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Escobar JF, Vaca-González JJ, Guevara JM, Vega JF, Hata YA, Garzón-Alvarado DA. In Vitro Evaluation of the Effect of Stimulation with Magnetic Fields on Chondrocytes. Bioelectromagnetics 2019; 41:41-51. [PMID: 31736106 DOI: 10.1002/bem.22231] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 11/01/2019] [Indexed: 12/11/2022]
Abstract
Magnetic fields (MFs) have been used as an external stimulus to increase cell proliferation in chondrocytes and extracellular matrix (ECM) synthesis of articular cartilage. However, previously published studies have not shown that MFs are homogeneous through cell culture systems. In addition, variables such as stimulation times and MF intensities have not been standardized to obtain the best cellular proliferative rate or an increase in molecular synthesis of ECM. In this work, a stimulation device, which produces homogeneous MFs to stimulate cell culture surfaces was designed and manufactured using a computational model. Furthermore, an in vitro culture of primary rat chondrocytes was established and stimulated with two MF schemes to measure both proliferation and ECM synthesis. The best proliferation rate was obtained with an MF of 2 mT applied for 3 h, every 6 h for 8 days. In addition, the increase in the synthesis of glycosaminoglycans was statistically significant when cells were stimulated with an MF of 2 mT applied for 5 h, every 6 h for 8 days. These findings suggest that a stimulation with MFs is a promising tool that could be used to improve in vitro treatments such as autologous chondrocyte implantation, either to increase cell proliferation or stimulate molecular synthesis. Bioelectromagnetics. 2020;41:41-51 © 2019 Bioelectromagnetics Society.
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Affiliation(s)
- Juan Felipe Escobar
- Biomimetics Laboratory, Instituto de Biotecnología, Universidad Nacional de Colombia, Bogotá, Colombia.,Numerical Methods and Modeling Research Group (GNUM), Universidad Nacional de Colombia, Bogotá, Colombia
| | - Juan Jairo Vaca-González
- Biomimetics Laboratory, Instituto de Biotecnología, Universidad Nacional de Colombia, Bogotá, Colombia.,Nefertiti, Wellness and New Technologies, Surgical Instrumentation Department, Fundación Universitaria del Área Andina, Bogotá, Colombia
| | - Johana Maria Guevara
- Institute for the Study of Inborn Errors of Metabolism, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Jose Félix Vega
- Electromagnetic Compatibility Research Group (EMC-UN), Universidad Nacional de Colombia, Bogotá, Colombia
| | - Yoshie Adriana Hata
- Biomimetics Laboratory, Instituto de Biotecnología, Universidad Nacional de Colombia, Bogotá, Colombia.,Numerical Methods and Modeling Research Group (GNUM), Universidad Nacional de Colombia, Bogotá, Colombia
| | - Diego Alexander Garzón-Alvarado
- Biomimetics Laboratory, Instituto de Biotecnología, Universidad Nacional de Colombia, Bogotá, Colombia.,Numerical Methods and Modeling Research Group (GNUM), Universidad Nacional de Colombia, Bogotá, Colombia
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2
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Wang T, Xie W, Ye W, He C. Effects of electromagnetic fields on osteoarthritis. Biomed Pharmacother 2019; 118:109282. [PMID: 31387007 DOI: 10.1016/j.biopha.2019.109282] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 07/20/2019] [Accepted: 07/25/2019] [Indexed: 02/05/2023] Open
Abstract
Osteoarthritis (OA), characterized by joint malfunction and chronic disability, is the most common form of arthritis. The pathogenesis of OA is unclear, yet studies have shown that it is due to an imbalance between the synthesis and decomposition of chondrocytes, cell matrices and subchondral bone, which leads to the degeneration of articular cartilage. Currently, there are many therapies that can be used to treat OA, including the use of pulsed electromagnetic fields (PEMFs). PEMFs stimulate proliferation of chondrocytes and exert a protective effect on the catabolic environment. Furthermore, this technique is beneficial for subchondral trabecular bone microarchitecture and the prevention of subchondral bone loss, ultimately blocking the progression of OA. However, it is still unknown whether PEMFs could be used to treat OA in the clinic. Furthermore, the deeper signaling pathways underlying the mechanism by which PEMFs influence OA remain unclear.
