Cited by 328Osteoarthritis Treatment and MechanismsProteoglycans and glycosaminoglycans researchMusculoskeletal pain and rehabilitation

Value of biomarkers in osteoarthritis: current status and perspectives

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Lotz, M, Martel-Pelletier, J, Christiansen, C, Brandi, M-L, Bruyère, O, Chapurlat, R, Collette, J, Cooper, C +13 more·2013·Annals of the Rheumatic Diseases

Abstract

Osteoarthritis affects the whole joint structure with progressive changes in cartilage, menisci, ligaments and subchondral bone, and synovial inflammation. Biomarkers are being developed to quantify joint remodelling and disease progression. This article was prepared following a working meeting of the European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis convened to discuss the value of biochemical markers of matrix metabolism in drug development in osteoarthritis. The best candidates are generally molecules or molecular fragments present in cartilage, bone or synovium and may be specific to one type of joint tissue or common to them all. Many currently investigated biomarkers are associated with collagen metabolism in cartilage or bone, or aggrecan metabolism in cartilage. Other biomarkers are related to non-collagenous proteins, inflammation and/or fibrosis. Biomarkers in osteoarthritis can be categorised using the burden of disease, investigative, prognostic, efficacy of intervention, diagnostic and safety classification. There are a number of promising candidates, notably urinary C-terminal telopeptide of collagen type II and serum cartilage oligomeric protein, although none is sufficiently discriminating to differentiate between individual patients and controls (diagnostic) or between patients with different disease severities (burden of disease), predict prognosis in individuals with or without osteoarthritis (prognostic) or perform so consistently that it could function as a surrogate outcome in clinical trials (efficacy of intervention). Future avenues for research include exploration of underlying mechanisms of disease and development of new biomarkers; technological development; the 'omics' (genomics, metabolomics, proteomics and lipidomics); design of aggregate scores combining a panel of biomarkers and/or imaging markers into single diagnostic algorithms; and investigation into the relationship between biomarkers and prognosis.

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  • International consortia like the FNIH and OARSI are developing standardized protocols, reference materials, and quality management systems to ensure measurement reliability and facilitate clinical implementation.

    “with international consortia like the FNIH and OARSI developing standardized protocols, reference materials, and quality management systems to ensure measurement reliability and facilitate clinical implementation [162].”

    From Biomarker-Guided Imaging and AI-Augmented Diagnosis of Degenerative Joint Disease (2025) · cites this paper as [162]

    The Discussion (page unavailable) describes an ongoing OARSI/Foundation for NIH comparison of biomarkers and identifies standardisation and calibration as future research needs to address measurement errors. It does not say those organisations are developing standardized protocols, reference materials, or quality management systems, nor that such systems are facilitating clinical implementation. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Biomarker standardization addresses technical variability across preanalytical, analytical, and post-analytical phases.

    “Biomarker standardization addresses technical variability across preanalytical, analytical, and post-analytical phases”

    From Biomarker-Guided Imaging and AI-Augmented Diagnosis of Degenerative Joint Disease (2025) · cites this paper as [162]

    The Discussion (page unavailable) identifies errors related to sampling and assay characteristics and recommends standardisation, calibration, and improved data collection to address them. It does not describe variability across all three named phases or specifically address the post-analytical phase; it presents standardisation as a needed improvement, not an achieved solution. (LLM, conf=0.83)

    Experimental — accuracy not yet measured

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Research works printed but not linked: 79

