1001
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Almhdie-Imjabbar A, Podsiadlo P, Ljuhar R, Jennane R, Nguyen KL, Toumi H, Saarakkala S, Lespessailles E. Trabecular bone texture analysis of conventional radiographs in the assessment of knee osteoarthritis: review and viewpoint. Arthritis Res Ther 2021; 23:208. [PMID: 34362427 PMCID: PMC8344203 DOI: 10.1186/s13075-021-02594-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/28/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Trabecular bone texture analysis (TBTA) has been identified as an imaging biomarker that provides information on trabecular bone changes due to knee osteoarthritis (KOA). Consequently, it is important to conduct a comprehensive review that would permit a better understanding of this unfamiliar image analysis technique in the area of KOA research. We examined how TBTA, conducted on knee radiographs, is associated to (i) KOA incidence and progression, (ii) total knee arthroplasty, and (iii) KOA treatment responses. The primary aims of this study are twofold: to provide (i) a narrative review of the studies conducted on radiographic KOA using TBTA, and (ii) a viewpoint on future research priorities. METHOD Literature searches were performed in the PubMed electronic database. Studies published between June 1991 and March 2020 and related to traditional and fractal image analysis of trabecular bone texture (TBT) on knee radiographs were identified. RESULTS The search resulted in 219 papers. After title and abstract scanning, 39 studies were found eligible and then classified in accordance to six criteria: cross-sectional evaluation of osteoarthritis and non-osteoarthritis knees, understanding of bone microarchitecture, prediction of KOA progression, KOA incidence, and total knee arthroplasty and association with treatment response. Numerous studies have reported the relevance of TBTA as a potential bioimaging marker in the prediction of KOA incidence and progression. However, only a few studies have focused on the association of TBTA with both OA treatment responses and the prediction of knee joint replacement. CONCLUSION Clear evidence of biological plausibility for TBTA in KOA is already established. The review confirms the consistent association between TBT and important KOA endpoints such as KOA radiographic incidence and progression. TBTA could provide markers for enrichment of clinical trials enhancing the screening of KOA progressors. Major advances were made towards a fully automated assessment of KOA.
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Affiliation(s)
- Ahmad Almhdie-Imjabbar
- EA 4708- I3MTO Laboratory, University of Orleans, Orleans, France
- Translational Medicine Research Platform, PRIMMO, Regional Hospital of Orleans, Orleans, France
| | - Pawel Podsiadlo
- Tribology Laboratory, School of Civil and Mechanical Engineering, Curtin University, Bentley, WA, 6102, Australia
| | | | - Rachid Jennane
- EA 4708- I3MTO Laboratory, University of Orleans, Orleans, France
- Translational Medicine Research Platform, PRIMMO, Regional Hospital of Orleans, Orleans, France
| | - Khac-Lan Nguyen
- EA 4708- I3MTO Laboratory, University of Orleans, Orleans, France
- Translational Medicine Research Platform, PRIMMO, Regional Hospital of Orleans, Orleans, France
| | - Hechmi Toumi
- EA 4708- I3MTO Laboratory, University of Orleans, Orleans, France
- Translational Medicine Research Platform, PRIMMO, Regional Hospital of Orleans, Orleans, France
- Department of Rheumatology, Regional Hospital of Orleans, Orleans, France
| | - Simo Saarakkala
- Physics and Technology, Research Unit of Medical Imaging, University of Oulu, Oulu, Finland
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | - Eric Lespessailles
- EA 4708- I3MTO Laboratory, University of Orleans, Orleans, France.
- Translational Medicine Research Platform, PRIMMO, Regional Hospital of Orleans, Orleans, France.
- Department of Rheumatology, Regional Hospital of Orleans, Orleans, France.
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1002
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Gonzalez-Franquesa A, Peijs L, Cervone DT, Koçana C, Zierath JR, Deshmukh AS. Insulin and 5-Aminoimidazole-4-Carboxamide Ribonucleotide (AICAR) Differentially Regulate the Skeletal Muscle Cell Secretome. Proteomes 2021; 9:37. [PMID: 34449730 PMCID: PMC8396280 DOI: 10.3390/proteomes9030037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/09/2021] [Accepted: 07/23/2021] [Indexed: 12/13/2022] Open
Abstract
Skeletal muscle is a major contributor to whole-body glucose homeostasis and is an important endocrine organ. To date, few studies have undertaken the large-scale identification of skeletal muscle-derived secreted proteins (myokines), particularly in response to stimuli that activate pathways governing energy metabolism in health and disease. Whereas the AMP-activated protein kinase (AMPK) and insulin-signaling pathways have received notable attention for their ability to independently regulate skeletal muscle substrate metabolism, little work has examined their ability to re-pattern the secretome. The present study coupled the use of high-resolution MS-based proteomics and bioinformatics analysis of conditioned media derived from 5-aminoimidazole-4-carboxamide ribonucleotide (AICAR-an AMPK activator)- and insulin-treated differentiated C2C12 myotubes. We quantified 858 secreted proteins, including cytokines and growth factors such as fibroblast growth factor-21 (Fgf21). We identified 377 and 118 proteins that were significantly altered by insulin and AICAR treatment, respectively. Notably, the family of insulin growth factor binding-proteins (Igfbp) was differentially regulated by each treatment. Insulin- but not AICAR-induced conditioned media increased the mitochondrial respiratory capacity of myotubes, potentially via secreted factors. These findings may serve as an important resource to elucidate secondary metabolic effects of insulin and AICAR stimulation in skeletal muscle.
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Affiliation(s)
- Alba Gonzalez-Franquesa
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, 2200 Copenhagen, Denmark; (A.G.-F.); (L.P.); (D.T.C.); (C.K.); (J.R.Z.)
| | - Lone Peijs
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, 2200 Copenhagen, Denmark; (A.G.-F.); (L.P.); (D.T.C.); (C.K.); (J.R.Z.)
| | - Daniel T. Cervone
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, 2200 Copenhagen, Denmark; (A.G.-F.); (L.P.); (D.T.C.); (C.K.); (J.R.Z.)
| | - Ceren Koçana
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, 2200 Copenhagen, Denmark; (A.G.-F.); (L.P.); (D.T.C.); (C.K.); (J.R.Z.)
| | - Juleen R. Zierath
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, 2200 Copenhagen, Denmark; (A.G.-F.); (L.P.); (D.T.C.); (C.K.); (J.R.Z.)
- Integrative Physiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Atul S. Deshmukh
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, 2200 Copenhagen, Denmark; (A.G.-F.); (L.P.); (D.T.C.); (C.K.); (J.R.Z.)
- Clinical Proteomics, Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, 2200 Copenhagen, Denmark
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1003
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Alvarez B, Montero A, Hernando O, Ciervide R, Garcia J, Lopez M, Garcia-Aranda M, Chen X, Flores I, Sanchez E, Valero J, Prado A, Alonso R, Alonso L, Fernandez-Leton P, Rubio C. Radiotherapy CT-based contouring atlas for non-malignant skeletal and soft tissue disorders: a practical proposal from Spanish experience. Br J Radiol 2021; 94:20200809. [PMID: 34282948 PMCID: PMC8764913 DOI: 10.1259/bjr.20200809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 05/26/2021] [Accepted: 06/08/2021] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE Interest in low-dose radiotherapy (LD-RT) for the symptomatic treatment of nonmalignant conditions, including inflammatory and degenerative disorders of the joints and para-articular soft tissues, has increased substantially in recent years. In the present document, we provide a CT-based contouring atlas to help identify and delineate the most common osteoarticular regions susceptible to LD-RT. METHODS The clinical efficacy of LD-RT is supported by a large body of evidence. However, there is no consensus on the parameters for contouring the planning target volume (PTV). Moreover, 3D simulation and planning should be the standard of care even for nonmalignant disorders. For this reason, the present guidelines were prepared to help guide PTV contouring based on CT images, with the same quality criteria for patient immobilization, treatment simulation, planning and delivery as those routinely applied for cancer radiotherapy. RESULTS PTV for radiotherapy requires precise identification of the target areas based on CT and other imaging techniques. Using a series of cases treated at our institution, we have defined the PTVs for each location on the simulation CT to establish the relationship between the image and the anatomical structures to be treated. We also specify the immobilization systems used to ensure treatment accuracy and reproducibility. CONCLUSIONS This comprehensive atlas based on CT images may be of value to radiation oncologists who wish to use LD-RT for the symptomatic treatment of degenerative or inflammatory osteoarticular diseases. ADVANCES IN KNOWLEDGE The recommendations and contouring atlas described in this article provide an eminently practical tool for LD-RT in non-malignant conditions, based on the same quality criteria recommended for all modern radiotherapy treatments in Spain.
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Affiliation(s)
- Beatriz Alvarez
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
| | - Angel Montero
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
| | - Ovidio Hernando
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
| | - Raquel Ciervide
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
| | - Juan Garcia
- Department of Medical Physics, HM Hospitales, Madrid, Spain
| | - Mercedes Lopez
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
| | | | - Xin Chen
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
| | - Ines Flores
- Department of Medical Physics, HM Hospitales, Madrid, Spain
| | - Emilio Sanchez
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
| | | | | | - Rosa Alonso
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
| | - Leyre Alonso
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
| | | | - Carmen Rubio
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
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1004
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Egerton T, McLachlan L, Graham B, Bolton J, Setchell J, Short CE, Bryant C, Bennell KL. How do people with knee pain from osteoarthritis respond to a brief video delivering empowering education about the condition and its management? PATIENT EDUCATION AND COUNSELING 2021; 104:2018-2027. [PMID: 33531156 DOI: 10.1016/j.pec.2021.01.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 01/06/2021] [Accepted: 01/09/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To evaluate responses by people with knee osteoarthritis to a brief educational video about their condition that aimed to empower and motivate effective self-management. The video content addressed psychosocial contributors to pain and barriers to behaviour change. METHODS A mixed methods design, including a survey and semi-structured interviews, was used to collect data from 118 people (46-83 years, 78% female) with knee osteoarthritis. RESULTS Quantitative data analysis showed the video was rated positively on 0-6 scales for enjoyability (mean 5.0), helpfulness (4.9), relevance (5.0) and believability (5.4). The majority would recommend the video (89%), learned new information (78%) and/or reported intentions to change behaviour (78%). A minority disliked aspects of the video (23%). The thematic analyses identified three main themes: Reactions to the video, including emotions; Learning from the video, including new knowledge and empowerment, but also unmet information needs or disagreement; and Intentions, including behaviour changes, cognitive changes and help seeking. CONCLUSION Education about knee osteoarthritis with a focus on empowerment is well received by people with the condition, although some discordant views emerged. PRACTICE IMPLICATIONS The educational video about knee osteoarthritis can be recommended to promote effective self-management and counteract potential drawbacks associated with biomedical-based education.
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Affiliation(s)
- Thorlene Egerton
- Centre for Health, Exercise & Sports Medicine, Physiotherapy Department, The University of Melbourne, Melbourne, Australia.
| | - Liam McLachlan
- School of Health & Rehabilitation Sciences, The University of Queensland, Brisbane, Australia; The Kenneth G Jamison Department of Neurosurgery, Royal Brisbane and Women's Hospital, Australia
| | - Bridget Graham
- Centre for Health, Exercise & Sports Medicine, Physiotherapy Department, The University of Melbourne, Melbourne, Australia
| | - Joanne Bolton
- Centre for Health, Exercise & Sports Medicine, Physiotherapy Department, The University of Melbourne, Melbourne, Australia
| | - Jenny Setchell
- School of Health & Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
| | - Camille E Short
- Melbourne Centre for Behaviour Change, Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, Australia; Melbourne School of Health Sciences, The University of Melbourne, Melbourne, Australia
| | - Christina Bryant
- Melbourne Centre for Behaviour Change, Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, Australia
| | - Kim L Bennell
- Centre for Health, Exercise & Sports Medicine, Physiotherapy Department, The University of Melbourne, Melbourne, Australia
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1005
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Rohman ML, Snow M. Use of biologics in rotator cuff disorders: Current concept review. J Clin Orthop Trauma 2021; 19:81-88. [PMID: 34099971 PMCID: PMC8165426 DOI: 10.1016/j.jcot.2021.05.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 01/08/2023] Open
Abstract
Poor tendon to bone healing following rotator cuff repair has led to the continued interest and investigation into biological augmentation. The biology of tendinopathy is not fully understood and consequently the availability of disease modifying therapeutic targets is limited. A ceiling of benefit has been reached by mechanical optimisation of rotator cuff repair and thus, in order to improve healing rates, a biological solution is required. This review focuses on the strategies to biologically augment rotator cuff disorders with an emphasis on rotator cuff repair. Leucocyte rich platelet rich plasma has been shown to improve healing rates without clinically relevant improvements in outcome scores. Similarly, improved healing rates have also been reported with bone marrow stimulation and in long-term follow-up with bone marrow concentrate. Extracellular matrix (ECM) and synthetic scaffolds can increase healing through mechanical and or biological augmentation. A potential third category of scaffold is bio-inductive and has no mechanical support. Studies involving various scaffolds have shown promising results for augmentation of large to massive tears and is likely to be most beneficial when tendon quality is poor, however level I evidence is limited.
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Affiliation(s)
| | - Martyn Snow
- The Royal Orthopaedic Hospital, Birmingham, United Kingdom
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1006
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Javadinia SA, Nazeminezhad N, Ghahramani-Asl R, Soroosh D, Fazilat-Panah D, PeyroShabany B, Saberhosseini SN, Mehrabian A, Taghizadeh-Hesary F, Nematshahi M, Dhawan G, Welsh JS, Calabrese EJ, Kapoor R. Low-dose radiation therapy for osteoarthritis and enthesopathies: a review of current data. Int J Radiat Biol 2021; 97:1352-1367. [PMID: 34259615 DOI: 10.1080/09553002.2021.1956000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Osteoarthritis (OA), the most common degenerative joint disease, is associated with severe functional limitation and impairment of quality of life. Numerous reports have documented the clinical efficacy of low-dose radiotherapy (LD-RT) in the management of various inflammatory disorders, including OA. In this paper, we assessed the clinical literature involving the use of LD-RT in the treatment of OA, its dose-response features, possible underlying mechanistic features, and optimal therapeutic dose range. METHODS We carried out a systematic review based on the guidelines of the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) statements and evaluated articles meeting the inclusion criteria for this review. RESULTS A total of 361 articles were identified from databases, such as Scopus, PubMed, Embase, and Science Direct out of which 224 articles were duplicates and were discarded. Of the remaining 137 articles, 74 articles were un-related, 27 articles were review articles, eight were conference abstracts, three were letters, two were editorials, two were notes, and one was a book chapter. Finally, 20 articles met all the inclusion criteria and were included in this systematic review. DISCUSSION Several single-arm retrospective/prospective studies showed advantages for LD-RT in the management of OA in terms of pain relief, improvement of mobility and function, and showed minimal side effects. Mechanistic considerations involve positive subcellular effects mediated by the activation of a nuclear factor erythroid 2-related transcription factor (Nrf2) mediated antioxidant response. Further research on both the short- and long-term effects of LD-RT on OA and other inflammatory disorders is recommended.
