1
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DNMT1 and miRNAs: possible epigenetics footprints in electromagnetic fields utilization in oncology. Med Oncol 2021; 38:125. [PMID: 34495398 DOI: 10.1007/s12032-021-01574-y] [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: 05/19/2021] [Accepted: 09/01/2021] [Indexed: 10/20/2022]
Abstract
Many studies were performed to unravel the effects of different types of Electromagnetic fields (EMFs) on biological systems. Some studies were conducted to exploit EMFs for medical purposes mainly in cancer therapy. Although many studies suggest that the EMFs exposures can be effective in pre-clinical cancer issues, the treatment outcomes of these exposures on the cancer cells, especially at the molecular level, are challenging and overwhelmingly complicated yet. This article aims to review the epigenetic mechanisms that can be altered by EMFs exposures with the main emphasis on Extremely low frequency electromagnetic field (ELF-EMF). The epigenetic mechanisms are reversible and affected by environmental factors, thus, EMFs exposures can modulate these mechanisms. According to the reports, ELF-EMF exposures affect epigenetic machinery directly or through the molecular signaling pathways. ELF-EMF in association with DNA methylation, histone modification, miRNAs, and nucleosome remodeling could affect the homeostasis of cancer cells and play a role in DNA damage repairing, apoptosis induction, prevention of metastasis, differentiation, and cell cycle regulation. In general, the result of this study shows that ELF-EMF exposure probably can be effective in cancer epigenetic therapy, but more molecular and clinical investigations are needed to clarify the safe and specific dosimetric characteristics of ELF-EMF in practice.
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2
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Peng L, Fu C, Wang L, Zhang Q, Liang Z, He C, Wei Q. The Effect of Pulsed Electromagnetic Fields on Angiogenesis. Bioelectromagnetics 2021; 42:250-258. [PMID: 33675261 DOI: 10.1002/bem.22330] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/03/2021] [Accepted: 02/21/2021] [Indexed: 02/05/2023]
Abstract
A pulsed electromagnetic field (PEMF) has been used to treat inflammation-based diseases such as osteoporosis, neurological injury, and osteoarthritis. Numerous animal experiments and in vitro studies have shown that PEMF may affect angiogenesis. For ischemic diseases, in theory, blood flow may be richer by increasing the number of blood vessels which supply blood to ischemic tissue. PEMF plays a role in enhancing angiogenesis, and their clinical application may go far beyond the current scope. In this review, we analyzed and summarized the effects and possible mechanisms of PEMF on angiogenesis. Most studies have shown that PEMF with specific parameters can promote angiogenesis, which is manifested by an increased vascular growth rate and increased capillary density. The potential mechanisms consist of promoting vascular endothelial cell proliferation, migration, and tube formation, and increasing the expression level of vascular endothelial growth factor (VEGF), fibroblast growth factor 2 (FGF2), angiopoietin-2 (Ang-2), and other angiogenic growth factors. Additionally, PEMF has an impact on the activation of voltage-gated calcium channels (VGCC). Bioelectromagnetics. © 2021 Bioelectromagnetics Society.
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Affiliation(s)
- Lihong Peng
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, China
| | - Chenying Fu
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lu Wang
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, China
| | - Qing Zhang
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, China
| | - Zejun Liang
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, China
| | - Chengqi He
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, China
| | - Quan Wei
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, China
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3
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Hu H, Yang W, Zeng Q, Chen W, Zhu Y, Liu W, Wang S, Wang B, Shao Z, Zhang Y. Promising application of Pulsed Electromagnetic Fields (PEMFs) in musculoskeletal disorders. Biomed Pharmacother 2020; 131:110767. [PMID: 33152929 DOI: 10.1016/j.biopha.2020.110767] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/06/2020] [Accepted: 09/17/2020] [Indexed: 12/13/2022] Open
Abstract
Increasing evidence suggests that an exogenous electromagnetic field might be involved in many biologic processes which are of great importance for therapeutic interventions. Pulsed electromagnetic fields (PEMFs) are known to be a noninvasive, safe and effective therapy agent without apparent side effects. Numerous studies have shown that PEMFs possess the potential to become a stand-alone or adjunctive treatment modality for treating musculoskeletal disorders. However, several issues remain unresolved. Prior to their widely clinical application, further researches from well-designed, high-quality studies are still required to standardize the treatment parameters and derive the optimal protocol for health-care decision making. In this review, we aim to provide current evidence on the mechanism of action, clinical applications, and controversies of PEMFs in musculoskeletal disorders.
