Background: Osteoarthritis (OA) is a disease with multiple endotypes. A hallmark of OA is loss of cartilage; however, it is evident that the rate of cartilage loss differs among patients, which may partly be attributed to differential capacity for cartilage repair. We hypothesize that a low cartilag...
September 24, 2021
Journal:
J Orthop Traumatol
Author:
Luo Y, Samuels J, Krasnokutsky S, Byrjalsen I, Kraus VB, He Y, Karsdal MA, Abramson SB, Attur M, Bay-Jensen AC
Objective: The purpose of this overview of osteoarthritis (OA) biomarkers is to provide the non-specialist with a toolbox, based on experience acquired by biomarker researchers over many years, to understand biomarkers in general and their use in the OA field. Methods: We provide an update on this ...
Objective: To investigate acute changes in biochemical markers of cartilage turnover in response to moderate intensity exercise with and without joint impact in humans with knee osteoarthritis. Design: We conducted a randomized, cross-over, exploratory clinical study. Twenty subjects with knee osteo...
July 29, 2021
Journal:
Osteoarthritis Cartilage
Author:
Bjerre-Bastos JJ, Andersen JR, Karsdal MA, Bay-Jensen AC, Mackey AL, Byrjalsen I, Bihlet AR, Boesen MP, Nielsen Bay H
Objective: Links between pain and joint degradation are poorly understood. We investigated the role of activation of Toll-like receptors (TLR) by cartilage metabolites in initiating and maintaining the inflammatory loop in OA causing joint destruction. Methods: Synovial membrane explants (SMEs) wer...
November 14, 2019
Journal:
Osteoarthritis Cartilage
Author:
Sharma N, Kayed A, Chen Z, Kjelgaard-Petersen CF, Gantzel T, Karsdal MA, Ladel C, Bay-Jensen AC, Lindemann S, Thudium CS, Michaelis M, Drobinski PJ
OBJECTIVES: Pain and disability are the main clinical manifestations of osteoarthritis, for which only symptomatic therapies are available. Hence, there is a need for therapies that can simultaneously alter disease progression and provide pain relief. KBP is a dual amylin- and calcitonin-receptor ag...
June 5, 2019
Journal:
Osteoarthritis Cartilage
Author:
Katri A, Dabrowska A, Karsdal MA, Andreassen KV, Thudium CS, Henriksen K, Löfvall H
OBJECTIVE: Phenotypic changes of chondrocytes toward hypertrophy might be fundamental in the pathogenesis of OA, of which type X collagen (Col10) is a well-known marker. The purpose was to develop a specific immunoassay for blood quantification of a newly identified neo-epitope of type X collagen to...
January 14, 2019
Journal:
Osteoarthritis Cartilage
Author:
He Y, Manon-Jensen T, Arendt-Nielsen L, Petersen KK, Christiansen T, Samuels J, Karsdal MA, Attur M, Bay-Jensen AC, Abramson SB
There is a need for efficacious and safe pain treatments for OA (osteoarthritis). The nerve growth factor (NGF) antibody tanezumab is associated with high efficacy, but when combined with chronic NSAID treatment shows an increased risk of rapidly progressive osteoarthritis (RPOA) in a small group of...
December 18, 2018
Journal:
Osteoarthritis Cartilage
Author:
Karsdal MA, Verburg KM, West CR, Bay-Jensen AC
OBJECTIVE: A hallmark of osteoarthritis (OA) is degradation of articular cartilage proteoglycans. In isolated human OA chondrocytes, the anti-inflammatory cytokine Interleukin-37 (IL-37) lowers the expression of the proteolytic MMP and ADAMTS enzymes, which mediate this degradation. Therefore, we in...
September 7, 2018
Journal:
Osteoarthritis Cartilage
Author:
Van Geffen EW, Van Caam APM, Van de Loo FA, Van Lent PLEM, Koenders MI, Thudium CS, Bay-Jensen AC, Blaney Davidson EN, Van der Kraan PM
OBJECTIVE: To investigate the safety, tolerability, pharmacokinetics, and pharmacodynamics of ABT-981, a human dual variable domain immunoglobulin simultaneously targeting interleukin (IL)-1α and IL-1β, in patients with knee osteoarthritis (OA). METHOD: This was a randomized, double-blind, placebo-...
September 28, 2017
Journal:
Osteoarthritis Cartilage
Author:
Wang SX, Abramson SB, Attur M, Karsdal MA, Preston RA, Lozada CJ, Kosloski MP, Hong F, Jiang P, Saltarelli MJ, Hendrickson BA, Medema JK
OBJECTIVE: Knee osteoarthritis (OA) is among the higher contributors to global disability. Despite its high prevalence, currently, there is no cure for this disease. Furthermore, the available diagnostic approaches have large precision errors and low sensitivity. Therefore, there is a need for new b...