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Affiliation(s)
- Seyed Alireza Javadinia
- Clinical Research Development Unit, Hospital Research Development Committee, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | | | - Ruhollah Ghahramani-Asl
- Clinical Research Development Unit, Hospital Research Development Committee, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Davood Soroosh
- Clinical Research Development Unit, Hospital Research Development Committee, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | | | - Babak PeyroShabany
- Department of Internal Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | | | - Arezoo Mehrabian
- Research Committee, Iran University of Medical Sciences, Tehran, Iran
| | | | - Mohammad Nematshahi
- Department of Anesthesiology and Critical Care, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Gaurav Dhawan
- Sri Guru Ram Das University of Health Sciences, Amritsar, India
| | - James S Welsh
- Edward Hines Jr. VA Hospital, Loyola University Chicago Stritch School of Medicine, Chicago, IL, USA
| | - Edward J Calabrese
- Department of Environmental Health Sciences, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA, USA
| | - Rachna Kapoor
- Saint Francis Hospital and Medical Center, Hartford, CT, USA
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1007
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Zacharia B, Pai PK, Paul M. Focus Group Discussion as a Tool to Assess Patient-Based Outcomes, Practical Tips for Conducting Focus Group Discussion for Medical Students-Learning With an Example. J Patient Exp 2021; 8:23743735211034276. [PMID: 34368434 PMCID: PMC8317240 DOI: 10.1177/23743735211034276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Patient-based outcomes (patient-reported outcomes) of any intervention can change according to factors like age, gender, region, culture, education, and socioeconomic status. Most of the available outcome measuring tools have a surgeon-related bias. Focus group discussion (FGD) is a simple and effective way to assess the outcome of an intervention. In FGD, people from similar backgrounds and experiences discuss a specific topic of interest. Our objective is to discuss the problems of common outcome measuring tools for patient satisfaction and to understand the method of conducting an FGD. We have set our own published article on patient-based outcomes after total knee arthroplasty (TKA) as an example for explaining the method of conducting an FGD. The planning, advantages, disadvantages, practicalities, and problems of conducting an FGD are explained. In conclusion, many of the tools used for assessing patient satisfaction is surgeon-centered. Focus group discussion is simple, cost-effective, requiring a small number of participants, and can be completed in a short period. It is an effective tool for assessing patient-based outcomes in TKA.
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Affiliation(s)
- Balaji Zacharia
- Department of Orthopedics, Government Medical College, Kozhikode, Kerala, India
| | | | - Manu Paul
- Department of Surgical Oncology, Regional Cancer Center, Trivandrum, Kerala, India
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1008
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Craciunescu O, Icriverzi M, Florian PE, Roseanu A, Trif M. Mechanisms and Pharmaceutical Action of Lipid Nanoformulation of Natural Bioactive Compounds as Efficient Delivery Systems in the Therapy of Osteoarthritis. Pharmaceutics 2021; 13:1108. [PMID: 34452068 PMCID: PMC8399940 DOI: 10.3390/pharmaceutics13081108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/16/2021] [Accepted: 07/19/2021] [Indexed: 12/13/2022] Open
Abstract
Osteoarthritis (OA) is a degenerative joint disease. An objective of the nanomedicine and drug delivery systems field is to design suitable pharmaceutical nanocarriers with controllable properties for drug delivery and site-specific targeting, in order to achieve greater efficacy and minimal toxicity, compared to the conventional drugs. The aim of this review is to present recent data on natural bioactive compounds with anti-inflammatory properties and efficacy in the treatment of OA, their formulation in lipid nanostructured carriers, mainly liposomes, as controlled release systems and the possibility to be intra-articularly (IA) administered. The literature regarding glycosaminoglycans, proteins, polyphenols and their ability to modify the cell response and mechanisms of action in different models of inflammation are reviewed. The advantages and limits of using lipid nanoformulations as drug delivery systems in OA treatment and the suitable route of administration are also discussed. Liposomes containing glycosaminoglycans presented good biocompatibility, lack of immune system activation, targeted delivery of bioactive compounds to the site of action, protection and efficiency of the encapsulated material, and prolonged duration of action, being highly recommended as controlled delivery systems in OA therapy through IA administration. Lipid nanoformulations of polyphenols were tested both in vivo and in vitro models that mimic OA conditions after IA or other routes of administration, recommending their clinical application.
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Affiliation(s)
- Oana Craciunescu
- National Institute of R&D for Biological Sciences, 296 Splaiul Independentei, 060031 Bucharest, Romania;
| | - Madalina Icriverzi
- The Institute of Biochemistry of the Romanian Academy, 296 Splaiul Independentei, 060031 Bucharest, Romania; (M.I.); (P.E.F.); (A.R.)
| | - Paula Ecaterina Florian
- The Institute of Biochemistry of the Romanian Academy, 296 Splaiul Independentei, 060031 Bucharest, Romania; (M.I.); (P.E.F.); (A.R.)
| | - Anca Roseanu
- The Institute of Biochemistry of the Romanian Academy, 296 Splaiul Independentei, 060031 Bucharest, Romania; (M.I.); (P.E.F.); (A.R.)
| | - Mihaela Trif
- The Institute of Biochemistry of the Romanian Academy, 296 Splaiul Independentei, 060031 Bucharest, Romania; (M.I.); (P.E.F.); (A.R.)
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1009
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Chang YM, Menges S, Westhof A, Kleinschmidt-Doerr K, Brenneis C, Pitsillides AA. Systematic analysis reveals that colony housing aligns gait profiles and strengthens link between histological and micro-CT bone markers in rat models of osteoarthritis. FASEB J 2021; 35:e21451. [PMID: 33683776 DOI: 10.1096/fj.202002009r] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/01/2021] [Accepted: 02/01/2021] [Indexed: 11/11/2022]
Abstract
Osteoarthritis (OA) etiopathogenesis is complex with strong environmental/lifestyle determinants that, in laboratory animals, extend to social context and stress levels. This study seeks to identify whether colony housing of rats exerts a social impact on locomotion behaviors to influence alignment between symptomatic (gait) and structural (bone micro-CT measures, cartilage morphometry, and histology) OA outcome measures. Rats were randomly allocated to conventional (type IV; n = 48) or rat colony cage (RCC; n = 30) housing, further randomized to OA surgical models (ACLT + tMx, MMT or DMM) or no surgery (control), and maintained for 19 weeks during which multiple gait recordings were made. Standard histological grading and bone micro-CT data were collected at necropsy. Principal component analysis was used to summarize the variation in gait, micro-CT or histology. Linear mixed effects model or two-way ANOVA was employed to evaluate the impact of the housing system, surgery and time on gait, or micro-CT and histology components Analyses reveal that RCC exaggerates trends in gait change via a combined effect of the housing system and surgery. Intriguingly, RCC-housed nonoperated control rats showed similar gait changes to rats subjected to surgery; the latter exhibited significant structural joint changes in both systems. Stronger correlation between histological and micro-CT bone changes were found in medial and lateral tibia joint compartments of rats housed in RCC system. This study has established that rat social housing exaggerates outcomes in traditional histological measures of OA, generates stronger links between histology and micro-CT bone changes and removes gait differences as a variable in their etiology.
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Affiliation(s)
- Yu-Mei Chang
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
| | | | | | | | | | - Andrew A Pitsillides
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
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1010
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Tschon M, Contartese D, Pagani S, Borsari V, Fini M. Gender and Sex Are Key Determinants in Osteoarthritis Not Only Confounding Variables. A Systematic Review of Clinical Data. J Clin Med 2021; 10:3178. [PMID: 34300344 PMCID: PMC8303951 DOI: 10.3390/jcm10143178] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/08/2021] [Accepted: 07/16/2021] [Indexed: 12/15/2022] Open
Abstract
Many risk factors for osteoarthritis (OA) have been noted, while gender/sex differences have been understated. The work aimed to systematically review literature investigating as primary aim the relationship between gender/sex related discriminants and OA. The search was performed in PubMed, Science Direct and Web of Knowledge in the last 10 years. Inclusion criteria were limited to clinical studies of patients affected by OA in any joints, analyzing as primary aim gender/sex differences. Exclusion criteria were review articles, in vitro, in vivo and ex vivo studies, case series studies and papers in which gender/sex differences were adjusted as confounding variable. Of the 120 records screened, 42 studies were included. Different clinical outcomes were analyzed: morphometric differences, followed by kinematics, pain, functional outcomes after arthroplasty and health care needs of patients. Women appear to use more health care, have higher OA prevalence, clinical pain and inflammation, decreased cartilage volume, physical difficulty, and smaller joint parameters and dimensions, as compared to men. No in-depth studies or mechanistic studies analyzing biomarker differential expressions, molecular pathways and omic profiles were found that might drive preclinical and clinical research towards sex-/gender-oriented protocols.
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Affiliation(s)
| | - Deyanira Contartese
- Surgical Sciences and Tecnologies, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy; (M.T.); (S.P.); (V.B.); (M.F.)
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1011
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Takahashi I, Takeda K, Matsuzaki T, Kuroki H, Hoso M. Reduction of knee joint load suppresses cartilage degeneration, osteophyte formation, and synovitis in early-stage osteoarthritis using a post-traumatic rat model. PLoS One 2021; 16:e0254383. [PMID: 34270585 PMCID: PMC8284605 DOI: 10.1371/journal.pone.0254383] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 06/16/2021] [Indexed: 02/05/2023] Open
Abstract
The purpose of this study was to clarify the histological effect of reducing the loading to knee on cartilage degeneration, osteophyte formation, and synovitis in early-stage osteoarthritis (OA) using a post-traumatic rat model. Ten male rats were randomly allocated into two experimental groups: OA induction by surgical destabilization of medial meniscus (DMM, OA group) and hindlimb suspension after OA induction by DMM (OAHS group). The articular cartilage, osteophyte formation, and synovial membrane in the medial tibiofemoral joint were analyzed histologically and histomorphometrically at 2 and 4 weeks after surgery. The histological scores and changes in articular cartilage and osteophyte formation were significantly milder and slower in the OAHS group than in the OA group. At 2 and 4 weeks, there were no significant differences in cartilage thickness and matrix staining intensity between both the groups, but chondrocytes density was significantly lower in the OA group. Synovitis was milder in OAHS group than in OA group at 2 weeks. Reducing knee joint loading inhibited histological OA changes in articular cartilage, osteophyte formation, and synovial inflammation. This result supports the latest clinical guidelines for OA treatment. Further studies using biochemical and mechanical analyses are necessary to elucidate the mechanism underlying delayed OA progression caused by joint-load reduction.
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Affiliation(s)
- Ikufumi Takahashi
- Section of Rehabilitation, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keisuke Takeda
- Section of Rehabilitation, Kanazawa University Hospital, Kanazawa, Ishikawa, Japan
| | - Taro Matsuzaki
- Division of Health Sciences, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Hiroshi Kuroki
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masahiro Hoso
- Division of Health Sciences, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
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1012
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Mobasheri A, Trumble TN, Byron CR. Editorial: One Step at a Time: Advances in Osteoarthritis. Front Vet Sci 2021; 8:727477. [PMID: 34336985 PMCID: PMC8322576 DOI: 10.3389/fvets.2021.727477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 06/21/2021] [Indexed: 12/14/2022] Open
Affiliation(s)
- Ali Mobasheri
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
- Departments of Orthopedics, Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- World Health Organization Collaborating Center for Public Health Aspects of Musculoskeletal Health and Aging, Université de Liège, Liège, Belgium
| | - Troy N. Trumble
- Veterinary Population Medicine, University of Minnesota Twin Cities, St. Paul, MN, United States
| | - Christopher R. Byron
- Department of Large Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, United States
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1013
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Kuhi L, Tamm AE, Tamm AO, Kisand K. Risk Assessment of the Progression of Early Knee Osteoarthritis by Collagen Neoepitope C2C: A Longitudinal Study of an Estonian Middle-Aged Cohort. Diagnostics (Basel) 2021; 11:1236. [PMID: 34359319 PMCID: PMC8303529 DOI: 10.3390/diagnostics11071236] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/29/2021] [Accepted: 07/07/2021] [Indexed: 12/26/2022] Open
Abstract
One of the unmet needs to be addressed is prognostic biomarkers for early knee osteoarthritis (kOA). We aimed to study the association of urinary collagen type-II C-terminal cleavage neoepitope (uC2C) with the emergence and progression of kOA. The longitudinal data of 330 subjects (aged 32-60 years) from an Estonian population-based cohort were used. The radiographic progression was evaluated by the grading system of Nagaosa et al. of knee compartments at baseline and three years later. The emerging kOA consisted of subjects with developing osteophytes or joint space narrowing, whereas kOA progressors showed aggravation of radiographic grade. Baseline uC2C levels were measured by the IBEX-uC2C assay. At baseline, the subjects were middle-aged (mean age, 47.6 years) and overweight (mean BMI, 28.0 kg/m2), and the majority of them (51.2%) had a diagnosis of kOA grade 1. Multiple logistic regression models adjusted for sex, age, and BMI were used for risk calculations. We demonstrate that increased uC2C accurately predicted the risk of emerging of kOA (OR = 5.87 (1.71-20.22); AUC = 0.79) compared with controls without radiographic kOA over 12 years. However, the most accurate prediction of progression by the biomarker was found in women (OR = 23.0 (2.2-245), AUC = 0.91). In conclusion, uC2C may be a promising candidate as a prognostic biomarker for kOA progression, particularly of emerging kOA in women.
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Affiliation(s)
- Liisa Kuhi
- Department of Internal Medicine, Institute of Clinical Medicine, University of Tartu, 50090 Tartu, Estonia; (A.O.T.); (K.K.)
- Central Laboratory, Diagnostic Clinic, East-Tallinn Central Hospital, 10138 Tallinn, Estonia
| | - Ann E. Tamm
- Sports Medicine and Rehabilitation Clinic, Institute of Clinical Medicine, University of Tartu, 50090 Tartu, Estonia;
| | - Agu O. Tamm
- Department of Internal Medicine, Institute of Clinical Medicine, University of Tartu, 50090 Tartu, Estonia; (A.O.T.); (K.K.)
| | - Kalle Kisand
- Department of Internal Medicine, Institute of Clinical Medicine, University of Tartu, 50090 Tartu, Estonia; (A.O.T.); (K.K.)
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1014
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McKevitt S, Jinks C, Healey EL, Quicke JG. The attitudes towards, and beliefs about, physical activity in people with osteoarthritis and comorbidity: A qualitative investigation. Musculoskeletal Care 2021; 20:167-179. [PMID: 34245657 DOI: 10.1002/msc.1579] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/29/2021] [Accepted: 07/03/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To investigate the attitudes towards, and beliefs about, physical activity (PA) in older adults with osteoarthritis (OA) and comorbidity to understand experiences and seek ways to improve PA participation. METHODS Semi-structured interviews with adults aged ≥45, with self-reported OA and comorbidity (N = 17). Face-to-face interviews explored participant perspectives regarding; (1) attitudes and beliefs about PA in the context of OA and comorbidity and (2) how people with OA and comorbidity could be encouraged to improve and maintain PA levels. Data were transcribed verbatim and inductive thematic analysis was undertaken using a framework approach. RESULTS Participants did not conceptualise multiple long-term conditions (LTCs) together and instead self-prioritised OA over other LTCs. Barriers to PA included uncertainty about both the general management of individual LTCs and the effectiveness of PA for their LTCs; and, negative perceptions about their health, ageing and PA. Participants experienced dynamic and co-existing barriers to PA, and problematized this as a multi-level process, identifying a barrier, then a solution, followed by a new barrier. Facilitators of PA included social support and support from knowledgeable healthcare professionals (HCPs), together with PA adapted for OA and comorbidity and daily life. PA levels could be increased through targeted interventions to increase self-efficacy for managing OA alongside other LTCs and self-efficacy for PA. CONCLUSION People with OA and comorbidity experience complicated PA barriers. To increase PA levels, tailored PA interventions could include HCP and social support to anticipate and overcome multi-level PA barriers and target increased self-efficacy for LTC management and PA.
