Related Experiment Videos
von Willebrand factor in synovial fluid
H D Bolosiu1, V Rus, I Parasca
1Department of Rheumatology, Medical Clinic No. 2, Cluj-Napoca, Romania.
Clinical and Experimental Rheumatology
|July 1, 1991
Summary
Von Willebrand factor (vWf) is elevated in inflammatory joint effusions compared to osteoarthritis, suggesting it reflects local inflammation. This finding aids in understanding joint disease markers.
Area of Science:
- Rheumatology
- Hematology
- Biochemistry
Background:
- Von Willebrand factor (vWf) is an endothelial product associated with vascular damage and acute phase reactions.
- vWf plays a role in hemostasis and endothelial integrity.
Purpose of the Study:
- To evaluate and compare synovial fluid levels of vWf in patients with inflammatory joint effusion and osteoarthritis.
- To determine if vWf levels correlate with markers of inflammation in synovial fluid.
Main Methods:
- Paired plasma and synovial fluid samples were collected from 54 patients with inflammatory joint effusion, 19 with osteoarthritis, and 19 controls.
- vWf levels were measured and compared between groups, with adjustments for albumin.
- Correlations between vWf and alpha-1-antitrypsin, white cell count, immunoglobulins, and C3 were analyzed.
Main Results:
- Synovial fluid vWf was detected in 36 patients.
- Mean vWf levels were significantly higher in the inflammatory joint effusion group (18.27%) compared to the osteoarthritis group (7.7%, p < 0.01).
- vWf correlated positively with synovial fluid alpha-1-antitrypsin and white cell count, but not with immunoglobulins or C3.
Conclusions:
- Elevated synovial fluid vWf levels are associated with inflammatory joint effusions.
- vWf in synovial fluid may serve as a marker for the local degree of joint inflammation.
- Further research could explore vWf's diagnostic or prognostic value in joint diseases.