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Matesanz-García L, Schmid AB, Cáceres-Pajuelo JE, Cuenca-Martínez F, Arribas-Romano A, González-Zamorano Y, Goicoechea-García C, Fernández-Carnero J. Effect of Physiotherapeutic Interventions on Biomarkers of Neuropathic Pain: A Systematic Review of Preclinical Literature. THE JOURNAL OF PAIN 2022; 23:1833-1855. [PMID: 35768044 PMCID: PMC7613788 DOI: 10.1016/j.jpain.2022.06.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 06/14/2022] [Accepted: 06/14/2022] [Indexed: 02/02/2023]
Abstract
The purpose of this systematic review was to evaluate the effects of physiotherapeutic interventions on biomarkers of neuropathic pain in preclinical models of peripheral neuropathic pain (PNP). The search was performed in Pubmed, Web of Science, EMBASE, Cochrane, Cinhal, Psycinfo, Scopus, Medline, and Science Direct. Studies evaluating any type of physiotherapy intervention for PNP (systemic or traumatic) were included. Eighty-one articles were included in this review. The most common PNP model was chronic constriction injury, and the most frequently studied biomarkers were related to neuro-immune processes. Exercise therapy and Electro-acupuncture were the 2 most frequently studied physiotherapy interventions while acupuncture and joint mobilization were less frequently examined. Most physiotherapeutic interventions modulated the expression of biomarkers related to neuropathic pain. Whereas the results seem promising; they have to be considered with caution due to the high risk of bias of included studies and high heterogeneity of the type and anatomical localization of biomarkers reported. The review protocol is registered on PROSPERO (CRD42019142878). PERSPECTIVE: This article presents the current evidence about physiotherapeutic interventions on biomarkers of neuropathic pain in preclinical models of peripheral neuropathic pain. Existing findings are reviewed, and relevant data are provided on the effectiveness of each physiotherapeutic modality, as well as its certainty of evidence and clinical applicability.
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Affiliation(s)
- Luis Matesanz-García
- Escuela Internacional de Doctorado, Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Spain; Departamento de Fisioterapia, Centro Superior de Estudios Universitarios La Salle, Universidad Autónoma de Madrid, Madrid, Spain
| | - Annina B Schmid
- Nuffield Department for Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
| | | | - Ferran Cuenca-Martínez
- Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Valencia, Spain.
| | - Alberto Arribas-Romano
- Escuela Internacional de Doctorado, Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Spain; Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Rey Juan Carlos University, Madrid, Spain
| | - Yeray González-Zamorano
- Escuela Internacional de Doctorado, Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, Alcorcón, Spain; Grupo de Investigación de Neurorrehabilitación del Daño Cerebral y los Trastornos del Movimiento (GINDAT), Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | | | - Josué Fernández-Carnero
- Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Rey Juan Carlos University, Madrid, Spain; Grupo de Investigación de Neurorrehabilitación del Daño Cerebral y los Trastornos del Movimiento (GINDAT), Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain; Motion in Brains Research Group, Institute of Neuroscience and Sciences of the Movement (INCIMOV), Centro Superior de Estudios Universitarios La Salle, Universidad Autónoma de Madrid, Madrid, Spain; Grupo Multidisciplinar de Investigación y Tratamiento del Dolor, Grupo de Excelencia Investigadora URJC-Banco de Santander, Madrid, Spain; La Paz Hospital Institute for Health Research, IdiPAZ, Madrid, Spain
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Mayrovitz HN, Maqsood R, Tawakalzada AS. Do Magnetic Fields Have a Place in Treating Vascular Complications in Diabetes? Cureus 2022; 14:e24883. [PMID: 35698680 PMCID: PMC9184174 DOI: 10.7759/cureus.24883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/09/2022] [Indexed: 11/18/2022] Open
Abstract
The use of electromagnetic field therapy (EMFT) is a non-invasive, potential alternative or complementary choice in the treatment of wounds, chronic pain, neuropathy, and other medical conditions, including tissue repair and cell proliferation. Static magnetic fields (SMFs) have been reported to increase microcirculatory blood flow by mediating vasodilation via nitric oxide. Studies report that SMF exposure causes homeostatic, normalizing effects on the vascular tone that may have beneficial effects in situations where tissue perfusion is limited, such as may be present in diabetes. Pulsed electromagnetic fields (PEMFs) have also shown promise in treating diabetic wounds by improving wound healing rates and other attributes. Our purpose was to critically review prior applications of EMFT for relevancy and effectiveness in treating diabetic complications. The goal was to provide information to allow for informed decisions on the possible use of these modalities in the treatment of persons with diabetic complications. The focus was on the following major areas: wound healing, neuropathy, blood glucose control, blood flow, inflammation and oxidative stress.
