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Bahmanpour A, Ghoreishian SM, Sepahvandi A. Electromagnetic Modulation of Cell Behavior: Unraveling the Positive Impacts in a Comprehensive Review. Ann Biomed Eng 2024:10.1007/s10439-024-03519-8. [PMID: 38652384 DOI: 10.1007/s10439-024-03519-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/15/2024] [Indexed: 04/25/2024]
Abstract
There are numerous effective procedures for cell signaling, in which humans directly transmit detectable signals to cells to govern their essential behaviors. From a biomedical perspective, the cellular response to the combined influence of electrical and magnetic fields holds significant promise in various domains, such as cancer treatment, targeted drug delivery, gene therapy, and wound healing. Among these modern cell signaling methods, electromagnetic fields (EMFs) play a pivotal role; however, there remains a paucity of knowledge concerning the effects of EMFs across all wavelengths. It's worth noting that most wavelengths are incompatible with human cells, and as such, this study excludes them from consideration. In this review, we aim to comprehensively explore the most effective and current EMFs, along with their therapeutic impacts on various cell types. Specifically, we delve into the influence of alternating electromagnetic fields (AEMFs) on diverse cell behaviors, encompassing proliferation, differentiation, biomineralization, cell death, and cell migration. Our findings underscore the substantial potential of these pivotal cellular behaviors in advancing the treatment of numerous diseases. Moreover, AEMFs wield a significant role in the realms of biomaterials and tissue engineering, given their capacity to decisively influence biomaterials, facilitate non-invasive procedures, ensure biocompatibility, and exhibit substantial efficacy. It is worth mentioning that AEMFs often serve as a last-resort treatment option for various diseases. Much about electromagnetic fields remains a mystery to the scientific community, and we have yet to unravel the precise mechanisms through which wavelengths control cellular fate. Consequently, our understanding and knowledge in this domain predominantly stem from repeated experiments yielding similar effects. In the ensuing sections of this article, we delve deeper into our extended experiments and research.
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Sá MGRS, Queiroz-Junior CM, Souza PEAD, Diniz IMA, Oliveira MCM, Grossmann SDMC, Souto GR. Effect of photobiomodulation on inflammatory cytokines produced by HaCaT keratinocytes. J Oral Biol Craniofac Res 2024; 14:79-85. [PMID: 38282697 PMCID: PMC10819743 DOI: 10.1016/j.jobcr.2023.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/25/2023] [Accepted: 12/28/2023] [Indexed: 01/30/2024] Open
Abstract
Objective to evaluate the effects of the red and near-infrared wavelength lasers in isolated and simultaneous way on the modulation of inflammatory cytokines produced by human keratinocytes (HaCaT) challenged by cytokines of human monocytes stimulated by lipopolysaccharide from Escherichia coli. Design HaCaT cells was previously exposed to the laser with wavelengths red (660 nm), near-infrared (808 nm). Then, HaCat cells were stimulated with the supernatant of lipopolysaccharide-challenged peripheral blood cells. The cytokines expressed by HaCat cells were measured using multiplex CBA assay. Results HaCaT cells increased the production of inflammatory cytokines when stimulated with infrared laser compared to the control group (IFN-α2, IFN-γ, TNF-α, MCP-1, IL-6, IL-8, IL-10, IL -12p70, IL -17A, IL-23, IL-33), the red laser group (IFN-γ and IL-23) and the group of two lasers used simultaneously (IFN-α2, IFN-γ, IL-6 and IL-8, IL-17A, IL-18 and IL-23) (p < 0.05). The red laser also stimulated an increase in the expression of IFN-α2 by HaCaT cells in relation to the control group (p < 0.05). Conclusion Infrared laser, with an energy density of 5 J/cm2, appear to be able to modulate inflammatory cytokines produced by HaCaT cells challenged by human monocyte cytokines.