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Affiliation(s)
- Hongzhi Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China.
| | - Wenbo Yang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Qianwen Zeng
- Department of Pediatrics, Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Wei Chen
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - YanBin Zhu
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Weijian Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shangyu Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Baichuan Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Zengwu Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Yingze Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China.
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4
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Yamamoto H, Ueshima K, Saito M, Ikoma K, Ishida M, Goto T, Hayashi S, Ikegami A, Fujioka M, Mazda O, Kubo T. Evaluation of femoral perfusion using dynamic contrast-enhanced MRI after simultaneous initiation of electrical stimulation and steroid treatment in an osteonecrosis model. Electromagn Biol Med 2018; 37:84-94. [DOI: 10.1080/15368378.2018.1466310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Hiroki Yamamoto
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichiro Ueshima
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masazumi Saito
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuya Ikoma
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masashi Ishida
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tsuyoshi Goto
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shigeki Hayashi
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Akira Ikegami
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mikihiro Fujioka
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osam Mazda
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshikazu Kubo
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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5
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Costa EVL, Nogueira RDA. Multifractal dimension and lacunarity of yolk sac vasculature after exposure to magnetic field. Microvasc Res 2015; 99:1-7. [DOI: 10.1016/j.mvr.2015.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 02/07/2015] [Accepted: 02/09/2015] [Indexed: 01/05/2023]
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6
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Hong YC, Zhong HM, Lin T, Shi JB. Comparison of core decompression and conservative treatment for avascular necrosis of femoral head at early stage: a meta-analysis. Int J Clin Exp Med 2015; 8:5207-5216. [PMID: 26131094 PMCID: PMC4483944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 03/17/2015] [Indexed: 06/04/2023]
Abstract
The purpose of the current meta-analysis was to compare the efficacy of core decompression (CD) and conservative treatment (CT) for saving femoral heads in patients with avascular necrosis of femoral head (ANFH). Four RCTs and two CCTs involving 323 hips with 24- to 48-months follow-up were included in this review. Our results suggested CD had a trend of favorable results in contrast to other CT (OR 3.28; 95% CI 0.77-14.02; P = 0.11) but saved much less hips compared to biophysical treatments [odds ratio (OR) 0.37; 95% CI 0.18-0.74; P = 0.005]. In the stratified survival rate analysis by ANFH stage, interestingly, CD group got a significantly higher successful rate of hip joint conservation than other CT group in both stage I and stage II-III (stage I: OR 4.43; 95% CI 1.34-14.65; P = 0.01; stage II-III: OR 6.75; 95% CI 2.18-20.90; P = 0.0009). In the biophysical stimulation subgroup, however, an even higher frequency of survived hips were observed compared to CD group at stage II-III (CD vs. biophysical stimulation: OR 0.34; 95% CI 0.17-0.67; P = 0.002). In conclusion, performing CD for ANFH is effective for preventing femoral collapse within a short-term follow-up, but an even higher successful rate were expected by biophysical stimulations. Nevertheless, the short-term follow-up, the small sample size of the current meta-analysis only provide limited quality of evidence, which required confirmation from further large-scale, well-designed RCT with longer follow-up.
