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Ge L, Zhang X, Zhu R, Cai G. Bone marrow lesions in osteoarthritis: biomarker or treatment target? A narrative review. Skeletal Radiol 2024:10.1007/s00256-024-04725-0. [PMID: 38877110 DOI: 10.1007/s00256-024-04725-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 06/05/2024] [Accepted: 06/05/2024] [Indexed: 06/16/2024]
Abstract
Osteoarthritis (OA) is a leading cause of pain, functional impairment, and disability in older adults. However, there are no effective treatments to delay and reverse OA. Magnetic resonance imaging (MRI) can assess structural abnormalities of OA by directly visualizing damage and inflammatory reactions within the tissues and detecting abnormal signals in the subchondral bone marrow region. While some studies have shown that bone marrow lesions (BMLs) are one of the early signs of the development of OA and predict structural and symptomatic progression of OA, others claimed that BMLs are prevalent in the general population and have no role in the progression of OA. In this narrative review, we screened and summarized studies with different designs that evaluated the association of BMLs with joint symptoms and structural abnormalities of OA. We also discussed whether BMLs may serve as an imaging biomarker and a treatment target for OA based on existing clinical trials.
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Affiliation(s)
- Liru Ge
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Xiaoyue Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Rui Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Guoqi Cai
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China.
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, 7000, Australia.
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Lin L, Zhang J, Zhu H, Wang Z, Liu X, Xu Y, Fang Y, Lin Z, Zheng Y. Bone marrow lesion and 5-year incident joint surgery in patients with knee osteoarthritis: a retrospective cohort study. J Orthop Surg Res 2024; 19:305. [PMID: 38769508 PMCID: PMC11107017 DOI: 10.1186/s13018-024-04705-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 03/26/2024] [Indexed: 05/22/2024] Open
Abstract
BACKGROUND It is beneficial for society to discover the risk factors associated with surgery and to carry out some early interventions for patients with these risk factors. Few studies specifically explored the relationship between bone marrow lesions (BMLs) and long-term incident joint surgery. OBJECTIVE To investigate the association between BML severity observed in knee osteoarthritis (OA) patients' first MRI examination and incident knee surgery within 5 years. Additionally, to assess the predictive value of BMLs for the incident knee surgery. DESIGN Retrospective cohort study. METHODS We identified patients diagnosed with knee OA and treated at our institution between January 2015 and January 2018, and retrieved their baseline clinical data and first MRI examination films from the information system. Next, we proceeded to determine the Max BML grades, BML burden grades and Presence BML grades for the medial, lateral, patellofemoral, and total compartments, respectively. Multi-variable logistic regression models examined the association of the BML grades with 5-year incident knee surgery. Positive and negative predictive values (PPVs and NPVs) were determined for BML grades referring to 5-year incident knee surgery. RESULTS Totally, 1011 participants (knees) were found eligible to form the study population. Within the 5 years, surgery was performed on 74 knees. Max BML grade 2 and grade 3 of medial, patellofemoral and total compartments were strongly and significantly associated with incident surgery. None of the BML grades from lateral compartment was associated with incident surgery. The PPV was low and NPV was high for BMLs. CONCLUSIONS BMLs found in the first MRI examination were associated with 5-year incident joint surgery, except for those allocated in lateral compartments. The high NPVs imply that patients without BMLs have a low risk of requiring surgery within 5 years.
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Affiliation(s)
- Liang Lin
- Department of Orthopedics, Jinjiang Municipal Hospital, Fujian, China
- Clinical Research Center for Orthopaedic Trauma and Reconstruction of Fujian Province, Jinjiang Municipal Hospital, Fujian, China
| | - Jinshan Zhang
- Department of Orthopedics, Jinjiang Municipal Hospital, Fujian, China.
- Clinical Research Center for Orthopaedic Trauma and Reconstruction of Fujian Province, Jinjiang Municipal Hospital, Fujian, China.
| | - Hongyi Zhu
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
- Institute of Clinical Research, National Center for Orthopaedics, Shanghai Sixth People's Hospital, Shanghai, China
| | - Zefeng Wang
- Department of Orthopedics, Jinjiang Municipal Hospital, Fujian, China
- Clinical Research Center for Orthopaedic Trauma and Reconstruction of Fujian Province, Jinjiang Municipal Hospital, Fujian, China
| | - Xiaofeng Liu
- Department of Orthopedics, Jinjiang Municipal Hospital, Fujian, China
- Clinical Research Center for Orthopaedic Trauma and Reconstruction of Fujian Province, Jinjiang Municipal Hospital, Fujian, China
| | - Yongquan Xu
- Department of Orthopedics, Jinjiang Municipal Hospital, Fujian, China
- Clinical Research Center for Orthopaedic Trauma and Reconstruction of Fujian Province, Jinjiang Municipal Hospital, Fujian, China
| | - Yangzhen Fang
- Department of Orthopedics, Jinjiang Municipal Hospital, Fujian, China
- Clinical Research Center for Orthopaedic Trauma and Reconstruction of Fujian Province, Jinjiang Municipal Hospital, Fujian, China
| | - Zhenyu Lin
- Department of Orthopedics, Jinjiang Municipal Hospital, Fujian, China
- Clinical Research Center for Orthopaedic Trauma and Reconstruction of Fujian Province, Jinjiang Municipal Hospital, Fujian, China
| | - Yongqiang Zheng
- Department of Orthopedics, Jinjiang Municipal Hospital, Fujian, China
- Clinical Research Center for Orthopaedic Trauma and Reconstruction of Fujian Province, Jinjiang Municipal Hospital, Fujian, China
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Sun Q, Liu F, Fang J, Lian Q, Hu Y, Nan X, Tian FM, Zhang G, Qi D, Zhang L, Zhang J, Luo Y, Zhang Z, Zhou Z. Strontium ranelate retards disc degradation and improves endplate and bone micro-architecture in ovariectomized rats with lumbar fusion induced - Adjacent segment disc degeneration. Bone Rep 2024; 20:101744. [PMID: 38404727 PMCID: PMC10884424 DOI: 10.1016/j.bonr.2024.101744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 02/02/2024] [Accepted: 02/12/2024] [Indexed: 02/27/2024] Open
Abstract
Objectives Adjacent segment disc degeneration (ASDD) is one of the long-term sequelae of spinal fusion, which is more susceptible with osteoporosis. As an anti-osteoporosis drug, strontium ranelate (SR) has been reported to not only regulate bone metabolism but also cartilage matrix formation. However, it is not yet clear whether SR has a reversal or delaying effect on fusion-induced ASDD in a model of osteoporosis. Materials and methods Fifth three-month-old female Sprague-Dawley rats that underwent L4-L5 posterolateral lumbar fusion (PLF) with spinous-process wire fixation 4 weeks after bilateral ovariectomy (OVX) surgery. Animals were administered vehicle (V) or SR (900 mg/kg/d) orally for 12 weeks post-PLF as follows: Sham+V, OVX + V, PLF + V, OVX + PLF + V, and OVX + PLF + SR. Manual palpation and X-ray were used to evaluate the state of lumbar fusion. Adjacent-segment disc was assessed by histological (VG staining and Scoring), histomorphometry (Disc Height, MVD, Calcification rate and Vascular Bud rate), immunohistochemical (Col-II, Aggrecan, MMP-13, ADAMTS-4 and Caspase-3), and mRNA analysis (Col-I, Col-II, Aggrecan, MMP-13 and ADAMTS-4). Adjacent L6 vertebrae microstructures were evaluated by microcomputed tomography. Results Manual palpation and radiographs showed clear evidence of the fused segment's immobility. After 12 weeks of PLF surgery, a fusion-induced ASDD model was established. Low bone mass caused by ovariectomy can significantly exacerbate ASDD progression. SR exerted a protective effect on adjacent segment intervertebral disc with the underlying mechanism possibly being associated with preserving bone mass to prevent spinal instability, maintaining the functional integrity of endplate vascular microstructure, and regulating matrix metabolism in the nucleus pulposus and annulus fibrosus. Discussion Anti-osteoporosis medication SR treatments not only maintain bone mass and prevent fractures, but early intervention could also potentially delay degenerative conditions linked to osteoporosis. Taken together, our results suggested that SR might be a promising approach for the intervention of fusion-induced ASDD with osteoporosis.
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Affiliation(s)
- Qi Sun
- Department of Orthopedic Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, People's Republic of China
| | - Fang Liu
- Medical Research Center, North China University of Science and Technology, Tangshan, People's Republic of China
| | - Jiakang Fang
- Department of Orthopedic Surgery, The Affiliated Hospital of North China University of Science and Technology, Tangshan, People's Republic of China
| | - Qiangqiang Lian
- Department of Orthopedic Surgery, The Affiliated Hospital of North China University of Science and Technology, Tangshan, People's Republic of China
| | - Yunpeng Hu
- Department of Orthopedic Surgery, The Affiliated Hospital of North China University of Science and Technology, Tangshan, People's Republic of China
| | - Xinyu Nan
- Department of Orthopedic Surgery, The Affiliated Hospital of North China University of Science and Technology, Tangshan, People's Republic of China
| | - Fa-Ming Tian
- Medical Research Center, North China University of Science and Technology, Tangshan, People's Republic of China
| | - Guochuan Zhang
- Department of Musculoskeletal Oncology, The Third Hospital of Hebei Medical University, Shijiazhuang, People's Republic of China
| | - Dianwen Qi
- Department of Musculoskeletal Oncology, The Third Hospital of Hebei Medical University, Shijiazhuang, People's Republic of China
| | - Liu Zhang
- Department of Orthopedic Surgery, Emergency General Hospital, Beijing, People's Republic of China
| | - Jingwen Zhang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yang Luo
- Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, People's Republic of China
| | - Zuzhuo Zhang
- Department of Radiology, the Third Hospital of Hebei Medical University, Shijiazhuang, People's Republic of China
| | - Zhuang Zhou
- Department of Musculoskeletal Oncology, The Third Hospital of Hebei Medical University, Shijiazhuang, People's Republic of China
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Nhan J, Strebel N, Virah Sawmy K, Yin J, St-Pierre JP. Characterization of Calcium- and Strontium-Polyphosphate Particles Toward Drug Delivery into Articular Cartilage. Macromol Biosci 2024; 24:e2300345. [PMID: 37777870 DOI: 10.1002/mabi.202300345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/21/2023] [Indexed: 10/02/2023]
Abstract
Drug delivery into articular cartilage poses many challenges due in part to its lack of vasculature. While intra-articular injections are effective for the local administration of drugs, small molecules are rapidly cleared from the synovial fluid. As such, there is a need to develop effective drug delivery strategies to improve the residence times of bioactive molecules in the joint and elicit a sustained therapeutic effect. In this study, calcium- and strontium-polyphosphate particles are synthesized and characterized as potential drug carriers into articular cartilage. Physicochemical characterization reveals that the particles exhibit a spherical morphology, have a negative zeta potential, and are nanoscale in size. Biological characterization in chondrocytes confirms cellular uptake of the particles and demonstrates both size and concentration-dependent cytotoxicity at high concentrations. Furthermore, treatment of chondrocytes with these particles results in a reduction in cell proliferation and metabolic activity, confirming biological effects. Finally, incubation with cartilage tissue explants suggests successful uptake, despite the particles exhibiting a negative surface charge. Therefore, from the results of this study, these polyphosphate-based particles have potential as a drug carrier into articular cartilage and warrant further development.
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Affiliation(s)
- Jordan Nhan
- Department of Chemical and Biological Engineering, Faculty of Engineering, University of Ottawa, 161 Louis-Pasteur Pvt., Ottawa, Ontario, K1N 6N5, Canada
| | - Nicolas Strebel
- Department of Chemical and Biological Engineering, Faculty of Engineering, University of Ottawa, 161 Louis-Pasteur Pvt., Ottawa, Ontario, K1N 6N5, Canada
| | - Khushnouma Virah Sawmy
- Department of Chemical and Biological Engineering, Faculty of Engineering, University of Ottawa, 161 Louis-Pasteur Pvt., Ottawa, Ontario, K1N 6N5, Canada
| | - Jordan Yin
- Department of Chemical and Biological Engineering, Faculty of Engineering, University of Ottawa, 161 Louis-Pasteur Pvt., Ottawa, Ontario, K1N 6N5, Canada
| | - Jean-Philippe St-Pierre
- Department of Chemical and Biological Engineering, Faculty of Engineering, University of Ottawa, 161 Louis-Pasteur Pvt., Ottawa, Ontario, K1N 6N5, Canada
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Yu SP, Deveza LA, Kraus VB, Karsdal M, Bay-Jensen AC, Collins JE, Guermazi A, Roemer FW, Ladel C, Bhagavath V, Hunter DJ. Association of biochemical markers with bone marrow lesion changes on imaging-data from the Foundation for the National Institutes of Health Osteoarthritis Biomarkers Consortium. Arthritis Res Ther 2024; 26:30. [PMID: 38238803 PMCID: PMC10795356 DOI: 10.1186/s13075-023-03253-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 12/27/2023] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND To assess the prognostic value of short-term change in biochemical markers as it relates to bone marrow lesions (BMLs) on MRI in knee osteoarthritis (OA) over 24 months and, furthermore, to assess the relationship between biochemical markers involved with tissue turnover and inflammation and BMLs on MRI. METHODS Data from the Foundation for the National Institutes of Health OA Biomarkers Consortium within the Osteoarthritis Initiative (n = 600) was analyzed. BMLs were measured according to the MRI Osteoarthritis Knee Score (MOAKS) system (0-3), in 15 knee subregions. Serum and urinary biochemical markers assessed were as follows: serum C-terminal crosslinked telopeptide of type I collagen (CTX-I), serum crosslinked N-telopeptide of type I collagen (NTX-I), urinary CTX-Iα and CTX-Iβ, urinary NTX-I, urinary C-terminal cross-linked telopeptide of type II collagen (CTX-II), serum matrix metalloproteinase (MMP)-degraded type I, II, and III collagen (C1M, C2M, C3M), serum high sensitivity propeptide of type IIb collagen (hsPRO-C2), and matrix metalloproteinase-generated neoepitope of C-reactive protein (CRPM). The association between change in biochemical markers over 12 months and BMLs over 24 months was examined using regression models adjusted for covariates. The relationship between C1M, C2M, C3M, hsPRO-C2, and CRPM and BMLs at baseline and over 24 months was examined. RESULTS Increases in serum CTX-I and urinary CTX-Iβ over 12 months were associated with increased odds of changes in the number of subregions affected by any BML at 24 months. Increase in hsPRO-C2 was associated with decreased odds of worsening in the number of subregions affected by any BML over 24 months. C1M and C3M were associated with BMLs affected at baseline. CONCLUSIONS Short-term changes in serum CTX-I, hsPRO-C2, and urinary CTX-Iβ hold the potential to be prognostic of BML progression on MRI. The association of C1M and C3M with baseline BMLs on MRI warrants further investigation.