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Affiliation(s)
- Maria Gabriela Rolim Silveira Sá
- Postgraduate Program in Dentistry, Department of Dentistry, Pontifical Catholic University of Minas Gerais, Belo Horizonte, Brazil
- Laboratório Avançado em Saúde e Estudos Regenerativos - LASER | Biotecnologias
| | - Celso Martins Queiroz-Junior
- Drug Research and Development Center, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Paulo Eduardo Alencar de Souza
- Postgraduate Program in Dentistry, Department of Dentistry, Pontifical Catholic University of Minas Gerais, Belo Horizonte, Brazil
- Laboratório Avançado em Saúde e Estudos Regenerativos - LASER | Biotecnologias
| | - Ivana Márcia Alves Diniz
- Laboratório Avançado em Saúde e Estudos Regenerativos - LASER | Biotecnologias
- School of Dentistry, Department of Restorative Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Maria Clara Moreira Oliveira
- Postgraduate Program in Dentistry, Department of Dentistry, Pontifical Catholic University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Giovanna Ribeiro Souto
- Postgraduate Program in Dentistry, Department of Dentistry, Pontifical Catholic University of Minas Gerais, Belo Horizonte, Brazil
- Laboratório Avançado em Saúde e Estudos Regenerativos - LASER | Biotecnologias
- Drug Research and Development Center, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
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Al-Quisi AF, Jamil FA, Abdulhadi BN, Muhsen SJ. The reliability of using light therapy compared with LASER in pain reduction of temporomandibular disorders: a randomized controlled trial. BMC Oral Health 2023; 23:91. [PMID: 36782179 PMCID: PMC9924200 DOI: 10.1186/s12903-023-02784-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 02/01/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND Temporomandibular Disorders (TMD) refer to a group of symptoms where pain is the most leading cause to demand a treatment by the patient. Light therapies are of great importance at current times due to its biosafety and non-invasive quality when used for the management of TMD symptoms. This study aimed to evaluate the efficacy of red LED light with low-level LASER in treating TMD patients. MATERIALS AND METHODS A double-blind randomized clinical study was conducted and included 60 patients along 3 groups (20 for each group) presented with myofascial pain related to TMD. Patients were randomly divided into 3 groups. Group A were managed by applying the LED light device into the trigger points without switching the device on. A red LED light was given to group B for 5 min at the tender muscles. Group C were treated by using low-level LASER therapy for 30 s. Patients were evaluated for any improvements regarding the pain score, presence of trigger points, and trismus along 4 visits (1 week interval between each visit). Any side effects related to the 2 devices were also assessed. RESULTS Both group B and C patients showed a statistically significant improvement in the pain value (P < 0.05) at the 3rd and 4th visits when compared to group A. Regarding tenderness, there was a reduction in the number of trigger points in both study groups; however, the results were insignificant in group B. Statistics showed insignificant differences between group B & C patients regarding pain and number of trigger points at all visits (P > 0.05). CONCLUSION Both LED light and LASER therapies could effectively relieve pain associated with myogenic TMD as there were no important differences between their outcomes. However, the biosafety and lower cost of the LED light device compared to the LASER should also be considered. Trial Registration This clinical trial was prospectively registered (TCTR ID: TCTR20190507002) on 07/05/2019. URL: http://www.thaiclinicaltrials.org/show/TCTR20190507002.