  1. [1]Bijlsma JW Berenbaum F Lafeber FP Osteoarthritis: an update with relevance for clinical practice. Lancet 2011; 377: 2115– 26 21684382
  2. [4]Hunter DJ Guermazi A Imaging techniques in osteoarthritis. PM&R 2012; 4: S68– 74 22632705
  3. [5]Atkinson AJ Colburn WA DeGruttola VG Biomarkers Definitions Working Group. Biomarkers and surrogate endpoints: preferred definitions and conceptual framework. Clin Pharmacol Ther 2001; 69: 89– 95 11240971
  4. [6]Iagnocco A Perricone C Scirocco C The interobserver reliability of ultrasound in knee osteoarthritis. Rheumatology (Oxford) 2012; 51: 2013– 19 22843774
  5. [7]Eckstein F Wirth W Quantitative cartilage imaging in knee osteoarthritis. Arthritis 2011; 2011: 475684 22046518 PMC3200067
  6. [8]Pelletier JP Cooper C Peterfy C What is the predictive value of MRI for the occurrence of knee replacement surgery in knee osteoarthritis? Ann Rheum Dies 2013; 72: 1594 604 23887285
  7. [9]Scanzello CR Plaas A Crow MK Innate immune system activation in osteoarthritis: is osteoarthritis a chronic wound? Cur Open Rheumatic 2008; 20: 565– 72 18698179
  8. [11]Rousseau JC Garnero P OARSI Primer. Chapter 10. Biochemical markers 2010 http://primer.oarsi.org (accessed 6 Nov 2012)
  9. [12]Charni-Ben TN Garnero P Monitoring cartilage turnover. Cur Rheumatic Rep 2007; 9: 16– 24 17437662
  10. [13]Mobasheri A Osteoarthritis year 2012 in review: biomarkers. Osteoarthritis Cartilage 2012; 20: 1451– 64 22842200
  11. [14]Rousseau JC Garnero P Biological markers in osteoarthritis. Bone 2012; 51: 265– 77 22538364
  12. [15]Williams FM Spector TD Biomarkers in osteoarthritis. Arthritis Res Ther 2008; 10: 101 18226182 PMC2374440
  13. [16]Rousseau JC Delmas PD Biological markers in osteoarthritis. Nat Clin Pract Rheumatic 2007; 3: 346– 56 17538566
  14. [17]Karsdal MA Madsen SH Christiansen C Cartilage degradation is fully reversible in the presence of aggrecanase but not matrix metalloproteinase activity. Arthritis Res Ther 2008; 10: R63 18513402 PMC2483454
  15. [18]Karsdal MA Nielsen MJ Sand JM Extracellular matrix remodeling: the common denominator in connective tissue diseases possibilities for evaluation and current understanding of the matrix as more than a passive architecture, but a key player in tissue failure. Assay Drug Dev Technol 2013; 11: 70– 92 23046407 PMC3593693
  16. [19]Karsdal MA Woodworth T Henriksen K Biochemical markers of ongoing joint damage in rheumatoid arthritis—current and future applications, limitations and opportunities. Arthritis Res Ther 2011; 13: 215 21539724 PMC3132026
  17. [20]van Spil WE Degroot J Lems WF Serum and urinary biochemical markers for knee and hip-osteoarthritis: a systematic review applying the consensus BIPED criteria. Osteoarthritis Cartilage 2010; 18: 605– 12 20175979
  18. [21]Bauer DC Hunter DJ Abramson SB Classification of osteoarthritis biomarkers: a proposed approach. Osteoarthritis Cartilage 2006; 14: 723– 7 16733093
  19. [22]Kraus VB Osteoarthritis year 2010 in review: biochemical markers. Osteoarthritis Cartilage 2011; 19: 346– 53 21320614 PMC3065527
  20. [23]Kraus VB Nevitt M Sandell LJ Summary of the OA biomarkers workshop 2009—biochemical biomarkers: biology, validation, and clinical studies. Osteoarthritis Cartilage 2010; 18: 742– 5 20206708
  21. [24]Jain KK The handbook of biomarkers. New York, NY: Springer, 2010
  22. [26]Dam EB Loog M Christiansen C Identification of progressors in osteoarthritis by combining biochemical and MRI-based markers. Arthritis Res Ther 2009; 11: R115 19630944 PMC2745797
  23. [27]King KB Lindsey CT Dunn TC A study of the relationship between molecular biomarkers of joint degeneration and the magnetic resonance-measured characteristics of cartilage in 16 symptomatic knees. Magn Reson Imaging 2004; 22: 1117– 23 15527998
  24. [28]Wang Y Li D Xu N Follistatin-like protein 1: a serum biochemical marker reflecting the severity of joint damage in patients with osteoarthritis. Arthritis Res Ther 2011; 13: R193 22117761 PMC3334643