September 9, 2017
Journal:
Osteoarthritis Cartilage
Author:
Bacardit J, Henrotin Y, Thudium CS, Bay-Jensen AC, Runhaar J, Lazzarini N, Bierma-Zeinstra SM
OBJECTIVE: Fibroblast growth factor (FGF) 18 has been shown to increase cartilage volume when injected intra-articularly in animal models of osteoarthritis (OA) and in patients with knee OA (during clinical development of the recombinant human FGF18, sprifermin). However, the exact nature of this ef...
August 18, 2017
Journal:
Osteoarthritis Cartilage
Author:
Gigout A, Guehring H, Froemel D, Meurer A, Ladel C, Reker D, Bay-Jensen AC, Karsdal MA, Lindemann S
OBJECTIVE: To examine the effects of dietary weight loss, with and without exercise, on selected soluble biomarkers in overweight and obese older adults with symptomatic knee osteoarthritis (OA). DESIGN: Blood samples were analyzed from 429 participants in the Intensive Diet and Exercise for Arthri...
July 27, 2017
Journal:
Osteoarthritis Cartilage
Author:
Loeser RF, Beavers DP, Bay-Jensen AC, Karsdal MA, Nicklas BJ, Guermazi A, Hunter DJ, Messier SP
The extracellular matrix (ECM) of articular cartilage is comprised of complex networks of proteins and glycoproteins, all of which are expressed by its resident cell, the chondrocyte. Cartilage is a unique tissue given its complexity and ability to resist repeated load and deformation. The mechanism...
February 20, 2017
Journal:
Osteoarthritis Cartilage
Author:
Sanchez C, Bay-Jensen AC, Pap T, Dvir-Ginzberg M, Barrett-Jolley R, Mobasheri A, Henrotin Y, Quasnichka HL
Objective: Establish a biomarker panel associated with all-cause total joint replacement (TJR) through identification of patients with osteoarthritis (OA) who do or do not progress to TJR and investigate effects of nonsteroidal anti-inflammatory drugs (NSAIDs). Design: Serum samples from patients e...
January 20, 2017
Journal:
Osteoarthritis Cartilage
Author:
Arends RH, Karsdal MA, Verburg KM, West CR, Bay-Jensen AC, Keller DS
PURPOSE: The aim of this \"Year in Review\" article is to summarize and discuss the implications of biochemical marker related articles published between the Osteoarthritis Research Society International (OARSI) 2015 Congress in Seattle and the OARSI 2016 Congress in Amsterdam. METHODS: The PubMed/...
January 16, 2017
Journal:
Osteoarthritis Cartilage
Author:
Mobasheri A, Bay-Jensen AC, Van Spil WE, Larkin J, Levesque MC
OBJECTIVES: To investigate the association between magnetic resonance imaging (MRI), macroscopic and histological assessments of synovitis in end-stage knee osteoarthritis (KOA). METHODS: Synovitis of end-stage osteoarthritic knees was assessed using non-contrast-enhanced (CE), contrast-enhanced ma...
October 11, 2016
Journal:
Osteoarthritis Cartilage
Author:
Riis RG, Gudbergsen H, Simonsen O, Henriksen M, Al-Mashkur N, Eld M, Petersen KK, Kubassova O, Bay Jensen AC, Damm J, Bliddal H, Arendt-Nielsen L, Boesen MP
Osteoarthritis (OA) is the biggest unmet medical need among the many musculoskeletal conditions and the most common form of arthritis. It is a major cause of disability and impaired quality of life in the elderly. We review several ambitious but failed attempts to develop joint structure-modifying t...
August 2, 2016
Journal:
Osteoarthritis Cartilage
Author:
Karsdal MA, Michaelis M, Ladel C, Siebuhr AS, Bihlet AR, Andersen JR, Guehring H, Christiansen C, Bay-Jensen AC, Kraus VB
Osteoarthritis (OA) is a heterogeneous disorder. The goals of this review are (1) To stimulate use of standardized nomenclature for OA that could serve as building blocks for describing OA and defining OA phenotypes, in short to provide unifying disease concepts for a heterogeneous disorder; and (2)...
August 1, 2015
Journal:
Osteoarthritis Cartilage
Author:
Kraus VB, Blanco FJ, Englund M, Karsdal MA, Lohmander LS
Background/purpose: The aim of this study was to identify key characteristics of disease progression through investigation of the association of radiographic progression over two years with baseline Joint Space Width (JSW), Kellgren-Lawrence (KL) grade, Western Ontario and McMaster Universities Arth...
April 1, 2015
Journal:
Osteoarthritis Cartilage
Author:
Karsdal MA, Bihlet AR, Byrjalsen I, Alexandersen P, Ladel C, Andersen JR, Riis BJ, Kraus VB, Bay-Jensen AC, Christiansen C, Michaelis M
Objectives: To assess associations between uCTX-II or uCIIM and severity of hip pain in patients with mild-moderate hip osteoarthritis (OA) over a 2-year period, and establish whether the level of these biomarkers at baseline could estimate a specific trajectory of hip pain. Design: A cohort study ...
