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Clinical aspects of endothelial dysfunction associated with human immunodeficiency virus infection and antiretroviral

Sudha S Shankar1, Michael P Dubé

  • 1Department of Medicine and Divisions of Endocrinology, Indiana University School of Medicine, Indianapolis, IN, USA.

Cardiovascular Toxicology
|October 8, 2004
PubMed

Insights

Human immunodeficiency virus type 1 (HIV-1) protease inhibitors (PIs) may cause endothelial dysfunction, a key step in atherosclerosis. This dysfunction is linked to lipid and glucose metabolism changes, impacting cardiovascular health in HIV patients.

Area of Science:

  • Cardiovascular Science
  • Infectious Disease Research
  • Pharmacology

Background:

  • Endothelial dysfunction is a primary event in atherogenesis, contributing to atherosclerosis progression and clinical outcomes.
  • Human immunodeficiency virus type 1 (HIV-1) protease inhibitor (PI) use is linked to increased cardiovascular events and risk factors like dyslipidemia, insulin resistance, and endothelial dysfunction.
  • Endothelial dysfunction in HIV patients may stem from the infection itself or antiretroviral treatment side effects.

Purpose of the Study:

  • To investigate the role of HIV-1 protease inhibitors (PIs) in causing endothelial dysfunction.
  • To explore the mechanisms by which PIs affect lipid and glucose metabolism, contributing to endothelial dysfunction.
  • To assess the contribution of metabolic and body shape changes associated with HIV treatment-related lipodystrophy to endothelial dysfunction.

Main Methods:

  • Review of available evidence on PI effects on cardiovascular risk factors.
  • Analysis of studies examining endothelial function in healthy subjects treated with specific PIs (e.g., indinavir).
  • Investigation into the physiological mechanisms underlying PI-induced endothelial dysfunction.

Main Results:

  • Evidence suggests PIs can induce endothelial dysfunction through impacts on lipid and glucose metabolism.
  • Studies confirm reduced endothelial nitric oxide production in indinavir-associated endothelial dysfunction.
  • Metabolic alterations and lipodystrophy associated with HIV treatment may contribute to endothelial dysfunction.

Conclusions:

  • HIV-1 PIs are implicated in causing endothelial dysfunction, a critical factor in atherosclerosis development.
  • Further research is required to elucidate the mechanisms and identify effective interventions for endothelial dysfunction in HIV-infected individuals.
  • Understanding the comparative effects of different antiretroviral agents on endothelial function is crucial for managing cardiovascular risk in this population.

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