  25. [29]Rousseau JC Zhu Y Miossec P Serum levels of type IIA procollagen amino terminal propeptide (PIIANP) are decreased in patients with knee osteoarthritis and rheumatoid arthritis. Osteoarthritis Cartilage 2004; 12: 440– 7 15135140
  26. [30]Dufield DR Nemirovskiy OV Jennings MG An immunoaffinity liquid chromatography-tandem mass spectrometry assay for detection of endogenous aggrecan fragments in biological fluids: use as a biomarker for aggrecanase activity and cartilage degradation. Anal Biochem 2010; 406: 113– 23 20603097
  27. [31]Chayanupatkul M Honsawek S Soluble receptor for advanced glycation end products (sRAGE) in plasma and synovial fluid is inversely associated with disease severity of knee osteoarthritis. Clin Biochem 2010; 43: 1133– 7 20627100
  28. [32]Huang K Wu LD YKL-40: a potential biomarker for osteoarthritis. J Int Med Res 2009; 37: 18– 24 19215669
  29. [33]Johansen JS Hvolris J Hansen M Serum YKL-40 levels in healthy children and adults. Comparison with serum and synovial fluid levels of YKL-40 in patients with osteoarthritis or trauma of the knee joint. Br J Rheumatic 1996; 35: 553– 9 8670576
  30. [34]Wang Q Rozelle AL Lepus CM Identification of a central role for complement in osteoarthritis. Nat Med 2011; 17: 1674– 9 22057346 PMC3257059
  31. [35]Meulenbelt I Kloppenburg M Kroon HM Urinary CTX-II levels are associated with radiographic subtypes of osteoarthritis in hip, knee, hand, and facet joints in subject with familial osteoarthritis at multiple sites: the GARP study. Ann Rheum Dies 2006; 65: 360– 5 PMC1798062 16079167
  32. [36]Kraus VB Kepler TB Stabler T First qualification study of serum biomarkers as indicators of total body burden of osteoarthritis. PLoS ONE 2010; 5: e9739 20305824 PMC2840035
  33. [38]Larsson S Englund M Struglics A The association between changes in synovial fluid levels of ARGS-aggrecan fragments, progression of radiographic osteoarthritis and self-reported outcomes: a cohort study. Osteoarthritis Cartilage 2012; 20: 388– 95 22330175
  34. [39]Clark AG Jordan JM Vilim V Serum cartilage oligomeric matrix protein reflects osteoarthritis presence and severity: the Johnston County Osteoarthritis Project. Arthritis Rheum 1999; 42: 2356– 64 10555031
  35. [40]Wislowska M Jablonska B Serum cartilage oligomeric matrix protein (COMP) in rheumatoid arthritis and knee osteoarthritis. Clin Rheumatic 2005; 24: 278– 84 15940561
  36. [41]Denoble AE Huffman KM Stabler TV Uric acid is a danger signal of increasing risk for osteoarthritis through inflammasome activation. Proc Natl Acad Sci USA 2011; 108: 2088– 93 21245324 PMC3033282
  37. [42]Catterall JB Hsueh MF Stabler TV Protein modification by deamidation indicates variations in joint extracellular matrix turnover. J Biol Chem 2012; 287: 4640– 51 22179616 PMC3281605
  38. [43]Meulenbelt I Kloppenburg M Kroon HM Clusters of biochemical markers are associated with radiographic subtypes of osteoarthritis (OA) in subject with familial OA at multiple sites. The GARP study. Osteoarthritis Cartilage 2007; 15: 379– 85 17052923
  39. [44]Chen HC Kraus VB Li YJ Genome-wide linkage analysis of quantitative biomarker traits of osteoarthritis in a large, multigenerational extended family. Arthritis Rheum 2010; 62: 781– 90 20187133 PMC3684272
  40. [45]Lago R Gomez R Otero M A new player in cartilage homeostasis: adiponectin induces nitric oxide synthase type II and pro-inflammatory cytokines in chondrocytes. Osteoarthritis Cartilage 2008; 16: 1101– 9 18261936
  41. [46]Lago F Dieguez C Gomez-Reino J The emerging role of adipokines as mediators of inflammation and immune responses. Cytokine Growth Factor Rev 2007; 18: 313– 25 17507280
  42. [47]Berner HS Lyngstadaas SP Spahr A Adiponectin and its receptors are expressed in bone-forming cells. Bone 2004; 35: 842– 9 15454091