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Affiliation(s)
- Sarah McKevitt
- School of Medicine, Primary Care Centre Versus Arthritis, Keele University, Keele, UK
| | - Clare Jinks
- School of Medicine, Primary Care Centre Versus Arthritis, Keele University, Keele, UK
| | - Emma L Healey
- School of Medicine, Primary Care Centre Versus Arthritis, Keele University, Keele, UK
| | - Jonathan G Quicke
- School of Medicine, Primary Care Centre Versus Arthritis, Keele University, Keele, UK.,Haywood Hospital, Midlands Partnership NHS Foundation Trust, Stoke-on-Trent, UK
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1015
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Atakan MM, Li Y, Koşar ŞN, Turnagöl HH, Yan X. Evidence-Based Effects of High-Intensity Interval Training on Exercise Capacity and Health: A Review with Historical Perspective. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:7201. [PMID: 34281138 PMCID: PMC8294064 DOI: 10.3390/ijerph18137201] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/26/2021] [Accepted: 06/28/2021] [Indexed: 12/13/2022]
Abstract
Engaging in regular exercise results in a range of physiological adaptations offering benefits for exercise capacity and health, independent of age, gender or the presence of chronic diseases. Accumulating evidence shows that lack of time is a major impediment to exercise, causing physical inactivity worldwide. This issue has resulted in momentum for interval training models known to elicit higher enjoyment and induce adaptations similar to or greater than moderate-intensity continuous training, despite a lower total exercise volume. Although there is no universal definition, high-intensity interval exercise is characterized by repeated short bursts of intense activity, performed with a "near maximal" or "all-out" effort corresponding to ≥90% of maximal oxygen uptake or >75% of maximal power, with periods of rest or low-intensity exercise. Research has indicated that high-intensity interval training induces numerous physiological adaptations that improve exercise capacity (maximal oxygen uptake, aerobic endurance, anaerobic capacity etc.) and metabolic health in both clinical and healthy (athletes, active and inactive individuals without any apparent disease or disorder) populations. In this paper, a brief history of high-intensity interval training is presented, based on the novel findings of some selected studies on exercise capacity and health, starting from the early 1920s to date. Further, an overview of the mechanisms underlying the physiological adaptations in response to high-intensity interval training is provided.
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Affiliation(s)
- Muhammed Mustafa Atakan
- Division of Exercise Nutrition and Metabolism, Faculty of Sport Sciences, Hacettepe University, 06800 Ankara, Turkey; (M.M.A.); (Ş.N.K.); (H.H.T.)
| | - Yanchun Li
- China Institute of Sport and Health Science, Beijing Sport University, Beijing 100192, China
| | - Şükran Nazan Koşar
- Division of Exercise Nutrition and Metabolism, Faculty of Sport Sciences, Hacettepe University, 06800 Ankara, Turkey; (M.M.A.); (Ş.N.K.); (H.H.T.)
| | - Hüseyin Hüsrev Turnagöl
- Division of Exercise Nutrition and Metabolism, Faculty of Sport Sciences, Hacettepe University, 06800 Ankara, Turkey; (M.M.A.); (Ş.N.K.); (H.H.T.)
| | - Xu Yan
- Institute for Health and Sport (iHeS), Victoria University, Melbourne 8001, Australia;
- Sarcopenia Research Program, Australia Institute for Musculoskeletal Sciences (AIMSS), Melbourne 3021, Australia
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1016
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Antony B, Singh A. Imaging and Biochemical Markers for Osteoarthritis. Diagnostics (Basel) 2021; 11:1205. [PMID: 34359288 PMCID: PMC8305947 DOI: 10.3390/diagnostics11071205] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 07/01/2021] [Indexed: 11/25/2022] Open
Abstract
Osteoarthritis (OA) is the most common form of arthritis in adults that affects more than 500 million people globally [...].
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Affiliation(s)
- Benny Antony
- Menzies Institute for Medical Research, University of Tasmania, Hobart 7000, Australia;
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1017
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Hart DA, Martin CR, Scott M, Shrive NG. The instrumented sheep knee to elucidate insights into osteoarthritis development and progression: A sensitive and reproducible platform for integrated research efforts. Clin Biomech (Bristol, Avon) 2021; 87:105404. [PMID: 34171651 DOI: 10.1016/j.clinbiomech.2021.105404] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 03/12/2021] [Accepted: 06/01/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Osteoarthritis of the knee is a very common condition that has been difficult to treat. The majority of cases are considered idiopathic. Much research effort remains focused on biology rather than the biomechanics of such joints. Some new methods were developed and validated to better appreciate the subtleties of the biomechanical integrity of joints, and how changes in biomechanics can contribute to osteoarthritis. METHODS Over the past 15 years our lab has enhanced the sensitivity of the assessment of knee biomechanics of an instrumented, trained large animal model (sheep) of osteoarthritis and integrated the findings with biological and histological assessments. These new methods include gait analysis before and after injury followed by robotic validation post-sacrifice, and more recently using Fibre Bragg Grating sensors to detect alterations in cartilage stresses. RESULTS A review of the findings obtained with this model are presented. The findings indicate that sheep, like humans, exhibit individual characteristics. They also indicate that joint kinetics, rather than kinematics may better define the alterations induced by injury. With the addition of Fibre Bragg Grating sensors, it has been possible to measure with good accuracy, alterations to cartilage stresses following a controlled knee injury. INTERPRETATION Using this model as Proof of Concept, this sheep system can now be viewed as a sensitive platform to address many questions related to risk for development of idiopathic osteoarthritis of the human knee, the efficacy of potential interventions to correct biomechanical disruptions, and how joint biomechanics and biology are integrated during aging.
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Affiliation(s)
- David A Hart
- McCaig Institute for Bone & Joint Health, University of Calgary, Calgary, AB, Canada; Department of Surgery, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada; Bone & Joint Health Strategic Clinical Network, Alberta Health Services, Edmonton, AB, Canada.
| | - C Ryan Martin
- McCaig Institute for Bone & Joint Health, University of Calgary, Calgary, AB, Canada; Section of Orthopedics, Department of Surgery, University of Calgary, Calgary, AB, Canada
| | - Michael Scott
- Department of Veterinary Clinical & Diagnostic Sciences, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada
| | - Nigel G Shrive
- McCaig Institute for Bone & Joint Health, University of Calgary, Calgary, AB, Canada; Department of Surgery, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada; Department of Civil Engineering, Schulich School of Engineering, University of Calgary, Calgary, AB, Canada
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1018
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Patient education improves pain and function in people with knee osteoarthritis with better effects when combined with exercise therapy: a systematic review. J Physiother 2021; 67:177-189. [PMID: 34158270 DOI: 10.1016/j.jphys.2021.06.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 03/16/2021] [Accepted: 06/07/2021] [Indexed: 12/14/2022] Open
Abstract
QUESTION Is patient education effective as a standalone intervention or combined with other interventions for people with knee osteoarthritis? DESIGN Systematic review of randomised controlled trials. MEDLINE, EMBASE, SPORTDiscus, CINAHL and Web of Science were searched from inception to April 2020. The Cochrane Risk of Bias tool was used for included studies, and Grading of Recommendations, Assessment, Development and Evaluations (GRADE) was used to interpret certainty of results. PARTICIPANTS People with knee osteoarthritis. INTERVENTION Any patient education intervention compared with any non-pharmacological comparator. OUTCOME MEASURES Primary outcomes were self-reported pain and function. RESULTS Twenty-nine trials involving 4,107 participants were included, informing low to very-low certainty evidence. Nineteen of 28 (68%) pooled comparisons were not statistically significant. Patient education was superior to usual care for pain (SMD -0.35, 95% CI -0.56 to -0.14) and function in the short term (-0.31, 95% CI -0.62 to 0.00), but inferior to exercise therapy for pain in the short term (0.77, 95% CI 0.07 to 1.47). Combining patient education with exercise therapy produced superior outcomes compared with patient education alone for pain in the short term (0.44, 95% CI 0.19 to 0.69) and function in the short (0.81, 95% CI 0.54 to 1.08) and medium term (0.39, 95% CI 0.15 to 0.62). When using the Western Ontario and McMaster Universities Osteoarthritis Index for these comparisons, clinically important differences indicated that patient education was inferior to exercise therapy for pain in the short term (MD 1.56, 95% CI 0.14 to 2.98) and the combination of patient education and exercise therapy for function in the short term (8.94, 95% CI 6.05 to 11.82). CONCLUSION Although patient education produced statistically superior short-term pain and function outcomes compared with usual care, differences were small and may not be clinically important. Patient education should not be provided as a standalone treatment and should be combined with exercise therapy to provide statistically superior and clinically important short-term improvements in function compared with education alone. REGISTRATION PROSPERO CRD42019122004.
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1019
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Goddi A, Schroedl L, Brey EM, Cohen RN. Laminins in metabolic tissues. Metabolism 2021; 120:154775. [PMID: 33857525 DOI: 10.1016/j.metabol.2021.154775] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 03/13/2021] [Accepted: 04/08/2021] [Indexed: 12/16/2022]
Abstract
Laminins are extracellular matrix proteins that reside in the basement membrane and provide structural support in addition to promoting cellular adhesion and migration. Through interactions with cell surface receptors, laminins stimulate intracellular signaling cascades which direct specific survival and differentiation outcomes. In metabolic tissues such as the pancreas, adipose, muscle, and liver, laminin isoforms are expressed in discrete temporal and spatial patterns suggesting that certain isoforms may support the development and function of particular metabolic cell types. This review focuses on the research to date detailing the expression of laminin isoforms, their potential function, as well as known pathways involved in laminin signaling in metabolic tissues. We will also discuss the current biomedical therapies involving laminins in these tissues in addition to prospective applications, with the goal being to encourage future investigation of laminins in the context of metabolic disease.
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Affiliation(s)
- Anna Goddi
- Committee on Molecular Metabolism and Nutrition, The University of Chicago, 900 East 57th St, Chicago, IL 60637, USA
| | - Liesl Schroedl
- Pritzker School of Medicine, The University of Chicago, 924 E 57th St, Chicago, IL 60637, USA
| | - Eric M Brey
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Ronald N Cohen
- Committee on Molecular Metabolism and Nutrition, The University of Chicago, 900 East 57th St, Chicago, IL 60637, USA; Section of Endocrinology, Diabetes, and Metabolism, The University of Chicago, 5841 South Maryland Ave, Chicago, IL 60637, USA.
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1020
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Burnham R, Smith A, Hart D. The safety and effectiveness of bone marrow concentrate injection for knee and hip osteoarthritis: a Canadian cohort. Regen Med 2021; 16:619-628. [PMID: 34189950 DOI: 10.2217/rme-2021-0001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Aim: Describe the safety and effectiveness of intra-articular bone marrow concentrate (BMC) injection to treat knee and/or hip osteoarthritis (OA) in a Canadian cohort. Materials & methods: A total of 112 patients with refractory OA received a single intra-articular injection of BMC into their knee(s) and/or hip(s). Pain, disability and quality of life were prospectively assessed prior to and 3, 6 and 12 months post-injection. Results: Outcome scores were significantly improved at all time points post-BMC injection with maximal improvement observed at 3-6 months. Improvements were unrelated to patient age, sex or radiographic OA severity. The complication rate was <2%. Interpretation: In this Canadian cohort, knee/hip OA treated with a single BMC injection resulted in significant improvements in pain, disability and quality of life and a low complication rate.
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Affiliation(s)
- Robert Burnham
- Central Alberta Pain & Rehabilitation Institute, Lacombe, AB, Canada.,Vivo Cura Health, Calgary, AB, Canada.,Division of Physical Medicine & Rehabilitation, University of Alberta, Edmonton, AB, Canada
| | - Ashley Smith
- Vivo Cura Health, Calgary, AB, Canada.,Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, AB, Canada
| | - David Hart
- Department of Surgery & Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada.,Bone and Joint Health Strategic Clinical Network, Alberta Health Services, Edmonton, AB, Canada
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1021
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Han G, Zhang Y, Li H. The Combination Treatment of Curcumin and Probucol Protects Chondrocytes from TNF- α Induced Inflammation by Enhancing Autophagy and Reducing Apoptosis via the PI3K-Akt-mTOR Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5558066. [PMID: 34257809 PMCID: PMC8249126 DOI: 10.1155/2021/5558066] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/31/2021] [Accepted: 05/11/2021] [Indexed: 02/06/2023]
Abstract
Osteoarthritis (OA) is a chronic joint disease characterized by cholesterol accumulation in chondrocytes, cartilage degeneration, as well as extracellular matrix (ECM) destruction, and joint dysfunction. Curcumin, a chemical that can reduce cholesterol levels in OA patients, also can inhibit the progression of OA. However, a high concentration of curcumin may also trigger apoptosis in normal chondrocytes. Besides curcumin, probucol that is found can also effectively decrease the cholesterol level in OA patients. Considering that high cholesterol is a risk factor of OA, it is speculated that the combination treatment of curcumin and probucol may be effective in the prevention of OA. To investigate the possible effects of such two chemicals on OA pathophysiology, chondrocyte apoptosis and autophagy behavior under inflammatory cytokine stress were studied, and specifically, the PI3K-Akt-mTOR signaling pathway was studied. Methods. Cell proliferation, colony formation, and EdU assay were performed to identify the cytotoxicity of curcumin and probucol on chondrocytes. Transwell assay was conducted to evaluate chondrocyte migration under TNF-α inflammation stress. Immunofluorescence, JC-1, flow cytometry, RT-PCR, and western blot were used to investigate the signal variations related to autophagy and apoptosis in chondrocytes and cartilage. A histological study was carried out on OA cartilage. Glycosaminoglycan (GAG) release was determined to evaluate the ECM degradation under stress. Results. Compared with a single intervention with curcumin or probucol, a combined treatment of these two chemicals is more effective in terms of protecting chondrocytes from stress injury induced by inflammatory cytokines. The promoted protection may be attributed to the inhibition of apoptosis and the blockage of the autophagy-related PI3K/Akt/mTOR pathway. Such results were also verified in vitro by immunofluorescence staining of OA chondrocytes and in vivo by immunohistochemistry staining of cartilage. Besides, in vivo studies also showed that when applied in combination, curcumin and probucol could block the PI3K-AKT-mTOR signaling pathway; promote COL-II expression; suppress P62, MMP-3, and MMP-13 expression; and inhibit TNF-α-stimulated cartilage degradation. Moreover, the combined medication could help reduce the release of ECM GAGs in OA cartilage and alleviate the severity of OA. Conclusion. A combined treatment of curcumin and probucol could be used to protect chondrocytes from inflammatory cytokine stress via inhibition of the autophagy-related PI3K/Akt/mTOR pathway both in vitro and in vivo, which might be of potential pharmaceutical value for OA prevention and therapy.
