Maresin-1 and Maresin-2 Levels in Synovial Fluid as Potential Biomarkers
Overview
This study evaluates synovial fluid levels of maresin-1 and maresin-2 in patients with psoriatic arthritis, rheumatoid arthritis, and osteoarthritis. Maresin-1 levels were significantly higher in psoriatic arthritis compared to rheumatoid arthritis.
Background
The differentiation between psoriatic arthritis (PsA) and rheumatoid arthritis (RA) is clinically significant due to their differing pathophysiological mechanisms. Current biomarkers are limited in their specificity.
Data Highlights
Group
MaR-1 (ng/mL)
MaR-2 (ng/mL)
PsA
Higher
Modest differences
RA
Lower
Modest differences
Key Findings
Significant differences in MaR-1 levels between PsA and RA (p < 0.01).
ROC analysis showed MaR-1 had an AUC of 0.815 for distinguishing PsA from RA.
A cut-off value of 3.252 ng/mL for MaR-1 provided 68.2% sensitivity and 86.4% specificity.
Higher MaR-1 levels were significantly associated with PsA (OR = 1.62, p = 0.003).
MaR-1 and MaR-2 levels were moderately positively correlated (Spearman’s r = 0.620, p < 0.001).
Clinical Implications
Further validation in larger studies is necessary to establish the clinical utility of these biomarkers.
Conclusion
Maresin-1 levels in synovial fluid show differences between psoriatic arthritis and rheumatoid arthritis, while the role of maresin-2 requires further investigation.