  43. [48]Gosset M Berenbaum F Salvat C Crucial role of visfatin/pre-B cell colony-enhancing factor in matrix degradation and prostaglandin E2 synthesis in chondrocytes: possible influence on osteoarthritis. Arthritis Rheum 2008; 58: 1399– 409 18438860
  44. [49]Vuolteenaho K Koskinen A Kukkonen M Leptin enhances synthesis of proinflammatory mediators in human osteoarthritic cartilage–mediator role of NO in leptin-induced PGE2, IL-6, and IL-8 production. Mediators Inflamm 2009; 2009: 345838 19688109 PMC2726438
  45. [50]Ku JH Lee CK Joo BS Correlation of synovial fluid leptin concentrations with the severity of osteoarthritis. Clin Rheumatic 2009; 28: 1431– 5 19662330
  46. [51]Schaffler A Ehling A Neumann E Adipocytokines in synovial fluid. JAMA 2003; 290: 1709– 10 14519703
  47. [52]Reijman M Hazes JM Bierma-Zeinstra SM A new marker for osteoarthritis: cross-sectional and longitudinal approach. Arthritis Rheum 2004; 50: 2471– 8 15334460
  48. [53]Dam EB Byrjalsen I Karsdal MA Increased urinary excretion of C-telopeptides of type II collagen (CTX-II) predicts cartilage loss over 21 months by MRI. Osteoarthritis Cartilage 2009; 17: 384– 9 18768336
  49. [54]van Spil WE Drossaers-Bakker KW Lafeber FP Associations of CTX-II with biochemical markers of bone turnover raise questions on its tissue origin: data from CHECK, a cohort study of early osteoarthritis. Ann Rheum Dies 2013; 72: 29– 36 22689318
  50. [55]Sowers MF Karvonen-Gutierrez CA Yosef M Longitudinal changes of serum COMP and urinary CTX-II predict X-ray defined knee osteoarthritis severity and stiffness in women. Osteoarthritis Cartilage 2009; 17: 1609– 14 19563924 PMC2788064
  51. [56]Golightly YM Marshall SW Kraus VB Biomarkers of incident radiographic knee osteoarthritis: do they vary by chronic knee symptoms? Arthritis Rheum 2011; 63: 2276– 83 21506100 PMC3149729
  52. [57]Pelletier JP Raynauld JP Caron J Decrease in serum level of matrix metalloproteinases is predictive of the disease-modifying effect of osteoarthritis drugs assessed by quantitative MRI in patients with knee osteoarthritis. Ann Rheum Dies 2010; 69: 2095– 101 20570834
  53. [58]Berry PA Maciewicz RA Wluka AE Relationship of serum markers of cartilage metabolism to imaging and clinical outcome measures of knee joint structure. Ann Rheum Dies 2010; 69: 1816– 22 20551154
  54. [59]Bay-Jensen AC Liu Q Byrjalsen I Enzyme-linked immunosorbent assay (ELISAs) for metalloproteinase derived type II collagen neoepitope, CIIM—increased serum CIIM in subjects with severe radiographic osteoarthritis. Clin Biochem 2011; 44: 423– 9 21223960
  55. [60]Ishijima M Watari T Naito K Relationships between biomarkers of cartilage, bone, synovial metabolism and knee pain provide insights into the origins of pain in early knee osteoarthritis. Arthritis Res Ther 2011; 13: R22 21320321 PMC3241366
  56. [61]Chen WP Bao JP Feng J Increased serum concentrations of visfatin and its production by different joint tissues in patients with osteoarthritis. Clin Chem Lab Med 2010; 48: 1141– 5 20482384
  57. [62]Laurberg TB Frystyk J Ellingsen T Plasma adiponectin in patients with active, early, and chronic rheumatoid arthritis who are steroid- and disease-modifying antirheumatic drug-naive compared with patients with osteoarthritis and controls. J Rheumatic 2009; 36: 1885– 91 19684150
  58. [63]Yusuf E Ioan-Facsinay A Bijsterbosch J Association between leptin, adiponectin and resistin and long-term progression of hand osteoarthritis. Ann Rheum Dies 2011; 70: 1282– 4 21470970
  59. [64]Berry PA Jones SW Cicuttini FM Temporal relationship between serum adipokines, biomarkers of bone and cartilage turnover, and cartilage volume loss in a population with clinical knee osteoarthritis. Arthritis Rheum 2011; 63: 700– 7 21305502
  60. [65]Stannus OP Jones G Quinn SJ The association between leptin, interleukin-6, and hip radiographic osteoarthritis in older people: a cross-sectional study. Arthritis Res Ther 2010; 12: R95 20482813 PMC2911879
