuss novel therapeutic targets that either upregulate EDNO production or increase antioxidant enzyme capacity in an effort to limit oxidative stress and restore endothelial function. In particular, endogenous signaling molecules that positively modulate EDNO synthesis and mimetics of endogenous antioxidant enzymes will be highlighted. Consequently, manipulation of these unique targets, either alone or in combination, may represent a novel strategy to confer vascular protection, with the ultimate goal of improved outcomes for diabetes-associated vascular complications.
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