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A biomarker panel for peripheral arterial disease

Eric T Fung1, Andrew M Wilson, Fujun Zhang

  • 1Vermillion, Inc., Fremont, CA, USA.

Vascular Medicine (London, England)
|August 9, 2008
PubMed

Insights

A new biomarker panel including beta 2 microglobulin (beta2M), cystatin C, hsCRP, and glucose can help identify peripheral arterial disease (PAD). This index improves risk assessment beyond traditional factors for better vascular testing and management.

Area of Science:

  • Cardiovascular Medicine
  • Biomarker Discovery
  • Vascular Health

Background:

  • Peripheral arterial disease (PAD) is prevalent but frequently undiagnosed.
  • Early detection of PAD is crucial for timely vascular testing and management.
  • A reliable biomarker index could significantly improve PAD suspicion and diagnosis.

Purpose of the Study:

  • To develop and validate a biomarker panel score for predicting peripheral arterial disease (PAD).
  • To assess the predictive power of the biomarker panel compared to conventional risk factors.
  • To enhance the diagnostic suspicion for PAD through a novel biomarker index.

Main Methods:

  • Studied 540 individuals, including those with coronary artery disease (CAD) and PAD, CAD only, and no significant arterial disease.
  • Employed multiple linear regression to create a biomarker panel score predicting ankle-brachial index (ABI).
  • Utilized logistic regression and ROC analysis to evaluate the association between the panel score, PAD status, and known risk factors.

Main Results:

  • Beta 2 microglobulin (beta2M) and cystatin C showed the strongest correlation with ABI, outperforming age, diabetes, and smoking status.
  • A biomarker panel score (beta2M, cystatin C, hsCRP, glucose) was significantly associated with PAD status (OR = 12.4).
  • The panel score remained significant after adjusting for traditional risk factors (OR = 7.3), indicating added value.

Conclusions:

  • A biomarker panel comprising beta2M, cystatin C, hsCRP, and glucose provides valuable information for assessing PAD risk.
  • This panel enhances risk assessment beyond traditional factors, aiding in the identification of individuals needing further vascular evaluation.
  • The findings support the utility of this biomarker index in clinical practice for improving PAD diagnosis and management.

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