  61. [66]Smith JW Martins TB Gopez E Significance of C-reactive protein in osteoarthritis and total knee arthroplasty outcomes. Ther Adv Musculoskelet Dies 2012; 4: 315– 25 PMC3458617 23024709
  62. [67]Sharif M Shepstone L Elson CJ Increased serum C reactive protein may reflect events that precede radiographic progression in osteoarthritis of the knee. Ann Rheum Dies 2000; 59: 71– 4 PMC1752992 10627432
  63. [68]Stannus O Jones G Cicuttini F Circulating levels of IL-6 and TNF-alpha are associated with knee radiographic osteoarthritis and knee cartilage loss in older adults. Osteoarthritis Cartilage 2010; 18: 1441– 7 20816981
  64. [69]Reginster J-Y Badurski J Bellamy N Efficacy and safety of oral strontium ranelate for the treatment of knee osteoarthritis: results of a randomised double-blind, placebo-controlled trial. Ann Rheum Dies 2013; 72: 179– 86 PMC3599139 23117245
  65. [70]Meulenbelt I Kraus VB Sandell LJ Summary of the OA biomarkers workshop 2. Osteoarthritis Cartilage 2011; 19: 1091– 4 21723402 PMC4500043
  66. [71]Valdes AM Loughlin J Oene MV Sex and ethnic differences in the association of ASPN, CALM1, COL2A1, COMP, and FRZB with genetic susceptibility to osteoarthritis of the knee. Arthritis Rheum 2007; 56: 137– 46 17195216
  67. [72]Zeggini E Panoutsopoulou K Southam L Identification of new susceptibility loci for osteoarthritis (arcOGEN): a genome-wide association study. Lancet 2012; 380: 815– 23 22763110 PMC3443899
  68. [73]Zhai G Wang-Sattler R Hart DJ Serum branched-chain amino acid to histidine ratio: a novel metabolomic biomarker of knee osteoarthritis. Ann Rheum Dies 2010; 69: 1227– 31 20388742
  69. [74]Adams SB Jr Setton LA Kensicki E Global metabolic profiling of human osteoarthritic synovium. Osteoarthritis Cartilage 2012; 20: 64– 7 22063369 PMC3254801
  70. [76]de Seny D Sharif M Fillet M Discovery and biochemical characterisation of four novel biomarkers for osteoarthritis. Ann Rheum Dies 2011; 70: 1144– 52 21362709
  71. [77]Onnerfjord P Khabut A Reinholt FP Quantitative proteomic analysis of eight cartilaginous tissues reveals characteristic differences as well as similarities between subgroups. J Biol Chem 2012; 287: 18913– 24 22493511 PMC3365926
  72. [78]Castro-Perez JM Kamphorst J Degroot J Comprehensive LC-MS E lipidomic analysis using a shotgun approach and its application to biomarker detection and identification in osteoarthritis patients. J Proteome Res 2010; 9: 2377– 89 20355720
  73. [79]Gobezie R Kho A Krastins B High abundance synovial fluid proteome: distinct profiles in health and osteoarthritis. Arthritis Res Ther 2007; 9: R36 17407561 PMC1906814
  74. [80]Ritter SY Subbaiah R Bebek G Proteomic analysis of synovial fluid from the osteoarthritic knee: comparison with transcriptome analyses of joint tissues. Arthritis Rheum 2013; 65: 981– 92 23400684 PMC3618606
  75. [81]Hunter DJ Nevitt M Losina E Biomarkers for osteoarthritis: current position and steps towards further validation. Rheum Dies Clin North Am 2013 In press PMC4010869 24792945
  76. [82]Charni-Ben TN Desmarais S Bay-Jensen AC The type II collagen fragments Helix-II and CTX-II reveal different enzymatic pathways of human cartilage collagen degradation. Osteoarthritis Cartilage 2008; 16: 1183– 91 18403221
  77. [83]Manno RL Bingham CO III Paternotte S OARSI-OMERACT initiative: defining thresholds for symptomatic severity and structural changes in disease modifying osteoarthritis drug (DMOAD) clinical trials. Osteoarthritis Cartilage 2012; 20: 93– 101 22178465 PMC4375956
  78. [84]van Spil WE Jansen NW Bijlsma JW Clusters within a wide spectrum of biochemical markers for osteoarthritis: data from CHECK, a large cohort of individuals with very early symptomatic osteoarthritis. Osteoarthritis Cartilage 2012; 20: 745– 54 22503811
  79. [85]Bos SD Beekman M Maier AB Metabolic health in families enriched for longevity is associated with low prevalence of hand osteoarthritis and influences OA biomarker profiles. Ann Rheum Dis 2013; 72: 1669 74 23104762