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Affiliation(s)
- Tiantian Wang
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Xie
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Wenwen Ye
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Chengqi He
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Key Laboratory of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China.
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3
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Ozdemir E, Demirkazik A, Taskıran AS, Arslan G. Effects of 5-HT 1 and 5-HT 2 Receptor Agonists on Electromagnetic Field-Induced Analgesia in Rats. Bioelectromagnetics 2019; 40:319-330. [PMID: 31152464 DOI: 10.1002/bem.22196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 04/26/2019] [Indexed: 11/10/2022]
Abstract
Much evidence demonstrates the antinociceptive effect of magnetic fields (MFs). However, the analgesic action mechanism of the electromagnetic field (EMF) is not exactly understood. The aim of the present study was to investigate the effects of 5-HT1 and 5-HT2 receptor agonists (serotonin HCl and 2,5-dimethoxy-4-iodoamphetamine [DOI] hydrochloride) on EMF-induced analgesia. In total, 66 adult male Wistar albino rats with an average body mass of 225 ± 13 g were used in this study. The animals were subjected to repeated exposures of alternating 50 Hz and 5 mT EMF for 2 h a day for 15 days. Prior to analgesia tests, serotonin HCl (5-HT1 agonist) 4 mg/kg, WAY 100635 (5-HT1 antagonist) 0.04 mg/kg, DOI hydrochloride (5-HT2 receptor agonist) 4 mg/kg, and SB 204741 (5-HT2 antagonist) 0.5 mg/kg doses were injected into rats. For statistical analysis of the data, analysis of variance was used and multiple comparisons were determined by Tukey's test. Administration of serotonin HCl MF (5 mT)-exposed rats produced a significant increase in percent maximal possible effect (% MPE) as compared with EMF group (P < 0.05). On the contrary, injection of WAY 100635 to MF-exposed rats produced a significant decrease in analgesic activity (P < 0.05). Similarly, the administration of DOI hydrochloride significantly increased % MPE values as compared with the EMF group while SB 204741 reduced it (P < 0.05). In conclusion, our results suggested that serotonin 5-HT1 and 5-HT2 receptors play an important role in EMF-induced analgesia; however, further research studies are necessary to understand the mechanism. Bioelectromagnetics. 2019;40:319-330. © 2019 Bioelectromagnetics Society.
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Affiliation(s)
- Ercan Ozdemir
- Departments of Physiology, School of Medicine, Cumhuriyet University, Sivas, Turkey
| | - Ayse Demirkazik
- Departments of Biophysics, School of Medicine, Cumhuriyet University, Sivas, Turkey
| | - Ahmet Sevki Taskıran
- Departments of Physiology, School of Medicine, Cumhuriyet University, Sivas, Turkey
| | - Gokhan Arslan
- Departments of Physiology, School of Medicine, Ondokuz Mayıs University, Samsun, Turkey
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Vaca-González JJ, Guevara JM, Moncayo MA, Castro-Abril H, Hata Y, Garzón-Alvarado DA. Biophysical Stimuli: A Review of Electrical and Mechanical Stimulation in Hyaline Cartilage. Cartilage 2019; 10:157-172. [PMID: 28933195 PMCID: PMC6425540 DOI: 10.1177/1947603517730637] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE Hyaline cartilage degenerative pathologies induce morphologic and biomechanical changes resulting in cartilage tissue damage. In pursuit of therapeutic options, electrical and mechanical stimulation have been proposed for improving tissue engineering approaches for cartilage repair. The purpose of this review was to highlight the effect of electrical stimulation and mechanical stimuli in chondrocyte behavior. DESIGN Different information sources and the MEDLINE database were systematically revised to summarize the different contributions for the past 40 years. RESULTS It has been shown that electric stimulation may increase cell proliferation and stimulate the synthesis of molecules associated with the extracellular matrix of the articular cartilage, such as collagen type II, aggrecan and glycosaminoglycans, while mechanical loads trigger anabolic and catabolic responses in chondrocytes. CONCLUSION The biophysical stimuli can increase cell proliferation and stimulate molecules associated with hyaline cartilage extracellular matrix maintenance.
