Soluble CD40 ligand and atrial fibrillation: Relationship to platelet activation, and endothelial damage/dysfunction

Andrew Blann, A Choudhury, B Freestone, JV Patel, Gregory Lip

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Increased plasma soluble CD40L (sCD40L) is present in many cardiovascular diseases and predicts poor outcome, but levels in atrial fibrillation (AF) are unknown. Although the platelet is frequently cited as the source of sCD40L, this view is not universal. We hypothesised (a) raised sCD40L in non-rheumatic AF, and (b) that sCD40L correlates with platelet, but not endothelial, markers, thus suggesting a platelet origin. Plasma sCD40L, platelet marker soluble P-selectin and endothelial markers von Willebrand factor (vWf) and soluble E-selectin were measured by ELISA in 54 AF patients free of diabetes or major cardiovascular disease, and in 28 age/sex matched controls. Median (interquartile range) sCD40L in AF was 0.82 (0-4.8) ng/mL compared to 0.21 (0-5.5 ng/mL) in controls (p=0.0397). vWf and soluble P-selectin (p
Original languageEnglish
Pages (from-to)135-137
Number of pages3
JournalInternational Journal of Cardiology
Volume127
Issue number1
DOIs
Publication statusPublished - 1 Jun 2008

Keywords

  • atrial fibrillation
  • soluble CD40 ligand

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