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Affiliation(s)
- Shirley P Yu
- Department of Rheumatology, Royal North Shore Hospital, Reserve Road, St Leonards, Sydney, NSW, 2065, Australia.
- Sydney Musculoskeletal Health, The Kolling Institute, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.
| | - Leticia A Deveza
- Department of Rheumatology, Royal North Shore Hospital, Reserve Road, St Leonards, Sydney, NSW, 2065, Australia
- Sydney Musculoskeletal Health, The Kolling Institute, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Virginia B Kraus
- Department of Medicine, Duke University School of Medicine, Durham, NC, USA
| | | | | | - Jamie E Collins
- Orthopaedic and Arthritis Centre for Outcomes Research, Brigham and Women's Hospital, Boston, MA, USA
| | - Ali Guermazi
- Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
| | - Frank W Roemer
- Chobanian & Avedisian School of Medicine, Boston University, Boston, MA, USA
- Department of Radiology, Universitätsklinikum Erlangen & Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | | | - Venkatesha Bhagavath
- Sydney Musculoskeletal Health, The Kolling Institute, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Northern Sydney Local Health District, Royal North Shore Hospital, St Leonards, Sydney, NSW, Australia
| | - David J Hunter
- Department of Rheumatology, Royal North Shore Hospital, Reserve Road, St Leonards, Sydney, NSW, 2065, Australia
- Sydney Musculoskeletal Health, The Kolling Institute, School of Medicine, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
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6
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Maksymowych WP, Jaremko JL, Pedersen SJ, Eshed I, Weber U, McReynolds A, Bird P, Wichuk S, Lambert RG. Comparative validation of the knee inflammation MRI scoring system and the MRI osteoarthritis knee score for semi-quantitative assessment of bone marrow lesions and synovitis-effusion in osteoarthritis: an international multi-reader exercise. Ther Adv Musculoskelet Dis 2023; 15:1759720X231171766. [PMID: 37457557 PMCID: PMC10345937 DOI: 10.1177/1759720x231171766] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 04/05/2023] [Indexed: 07/18/2023] Open
Abstract
Background Bone marrow lesions (BMLs) and synovitis on magnetic resonance imaging (MRI) are associated with symptoms and predict degeneration of articular cartilage in osteoarthritis (OA). Validated methods for their semiquantitative assessment on MRI are available, but they all have similar scoring designs and questionable sensitivity to change. New scoring methods with completely different designs need to be developed and compared to existing methods. Objectives To compare the performance of new web-based versions of the Knee Inflammation MRI Scoring System (KIMRISS) with the MRI OA Knee Score (MOAKS) for quantification of BMLs and synovitis-effusion (S-E). Design Retrospective follow-up cohort. Methods We designed web-based overlays outlining regions in the knee that are scored for BML in MOAKS and KIMRISS. For KIMRISS, both BML and S-E are scored on consecutive sagittal slices. The performance of these methods was compared in an international reading exercise of 8 readers evaluating 60 pairs of scans conducted 1 year apart from cases recruited to the OA Initiative (OAI) cohort. Interobserver reliability for baseline status and baseline to 1 year change in BML and S-E was assessed by intra-class correlation coefficient (ICC) and smallest detectable change (SDC). Feasibility was assessed using the System Usability Scale (SUS). Results Mean change in BML and S-E was minimal over 1 year. Pre-specified targets for acceptable reliability (ICC ⩾ 0.80 and ⩾ 0.70 for status and change scores, respectively) were achieved more frequently for KIMRISS for both BML and synovitis. Mean (95% CI) ICC for change in BML was 0.88 (0.83-0.92) and 0.69 (0.60-0.78) for KIMRISS and MOAKS, respectively. KIMRISS mean SUS usability score was 85.7 and at the 95th centile of ranking for usability versus a score of 55.4 and 20th centile for MOAKS. Conclusion KIMRISS had superior performance metrics to MOAKS for quantification of BML and S-E. Both methods should be further compared in trials of new therapies for OA.
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Affiliation(s)
| | - Jacob L. Jaremko
- Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, AB, Canada
- Medical Imaging Consultants, Edmonton, AB, Canada
| | - Susanne J. Pedersen
- Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen, Denmark
| | - Iris Eshed
- Sheba Medical Center, Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | | | - Andrew McReynolds
- Department of Radiology and Diagnostic Imaging, University of Alberta Hospital, Edmonton, AB, Canada
| | - Paul Bird
- Division of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Stephanie Wichuk
- Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Robert G. Lambert
- Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, AB, Canada
- Medical Imaging Consultants, Edmonton, AB, Canada
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Gezer HH, Ostor A. What is new in pharmacological treatment for osteoarthritis? Best Pract Res Clin Rheumatol 2023; 37:101841. [PMID: 37302928 DOI: 10.1016/j.berh.2023.101841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 05/10/2023] [Indexed: 06/13/2023]
Abstract
Osteoarthritis (OA) is a degenerative joint disease in which structural changes of hyaline articular cartilage, subchondral bone, ligaments, capsule, synovium, muscles, and periarticular changes are involved. The knee is the most commonly affected joint, followed by the hand, hip, spine, and feet. Different pathological mechanisms are at play in each of these various involvement sites. Although systemic inflammation is more prominent in hand OA, knee and hip OA have been associated with excessive joint load and injury. As OA has varied phenotypes and the primarily affected tissues differ, treatment options must be tailored accordingly. In recent years, ongoing efforts have been made to develop disease-modifying options that halt or slow disease progression. Many are still in clinical trials, and as insights into the pathogenesis of OA evolve, novel therapeutic strategies will be developed. In this chapter, we provide an overview of the novel and emerging strategies in the management of OA.
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Affiliation(s)
- Halise Hande Gezer
- Marmara University School of Medicine, PMR Department Rheumatology Division, Istanbul, Turkiye
| | - Andrew Ostor
- Cabrini Medical Centre, Monash University, Melbourne & ANU, Canberra, Australia.
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Lu H, Wei J, Liu K, Li Z, Xu T, Yang D, Gao Q, Xiang H, Li G, Chen Y. Radical-Scavenging and Subchondral Bone-Regenerating Nanomedicine for Osteoarthritis Treatment. ACS NANO 2023; 17:6131-6146. [PMID: 36920036 DOI: 10.1021/acsnano.3c01789] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Osteoarthritis (OA) is characterized by cartilage degradation and subchondral bone remodeling. However, most available studies focus on either cartilage degradation or subchondral bone lesion, alone, and rarely pay attention to the synergy of these two pathological changes. Herein, a dual-functional medication is developed to simultaneously protect cartilage and achieve subchondral bone repair. Black phosphorus nanosheets (BPNSs), with a strong reactive oxygen species (ROS)-scavenging capability and high biocompatibility, also present a notable promoting effect in osteogenesis. BPNSs efficiently eliminate the intracellular ROS and, thus, protect the inherent homeostasis between cartilage matrix anabolism and catabolism. RNA sequencing results of BPNSs-treated OA chondrocytes further reveal the restoration of chondrocyte function, activation of antioxidant enzymes, and regulation of inflammation. Additional in vivo assessments solidly confirm that BPNSs inhibit cartilage degradation and prevent OA progression. Meanwhile, histological evaluation and microcomputed tomography (micro-CT) scanning analysis verify the satisfying disease-modifying effects of BPNSs on OA. Additionally, the excellent biocompatibility of BPNSs enables them as a competitive candidate for OA treatment. This distinct disease-modifying treatment of OA on the basis of BPNSs provides an insight and paradigm on the dual-functional treatment strategy focusing on both cartilage degradation and subchondral bone lesion in OA and explores a broader biomedical application of BPNS nanomedicine in orthopedics.
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Affiliation(s)
- Hengli Lu
- Department of Orthopaedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200092, P. R. China
| | - Jihu Wei
- Department of Orthopaedics, Bengbu First People's Hospital, Bengbu, Anhui 233000, P. R. China
| | - Kaiyuan Liu
- Department of Orthopaedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200092, P. R. China
| | - Zihua Li
- Department of Orthopaedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200092, P. R. China
| | - Tianyang Xu
- Department of Orthopaedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200092, P. R. China
| | - Dong Yang
- Department of Orthopaedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200092, P. R. China
| | - Qiuming Gao
- Department of Orthopaedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200092, P. R. China
| | - Huijing Xiang
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Guodong Li
- Department of Orthopaedics, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200092, P. R. China
| | - Yu Chen
- Materdicine Lab, School of Life Sciences, Shanghai University, Shanghai 200444, P. R. China
- School of Medicine, Shanghai University, Shanghai, 200444, P. R. China
- Wenzhou Institute of Shanghai University, Wenzhou, 325000, P. R. China
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9
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MRI underestimates presence and size of knee osteophytes using CT as a reference standard. Osteoarthritis Cartilage 2023; 31:656-668. [PMID: 36796577 DOI: 10.1016/j.joca.2023.01.575] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 01/12/2023] [Accepted: 01/31/2023] [Indexed: 02/18/2023]
Abstract
OBJECTIVE To explore the diagnostic performance of routine magnetic resonance imaging (MRI) for the cross-sectional assessment of osteophytes (OPs) in all three knee compartments using computed tomography (CT) as a reference standard. METHODS The Strontium Ranelate Efficacy in Knee Osteoarthritis (SEKOIA) trial explored the effect of 3 years of treatment with strontium ranelate in patients with primary knee OA. OPs were scored for the baseline visit only using a modified MRI Osteoarthritis Knee Score (MOAKS) scoring system in the patellofemoral (PFJ), the medial tibiofemoral (TFJ) and the lateral TFJ. Size was assessed from 0 to 3 in 18 locations. Descriptive statistics were used to describe differences in ordinal grading between CT and MRI. In addition, weighted-kappa statistics were employed to assess agreement between scoring using the two methods. Sensitivity, specificity, positive predictive value and negative predictive value as well as area under the curve (AUC) measures of diagnostic performance were employed using CT as the reference standard. RESULTS Included were 74 patients with available MRI and CT data. Mean age was 62.9 ± 7.5 years. Altogether 1,332 locations were evaluated. For the PFJ, MRI detected 141 (72%) of 197 CT-defined OPs with a w-kappa of 0.58 (95% CI [0.52-0.65]). In the medial TFJ, MRI detected 178 (81%) of 219 CT-OPs with a w-kappa of 0.58 (95% CI [0.51-0.64]). For the lateral compartment these numbers were 84 (70%) of 120 CT-OPs with a w-kappa of 0.58 (95% CI [0.50-0.66]). CONCLUSION MRI underestimates presence of osteophytes in all three knee compartments. CT may be helpful particularly regarding assessment of small osteophytes particularly in early disease.
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Walsh DA, Sofat N, Guermazi A, Hunter DJ. Osteoarthritis Bone Marrow Lesions. Osteoarthritis Cartilage 2023; 31:11-17. [PMID: 36191832 DOI: 10.1016/j.joca.2022.09.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/19/2022] [Accepted: 09/24/2022] [Indexed: 02/02/2023]
Abstract
Assessment and treatment of Bone Marrow Lesions (BMLs) could ultimately make step changes to the lives of people with osteoarthritis (OA). We here review the imaging and pathological characteristics of OA-BMLs, their differential diagnosis and measurement, and cross-sectional and longitudinal associations with pain and OA structural progression. We discuss how biomechanical and cellular factors may contribute to BML pathogenesis, and how pharmacological and non-pharmacological interventions that target BMLs might reduce pain and OA structural progression. We critically appraise semiquantitative and quantitative methods for assessing BMLs, and their potential utilities for identifying people at risk of symptomatic and structural OA progression, and evaluating treatment responses. New interventions that target OA-BMLs should both confirm their importance, and reduce the unacceptable burden of OA.
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Affiliation(s)
- D A Walsh
- Professor of Rheumatology, Pain Centre Versus Arthritis, NIHR Nottingham Biomedical Research Centre, Academic Rheumatology, Division of Injury, Inflammation and Recovery, School of Medicine, University of Nottingham Clinical Sciences Building, City Hospital, Hucknall Road, Nottingham, NG5 1PB, United Kingdom; Consultant Rheumatologist, Sherwood Forest Hospitals NHS Foundation Trust, Mansfield Road, Sutton in Ashfield, NG17 4JL, United Kingdom.
| | - N Sofat
- Professor of Rheumatology, Institute for Infection and Immunity, St George's University of London, Cranmer Terrace, London, SW17 ORE, United Kingdom; Consultant Rheumatologist, St George's University Hospitals NHS Trust, London, SW17 OPQ, United Kingdom.
| | - A Guermazi
- Professor of Radiology, Department of Radiology, VA Boston Healthcare System, Boston University School of Medicine, Boston, MA, United States.
| | - D J Hunter
- Professor of Medicine, Sydney Musculoskeletal Health, Kolling Institute, University of Sydney and Rheumatology Department, Royal North Shore Hospital, Sydney, Australia.
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11
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Li S, Cao P, Chen T, Ding C. Latest insights in disease-modifying osteoarthritis drugs development. Ther Adv Musculoskelet Dis 2023; 15:1759720X231169839. [PMID: 37197024 PMCID: PMC10184265 DOI: 10.1177/1759720x231169839] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 03/29/2023] [Indexed: 05/19/2023] Open
Abstract
Osteoarthritis (OA) is a prevalent and severely debilitating disease with an unmet medical need. In order to alleviate OA symptoms or prevent structural progression of OA, new drugs, particularly disease-modifying osteoarthritis drugs (DMOADs), are required. Several drugs have been reported to attenuate cartilage loss or reduce subchondral bone lesions in OA and thus potentially be DMOADs. Most biologics (including interleukin-1 (IL-1) and tumor necrosis factor (TNF) inhibitors), sprifermin, and bisphosphonates failed to yield satisfactory results when treating OA. OA clinical heterogeneity is one of the primary reasons for the failure of these clinical trials, which can require different therapeutic approaches based on different phenotypes. This review describes the latest insights into the development of DMOADs. We summarize in this review the efficacy and safety profiles of various DMOADs targeting cartilage, synovitis, and subchondral bone endotypes in phase 2 and 3 clinical trials. To conclude, we summarize the reasons for clinical trial failures in OA and suggest possible solutions.
