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de Jong, A.J. (author), Klein-Wietinga, I.R. (author), Andersen, S.N. (author), Kwekkeboom, J.C. (author), Herb-van Toorn, L. (author), de Lange-Brokaar, B.J.E. (author), van Delft, D. (author), Garcia, J. (author), Wei, W. (author), van der Heide, H.J.L. (author), Bastiaanen-Jenniskens, Y.M. (author), van Osch, G.J.V.M. (author), Zuurmond, A.M. (author), Stojanovic-Susulic, V. (author), Nelissen, R.G. (author), Toes, R.E.M. (author), Kloppenburg, M. (author), Ioan-Facsinay, A. (author)Background. Obesity is associated with the development and progression of osteoarthritis (OA). Although the infrapatellar fat pad (IFP) could be involved in this association, due to its intracapsular localization in the knee joint, there is currently little known about the effect of obesity on the IFP. Therefore, we investigated cellular and...article 2017
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de Lange-Brokaar, B.J.E. (author), Bijsterbosch, J. (author), Kornaat, P.R. (author), Yusuf, E. (author), Ioan-Facsinay, A. (author), Zuurmond, A.M. (author), Kroon, H.M. (author), Meulenbelt, I. (author), Bloem, J.L. (author), Kloppenburg, M. (author)Objective: To investigate patterns of MRI abnormalities in the patellofemoral (PFJ) and tibiofemoral joint (TFJ) and their association with radiographic progression, using hypothesis free analyses. Design: 205 patients from the GARP study with symptomatic OA at multiple sites (mean age 60 years, 80% woman, median BMI 26 kg/m2), underwent knee...article 2016
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de Lange-Brokaar, B.J.E. (author), Ioan-Facsinay, A. (author), Yusuf, E. (author), Kroon, H.M. (author), Zuurmond, A.M. (author), Stojanovic-Susulic, V. (author), Nelissen, R.G. (author), Bloem, J.L. (author), Kloppenburg, M. (author)Objective: To investigate the course of synovitis on contrast-enhanced magnetic resonance images (CE-MRI) in osteoarthritic knees over 2 years, and its association with pain and cartilage deterioration. Design: Consecutive patients (n = 39, mean age 61 years, 79% woman, median (range) body mass index (BMI) 29 (24-48) kg/mm2) with clinical...article 2016
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Klein-Wieringa, I.R. (author), de Lange-Brokaar, B.J. (author), Yusuf, E. (author), Andersen, S.N. (author), Kwekkeboom, J.C. (author), Kroon, H.M. (author), van Osch, G.J. (author), Zuurmond, A.M. (author), Stojanovic-Susulic, V. (author), Nelissen, R.G. (author), Toes, R.E. (author), Kloppenburg, M. (author), Ioan-Facsinay, A. (author)Objective: To get a better understanding of inflammatory pathways active in the osteoarthritic (OA) joint, we characterized and compared inflammatory cells in the synovium and the infrapatellar fat pad (IFP) of patients with knee OA. Methods: Infiltrating immune cells were characterized by flow cytometry in 76 patients with knee OA (mean age 63...article 2016
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de Lange-Brokaar, B.J.E. (author), Ioan-Facsinay, A. (author), Yusuf, E. (author), Visser, A.W. (author), Kroon, H.M. (author), van Osch, G.J.V.M. (author), Zuurmond, A.M. (author), Stojanovic-Susulic, V. (author), Bloem, J.L. (author), Nelissen, R.G.H.H. (author), Huizinga, T.W. (author), Kloppenburg, M. (author)Objective To determine possible patterns of synovitis on contrast-enhanced magnetic resonance imaging (CE-MRI) and its relation to pain and severity in patients with radiographic knee osteoarthritis (OA). Methods In total, 86 patients (mean age 62 years, 66% women, median body mass index 29 kg/m2) with symptomatic knee OA (Kellgren/Lawrence...article 2015
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de Lange-Brokaar, B.J.E. (author), Ioan-Facsinay, A. (author), Yusuf, E. (author), Visser, A.W. (author), Kroon, H.M. (author), Andersen, S.N. (author), Herb-van Toorn, L. (author), van Osch, G.J.V.M. (author), Zuurmond, A.M. (author), Stojanovic-Susulic, V. (author), Bloem, J.L. (author), Nelissen, R.G.H.H. (author), Huizinga, T.W.J. (author), Kloppenburg, M. (author)Objective: To evaluate the association between synovitis on contrast enhanced (CE) MRI with microscopic and macroscopic features of synovial tissue inflammation. Method: Forty-one patients (mean age 60 years, 61% women) with symptomatic radiographic knee OA were studied: twenty underwent arthroscopy (macroscopic features were scored (0-4),...article 2014
