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Updated: Aug 6, 2026
03:53
Extracellular Vesicle Tissue Factor Activity Assay
Published on: December 29, 2023
Elevated Tissue Factor and TFPI Levels in Acute COPD Exacerbations: A Prospective Comparison With Stable COPD and
Summary
Tissue factor (TF) and TFPI are elevated in acute exacerbation of COPD (AECOPD), indicating a prothrombotic state. These biomarkers are more sensitive than D-dimer or PT for detecting coagulation-inflammation changes in AECOPD.
Area of Science:
- Pulmonary Medicine
- Hematology
- Biomarker Research
Background:
- Acute exacerbation of COPD (AECOPD) is associated with complex inflammatory and hemostatic alterations.
- Understanding hypercoagulability in AECOPD is crucial for risk stratification and management.
Purpose of the Study:
- To evaluate tissue factor (TF) and tissue factor pathway inhibitor (TFPI) as potential biomarkers of hypercoagulability in AECOPD.
- To compare TF and TFPI levels in AECOPD patients with stable COPD patients and healthy controls.
- To investigate the correlation between TF, TFPI, inflammatory markers, and coagulation parameters in AECOPD.
Main Methods:
- Prospective study involving 30 AECOPD patients, 30 stable COPD patients, and 30 healthy controls.
- Measurement of serum TF, TFPI, inflammatory markers (CRP, IL-8, TNF-α), and coagulation parameters (D-dimer, PT).
- Pearson correlation analysis to assess relationships between biomarkers and clinical parameters in AECOPD.
Main Results:
- Serum TF, TFPI, CRP, IL-8, and TNF-α were significantly elevated in AECOPD patients compared to stable COPD and healthy controls (p < 0.05).
- No significant differences in D-dimer and prothrombin time were observed between AECOPD and stable COPD groups.
- IL-8 correlated with FEV1/FVC and PO2; TNF-α correlated with TF and PT; TFPI correlated with hemoglobin in AECOPD patients.
Conclusions:
- Elevated circulating TF and TFPI antigen levels in AECOPD suggest a prothrombotic profile.
- TF and TFPI demonstrate greater sensitivity than D-dimer and PT in reflecting coagulation-inflammation perturbations during AECOPD.
- These findings highlight TF and TFPI as valuable biomarkers for assessing hypercoagulability in AECOPD.
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