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Authors
Lotz, M., Martel-Pelletier, J., Christiansen, C., Brandi, M.-L., Bruyère, O., Chapurlat, R., Collette, J., Cooper, C., Giacovelli, G., Kanis, J. A., Karsdal, M. A., Kraus, V, Lems, W. F., Meulenbelt, I., Pelletier, J.-P., Raynauld, J.-P., Reiter-Niesert, S., Rizzoli, R., Sandell, L. J., Van Spil, W. E., & Reginster, J.-Y.
Affiliations
  • Scripps Research Institute (US)
  • Nordic Bioscience (Denmark) (DK)
  • University of Florence (IT)
  • University of Liège (BE)
  • Inserm (FR)
  • University of Oxford (GB)
  • Duke University (US)
  • Amsterdam UMC Location Vrije Universiteit Amsterdam (NL)
  • Leiden University Medical Center (NL)
  • Université de Montréal (CA)
  • Federal Institute for Drugs and Medical Devices (DE)
  • University of Geneva (CH)
  • Washington University in St. Louis (US)
Corresponding author
Lotz, M
Venue
Annals of the Rheumatic Diseases
Publisher
Elsevier BV
Published
2013-11
Volume
72
Issue
11
Pages
1756-1763
ISSN
0003-4967 (ISSN-L)
OpenAlex
W2128468094
Cited by
328
References
3
Citations by year
2026: 9 · 2025: 21 · 2024: 18 · 2023: 27 · 2022: 18 · 2021: 20 · 2020: 27 · 2019: 16 · 2018: 31 · 2017: 42 · 2016: 37 · 2015: 44 · 2014: 17 · 2013: 1
FWCI
27.00
Type
journal article
Language
en
Update notices
erratum (2017-09-01)
Open access
Locations
  • Annals of the Rheumatic Diseases (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • Archive ouverte UNIGE (University of Geneva) (publishedVersion, other-oa)
  • Research Bank (Australian Catholic University) (submittedVersion, cc-by-nc)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • ePrints Soton (University of Southampton) (submittedVersion)
  • Florence Research (University of Florence) (submittedVersion)
  • Open Repository and Bibliography (University of Liège) (submittedVersion)
  • Archive ouverte UNIGE (University of Geneva) (submittedVersion, cc-by)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Funders
  • National Institute for Health and Care Research (NF-SI-0508-10082)
  • Medical Research Council (MC_UU_12011/1)
Topics
  • Health Sciences › Medicine › Rheumatology › Osteoarthritis Treatment and Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Proteoglycans and glycosaminoglycans research
  • Health Sciences › Medicine › Pharmacology › Musculoskeletal pain and rehabilitation
Keywords
osteoarthritis, biomarkers, collagen metabolism, non-collagenous proteins, synovitis, fibrosis, cartilage oligomeric matrix protein, disease progression, prognosis, surrogate endpoints, biomarker panel, imaging biomarkers, drug development
MeSH terms
Cartilage, Articular, Humans, Osteoarthritis, Synovial Membrane, Biomarkers, Disease Progression

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