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Affiliation(s)
- Juan J. Vaca-González
- Biomimetics Laboratory, Instituto de Biotecnología, Universidad Nacional de Colombia, Bogota, Colombia
- Numerical Methods and Modeling Research Group (GNUM), Universidad Nacional de Colombia, Bogota, Colombia
| | - Johana M. Guevara
- Institute for the Study of Inborn Errors of Metabolism, Pontificia Universidad Javeriana, Bogota, Colombia
| | - Miguel A. Moncayo
- Biomimetics Laboratory, Instituto de Biotecnología, Universidad Nacional de Colombia, Bogota, Colombia
- Numerical Methods and Modeling Research Group (GNUM), Universidad Nacional de Colombia, Bogota, Colombia
| | - Hector Castro-Abril
- Biomimetics Laboratory, Instituto de Biotecnología, Universidad Nacional de Colombia, Bogota, Colombia
- Numerical Methods and Modeling Research Group (GNUM), Universidad Nacional de Colombia, Bogota, Colombia
| | - Yoshie Hata
- Biomimetics Laboratory, Instituto de Biotecnología, Universidad Nacional de Colombia, Bogota, Colombia
| | - Diego A. Garzón-Alvarado
- Biomimetics Laboratory, Instituto de Biotecnología, Universidad Nacional de Colombia, Bogota, Colombia
- Numerical Methods and Modeling Research Group (GNUM), Universidad Nacional de Colombia, Bogota, Colombia
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Gomes Gobbi R, Pastore E Silva AL, Kawamura Demange M, Pécora JR, Espregueira-Mendes J, Camanho GL. Clinical results of pulsed signal therapy on patellofemoral syndrome with patellar chondropathy. Bioelectromagnetics 2019; 40:83-90. [PMID: 30763468 DOI: 10.1002/bem.22172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 01/15/2019] [Indexed: 12/31/2022]
Abstract
This study was designed to evaluate the effect of pulsed signal therapy (PST) on patellofemoral pain syndrome associated with patellar chondropathy. A prospective randomized double-blind placebo controlled trial included 25 patients (41 knees) between 20 and 50 years with pain due to isolated patellofemoral syndrome with chondropathy. PST group received nine 60-min daily sessions of PST treatment. Control group received the same protocol of blinded placebo treatment. The main outcome was change from baseline Kujala score at 3 months. After 3 months, patients in the control group received effective treatment (placebo post-treatment). All patients were then followed, for up to 12 months. Seventeen knees (5 males and 12 females, mean age 36.7 ± 7.9) received placebo and 24 knees (8 males and 16 females, mean age 35.5 ± 8.9) received PST. By the third month, PST group exhibited a mean change from baseline of 9.63 ± 7.5 Kujala points, compared to 0.53 ± 1.8 in the placebo group (P < 0.001). A significant progressive improvement was seen in the PST group between the 3rd and 6th and between the 6th and 12th month (P < 0.016). Patients initially allocated in the control group also improved at 3 months (P < 0.001) and 6 months (P = 0.005) post-effective treatment. In conclusion, PST in patellofemoral pain syndrome with chondropathy was effective compared to placebo at 3 months, showing an important improvement of Kujala score. The improvement was progressive and maintained up to 12 months. PST is safe and should be considered as a non-invasive option for management of this condition. Bioelectromagnetics. 40:83-90, 2019. © 2019 Bioelectromagnetics Society.
