Trends among platelet function, arterial calcium, and vascular function measures

Jason Cunha1,2, Melissa V Chan1,2, Bongani B Nkambule1,2

  • 1National Heart, Lung and Blood Institute's the Framingham Heart Study, Boston University and National Heart, Framingham, MA, USA.

Platelets
|August 23, 2023
PubMed

Insights

Arterial tonometry and vascular calcification are linked to cardiovascular disease risk. This study found associations between arterial measures, platelet function, and calcification, suggesting interconnectedness in atherosclerosis development.

Area of Science:

  • Cardiovascular Medicine
  • Vascular Biology
  • Platelet Physiology

Background:

  • Arterial tonometry and vascular calcification are established cardiovascular disease (CVD) risk assessment tools.
  • Prior research indicates associations between arterial measures, calcification, and CVD risk.
  • Platelet activation and angiopoietin-1 release may link vascular structure and platelet function.

Purpose of the Study:

  • To investigate the relationship between arterial tonometry measures, platelet function, and vascular calcification.
  • To explore potential connections between vascular structure (aorta diameter) and platelet reactivity.
  • To analyze these associations within the Framingham Heart Study cohorts.

Main Methods:

  • Analysis of arterial tonometry, platelet function (5 assays, 7 agonists), and calcification (aortic, thoracic, coronary) in 3,429 participants.
  • Measurement of thoracic and abdominal aorta diameters.
  • Linear mixed effects models were used, adjusting for CVD risk factors and family structure.

Main Results:

  • Higher arterial calcium trended with increased platelet reactivity.
  • Larger aortic diameters trended with decreased platelet reactivity.
  • Specific arterial tonometry measures showed mixed trends with platelet reactivity traits (e.g., Zc, pulse pressure, pulse wave velocity).

Conclusions:

  • Vascular calcification and platelet activation appear interrelated in subclinical atherosclerosis.
  • Aortic diameter trends suggest lower shear environments may reduce platelet reactivity.
  • While trends were observed, results did not meet stringent multiple test correction thresholds.

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