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Affiliation(s)
| | | | - Tianyu Chen
- Clinical Research Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
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12
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Shentu CY, Yan G, Xu DC, Chen Y, Peng LH. Emerging pharmaceutical therapeutics and delivery technologies for osteoarthritis therapy. Front Pharmacol 2022; 13:945876. [PMID: 36467045 PMCID: PMC9712996 DOI: 10.3389/fphar.2022.945876] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 11/03/2022] [Indexed: 10/03/2023] Open
Abstract
Osteoarthritis (OA) is one of the most common joint degenerative diseases in the world. At present, the management of OA depends on the lifestyle modification and joint replacement surgery, with the lifespan of prosthesis quite limited yet. Effective drug treatment of OA is essential. However, the current drugs, such as the non-steroidal anti-inflammatory drugs and acetaminophen, as well as glucosamine, chondroitin sulfate, hyaluronic acid, are accompanied by obvious side effects, with the therapeutic efficacy to be enhanced. Recently, novel reagents such as IL-1 antagonists and nerve growth factor inhibitors have entered clinical trials. Moreover, increasing evidence demonstrated that active ingredients of natural plants have great potential for treating OA. Meanwhile, the use of novel drug delivery strategies may overcome the shortcomings of conventional preparations and enhance the bioavailability of drugs, as well as decrease the side effects significantly. This review therefore summarizes the pathological mechanisms, management strategies, and research progress in the drug molecules including the newly identified active ingredient derived from medicinal plants for OA therapy, with the drug delivery technologies also summarized, with the expectation to provide the summary and outlook for developing the next generation of drugs and preparations for OA therapy.
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Affiliation(s)
- Cheng-Yu Shentu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Ge Yan
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Dong-Chen Xu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Yong Chen
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Li-Hua Peng
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, Macau SAR, China
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13
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Roemer FW, Jansen M, Marijnissen ACA, Guermazi A, Heiss R, Maschek S, Lalande A, Blanco FJ, Berenbaum F, van de Stadt LA, Kloppenburg M, Haugen IK, Ladel CH, Bacardit J, Wisser A, Eckstein F, Lafeber FPJG, Weinans HH, Wirth W. Structural tissue damage and 24-month progression of semi-quantitative MRI biomarkers of knee osteoarthritis in the IMI-APPROACH cohort. BMC Musculoskelet Disord 2022; 23:988. [PMID: 36397054 PMCID: PMC9670371 DOI: 10.1186/s12891-022-05926-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 10/27/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The IMI-APPROACH cohort is an exploratory, 5-centre, 2-year prospective follow-up study of knee osteoarthritis (OA). Aim was to describe baseline multi-tissue semiquantitative MRI evaluation of index knees and to describe change for different MRI features based on number of subregion-approaches and change in maximum grades over a 24-month period. METHODS MRIs were acquired using 1.5 T or 3 T MRI systems and assessed using the semi-quantitative MRI OA Knee Scoring (MOAKS) system. MRIs were read at baseline and 24-months for cartilage damage, bone marrow lesions (BML), osteophytes, meniscal damage and extrusion, and Hoffa- and effusion-synovitis. In descriptive fashion, the frequencies of MRI features at baseline and change in these imaging biomarkers over time are presented for the entire sample in a subregional and maximum score approach for most features. Differences between knees without and with structural radiographic (R) OA are analyzed in addition. RESULTS Two hundred eighty-nine participants had readable baseline MRI examinations. Mean age was 66.6 ± 7.1 years and participants had a mean BMI of 28.1 ± 5.3 kg/m2. The majority (55.3%) of included knees had radiographic OA. Any change in total cartilage MOAKS score was observed in 53.1% considering full-grade changes only, and in 73.9% including full-grade and within-grade changes. Any medial cartilage progression was seen in 23.9% and any lateral progression on 22.1%. While for the medial and lateral compartments numbers of subregions with improvement and worsening of BMLs were very similar, for the PFJ more improvement was observed compared to worsening (15.5% vs. 9.0%). Including within grade changes, the number of knees showing BML worsening increased from 42.2% to 55.6%. While for some features 24-months change was rare, frequency of change was much more common in knees with vs. without ROA (e.g. worsening of total MOAKS score cartilage in 68.4% of ROA knees vs. 36.7% of no-ROA knees, and 60.7% vs. 21.8% for an increase in maximum BML score per knee). CONCLUSIONS A wide range of MRI-detected structural pathologies was present in the IMI-APPROACH cohort. Baseline prevalence and change of features was substantially more common in the ROA subgroup compared to the knees without ROA. TRIAL REGISTRATION Clinicaltrials.gov identification: NCT03883568.
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Grants
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- 115770 The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union's Seventh Framework Programme (FP7/2007-2013) and EFPIA companies' in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- The research leading to these results have received support from the Innovative Medicines Initiative Joint Undertaking under Grant Agreement no 115770, resources of which are composed of financial contribution from the European Union’s Seventh Framework Programme (FP7/2007-2013) and EFPIA companies’ in kind contribution. See www.imi.europa.eu and www.approachproject.eu.
- Friedrich-Alexander-Universität Erlangen-Nürnberg (1041)
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Affiliation(s)
- Frank W. Roemer
- Department of Radiology, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Maximiliansplatz 3, 91054 Erlangen, Germany
- Quantitative Imaging Center, Department of Radiology, Boston University School of Medicine, Boston, MA USA
| | - Mylène Jansen
- University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Ali Guermazi
- Quantitative Imaging Center, Department of Radiology, Boston University School of Medicine, Boston, MA USA
- Department of Radiology, VA Boston Healthcare System, West Roxbury, MA USA
| | - Rafael Heiss
- Department of Radiology, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Maximiliansplatz 3, 91054 Erlangen, Germany
| | - Susanne Maschek
- Chondrometrics GmbH, Freilassing, Germany
- Department of Imaging & Functional Musculoskeletal Research, Institute of Anatomy & Cell Biology, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria
| | - Agnes Lalande
- Institut de Recherches Internationales Servier, Suresnes, France
| | | | - Francis Berenbaum
- Department of Rheumatology, AP-HP Saint-Antoine Hospital, Paris, France
- INSERM, Sorbonne University, Paris, France
| | - Lotte A. van de Stadt
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Margreet Kloppenburg
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
- Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ida K. Haugen
- Division of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway
| | | | - Jaume Bacardit
- School of Computing, Newcastle University, Newcastle, UK
| | - Anna Wisser
- Chondrometrics GmbH, Freilassing, Germany
- Department of Imaging & Functional Musculoskeletal Research, Institute of Anatomy & Cell Biology, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria
- Ludwig Boltzmann Inst. for Arthritis and Rehabilitation, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria
| | - Felix Eckstein
- Chondrometrics GmbH, Freilassing, Germany
- Department of Imaging & Functional Musculoskeletal Research, Institute of Anatomy & Cell Biology, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria
- Ludwig Boltzmann Inst. for Arthritis and Rehabilitation, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria
| | | | | | - Wolfgang Wirth
- Chondrometrics GmbH, Freilassing, Germany
- Department of Imaging & Functional Musculoskeletal Research, Institute of Anatomy & Cell Biology, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria
- Ludwig Boltzmann Inst. for Arthritis and Rehabilitation, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria
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14
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Is Osteoarthritis Always Associated with Low Bone Mineral Density in Elderly Patients? MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58091207. [PMID: 36143883 PMCID: PMC9502981 DOI: 10.3390/medicina58091207] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022]
Abstract
Background and Objectives: The relationship between osteoarthritis (OA) and osteoporosis (OP) has been analysed for over four decades. However, this relationship has remained controversial. Numerous observational and longitudinal studies have shown an inverse association between the two diseases and a protective effect of one against the other. On the other hand, some studies show that patients with OA have impaired bone strength and are more prone to fractures. The study’s main objective was to determine the bone mineral density (BMD) of the spine and hip (femoral neck) of postmenopausal women of different ages, with radiologically determined OA of the hip and knee, as well as to determine the correlation between BMD values and age in the experimental group. Materials and Methods: The retrospective cohort study included 7018 patients with osteoarthritis of peripheral joints and the spine, examined by a rheumatologist in an outpatient rheumatology clinic at the Institute for Treatment and Rehabilitation, Niška Banja from July 2019 to March 2021. A nested anamnestic study was conducted within the cohort study of patients, and it included two groups: an experimental group composed of 60 postmenopausal women, and a control group composed of the same number of women. Out of 120 patients, 24 did not meet the criteria for the continuation of the study (due to technical errors—radiographic and/or densitometry artefacts). Fifty-six postmenopausal women (aged 45−77 years) with hip and knee radiological OA were examined as an experimental group. The participants were divided into two subgroups according to age (45−60 years and over 61 years). The control group included 40 healthy postmenopausal women of the same age range, without radiological OA, with normal BMD of the hip and spine. All patients with OA met the American College of Radiology (ACR) criteria. OA of the hip and knee was determined radiologically according to Kellgren and Lawrence (K&L) classification, and patients were included in the study if a K&L grade of at least ≥ 2 was present. Hip and spine BMD was measured by dual-energy X-ray absorptiometry (DXA). Results: Compared to the control group, we found statistically significantly lower BMD and T-scores of the spine in older postmenopausal women: BMD (g/cm2), p = 0.014; T-score, p = 0.007, as well as of the hip: BMD (g/cm2), p = 0.024; T-score p < 0.001. The values of BMD and T-score of the spine and hip are lower in more severe forms of OA (X-ray stage 3 and 4, according to K&L), p < 0.001. We found negative correlation between BMD and T-score and age only for the hip: BMD (g/cm2), ρ = 0.378, p = 0.005; T-score ρ = −0.349, p = 0.010. Conclusions: Older postmenopausal women with radiographic hip and knee OA had significantly lower BMD of the hip and spine as compared to the control group without OA, pointing to the need for the prevention and treatment of OA, as well as early diagnosis, monitoring, and treatment of low bone mineral density.
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Bonakdari H, Pelletier JP, Abram F, Martel-Pelletier J. A Machine Learning Model to Predict Knee Osteoarthritis Cartilage Volume Changes over Time Using Baseline Bone Curvature. Biomedicines 2022; 10:biomedicines10061247. [PMID: 35740270 PMCID: PMC9220338 DOI: 10.3390/biomedicines10061247] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/12/2022] [Accepted: 05/19/2022] [Indexed: 01/27/2023] Open
Abstract
The hallmark of osteoarthritis (OA), the most prevalent musculoskeletal disease, is the loss of cartilage. By using machine learning (ML), we aimed to assess if baseline knee bone curvature (BC) could predict cartilage volume loss (CVL) at one year, and to develop a gender-based model. BC and cartilage volume were assessed on 1246 participants using magnetic resonance imaging. Variables included age, body mass index, and baseline values of eight BC regions. The outcome consisted of CVL at one year in 12 regions. Five ML methods were evaluated. Validation demonstrated very good accuracy for both genders (R ≥ 0.78), except the medial tibial plateau for the woman. In conclusion, we demonstrated, for the first time, that knee CVL at one year could be predicted using five baseline BC region values. This would benefit patients at risk of structural progressive knee OA.
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Affiliation(s)
- Hossein Bonakdari
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, QC H2X 0A9, Canada; (H.B.); (J.-P.P.)
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, QC H2X 0A9, Canada; (H.B.); (J.-P.P.)
| | - François Abram
- Medical Imaging Consultant, ArthroLab Inc., Montreal, QC H2X 0A9, Canada;
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, QC H2X 0A9, Canada; (H.B.); (J.-P.P.)
- Correspondence: ; Tel.: +1-514-890-8000 (ext. 27281); Fax: +1-514-412-7582
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16
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Driban JB, Price LL, LaValley MP, Lo GH, Zhang M, Harkey MS, Canavatchel A, McAlindon TE. Novel Framework for Measuring Whole Knee Osteoarthritis Progression Using Magnetic Resonance Imaging. Arthritis Care Res (Hoboken) 2022; 74:799-808. [PMID: 33202111 PMCID: PMC8631200 DOI: 10.1002/acr.24512] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 10/05/2020] [Accepted: 11/10/2020] [Indexed: 11/07/2022]
Abstract
OBJECTIVE We developed and validated a set of composite scores that combine quantitative magnetic resonance imaging (MRI)-based measurements of hyaline cartilage damage, bone marrow lesions (BMLs), and effusion-synovitis into composite scores. METHODS We selected 300 participants (n = 100 for development cohort; n = 200 for validation cohort) from the Osteoarthritis Initiative with complete clinical, radiographic, and MRI data at baseline and 24 months. We used semiautomated programs to quantify tibiofemoral and patellar cartilage damage, BML volume, and whole-knee effusion-synovitis volume. The candidate composite scores were formed by summing changes from baseline to 24 months based on prespecified methods. We evaluated the candidate composite scores for 1) the ability to differentiate groups with and without knee osteoarthritis progression (17 radiographic and patient-reported definitions), 2) sensitivity to change (standardized response means), and 3) relative performance relating to legacy outcome measures of knee osteoarthritis progression. RESULTS Three of 13 developed composite scores qualified for testing in the validation cohort (ranked by sensitivity to change): whole-knee cumulative cartilage damage, unweighted total knee score, and BML plus effusion-synovitis volume. Change in cumulative cartilage damage associated with radiographic progression (Kellgren/Lawrence grade: odds ratio [OR] 1.84; joint space width progression: OR 2.11). Changes in the unweighted total knee score (OR 1.97) and BML plus effusion-synovitis score (OR 1.92) associated with Western Ontario and McMaster Universities Osteoarthritis Index knee pain progression. CONCLUSION Two composite scores emerged, reflecting discrete domains of knee osteoarthritis progression. First, cumulative damage, which is measured by a whole-knee cartilage damage score, reflects the damage accrued over time. Second, dynamic disease activity, which is measured by a BML plus effusion-synovitis score, relates to changes in a patient's state of disease and symptoms.