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Affiliation(s)
- Riccardo Gomes Gobbi
- Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | | | - Marco Kawamura Demange
- Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - José Ricardo Pécora
- Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - João Espregueira-Mendes
- Clínica do Dragão, Espregueira-Mendes Sports Centre-FIFA Medical Centre of Excellence, Porto, Portugal.,Dom Henrique Research Centre, Porto, Portugal.,Orthopaedics Department of Minho University, Minho, Portugal.,3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco/Guimarães, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Gilberto Luis Camanho
- Faculdade de Medicina, Hospital das Clinicas HCFMUSP, Universidade de Sao Paulo, Sao Paulo, Brazil
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Dahmen J, Lambers KTA, Reilingh ML, van Bergen CJA, Stufkens SAS, Kerkhoffs GMMJ. No superior treatment for primary osteochondral defects of the talus. Knee Surg Sports Traumatol Arthrosc 2018; 26:2142-2157. [PMID: 28656457 PMCID: PMC6061466 DOI: 10.1007/s00167-017-4616-5] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 06/19/2017] [Indexed: 02/02/2023]
Abstract
PURPOSE The purpose of this systematic literature review is to detect the most effective treatment option for primary talar osteochondral defects in adults. METHODS A literature search was performed to identify studies published from January 1996 to February 2017 using PubMed (MEDLINE), EMBASE, CDSR, DARE, and CENTRAL. Two authors separately and independently screened the search results and conducted the quality assessment using the Newcastle-Ottawa Scale. Subsequently, success rates per separate study were calculated. Studies methodologically eligible for a simplified pooling method were combined. RESULTS Fifty-two studies with 1236 primary talar osteochondral defects were included of which forty-one studies were retrospective and eleven prospective. Two randomised controlled trials (RCTs) were identified. Heterogeneity concerning methodological nature was observed, and there was variety in reported success rates. A simplified pooling method performed for eleven retrospective case series including 317 ankles in the bone marrow stimulation group yielded a success rate of 82% [CI 78-86%]. For seven retrospective case series investigating an osteochondral autograft transfer system or an osteoperiosteal cylinder graft insertion with in total 78 included ankles the pooled success rate was calculated to be 77% [CI 66-85%]. CONCLUSIONS For primary talar osteochondral defects, none of the treatment options showed any superiority over others. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Jari Dahmen
- Department of Orthopedic Surgery, Academic Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Academic Center for Evidence based Sports medicine (ACES), Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Kaj T. A. Lambers
- Department of Orthopedic Surgery, Academic Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Academic Center for Evidence based Sports medicine (ACES), Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Mikel L. Reilingh
- Department of Orthopedic Surgery, Academic Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Academic Center for Evidence based Sports medicine (ACES), Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Christiaan J. A. van Bergen
- Department of Orthopedic Surgery, Academic Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Academic Center for Evidence based Sports medicine (ACES), Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Department of Orthopedic Surgery, Amphia Hospital, Breda, The Netherlands
| | - Sjoerd. A. S. Stufkens
- Department of Orthopedic Surgery, Academic Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Academic Center for Evidence based Sports medicine (ACES), Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Gino M. M. J. Kerkhoffs
- Department of Orthopedic Surgery, Academic Medical Centre, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Academic Center for Evidence based Sports medicine (ACES), Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands ,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
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Iwasa K, Reddi AH. Pulsed Electromagnetic Fields and Tissue Engineering of the Joints. TISSUE ENGINEERING PART B-REVIEWS 2017; 24:144-154. [PMID: 29020880 DOI: 10.1089/ten.teb.2017.0294] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Bone and joint formation, maintenance, and regeneration are regulated by both chemical and physical signals. Among the physical signals there is an increasing realization of the role of pulsed electromagnetic fields (PEMF) in the treatment of nonunions of bone fractures. The discovery of the piezoelectric properties of bone by Fukada and Yasuda in 1953 in Japan established the foundation of this field. Pioneering research by Bassett and Brighton and their teams resulted in the approval by the Food and Drug Administration (FDA) of the use of PEMF in the treatment of fracture healing. Although PEMF has potential applications in joint regeneration in osteoarthritis (OA), this evolving field is still in its infancy and offers novel opportunities. METHODS We have systematically reviewed the literature on the influence of PEMF in joints, including articular cartilage, tendons, and ligaments, of publications from 2000 to 2016. CONCLUSIONS PEMF stimulated chondrocyte proliferation, differentiation, and extracellular matrix synthesis by release of anabolic morphogens such as bone morphogenetic proteins and anti-inflammatory cytokines by adenosine receptors A2A and A3 in both in vitro and in vivo investigations. It is noteworthy that in clinical translational investigations a beneficial effect was observed on improving function in OA knees. However, additional systematic studies on the mechanisms of action of PEMF on joints and tissues therein, articular cartilage, tendons, and ligaments are required.
