scholarly journals Procollagen II C propeptide level in the synovial fluid as a predictor of radiographic progression in early knee osteoarthritis

2003 ◽  
Vol 62 (1) ◽  
pp. 27-32 ◽  
Author(s):  
S Sugiyama
Keyword(s):  
Synovial Fluid ◽  
Knee Osteoarthritis ◽  
Radiographic Progression

scholarly journals Association between synovial fluid levels of aggrecan ARGS fragments and radiographic progression in knee osteoarthritis

2010 ◽  
Vol 12 (6) ◽  
pp. R230 ◽  
Author(s):  
Staffan Larsson ◽  
Martin Englund ◽  
André Struglics ◽  
L Stefan Lohmander
Keyword(s):  
Synovial Fluid ◽  
Knee Osteoarthritis ◽  
Radiographic Progression ◽  
Fluid Levels

scholarly journals Synovial fluid but not plasma interleukin-8 is associated with clinical severity and inflammatory markers in knee osteoarthritis women with joint effusion

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
María García-Manrique ◽  
Joan Calvet ◽  
Cristóbal Orellana ◽  
Antoni Berenguer-Llergo ◽  
Silvia Garcia-Cirera ◽  
...  
Keyword(s):  
Synovial Fluid ◽  
Knee Osteoarthritis ◽  
Correlation Coefficient ◽  
Inflammatory Markers ◽  
Partial Correlation ◽  
Statistical Significance ◽  
Clinical Severity ◽  
Joint Effusion ◽  
Cross Sectional ◽  
Partial Correlation Coefficient

AbstractSeveral cytokines and adipokines are related to clinical severity and progression in knee osteoarthritis. The aim of this study was to evaluate the associations of IL-8 with clinical severity and with local and systemic adipokines and cytokines. This is a Cross-sectional study including 115 women with symptomatic primary knee osteoarthritis with ultrasound-confirmed joint effusion. Age, symptoms duration and body mass index were collected. Radiographic severity was evaluated according to Kellgren–Lawrence. Pain and disability were assessed by Lequesne and Knee injury and Osteoarthritis Outcome Score pain, symptoms and function scales. Three inflammatory markers and five adipokines were measured by ELISA in serum and synovial fluid. Partial correlation coefficient (PCC) and corresponding 95% confidence interval were used to evaluate association. Synovial fluid IL-8 was significantly associated with clinical severity scales. After controlling for potential confounders, associations measured by a Partial Correlation Coefficient (PCC) remained essentially unaltered for Lequesne (PCC = 0.237), KOOS pain (PCC = − 0.201) and KOOS symptoms (PCC = − 0.209), KOOS function (PCC = − 0.185), although the later did not reach statistical significance. Also in synovial fluid samples, associations were found between IL-8 and TNF (PCC = 0.334), IL6 (PCC = 0.461), osteopontin (PCC = 0.575), visfatin (PCC = 0.194) and resistin (PCC = 0.182), although significance was not achieved for the later after statistical control for confounders. None of these associations were detected in serum. In conclusion, IL-8 was associated with clinical severity, inflammatory markers and adipokines in synovial fluid, but not in blood. Although the reported associations are weak to moderate in magnitude, these findings reinforce the notion that local and not systemic inflammation is more relevant to clinical severity in knee OA women with joint effusion.

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