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Coskun C, Ocal I, Gunay I. A Low-Frequency Pulsed Magnetic Field Reduces Neuropathic Pain by Regulating NaV 1.8 and NaV 1.9 Sodium Channels at the Transcriptional Level in Diabetic Rats. Bioelectromagnetics 2021; 42:357-370. [PMID: 33998011 DOI: 10.1002/bem.22343] [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: 07/30/2020] [Revised: 12/14/2020] [Accepted: 04/09/2021] [Indexed: 12/19/2022]
Abstract
Low-frequency pulsed magnetic field (LF-PMF) application is a non-invasive, easy, and inexpensive treatment method in pain management. However, the molecular mechanism underlying the effect of LF-PMF on pain is not fully understood. Considering the obvious dysregulations of gene expression observed in certain types of voltage-gated sodium channels (VGSCs) in pain conditions, the present study tested the hypothesis that LF-PMF shows its pain-relieving effect by regulating genes that code VGSCs proteins. Five experimental rat groups (Control, Streptozotocin-induced experimental painful diabetic neuropathy (PDN), PDN Sham, PDN 10 Hz PMF, and PDN 30 Hz PMF) were established. After the pain formation in PDN groups, the magnetic field groups were exposed to 10/30 Hz, 1.5 mT PMF for 4 weeks, an hour daily. Progression of pain was evaluated using behavioral pain tests during the entire experimental processes. After the end of PMF treatment, SCN9A (NaV1.7 ), SCN10A (NaV1.8 ), SCN11A (NaV1.9 ), and SCN3A (NaV1.3 ) gene expression level changes were determined by analyzing real-time polymerase chain reaction results. We found that 10 Hz PMF application was more effective than 30 Hz on pain management. In addition, NaV1.7 and NaV1.3 transcriptions were upregulated while NaV1.8 and NaV1.9 were downregulated in painful conditions. Notably, the downregulated expression of the genes encoding NaV1.8 and NaV1.9 were re-regulated and increased to control level by 10 Hz PMF application. Consequently, it may be deduced that 10 Hz PMF application reduces pain by modulating certain VGSCs at the transcriptional level. © 2021 Bioelectromagnetics Society.
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Affiliation(s)
- Cagil Coskun
- Department of Biophysics, Faculty of Medicine, Cukurova University, Adana, Turkey
| | - Isil Ocal
- Department of Biophysics, Faculty of Medicine, Cukurova University, Adana, Turkey
| | - Ismail Gunay
- Department of Biophysics, Faculty of Medicine, Cukurova University, Adana, Turkey
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Mert T, Yaman S. Pro-inflammatory or anti-inflammatory effects of pulsed magnetic field treatments in rats with experimental acute inflammation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:31543-31554. [PMID: 32495202 DOI: 10.1007/s11356-020-09401-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
In this study, we evaluated the possible effects of sequenced pulsed magnetic fields (PMF) of 1-mT treatments with designed different frequencies (PMF-1-1, 3, 5, 7 Hz or PMF-2-7, 9, 12, 14 Hz) on the inflammatory signs such as abnormal pain behaviors, hyperalgesia and allodynia, edema, and fever in carrageenan (CG)-induced hind paw inflammation model in rats. Paw tissues were also histologically examined. PMF exposure was applied 3 times in 24 h. CG injection gradually decreased the thermal latencies and mechanical threshold and caused significant increases in temperature and mass of paw. PMF treatments significantly reduced the temperature and mass in the paw of rats with inflammation. PMF-1 treatments caused significant increases in the latencies and thresholds. However, administration of PMF-2 treatment was significantly decreased the latency and threshold. Furthermore, the histological pieces of evidence also suggested the anti-inflammatory effects of PMF-1 treatments or inflammatory actions of PMF-2 treatments. Findings presented in this paper suggest that 1-mT PMF treatments may have anti-edematous and antipyretics activities in inflamed rats. However, the effects of PMF treatments on abnormal pain hypersensitivities may be different. PMF treatments may make inflammatory pain relief or worse in inflamed rats depending on the PMF frequencies in sequence.