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Affiliation(s)
- Guangtao Han
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Yubiao Zhang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Haohuan Li
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
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1022
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Soendenbroe C, Andersen JL, Mackey AL. Muscle-nerve communication and the molecular assessment of human skeletal muscle denervation with aging. Am J Physiol Cell Physiol 2021; 321:C317-C329. [PMID: 34161153 DOI: 10.1152/ajpcell.00174.2021] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Muscle fiber denervation is a major contributor to the decline in physical function observed with aging. Denervation can occur through breakdown of the neuromuscular junctions (NMJ) itself, affecting only that particular fiber, or through the death of a motor neuron, which can lead to a loss of all the muscle fibers in that motor unit. In this review, we discuss the muscle-nerve relationship, where signaling from both the motor neuron and the muscle fiber is required for maximal preservation of neuromuscular function in old age. Physical activity is likely to be the most important single factor that can contribute to this preservation. Furthermore, we propose that inactivity is not an innocent bystander, but plays an active role in denervation through the production of signals hostile to neuron survival. Investigating denervation in human muscle tissue samples is challenging due to the shared protein profile of regenerating and denervated muscle fibers. In this review, we provide a detailed overview of the key traits observed in immunohistochemical preparations of muscle biopsies from healthy, young, and elderly individuals. Overall, a combination of assessing tissue samples, circulating biomarkers, and electrophysiological assessments in humans will prove fruitful in the quest to gain more understanding of denervation of skeletal muscle. In addition, cell culture models represent a valuable tool in the search for key signaling factors exchanged between muscle and nerve, and which exercise has the capacity to alter.
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Affiliation(s)
- Casper Soendenbroe
- Department of Orthopedic Surgery, Institute of Sports Medicine Copenhagen, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.,Xlab, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Clinical Medicine, Center for Healthy Aging, University of Copenhagen, Copenhagen, Denmark
| | - Jesper L Andersen
- Department of Orthopedic Surgery, Institute of Sports Medicine Copenhagen, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.,Department of Clinical Medicine, Center for Healthy Aging, University of Copenhagen, Copenhagen, Denmark
| | - Abigail L Mackey
- Department of Orthopedic Surgery, Institute of Sports Medicine Copenhagen, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark.,Xlab, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Clinical Medicine, Center for Healthy Aging, University of Copenhagen, Copenhagen, Denmark
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1023
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Haberkamp S, Oláh T, Orth P, Cucchiarini M, Madry H. Analysis of spatial osteochondral heterogeneity in advanced knee osteoarthritis exposes influence of joint alignment. Sci Transl Med 2021; 12:12/562/eaba9481. [PMID: 32967975 DOI: 10.1126/scitranslmed.aba9481] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 08/31/2020] [Indexed: 12/14/2022]
Abstract
Osteoarthritis (OA) is considerably affected by joint alignment. Here, we investigate the patterns of spatial osteochondral heterogeneity in patients with advanced varus knee OA together with clinical data. We report strong correlations of osteochondral parameters within individual topographical patterns, highlighting their fundamental and location-dependent interactions in OA. We further identify site-specific effects of varus malalignment on the lesser loaded compartment and, conversely, an unresponsive overloaded compartment. Last, we trace compensatory mechanisms to the overloaded subarticular spongiosa in patients with additional high body weight. We therefore propose to consider and to determine axial alignment in clinical trials when selecting the location to assess structural changes in OA. Together, these findings broaden the scientific basis of therapeutic load redistribution and weight loss in varus knee OA.
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Affiliation(s)
- Sophie Haberkamp
- Center of Experimental Orthopaedics, Saarland University, 66421 Homburg, Germany
| | - Tamás Oláh
- Center of Experimental Orthopaedics, Saarland University, 66421 Homburg, Germany
| | - Patrick Orth
- Center of Experimental Orthopaedics, Saarland University, 66421 Homburg, Germany
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University, 66421 Homburg, Germany
| | - Henning Madry
- Center of Experimental Orthopaedics, Saarland University, 66421 Homburg, Germany.
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1024
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Bjerre-Bastos JJ, Nielsen HB, Andersen JR, Karsdal M, Boesen M, Mackey AL, Byrjalsen I, Thudium CS, Bihlet AR. A biomarker perspective on the acute effect of exercise with and without impact on joint tissue turnover: an exploratory randomized cross-over study. Eur J Appl Physiol 2021; 121:2799-2809. [PMID: 34156534 DOI: 10.1007/s00421-021-04751-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 06/18/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE To investigate acute changes in biochemical markers of bone and cartilage turnover in response to moderate intensity exercise with and without joint impact in healthy human subjects. METHODS A randomized, cross-over, exploratory, clinical study was conducted. Twenty healthy subjects with no history of joint trauma completed 30 min interventions of standardized moderate intensity cycling and running as well as a resting intervention 1 week apart. Blood samples were taken immediately before, four times after exercise and again the next day. Urine was sampled, before, after and the next day. On the day of rest, samples were taken at timepoints similar to the days of exercise. Markers of type I (CTX-I), II (C2M, CTX-II) and VI (C6M) collagen degradation, cartilage oligomeric matrix protein (COMP) and procollagen C-2 (PRO-C2) was measured. TRIAL REGISTRATION NUMBER NCT04542655, 02 September 2020, retrospectively registered. RESULTS CTX-I was different from cycling (4.2%, 95%CI: 0.4-8.0%, p = 0.03) and resting (6.8%, 95%CI: 2.9-10.7%, p = 0.001) after running and the mean change in COMP was different from cycling (10.3%, 95%CI: 1.1-19.5%, p = 0.03), but not from resting (8.6%, 95%CI: - 0.7-17.8%, p = 0.07) after running. Overall, changes in other biomarkers were not different between interventions. CONCLUSION In this exploratory study, running, but not cycling, at a moderate intensity and duration induced acute changes in biomarkers of bone and cartilage extra-cellular matrix turnover.
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Affiliation(s)
- Jonathan J Bjerre-Bastos
- Xlab, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark.
- Nordic Bioscience Clinical Development, Herlev, Denmark.
| | - Henning Bay Nielsen
- Sanos Clinic, Herlev, Denmark
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | | | | | - Mikael Boesen
- Department of Radiology, Bispebjerg Hospital, Copenhagen, Denmark
| | - Abigail L Mackey
- Xlab, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
- Institute of Sports Medicine, Bispebjerg Hospital, Copenhagen, Denmark
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1025
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Herger S, Vach W, Liphardt AM, Nüesch C, Egloff C, Mündermann A. Experimental-analytical approach to assessing mechanosensitive cartilage blood marker kinetics in healthy adults: dose-response relationship and interrelationship of nine candidate markers. F1000Res 2021; 10:490. [PMID: 35284064 PMCID: PMC8907551 DOI: 10.12688/f1000research.52159.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/06/2022] [Indexed: 11/23/2023] Open
Abstract
Purpose: To determine the suitability of selected blood biomarkers of articular cartilage as mechanosensitive markers and to investigate the dose-response relationship between ambulatory load magnitude and marker kinetics in response to load. Methods: Serum samples were collected from 24 healthy volunteers before and at three time points after a 30-minute walking stress test performed on three test days. In each experimental session, one of three ambulatory loads was applied: 100% body weight (BW); 80%BW; 120%BW. Serum concentrations of COMP, MMP-3, MMP-9, ADAMTS-4, PRG-4, CPII, C2C and IL-6 were assessed using commercial enzyme-linked immunosorbent assays. A two-stage analytical approach was used to determine the suitability of a biomarker by testing the response to the stress test (criterion I) and the dose-response relationship between ambulatory load magnitude and biomarker kinetics (criterion II). Results. COMP, MMP-3 and IL-6 at all three time points after, MMP-9 at 30 and 60 minutes after, and ADAMTS-4 and CPII at immediately after the stress test showed an average response to load or an inter-individual variation in response to load of up to 25% of pre-test levels. The relation to load magnitude on average or an inter-individual variation in this relationship was up to 8% from load level to load level. There was a positive correlation for the slopes of the change-load relationship between COMP and MMP-3, and a negative correlation for the slopes between COMP, MMP-3 and IL-6 with MMP-9, and COMP with IL6. Conclusions: COMP, MMP-3, IL-6, MMP-9, and ADAMTS-4 warrant further investigation in the context of articular cartilage mechanosensitivity and its role in joint degeneration and OA. While COMP seems to be able to reflect a rapid response, MMP-3 seems to reflect a slightly longer lasting, but probably also more distinct response. MMP-3 showed also the strongest association with the magnitude of load.
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Affiliation(s)
- Simon Herger
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Spine Surgery, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Biomedical Engineering, University of Basel, Allschwil, BL, 4123, Switzerland
| | - Werner Vach
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Clinical Research, University of Basel, Basel, BS, 4031, Switzerland
- Basel Academy for Quality and Research in Medicine, Basel, Switzerland
| | - Anna-Maria Liphardt
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany
| | - Corina Nüesch
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Spine Surgery, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Biomedical Engineering, University of Basel, Allschwil, BL, 4123, Switzerland
- Department of Clinical Research, University of Basel, Basel, BS, 4031, Switzerland
| | - Christian Egloff
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
| | - Annegret Mündermann
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Spine Surgery, University Hospital Basel, Basel, BS, 4031, Switzerland
- Department of Biomedical Engineering, University of Basel, Allschwil, BL, 4123, Switzerland
- Department of Clinical Research, University of Basel, Basel, BS, 4031, Switzerland
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1026
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Wang X, Perry TA, Caroupapoullé J, Forrester A, Arden NK, Hunter DJ. Monitoring work-related physical activity and estimating lower-limb loading: a proof-of-concept study. BMC Musculoskelet Disord 2021; 22:552. [PMID: 34144697 PMCID: PMC8212530 DOI: 10.1186/s12891-021-04409-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 05/26/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Physical activity (PA) is important to general health and knee osteoarthritis (OA). Excessive workplace PA is an established risk factor for knee OA however, appropriate methods of measurement are unclear. There is a need to examine and assess the utility of new methods of measuring workplace PA and estimating knee load prior to application to large-scale, knee OA cohorts. Our aims, therefore, were to monitor workplace PA and estimate lower-limb loading across different occupations in health participants. METHODS Twenty-four healthy adults, currently working full-time in a single occupation (≥ 35 h/week) and free of musculoskeletal disease, comorbidity and had no history of lower-limb injury/surgery (past 12-months) were recruited across New South Wales (Australia). A convenience sample was recruited with occupations assigned to levels of workload; sedentary, light manual and heavy manual. Metrics of workplace PA including tasks performed (i.e., sitting), step-count and lower-limb loading were monitored over 10 working days using a daily survey, smartwatch, and a smartphone. RESULTS Participants of light manual occupations had the greatest between-person variations in mean lower-limb load (from 2 to 59 kg*m/s3). Lower-limb load for most participants of the light manual group was similar to a single participant in heavy manual work (30 kg*m/s3) and was at least three times greater than the sedentary group (2 kg*m/s3). The trends of workplace PA over working hours were largely consistent, per individual, but rare events of extreme loads were observed across all participants (up to 760 kg*m/s3). CONCLUSIONS There are large interpersonal variations in metrics of workplace PA, particularly among light and heavy manual occupations. Our estimates of lower-limb loading were largely consistent with pre-conceived levels of physical demand. We present a new approach to monitoring PA and estimating lower-limb loading, which could be applied to future occupational studies of knee OA.
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Affiliation(s)
- Xia Wang
- Department of Rheumatology, Royal North Shore Hospital, Institute of Bone and Joint Research, Kolling Institute, University of Sydney, 2065 St Leonards, Sydney, New South Wales Australia
| | - Thomas A Perry
- Department of Rheumatology, Royal North Shore Hospital, Institute of Bone and Joint Research, Kolling Institute, University of Sydney, 2065 St Leonards, Sydney, New South Wales Australia
- Centre for Sport, Exercise and Osteoarthritis Versus Arthritis, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Old Road, OX3 7LD Oxford, United Kingdom
| | - Jimmy Caroupapoullé
- Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, United Kingdom
| | - Alexander Forrester
- Independent Researcher, Town End Cottage, Grindon, Staffordshire, United Kingdom
| | - Nigel K Arden
- Centre for Sport, Exercise and Osteoarthritis Versus Arthritis, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre, University of Oxford, Old Road, OX3 7LD Oxford, United Kingdom
- MRC Lifecourse Epidemiology Unit, Southampton General Hospital, University of Southampton, Southampton, United Kingdom
| | - David J Hunter
- Department of Rheumatology, Royal North Shore Hospital, Institute of Bone and Joint Research, Kolling Institute, University of Sydney, 2065 St Leonards, Sydney, New South Wales Australia
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1027
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de Sousa Valente J, Alawi KM, Bharde S, Zarban AA, Kodji X, Thapa D, Argunhan F, Barrett B, Nagy I, Brain SD. (-)-Englerin-A Has Analgesic and Anti-Inflammatory Effects Independent of TRPC4 and 5. Int J Mol Sci 2021; 22:6380. [PMID: 34203675 PMCID: PMC8232259 DOI: 10.3390/ijms22126380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 06/10/2021] [Accepted: 06/11/2021] [Indexed: 12/13/2022] Open
Abstract
Recently, we found that the deletion of TRPC5 leads to increased inflammation and pain-related behaviour in two animal models of arthritis. (-)-Englerin A (EA), an extract from the East African plant Phyllanthus engleri has been identified as a TRPC4/5 agonist. Here, we studied whether or not EA has any anti-inflammatory and analgesic properties via TRPC4/5 in the carrageenan model of inflammation. We found that EA treatment in CD1 mice inhibited thermal hyperalgesia and mechanical allodynia in a dose-dependent manner. Furthermore, EA significantly reduced the volume of carrageenan-induced paw oedema and the mass of the treated paws. Additionally, in dorsal root ganglion (DRG) neurons cultured from WT 129S1/SvIm mice, EA induced a dose-dependent cobalt uptake that was surprisingly preserved in cultured DRG neurons from 129S1/SvIm TRPC5 KO mice. Likewise, EA-induced anti-inflammatory and analgesic effects were preserved in the carrageenan model in animals lacking TRPC5 expression or in mice treated with TRPC4/5 antagonist ML204.This study demonstrates that while EA activates a sub-population of DRG neurons, it induces a novel TRPC4/5-independent analgesic and anti-inflammatory effect in vivo. Future studies are needed to elucidate the molecular and cellular mechanisms underlying EA's anti-inflammatory and analgesic effects.