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Affiliation(s)
- Yu-Cai Hong
- Department of Emergency, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang UniversityNo. 3 East Qingchun Road, Hangzhou 310008, China
| | - Hui-Ming Zhong
- Department of Emergency, Research Institute of Emergency Medicine, Second Affiliated Hospital, School of Medicine, Zhejiang University88 Jiefang Road, Hangzhou 310009, China
| | - Tiao Lin
- Department of Orthopaedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University88 Jiefang Road, Hangzhou 310009, China
| | - Jian-Bin Shi
- Department of Emergency, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang UniversityNo. 3 East Qingchun Road, Hangzhou 310008, China
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7
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Ikegami A, Ueshima K, Saito M, Ikoma K, Fujioka M, Hayashi S, Ishida M, Fujiwara H, Mazda O, Kubo T. Femoral perfusion after pulsed electromagnetic field stimulation in a steroid-induced osteonecrosis model. Bioelectromagnetics 2015; 36:349-57. [PMID: 25808585 DOI: 10.1002/bem.21910] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 02/22/2015] [Indexed: 11/07/2022]
Abstract
This study was designed to evaluate femoral perfusion after pulsed electromagnetic field (PEMF) stimulation in a steroid-induced osteonecrosis rabbit model by dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). Steroid-induced osteonecrosis was produced by single intramuscular injection of methylprednisolone in 15 rabbits. Eight rabbits underwent PEMF stimulation (PEMF group) and seven did not (control group). DCE-MRI was performed before PEMF stimulation, immediately before steroid administration, and 1, 5, 10, and 14 days after steroid administration. Regions of interest were set in the bilateral proximal femora. Enhancement ratio (ER), initial slope (IS), and area under the curve (AUC) were analyzed. ER, IS, and AUC in the control group significantly decreased after steroid administration compared with before administration (P<0.05). In PEMF group, IS significantly decreased; however, ER and AUC showed no significant differences after steroid administration compared with before. ER and IS in PEMF group were higher than in control group until 10th day, and AUC was higher until 5th day after steroid administration (P<0.05). PEMF stimulation restrains the decrease in blood flow after steroid administration.
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Affiliation(s)
- Akira Ikegami
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Keiichiro Ueshima
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masazumi Saito
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuya Ikoma
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mikihiro Fujioka
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shigeki Hayashi
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masashi Ishida
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroyoshi Fujiwara
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osam Mazda
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshikazu Kubo
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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8
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Xie XH, Wang XL, Yang HL, Zhao DW, Qin L. Steroid-associated osteonecrosis: Epidemiology, pathophysiology, animal model, prevention, and potential treatments (an overview). J Orthop Translat 2015; 3:58-70. [PMID: 30035041 PMCID: PMC5982361 DOI: 10.1016/j.jot.2014.12.002] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 11/30/2014] [Accepted: 12/23/2014] [Indexed: 02/08/2023] Open
Abstract
Steroid-associated osteonecrosis (SAON) is a common orthopaedic problem caused by administration of corticosteroids prescribed for many nonorthopaedic medical conditions. We summarised different pathophysiologies of SAON which have adverse effects on multiple systems such as bone marrow stem cells (BMSCs) pool, bone matrix, cell apoptosis, lipid metabolism, and angiogenesis. Different animal models were introduced to mimic the pathophysiology of SAON and for testing the efficacy of both prevention and treatment effects of various chemical drugs, biological, and physical therapies. According to the classification of SAON, several prevention and treatment methods are applied at the different stages of SAON. For the current period, Chinese herbs may also have the potential to prevent the occurrence of SAON. In the future, genetic analysis might also be helpful to effectively predict the development of ON and provide information for personalised prevention and treatment of patients with SAON.
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Affiliation(s)
- Xin-Hui Xie
- The Department of Orthopedics, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China.,Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China.,The Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xin-Luan Wang
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China.,Translational Medicine Research and Development Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Hui-Lin Yang
- The Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - De-Wei Zhao
- Department of Orthopedics, Zhongshan Hospital of Dalian University, Dalian, China
| | - Ling Qin
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China.,Translational Medicine Research and Development Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
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9
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Beom J, Kim W, Han TR, Seo KS, Oh BM. Concurrent use of granulocyte-colony stimulating factor with repetitive transcranial magnetic stimulation did not enhance recovery of function in the early subacute stroke in rats. Neurol Sci 2014; 36:771-7. [PMID: 25528461 DOI: 10.1007/s10072-014-2046-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 12/15/2014] [Indexed: 11/28/2022]
Abstract
We investigated the additive effect of repetitive transcranial magnetic stimulation (rTMS) combined with granulocyte-colony stimulating factor (G-CSF) on functional outcome in the early subacute phase of stroke. Seven-week-old male rats were subjected to permanent middle cerebral artery occlusion (MCAo) and were divided into four groups: normal saline administration with sham rTMS (group 1, n = 15), G-CSF administration with sham rTMS (group 2, n = 15), G-CSF with 1 Hz rTMS (group 3, n = 14), and G-CSF with 20 Hz rTMS (group 4, n = 15). Animals received G-CSF or saline for 5 days from the day of MCAo and were concurrently treated with 20-min rTMS on their lesioned hemisphere for 2 weeks. Neurological functional score was worse in group 4 compared to that in group 2 on day 15. In Western blots conducted on day 25, phosphorylation of endothelial nitric oxide synthase was markedly lower in groups 2, 3, and 4 than that in group 1 in the ischemic border zone. PECAM-1 expression at ischemic core was lower in groups 4 than in group 2. Caspase-3 expression was markedly higher in groups 4 than in group 1, 2, 3 at ischemic core. Iba1 expression was higher in groups 4 than in group 1, 2 at ischemic core. G-CSF combined with rTMS administered in the early subacute phase of ischemic stroke may exert a hazardous effect on functional recovery, possibly due to impaired angiogenic mechanism, decreased cell survival, and increased inflammation.