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Affiliation(s)
| | - Lori Lyn Price
- Tufts University and Tufts Medical Center, Boston, Massachusetts
| | | | - Grace H Lo
- Baylor College of Medicine, Houston, Texas
| | - Ming Zhang
- Tufts Medical Center, Boston, Massachusetts
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17
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Yu H, Liu Y, Yang X, He J, Zhong Q, Guo X. The anti‑inflammation effect of strontium ranelate on rat chondrocytes with or without IL‑1β in vitro. Exp Ther Med 2022; 23:208. [PMID: 35126711 PMCID: PMC8796647 DOI: 10.3892/etm.2022.11131] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 12/10/2021] [Indexed: 12/03/2022] Open
Abstract
Temporomandibular joint osteoarthritis (TMJ-OA) is a common disease with a high level of inflammation in the joint micro-environment and cartilage degradation. Anti-inflammation and cartilage regeneration are the key therapies for TMJ-OA, but currently, there are no novel medicines or treatments that can control its pathogenic progression. Strontium ranelate (SrR) is an anti-osteoporosis drug and is now considered a promising anti-OA drug, but the anti-inflammatory effect of SrR remains to be elucidated. In the present study, the anti-inflammatory effect of SrR in a normal or high IL-1β environment was observed. Cell viability under the treatment of SrR was tested using Cell Counting Kit-8. Toluidine blue staining, immunofluorescence staining, hydroxyproline assay, PCR assay and western blotting were used to detect the expression of collagen (Col)II, proteoglycans (PG) and aggrecan as a reflection of extracellular matrix synthesis and MMP-9,13 hydroxyproline was used as an inflammation indicator. IL-1β of 10 ng/ml was added to the culture medium as inflammation environment and the tests of those biomarkers were done again. Then, the changes in β-catenin were also studied by immunofluorescence staining, PCR assay and western blotting to explore the possible involvement of the Wnt/β-catenin pathway. The results showed a significant inhibition of MMP-9, MMP-13, β-catenin and promotion of Col-II, PG and aggrecan in normal chondrocytes. The presence of IL-1β markedly upregulated the expression of MMP-9, MMP-13 and β-catenin while suppressing Col-II and PG and SrR partially reversed this trend. In conclusion, SrR decreased MMPs but promoted Col-II, aggrecan and PG synthesis in rat chondrocytes with or without the presence of IL-1β and SrR attenuated the IL-1β-induced increase in β-catenin, thus reducing the inflammatory reaction.
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Affiliation(s)
- Hao Yu
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
| | - Yan Liu
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
| | - Xiangwen Yang
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
| | - Jiajing He
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
| | - Qun Zhong
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
| | - Xiaojing Guo
- Department of Prosthodontics, Shanghai Stomatological Hospital, Huangpu, Shanghai 200001, P.R. China
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18
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Common Biochemical and Magnetic Resonance Imaging Biomarkers of Early Knee Osteoarthritis and of Exercise/Training in Athletes: A Narrative Review. Diagnostics (Basel) 2021; 11:diagnostics11081488. [PMID: 34441422 PMCID: PMC8391340 DOI: 10.3390/diagnostics11081488] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/29/2021] [Accepted: 08/09/2021] [Indexed: 12/24/2022] Open
Abstract
Knee osteoarthritis (OA) is the most common joint disease of the world population. Although considered a disease of old age, OA also affects young individuals and, more specifically among them, those practicing knee-joint-loading sports. Predicting OA at an early stage is crucial but remains a challenge. Biomarkers that can predict early OA development will help in the design of specific therapeutic strategies for individuals and, for athletes, to avoid adverse outcomes due to exercising/training regimens. This review summarizes and compares the current knowledge of fluid and magnetic resonance imaging (MRI) biomarkers common to early knee OA and exercise/training in athletes. A variety of fluid biochemical markers have been proposed to detect knee OA at an early stage; however, few have shown similar behavior between the two studied groups. Moreover, in endurance athletes, they are often contingent on the sport involved. MRI has also demonstrated its ability for early detection of joint structural alterations in both groups. It is currently suggested that for optimal forecasting of early knee structural alterations, both fluid and MRI biomarkers should be analyzed as a panel and/or combined, rather than individually.
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Cai G, Aitken D, Laslett LL, Hill C, Wluka AE, March L, Cicuttini F, Pelletier JP, Martel-Pelletier J, Jones G. The association between change in bone marrow lesion size and change in tibiofemoral cartilage volume and knee symptoms. Rheumatology (Oxford) 2021; 60:2791-2800. [PMID: 33253381 DOI: 10.1093/rheumatology/keaa716] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/26/2020] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVE To describe the association between change in subchondral bone marrow lesions (BMLs) and change in tibiofemoral cartilage volume and knee symptoms in patients with symptomatic knee OA. METHODS In total, 251 participants (mean 61.7 years, 51% female) were included. Tibiofemoral cartilage volume was measured at baseline and 24 months, and BML size at baseline, 6 and 24 months. Knee pain and function scores were evaluated at baseline, 6 and 24 months. Change in total and compartment-specific BML size was categorized according to the Least Significance Criterion. Linear mixed-effects models were used to evaluate the associations of change in BMLs over 6 and 24 months with change in cartilage volume over 24 months and knee symptoms over 6 and 24 months. RESULTS Total BML size enlarged in 26% of participants, regressed in 31% and remained stable in 43% over 24 months. Compared with stable BMLs in the same compartment, enlarging BMLs over 24 months were associated with greater cartilage loss (difference: -53.0mm3, 95% CI: -100.0, -6.0), and regressing BMLs were not significantly associated with reduced cartilage loss (difference: 32.4mm3, 95% CI: -8.6, 73.3) over 24 months. Neither enlargement nor regression of total BML size over 6 and 24 months was associated with change in knee pain and function over the same time intervals. CONCLUSIONS In subjects with symptomatic knee osteoarthritis and BMLs, enlarging BMLs may lead to greater cartilage loss but regressing lesions are not associated with reduced cartilage loss while neither is associated with change in knee symptoms.
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Affiliation(s)
- Guoqi Cai
- Department of Endocrinology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.,Menzies Institute for Medical Research, University of Tasmania, TAS, Hobart, Australia
| | - Dawn Aitken
- Menzies Institute for Medical Research, University of Tasmania, TAS, Hobart, Australia
| | - Laura L Laslett
- Menzies Institute for Medical Research, University of Tasmania, TAS, Hobart, Australia
| | - Catherine Hill
- Department of Rheumatology, The Queen Elizabeth Hospital, University of Adelaide, Adelaide, Australia
| | - Anita E Wluka
- Department of Epidemiology and Preventive Medicine, Monash University, Alfred Hospital, Melbourne, Australia
| | - Lyn March
- Institute of Bone and Joint Research, The University of Sydney, Royal North Shore Hospital, Sydney, Australia
| | - Flavia Cicuttini
- Department of Epidemiology and Preventive Medicine, Monash University, Alfred Hospital, Melbourne, Australia
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Centre (CRCHUM), Montreal, Quebec, Canada
| | - Graeme Jones
- Menzies Institute for Medical Research, University of Tasmania, TAS, Hobart, Australia
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20
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Maksymowych WP, McReynolds A, Pedersen SJ, Weber U, Paschke J, Wichuk S, Jaremko JL, Lambert RG. The OMERACT Knee Inflammation MRI Scoring System: Validation of quantitative methodologies and tri-compartmental overlays in osteoarthritis. Semin Arthritis Rheum 2021; 51:925-928. [PMID: 34167825 DOI: 10.1016/j.semarthrit.2021.05.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 05/12/2021] [Accepted: 05/31/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To validate a revised version of the KIMRISS method for quantification of BML and synovitis-effusion in the knee by comparison with an established method, MOAKS. METHODS Novel calibration tools were developed for both methods. We compared reliability for status and change scores of BML and synovitis-effusion on baseline and one-year MRI scans. RESULTS Significant increase in both BML and synovitis-effusion was evident using KIMRISS but only for synovitis-effusion using MOAKS. Pre-specified targets for acceptable reliability (≥0.80 and ≥0.70 for status and change scores, respectively) were achieved more frequently for KIMRISS for both BML and synovitis. CONCLUSION Per OFISA criteria, KIMRISS should progress to assessment of discrimination.
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Affiliation(s)
- Walter P Maksymowych
- Department of Medicine, University of Alberta, 13-103 Clinical Sciences Building, 11350-83 Avenue, Edmonton T6G 2G3, Alberta, Canada; CARE Arthritis, CARE Arthritis Ltd. 316 Windermere Road NW Unit 210, Edmonton T6W 2Z8, Alberta, Canada.
| | - Andrew McReynolds
- Department of Radiology and Diagnostic Imaging, University of Alberta Hospital, 2A2.41 WC Mackenzie Health Sciences Centre, 8440 112 Street NW, T6G 2B7, Medical Imaging Consultants, 202-11010 - 101 Street NW, T5H 4B9, Edmonton, Alberta, Canada
| | - Susanne J Pedersen
- Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Valdemar Hansen Vej 17, 2600 Glostrup, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen, Denmark
| | | | - Joel Paschke
- CARE Arthritis, CARE Arthritis Ltd. 316 Windermere Road NW Unit 210, Edmonton T6W 2Z8, Alberta, Canada
| | - Stephanie Wichuk
- Department of Medicine, University of Alberta, 13-103 Clinical Sciences Building, 11350-83 Avenue, Edmonton T6G 2G3, Alberta, Canada
| | - Jacob L Jaremko
- Department of Radiology and Diagnostic Imaging, University of Alberta Hospital, 2A2.41 WC Mackenzie Health Sciences Centre, 8440 112 Street NW, T6G 2B7, Medical Imaging Consultants, 202-11010 - 101 Street NW, T5H 4B9, Edmonton, Alberta, Canada
| | - Robert G Lambert
- Department of Radiology and Diagnostic Imaging, University of Alberta Hospital, 2A2.41 WC Mackenzie Health Sciences Centre, 8440 112 Street NW, T6G 2B7, Medical Imaging Consultants, 202-11010 - 101 Street NW, T5H 4B9, Edmonton, Alberta, Canada
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21
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Yu H, Liu Y, Yang X, He J, Zhang F, Zhong Q, Guo X. Strontium ranelate promotes chondrogenesis through inhibition of the Wnt/β-catenin pathway. Stem Cell Res Ther 2021; 12:296. [PMID: 34016181 PMCID: PMC8139050 DOI: 10.1186/s13287-021-02372-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/09/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cartilage regeneration is a key step in functional reconstruction for temporomandibular joint osteoarthritis (TMJ-OA) but is a difficult issue to address. Strontium ranelate (SrR) is an antiosteoporosis drug that has been proven to affect OA in recent years, but its effect on chondrogenesis and the underlying mechanism are still unclear. METHODS Bone mesenchymal stem cells (BMSCs) from Sprague-Dawley (SD) rats were induced in chondrogenic differentiation medium with or without SrR, XAV-939, and LiCl. CCK-8 assays were used to examine cell proliferation, and alcian blue staining, toluidine blue staining, immunofluorescence, and PCR analysis were performed. Western blot (WB) analyses were used to assess chondrogenic differentiation of the cells. For an in vivo study, 30 male SD rats with cartilage defects on both femoral condyles were used. The defect sites were not filled, filled with silica nanosphere plus gelatine-methacryloyl (GelMA), or filled with SrR-loaded silica nanosphere plus GelMA. After 3 months of healing, paraffin sections were made, and toluidine blue staining, safranin O/fast green staining, and immunofluorescent or immunohistochemical staining were performed for histological evaluation. The data were analyzed by SPSS 26.0 software. RESULTS Low concentrations of SrR did not inhibit cell proliferation, and the cells treated with SrR (0.25 mmol/L) showed stronger chondrogenesis than the control. XAV-939, an inhibitor of β-catenin, significantly promoted chondrogenesis, and SrR did not suppress this effect, while LiCl, an agonist of β-catenin, strongly suppressed chondrogenesis, and SrR reversed this inhibitory effect. In vivo study showed a significantly better cartilage regeneration and a lower activation level of β-catenin by SrR-loaded GelMA than the other treatments. CONCLUSION SrR could promote BMSCs chondrogenic differentiation by inhibiting the Wnt/β-catenin signaling pathway and accelerate cartilage regeneration in rat femoral condyle defects.
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Affiliation(s)
- Hao Yu
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China.,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China
| | - Yan Liu
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China.,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China
| | - Xiangwen Yang
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China.,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China
| | - Jiajing He
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China.,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China
| | - Fan Zhang
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China.,Department of Orthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China
| | - Qun Zhong
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China.,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China
| | - Xiaojing Guo
- Department of Prosthodontics, Shanghai Stomatological Hospital, Fudan University, Shanghai, 200001, China. .,Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, 200001, China.
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22
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Wang T, Guo Y, Shi XW, Gao Y, Zhang JY, Wang CJ, Yang X, Shu Q, Chen XL, Fu XY, Xie WS, Zhang Y, Li B, Guo CQ. Acupotomy Contributes to Suppressing Subchondral Bone Resorption in KOA Rabbits by Regulating the OPG/RANKL Signaling Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:8168657. [PMID: 34335838 PMCID: PMC8298142 DOI: 10.1155/2021/8168657] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/11/2020] [Accepted: 04/11/2021] [Indexed: 01/19/2023]
Abstract
Subchondral bone lesions, as the crucial inducement for accelerating cartilage degeneration, have been considered as the initiating factor and the potential therapeutic target of knee osteoarthritis (KOA). Acupotomy, the biomechanical therapy guided by traditional Chinese meridians theory, alleviates cartilage deterioration by correcting abnormal mechanics. Whether this mechanical effect of acupotomy inhibits KOA subchondral bone lesions is indistinct. This study aimed to investigate the effects of acupotomy on inhibiting subchondral bone resorption and to define the possible mechanism in immobilization-induced KOA rabbits. After KOA modeling, 8 groups of rabbits (4w/6w acupotomy, 4w/6w electroacupuncture, 4w/6w model, and 4w/6w control groups) received the indicated intervention for 3 weeks. Histological and bone histomorphometry analyses revealed that acupotomy prevented both cartilage surface erosion and subchondral bone loss. Further, acupotomy suppressed osteoclast activity and enhanced osteoblast activity in KOA subchondral bone, showing a significantly decreased expression of tartrate-resistant acid phosphatase (TRAP), matrix metalloproteinases-9 (MMP-9), and cathepsin K (Ctsk) and a significantly increased expression of osteocalcin (OCN); this regulation may be mediated by blocking the decrease in osteoprotegerin (OPG) and the increase in NF-κB receptor activated protein ligand (RANKL). These findings indicated that acupotomy inhibited osteoclast activity and promoted osteoblast activity to ameliorate hyperactive subchondral bone resorption and cartilage degeneration in immobilization-induced KOA rabbits, which may be mediated by the OPG/RANKL signaling pathway. Taken together, our results indicate that acupotomy may have therapeutic potential in KOA by restoring the balance between bone formation and bone resorption to attenuate subchondral bone lesions.