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Affiliation(s)
- Kenjiro Iwasa
- Department of Orthopaedic Surgery, Lawrence Ellison Center for Tissue Regeneration and Repair, School of Medicine, University of California , Davis, Davis, California
| | - A Hari Reddi
- Department of Orthopaedic Surgery, Lawrence Ellison Center for Tissue Regeneration and Repair, School of Medicine, University of California , Davis, Davis, California
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Yang X, He H, Zhou Y, Zhou Y, Gao Q, Wang P, He C. Pulsed electromagnetic field at different stages of knee osteoarthritis in rats induced by low-dose monosodium iodoacetate: Effect on subchondral trabecular bone microarchitecture and cartilage degradation. Bioelectromagnetics 2016; 38:227-238. [PMID: 28026095 DOI: 10.1002/bem.22028] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 12/03/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Xiaotian Yang
- Department of Rehabilitation Medicine; West China Hospital; Sichuan University; Chengdu China
- Key Laboratory of Rehabilitation Medicine in Sichuan; Chengdu China
| | - Hongchen He
- Department of Rehabilitation Medicine; West China Hospital; Sichuan University; Chengdu China
- Key Laboratory of Rehabilitation Medicine in Sichuan; Chengdu China
| | - Yuan Zhou
- Institute for Disaster Management and Reconstruction of Sichuan University and Hong Kong Polytechnic University; Chengdu China
| | - Yujing Zhou
- Department of Rehabilitation Medicine; West China Hospital; Sichuan University; Chengdu China
- Key Laboratory of Rehabilitation Medicine in Sichuan; Chengdu China
| | - Qiang Gao
- Department of Rehabilitation Medicine; West China Hospital; Sichuan University; Chengdu China
- Key Laboratory of Rehabilitation Medicine in Sichuan; Chengdu China
| | - Pu Wang
- Department of Rehabilitation Medicine; West China Hospital; Sichuan University; Chengdu China
- Key Laboratory of Rehabilitation Medicine in Sichuan; Chengdu China
| | - Chengqi He
- Department of Rehabilitation Medicine; West China Hospital; Sichuan University; Chengdu China
- Key Laboratory of Rehabilitation Medicine in Sichuan; Chengdu China
- Institute for Disaster Management and Reconstruction of Sichuan University and Hong Kong Polytechnic University; Chengdu China
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Reilingh ML, van Bergen CJA, Gerards RM, van Eekeren IC, de Haan RJ, Sierevelt IN, Kerkhoffs GMMJ, Krips R, Meuffels DE, van Dijk CN, Blankevoort L. Effects of Pulsed Electromagnetic Fields on Return to Sports After Arthroscopic Debridement and Microfracture of Osteochondral Talar Defects: A Randomized, Double-Blind, Placebo-Controlled, Multicenter Trial. Am J Sports Med 2016; 44:1292-300. [PMID: 26903214 DOI: 10.1177/0363546515626544] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Osteochondral defects (OCDs) of the talus usually affect athletic patients. The primary surgical treatment consists of arthroscopic debridement and microfracture. Various possibilities have been suggested to improve the recovery process after debridement and microfracture. A potential solution to obtain this goal is the application of pulsed electromagnetic fields (PEMFs), which stimulate the repair process of bone and cartilage. HYPOTHESIS The use of PEMFs after arthroscopic debridement and microfracture of an OCD of the talus leads to earlier resumption of sports and an increased number of patients that resume sports. STUDY DESIGN Randomized controlled trial; Level of evidence, 1. METHODS A total of 68 patients were randomized to receive either PEMFs (n = 36) or placebo (n = 32) after arthroscopic treatment of an OCD of the talus. The primary outcomes (ie, the number of patients who resumed sports and time to resumption of sports) were analyzed with Kaplan-Meier curves as well as Mann-Whitney