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Persistent endothelial dysfunction is related to elevated C-reactive protein (CRP) levels in Type II diabetic

Thomas Nyström1, Arne Nygren, Ake Sjöholm

  • 1Department of Internal Medicine, Karolinska Institute, Stockholm South Hospital, SE-118 83 Stockholm, Sweden. thomas.nystrom@sos.sll.se

Clinical Science (London, England : 1979)
|October 27, 2004
PubMed

Insights

Type II diabetes patients show persistent endothelial dysfunction and inflammation after acute myocardial infarction, unlike non-diabetic patients. This may explain their poorer outcomes in coronary artery disease.

Area of Science:

  • Cardiology
  • Endocrinology
  • Vascular Biology

Background:

  • Type II diabetes is linked to poor outcomes in acute coronary artery disease, beyond traditional risk factors.
  • Endothelial dysfunction and inflammation are key aspects of atherosclerosis.

Purpose of the Study:

  • To compare non-traditional risk factors, including endothelial function and inflammatory markers, in Type II diabetic versus non-diabetic patients post-acute myocardial infarction (AMI).

Main Methods:

  • Assessed brachial artery flow-mediated vasodilatation (FMD) and nitroglycerine-induced vasodilatation (NTG) via ultrasound.
  • Measured plasma levels of C-reactive protein (CRP) and adiponectin using ELISA.
  • Compared Type II diabetic (n=20) and non-diabetic (n=25) patients at baseline and 60-day follow-up after AMI.

Main Results:

  • At baseline, adiponectin levels were lower in diabetic patients; FMD and CRP did not differ.
  • At 60 days, diabetic patients exhibited significantly lower FMD, higher CRP, and lower adiponectin compared to non-diabetic patients.
  • Both groups showed improved NTG responses, indicating preserved endothelium-independent function.

Conclusions:

  • Type II diabetes is associated with persistent endothelium-dependent dysfunction and elevated inflammatory activity following AMI.
  • These non-traditional risk factors may contribute to the adverse outcomes observed in diabetic patients with coronary artery disease.

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