Endothelial dysfunction in acute coronary syndrome without ST segment elevation in the presence of Helicobacter

Zofia Grabczewska1, Edmund Nartowicz, Ludmiła Szymaniak

  • 1Department of Cardiology and Internal Diseases, Medical Academy, Bydgoszcz, Poland.

Kardiologia Polska
|September 10, 2003
PubMed

Insights

Helicobacter pylori (H. pylori) infection may influence coronary artery disease (CAD) development. Specific H. pylori antigens, not general IgG antibodies, show associations with endothelial dysfunction markers in acute coronary syndrome patients.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Vascular Biology

Background:

  • Helicobacter pylori (H. pylori) infection is a common chronic infection.
  • The link between H. pylori and atherosclerosis/coronary artery diseases (CAD) requires further clarification.

Purpose of the Study:

  • To investigate the association between H. pylori infection and endothelial function in patients diagnosed with acute coronary syndrome (ACS) without ST segment elevation.

Main Methods:

  • Evaluated 31 patients (17 males, 14 females) with ACS.
  • Measured H. pylori antibodies and endothelial function markers (von Willebrand factor, thrombomodulin, tissue plasmin activator, PAI-1, fibrinogen).

Main Results:

  • H. pylori seropositivity was high (93.5%).
  • No significant correlation was found between general H. pylori IgG antibodies and endothelial function parameters.
  • Specific antibodies to H. pylori p54 protein correlated with vWF (p=0.027).
  • Antibodies to H. pylori p33 protein showed a significant association with PAI-1 concentration (p=0.019).

Conclusions:

  • The specific H. pylori antigens and corresponding antibodies, rather than general H. pylori IgG presence, may contribute to CAD development.
  • Further research is needed to elucidate the role of specific H. pylori antigens in atherosclerosis.
Abstract

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