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Affiliation(s)
- Ahmed Fadhel Al-Quisi
- grid.411498.10000 0001 2108 8169Department of Oral and Maxillofacial Surgery, Dental Teaching Hospital, College of Dentistry, University of Baghdad, P.O. Box 1417, Bab-Al Moadham, Baghdad, Iraq
| | - Firas A. Jamil
- grid.411498.10000 0001 2108 8169Department of Oral and Maxillofacial Surgery, Dental Teaching Hospital, College of Dentistry, University of Baghdad, P.O. Box 1417, Bab-Al Moadham, Baghdad, Iraq
| | - Baseem Natheer Abdulhadi
- grid.444971.b0000 0004 6023 831XDepartment of Surgery (ENT), College of Medicine, Al-Iraqia University, Baghdad, Iraq
| | - Salah Jassim Muhsen
- grid.411498.10000 0001 2108 8169Department of Oral and Maxillofacial Surgery, Dental Teaching Hospital, College of Dentistry, University of Baghdad, P.O. Box 1417, Bab-Al Moadham, Baghdad, Iraq
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Ryu JH, Park J, Kim JW, Shin YI, Lee SD, Oh Y, Kang SW. Exploring the Effects of 630 nm Wavelength of Light-Emitting Diode Irradiation on the Proliferation and Migration Ability of Human Biceps Tendon Fibroblast Cells. Clin Orthop Surg 2023; 15:166-174. [PMID: 36779000 PMCID: PMC9880516 DOI: 10.4055/cios22132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/24/2022] [Accepted: 05/24/2022] [Indexed: 11/06/2022] Open
Abstract
Background Light-emitting diode (LED)-based photobiomodulation is used as an inducer of cell regeneration. Although numerous in vitro and in vivo orthopedic studies have been conducted, the ideal LED wavelength range for tendon healing has not yet been determined. This study, thus, focused on the effects of LED of a 630 nm wavelength on the cell viability, proliferation, and migration of human biceps tendon fibroblast cells. Methods Human tendon fibroblast cell culture was performed using the biceps tendon of patients who had undergone biceps tenodesis. Human biceps tendon fibroblasts from two patients (male, aged 42 and 69 years) were isolated and cultured. The cell type was confirmed by a morphological analysis and using tendon and fibroblast specific markers. They were then split into three groups, with each receiving a different irradiation treatment: no LED treatment (control), 630 nm LED, and 630 nm + 880 nm LED for 20 minutes each. After the LED treatment, cell viability, proliferation, and migration assays were performed, and the results were compared between the groups. Results Twenty-four hours after LED treatment, cell viability and proliferation were significantly increased in the 630 nm LED and 630 nm + 880 nm LED treatment groups compared to that in the control group (p < 0.05). Under the same conditions, compared with the control group, the 630 nm LED alone treatment group showed a 3.06 ± 0.21 times higher cell migration rate (p < 0.05), and the 630 nm + 880 nm LED combination treatment group showed a 2.88 ± 0.20 times higher cell migration rate (p < 0.05) in three-dimensional migration assay. Conclusions In human tendon fibroblast cells, 20 minutes of LED treatment at 630 nm and 630 nm + 880 nm exhibited significant effects on cell proliferation and migration. Our findings suggest the potential of LED therapy as an adjuvant treatment for tendon healing, and hence, further research is warranted to standardize the various parameters to further develop and establish this as a reliable treatment regimen.
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Affiliation(s)
- Ji Hyeon Ryu
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Jisu Park
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Ji Won Kim
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Yong-Il Shin
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, Yangsan, Korea
| | - Sang Don Lee
- Department of Urology, Pusan National University School of Medicine, Yangsan, Korea
| | - Youngkwang Oh
- Department of Orthopedic Surgery, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Suk-Woong Kang
- Department of Orthopedic Surgery, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
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Sertaje MRF, Gonçalves MLL, Gomes AO, Bruno LH, Fossati AL, Viarengo NO, Santos EM, Sobral APT, Mesquita-Ferrari RA, Fernandes KPS, Horliana ACRT, Motta LJ, Bussadori SK. Vascular photobiomodulation in the treatment of children with temporomandibular disorders: Study protocol for a randomized, controlled, blind, clinical trial. Medicine (Baltimore) 2022; 101:e31228. [PMID: 36281107 PMCID: PMC9592260 DOI: 10.1097/md.0000000000031228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND This study aims to verify if the use of intravascular laser irradiation of blood (ILIB) influences the reduction of pain and increases the range of motion in opening and closing of the mouth in children and adolescents with temporomandibular disorders (TMD). METHODS This will be a blind, randomized, and controlled clinical trial, which will be carried out on children between 6 and 12 years of age who enter the Catholic University of Uruguay, Faculty of Health Sciences, Postgraduate School, for treatment. To be included, children must present temporomandibular disorders, based on the diagnostic criteria will be the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD). Forty-five participants will be randomized to three groups: Group 1-ILIB with 2 sessions of 20 minutes for 12 weeks (n = 15); Group 2-Placebo laser application with 2 sessions of 20 minutes for 12 weeks (n = 15); Group 3-Control with no treatment (n = 15). Irradiation will be performed by continuous and direct transcutaneous application to the radial artery, by means of a bracelet that inserts the laser beam. The laser to be used is infrared, power 100 mW ± 20%, wavelength 808 nm ± 10 nm, continuous application. RDC/TMD and pain evaluated through a visual analog scale will be the outcome measures. DISCUSSION Due to the low level of evidence, new studies are needed on the effect of ILIB in children with TMD.