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Affiliation(s)
- João de Sousa Valente
- Section of Vascular Biology and Inflammation, BHF Cardiovascular Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, King’s College London, Franklin-Wilkins Building, London SE1 9NH, UK; (K.M.A.); (S.B.); (A.A.Z.); (X.K.); (D.T.); (F.A.); (B.B.); (S.D.B.)
| | - Khadija M Alawi
- Section of Vascular Biology and Inflammation, BHF Cardiovascular Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, King’s College London, Franklin-Wilkins Building, London SE1 9NH, UK; (K.M.A.); (S.B.); (A.A.Z.); (X.K.); (D.T.); (F.A.); (B.B.); (S.D.B.)
| | - Sabah Bharde
- Section of Vascular Biology and Inflammation, BHF Cardiovascular Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, King’s College London, Franklin-Wilkins Building, London SE1 9NH, UK; (K.M.A.); (S.B.); (A.A.Z.); (X.K.); (D.T.); (F.A.); (B.B.); (S.D.B.)
| | - Ali A. Zarban
- Section of Vascular Biology and Inflammation, BHF Cardiovascular Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, King’s College London, Franklin-Wilkins Building, London SE1 9NH, UK; (K.M.A.); (S.B.); (A.A.Z.); (X.K.); (D.T.); (F.A.); (B.B.); (S.D.B.)
- Department of Pharmacological Sciences, Faculty of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia
| | - Xenia Kodji
- Section of Vascular Biology and Inflammation, BHF Cardiovascular Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, King’s College London, Franklin-Wilkins Building, London SE1 9NH, UK; (K.M.A.); (S.B.); (A.A.Z.); (X.K.); (D.T.); (F.A.); (B.B.); (S.D.B.)
| | - Dibesh Thapa
- Section of Vascular Biology and Inflammation, BHF Cardiovascular Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, King’s College London, Franklin-Wilkins Building, London SE1 9NH, UK; (K.M.A.); (S.B.); (A.A.Z.); (X.K.); (D.T.); (F.A.); (B.B.); (S.D.B.)
| | - Fulye Argunhan
- Section of Vascular Biology and Inflammation, BHF Cardiovascular Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, King’s College London, Franklin-Wilkins Building, London SE1 9NH, UK; (K.M.A.); (S.B.); (A.A.Z.); (X.K.); (D.T.); (F.A.); (B.B.); (S.D.B.)
| | - Brentton Barrett
- Section of Vascular Biology and Inflammation, BHF Cardiovascular Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, King’s College London, Franklin-Wilkins Building, London SE1 9NH, UK; (K.M.A.); (S.B.); (A.A.Z.); (X.K.); (D.T.); (F.A.); (B.B.); (S.D.B.)
| | - Istvan Nagy
- Nociception Group, Section of Anaesthetic, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Imperial College London, London SW7 2AZ, UK;
| | - Susan D. Brain
- Section of Vascular Biology and Inflammation, BHF Cardiovascular Centre of Research Excellence, School of Cardiovascular Medicine and Sciences, King’s College London, Franklin-Wilkins Building, London SE1 9NH, UK; (K.M.A.); (S.B.); (A.A.Z.); (X.K.); (D.T.); (F.A.); (B.B.); (S.D.B.)
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1028
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Madry H, Grässel S, Nöth U, Relja B, Bernstein A, Docheva D, Kauther MD, Katthagen JC, Bader R, van Griensven M, Wirtz DC, Raschke MJ, Huber-Lang M. The future of basic science in orthopaedics and traumatology: Cassandra or Prometheus? Eur J Med Res 2021; 26:56. [PMID: 34127057 PMCID: PMC8200553 DOI: 10.1186/s40001-021-00521-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/20/2021] [Indexed: 12/23/2022] Open
Abstract
Orthopaedic and trauma research is a gateway to better health and mobility, reflecting the ever-increasing and complex burden of musculoskeletal diseases and injuries in Germany, Europe and worldwide. Basic science in orthopaedics and traumatology addresses the complete organism down to the molecule among an entire life of musculoskeletal mobility. Reflecting the complex and intertwined underlying mechanisms, cooperative research in this field has discovered important mechanisms on the molecular, cellular and organ levels, which subsequently led to innovative diagnostic and therapeutic strategies that reduced individual suffering as well as the burden on the society. However, research efforts are considerably threatened by economical pressures on clinicians and scientists, growing obstacles for urgently needed translational animal research, and insufficient funding. Although sophisticated science is feasible and realized in ever more individual research groups, a main goal of the multidisciplinary members of the Basic Science Section of the German Society for Orthopaedics and Trauma Surgery is to generate overarching structures and networks to answer to the growing clinical needs. The future of basic science in orthopaedics and traumatology can only be managed by an even more intensified exchange between basic scientists and clinicians while fuelling enthusiasm of talented junior scientists and clinicians. Prioritized future projects will master a broad range of opportunities from artificial intelligence, gene- and nano-technologies to large-scale, multi-centre clinical studies. Like Prometheus in the ancient Greek myth, transferring the elucidating knowledge from basic science to the real (clinical) world will reduce the individual suffering from orthopaedic diseases and trauma as well as their socio-economic impact.
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Affiliation(s)
- Henning Madry
- Institute of Experimental Orthopaedics and Osteoarthritis Research, Saarland University, Homburg, Germany
| | - Susanne Grässel
- Experimental Orthopedics, Department of Orthopedic Surgery, University of Regensburg, Regensburg, Germany
| | - Ulrich Nöth
- Department of Orthopaedics and Trauma Surgery, Evangelisches Waldkrankenhaus Berlin Spandau, Berlin, Germany
| | - Borna Relja
- Experimental Radiology, University Clinic for Radiology and Nuclear Medicine, Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Anke Bernstein
- G.E.R.N. Research Center for Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Medical Center - Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Breisgau, Germany
| | - Denitsa Docheva
- Experimental Trauma Surgery, Department of Trauma Surgery, University Regensburg Medical Centre, Regensburg, Germany
| | - Max Daniel Kauther
- Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Essen, Essen, Germany
| | - Jan Christoph Katthagen
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Muenster, Muenster, Germany
| | - Rainer Bader
- Department of Orthopaedics, Research Lab for Biomechanics and Implant Technology, Rostock University Medical Center, Rostock, Germany
| | - Martijn van Griensven
- Department of Cell Biology-Inspired Tissue Engineering, MERLN-Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Dieter C Wirtz
- Department of Orthopaedics and Trauma Surgery, University Hopsital Bonn, Bonn, Germany
| | - Michael J Raschke
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Muenster, Muenster, Germany
| | - Markus Huber-Lang
- Institute for Clinical and Experimental Trauma-Immunology (ITI), University Hospital Ulm, Helmholzstr. 8/1, Ulm, Germany.
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1029
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Lemirre T, Santschi EM, Girard CA, Fogarty U, Janes JG, Richard H, Laverty S. Microstructural features of subchondral radiolucent lesions in the medial femoral condyle of juvenile Thoroughbreds: A microcomputed tomography and histological analysis. Equine Vet J 2021; 54:601-613. [PMID: 34117652 DOI: 10.1111/evj.13486] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 05/28/2021] [Accepted: 06/03/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND The aetiology of equine medial femoral condyle (MFC) subchondral bone radiolucencies (SR) is unknown. OBJECTIVES Characterise the microstructural structural features of MFC SR in juvenile Thoroughbreds with microcomputed tomography (μCT) and histology. STUDY DESIGN Cross-sectional post-mortem study. METHODS Distal femurs were collected at post-mortem. Conventional tomodensitometry was employed to scout for MFCs with and without SR lesions (SR+ and SR-, respectively). Group 1 were CT MFC SR+ and Group 2 age-matched SR- controls. Both underwent μCT and histological analysis. Group 3 CT MFC SR- foals, <6 months, were selected to search for chondronecrosis. Histological sections, processed from the lesion (Group 1) and a corresponding site in Groups 2 and 3, were assessed for chondronecrosis, fibrin, fibroplasia and osteochondral separation. Group 3 sections were surveyed for chondronecrosis alone. RESULTS A total of 178 femurs from 89 Thoroughbreds were harvested. Of these horses 19.1% (95% CI: 10.9%-27.3%) were CT MFC SR+ (17/23; 7.46 ± 4.36 months) and met the inclusion criteria for Group 1. Group 2 included 30 CT MFC SR- specimens (5.00 ± 2.73 months) and Group 3 had 44 CT MFC SR- s (2.68 ± 1.74 months). SR were located axially in foals <7 months of age, and centrally thereafter. All SRs had areas of thickened cartilage on histology and separation at the osteochondral junction containing fibrin (acute event) and fibroplasia (chronicity) in 73.9% (17/23; 95% CI: 56%-91.9%). In Group 1 specimens, chondronecrosis was present in 82.6% (19/23; 95% CI: 67.1%-98.1%) but four MFC SR+ had no evidence of chondronecrosis. Chondronecrosis was not detected in the Group 3 foal MFCs. MAIN LIMITATIONS No longitudinal follow-up. CONCLUSIONS The absence of chondronecrosis, pathognomic of osteochondrosis, in four MFC SR+s and in all of the CT MFC SR- foals suggests that osteochondrosis is not the cause, or the only cause, of these lesions and favours trauma as an alternate aetiological hypothesis.
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Affiliation(s)
- Thibeaut Lemirre
- Comparative Orthopaedic Research Laboratory, Département de Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, QC, Canada
| | | | - Christiane A Girard
- Comparative Orthopaedic Research Laboratory, Département de Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, QC, Canada
| | | | - Jennifer G Janes
- Department of Veterinary Science, University of Kentucky, Lexington, KY, USA
| | - Helene Richard
- Comparative Orthopaedic Research Laboratory, Département de Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, QC, Canada
| | - Sheila Laverty
- Comparative Orthopaedic Research Laboratory, Département de Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montréal, St-Hyacinthe, QC, Canada
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1030
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Hasriadi, Wasana PWD, Vajragupta O, Rojsitthisak P, Towiwat P. Automated home-cage for the evaluation of innate non-reflexive pain behaviors in a mouse model of inflammatory pain. Sci Rep 2021; 11:12240. [PMID: 34112846 PMCID: PMC8192791 DOI: 10.1038/s41598-021-91444-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 05/24/2021] [Indexed: 02/05/2023] Open
Abstract
The failure to develop analgesic drugs is attributed not only to the complex and diverse pathophysiology of pain in humans but also to the poor experimental design and poor preclinical assessment of pain. Although considerable efforts have been devoted to overcoming the relevant problems, many features of the behavioral pain assessment remain to be characterized. For example, a decreased locomotor activity as a common presentation of pain-like behavior has yet to be described. Studies on mice experimentally induced with carrageenan have provided opportunities to explore pain-related behaviors in automated home-cage monitoring. Through this approach, the locomotor activities of mice with carrageenan-induced inflammatory pain can be precisely and objectively captured. Here, we found that the mobile behaviors of mice reduced, and their immobility increased, indicating that carrageenan induction in mice caused a significant decrease in locomotor activity. These non-reflexive pain behaviors were strongly correlated with the reflexive pain behaviors measured via von Frey and plantar tests. Furthermore, the pharmacological intervention using indomethacin improved the locomotor activity of mice with carrageenan-induced pain. Thus, the analysis of the locomotor activity in automated home-cage monitoring is useful for studying the behavioral analgesia and the pharmacological screening of analgesic drugs. The combined evaluation of reflexive and non-reflexive pain behaviors enhances the translational utility of preclinical pain research in rodents.
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Affiliation(s)
- Hasriadi
- Pharmaceutical Sciences and Technology Program, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Peththa Wadu Dasuni Wasana
- Pharmaceutical Sciences and Technology Program, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Opa Vajragupta
- Research Affairs, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Pornchai Rojsitthisak
- Department of Food and Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
- Natural Products for Ageing and Chronic Diseases Research Unit, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Pasarapa Towiwat
- Natural Products for Ageing and Chronic Diseases Research Unit, Chulalongkorn University, Bangkok, 10330, Thailand.
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.
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1031
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Osteoarthritis Research Society International (OARSI): Past, present and future. OSTEOARTHRITIS AND CARTILAGE OPEN 2021; 3:100146. [DOI: 10.1016/j.ocarto.2021.100146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 02/15/2021] [Accepted: 02/18/2021] [Indexed: 11/23/2022] Open
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1032
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Pellegrini CA, Lee J, DeVivo KE, Harpine CE, Del Gaizo DJ, Wilcox S. Reducing sedentary time using an innovative mHealth intervention among patients with total knee replacement: Rationale and study protocol. Contemp Clin Trials Commun 2021; 22:100810. [PMID: 34195473 PMCID: PMC8239442 DOI: 10.1016/j.conctc.2021.100810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 04/27/2021] [Accepted: 06/15/2021] [Indexed: 01/12/2023] Open
Abstract
INTRODUCTION Although knee replacement is effective for improving pain and physical function, subsequent improvements in physical activity typically do not follow. As a result, many patients spend most of their day engaged in sedentary behavior, which may put them at higher risk of experiencing poor function and disability. Intervening on sedentary time, rather than physical activity, may be a more feasible first-step approach for modifying activity-related behaviors in adults who received knee replacement. OBJECTIVE The purpose of this study is to examine the use of a mobile health (mHealth) intervention to reduce sedentary time among adults who received a knee replacement at 3 and 6 months after surgery. METHODS Patients (n = 92) scheduled for knee replacement will be recruited and at 4 weeks after surgery, they will be randomized to either NEAT!2 or Control. NEAT!2 participants will use the NEAT!2 smartphone app, which provides a vibration and/or audible tone to interrupt prolonged bouts of sitting detected from the smartphone's internal accelerometer, until 3 months after surgery. NEAT!2 participants will receive biweekly coaching calls between 4 and 12 weeks after surgery. Control participants will receive an education control app and receive non-intervention calls to assess general surgery recovery. Both groups will receive 3 retention calls between 3 and 6 months. Data collection will occur pre-operatively and at 3 and 6 months after surgery. DISCUSSION The results of this study will help to determine whether an innovative remotely-delivered, mHealth sedentary reduction intervention can decrease sedentary time in adults after knee replacement.
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Affiliation(s)
- Christine A. Pellegrini
- Technology Center to Promote Healthy Lifestyles, Department of Exercise Science, Arnold School of Public Health, University of South Carolina, 915 Greene Street, Suite 403, Columbia, SC, 29208, USA
| | - Jungwha Lee
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, 680 N. Lake Shore Drive, Suite 1400, Chicago, IL, 60611, USA
| | - Katherine E. DeVivo
- Technology Center to Promote Healthy Lifestyles, Department of Exercise Science, Arnold School of Public Health, University of South Carolina, 915 Greene Street, Suite 403, Columbia, SC, 29208, USA
| | - Courtnee E. Harpine
- Technology Center to Promote Healthy Lifestyles, Department of Exercise Science, Arnold School of Public Health, University of South Carolina, 915 Greene Street, Suite 403, Columbia, SC, 29208, USA
| | | | - Sara Wilcox
- Department of Exercise Science and Prevention Research Center, Arnold School of Public Health, University of South Carolina, 921 Assembly St, Columbia, SC, 29208, USA
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1033
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Ohrndorf S, Glimm AM, Ammitzbøll-Danielsen M, Ostergaard M, Burmester GR. Fluorescence optical imaging: ready for prime time? RMD Open 2021; 7:e001497. [PMID: 34088778 PMCID: PMC8183208 DOI: 10.1136/rmdopen-2020-001497] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 05/22/2021] [Indexed: 11/04/2022] Open
Abstract
The novel technique of fluorescence optical imaging (FOI, Xiralite), which is approved in the European Union and the USA for clinical use, has been the object of studies since 2009. Indocyanine green-based FOI can demonstrate an impaired microcirculation caused by inflammation in both hands in one examination. Several studies have investigated FOI for detection of joint inflammation by comparing FOI to magnetic resonance imaging (MRI) and/or musculoskeletal ultrasound (MSUS). The results have shown a generally good agreement (>80%) between FOI and clinical examination, MRI and MSUS by power Doppler in inflammatory joint diseases. Moreover, characteristic enhancements in skin and nails are seen in PsA, which potentially can be useful in the diagnostic process of early undifferentiated arthritis. Furthermore, FOI has been investigated for the visualisation of a disturbed microcirculation in the hands and fingers of patients with systemic sclerosis (SSc), highlighting the potential of monitoring vascular changes in SSc and other vasculopathies. The available data indicate that it is time to consider FOI as a useful part of the imaging repertoire in rheumatology clinical practice, particularly where MSUS and MRI are not easily available.