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Affiliation(s)
- Tufan Mert
- Department of Biophysics, Faculty of Medicine, Bolu Abant Izzet Baysal University, 14030, Bolu, Turkey.
| | - Selma Yaman
- Department of Biophysics, Faculty of Medicine, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey
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Tuhanioğlu B, Erkan SO, Gürgen SG, Özdaş T, Görgülü O, Çiçek F, Günay İ. The effect of very low dose pulsed magnetic waves on cochlea. Braz J Otorhinolaryngol 2019; 85:282-289. [PMID: 30583943 PMCID: PMC9442804 DOI: 10.1016/j.bjorl.2018.10.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 10/05/2018] [Accepted: 10/28/2018] [Indexed: 01/15/2023] Open
Affiliation(s)
- Birgül Tuhanioğlu
- Health Science University Adana City Hospital, Department of Otorhinolaryngology-Head and Neck Surgery, Adana, Turkey.
| | - Sanem Okşan Erkan
- Health Science University Adana City Hospital, Department of Otorhinolaryngology-Head and Neck Surgery, Adana, Turkey
| | - Seren Gülşen Gürgen
- Celal Bayar University, Department of Histology and Embriology, Manisa, Turkey
| | - Talih Özdaş
- Health Science University Adana City Hospital, Department of Otorhinolaryngology-Head and Neck Surgery, Adana, Turkey
| | - Orhan Görgülü
- Health Science University Adana City Hospital, Department of Otorhinolaryngology-Head and Neck Surgery, Adana, Turkey
| | - Figen Çiçek
- Çukurova University, Department of Biophysics, Adana, Turkey
| | - İsmail Günay
- Çukurova University, Department of Biophysics, Adana, Turkey
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Zhou R, Xu T, Liu X, Chen Y, Kong D, Tian H, Yue M, Huang D, Zeng J. Activation of spinal dorsal horn P2Y 13 receptors can promote the expression of IL-1β and IL-6 in rats with diabetic neuropathic pain. J Pain Res 2018; 11:615-628. [PMID: 29628771 PMCID: PMC5877493 DOI: 10.2147/jpr.s154437] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Objective The dorsal horn P2Y13 receptor is involved in the development of pain behavior induced by peripheral nerve injury. It is unclear whether the expression of proinflammatory cytokines interleukin (IL)-1β and IL-6 at the spinal dorsal horn are influenced after the activation of P2Y13 receptor in rats with diabetic neuropathic pain (DNP). Methods A rat model of type 1 DNP was induced by intraperitoneal injection of streptozotocin (STZ). We examined the expression of P2Y13 receptor, Iba-1, IL-1β, IL-6, JAK2, STAT3, pTyr1336, and pTyr1472 NR2B in rat spinal dorsal horn. Results Compared with normal rats, STZ-diabetic rats displayed obvious mechanical allodynia and the increased expression of P2Y13 receptor, Iba-1, IL-1β, and IL-6 in the dorsal spinal cord that was continued for 6 weeks in DNP rats. The data obtained indicated that, in DNP rats, administration of MRS2211 significantly attenuated mechanical allodynia. Compared with DNP rats, after MRS2211 treatment, expression of the P2Y13 receptor, Iba-1, IL-1β, and IL-6 were reduced 4 weeks after the STZ injection. However, MRS2211 treatment did not attenuate the expression of the P2Y13 receptor, Iba-1, IL-1β, and IL-6 at 6 weeks after the STZ injection. MRS2211 suppressed JAK2 and STAT3 expression in the early stage, but not in the later stage. Moreover, pTyr1336 NR2B was significantly decreased, whereas pTyr1472 NR2B was unaffected in the dorsal spinal cord of MRS2211-treated DNP rats. Conclusion Intrathecal MRS2211 produces an anti-nociceptive effect in early-stage DNP. A possible mechanism involved in MRS2211-induced analgesia is that blocking the P2Y13 receptor downregulates levels of IL-1β and IL-6, which subsequently inhibit the activation of the JAK2/STAT3 signaling pathway. Furthermore, blocking the activation of the P2Y13 receptor can decrease NR2B-containing NMDAR phosphorylation in dorsal spinal cord neurons, thereby attenuating central sensitization in STZ-induced DNP rats.