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Affiliation(s)
- Jaewon Beom
- Department of Rehabilitation Medicine, Chungnam National University Hospital, Daejeon, 301-721, Republic of Korea
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10
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Efficacy of alendronate for preventing collapse of femoral head in adult patients with nontraumatic osteonecrosis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:716538. [PMID: 25535614 PMCID: PMC4244931 DOI: 10.1155/2014/716538] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Accepted: 09/09/2014] [Indexed: 01/28/2023]
Abstract
The purpose of the current review was to determine the efficacy of alendronate for preventing collapse of femoral head in adult patients with nontraumatic avascular osteonecrosis of femoral head (ANFH). Five randomized controlled trials (RCTs) involving 305 hips were included in this review, of which 3 studies investigated alendronate versus control/placebo and the other 2 studies compared the combination of alendronate and extracorporeal shockwave therapy (ESWT) with ESWT alone. Our results suggested that even the patients with extensive necrosis encountered much less collapse in the alendronate group than control group. In these RCTs, their data also indicated a positive short- and middle-term efficacy of alendronate treatment in joint function improvement and hip pain diminishment. With the presence of the outlier study, only insignificant overall efficacy of alendronate could be observed with substantial heterogeneities. In addition, we did not find any additive benefits of alendronate in combination with ESWT for preventing collapse compared to ESWT alone. In conclusion, there is still lack of strong evidence for supporting application of alendronate in adult patients with nontraumatic ANFH, which justified that large scale, randomized, and double-blind studies should be developed to demonstrate the confirmed efficacies, detailed indication, and optimized strategy of alendronate treatment.
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11
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Song M, Zhao D, Wei S, Liu C, Liu Y, Wang B, Zhao W, Yang K, Yang Y, Wu H. The effect of electromagnetic fields on the proliferation and the osteogenic or adipogenic differentiation of mesenchymal stem cells modulated by dexamethasone. Bioelectromagnetics 2014; 35:479-90. [PMID: 25145543 DOI: 10.1002/bem.21867] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Accepted: 05/17/2014] [Indexed: 01/29/2023]
Affiliation(s)
- Mingyu Song
- Department of Orthopedics; Tongji Hospital; Tongji Medical College, Huazhong University of Science and Technology; Wuhan Hubei China
| | - Dongming Zhao
- Department of Orthopedics; Tongji Hospital; Tongji Medical College, Huazhong University of Science and Technology; Wuhan Hubei China
| | - Sheng Wei
- Department of Orthopedics; Tongji Hospital; Tongji Medical College, Huazhong University of Science and Technology; Wuhan Hubei China
| | - Chaoxu Liu
- Department of Orthopedics; Tongji Hospital; Tongji Medical College, Huazhong University of Science and Technology; Wuhan Hubei China
| | - Yang Liu
- Department of Orthopedics; Tongji Hospital; Tongji Medical College, Huazhong University of Science and Technology; Wuhan Hubei China
| | - Bo Wang
- Department of Orthopedics; Tongji Hospital; Tongji Medical College, Huazhong University of Science and Technology; Wuhan Hubei China