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Affiliation(s)
- María Roxana Ferreira Sertaje
- Universidad Católica del Uruguay (UCU), Montevideo, Uruguay
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil
| | - Marcela Leticia Leal Gonçalves
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil
- Postgraduation Program in Health and Environment, Universidade Metropolitana de Santos, Santos, SP, Brazil
| | - Andréa Oliver Gomes
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil
| | - Laura Hermida Bruno
- Universidad Católica del Uruguay (UCU), Montevideo, Uruguay
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil
| | - Ana Laura Fossati
- Universidad Católica del Uruguay (UCU), Montevideo, Uruguay
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil
| | - Natalia Osorio Viarengo
- Universidad Católica del Uruguay (UCU), Montevideo, Uruguay
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil
| | - Elaine Marcilio Santos
- Postgraduation Program in Health and Environment, Universidade Metropolitana de Santos, Santos, SP, Brazil
| | - Ana Paula Taboada Sobral
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil
- Postgraduation Program in Health and Environment, Universidade Metropolitana de Santos, Santos, SP, Brazil
| | | | | | | | - Lara Jansiski Motta
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil
| | - Sandra Kalil Bussadori
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil
- *Correspondence: Sandra Kalil Busssadori, Postgraduate Program on Biophotonics Applied to Health Sciences, Nove de Julho University, Vergueiro Street, 235/249 – Liberdade, ZIP 01504-001, São Paulo, SP, Brazil (e-mail address: )
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de Sousa DFM, Malavazzi TCDS, Deana AM, Horliana ACRT, Fernandes KPS, Bussadori SK, Mesquita-Ferrari RA. Simultaneous red and infrared light-emitting diodes reduced pain in individuals with temporomandibular disorder: a randomized, controlled, double-blind, clinical trial. Lasers Med Sci 2022; 37:3423-3431. [PMID: 35751005 DOI: 10.1007/s10103-022-03600-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 06/19/2022] [Indexed: 12/22/2022]
Abstract
The aim of the present study was to evaluate the effects of photobiomodulation (PBM) with the simultaneous use of red and infrared LEDs on pain and mandibular range of motion in individuals with temporomandibular disorder (TMD). Eighteen participants were randomly allocated to an LED group or control group. The device had 18 red LEDs (660 nm) and 18 infrared LEDs (850 nm), with a total power irradiated of 126 mW and 75.6 J per point. The device was placed in the regions of the temporomandibular joint (TMJ) and masticatory muscles once per day three times per week for 2 weeks. Pain intensity was measured using the visual analog scale (VAS). Mandibular range of motion was determined using digital calipers and considering different conditions (unassisted opening without pain, maximum opening with and without assistance, right and left lateral movements, and protrusion). Evaluations were performed before treatment, immediately after the first LED irradiation session and at the end of six sessions. A significant reduction in pain intensity was found in the LED group at the end of treatment compared to the control group (p < 0.001) as well as in the comparison between the pretreatment and end of treatment evaluations (p < 0.001). Regarding mandibular movements, no statistically significant differences between the LED group and control group were found at the end of treatment for any of the conditions analyzed or in the comparison between the beginning and end of treatment with LED. Photobiomodulation using a cluster with red and infrared LEDs induced a reduction in pain in individuals with temporomandibular disorder but did not alter mandibular range of motion in these individuals. Trial registration number: NCT03696706; retrospectively registered (ClinicalTrials.gov).