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Affiliation(s)
- Sarah Ohrndorf
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Campus Mitte, Humboldt - Universität zu Berlin, Freie Universität Berlin, Berlin, Germany
| | - Anne-Marie Glimm
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Campus Mitte, Humboldt - Universität zu Berlin, Freie Universität Berlin, Berlin, Germany
| | - Mads Ammitzbøll-Danielsen
- Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mikkel Ostergaard
- Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Gerd R Burmester
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Campus Mitte, Humboldt - Universität zu Berlin, Freie Universität Berlin, Berlin, Germany
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1034
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Benos L, Tagarakis AC, Dolias G, Berruto R, Kateris D, Bochtis D. Machine Learning in Agriculture: A Comprehensive Updated Review. SENSORS (BASEL, SWITZERLAND) 2021; 21:3758. [PMID: 34071553 PMCID: PMC8198852 DOI: 10.3390/s21113758] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 01/05/2023]
Abstract
The digital transformation of agriculture has evolved various aspects of management into artificial intelligent systems for the sake of making value from the ever-increasing data originated from numerous sources. A subset of artificial intelligence, namely machine learning, has a considerable potential to handle numerous challenges in the establishment of knowledge-based farming systems. The present study aims at shedding light on machine learning in agriculture by thoroughly reviewing the recent scholarly literature based on keywords' combinations of "machine learning" along with "crop management", "water management", "soil management", and "livestock management", and in accordance with PRISMA guidelines. Only journal papers were considered eligible that were published within 2018-2020. The results indicated that this topic pertains to different disciplines that favour convergence research at the international level. Furthermore, crop management was observed to be at the centre of attention. A plethora of machine learning algorithms were used, with those belonging to Artificial Neural Networks being more efficient. In addition, maize and wheat as well as cattle and sheep were the most investigated crops and animals, respectively. Finally, a variety of sensors, attached on satellites and unmanned ground and aerial vehicles, have been utilized as a means of getting reliable input data for the data analyses. It is anticipated that this study will constitute a beneficial guide to all stakeholders towards enhancing awareness of the potential advantages of using machine learning in agriculture and contributing to a more systematic research on this topic.
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Affiliation(s)
- Lefteris Benos
- Centre of Research and Technology-Hellas (CERTH), Institute for Bio-Economy and Agri-Technology (IBO), 6th km Charilaou-Thermi Rd, GR 57001 Thessaloniki, Greece; (L.B.); (A.C.T.); (G.D.); (D.K.)
| | - Aristotelis C. Tagarakis
- Centre of Research and Technology-Hellas (CERTH), Institute for Bio-Economy and Agri-Technology (IBO), 6th km Charilaou-Thermi Rd, GR 57001 Thessaloniki, Greece; (L.B.); (A.C.T.); (G.D.); (D.K.)
| | - Georgios Dolias
- Centre of Research and Technology-Hellas (CERTH), Institute for Bio-Economy and Agri-Technology (IBO), 6th km Charilaou-Thermi Rd, GR 57001 Thessaloniki, Greece; (L.B.); (A.C.T.); (G.D.); (D.K.)
| | - Remigio Berruto
- Department of Agriculture, Forestry and Food Science (DISAFA), University of Turin, Largo Braccini 2, 10095 Grugliasco, Italy;
| | - Dimitrios Kateris
- Centre of Research and Technology-Hellas (CERTH), Institute for Bio-Economy and Agri-Technology (IBO), 6th km Charilaou-Thermi Rd, GR 57001 Thessaloniki, Greece; (L.B.); (A.C.T.); (G.D.); (D.K.)
| | - Dionysis Bochtis
- Centre of Research and Technology-Hellas (CERTH), Institute for Bio-Economy and Agri-Technology (IBO), 6th km Charilaou-Thermi Rd, GR 57001 Thessaloniki, Greece; (L.B.); (A.C.T.); (G.D.); (D.K.)
- FarmB Digital Agriculture P.C., Doiranis 17, GR 54639 Thessaloniki, Greece
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1035
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Seitz AM, Osthaus F, Schwer J, Warnecke D, Faschingbauer M, Sgroi M, Ignatius A, Dürselen L. Osteoarthritis-Related Degeneration Alters the Biomechanical Properties of Human Menisci Before the Articular Cartilage. Front Bioeng Biotechnol 2021; 9:659989. [PMID: 34026741 PMCID: PMC8134692 DOI: 10.3389/fbioe.2021.659989] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 03/24/2021] [Indexed: 12/15/2022] Open
Abstract
An exact understanding of the interplay between the articulating tissues of the knee joint in relation to the osteoarthritis (OA)-related degeneration process is of considerable interest. Therefore, the aim of the present study was to characterize the biomechanical properties of mildly and severely degenerated human knee joints, including their menisci and tibial and femoral articular cartilage (AC) surfaces. A spatial biomechanical mapping of the articulating knee joint surfaces of 12 mildly and 12 severely degenerated human cadaveric knee joints was assessed using a multiaxial mechanical testing machine. To do so, indentation stress relaxation tests were combined with thickness and water content measurements at the lateral and medial menisci and the AC of the tibial plateau and femoral condyles to calculate the instantaneous modulus (IM), relaxation modulus, relaxation percentage, maximum applied force during the indentation, and the water content. With progressing joint degeneration, we found an increase in the lateral and the medial meniscal instantaneous moduli (p < 0.02), relaxation moduli (p < 0.01), and maximum applied forces (p < 0.01), while for the underlying tibial AC, the IM (p = 0.01) and maximum applied force (p < 0.01) decreased only at the medial compartment. Degeneration had no influence on the relaxation percentage of the soft tissues. While the water content of the menisci did not change with progressing degeneration, the severely degenerated tibial AC contained more water (p < 0.04) compared to the mildly degenerated tibial cartilage. The results of this study indicate that degeneration-related (bio-)mechanical changes seem likely to be first detectable in the menisci before the articular knee joint cartilage is affected. Should these findings be further reinforced by structural and imaging analyses, the treatment and diagnostic paradigms of OA might be modified, focusing on the early detection of meniscal degeneration and its respective treatment, with the final aim to delay osteoarthritis onset.
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Affiliation(s)
- Andreas M Seitz
- Institute of Orthopedic Research and Biomechanics, Center of Trauma Research Ulm, Ulm University Medical Center, Ulm, Germany
| | - Felix Osthaus
- Institute of Orthopedic Research and Biomechanics, Center of Trauma Research Ulm, Ulm University Medical Center, Ulm, Germany
| | - Jonas Schwer
- Institute of Orthopedic Research and Biomechanics, Center of Trauma Research Ulm, Ulm University Medical Center, Ulm, Germany
| | - Daniela Warnecke
- Institute of Orthopedic Research and Biomechanics, Center of Trauma Research Ulm, Ulm University Medical Center, Ulm, Germany
| | - Martin Faschingbauer
- Department of Orthopedic Surgery, Universitäts- und Rehabilitationskliniken Ulm (RKU), Ulm University Medical Center, Ulm, Germany
| | - Mirco Sgroi
- Department of Orthopedic Surgery, Universitäts- und Rehabilitationskliniken Ulm (RKU), Ulm University Medical Center, Ulm, Germany
| | - Anita Ignatius
- Institute of Orthopedic Research and Biomechanics, Center of Trauma Research Ulm, Ulm University Medical Center, Ulm, Germany
| | - Lutz Dürselen
- Institute of Orthopedic Research and Biomechanics, Center of Trauma Research Ulm, Ulm University Medical Center, Ulm, Germany
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1036
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Brose TZ, Kubosch EJ, Schmal H, Stoddart MJ, Armiento AR. Crosstalk Between Mesenchymal Stromal Cells and Chondrocytes: The Hidden Therapeutic Potential for Cartilage Regeneration. Stem Cell Rev Rep 2021; 17:1647-1665. [PMID: 33954877 DOI: 10.1007/s12015-021-10170-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2021] [Indexed: 12/14/2022]
Abstract
Cartilage injuries following trauma create a puzzling clinical scenario. The finite reparative potential of articular cartilage is well known, and injuries are associated with an increased risk of osteoarthritis. Cell-based therapies have spotlighted chondrocytes and mesenchymal stromal cells (MSCs) as the functional unit of articular cartilage and the progenitor cells, respectively. The available clinical treatments cannot reproduce the biomechanical properties of articular cartilage and call for continuous investigations into alternative approaches. Co-cultures of chondrocytes and MSCs are an attractive in vitro system to step closer to the in vivo multicellular environment's complexity. Research on the mechanisms of interaction between both cell types will reveal essential cues to understand cartilage regeneration. This review describes the latest discoveries on these interactions, along with advantages and main challenges in vitro and in vivo. The successful clinical translation of in vitro studies requires establishing rigorous standards and clinically relevant research models and an organ-targeting therapeutic strategy.
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Affiliation(s)
- Teresa Z Brose
- AO Research Institute Davos, Clavadelerstrasse 8, 7270, Davos Platz, Switzerland.,Department of Orthopaedics and Trauma Surgery, Medical Centre, Faculty of Medicine, Albert Ludwigs University of Freiburg, Hugstetterstrasse 55, 79106, Freiburg, Germany
| | - Eva J Kubosch
- Department of Orthopaedics and Trauma Surgery, Medical Centre, Faculty of Medicine, Albert Ludwigs University of Freiburg, Hugstetterstrasse 55, 79106, Freiburg, Germany
| | - Hagen Schmal
- Department of Orthopaedics and Trauma Surgery, Medical Centre, Faculty of Medicine, Albert Ludwigs University of Freiburg, Hugstetterstrasse 55, 79106, Freiburg, Germany
| | - Martin J Stoddart
- AO Research Institute Davos, Clavadelerstrasse 8, 7270, Davos Platz, Switzerland.,Department of Orthopaedics and Trauma Surgery, Medical Centre, Faculty of Medicine, Albert Ludwigs University of Freiburg, Hugstetterstrasse 55, 79106, Freiburg, Germany
| | - Angela R Armiento
- AO Research Institute Davos, Clavadelerstrasse 8, 7270, Davos Platz, Switzerland.
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1037
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Longitudinal changes in tibial and femoral cartilage thickness are associated with baseline ambulatory kinetics and cartilage oligomeric matrix protein (COMP) measures in an asymptomatic aging population. Osteoarthritis Cartilage 2021; 29:687-696. [PMID: 33610822 DOI: 10.1016/j.joca.2021.02.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 01/07/2021] [Accepted: 02/02/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To address the need for early knee osteoarthritis (OA) markers by testing if longitudinal cartilage thickness changes are associated with specific biomechanical and biological measures acquired at a baseline test in asymptomatic aging subjects. DESIGN Thirty-eight asymptomatic subjects over age 45 years were studied at baseline and at an average of 7-9 year follow-up. Gait mechanics and knee MRI were measured at baseline and MRI was obtained at follow-up to assess cartilage thickness changes. A subset of the subjects (n = 12) also had serum cartilage oligomeric matrix protein measured at baseline in response to a mechanical stimulus (30-min walk) (mCOMP). Baseline measures, including the knee extension (KEM), flexion (KFM), adduction (KAM) moments and mCOMP, were tested for associations with cartilage thickness changes in specific regions of the knee. RESULTS Cartilage change in the full medial femoral condyle (p = 0.005) and external medial femoral region (p = 0.041) was negatively associated with larger early stance peak KEM. Similarly, cartilage change in the full medial femoral region (p = 0.009) and medial femoral external region (p = 0.043) was negatively associated with larger first peak KAM, while cartilage change in the anterior medial tibia was positively associated with larger first peak KAM (p = 0.003). Cartilage change in the anterior medial tibia was also significantly associated (p = 0.011) with mCOMP levels 5.5-h post-activity (percentage of pre-activity levels). CONCLUSIONS Interactions found between gait, mechanically-stimulated serum biomarkers, and cartilage thickness in an at-risk aging asymptomatic population suggest the opportunity for early detection of OA with new approaches that bridge across disciplines and scales.
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1038
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Danielsen MA, Glinatsi D, Terslev L, Østergaard M. A Novel Fluorescence Optical Imaging Scoring System for Hand Synovitis in Rheumatoid Arthritis - validity and agreement with ultrasound. Rheumatology (Oxford) 2021; 61:636-647. [PMID: 33890623 DOI: 10.1093/rheumatology/keab377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/15/2021] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES To develop and validate a new semiquantitative Fluorescence Optical Imaging (FOI) scoring system - the FOI Enhancement-Generated rheumatoid arthritis (RA) Score (FOIE-GRAS) for synovitis assessment in the hand. METHODS The development of FOIE-GRAS was based on consensus of 4 experts in musculoskeletal imaging. Forty-six RA patients, eligible for treatment intensification and with ≥1 clinically swollen joint in the hands and 11 healthy controls were included. FOI, ultrasound and clinical assessment of both hands were obtained at baseline and for RA patients after 3- and 6-months' follow-up. Twenty RA patients had an FOI rescan after 4 hours. Synovitis was scored using FOIE-GRAS and the OMERACT ultrasound synovitis scoring system. All FOI images were scored by 2 readers. Inter-scan, inter-and intra-reader reliability were determined. Furthermore, FOIE-GRAS agreement with ultrasound and responsiveness was assessed. RESULTS FOIE-GRAS synovitis was defined as early enhancement and scores based on the degree of coverage of the specific joint region after 3 seconds (0-3). Inter-scan, intra- and inter-reader intraclass correlations coefficients (ICC) were good-excellent for all baseline scores (0.76-0.98) and moderate-to-good for change (0.65-76).The FOIE-GRAS had moderate agreement with ultrasound (ICC 0.30-0.54) for total score, a good standardized response mean (>0.80), and moderate correlation with clinical joint assessment and DAS28-CRP. The median (IQR) reading time per FOI examination was 133 (109;161) seconds. Scores were significantly lower in controls 1(0;4) than RA patients 11(6;19). CONCLUSION The FOIE-GRAS offers a feasible and reliable assessment of synovitis in RA, with a moderate correlation with ultrasound and DAS28CRP, and good responsiveness.
