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Published on: October 15, 2010

Endothelial function in individuals with coronary artery disease with and without type 2 diabetes mellitus

Gissette Reyes-Soffer1, Steve Holleran, Marco R Di Tullio

  • 1Department of Medicine, Columbia University Medical Center, New York, NY 10032, USA.

Metabolism: Clinical and Experimental
|January 28, 2010
PubMed

Insights

Individuals with coronary artery disease and type 2 diabetes mellitus experience greater endothelial dysfunction than those with only coronary artery disease. This finding highlights the impact of diabetes on vascular health in heart disease patients.

Area of Science:

  • Cardiovascular Medicine
  • Endocrinology
  • Vascular Biology

Background:

  • Coronary artery disease (CAD) and type 2 diabetes mellitus (T2DM) are major global health concerns.
  • Endothelial dysfunction (ED) is an early marker of cardiovascular disease.
  • The combined impact of CAD and T2DM on ED requires further elucidation.

Purpose of the Study:

  • To investigate whether individuals with both CAD and T2DM exhibit greater endothelial dysfunction compared to individuals with CAD alone.
  • To assess the independent association of T2DM with ED in patients with established CAD.

Main Methods:

  • Flow-mediated dilation (FMD) was measured in two cohorts of patients with CAD.
  • FMD, a measure of endothelial function, was assessed via percentage increase in brachial artery diameter.
  • Statistical analysis, including multiple regression, adjusted for covariates like age and body mass index.

Main Results:

  • A cohort of 103 patients with CAD (52 T2DM+, 51 T2DM-) was analyzed.
  • Patients with both CAD and T2DM (T2DM+) showed significantly lower mean FMD (3.9%) compared to those with CAD only (T2DM-, 5.5%; P < .03).
  • Adjusting for age and BMI, T2DM remained independently associated with greater ED (difference, -1.99%; P < .03).

Conclusions:

  • Concomitant T2DM in patients with CAD is independently linked to increased endothelial dysfunction.
  • This heightened ED may contribute to the elevated morbidity and mortality observed in patients with both conditions.
  • Findings underscore the critical need for managing T2DM in CAD patients to mitigate vascular complications.

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