U, chi-square, and log-rank tests. Secondary functional outcomes were assessed with questionnaires (American Orthopaedic Foot and Ankle Society ankle-hindfoot score, Foot and Ankle Outcome Score, EuroQol, and numeric rating scales for pain and satisfaction) at multiple time points up to 1-year follow-up. To assess bone repair, computed tomography scans were obtained at 2 weeks and 1 year postoperatively. RESULTS Almost all outcome measures improved significantly in both groups. The percentage of sport resumption (PEMF, 79%; placebo, 80%; P = .95) and median time to sport resumption (PEMF, 17 weeks; placebo, 16 weeks; P = .69) did not differ significantly between the treatment groups. Likewise, there were no significant between-group differences with regard to the secondary functional outcomes and the computed tomography results. CONCLUSION PEMF does not lead to a higher percentage of patients who resume sports or to earlier resumption of sports after arthroscopic debridement and microfracture of talar OCDs. Furthermore, no differences were found in bone repair between groups. REGISTRATION Netherlands Trial Register NTR1636.
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Affiliation(s)
- Mikel L Reilingh
- Orthopaedic Research Center Amsterdam, Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, the Netherlands
| | - Christiaan J A van Bergen
- Orthopaedic Research Center Amsterdam, Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, the Netherlands
| | - Rogier M Gerards
- Orthopaedic Research Center Amsterdam, Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, the Netherlands
| | - Inge C van Eekeren
- Orthopaedic Research Center Amsterdam, Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, the Netherlands
| | - Rob J de Haan
- Clinical Research Unit, Academic Medical Center, Amsterdam, the Netherlands
| | - Inger N Sierevelt
- Department of Orthopaedic Surgery, Slotervaart Hospital, Amsterdam, the Netherlands
| | - Gino M M J Kerkhoffs
- Orthopaedic Research Center Amsterdam, Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, the Netherlands
| | - Rover Krips
- Department of Orthopaedic Surgery, Diaconessenhuis, Leiden, the Netherlands
| | - Duncan E Meuffels
- Department of Orthopaedic Surgery, Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - C N van Dijk
- Orthopaedic Research Center Amsterdam, Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, the Netherlands
| | - Leendert Blankevoort
- Orthopaedic Research Center Amsterdam, Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, the Netherlands
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Ross CL, Teli T, Harrison BS. Effect of electromagnetic field on cyclic adenosine monophosphate (cAMP) in a human mu-opioid receptor cell model. Electromagn Biol Med 2015; 35:206-13. [PMID: 26151161 DOI: 10.3109/15368378.2015.1043556] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
During the cell communication process, endogenous and exogenous signaling affect normal as well as pathological developmental conditions. Exogenous influences such as extra-low-frequency electromagnetic field (EMF) have been shown to effect pain and inflammation by modulating G-protein receptors, down-regulating cyclooxygenase-2 activity, and affecting the calcium/calmodulin/nitric oxide pathway. Investigators have reported changes in opioid receptors and second messengers, such as cyclic adenosine monophosphate (cAMP), in opiate tolerance and dependence by showing how repeated exposure to morphine decreases adenylate cyclase activity causing cAMP to return to control levels in the tolerant state, and increase above control levels during withdrawal. Resonance responses to biological systems using exogenous EMF signals suggest that frequency response characteristics of the target can determine the EMF biological response. In our past research we found