Platelet degranulation and bleeding phenotype in a large cohort of Von Willebrand disease patients

WiN study group

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2 Citations (Scopus)

Abstract

Von Willebrand disease (VWD) is a bleeding disorder caused by quantitative (type 1 or 3) or qualitative (type 2A/2B/2M/2N) defects of circulating von Willebrand factor (VWF). Circulating VWF levels not always fully explain bleeding phenotypes, suggesting a role for alternative factors, like platelets. Here, we investigated platelet factor 4 (PF4) in a large cohort of patients with VWD. PF4 levels were lower in type 2B and current bleeding phenotype was significantly associated with higher PF4 levels, particularly in type 1 VWD. Based on our findings we speculate that platelet degranulation and cargo release may play a role across VWD subtypes.
Original languageEnglish
Pages (from-to)497-501
Number of pages5
JournalBritish journal of haematology
Volume197
Issue number4
DOIs
Publication statusPublished - 1 May 2022

Keywords

  • VWD
  • VWF
  • bleeding disorders
  • platelet activation
  • platelet factor 4

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