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Affiliation(s)
- Mads Ammitzbøll Danielsen
- Center for Rheumatology and Spine Diseases, Rigshospitalet, Denmark.,Copenhagen Center for Arthritis Research, Rigshospitalet, Denmark
| | - Daniel Glinatsi
- Center for Rheumatology and Spine Diseases, Rigshospitalet, Denmark.,Department of Rheumatology, Skaraborg Hospital, Skövde, Sweden
| | - Lene Terslev
- Center for Rheumatology and Spine Diseases, Rigshospitalet, Denmark.,Copenhagen Center for Arthritis Research, Rigshospitalet, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mikkel Østergaard
- Center for Rheumatology and Spine Diseases, Rigshospitalet, Denmark.,Copenhagen Center for Arthritis Research, Rigshospitalet, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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1039
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Gigout A, Harazin D, Topping LM, Merciris D, Lindemann S, Brenneis C, Nissim A. Early detection of osteoarthritis in the rat with an antibody specific to type II collagen modified by reactive oxygen species. Arthritis Res Ther 2021; 23:113. [PMID: 33853645 PMCID: PMC8045329 DOI: 10.1186/s13075-021-02502-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 04/03/2021] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a disease of the whole joint, with articular cartilage breakdown as a major characteristic. Inflammatory mediators, proteases, and oxidants produced by chondrocytes are known to be responsible for driving cartilage degradation. Nevertheless, the early pathogenic events are still unclear. To investigate this, we employed an antibody that is specific to oxidative post-translationally modified collagen type II (anti-oxPTM-CII) to detect early cartilage pathogenic changes in two rat models of OA. METHODS The animals underwent surgery for destabilization of the medial meniscus (DMM) and were sacrificed after 3, 5, 7, 14, and 28 days. Alternatively, anterior cruciate ligament transection with partial meniscectomy (ACLT+pMx) was performed and animals were sacrificed after 1, 3, 5, 7, and 14 days. Joints were stained with toluidine blue and saffron du Gatinais for histological scoring, anti-oxPTM-CII, and anti-collagen type X antibodies (anti-CX). RESULTS We observed positive oxPTM-CII staining as early as 1 or 3 days after ACLT+pMx or DMM surgeries, respectively, before overt cartilage lesions were visible. oxPTM-CII was located mostly in the deep zone of the medial tibial cartilage, in the pericellular and territorial matrix of hypertrophic chondrocytes, and co-localized with CX staining. Staining was weak or absent for the lateral compartment or the contralateral knees except at later time points. CONCLUSION The results demonstrate that oxidant production and chondrocyte hypertrophy occur very early in the onset of OA, possibly initiating the pathogenic events of OA. We propose to use anti-oxPTM-CII as an early biomarker for OA ahead of radiographic changes.
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Affiliation(s)
- Anne Gigout
- Osteoarthritis Research, Merck KGaA, Darmstadt, Germany
| | | | - Louise M Topping
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Chaterhouse Square, London, EC1M 6BQ, UK
| | | | | | | | - Ahuva Nissim
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Chaterhouse Square, London, EC1M 6BQ, UK.
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1040
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Loeser RF, Berenbaum F, Kloppenburg M. Vitamin K and osteoarthritis: is there a link? Ann Rheum Dis 2021; 80:547-549. [DOI: 10.1136/annrheumdis-2020-219765] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 12/12/2022]
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1041
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Mazzei DR, Ademola A, Abbott JH, Sajobi T, Hildebrand K, Marshall DA. Are education, exercise and diet interventions a cost-effective treatment to manage hip and knee osteoarthritis? A systematic review. Osteoarthritis Cartilage 2021; 29:456-470. [PMID: 33197558 DOI: 10.1016/j.joca.2020.10.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/08/2020] [Accepted: 10/10/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To identify research gaps and inform implementation we systematically reviewed the literature evaluating cost-effectiveness of recommended treatments (education, exercise and diet) for the management of hip and/or knee OA. METHODS We searched Medline, Embase, Cochrane Central Register of Controlled Trials, National Health Services Economic Evaluation Database, and EconLit from inception to November 2019 for trial-based economic evaluations investigating hip and/or knee OA core treatments. Two investigators screened relevant publications, extracted data and synthesized results. Risk of bias was assessed using the Consensus on Health Economic Criteria list. RESULTS Two cost-minimization, five cost-effectiveness and 16 cost-utility analyses evaluated core treatments in six health systems. Exercise therapy with and without education or diet was cost-effective or cost-saving compared to education or physician-delivered usual care at conventional willingness to pay (WTP) thresholds in 15 out of 16 publications. Exercise interventions were cost-effective compared to physiotherapist-delivered usual care in three studies at conventional WTP thresholds. Education interventions were not cost-effective compared to usual care or placebo at conventional WTP thresholds in three out of four publications. CONCLUSIONS Structured core treatment programs were clinically effective and cost-effective, compared to physician-delivered usual care, in five health care systems. Providing education about core treatments was not consistently cost-effective. Implementing structured core treatment programs into funded clinical pathways would likely be an efficient use of health system resources and enhance physician-delivered usual primary care.
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Affiliation(s)
- D R Mazzei
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute of Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
| | - A Ademola
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute of Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
| | - J H Abbott
- Centre for Musculoskeletal Outcomes Research, Department of Surgical Sciences, Otago Medical School, University of Otago, Dunedin, New Zealand.
| | - T Sajobi
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute of Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
| | - K Hildebrand
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Surgery, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
| | - D A Marshall
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; O'Brien Institute of Public Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
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1042
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SILIŞTEANU SC, SILIŞTEANU AE, SZAKÁCS J. Influence of the physical activity in the elderly people diagnosed with knee osteoarthritis during the pandemic period caused by COVID-19. BALNEO AND PRM RESEARCH JOURNAL 2021. [DOI: 10.12680/balneo.2021.425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Introduction. Knee osteoarthritis is considered to be a chronic disease that affects the joints by causing pain, joint stiffness and decreased functional capacity. Regular physical activity can keep and increase functional capacity, it can reduce pain by improving movement behavior. The disruption of the sedentary behavior of the elderly patients with knee osteoarthritis can lead to improved physical function and general health. The purpose of this paper is to point out the role of physical activity in the elderly people diagnosed with knee osteoarthritis during the COVID-19 pandemic. Material and method. A total of 155 patients diagnosed (clinical and imaging) with knee ostoarthritis, who were treated on an outpatient basis, from May to September 2020, were studied. The parameters assessed in the study were pain, joint stiffness, the ability to carry out daily activities, anxiety and quality of life. Results and discussion.The studied group of patients was homogeneous in terms of the weight by age group and gender. Higher values were recorded in the study group in the evaluation of patients based on scales, the results being statistically significant, with value for p<0.05, which means that the hypothesis was validated. Conclusions. Patients of the study group recorded improvementin of functional capacity, joint stability and static and dynamic balance, which allowed a faster reintegration into the family and society.
Keywords: physical activity, pain, elderly people, knee osteoarthritis,
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Affiliation(s)
- Sînziana Călina SILIŞTEANU
- Railway Hospital Iasi - Specialty Ambulatory of Suceava 2 "Stefan cel Mare" University of Suceava FEFS-DSDU
| | | | - Juliánna SZAKÁCS
- George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, Faculty of Medicine, Department of Biophysics
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1043
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Chan C, Qi HH, Baldwin JN, McKay MJ, Burns J, Nicholson LL. Joint hypermobility and its association with self-reported knee health: A cross-sectional study of healthy Australian adults. Int J Rheum Dis 2021; 24:687-693. [PMID: 33729675 DOI: 10.1111/1756-185x.14096] [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: 12/15/2020] [Revised: 02/22/2021] [Accepted: 02/26/2021] [Indexed: 11/30/2022]
Abstract
AIM The primary aim of this study was to determine the association between generalized joint hypermobility (GJH), knee-specific hypermobility (KSH) and self-reported knee health in an Australian population. Secondary aims included elucidating ethnic/gender differences in GJH/KSH prevalence and knee health, and identifying KSH using a novel knee extension range of motion cut-off method. METHOD Knee extension range, Beighton score, and 5 domains of the Knee Injury and Osteoarthritis Outcome Score (KOOS) were collected from adults aged 18-101 years self-identifying as healthy, and were grouped by ethnicity and gender. Two established Beighton score criteria and 1 novel knee extension range cut-off method were used to determine GJH and KSH respectively. Point-biserial correlation tested the associations between GJH/KSH and KOOS. Differences in GJH/KSH prevalence and knee health between ethnic/gender groups were determined with the Chi-squared test. RESULTS Of 732 participants (50% male), 80.3% were Caucasian. No correlations were found between GJH and KOOS while a very weak correlation was found between KSH and 1 KOOS domain (r > -.30; P = .04). Prevalence of GJH was higher in non-Caucasians (17.4% vs 5.6%, P < .001) and females (4.4% vs 1.1%, P = .007). Prevalence of KSH between ethnic and gender groups was not significantly different (P = .50 and P = .69 respectively). Non-Caucasians scored higher (better) in all KOOS domains than Caucasians (all P < .05). CONCLUSION Those who met the age- and gender-specific criteria for GJH/KSH did not report worse knee health than their non-hypermobile counterparts. Clinicians can assure individuals who exhibit GJH/KSH that these are not associated with lower knee health and function.
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Affiliation(s)
- Cliffton Chan
- Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Haiwei H Qi
- Faculty of Medicine and Health, Sydney School of Health Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Jennifer N Baldwin
- Faculty of Medicine and Health, Sydney School of Health Sciences, The University of Sydney, Sydney, NSW, Australia.,Faculty of Health and Medicine, Priority Research Centre in Physical Activity & Nutrition, The University of Newcastle, Sydney, NSW, Australia
| | - Marnee J McKay
- Faculty of Medicine and Health, Sydney School of Health Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Joshua Burns
- Faculty of Medicine and Health, Sydney School of Health Sciences, The University of Sydney, Sydney, NSW, Australia.,Paediatric Gait Analysis Service of New South Wales, Sydney Children's Hospital Network (Randwick and Westmead), Sydney, NSW, Australia
| | - Leslie L Nicholson
- Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Sydney, NSW, Australia
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1044
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Wallis JA, Barton CJ, Brusco NK, Kemp JL, Sherwood J, Young K, Jennings S, Trivett A, Ackerman IN. Exploring views of orthopaedic surgeons, rheumatologists and general practitioners about osteoarthritis management. Musculoskeletal Care 2021; 19:524-532. [PMID: 33710743 PMCID: PMC9292668 DOI: 10.1002/msc.1549] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 02/16/2021] [Accepted: 02/18/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND Delivery of recommended treatments for hip and knee osteoarthritis (OA) is known to be discordant with guideline recommendations. However, professional views related to OA management across medical and surgical disciplines are not well understood. The aim of this study was to explore the views of medical professionals about management of hip and knee OA. METHODS Qualitative study. Semistructured individual interviews were conducted with orthopaedic surgeons, rheumatologists and general practitioners routinely involved in the management of OA. Interviews were audiotaped, transcribed, member-checked, coded and thematically analysed. RESULTS Fifteen medical professionals were interviewed. Three main themes were: (i) recognition of the importance of nonsurgical management of hip and knee OA, focussed on self-management, exercise-therapy, weight management and analgesia; (ii) joint replacement being considered the 'last resort' for end stage disease not responding to nonsurgical management; and (iii) determination of management 'success' through patient perceptions was more common than the use of validated instruments. Views on management broadly converged across disciplines, except for the role of joint replacement, considered an adjunct in the overall management of OA by rheumatologists and as a definitive cure by orthopaedic surgeons. CONCLUSIONS Aligning with current guidelines, medical professionals recognised the importance of nonsurgical management focussed on exercise-therapy for hip and knee OA, and concurred that joint replacement surgery should be a last resort. A focus on patient education was less prominent, which along with implementation of validated outcome measures in routine medical practice, may require greater health system support.
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Affiliation(s)
- Jason A Wallis
- Centre for Allied Health Research and Education, Cabrini Health, Malvern, Victoria, Australia.,Monash Department of Clinical Epidemiology, Cabrini Institute, Malvern, Victoria, Australia.,Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Christian J Barton
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia.,Department of Surgery, St Vincent's Hospital, The University of Melbourne, Fitzroy, Victoria, Australia
| | - Natasha K Brusco
- Centre for Allied Health Research and Education, Cabrini Health, Malvern, Victoria, Australia.,Rehabilitation, Ageing and Independent Living (RAIL) Research Centre, School of Primary and Allied Health Care, Monash University, Frankston, Victoria, Australia
| | - Joanne L Kemp
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Victoria, Australia
| | - James Sherwood
- Centre for Allied Health Research and Education, Cabrini Health, Malvern, Victoria, Australia
| | - Kirby Young
- Centre for Allied Health Research and Education, Cabrini Health, Malvern, Victoria, Australia
| | - Sophie Jennings
- Centre for Allied Health Research and Education, Cabrini Health, Malvern, Victoria, Australia
| | - Adrian Trivett
- Department of Orthopaedic Surgery, Cabrini Health, Malvern, Victoria, Australia
| | - Ilana N Ackerman
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
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1045
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Guehring H, Moreau F, Daelken B, Ladel C, Guenther O, Bihlet AR, Wirth W, Eckstein F, Hochberg M, Conaghan PG. The effects of sprifermin on symptoms and structure in a subgroup at risk of progression in the FORWARD knee osteoarthritis trial. Semin Arthritis Rheum 2021; 51:450-456. [PMID: 33752164 DOI: 10.1016/j.semarthrit.2021.03.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/25/2021] [Accepted: 03/08/2021] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To assess pain outcomes and cartilage thickness change in a subgroup at risk (SAR) of further progression in the FORWARD trial of knee osteoarthritis patients treated with sprifermin. METHODS Patients were randomised 1:1:1:1:1 to: sprifermin 100 µg every 6 months (q6mo), 100 µg q12mo, 30 µg q6mo, 30 µg q12mo, or placebo for 18 months. SAR was defined as baseline medial or lateral minimum joint-space width (mJSW) 1.5-3.5 mm and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score 40-90 units. Follow-up to 3 years was included in the analysis. Treatment benefit was explored by repeated measures, linear dose-effect trends by timepoint. RESULTS The SAR comprised 161 (29%) of 549 patients. Mean difference (95% CI) in WOMAC pain at year 3 for sprifermin 100 µg q6mo vs placebo SAR was -8.75 (-22.42, 4.92) for SAR vs 0.97 (-6.22, 8.16) for the intent-to-treat population. SAR placebo patients lost more cartilage over 2 years than the modified ITT (mITT) placebo arm (mean change from baseline, mm [SD]: -0.05 [0.10] vs -0.02 [0.07]). Net total femorotibial joint thickness gain with sprifermin 100 µg q6mo (adjusted mean difference from placebo [95% CI] was similar in the SAR and in the mITT group: 0.06 [0.01, 0.11] vs 0.05 [0.03, 0.07]). CONCLUSIONS Selection for low mJSW and moderate-to-high pain at baseline resulted in more rapid disease progression and demonstrated translation of structure modification (with maintained net benefit on total cartilage thickness) into symptomatic benefit. This subgroup may represent a target population for future trials. CLINICAL TRIAL REGISTRATION NCT01919164.
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Affiliation(s)
| | - Flavie Moreau
- EMD Serono Research and Development Institute, Inc., Billerica, MA, USA
| | | | | | | | | | - Wolfgang Wirth
- Chondrometrics GmbH, Ainring, Germany; Department of Imaging and Functional Musculoskeletal Research, Institute of Anatomy & Cell Biology, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria; Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Paracelsus Medical University, Salzburg, Austria
| | - Felix Eckstein
- Chondrometrics GmbH, Ainring, Germany; Department of Imaging and Functional Musculoskeletal Research, Institute of Anatomy & Cell Biology, Paracelsus Medical University Salzburg & Nuremberg, Salzburg, Austria; Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Paracelsus Medical University, Salzburg, Austria
| | - Marc Hochberg
- University of Maryland School of Medicine, Baltimore, MD, USA
| | - Philip G Conaghan
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Biomedical Research Centre, Chapel Allerton Hospital, Leeds, UK.