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Wei, W. (author), Clockaerts, S. (author), Bastiaansen-Jenniskens, Y.M. (author), Gierman, L.M. (author), Botter, S.M. (author), Bierma-Zeinstra, S.M.A. (author), Weinans, H. (author), Verhaar, J.A.N. (author), Kloppenburg, M. (author), Zuurmond, A.M. (author), van Osch, G.J.V.M. (author)Objective: Since statins and fibrates are capable of improving the metabolic profile of patients as well as decreasing inflammation, they are considered as potential drugs for preventing osteoarthritis (OA). The goal of the present study was to investigate the effect of these drugs in the STR/Ort spontaneous OA mouse model. Design: Male STR/Ort...article 2014
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Gierman, L.M. (author), Kühnast, S. (author), Koudijs, A. (author), Pieterman, E.J. (author), Kloppenburg, M. (author), van Osch, G.J.V.M. (author), Stojanovic-Susulic, V. (author), Huizinga, T.W.J. (author), Princen, H.M.G. (author), Zuurmond. A.M., (author)Objective Hypercholesterolaemia, a risk factor for atherosclerosis (ATH), has been suggested to have a role in the development of osteoarthritis (OA). To test this hypothesis, the effect of cholesterol and different cholesterol-lowering treatments on OA was investigated in a mouse model resembling human lipoprotein metabolism. Methods Female...article 2014
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Gierman, L.M. (author), Wopereis, S. (author), van El, B. (author), Verheij, E.R. (author), Werff-Van Der Vat, B.J.C. (author), Bastiaansen-Jenniskens, Y.M. (author), van Osch, G.J.V.M. (author), Kloppenburg, M. (author), Stojanovic-Susulic, V. (author), Huizinga, T.W.J. (author), Zuurmond, A.M. (author)Objective The infrapatellar fat pad (IPFP) in the knee joint is hypothesized to contribute to osteoarthritis (OA) development by the IFPF possibly by influencing inflammatory processes. Oxylipins are essential mediators in the inflammatory process. We undertook this study to investigate secretion by the IFPF of fatty acids and oxylipins derived...article 2013
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Bastiaansen-Jenniskens, Y.M. (author), Siawash, M. (author), van de Lest, C.H.A. (author), Verhaar, J.A.N. (author), Kloppenburg, M. (author), Zuurmond, A.M. (author), Stojanovic-Susulic, V. (author), van Osch, G.J.V.M. (author), Clockaerts, S. (author)Purpose: Osteoarthritis (OA) is associated with obesity in which altered fatty acid levels have been observed. We investigated whether the most common fatty acids in synovial fluid influence cartilage deterioration in OA. Design: Cartilage was obtained from OA patients undergoing total knee arthroplasty. Chondrocytes or cartilage explants were...article 2013
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Gierman, L.M. (author), van El, B. (author), van der Ham, F. (author), Koudijs, A. (author), Stoop, R. (author), Verheijen, J.H. (author), Kloppenburg, M. (author), van Osch, G.J.V.M. (author), Stojanovic-Susulic, V. (author), Huizinga, T.W.J. (author), Zuurmond, A.M. (author)Objective:Evidence is accumulating that synovial tissue plays an active role in osteoarthritis (OA), however, exact understanding of its contribution is lacking. In order to further elucidate its role in the OA process, we aimed to identify the secretion pattern of soluble mediators by synovial tissue and to assess its ability to initiate...article 2013
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Klein-Wieringa, I.R. (author), Andersen, S.N. (author), Kwekkeboom, J.C. (author), Giera, M. (author), de Lange-Brokaar, B.J. (author), van Osch, G.J. (author), Zuurmond, A.M. (author), Stojanovic-Susulic, V. (author), Nelissen, R.G. (author), Pijl, H. (author), Huizinga, T.W. (author), Kloppenburg, M. (author), Toes, R.E. (author), Ioan-Facsinay, A. (author)Previous studies have shown accumulation and an enhanced proinflammatory profile of macrophages in adipose tissue of obese mice, indicating the presence of an interaction between adipocytes and macrophages in this tissue. However, the consequences of this interaction in humans are yet incompletely understood. In this study, we explored the...article 2013
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de Lange-Brokaar, B.J.E. (author), Ioan-Facsinay, A. (author), van Osch, G.J.V.M. (author), Zuurmond, A.-M. (author), Schoones, J. (author), Toes, R.E.M. (author), Huizinga, T.W.J. (author), Kloppenburg, M. (author)Objective: Although osteoarthritis (OA) is considered a non-inflammatory condition, it is widely accepted that synovial inflammation is a feature of OA. However, the role of immune cells and their cytokines in OA is largely unknown. This narrative systematic review summarizes the knowledge of inflammatory properties, immune cells and their...article 2012