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Affiliation(s)
- Dowglas Fernando Magalhães de Sousa
- Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), 235/249 Vergueiro Street, São Paulo, SP, 01525-000, Brazil
| | | | - Alessandro Melo Deana
- Postgraduate Program in Biophotonics Applied to the Health Sciences, UNINOVE, São Paulo, SP, Brazil
| | | | | | - Sandra Kalil Bussadori
- Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), 235/249 Vergueiro Street, São Paulo, SP, 01525-000, Brazil.,Postgraduate Program in Biophotonics Applied to the Health Sciences, UNINOVE, São Paulo, SP, Brazil
| | - Raquel Agnelli Mesquita-Ferrari
- Postgraduate Program in Rehabilitation Sciences, Universidade Nove de Julho (UNINOVE), 235/249 Vergueiro Street, São Paulo, SP, 01525-000, Brazil. .,Postgraduate Program in Biophotonics Applied to the Health Sciences, UNINOVE, São Paulo, SP, Brazil.
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Blue-light treatment reduces spontaneous and evoked pain in a human experimental pain model. Pain Rep 2021; 6:e968. [PMID: 34901678 PMCID: PMC8660004 DOI: 10.1097/pr9.0000000000000968] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 08/23/2021] [Accepted: 09/11/2021] [Indexed: 12/12/2022] Open
Abstract
Supplemental Digital Content is Available in the Text. Blue light reduces pain and shows antihyperalgesic effects in a human experimental pain model. Therefore, blue light may be a novel therapeutic approach for pain in multiple conditions. Introduction: Chronic pain is a frequent severe disease and often associated with anxiety, depression, insomnia, disability, and reduced quality of life. This maladaptive condition is further characterized by sensory loss, hyperalgesia, and allodynia. Blue light has been hypothesized to modulate sensory neurons and thereby influence nociception. Objectives: Here, we compared the effects of blue light vs red light and thermal control on pain sensation in a human experimental pain model. Methods: Pain, hyperalgesia, and allodynia were induced in 30 healthy volunteers through high-density transcutaneous electrical stimulation. Subsequently, blue light, red light, or thermal control treatment was applied in a cross-over design. The nonvisual effects of the respective light treatments were examined using a well-established quantitative sensory testing protocol. Somatosensory parameters as well as pain intensity and quality were scored. Results: Blue light substantially reduced spontaneous pain as assessed by numeric rating scale pain scoring. Similarly, pain quality was significantly altered as assessed by the German counterpart of the McGill Pain Questionnaire. Furthermore, blue light showed antihyperalgesic, antiallodynic, and antihypesthesic effects in contrast to red light or thermal control treatment. Conclusion: Blue-light phototherapy ameliorates pain intensity and quality in a human experimental pain model and reveals antihyperalgesic, antiallodynic, and antihypesthesic effects. Therefore, blue-light phototherapy may be a novel approach to treat pain in multiple conditions.
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Baracho VDS, Chaves MEDA, Huebner R, Oliveira MX, Ferreira PHDC, Lucas TC. Phototherapy (cluster multi-diode 630 nm and 940 nm) on the healing of pressure injury: A pilot study. JOURNAL OF VASCULAR NURSING 2021; 39:67-75. [PMID: 34507703 DOI: 10.1016/j.jvn.2021.06.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 05/17/2021] [Accepted: 06/20/2021] [Indexed: 02/03/2023]
Abstract
The therapeutic benefits of LED in wound care have been reported since the 1990s. Nevertheless, studies directly related to the effects of LED phototherapy on the venous and arterial circulation and the healing process of pressure injuries are scarce in literature. Thus, the aim of this study was to evaluate the efficacy of a LED phototherapy prototype in participants with pressure injuries. In this pilot study 15 participants were randomized into three therapeutic groups. The experimental groups received applications of 630 and 940 nm LED three times a week for 8 weeks, with a dose of 6 J/cm2 in Group I. In group II, a dose of 8 J/cm2 in addition to the standard treatment. Group III (control group) received only daily standard treatment which consisted of cleaning the lesioned area with physiological solution, followed by application of an alginate hydrogel dressing over a period of 8 weeks. Pressure injuries were photographed and the area was measured by the Quantikov® image analyzer software. There was no statistically significant difference (p > 0.05) between the three groups when assessing the initial lesion area. At the end of 2 months, the median and interquartile ranges of the injuries were 5.90 (0.79-9.5) cm2 for group I, 0.54 (0.47-1.16) cm2 for group II and 26.76 (17.25-41.05) for group III. There was a statistically significant difference between treatment types (I x III and II x III) for pressure injuries over the 21 sessions. However, there was no significant difference between groups I x II that received different doses of LED phototherapy. The initial hypothesis was supported given that the combination of two wavelengths in the LED phototherapy with different doses may be helpful in accelerating the healing of pressure injuries.