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Affiliation(s)
- Tong Wang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yan Guo
- Acupuncture and Moxibustion Department, Beijing Hospital of Traditional Chinese Medicine affiliated with Capital Medical University, Beijing 100010, China
| | - Xiao-Wei Shi
- Massage Department, The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yang Gao
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jia-Yi Zhang
- Traditional Chinese Medicine Department, Beijing Nankou Hospital, Beijing 102200, China
| | - Chun-Jiu Wang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xue Yang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Qi Shu
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xi-Lin Chen
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xin-Yi Fu
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Wen-Shan Xie
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yi Zhang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Bin Li
- Acupuncture and Moxibustion Department, Beijing Hospital of Traditional Chinese Medicine affiliated with Capital Medical University, Beijing 100010, China
| | - Chang-Qing Guo
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
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23
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Cai X, Yuan S, Zeng Y, Wang C, Yu N, Ding C. New Trends in Pharmacological Treatments for Osteoarthritis. Front Pharmacol 2021; 12:645842. [PMID: 33935742 PMCID: PMC8085504 DOI: 10.3389/fphar.2021.645842] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 03/16/2021] [Indexed: 02/06/2023] Open
Abstract
Osteoarthritis (OA) is the leading cause of function loss and disability among the elderly, with significant burden on the individual and society. It is a severe disease for its high disability rates, morbidity, costs, and increased mortality. Multifactorial etiologies contribute to the occurrence and development of OA. The heterogeneous condition poses a challenge for the development of effective treatment for OA; however, emerging treatments are promising to bring benefits for OA management in the future. This narrative review will discuss recent developments of agents for the treatment of OA, including potential disease-modifying osteoarthritis drugs (DMOADs) and novel therapeutics for pain relief. This review will focus more on drugs that have been in clinical trials, as well as attractive drugs with potential applications in preclinical research. In the past few years, it has been realized that a complex interaction of multifactorial mechanisms is involved in the pathophysiology of OA. The authors believe there is no miracle therapeutic strategy fitting for all patients. OA phenotyping would be helpful for therapy selection. A variety of potential therapeutics targeting inflammation mechanisms, cellular senescence, cartilage metabolism, subchondral bone remodeling, and the peripheral nociceptive pathways are expected to reshape the landscape of OA treatment over the next few years. Precise randomized controlled trials (RCTs) are expected to identify the safety and efficacy of novel therapies targeting specific mechanisms in OA patients with specific phenotypes.
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Affiliation(s)
- Xiaoyan Cai
- Department of Rheumatology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Shiwen Yuan
- Department of Rheumatology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yanting Zeng
- Department of Rheumatology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Cuicui Wang
- Department of Rheumatology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Na Yu
- Department of Rheumatology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Changhai Ding
- Department of Rheumatology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China.,Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China.,Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
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24
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From Pathogenesis to Therapy in Knee Osteoarthritis: Bench-to-Bedside. Int J Mol Sci 2021; 22:ijms22052697. [PMID: 33800057 PMCID: PMC7962130 DOI: 10.3390/ijms22052697] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/25/2021] [Accepted: 03/04/2021] [Indexed: 12/22/2022] Open
Abstract
Osteoarthritis (OA) is currently the most widespread musculoskeletal condition and primarily affects weight-bearing joints such as the knees and hips. Importantly, knee OA remains a multifactorial whole-joint disease, the appearance and progression of which involves the alteration of articular cartilage as well as the synovium, subchondral bone, ligaments, and muscles through intricate pathomechanisms. Whereas it was initially depicted as a predominantly aging-related and mechanically driven condition given its clear association with old age, high body mass index (BMI), and joint malalignment, more recent research identified and described a plethora of further factors contributing to knee OA pathogenesis. However, the pathogenic intricacies between the molecular pathways involved in OA prompted the study of certain drugs for more than one therapeutic target (amelioration of cartilage and bone changes, and synovial inflammation). Most clinical studies regarding knee OA focus mainly on improvement in pain and joint function and thus do not provide sufficient evidence on the possible disease-modifying properties of the tested drugs. Currently, there is an unmet need for further research regarding OA pathogenesis as well as the introduction and exhaustive testing of potential disease-modifying pharmacotherapies in order to structure an effective treatment plan for these patients.
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25
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Gielis WP, de Jong PA, Bartstra JW, Foppen W, Spiering W, den Harder AM. Osteoarthritis in Pseudoxanthoma Elasticum Patients: An Explorative Imaging Study. J Clin Med 2020; 9:E3898. [PMID: 33271791 PMCID: PMC7760162 DOI: 10.3390/jcm9123898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/27/2020] [Accepted: 11/29/2020] [Indexed: 11/16/2022] Open
Abstract
Pseudoxanthoma elasticum (PXE) is a systemic disease affecting the skin, eyes, and cardiovascular system of patients. Cardiovascular disease is associated with osteoarthritis (OA), which is the most common cause of joint pain. There is a lack of systematic investigations on joint manifestations in PXE in the literature. In this explorative study, we aimed to investigate whether patients with PXE are more at risk for developing osseous signs of OA. Patients with PXE and hospital controls with whole-body low-dose CT examinations available were included. OA was assessed using the OsteoArthritis Computed Tomography (OACT)-score, which is a 4-point Likert scale, in the acromioclavicular (AC), glenohumeral (GH), facet, hip, knee, and ankle joints. Additionally, intervertebral disc degeneration was scored. Data were analyzed using ordinal logistic regression adjusted for age, body mass index (BMI), and smoking status. In total, 106 PXE patients (age 56 (48-64), 42% males, BMI 25.3 (22.7-28.2)) and 87 hospital controls (age 55 (43-67), 46% males, BMI 26.0 (22.5-29.2)) were included. PXE patients were more likely to have a higher OA score for the AC joints (OR 2.00 (1.12-3.61)), tibiofemoral joint (OR 2.63 (1.40-5.07)), and patellofemoral joint (2.22 (1.18-4.24)). For the other joints, the prevalence and severity of OA did not differ significantly. This study suggests that patients with PXE are more likely to have structural OA of the knee and AC joints, which needs clinical confirmation in larger groups and further investigation into the mechanism.
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Affiliation(s)
- Willem Paul Gielis
- University Medical Center Utrecht, Department of Orthopaedics, Utrecht University, 3584 CX Utrecht, The Netherlands
- University Medical Center Utrecht, Department of Radiology, Utrecht University, 3584 CX Utrecht, The Netherlands; (P.A.d.J.); (J.W.B.); (W.F.); (A.M.d.H.)
| | - Pim A. de Jong
- University Medical Center Utrecht, Department of Radiology, Utrecht University, 3584 CX Utrecht, The Netherlands; (P.A.d.J.); (J.W.B.); (W.F.); (A.M.d.H.)
| | - Jonas W. Bartstra
- University Medical Center Utrecht, Department of Radiology, Utrecht University, 3584 CX Utrecht, The Netherlands; (P.A.d.J.); (J.W.B.); (W.F.); (A.M.d.H.)
| | - Wouter Foppen
- University Medical Center Utrecht, Department of Radiology, Utrecht University, 3584 CX Utrecht, The Netherlands; (P.A.d.J.); (J.W.B.); (W.F.); (A.M.d.H.)
| | - Wilko Spiering
- University Medical Center Utrecht, Department of Vascular Medicine, Utrecht University, 3584 CX Utrecht, The Netherlands;
| | - Annemarie M. den Harder
- University Medical Center Utrecht, Department of Radiology, Utrecht University, 3584 CX Utrecht, The Netherlands; (P.A.d.J.); (J.W.B.); (W.F.); (A.M.d.H.)
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26
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Wang J, Guo X, Kang Z, Qi L, Yang Y, Wang J, Xu J, Gao S. Roles of Exosomes from Mesenchymal Stem Cells in Treating Osteoarthritis. Cell Reprogram 2020; 22:107-117. [PMID: 32364765 DOI: 10.1089/cell.2019.0098] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Jian Wang
- East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xuanxuan Guo
- East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhanrong Kang
- Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University, Shanghai, China
| | - Lingbin Qi
- Department of Regenerative Medicine, Tongji University School of Medicine, Shanghai, China
| | - Ying Yang
- Key Lab of Glycoconjugate Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Ministry of Public Health, Shanghai, China
| | - Juan Wang
- Department of Cell Engineering, Binzhou Medical College, Yantai, China
| | - Jun Xu
- East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shane Gao
- East Hospital, Tongji University School of Medicine, Shanghai, China
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27
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Hu P, Du J, Zhang S, Wang T, Li J, Chen G, Zhou G. Oral Administration of Strontium Gluconate Effectively Reduces Articular Cartilage Degeneration Through Enhanced Anabolic Activity of Chondrocytes and Chondrogenetic Differentiation of Mesenchymal Stromal Cells. Biol Trace Elem Res 2020; 193:422-433. [PMID: 31054068 DOI: 10.1007/s12011-019-01711-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/27/2019] [Indexed: 12/28/2022]
Abstract
Osteoarthritis (OA), a common degenerative disease affecting articular cartilage, is caused by multiple factors, and currently, there are few approaches to effectively delay its progression. This study aimed to evaluate whether a strontium compound (in the form of strontium gluconate, Glu-Sr) could reduce OA pathology severity in osteoarthritic rat models by directly targeting chondrocytes, including catabolic/anabolic activities and/or chondrogenic differentiation. Glu-Sr was administered to OA rats by oral gavage beginning during OA induction and continuing for 8 weeks. Glu-Sr treatment was found to significantly reduce cartilage degeneration and delay OA progression. Further examination showed that collagen II, Sox9, and aggrecan (ACAN) genes were up-regulated whereas IL-1β was down-regulated in chondrocytes isolated from Glu-Sr-treated rats. Glu-Sr also antagonized the catabolic effects of IL-1β on chondrocytes. Furthermore, Glu-Sr was shown to promote the chondrogenic differentiation of bone marrow mesenchymal stem cells (BMMSCs), possibly through promoting chondrogenic gene expression, including CTGF and FGF1, as revealed by RNA-sequencing (RNA-seq). These results suggest that systemic administration of Glu-Sr may be useful in prophylactic and therapeutic treatment of chronic cartilage degradation through affecting multiple steps from chondrogenic differentiation of progenitors to matrix formation in mature chondrocytes.
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Affiliation(s)
- Peilin Hu
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Health Sciences Center, Shenzhen University, Shenzhen, 518060, China
| | - Jie Du
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Health Sciences Center, Shenzhen University, Shenzhen, 518060, China
| | - Shuai Zhang
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Health Sciences Center, Shenzhen University, Shenzhen, 518060, China
| | - Ting Wang
- Shenzhen Alps Cell Technologies Ltd, Longhua District, Shenzhen, Guangdong Province, China
| | - Jun Li
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Health Sciences Center, Shenzhen University, Shenzhen, 518060, China
| | - Gang Chen
- Department of Orthopaedic Surgery, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi Province, China.
| | - Guangqian Zhou
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Health Sciences Center, Shenzhen University, Shenzhen, 518060, China.
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Understanding the Molecular Mechanisms Underlying the Pathogenesis of Arthritis Pain Using Animal Models. Int J Mol Sci 2020; 21:ijms21020533. [PMID: 31947680 PMCID: PMC7013391 DOI: 10.3390/ijms21020533] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/27/2019] [Accepted: 01/09/2020] [Indexed: 12/22/2022] Open
Abstract
Arthritis, including osteoarthritis (OA) and rheumatoid arthritis (RA), is the leading cause of years lived with disability (YLD) worldwide. Although pain is the cardinal symptom of arthritis, which is directly related to function and quality of life, the elucidation of the mechanism underlying the pathogenesis of pain in arthritis has lagged behind other areas, such as inflammation control and regulation of autoimmunity. The lack of therapeutics for optimal pain management is partially responsible for the current epidemic of opioid and narcotic abuse. Recent advances in animal experimentation and molecular biology have led to significant progress in our understanding of arthritis pain. Despite the inherent problems in the extrapolation of data gained from animal pain studies to arthritis in human patients, the critical assessment of molecular mediators and translational studies would help to define the relevance of novel therapeutic targets for the treatment of arthritis pain. This review discusses biological and molecular mechanisms underlying the pathogenesis of arthritis pain determined in animal models of OA and RA, along with the methodologies used.
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Roemer FW, Collins J, Kwoh CK, Hannon MJ, Neogi T, Felson DT, Hunter DJ, Lynch JA, Guermazi A. MRI-based screening for structural definition of eligibility in clinical DMOAD trials: Rapid OsteoArthritis MRI Eligibility Score (ROAMES). Osteoarthritis Cartilage 2020; 28:71-81. [PMID: 31513920 PMCID: PMC7235947 DOI: 10.1016/j.joca.2019.08.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 08/06/2019] [Accepted: 08/28/2019] [Indexed: 02/02/2023]
Abstract
PURPOSE Our aim was to introduce a simplified MRI instrument, Rapid OsteoArthritis MRI Eligibility Score (ROAMES), for defining structural eligibility of patients for inclusion in disease-modifying osteoarthritis drug trials using a tri-compartmental anatomic approach that enables stratification of knees into different structural phenotypes and includes diagnoses of exclusion. We also aimed to define overlap between phenotypes and determine reliability. METHODS 50 knees from the Foundation for National Institutes of Health Osteoarthritis Biomarkers study, a nested case-control study within the Osteoarthritis Initiative, were selected within pre-defined definitions of phenotypes as either inflammatory, subchondral bone, meniscus/cartilage, atrophic or hypertrophic. A focused scoring instrument was developed covering cartilage, meniscal damage, inflammation and osteophytes. Diagnoses of exclusion were meniscal root tears, osteonecrosis, subchondral insufficiency fracture, tumors, malignant marrow infiltration and acute traumatic changes. Reliability was determined using weighted kappa statistics. Descriptive statistics were used for determining concordance between the a priori phenotypic definition and ROAMES and overlap between phenotypes. RESULTS ROAMES identified 43 of 50 (86%) pre-defined phenotypes correctly. Of the 50 participants, 27 (54%) had no additional phenotypes other than the pre-defined phenotype. 18 (36%) had one and 5 (10%) had two additional phenotypes. None had three or four additional phenotypes. All features of ROAMES showed almost perfect agreement. One case with osteonecrosis and one with a tumor were detected. CONCLUSIONS ROAMES is able to screen and stratify potentially eligible knees into different structural phenotypes and record relevant diagnoses of exclusion. Reliability of the instrument showed almost perfect agreement.