significant down regulation of inflammatory markers tumor necrosis factor alpha (TNF-α) and nuclear factor kappa B (NFκB) using 5 Hz EMF frequency. In this study cAMP was stimulated in Chinese Hamster Ovary (CHO) cells transfected with human mu-opioid receptors, then exposed to 5 Hz EMF, and outcomes were compared with morphine treatment. Results showed a 23% greater inhibition of cAMP-treating cells with EMF than with morphine. In order to test our results for frequency specific effects, we ran identical experiments using 13 Hz EMF, which produced results similar to controls. This study suggests the use of EMF as a complementary or alternative treatment to morphine that could both reduce pain and enhance patient quality of life without the side-effects of opiates.
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Affiliation(s)
- Christina L Ross
- a Wake Forest Institute for Regenerative Medicine , Wake Forest Baptist Health , Winston-Salem , NC , USA.,b Wake Forest Center for Integrative Medicine , Wake Forest Baptist Health , Winston-Salem , NC , USA
| | - Thaleia Teli
- a Wake Forest Institute for Regenerative Medicine , Wake Forest Baptist Health , Winston-Salem , NC , USA
| | - Benjamin S Harrison
- a Wake Forest Institute for Regenerative Medicine , Wake Forest Baptist Health , Winston-Salem , NC , USA
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11
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Veronesi F, Fini M, Giavaresi G, Ongaro A, De Mattei M, Pellati A, Setti S, Tschon M. Experimentally induced cartilage degeneration treated by pulsed electromagnetic field stimulation; an in vitro study on bovine cartilage. BMC Musculoskelet Disord 2015; 16:308. [PMID: 26480822 PMCID: PMC4616002 DOI: 10.1186/s12891-015-0760-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 10/07/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Osteoarthritis (OA) is the final result of progressive alterations to articular cartilage structure, composition and cellularity, followed by an increase in the concentration of pro-inflammatory cytokines in joint synovial fluid. Even though the effect of pulsed electromagnetic field (PEMF) stimulation in counteracting OA progression and inflammation is of increasing interest, because of its anabolic and anti-inflammatory properties, the present study aimed to improve the knowledge on cartilage extracellular matrix (ECM) and chondrocyte changes related to the exposure of PEMF, from a histological and histomorphometric point of view. METHODS An in vitro OA model was realized, culturing bovine cartilage explants with a high dose of interleukin 1β (IL1β, 50 ng/ml) at different experimental times (24 h, and 7 and 21 days). The effects of PEMFs (75 Hz, 1.5 mT) were evaluated in cartilage explants treated with IL1β or not (control), in terms of cartilage structure, cellularity and proteoglycans, glycosaminoglycans, collagen II and transforming growth factor β1 synthesis by using histology, histomorphometry and immunohistochemistry. RESULTS Making a comparison with control cartilage, IL1β-treated explants showed a decrease in cartilage matrix, structure and cellularity parameters. PEMFs were able to counteract the progression of OA acting on both cartilage cellularity and ECM in cartilage previously treated with IL1β. Normal distribution (Kolmogroc-Smirnov test) and homoscedasticity (Levene test) of data were verified, then, the non-parametric Kruskal Wallis test followed by Mann-Whiteny U test for pairwise comparisons were performed. The p-value was adjusted according to the Dunn-Sidak correction. CONCLUSIONS These results, obtained by culturing and treating cartilage explants from two different joints, confirmed that PEMF stimulation can be used as adjuvant therapy to preserve cartilage from detrimental effects of high inflammatory cytokine levels during OA.