January 1, 2015
Journal:
Osteoarthritis Cartilage
Author:
Dorleijn DM, Luijsterburg PA, Bay-Jensen AC, Siebuhr AS, Karsdal MA, Rozendaal RM, Bos PK, Bierma-Zeinstra SM
Purpose: To evaluate the structure-modifying and symptom efficacy, as well as safety and tolerability of oral salmon calcitonin (sCT) formulated with a 5-CNAC carrier (a molecule based on Eligen(®) technology), in osteoarthritis (OA) patients with moderate to severe knee pain and joint structural da...
January 1, 2015
Journal:
Osteoarthritis Cartilage
Author:
Karsdal MA, Byrjalsen I, Alexandersen P, Bihlet AR, Andersen JR, Riis BJ, Bay-Jensen AC, Christiansen C
Objective: To evaluate the role of three cartilage-derived biomarkers on osteoarthritis (OA): urinary C-terminal telopeptide (uCTX-II), serum cartilage oligomeric protein (sCOMP), and serum MMP degraded type II collagen (sC2M). Subjects and methods: Samples from 3582 individuals from the Rotterdam ...
May 22, 2014
Journal:
Osteoarthritis Cartilage
Author:
Meulenbelt I, Chassaing E, Arden NK, Bierma-Zeinstra SM, Hart D, Hofman A, Karsdal MA, Kloppenburg M, Kroon HM, Slagboom PE, Spector TD, Uitterlinden AG, van Meurs JB, Bay-Jensen AC, Valdes AM
Objectives: Osteoarthritis (OA) is a degenerative disease with a subset of patients experiencing joint inflammation, but C-reactive protein (CRP) has shown limited use in OA as a diagnostic marker. The aim was to identify subpopulations of patients with high or low levels of acute (high sensitive CR...
January 7, 2014
Journal:
Osteoarthritis Cartilage
Author:
Siebuhr AS, Petersen KK, Arendt-Nielsen L, Egsgaard LL, Christiansen C, Simonsen O, Hoeck HC, Karsdal MA, Eskehave TN
Background: The aim of this study was to investigate the pharmacokinetic and pharmacodynamic parameters of oral salmon calcitonin (oSCT) administered over 14 days to men and women presenting with osteoarthritis (OA). Materials and methods: The study was a phase-I, 2-week, placebo-controlled, double...
February 18, 2010
Journal:
Osteoarthritis Cartilage
Author:
Karsdal MA, Byrjalsen I, Henriksen K, Riis BJ, Lau EM, Arnold M, Christiansen C
OBJECTIVE:Osteoarthritis (OA) is the most common form of arthritic disease, and it is a major cause of disability and impaired quality of life in the elderly. OA is a complex disease of the entire joint, including bone and cartilage, thereby presenting alternative approaches for treatment. This revi...
June 16, 2008
Journal:
Osteoarthritis Cartilage
Author:
Karsdal MA, Leeming DJ, Dam EB, Henriksen K, Alexandersen P, Pastoureau P, Altman RD, Christiansen C
OBJECTIVE: Cartilage loss as determined either by magnetic resonance imaging (MRI) or by joint space narrowing in X-rays is the result of cartilage erosion. However, metabolic processes within the cartilage that later result in cartilage loss may be a more accurate assessment method for early change...
May 10, 2007
Journal:
Osteoarthritis Cartilage
Author:
Qazi AA, Folkesson J, Karsdal MA, Christiansen C, Dam EB
The aim of the present study was to investigate collagen metabolism after anabolic and catabolic stimulation of chondrocytes ex vivo. DESIGN: Metabolic activities in ex vivo bovine cartilage explants were stimulated with insulin-like growth factor I (IGF-I) or a combination of tumor necrosis factor...
March 15, 2007
Journal:
Osteoarthritis Cartilage
Author:
Olsen AK, Sondergaard BC, Byrjalsen I, Tankó LB, Christiansen C, Müller A, Hein GE, Karsdal MA, Qvist P
Aggrecan is the major proteoglycan in articular cartilage and is known to be degraded by various proteases, including matrix metalloproteinases (MMPs). The present study was undertaken to develop immunoassays detecting aggrecan and its fragments generated by MMP and non-MMP-mediated proteolysis. ME...
February 15, 2007
Journal:
Osteoarthritis Cartilage
Author:
Sumer EU, Sondergaard BC, Rousseau JC, Delmas PD, Fosang AJ, Karsdal MA, Christiansen C, Qvist P
OBJECTIVE: Osteoarthritis (OA) is the most common form of degenerative joint diseases and a major cause of disability and impaired quality of life in the elderly. Recent observations suggest that calcitonin may act on both osteoclasts and chondrocytes. The present review was sought to summarize emer...
July 14, 2006
Journal:
Osteoarthritis Cartilage
Author:
Karsdal MA, Tankó LB, Riis BJ, Sondergaard BC, Henriksen K, Altman RD, Qvist P, Christiansen C
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