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Affiliation(s)
- Rui Zhou
- Department of Physiology, Zunyi Medical College, Zunyi, People's Republic of China
| | - Tao Xu
- Department of Physiology, Zunyi Medical College, Zunyi, People's Republic of China
| | - XiaoHong Liu
- Department of Physiology, Zunyi Medical College, Zunyi, People's Republic of China
| | - YuanShou Chen
- Department of Physiology, Zunyi Medical College, Zunyi, People's Republic of China
| | - DeYing Kong
- Department of Physiology, Zunyi Medical College, Zunyi, People's Republic of China
| | - Hong Tian
- Department of Physiology, Zunyi Medical College, Zunyi, People's Republic of China
| | - Mingxia Yue
- Department of Physiology, Zunyi Medical College, Zunyi, People's Republic of China
| | - Dujuan Huang
- Department of Physiology, Zunyi Medical College, Zunyi, People's Republic of China
| | - Junwei Zeng
- Department of Physiology, Zunyi Medical College, Zunyi, People's Republic of China
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Zhu K, Lv Y, Cheng Q, Hua J, Zeng Q. Extremely Low Frequency Magnetic Fields Do Not Induce DNA Damage in Human Lens Epithelial Cells In Vitro. Anat Rec (Hoboken) 2016; 299:688-97. [PMID: 27079842 DOI: 10.1002/ar.23312] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Revised: 10/30/2015] [Accepted: 11/26/2015] [Indexed: 11/10/2022]
Abstract
Non-ionizing radiations, e.g., radiofrequency electromagnetic fields, could induce DNA damage and oxidative stress in human lens epithelial cells (LECs) which can be early events in cataractogenesis. Extremely low frequency magnetic fields (ELF MF) as another common form of man-made electromagnetic fields has been considered as suspected human carcinogen by International Agency for Research on Cancer (IARC) and become a focus that people play more and more attentions to. This study aimed to determine whether ELF MF can induce DNA damage in cultured human LECs at a relatively low intensity. Human LECs were exposed or sham-exposed to a 50 Hz ELF MF which produced by a well-designed exposure system at the intensity of 0.4 mT. DNA damage in human LECs was examined by the phosphorylated form of histone variant H2AX (γH2AX) foci formation assay and further explored with western blot, flow cytometry, and alkaline comet assay. Immunofluorescence analysis showed that 0.4 mT ELF MF did not significantly increase γH2AX foci formation in human LECs after 2, 6, 12, 24, or 48 hr exposure. No significant differences had been detected in γH2AX expression level between the ELF MF- and sham-exposure groups, while no obvious chromosomal DNA fragmentation was detected by alkaline comet assay after ELF MF exposure. The results indicate an absence of genotoxicity in ELF MF-exposed human epithelial cells and do not support the hypothesis that environmental ELF MF might be causally led to genomic instability via chromosomal damage response processes. Neither short nor long term continuous exposure to 50 Hz ELF MF at 0.4 mT could induce DNA damage in human lens epithelial cells in vitro.
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Affiliation(s)
- Kan Zhu
- Bioelectromagnetics Laboratory, Zhejiang University School of Medicine, Hangzhou, China
| | - Ye Lv
- Department of environmental and occupational health, Hangzhou Center for Disease Control and Prevention, Hangzhou, China
| | - Qian Cheng
- Bioelectromagnetics Laboratory, Zhejiang University School of Medicine, Hangzhou, China.,Department of health monitoring, Haining Center for Disease Control and Prevention, Haining, China
| | - Jianing Hua
- Bioelectromagnetics Laboratory, Zhejiang University School of Medicine, Hangzhou, China
| | - Qunli Zeng
- Bioelectromagnetics Laboratory, Zhejiang University School of Medicine, Hangzhou, China
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