| | - Wenchun Zhao
- Navy University of Engineering; Wuhan Hubei China
| | - Kaixiang Yang
- Department of Orthopedics; Tongji Hospital; Tongji Medical College, Huazhong University of Science and Technology; Wuhan Hubei China
| | - Yong Yang
- Department of Orthopedics; Tongji Hospital; Tongji Medical College, Huazhong University of Science and Technology; Wuhan Hubei China
| | - Hua Wu
- Department of Orthopedics; Tongji Hospital; Tongji Medical College, Huazhong University of Science and Technology; Wuhan Hubei China
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12
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Windisch C, Kolb W, Röhner E, Wagner M, Roth A, Matziolis G, Wagner A. Invasive electromagnetic field treatment in osteonecrosis of the femoral head: a prospective cohort study. Open Orthop J 2014; 8:125-9. [PMID: 24987486 PMCID: PMC4076618 DOI: 10.2174/1874325020140515001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Revised: 04/27/2014] [Accepted: 05/10/2014] [Indexed: 11/22/2022] Open
Abstract
Introduction : The purpose of this prospective cohort study was to compare the surgical treatment of non-ONFH in adulthood by curettage and bone grafting with treatment by curettage and bone grafting in combination with invasive electromagnetic field treatment using Magnetodyn®. This was assessed by examining whether electromagnetic field treatment has a positive additive effect on the clinical parameters modified Harris Hip Score according to Haddad, Cook and Brinker, Merle d'Aubigné hip score and visual analogue scale, and on the subsequent need for treatment by total hip arthroplasty. Materials and Methodology : The prospective, non-randomised study included 35 patients with unilateral or bilateral osteonecrosis of the femoral head. These were divided into two groups according to the surgical treatment regime and assessed over a 12-month follow-up period. The study group (Group 1) comprised 19 patients (14 men and 5 women) with a total of 22 non-ONFH, who underwent minimally invasive curettage, bone grafting and electromagnetic field treatment (Magnetodyn®) by implantation of a bipolar induction screw. The control group (Group 2) comprised 16 patients (12 men and 4 women) with a total of 18 non-ONFH, who underwent minimally invasive curettage and bone grafting without Magnetodyn® therapy. At the initial pre-operative examination and the 6 and 12-month follow-up, all patients were assessed by clinical examination and radiological monitoring, and by bilateral hip MRI. The clinical evaluation was based on the modified Harris Hip Score according to Haddad, Cook and Brinker, the Merle d`Aubigné hip score and the visual analogue scale (VAS). Results : At the time of follow-up, total hip arthroplasty (THA) had been performed in four patients in Group 1 (18%). In Group 2, four patients (22%) had received a THA (n.s.). Both procedures led to an improvement in the clinical scores (Harris Hip Score, Merle d`Aubigné score and VAS), although no significant difference was observed. Conclusion : The authors conclude that electromagnetic field treatment with Magnetodyn®, using the special signal protocol applied here, as an adjunct to curettage and autologous bone grafting to treat non-ONFH, does not produce better clinical results and does not offer better prophylaxis for the avoidance of total hip arthroplasty over all ARCO stages.
