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Does ADMA cause endothelial dysfunction?

J P Cooke1

  • 1Division of Cardiovascular Medicine, Falk Cardiovascular Research Center, Stanford University School of Medicine, Stanford, CA 94305-5406, USA. john.cooke@stanford.edu

Arteriosclerosis, Thrombosis, and Vascular Biology
|September 9, 2000
PubMed
Summary
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Asymmetric dimethylarginine (ADMA), a nitric oxide synthase inhibitor, is elevated in atherosclerosis patients. Higher ADMA levels correlate with endothelial dysfunction and may be a novel vascular disease risk factor.

Area of Science:

  • Biochemistry
  • Cardiovascular Science
  • Endocrinology

Background:

  • Asymmetric dimethylarginine (ADMA) is an endogenous inhibitor of nitric oxide synthase (NOS).
  • Elevated plasma ADMA levels are observed in patients with atherosclerosis and its risk factors.
  • ADMA's role in vascularpathology is increasingly recognized.

Purpose of the Study:

  • To investigate the association between plasma ADMA levels and atherosclerosis severity.
  • To explore ADMA's potential as a risk factor for vascular disease.

Main Methods:

  • Plasma ADMA levels were measured in patients with atherosclerosis and control groups.
  • Correlation analysis was performed between ADMA levels and markers of endothelial dysfunction and atherosclerosis severity.

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Main Results:

  • Plasma ADMA levels were significantly elevated in patients with atherosclerosis compared to controls.
  • ADMA levels showed a positive correlation with the severity of endothelial dysfunction.
  • ADMA levels were also correlated with the extent of atherosclerotic burden.

Conclusions:

  • Elevated plasma ADMA is linked to endothelial dysfunction and atherosclerosis.
  • ADMA may play a causal role in the progression of vascular disease.
  • ADMA represents a potential novel risk factor for atherosclerosis and related vascular complications.