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1046
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Novais EJ, Choi H, Madhu V, Suyama K, Anjo SI, Manadas B, Shapiro IM, Salgado AJ, Risbud MV. Hypoxia and Hypoxia-Inducible Factor-1α Regulate Endoplasmic Reticulum Stress in Nucleus Pulposus Cells: Implications of Endoplasmic Reticulum Stress for Extracellular Matrix Secretion. THE AMERICAN JOURNAL OF PATHOLOGY 2021; 191:487-502. [PMID: 33307037 PMCID: PMC7927276 DOI: 10.1016/j.ajpath.2020.11.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/03/2020] [Accepted: 11/24/2020] [Indexed: 12/20/2022]
Abstract
Endoplasmic reticulum (ER) stress is shown to promote nucleus pulposus (NP) cell apoptosis and intervertebral disc degeneration. However, little is known about ER stress regulation by the hypoxic disc microenvironment and its contribution to extracellular matrix homeostasis. NP cells were cultured under hypoxia (1% partial pressure of oxygen) to assess ER stress status, and gain-of-function and loss-of-function approaches were used to assess the role of hypoxia-inducible factor (HIF)-1α in this pathway. In addition, the contribution of ER stress induction on the NP cell secretome was assessed by a nontargeted quantitative proteomic analysis by sequential windowed data independent acquisition of the total high-resolution mass spectra-mass spectrometry. NP cells exhibited a lower ER stress burden under hypoxia. Knockdown of HIF-1α increased C/EBP homologous protein, protein kinase RNA-like endoplasmic reticulum kinase (PERK), and activating transcription factor 6 (ATF6) levels, whereas HIF-1α stabilization decreased the expression of ER stress markers Ddit3, Hsp5a, Atf6, and Eif2a. Interestingly, ER stress inducers tunicamycin and thapsigargin induced HIF-1α activity under hypoxia while promoting the unfolded protein response. NP cell secretome analysis demonstrated an impact of ER stress induction on extracellular matrix secretion, with decreases in collagens and cell adhesion-related proteins. Moreover, analysis of transcriptomic data of NP tissues from aged mice and degenerated human discs showed higher levels of unfolded protein response markers and decreased levels of matrix components. Our study shows, for the first time, that hypoxia and HIF-1α attenuate ER stress responses in NP cells, and ER stress promotes inefficient extracellular matrix secretion under hypoxia.
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Affiliation(s)
- Emanuel J Novais
- Department of Orthopedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania; Graduate Program in Cell Biology and Regenerative Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania; Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal; Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics (ICVS/3B's) - PT Government Associate Laboratory, Braga, Portugal
| | - Hyowon Choi
- Department of Orthopedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania; Graduate Program in Cell Biology and Regenerative Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Vedavathi Madhu
- Department of Orthopedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania; Graduate Program in Cell Biology and Regenerative Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Kaori Suyama
- Department of Orthopedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania; Department of Anatomy and Cellular Biology, Tokai University School of Medicine, Isehara, Japan
| | - Sandra I Anjo
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Bruno Manadas
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Irving M Shapiro
- Department of Orthopedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania; Graduate Program in Cell Biology and Regenerative Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - António J Salgado
- Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal; Life and Health Sciences Research Institute/Biomaterials, Biodegradables and Biomimetics (ICVS/3B's) - PT Government Associate Laboratory, Braga, Portugal
| | - Makarand V Risbud
- Department of Orthopedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania; Graduate Program in Cell Biology and Regenerative Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania.
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1047
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Kokkotis C, Moustakidis S, Baltzopoulos V, Giakas G, Tsaopoulos D. Identifying Robust Risk Factors for Knee Osteoarthritis Progression: An Evolutionary Machine Learning Approach. Healthcare (Basel) 2021; 9:260. [PMID: 33804560 PMCID: PMC8000487 DOI: 10.3390/healthcare9030260] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 12/27/2022] Open
Abstract
Knee osteoarthritis (KOA) is a multifactorial disease which is responsible for more than 80% of the osteoarthritis disease's total burden. KOA is heterogeneous in terms of rates of progression with several different phenotypes and a large number of risk factors, which often interact with each other. A number of modifiable and non-modifiable systemic and mechanical parameters along with comorbidities as well as pain-related factors contribute to the development of KOA. Although models exist to predict the onset of the disease or discriminate between asymptotic and OA patients, there are just a few studies in the recent literature that focused on the identification of risk factors associated with KOA progression. This paper contributes to the identification of risk factors for KOA progression via a robust feature selection (FS) methodology that overcomes two crucial challenges: (i) the observed high dimensionality and heterogeneity of the available data that are obtained from the Osteoarthritis Initiative (OAI) database and (ii) a severe class imbalance problem posed by the fact that the KOA progressors class is significantly smaller than the non-progressors' class. The proposed feature selection methodology relies on a combination of evolutionary algorithms and machine learning (ML) models, leading to the selection of a relatively small feature subset of 35 risk factors that generalizes well on the whole dataset (mean accuracy of 71.25%). We investigated the effectiveness of the proposed approach in a comparative analysis with well-known FS techniques with respect to metrics related to both prediction accuracy and generalization capability. The impact of the selected risk factors on the prediction output was further investigated using SHapley Additive exPlanations (SHAP). The proposed FS methodology may contribute to the development of new, efficient risk stratification strategies and identification of risk phenotypes of each KOA patient to enable appropriate interventions.
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Affiliation(s)
- Christos Kokkotis
- Institute for Bio-Economy & Agri-Technology, Center for Research and Technology Hellas, 60361 Volos, Greece;
- Department of Physical Education & Sport Science, University of Thessaly, 38221 Trikala, Greece;
| | | | - Vasilios Baltzopoulos
- Research Institute for Sport and Exercises Sciences, Liverpool John Moores University, Liverpool L3 3AF, UK;
| | - Giannis Giakas
- Department of Physical Education & Sport Science, University of Thessaly, 38221 Trikala, Greece;
| | - Dimitrios Tsaopoulos
- Institute for Bio-Economy & Agri-Technology, Center for Research and Technology Hellas, 60361 Volos, Greece;
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1048
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Carreca AP, Pravatà VM, D’Apolito D, Bonelli S, Calligaris M, Monaca E, Müller SA, Lichtenthaler SF, Scilabra SD. Quantitative Proteomics Reveals Changes Induced by TIMP-3 on Cell Membrane Composition and Novel Metalloprotease Substrates. Int J Mol Sci 2021; 22:ijms22052392. [PMID: 33673623 PMCID: PMC7957584 DOI: 10.3390/ijms22052392] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 12/11/2022] Open
Abstract
Ectodomain shedding is a key mechanism of several biological processes, including cell-communication. Disintegrin and metalloproteinases (ADAMs), together with the membrane-type matrix metalloproteinases, play a pivotal role in shedding transmembrane proteins. Aberrant shedding is associated to several pathological conditions, including arthritis. Tissue inhibitor of metalloproteases 3 (TIMP-3), an endogenous inhibitor of ADAMs and matrix metalloproteases (MMPs), has been proven to be beneficial in such diseases. Thus, strategies to increase TIMP-3 bioavailability in the tissue have been sought for development of therapeutics. Nevertheless, high levels of TIMP-3 may lead to mechanism-based side-effects, as its overall effects on cell behavior are still unknown. In this study, we used a high-resolution mass-spectrometry-based workflow to analyze alterations induced by sustained expression of TIMP-3 in the cell surfaceome. In agreement with its multifunctional properties, TIMP-3 induced changes on the protein composition of the cell surface. We found that TIMP-3 had differential effects on metalloproteinase substrates, with several that accumulated in TIMP-3-overexpressing cells. In addition, our study identified potentially novel ADAM substrates, including ADAM15, whose levels at the cell surface are regulated by the inhibitor. In conclusion, our study reveals that high levels of TIMP-3 induce modifications in the cell surfaceome and identifies molecular pathways that can be deregulated via TIMP-3-based therapies.
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Affiliation(s)
- Anna Paola Carreca
- Proteomics Group of Fondazione Ri.MED, Department of Research IRCCS ISMETT, via Ernesto Tricomi 5, 90145 Palermo, Italy; (A.P.C.); (S.B.); (M.C.)
| | - Veronica Maria Pravatà
- Division of Gene Regulation and Expression, School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK;
- German Center for Neurodegenerative Diseases (DZNE), Feodor-Lynen Strasse 17, 81377 Munich, Germany; (S.A.M.); (S.F.L.)
| | - Danilo D’Apolito
- Unità di Medicina di Laboratorio e Biotecnologie Avanzate, IRCCS-ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione), Via E. Tricomi 5, 90127 Palermo, Italy;
- Unità Prodotti Cellulari (GMP), Fondazione Ri.MED c/o IRCCS-ISMETT, Via E. Tricomi 5, 90127 Palermo, Italy
| | - Simone Bonelli
- Proteomics Group of Fondazione Ri.MED, Department of Research IRCCS ISMETT, via Ernesto Tricomi 5, 90145 Palermo, Italy; (A.P.C.); (S.B.); (M.C.)
| | - Matteo Calligaris
- Proteomics Group of Fondazione Ri.MED, Department of Research IRCCS ISMETT, via Ernesto Tricomi 5, 90145 Palermo, Italy; (A.P.C.); (S.B.); (M.C.)
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | | | - Stephan A. Müller
- German Center for Neurodegenerative Diseases (DZNE), Feodor-Lynen Strasse 17, 81377 Munich, Germany; (S.A.M.); (S.F.L.)
| | - Stefan F. Lichtenthaler
- German Center for Neurodegenerative Diseases (DZNE), Feodor-Lynen Strasse 17, 81377 Munich, Germany; (S.A.M.); (S.F.L.)
- Neuroproteomics, Klinikum rechts der Isar, Technische Universität München, 81675 Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), 81377 Munich, Germany
| | - Simone Dario Scilabra
- Proteomics Group of Fondazione Ri.MED, Department of Research IRCCS ISMETT, via Ernesto Tricomi 5, 90145 Palermo, Italy; (A.P.C.); (S.B.); (M.C.)
- Correspondence: ; Tel.: +39-(0)91-219-2430
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1049
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Ntakolia C, Kokkotis C, Moustakidis S, Tsaopoulos D. Prediction of Joint Space Narrowing Progression in Knee Osteoarthritis Patients. Diagnostics (Basel) 2021; 11:285. [PMID: 33670414 PMCID: PMC7917818 DOI: 10.3390/diagnostics11020285] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/03/2021] [Accepted: 02/09/2021] [Indexed: 02/08/2023] Open
Abstract
Osteoarthritis is a joint disease that commonly occurs in the knee (KOA). The continuous increase in medical data regarding KOA has triggered researchers to incorporate artificial intelligence analytics for KOA prognosis or treatment. In this study, two approaches are presented to predict the progression of knee joint space narrowing (JSN) in each knee and in both knees combined. A machine learning approach is proposed with the use of multidisciplinary data from the osteoarthritis initiative database. The proposed methodology employs: (i) A clustering process to identify groups of people with progressing and non-progressing JSN; (ii) a robust feature selection (FS) process consisting of filter, wrapper, and embedded techniques that identifies the most informative risk factors; (iii) a decision making process based on the evaluation and comparison of various classification algorithms towards the selection and development of the final predictive model for JSN; and (iv) post-hoc interpretation of the features' impact on the best performing model. The results showed that bounding the JSN progression of both knees can result to more robust prediction models with a higher accuracy (83.3%) and with fewer risk factors (29) compared to the right knee (77.7%, 88 risk factors) and the left knee (78.3%, 164 risk factors), separately.
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Affiliation(s)
- Charis Ntakolia
- Department of Computer Science and Biomedical Informatics, University of Thessaly, 35131 Lamia, Greece;
| | - Christos Kokkotis
- Institute for Bio-Economy & Agri-Technology, Center for Research and Technology Hellas, 38333 Volos, Greece;
- Department of Physical Education & Sport Science, University of Thessaly, 42100 Trikala, Greece
| | | | - Dimitrios Tsaopoulos
- Institute for Bio-Economy & Agri-Technology, Center for Research and Technology Hellas, 38333 Volos, Greece;
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1050
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Kwak YH, Kwak DK, Moon HS, Kim NY, Yee JS, Yoo JH. Significant Changes in Serum MicroRNAs after High Tibial Osteotomy in Medial Compartmental Knee Osteoarthritis: Potential Prognostic Biomarkers. Diagnostics (Basel) 2021; 11:258. [PMID: 33562261 PMCID: PMC7914593 DOI: 10.3390/diagnostics11020258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 01/31/2021] [Accepted: 02/04/2021] [Indexed: 12/21/2022] Open
Abstract
High tibial osteotomy (HTO) is an effective alternative for medial compartmental knee osteoarthritis (OA). Circulating microRNAs (miRNAs) are known to serve as OA-related biomarkers. The present study investigated the differential expression of serum miRNAs before and after HTO to identify potential miRNAs as prognostic biomarkers. miRNA-polymerase chain reaction (PCR) arrays were used to screen for miRNAs in the serum at preoperative and 6-month postoperative time points from six patients, and the differentially expressed miRNAs identified in the profiling stage were validated using real-time PCR at post-operative months 6 and 18 in 27 other HTO-treated patients. Among 84 miRNAs involved in the inflammatory process, three (miR-19b-3p, miR-29c-3p, and miR-424-5p) showed differential expression patterns in the profiling stage (p = 0.011, 0.015, and 0.021, respectively). Levels of these three and four other miRNAs (miR-140-3p, miR-454-3p, miR-let-7e-5p, and miR-885-5p) known to be related to OA progression were evaluated in the serum of 27 patients. Only four miRNAs (miR-19b-3p, miR-140-3p, miR-454-3p, and miR-let-7e-5p) were significantly upregulated at postoperative month 6 (p = 0.003, 0.005, 0.004, and 0.004, respectively), and only miR-140-3p was significantly upregulated up to 18 months after operation (p = 0.003). Together, this study reveals the significantly upregulated serum miRNAs after HTO as potential prognostic biomarkers; however, further studies are warranted to elucidate their clinical implications.
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Affiliation(s)
- Yoon Hae Kwak
- Division of Orthopaedic Surgery, Severance Children’s Hospital, Yonsei University College of Medicine, Seoul 03722, Korea;
| | - Dae-Kyung Kwak
- Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Korea; (D.-K.K.); (H.-S.M.); (J.-S.Y.)
| | - Hyun-Soo Moon
- Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Korea; (D.-K.K.); (H.-S.M.); (J.-S.Y.)
| | - Nan Young Kim
- Hallym Institute of Translational Genomics & Bioinformatics, Hallym University Medical Center, Anyang 14068, Korea;
| | - Jae-Sung Yee
- Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Korea; (D.-K.K.); (H.-S.M.); (J.-S.Y.)
| | - Je-Hyun Yoo
- Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Korea; (D.-K.K.); (H.-S.M.); (J.-S.Y.)
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