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Affiliation(s)
- Frank W. Roemer
- Quantitative Imaging Center, Department of Radiology, Boston University School of Medicine, FGH Building, 4th floor, 820 Harrison Avenue, Boston, MA 02118, USA,Department of Radiology, Friedrich-Alexander University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany, Maximiliansplatz 3, 91054 Erlangen, Germany
| | - Jamie Collins
- Orthopaedics and Arthritis Center of Outcomes Research, Brigham and Women’s Hospital, Harvard Medical, School, 75 Francis Street, BTM Suite 5016 Boston, MA 02115 Boston, Massachusetts
| | - C. Kent Kwoh
- University of Arizona Arthritis Center & University of Arizona College of Medicine, 1501 N Campbell Ave, Tucson, AZ 85724, USA
| | - Michael J. Hannon
- Pinney Associates, 201 N Craig St # 320, Pittsburgh, PA 15213, USA & Division of Rheumatology and Clinical Immunology, University of Pittsburgh School of Medicine, S700 Biomedical Science Tower, 3500 Terrace Street, Pittsburgh, PA 15261, USA (former affiliation at time of study)
| | - Tuhina Neogi
- Boston University School of Medicine, Section of Rheumatology, 650 Albany Street, Suite X-20, Boston, MA, 02118, USA
| | - David T. Felson
- Boston University School of Medicine, Section of Rheumatology, 650 Albany Street, Suite X-20, Boston, MA, 02118, USA
| | - David J. Hunter
- Department of Rheumatology, Royal North Shore Hospital and Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Pacific Hwy, St Leonards, NSW 2065, Australia
| | - John A. Lynch
- Department of Epidemiology and Biostatistics, University of California San Francisco, 550 16th St, San Francisco, CA 94158, USA
| | - Ali Guermazi
- Quantitative Imaging Center, Department of Radiology, Boston University School of Medicine, FGH Building, 4th floor, 820 Harrison Avenue, Boston, MA 02118, USA
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Muratovic D, Findlay DM, Cicuttini FM, Wluka AE, Lee YR, Edwards S, Kuliwaba JS. Bone marrow lesions in knee osteoarthritis: regional differences in tibial subchondral bone microstructure and their association with cartilage degeneration. Osteoarthritis Cartilage 2019; 27:1653-1662. [PMID: 31306782 DOI: 10.1016/j.joca.2019.07.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 06/19/2019] [Accepted: 07/03/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The aim of this study was to investigate how bone microstructure within bone marrow lesions (BMLs) relates to the bone and cartilage across the whole human tibial plateau. DESIGN Thirty-two tibial plateaus from patients with osteoarthritis (OA) at total knee arthroplasty and eleven age-matched non-OA controls, were scanned ex vivo by MRI to identify BMLs and by micro CT to quantitate the subchondral (plate and trabecular) bone microstructure. For cartilage evaluation, specimens were processed histologically. RESULTS BMLs were detected in 75% of the OA samples (OA-BML), located predominantly in the anterior-medial (AM) region. In contrast to non-OA control and OA-no BML, in OA-BML differences in microstructure were significantly more evident between subregions. In OA-BML, the AM region contained the most prominent structural alterations. Between-group comparisons showed that the AM region of the OA-BML group had significantly higher histological degeneration (OARSI grade) (P < .0001, P < .05), thicker subchondral plate (P < .05, P < .05), trabeculae that are more anisotropic (P < .0001, P < .05), well connected (P < .05, P = n.s), and more plate-like (P < 0.05, P < 0.05), compared to controls and OA-no BML at this site. Compared to controls, OA-no BML had significantly higher OARSI grade (P < .0001), and lower trabecular number (P < .05). CONCLUSION In established knee OA, both the extent of cartilage damage and microstructural degeneration of the subchondral bone were dependent on the presence of a BML. In OA-no BML, bone microstructural alterations are consistent with a bone attrition phase of the disease. Thus, the use of BMLs as MRI image-based biomarkers appear to inform on the degenerative state within the osteochondral unit.
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Affiliation(s)
- D Muratovic
- Centre for Orthopaedic and Trauma Research, Discipline of Orthopaedics and Trauma, The University of Adelaide, Adelaide, Australia.
| | - D M Findlay
- Centre for Orthopaedic and Trauma Research, Discipline of Orthopaedics and Trauma, The University of Adelaide, Adelaide, Australia.
| | - F M Cicuttini
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.
| | - A E Wluka
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.
| | - Y R Lee
- Centre for Orthopaedic and Trauma Research, Discipline of Orthopaedics and Trauma, The University of Adelaide, Adelaide, Australia.
| | - S Edwards
- Adelaide Health Technology Assessment (AHTA), School of Public Health, The University of Adelaide, Adelaide, Australia.
| | - J S Kuliwaba
- Centre for Orthopaedic and Trauma Research, Discipline of Orthopaedics and Trauma, The University of Adelaide, Adelaide, Australia.
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Özer D, Eyigör S. Osteoartrozda yeni tedavi yöntemleri. EGE TIP DERGISI 2019. [DOI: 10.19161/etd.648590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Abstract
Bone marrow lesions of the knee in patients with osteoarthritis (OA-BML) are an important clinical entity that may explain progressive pain, decreased quality of life, and impaired function. MRI of OA-BMLs demonstrates a region of subchondral bone with hyperintense marrow signal on T2-weighted images. Histopathology retrieval studies have demonstrated that these lesions correlate with microdamage of the trabecular bone, and subsequently, this leads to a vicious cycle of subchondral bone attrition, attempts at repair, pain, and progressive deformity. These lesions have also been linked to accelerated loss of adjacent articular cartilage and increases in the severity of knee pain, prompting patients to seek musculoskeletal care and treatment. Multiple studies have also correlated the presence of an OA-BML with an increased probability of seeking knee arthroplasty. Knowledge of these lesions is important in the context that knee OA is both a cartilage-based and bone-based disease. Further study of OA-BMLs may provide opportunities for early intervention and OA disease-modifying treatments.
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Cibere J, Guermazi A, Nicolaou S, Esdaile JM, Thorne A, Singer J, Wong H, Kopec JA, Sayre EC. Association of Knee Effusion Detected by Physical Examination With Bone Marrow Lesions: Cross-Sectional and Longitudinal Analyses of a Population-Based Cohort. Arthritis Care Res (Hoboken) 2019; 71:39-45. [PMID: 29648685 DOI: 10.1002/acr.23575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 04/03/2018] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To determine the association of effusion detected by physical examination with the prevalence of bone marrow lesions (BMLs) on magnetic resonance imaging (MRI), and the incidence/progression of BMLs over 3 years in subjects with knee osteoarthritis. METHODS A population-based cohort with knee pain (n = 255) was assessed for effusion on physical examination. On MRI, BMLs were graded 0-3 (none, mild, moderate, severe), and incidence/progression was defined as a worsening of the sum of BML scores over 6 surfaces by ≥1 grade. We analyzed the full cohort and a mild disease subsample with a Kellgren/Lawrence (K/L) grade <3. Cross-sectional logistic and longitudinal exponential regression analyses were performed, adjusted for age, sex, body mass index (BMI) and pain. We calculated sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for effusion detected by physical examination versus BMLs (prevalence and incidence/progression). RESULTS The weighted mean age was 56.7 years, the mean BMI was 26.5, 56.3% were women, 20.1% had effusion on physical examination, and 80.7% had a K/L grade <3. Effusion on physical examination was significantly associated with prevalent BMLs in the full cohort (odds ratio [OR] 6.10 [95% confidence interval (95% CI) 2.77-13.44]) and in the K/L grade <3 cohort (OR 6.88 [95% CI 2.76-17.15]). In the full cohort, sensitivity, specificity, PPV, and NPV were 34.6, 92.5, 79.9, and 62.1%, respectively, and in the K/L <3 cohort 31.7, 94.0, 75.5, and 70.1%, respectively. Longitudinally, effusion on physical examination was not significantly associated with BML incidence/progression in the full cohort (hazard ratio [HR] 1.83 [95% CI 0.95-3.52]) or in the K/L grade <3 cohort (HR 1.73 [95% CI 0.69-4.33]). In the two cohorts, sensitivity, specificity, PPV, and NPV were 32.0, 82.2, 42.2, and 74.9%, respectively, and 21.2, 85.6, 30.1, and 78.8% respectively. CONCLUSION BMLs on MRI can be predicted from physical examination effusion cross-sectionally, with a high PPV of 79.9%. Assessment for knee effusion on physical examination is useful for determining potential candidates with BMLs before costly MRI screening for recruitment into clinical trials.
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Affiliation(s)
- Jolanda Cibere
- Arthritis Research Canada, Richmond, and the University of British Columbia, Vancouver, British Columbia, Canada
| | - Ali Guermazi
- Boston University School of Medicine, Boston, Massachusetts
| | - Savvas Nicolaou
- the University of British Columbia, Vancouver, British Columbia, Canada
| | - John M Esdaile
- Arthritis Research Canada, Richmond, and the University of British Columbia, Vancouver, British Columbia, and the University of Calgary, Calgary, Alberta, Canada
| | - Anona Thorne
- the University of British Columbia, Vancouver, British Columbia, Canada
| | - Joel Singer
- the University of British Columbia, Vancouver, British Columbia, Canada
| | - Hubert Wong
- the University of British Columbia, Vancouver, British Columbia, Canada
| | - Jacek A Kopec
- Arthritis Research Canada, Richmond, and the University of British Columbia, Vancouver, British Columbia, Canada
| | - Eric C Sayre
- Arthritis Research Canada, Richmond, British Columbia, Canada
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Osteoarthritis phenotypes and novel therapeutic targets. Biochem Pharmacol 2019; 165:41-48. [PMID: 30831073 DOI: 10.1016/j.bcp.2019.02.037] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 02/28/2019] [Indexed: 02/07/2023]
Abstract
The success of disease-modifying osteoarthritis drug (DMOAD) development is still elusive. While there have been successes in preclinical and early clinical studies, phase 3 clinical trials have failed so far and there is still no approved, widely available DMOAD on the market. The latest research suggests that, among other causes, poor trial outcomes might be explained by the fact that osteoarthritis (OA) is a heterogeneous disease with distinct phenotypes. OA trials might be more successful if they would address and target a specific phenotype. The increasing availability of advanced techniques to detect particular OA characteristics expands the possibilities to distinguish between such potential OA phenotypes. Magnetic resonance imaging is among the key imaging techniques to stratify and monitor patients with changes in bone, cartilage and inflammation. Biochemical markers have mainly used as secondary parameters and could further delineate phenotypes. Moreover, post-hoc analyses of trial data have suggested the existence of distinct pain phenotypes and their relevance in the design of clinical trials. Although ongoing work in the field supports the concept of OA heterogeneity, this has not yet resulted in more effective treatment options. This paper reviews the current knowledge about potential OA phenotypes and suggests that combining patient clinical data, quantitative imaging, biochemical markers and utilizing data-driven approaches in patient selection and efficacy assessment will allow for more successful development of effective DMOADs.
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Thudium CS, Löfvall H, Karsdal MA, Bay-Jensen AC, Bihlet AR. Protein biomarkers associated with pain mechanisms in osteoarthritis. J Proteomics 2019; 190:55-66. [DOI: 10.1016/j.jprot.2018.04.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 04/16/2018] [Accepted: 04/20/2018] [Indexed: 12/19/2022]
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Oo WM, Yu SPC, Daniel MS, Hunter DJ. Disease-modifying drugs in osteoarthritis: current understanding and future therapeutics. Expert Opin Emerg Drugs 2018; 23:331-347. [PMID: 30415584 DOI: 10.1080/14728214.2018.1547706] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Osteoarthritis (OA) is a leading cause of pain and disability among adults with a current prevalence of around 15% and a predicted prevalence of 35% in 2030 for symptomatic OA. It is increasingly recognized as a heterogeneous multi-faceted joint disease with multi-tissue involvement of varying severity. Current therapeutic regimens for OA are only partially effective and often have significant associated toxicities. There are no disease-modifying drugs approved by the regulatory bodies. Areas covered: We reviewed the opportunities within key OA pathogenetic mechanism: cartilage catabolism/anabolism, pathological remodeling of subchondral bone and synovial inflammation to identify targeted disease-modifying osteoarthritis drugs, based on compounds currently in Phase II and III stages of clinical development in which x-ray and/or MRI was used as the structural outcome with/without symptomatic outcomes according to regulatory requirements. Expert opinion: Given the heterogeneity of the OA disease process and complex overlapping among these phenotypes, a 'one size fits all' approach used in most clinical trials would unlikely be practical and equally effective in all patients, as well as in all anatomical OA sites. On the other hand, it is a challenge to develop a targeted drug with high activity, specificity, potency, and bioavailability in the absence of toxicity for long-term use in this chronic disease of predominantly older adults. Further research and insight into evaluation methods for drug-targeted identification of early OA and specific characterization of phenotypes, improvement of methodological designs, and development/refinement of sensitive imaging and biomarkers will help pave the way to the successful discovery of disease-modifying drugs and the optimal administration strategies in clinical practice.
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Affiliation(s)
- Win Min Oo
- a Rheumatology Department, Royal North Shore Hospital, and, Institute of Bone and Joint Research, Kolling Institute , University of Sydney , Sydney , Australia
| | - Shirley Pei-Chun Yu
- a Rheumatology Department, Royal North Shore Hospital, and, Institute of Bone and Joint Research, Kolling Institute , University of Sydney , Sydney , Australia
| | - Matthew Sean Daniel
- a Rheumatology Department, Royal North Shore Hospital, and, Institute of Bone and Joint Research, Kolling Institute , University of Sydney , Sydney , Australia
| | - David John Hunter
- a Rheumatology Department, Royal North Shore Hospital, and, Institute of Bone and Joint Research, Kolling Institute , University of Sydney , Sydney , Australia
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Zhu Z, Li J, Ruan G, Wang G, Huang C, Ding C. Investigational drugs for the treatment of osteoarthritis, an update on recent developments. Expert Opin Investig Drugs 2018; 27:881-900. [PMID: 30345826 DOI: 10.1080/13543784.2018.1539075] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Osteoarthritis (OA) is the leading cause of pain, loss of function, and disability among elderly, with the knee the most affected joint. It is a heterogeneous condition characterized by complex and multifactorial etiologies which contribute to the broad variation in symptoms presentation and treatment responses that OA patients present. This poses a challenge for the development of effective treatment on OA. AREAS COVERED This review will discuss recent development of agents for the treatment of OA, updating our previous narrative review published in 2015. They include drugs for controlling local and systemic inflammation, regulating articular cartilage, targeting subchondral bone, and relieving pain. EXPERT OPINION Although new OA drugs such as monoclonal antibodies have shown marked effects and favorable tolerance, current treatment options for OA remain limited. The authors believe there is no miracle drug that can be used for all OA patients'; treatment and disease stage is crucial for the effectiveness of drugs. Therefore, early diagnosis, phenotyping OA patients and precise therapy would expedite the development of investigational drugs targeting at symptoms and disease progression of OA.
