Related Experiment Video

Updated: Sep 27, 2025

Investigating von Willebrand Factor Pathophysiology Using a Flow Chamber Model of von Willebrand Factor-platelet String Formation
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ADAMTS13, VWF, and Endotoxin Are Interrelated and Associated with the Severity of Liver Cirrhosis via

Hiroaki Takaya1, Tadashi Namisaki1, Shohei Asada1

  • 1Department of Gastroenterology, Nara Medical University, Kashihara 634-8522, Japan.

Journal of Clinical Medicine
|April 12, 2022
PubMed

Insights

The imbalance between ADAMTS13 activity and VWF antigen in liver cirrhosis is linked to endotoxin levels. Higher endotoxin correlates with altered ADAMTS13 and VWF:Ag, potentially driving hypercoagulability in cirrhosis.

Area of Science:

  • Hematology
  • Hepatology
  • Biochemistry

Background:

  • An imbalance between ADAMTS13 activity (ADAMTS13:AC) and VWF antigen (VWF:Ag) is linked to liver cirrhosis (LC) severity.
  • The underlying cause of this imbalance in LC patients remains unclear.

Purpose of the Study:

  • To investigate the relationship between ADAMTS13:AC, VWF:Ag, and endotoxin (Et) levels in patients with LC.
  • To explore the association of these factors with LC severity and VWF multimer status.

Main Methods:

  • Quantified ADAMTS13:AC and VWF:Ag using ELISA.
  • Measured Et levels via chromogenic substrate assay.
  • Assessed ADAMTS13 inhibitor (ADAMTS13:INH) and VWF multimer (VWFM) status.

Main Results:

  • ADAMTS13:AC and VWF:Ag decreased with LC severity, while Et levels increased.
  • High Et levels were associated with lower ADAMTS13:AC and higher VWF:Ag.
  • Detectable ADAMTS13:INH and abnormal VWFM (normal or UL) correlated with higher Et levels.

Conclusions:

  • ADAMTS13, VWF, and Et levels are interrelated and associated with LC severity.
  • Endotoxin may play a crucial role in the ADAMTS13-VWF imbalance observed in liver cirrhosis.
  • This interplay might contribute to the hypercoagulability state in patients with LC.
Keywords:
ADAMTS13endotoxinhypercoagulabilityliver cirrhosisvon Willebrand factor

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