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Affiliation(s)
- Francesca Veronesi
- Department Rizzoli RIT, Rizzoli Orthopedic Institute, Laboratory of Biocompatibility, Innovative Technologies and Advanced Therapies, Bologna, 40136, Italy.
| | - Milena Fini
- Department Rizzoli RIT, Rizzoli Orthopedic Institute, Laboratory of Biocompatibility, Innovative Technologies and Advanced Therapies, Bologna, 40136, Italy. .,Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopedic Institute, Bologna, 40136, Italy.
| | - Gianluca Giavaresi
- Department Rizzoli RIT, Rizzoli Orthopedic Institute, Laboratory of Biocompatibility, Innovative Technologies and Advanced Therapies, Bologna, 40136, Italy. .,Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopedic Institute, Bologna, 40136, Italy.
| | - Alessia Ongaro
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, 44121, Italy.
| | - Monica De Mattei
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, 44121, Italy.
| | - Agnese Pellati
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, 44121, Italy.
| | - Stefania Setti
- IGEA - Clinical Biophysic, Carpi (Modena), 41012, Italy.
| | - Matilde Tschon
- Department Rizzoli RIT, Rizzoli Orthopedic Institute, Laboratory of Biocompatibility, Innovative Technologies and Advanced Therapies, Bologna, 40136, Italy. .,Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopedic Institute, Bologna, 40136, Italy.
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Abstract
Articular cartilage is a unique load-bearing connective tissue with a low intrinsic capacity for repair and regeneration. Its avascularity makes it relatively hypoxic and its unique extracellular matrix is enriched with cations, which increases the interstitial fluid osmolarity. Several physicochemical and biomechanical stimuli are reported to influence chondrocyte metabolism and may be utilized for regenerative medical approaches. In this review article, we summarize the most relevant stimuli and describe how ion channels may contribute to cartilage homeostasis, with special emphasis on intracellular signaling pathways. We specifically focus on the role of calcium signaling as an essential mechanotransduction component and highlight the role of phosphatase signaling in this context.
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Affiliation(s)
- Holger Jahr
- Department of Orthopaedic Surgery, University Hospital RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
- The D-BOARD European Consortium for Biomarker Discovery, Surrey, UK
| | - Csaba Matta
- The D-BOARD European Consortium for Biomarker Discovery, Surrey, UK
- Department of Veterinary Preclinical Sciences, School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Duke of Kent Building, Guildford, Surrey GU2 7XH UK
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, 4032 Hungary
| | - Ali Mobasheri
- The D-BOARD European Consortium for Biomarker Discovery, Surrey, UK
- Department of Veterinary Preclinical Sciences, School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Duke of Kent Building, Guildford, Surrey GU2 7XH UK
- Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Arthritis Research UK Pain Centre, Medical Research Council and Arthritis Research UK Centre for Musculoskeletal Ageing Research, University of Nottingham, Queen’s Medical Centre, Nottingham, NG7 2UH UK
- Center of Excellence in Genomic Medicine Research (CEGMR), King Fahd Medical Research Center (KFMRC), King AbdulAziz University, Jeddah, 21589 Kingdom of Saudi Arabia
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Brady MA, Waldman SD, Ethier CR. The Application of Multiple Biophysical Cues to Engineer Functional Neocartilage for Treatment of Osteoarthritis. Part I: Cellular Response. TISSUE ENGINEERING PART B-REVIEWS 2015; 21:1-19. [DOI: 10.1089/ten.teb.2013.0757] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mariea A. Brady
- Department of Bioengineering, Imperial College London, South Kensington, London, United Kingdom
| | | | - C. Ross Ethier
- Department of Bioengineering, Imperial College London, South Kensington, London, United Kingdom
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia
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