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Affiliation(s)
- C Windisch
- Department of Orthopaedic Surgery, Friedrich-Schiller-University Jena at Rudolf-Elle-Hospital Eisenberg, Klosterlausnitzer Str. 81, Eisenberg, Germany
| | - W Kolb
- Department of Trauma and Orthopaedic Surgery, Bethesda Hospital, Stuttgart, Germany
| | - E Röhner
- Department of Orthopaedic Surgery, Friedrich-Schiller-University Jena at Rudolf-Elle-Hospital Eisenberg, Klosterlausnitzer Str. 81, Eisenberg, Germany
| | - M Wagner
- Department of Orthopaedic Surgery, Friedrich-Schiller-University Jena at Rudolf-Elle-Hospital Eisenberg, Klosterlausnitzer Str. 81, Eisenberg, Germany
| | - A Roth
- Department of Orthopaedic Surgery, Friedrich-Schiller-University Jena at Rudolf-Elle-Hospital Eisenberg, Klosterlausnitzer Str. 81, Eisenberg, Germany
| | - G Matziolis
- Department of Orthopaedic Surgery, Friedrich-Schiller-University Jena at Rudolf-Elle-Hospital Eisenberg, Klosterlausnitzer Str. 81, Eisenberg, Germany
| | - A Wagner
- Department of Orthopaedic Surgery, Friedrich-Schiller-University Jena at Rudolf-Elle-Hospital Eisenberg, Klosterlausnitzer Str. 81, Eisenberg, Germany
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13
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Li JP, Chen S, Peng H, Zhou JL, Fang HS. Pulsed electromagnetic fields protect the balance between adipogenesis and osteogenesis on steroid-induced osteonecrosis of femoral head at the pre-collapse stage in rats. Bioelectromagnetics 2014; 35:170-80. [PMID: 24421074 DOI: 10.1002/bem.21833] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 11/08/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Jian-Ping Li
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of, China
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Lujan HL, DiCarlo SE. Mimicking the endogenous current of injury improves post-infarct cardiac remodeling. Med Hypotheses 2013; 81:521-3. [DOI: 10.1016/j.mehy.2013.06.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 06/17/2013] [Accepted: 06/21/2013] [Indexed: 11/30/2022]
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Ellenrieder M, Tischer T, Kreuz P, Fröhlich S, Fritsche A, Mittelmeier W. Arthroskopisch gestützte Behandlung der aseptischen Hüftkopfnekrose. OPERATIVE ORTHOPADIE UND TRAUMATOLOGIE 2013; 25:85-94. [DOI: 10.1007/s00064-011-0072-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Ding S, Peng H, Fang HS, Zhou JL, Wang Z. Pulsed electromagnetic fields stimulation prevents steroid-induced osteonecrosis in rats. BMC Musculoskelet Disord 2011; 12:215. [PMID: 21958301 PMCID: PMC3192716 DOI: 10.1186/1471-2474-12-215] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Accepted: 09/29/2011] [Indexed: 11/18/2022] Open
Abstract
Background Pulsed electromagnetic fields (PEMF) stimulation has been used successfully to treat nonunion fractures and femoral head osteonecrosis, but relatively little is known about its effects on preventing steroid-induced osteonecrosis. The purpose of the study was to investigate the effects of PEMF stimulation on the prevention of steroid-induced osteonecrosis in rats and explore the underlying mechanisms. Methods Seventy-two male adult Wistar rats were divided into three groups and treated as follows. (1) PEMF stimulation group (PEMF group, n = 24): intravenously injected with lipopolysaccharide (LPS, 10 μg/kg) on day 0 and intramuscularly injected with methylprednisolone acetate (MPSL, 20 mg/kg) on days 1, 2 and 3, then subjected to PEMF stimulation 4 h per day for 1 to 8 weeks. (2) Methylprednisolone-treated group (MPSL group, n = 24): injected the same dose of LPS and MPSL as the PEMF group but without exposure to PEMF. (3) Control group (PS group, n = 24): injected 0.9% saline in the same mode at the same time points. The incidence of osteonecrosis, serum lipid levels and the mRNA and protein expression of transforming growth factor β1 (TGF-β1) in the proximal femur were measured 1, 2, 4 and 8 weeks after the last MPSL (or saline) injection. Results The incidence of osteonecrosis in the PEMF group (29%) was significantly lower than that observed in the MPSL group (75%), while no osteonecrosis was observed in the PS group. The serum lipid levels were significantly lower in the PEMF and PS groups than in the MPSL group. Compared with the MPSL and PS groups, the mRNA expression of TGF-β1 increased, reaching a peak 1 week after PEMF treatment, and remained high for 4 weeks, then declined at 8 weeks, whereas the protein expression of TGF-β1 increased, reaching a peak at 2 weeks after PEMF treatment, and remained high for 8 weeks. Conclusions PEMF stimulation can prevent steroid-induced osteonecrosis in rats, and the underlying mechanisms involve decreased serum lipid levels and increased expression of TGF-β1.