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Affiliation(s)
- Zhaohua Zhu
- a Clinical Research Centre, Zhujiang Hospital, Southern Medical University , Guangzhou , China
| | - Jia Li
- a Clinical Research Centre, Zhujiang Hospital, Southern Medical University , Guangzhou , China
| | - Guangfeng Ruan
- a Clinical Research Centre, Zhujiang Hospital, Southern Medical University , Guangzhou , China.,b Department of Rheumatology and Immunology , Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University , Hefei , China
| | - Guoliang Wang
- c Menzies Institute for Medical Research, University of Tasmania , Hobart , Australia
| | - Cibo Huang
- d Department of Rheumatology & Immunology , Beijing Hospital , Beijing , China
| | - Changhai Ding
- a Clinical Research Centre, Zhujiang Hospital, Southern Medical University , Guangzhou , China.,b Department of Rheumatology and Immunology , Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University , Hefei , China.,c Menzies Institute for Medical Research, University of Tasmania , Hobart , Australia
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Kloppenburg M, Ramonda R, Bobacz K, Kwok WY, Elewaut D, Huizinga TWJ, Kroon FPB, Punzi L, Smolen JS, Vander Cruyssen B, Wolterbeek R, Verbruggen G, Wittoek R. Etanercept in patients with inflammatory hand osteoarthritis (EHOA): a multicentre, randomised, double-blind, placebo-controlled trial. Ann Rheum Dis 2018; 77:1757-1764. [DOI: 10.1136/annrheumdis-2018-213202] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 08/15/2018] [Accepted: 08/31/2018] [Indexed: 01/27/2023]
Abstract
ObjectiveHand osteoarthritis is a prevalent disease with limited treatment options. Since joint inflammation is often present, we investigated tumour necrosis factor (TNF) as treatment target in patients with proven joint inflammation in a proof-of-concept study.MethodsThis 1-year, double-blind, randomised, multicentre trial (NTR1192) enrolled patients with symptomatic erosive inflammatory hand osteoarthritis. Patients flaring after non-steroidal anti-inflammatory drug washout were randomised to etanercept (24 weeks 50 mg/week, thereafter 25 mg/week) or placebo. The primary outcome was Visual Analogue Scale (VAS) pain at 24 weeks. Secondary outcomes included clinical and imaging outcomes (radiographs scored using Ghent University Scoring System (GUSS, n=54) and MRIs (n=20)).ResultsOf 90 patients randomised to etanercept (n=45) or placebo (n=45), respectively, 12 and 10 discontinued prematurely. More patients on placebo discontinued due to inefficacy (6 vs 3), but fewer due to adverse effects (1 vs 6). The mean between-group difference (MD) in VAS pain was not statistically significantly different (−5.7 (95% CI −15.9 to 4.5), p=0.27 at 24 weeks; − 8.5 (95% CI −18.6 to 1.6), p=0.10 at 1 year; favouring etanercept). In prespecified per-protocol analyses of completers with pain and inflammation at baseline (n=61), MD was −11.8 (95% CI −23.0 to −0.5) (p=0.04) at 1 year. Etanercept-treated joints showed more radiographic remodelling (delta GUSS: MD 2.9 (95% CI 0.5 to 5.4), p=0.02) and less MRI bone marrow lesions (MD −0.22 (95% CI −0.35 to −0.09), p = 0.001); this was more pronounced in joints with baseline inflammation.ConclusionAnti-TNF did not relieve pain effectively after 24 weeks in erosive osteoarthritis. Small subgroup analyses showed a signal for effects on subchondral bone in actively inflamed joints, but future studies to confirm this are warranted.
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Rodrigues TA, Freire AO, Bonfim BF, Cartágenes MSS, Garcia JBS. Strontium ranelate as a possible disease-modifying osteoarthritis drug: a systematic review. Braz J Med Biol Res 2018; 51:e7440. [PMID: 29924137 PMCID: PMC6040865 DOI: 10.1590/1414-431x20187440] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 05/02/2018] [Indexed: 12/20/2022] Open
Abstract
Considering that osteoarthritis (OA) is the most prevalent joint disease worldwide, multiple pharmacological treatments have been proposed to alter the articular structure with potential benefit in the progression of the disease. The so-called disease-modifying OA drugs have been frequently investigated but conclusive findings are rare. Strontium ranelate (SrRan) is a drug usually prescribed to treat osteoporosis, with proven effects in decreasing the risk of fractures and possible effect in reducing the progression of OA. The objective of this review was to demonstrate the current panorama of knowledge on the use of SrRan in clinical and experimental models, clarifying its mechanisms of action and describing possible anti-nociceptive and anti-inflammatory effects. The systematic review was based on the PRISMA statement and included articles that are indexed in scientific databases. Fifteen studies were included: seven pre-clinical and eight clinical studies. Despite the limited number of studies, the results suggest a positive effect of SrRan in patients with OA, through changes in functional capacity and reduction of progression of morphological parameters and joint degradation, with moderate quality of evidence for those clinical outcomes. Novel studies are necessary to elucidate the molecular targets of SrRan, focusing on anti-inflammatory effects and histological changes promoted by SrRan, which seemed to reduce the progression of OA in the experimental and clinical studies.
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Affiliation(s)
- T A Rodrigues
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - A O Freire
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - B F Bonfim
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - M S S Cartágenes
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - J B S Garcia
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
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Huang Z, Ding C, Li T, Yu SPC. Current status and future prospects for disease modification in osteoarthritis. Rheumatology (Oxford) 2018; 57:iv108-iv123. [PMID: 29272498 DOI: 10.1093/rheumatology/kex496] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Indexed: 12/12/2022] Open
Abstract
OA is a chronic, progressive and disabling joint disease, leading to a poor quality of life and an enormous social and economic burden. Current therapies for OA patients remain limited, which creates an area of huge unmet medical need. For some time, researchers have been looking for approaches that can inhibit the structural progression of OA. A variety of potential disease-modifying OA drugs have been developed, targeting cartilage, inflammatory pathways or subchondral bone. In addition, non-pharmacological therapies, including joint distraction and weight loss, draw increasing attention, with some showing disease-modifying potential. Thus we performed a comprehensive review to discuss the current status of disease-modifying therapies in OA and appraise the potentials of emerging novel agents.
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Affiliation(s)
- Zhengping Huang
- Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Changhai Ding
- Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital, Guangzhou, China.,Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia.,Translational Research Centre, Academy of Orthopedics, Guangdong Province and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | - Tianwang Li
- Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Shirley Pei-Chun Yu
- Department of Rheumatology, Royal North Shore Hospital and Institute of Bone and Joint Research, University of Sydney, Sydney, New South Wales, Australia
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Kuah D, Sivell S, Longworth T, James K, Guermazi A, Cicuttini F, Wang Y, Craig S, Comin G, Robinson D, Wilson J. Safety, tolerability and efficacy of intra-articular Progenza in knee osteoarthritis: a randomized double-blind placebo-controlled single ascending dose study. J Transl Med 2018; 16:49. [PMID: 29510712 PMCID: PMC5840781 DOI: 10.1186/s12967-018-1420-z] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 02/18/2018] [Indexed: 01/01/2023] Open
Abstract
Background Cell therapies are being investigated as potential disease modifying treatment options for osteoarthritis (OA). Progenza (PRG) comprises in vitro expanded mesenchymal stem cells derived from human donor adipose tissue combined with cell culture supernatant. The primary objective of this first-in-human study was to evaluate the safety and tolerability of PRG. Methods We conducted a single centre, randomized, double-blind, placebo-controlled, single ascending dose study. Twenty patients aged 40–65 years with symptomatic Kellgren–Lawrence grade 1–3 knee OA were treated in two cohorts and randomized 4:1 to PRG or placebo. Cohort 1: 3.9 million cells (PRG 3.9M, n = 8) or placebo (n = 2) and cohort 2: 6.7 million cells (PRG 6.7M, n = 8) or placebo (n = 2). Each patient received a single intra-articular injection and was followed-up for 12 months. Results The study population comprised 20 patients (placebo, n = 4; PRG 3.9M, n = 8; PRG 6.7M, n = 8). All patients reported at least one treatment-emergent adverse event (TEAE). The majority of events [143/169 (84.6%)] were mild with 34 (20.1%) being considered by the investigator to be treatment related. There were no serious AEs or withdrawals due to AEs during the study. There was a statistically significant within group improvement in VAS pain scores from baseline at all timepoints for the PRG combined group, with highly significant improvements seen at months 3, 6, 9 and 12 (p ≤ 0.005) while VAS pain scores in the placebo group showed marginal improvement. A statistically significant improvement was also seen in WOMAC pain subscale scores from baseline at all timepoints for the PRG combined group while a marginal improvement in the placebo group was not statistically significant. Between screening and month 12, there was no decrease in average lateral tibial cartilage volume in the PRG 3.9M group while the placebo group showed a statistically significant cartilage loss. This difference between the placebo and PRG 3.9M group was statistically significant (LSM difference 106.47 mm3, 95% CI 13.56 mm3, 199.37 mm3, p = 0.028). Conclusion When administered as a single intra-articular injection to patients with symptomatic knee OA, PRG was safe and well tolerated. Furthermore, measurable improvements in symptoms and knee structure outcomes warrant further studies on PRG’s potential for disease modification in OA. Trial registration ANZCTR, ACTRN12615000439549. Date registered: 7th May 2015, https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=368355 Electronic supplementary material The online version of this article (10.1186/s12967-018-1420-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- D Kuah
- Sydney Sportsmed Specialists, Park House, Level 3, 187 Macquarie Street, Sydney, NSW, 2000, Australia.
| | - S Sivell
- Regeneus Ltd, Ground Floor, 25 Bridge St, Pymble, NSW, 2073, Australia
| | - T Longworth
- Sydney Sports Medicine Centre, Level 2, NSWIS Building, 6 Figtree Drive, Sydney Olympic Park, NSW, 2127, Australia
| | - K James
- FNQ Sports Medicine, 225-227 Draper Street, Cairns, QLD, 4870, Australia
| | - A Guermazi
- Quantitative Imaging Center, Department of Radiology, Boston University School of Medicine, Boston, MA, 02118, USA
| | - F Cicuttini
- Department of Epidemiology and Preventative Medicine, School of Public Health and Preventative Medicine, Monash University, The Alfred Hospital, Melbourne, VIC, 3004, Australia
| | - Y Wang
- Department of Epidemiology and Preventative Medicine, School of Public Health and Preventative Medicine, Monash University, The Alfred Hospital, Melbourne, VIC, 3004, Australia
| | - S Craig
- Regeneus Ltd, Ground Floor, 25 Bridge St, Pymble, NSW, 2073, Australia
| | - G Comin
- Department of Radiology, St Vincent's Hospital, 390 Victoria Street, Darlinghurst, NSW, 2010, Australia
| | - D Robinson
- Sydney Sportsmed Specialists, Park House, Level 3, 187 Macquarie Street, Sydney, NSW, 2000, Australia
| | - J Wilson
- Regeneus Ltd, Ground Floor, 25 Bridge St, Pymble, NSW, 2073, Australia
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Muratovic D, Findlay DM, Cicuttini FM, Wluka AE, Lee YR, Kuliwaba JS. Bone matrix microdamage and vascular changes characterize bone marrow lesions in the subchondral bone of knee osteoarthritis. Bone 2018; 108:193-201. [PMID: 29331302 DOI: 10.1016/j.bone.2018.01.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 12/06/2017] [Accepted: 01/09/2018] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Bone marrow lesions (BMLs) in the subchondral bone in osteoarthritis (OA) are suggested to be multifactorial, although the pathogenic mechanisms are unknown. Bone metabolism and cardiovascular risk factors associate with BML in epidemiologic studies. However, there are no studies at the tissue level investigating the relationship between these processes and BML. The aim of this study was to investigate the relationship between BMLs in the tibial plateau (TP) of knee OA and bone matrix microdamage, osteocyte density and vascular changes. METHODS TP were obtained from 73 patients at total knee replacement surgery and BMLs were identified ex vivo in TP tissue using MRI. Comparator 'No BML' tissue was from matched anatomical sites to the BMLs. Quantitative assessment was made of subchondral bone microdamage, bone resorption indices, osteocyte cellularity, and vascular features. RESULTS Several key parameters were different between BML and No BML tissue. These included increased microcrack burden (p = .01, p = .0001), which associated positively with bone resorption and negatively with cartilage volume, and greater osteocyte numerical density (p = .02, p = .01), in the subchondral bone plate and subchondral trabeculae, respectively. The marrow tissue within BML zones contained increased arteriolar density (p = .04, p = .0006), and altered vascular characteristics, in particular increased wall thickness (p = .007) and wall:lumen ratio (wall thickness over internal lumen area) (p = .001), compared with No BML bone. CONCLUSIONS Increased bone matrix microdamage and altered vasculature in the subchondral bone of BMLs is consistent with overloading and vascular contributions to the formation of these lesions. Given the important role of BMLs in knee OA, these contributing factors offer potential targets for the treatment and prevention of knee OA.
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Affiliation(s)
- Dzenita Muratovic
- Discipline of Orthopaedics and Trauma, The University of Adelaide, Adelaide, Australia; Bone and Joint Research Laboratory, SA Pathology, Adelaide, Australia.
| | - David M Findlay
- Discipline of Orthopaedics and Trauma, The University of Adelaide, Adelaide, Australia.
| | - Flavia M Cicuttini
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.
| | - Anita E Wluka
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia.
| | - Yea-Rin Lee
- Discipline of Orthopaedics and Trauma, The University of Adelaide, Adelaide, Australia; Bone and Joint Research Laboratory, SA Pathology, Adelaide, Australia.
| | - Julia S Kuliwaba
- Discipline of Orthopaedics and Trauma, The University of Adelaide, Adelaide, Australia; Bone and Joint Research Laboratory, SA Pathology, Adelaide, Australia.