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- Gierman, L.M. (author), van der Ham, F. (author), Koudijs, A. (author), Wielinga, P.Y. (author), Kleemann, R. (author), Kooistra, T. (author), Stoop, R. (author), Kloppenburg, M. (author), van Osch, G.J.V.M. (author), Stojanovic-Susulic, V. (author), Huizinga, T.W. (author), Zuurmond, A.M. (author) article 2012
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Bastiaansen-Jenniskens, Y.M. (author), Clockaerts, S. (author), Feijt, C. (author), Zuurmond, A.M. (author), Stojanovic-Susulic, V. (author), Bridts, C. (author), de Clerck, L. (author), de Groot, J. (author), Verhaar, J.A.N. (author), Kloppenburg, M. (author), van Osch, G.J.V.M. (author)Objective: Adipose tissue is known to release inflammatory cytokines and growth factors. In this exploratory study, the authors examined whether the infrapatellar fat pad (IPFP) closely located to cartilage in the knee joint can affect cartilage metabolism. In addition, the authors analysed whether the macrophage types present in IPFP could...article 2012
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Clockaerts, S. (author), Bastiaansen-Jenniskens, Y.M. (author), Feijt, C. (author), Clerck, L.de (author), Verhaar, J.A.N. (author), Zuurmond, A.M. (author), Stojanovic-Susulic, V. (author), Somville, J. (author), Kloppenburg, M. (author), van Osch, G.J.V.M. (author)Background: Infrapatellar fat pad (IPFP) might be involved in osteoarthritis (OA) by production of cytokines. It was hypothesised that production of cytokines is sensitive to environmental conditions. Objectives: To evaluate cytokine production by IPFP in response to interleukin (IL)1β and investigate the ability to modulate this response with...article 2012
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Klein-Wieringa, I.R. (author), Kloppenburg, M. (author), Bastiaansen-Jenniskens, Y.M. (author), Yusuf, E. (author), Kwekkeboom, J.C. (author), El-Bannoudi, H. (author), Nelissen, R.G.H.H. (author), Zuurmond, A. (author), Stojanovic-Susulic, V. (author), van Osch, G.J.V.M. (author), Toes, R.E.M. (author), Ioan-Facsinay, A. (author)Objectives: Obesity is a risk factor for the development of osteoarthritis (OA) in hands and knees. Adipose tissue can secrete different adipokines with powerful immunomodulatory effects. The infrapatellar fat pad (IFP) is an intra-articular organ in the vicinity of the synovium and cartilage. It is hypothesised that IFP-derived soluble factors...article 2011
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TNO Kwaliteit van Leven (author), Yusuf, E. (author), Nelissen, R.G. (author), Ioan-Facsinay, A. (author), Stojanovic-Susulic, V. (author), de Groot, J. (author), van Osch, G. (author), Middeldorp, S. (author), Huizinga, T.W.J. (author), Kloppenburg, M. (author)Objective: To investigate the association between weight or body mass index (BMI) and the development of hand osteoarthritis. Methods: Systematic review of observational studies. Medical databases were searched up to April 2008. Articles that presented data on the association between weight and hand osteoarthritis were selected. The qualities of...article 2010
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Meulenbelt, I. (author), Kloppenburg, M. (author), Kroon, H.M. (author), Houwing-Duistermaat, J.J. (author), Garnero, P. (author), Hellio-Le Graverand, M.-P. (author), de Groot, J. (author), Slagboom, P.E. (author), TNO Kwaliteit van Leven (author)Objective: To assess the relationship of biochemical markers and radiographic signs of osteoarthritis (ROA) in the subjects with symptomatic osteoarthritis (OA) at multiple sites of the Genetics osteoARthritis and Progression (GARP) study. Methods: We have measured eight biochemical markers, representing tissue turnover of cartilage, bone,...article 2007
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TNO Kwaliteit van Leven (author), Meulenbelt, I. (author), Kloppenburg, M. (author), Kroon, H.M. (author), Houwing-Duistermaat, J.J. (author), Garnero, P. (author), Hellio Le Graverand, M.P. (author), de Groot, J. (author), Slagboom, P.E. (author)Objective: To assess the relation between the urinary concentrations of type II collagen C-telopeptide (UCTX-II) and radiographie signs of osteoarthritis (ROA) in the GARP (Genetics, Arthrosis and Progression) study. Methods: UCTX-II levels were measured in GARP study participants, who are sibling pairs predominantly with symptomatic...article 2006