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Affiliation(s)
- Shuai Ding
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
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Zhang P, Liu ZT, He GX, Liu JP, Feng J. Low-voltage direct-current stimulation is safe and promotes angiogenesis in rabbits with myocardial infarction. Cell Biochem Biophys 2011; 59:19-27. [PMID: 20714826 DOI: 10.1007/s12013-010-9107-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This study evaluates safety and efficacy of low-voltage direct-current (DC) electrical stimulation of angiogenesis in rabbits with myocardial infarction (MI). Thirty Japanese rabbits were divided into treatment and control groups, and MI was induced by ligation of the left circumflex (LCX) artery. Two platinum electrodes were placed directly on the epicardium on either side of LCX artery. Low-voltage DC stimulation (4.0 V/cm, 30 min/day) was performed in the treatment group immediately after surgery until fourth week post-operatively. Cardio-electrophysiological, respiratory, hematological, blood biochemical, histopathological, immunohistochemical parameters, as well as capillary density at the marginal zone of myocardial infarct were compared between treatment and control groups. Capillary density in the treatment group (63.1 ± 2.2) was significantly higher (P < 0.01) than that in controls (45.4 ± 3.9). Overall mortality was 6.7%, and the prevalences of pneumothorax and intraoperative arrhythmia were 3.3 and 6.7%, respectively. Transient hypotension, anemia, leukocytosis, hypoxemia, and a slight increase in myocardial enzymes levels were observed in both groups. Regarding electrical stimulation, no adverse reactions except a minor infiltration of inflammatory cells and mild degeneration were observed in the myocardium. It was, therefore, concluded that low-voltage DC stimulation in the MI rabbits was not only safe but also effective in promoting angiogenesis in the myocardium.
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Affiliation(s)
- Ping Zhang
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
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Isaacson BM, Bloebaum RD. Bone bioelectricity: What have we learned in the past 160 years? J Biomed Mater Res A 2010; 95:1270-9. [PMID: 20878899 DOI: 10.1002/jbm.a.32905] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Revised: 06/09/2010] [Accepted: 06/10/2010] [Indexed: 11/11/2022]
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Noninvasive up-regulation of angiopoietin-2 and fibroblast growth factor-2 in bone marrow by pulsed electromagnetic field therapy. J Orthop Sci 2010; 15:661-5. [PMID: 20953928 DOI: 10.1007/s00776-010-1510-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Accepted: 05/19/2010] [Indexed: 10/18/2022]
Abstract
BACKGROUND Pulsed electromagnetic field (PEMF) therapy has been widely used in clinical practice for bone fracture healing. However, the mechanism of its action remains to be elucidated. Our object was to investigate the mechanism by which PEMF accelerates bone fracture healing. METHODS We used 20 mice in this study. Ten mice received PEMF for 10 h/day for 1 week via the coils of a PEMF stimulation device (PEMF group), while the remaining 10 mice did not (control group). The femurs were harvested immediately after euthanasia to examine the proteins included in the bone marrow. The proteins examined by Western blotting were growth factors with angiogenetic activities, including tunica interna endothelial cell kinase-2, angiopoietin-1, angiopoietin-2, fibroblast growth factor-2, and vascular endothelial growth factor. The expression levels of angiogenesis-related proteins extracted from the bone marrow of each mouse were compared. RESULTS The expression levels of angiopoietin-2 and fibroblast growth factor-2 were significantly higher in the PEMF group than in the control group. This difference suggests that PEMF may induce an angiogenesis-prone environment in the bone marrow. Such angiogenesis acceleration represents one possible mechanism for the acceleration of bone fracture healing by PEMF. There were no significant differences between the two groups for the expression levels of tunica interna endothelial cell kinase-2, angiopoietin-1, and vascular endothelial growth factor. The lack of increase in tunica interna endothelial cell kinase-2 expression may indicate that PEMF does not unnecessarily increase blood vessels in normal bone marrow. The lack of an increase in the expression level of vascular endothelial growth factor suggests that PEMF does not have invasive effects including the induction of hypoxic conditions and inflammation on the bone marrow. CONCLUSION The angiogenesis-promoting function of PEMF may contribute to its mechanism to noninvasively accelerate bone fracture healing.
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Electromagnetic bone growth stimulation in patients with femoral neck fractures treated with screws: prospective randomized double-blind study. CURRENT ORTHOPAEDIC PRACTICE 2010. [DOI: 10.1097/bco.0b013e3181d4880f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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