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Kim JR, Yoo JJ, Kim HA. Therapeutics in Osteoarthritis Based on an Understanding of Its Molecular Pathogenesis. Int J Mol Sci 2018; 19:ijms19030674. [PMID: 29495538 PMCID: PMC5877535 DOI: 10.3390/ijms19030674] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 02/14/2018] [Accepted: 02/21/2018] [Indexed: 12/30/2022] Open
Abstract
Osteoarthritis (OA) is the most prevalent joint disease in older people and is characterized by the progressive destruction of articular cartilage, synovial inflammation, changes in subchondral bone and peri-articular muscle, and pain. Because our understanding of the aetiopathogenesis of OA remains incomplete, we haven’t discovered a cure for OA yet. This review appraises novel therapeutics based on recent progress in our understanding of the molecular pathogenesis of OA, including pro-inflammatory and pro-catabolic mediators and the relevant signalling mechanisms. The changes in subchondral bone and peri-articular muscle accompanying cartilage damage are also reviewed.
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Affiliation(s)
- Ju-Ryoung Kim
- Rheumatology Division, Department of Internal Medicine, Hallym University Sacred Heart Hospital, 896, Pyongchondong, Dongan-gu, Anyang, Kyunggi-do 431-070, Korea.
| | - Jong Jin Yoo
- Department of Internal Medicine, Kangdong Sacred Heart Hospital, Seoul 05355, Korea.
| | - Hyun Ah Kim
- Rheumatology Division, Department of Internal Medicine, Hallym University Sacred Heart Hospital, 896, Pyongchondong, Dongan-gu, Anyang, Kyunggi-do 431-070, Korea.
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44
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Liu C, Liu C, Si L, Shen H, Wang Q, Yao W. Relationship between subchondral bone microstructure and articular cartilage in the osteoarthritic knee using 3T MRI. J Magn Reson Imaging 2018; 48:669-679. [PMID: 29451955 DOI: 10.1002/jmri.25982] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 02/01/2018] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The importance of subchondral bone in the pathogenesis of osteoarthritis (OA) has drawn interest. PURPOSE To investigate subregional trabecular bone microstructural features and to determine the relationship between cartilage and trabecular bone in the osteoarthritic human knee. STUDY TYPE Prospective study. SUBJECTS In all, 92 knees were enrolled and divided into three groups: without OA, mild OA, and severe OA. SEQUENCE A sagittal 3D balanced fast field echo (3D B-FFE) sequence and FatSat 3D fast field echo (3D-FFE) sequence at 3T MRI. ASSESSMENT The trabecular bone in 12 sites of the knee joint was evaluated using digital topological analysis, and the cartilage thickness in four sites was calculated. STATISTICAL TEST Trabecular bone and cartilage parameters between groups were compared using analysis of variance (ANOVA) with Bonferroni adjustment, and their correlations were analyzed using Pearson's correlation coefficient. RESULTS Within both femoral condyles, the trabecular bone structure deteriorated in mild OA, showing a lower bone volume fraction (BVF) (0.15 to 0.12, P < 0.05), higher erosion index (EI) (2.25 to 2.28, P < 0.01), and a lower plate-to-rod ratio (SCR) (6.22 to 5.96, P < 0.05). Within medial and lateral tibia, deterioration in the trabecular bone was also observed, demonstrating a lower BVF (0.15 to 0.12 P < 0.05) and a higher EI (2.25 to 2.61, P < 0.05). Cartilage attrition mainly occurred in the medial joint. Extensive correlations were found between the medial cartilage thickness and subregional trabecular parameters. There was mainly a positive correlation with both femoral BVFs (r > 0.3, P < 0.05), and a negative correlation with the tibia SCR (r < -0.2, P < 0.05). DATA CONCLUSION In the early stage of OA, trabecular bone osteoporotic changes were observed in both femoral condyles and the tibia. Based on a strong correlation with the medial cartilage thickness, the trabecular structural topological analysis may be useful for elucidating OA onset and progression. LEVEL OF EVIDENCE 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2018.
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Affiliation(s)
- Chenglei Liu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Chang Liu
- Med-X Research Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Liping Si
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hao Shen
- Department of Joint Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Qian Wang
- Med-X Research Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Weiwu Yao
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Alterations of Subchondral Bone Progenitor Cells in Human Knee and Hip Osteoarthritis Lead to a Bone Sclerosis Phenotype. Int J Mol Sci 2018; 19:ijms19020475. [PMID: 29415458 PMCID: PMC5855697 DOI: 10.3390/ijms19020475] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 01/23/2018] [Accepted: 01/26/2018] [Indexed: 02/06/2023] Open
Abstract
Subchondral bone tissue plays a key role in the initiation and progression of human and experimental osteoarthritis and has received considerable interest as a treatment target. Elevated bone turnover and remodeling leads to subchondral bone sclerosis that is characterized by an increase in bone material that is less mineralized. The aim of this study was to investigate whether perturbations in subchondral bone-resident progenitor cells might play a role in aberrant bone formation in osteoarthritis. Colony formation assays indicated similar clonogenicity of progenitor cells from non-sclerotic and sclerotic subchondral trabecular bone tissues of osteoarthritic knee and hip joints compared with controls from iliac crest bone. However, the osteogenic potential at the clonal level was approximately two-fold higher in osteoarthritis than controls. An osteogenic differentiation assay indicated an efficient induction of alkaline phosphatase activity but blunted in vitro matrix mineralization irrespective of the presence of sclerosis. Micro-computed tomography and histology demonstrated the formation of de novo calcified tissues by osteoblast-like cells in an ectopic implantation model. The expression of bone sialoprotein, a marker for osteoblast maturation and mineralization, was significantly less in sclerotic progenitor cells. Perturbation of resident progenitor cell function is associated with subchondral bone sclerosis and may be a treatment target for osteoarthritis.
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46
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Liu C, Liu C, Ren X, Si L, Shen H, Wang Q, Yao W. Quantitative evaluation of subchondral bone microarchitecture in knee osteoarthritis using 3T MRI. BMC Musculoskelet Disord 2017; 18:496. [PMID: 29179754 PMCID: PMC5704369 DOI: 10.1186/s12891-017-1865-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 11/20/2017] [Indexed: 01/17/2023] Open
Abstract
Background Osteoarthritis (OA) is now increasingly recognized as being related to the whole joint instead of the cartilage alone. In particular, the importance of subchondral bone in OA pathogenesis has drawn a lot of interest. The aim of this study is to investigate subchondral bone microstructural features in two femoral condyles of human knee osteoarthritis. Methods Eighty subjects were enrolled in our study and divided into three groups: without OA (group 0), mild OA (group 1), and severe OA (group 2). Sagittal 3D Balanced Fast Field Echo (3D–FFE) images were obtained by 3T MRI to quantify trabecular bone structure, and sagittal FatSat 3D Fast Field Echo (3D–FFE) images were acquired to assess cartilage thickness. Trabecular bone parameters, including bone volume fraction (BVF), erosion index (EI) and the trabecular plate-to-rod ratio (SCR), and trabecular thickness were evaluated using digital topological analysis. Subchondral bone and cartilage parameters between different groups and different locations were compared, and their correlations were analyzed. Results Within two femoral condyles, subchondral bone structure was deteriorated in mild OA, showing a lower BVF (−0.011 to −0.014 P < 0.001), a higher EI (0.346 to 0.310 P < 0.001), a lower SCR (−0.581 to −0.542 P < 0.001)) and lower trabecular thickness (−6.588 to −4.759 P < 0.05). In severe OA, BVF was further decreased, but EI, SCR and trabecular thickness showed no significant difference than mild OA(P > 0.05). Moreover, there was a lower BVF, SCR and higher EI in the medial femoral condyle in each group. Interestingly, cartilage attrition mainly occurred in the medial femoral condyle. Medial cartilage thickness was not only positively correlated with the ipsilateral femoral BVF (r = 0.321 P = 0.004) but also with the opposite femoral BVF (r = 0.270 P = 0.015). Conclusions Our results indicated that deterioration in the trabecular bone structure in both femoral condyles could more sensitively reveal early OA, and BVF could be a better biomarker to evaluate OA severity.
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Affiliation(s)
- Chenglei Liu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Chang Liu
- Med-X Research Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Xvhua Ren
- Med-X Research Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Liping Si
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hao Shen
- Department of Joint Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Qian Wang
- Med-X Research Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Weiwu Yao
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
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Li MH, Xiao R, Li JB, Zhu Q. Regenerative approaches for cartilage repair in the treatment of osteoarthritis. Osteoarthritis Cartilage 2017; 25:1577-1587. [PMID: 28705606 DOI: 10.1016/j.joca.2017.07.004] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 06/09/2017] [Accepted: 07/01/2017] [Indexed: 02/06/2023]
Abstract
Osteoarthritis (OA) as a debilitating affliction of joints currently affects millions of people and remains an unsolved problem. The disease involves multiple cellular and molecular pathways that converge on the progressive destruction of cartilage. Activation of cartilage regenerative potential and specific targeting pathogenic mediators have been the major focus of research efforts aimed at slowing the progression of cartilage degeneration and preserve joint function. This review will summarize recent key discoveries toward better understanding of the complex mechanisms behind OA development and highlight the latest advances in basic and clinical research in the approach for cartilage regeneration. Prospectively, more potent therapeutic strategies against progressive cartilage deterioration may use a combination of cytotherapy, pharmacotherapy, and bioscaffoldings for improved chondrogenic differentiation and stem/progenitor cell homing as well as the concomitant reduced enzymatic matrix degradation and inflammation. Further, treatments need to be provided with increased preciseness of targeted therapy. One might expect that the regenerative therapies could potentially control or even possibly cure OA if performed at early stages of the disease.
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Affiliation(s)
- M H Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - R Xiao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J B Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Q Zhu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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48
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Hügle T, Geurts J. What drives osteoarthritis?-synovial versus subchondral bone pathology. Rheumatology (Oxford) 2017; 56:1461-1471. [PMID: 28003493 DOI: 10.1093/rheumatology/kew389] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Indexed: 12/16/2022] Open
Abstract
Subchondral bone and the synovium play an important role in the initiation and progression of OA. MRI often permits an early detection of synovial hypertrophy and bone marrow lesions, both of which can precede cartilage damage. Newer imaging modalities including CT osteoabsorptiometry and hybrid SPECT-CT have underlined the importance of bone in OA pathogenesis. The subchondral bone in OA undergoes an uncoupled remodelling process, which is notably characterized by macrophage infiltration and osteoclast formation. Concomitant increased osteoblast activity leads to spatial remineralization and osteosclerosis in end-stage disease. A plethora of metabolic and mechanical factors can lead to synovitis in OA. Synovial tissue is highly vascularized and thus exposed to systemic influences such as hypercholesterolaemia or low grade inflammation. This review aims to describe the current understanding of synovitis and subchondral bone pathology and their connection in OA.
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Affiliation(s)
- Thomas Hügle
- Osteoarthritis Research Center Basel.,Department of Rheumatology
| | - Jeroen Geurts
- Osteoarthritis Research Center Basel.,Spine Surgery, University Hospital Basel, Basel, Switzerland
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49
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Targeting subchondral bone mesenchymal stem cell activities for intrinsic joint repair in osteoarthritis. Future Sci OA 2017; 3:FSO228. [PMID: 29134116 PMCID: PMC5674229 DOI: 10.4155/fsoa-2017-0055] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 06/02/2017] [Indexed: 12/14/2022] Open
Abstract
Osteoarthritis (OA) is a common age-related disease with complex pathophysiology. It is characterized by wide-ranging tissue damage and ultimate biomechanical failure of the whole joint. However, signs of tissue adaptation and attempted repair responses are evident in OA-affected osteochondral tissues. Highlighted in this review article is the role of bone-resident mesenchymal stem cells (MSCs) in these bone remodeling responses, and a proposal that targeting MSC activities in OA subchondral bone could represent a novel approach for intrinsic joint regeneration in OA. The development of these therapies will require better understanding of MSC proliferation, migration and differentiation patterns in relation to OA tissue damage and further clarification of the molecular signaling events in these MSCs during disease progression. Osteoarthritis (OA) is a joint disorder, in which the cartilage, the underlying bone and other joint tissues are affected. Recent evidence demonstrating attempted repair responses in these OA tissues challenges the traditional view of OA as a degenerative disorder. Signs of tissue regeneration are particularly evident in the bone located directly underneath the damaged cartilage, where increased stem cell activity has been observed. Targeting these stem cells could represent a novel approach for intrinsic joint regeneration in OA. To progress with developing these novel therapies, a better understanding of stem cell function in normal and OA joint tissues is needed.
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50
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Rodrigues TA, Sampaio AJB, Nunes IDP, Cartágenes MSS, Garcia JBS. Effect of strontium ranelate on pain behavior in an experimental model of osteoarthritis. Braz J Med Biol Res 2017; 50:e6314. [PMID: 28793056 PMCID: PMC5572847 DOI: 10.1590/1414-431x20176314] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 06/12/2017] [Indexed: 01/12/2023] Open
Abstract
Strontium ranelate (SrRan) is a drug usually prescribed to treat osteoporosis, with proven effects of decreasing the risk of fractures and an indication of reducing the progression of osteoarthritis (OA). This study aimed to investigate the effects of SrRan as either a prophylactic or a treatment drug, using an OA rat model to assess pain behavior. A monoiodoacetate (MIA)-induced knee joint OA model in Wistar rats was used. Thirty Wistar rats (both sexes, 60 days old) were distributed in five groups of 6 rats each: the control group, that received no intervention; a prophylactic group, that received oral administration of 25 mg·kg-1·day-1 of SrRan for 28 days before induction of OA; a group treated with 25 mg·kg-1·day-1 of SrRan for 28 days after OA induction; a group treated with 50 mg·kg-1·day-1 during 28 days after OA induction; and a group that received oral saline for 28 days after induction. The assessment of pain behavior was performed considering articular incapacitation (weight-bearing test), mechanical hyperalgesia (Randall Selitto test) and motor activity (rotarod test), on days 0, 7, 14, 21, and 28. This experiment did not yield a significant difference when comparing the group that received SrRan prophylactically with the groups treated with 25 or 50 mg·kg-1·day-1 and the group that received oral saline. Thus, SrRan did not provide analgesia in either treated rats or as a prophylactic drug with the tested doses. Higher doses should be tested further to achieve possible significant results.
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Affiliation(s)
- T A Rodrigues
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - A J B Sampaio
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - I D P Nunes
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - M S S Cartágenes
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
| | - J B S Garcia
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão, São Luís, MA, Brasil
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