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Synovial fluid biomarkers associated with osteoarthritis severity reflect macrophage and neutrophil related inflammation.


ABSTRACT: BACKGROUND:To identify a synovial fluid (SF) biomarker profile characteristic of individuals with an inflammatory osteoarthritis (OA) endotype. METHODS:A total of 48 knees (of 25 participants) were characterized for an extensive array of SF biomarkers quantified by Rules Based Medicine using the high-sensitivity multiplex immunoassay, Myriad Human InflammationMAP® 1.0, which included 47 different cytokines, chemokines, and growth factors related to inflammation. Multivariable regression with generalized estimating equations (GEE) and false discovery rate (FDR) correction was used to assess associations of SF RBM biomarkers with etarfolatide imaging scores reflecting synovial inflammation; radiographic knee OA severity (based on Kellgren-Lawrence (KL) grade, joint space narrowing, and osteophyte scores); knee joint symptoms; and SF biomarkers associated with activated macrophages and knee OA progression including CD14 and CD163 (shed by activated macrophages) and elastase (shed by activated neutrophils). RESULTS:Significant associations of SF biomarkers meeting FDR

SUBMITTER: Haraden CA 

PROVIDER: S-EPMC6567574 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Synovial fluid biomarkers associated with osteoarthritis severity reflect macrophage and neutrophil related inflammation.

Haraden Collin A CA   Huebner Janet L JL   Hsueh Ming-Feng MF   Li Yi-Ju YJ   Kraus Virginia Byers VB  

Arthritis research & therapy 20190613 1


<h4>Background</h4>To identify a synovial fluid (SF) biomarker profile characteristic of individuals with an inflammatory osteoarthritis (OA) endotype.<h4>Methods</h4>A total of 48 knees (of 25 participants) were characterized for an extensive array of SF biomarkers quantified by Rules Based Medicine using the high-sensitivity multiplex immunoassay, Myriad Human InflammationMAP® 1.0, which included 47 different cytokines, chemokines, and growth factors related to inflammation. Multivariable regr  ...[more]

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