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Affiliation(s)
- Valéria da Silva Baracho
- Department of Nursing from Santa Casa de Caridade de Diamantina/MG, Federal University of the Valleys of Jequitinhonha and Mucuri, Diamantina, Minas Gerais, Brazil
| | - Maria Emília de Abreu Chaves
- Department of Mechanical Engineering, Laboratory of Bioengineering, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Rudolf Huebner
- Department of Mechanical Engineering, Laboratory of Bioengineering, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Murilo Xavier Oliveira
- Department of Physiotherapy, Federal University of the Valleys of Jequitinhonha and Mucuri, Diamantina, Minas Gerais, Brazil
| | - Paulo Henrique da Cruz Ferreira
- Department of Nursing from Santa Casa de Caridade de Diamantina/MG, Federal University of the Valleys of Jequitinhonha and Mucuri, Diamantina, Minas Gerais, Brazil
| | - Thabata Coaglio Lucas
- Department of Nursing, Federal University of the Valleys of Jequitinhonha and Mucuri, Diamantina, Minas Gerais, Brazil. Laboratory of Bioengineering, Federal University of Minas Gerais, Belo Horizonte,Minas Gerais, Brazil.
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The use of LED therapy to treat synovial joints disorders: scoping review. Lasers Med Sci 2021; 37:701-721. [PMID: 34258669 DOI: 10.1007/s10103-021-03372-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 07/05/2021] [Indexed: 10/20/2022]
Abstract
The aim of this scoping review was to assess the extent of the literature on the use of LED therapy to treat synovial joint disorders. The JBI methodology for scoping reviews was followed. The databases used were PUBMED, EMBASE, Scopus, Web of Science, LILACS, PEDro, Cochrane Database, Google Scholar and ProQuest. To be included, studies should have used LED as therapy, and include at least one measure related to the structures of any synovial joint. The search strategy included all keywords and indexed terms identified in the articles. Studies in any language and in any year, whether published or not, were included. The analysis of the studies was carried out by two independent reviewers. Data were extracted from articles using a data extraction tool developed by the reviewers. After carrying out the definitive search and selection, 47 publications were included: 15 clinical trials, 8 clinical protocols, 12 animal studies, 4 in vitro studies and 8 reviews on the topic. Studies have shown great variability from the device and number of diodes used, to the parameters and dosimetry chosen. Some positive effects were observed: on cell proliferation (in vitro); on anti-inflammatory biomarkers (murine models) and on pain scale (clinical trials - TMD). Although, the cause of non-significant results in clinical trials was rarely discussed: depth of penetration, dosimetry, follow-up time? Thus, future studies should focus on answering more elementary aspects about the LED effect when used alone in different synovial joints.
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Role of Photobiomodulation Therapy in Modulating Oxidative Stress in Temporomandibular Disorders. A Systematic Review and Meta-Analysis of Human Randomised Controlled Trials. Antioxidants (Basel) 2021; 10:antiox10071028. [PMID: 34202292 PMCID: PMC8300797 DOI: 10.3390/antiox10071028] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/14/2021] [Accepted: 06/22/2021] [Indexed: 02/08/2023] Open
Abstract
This systematic review and meta-analysis (PROSPERO registration; ref CRD 42020198921) aimed to govern photobiomodulation therapy (PBMT) efficacy in temporomandibular disorder (TMD). PRISMA guidelines and Cochrane Collaboration recommendations were followed. Differences in pain reduction assessment by qualitative measurement with visual analogue scale pain (VAS), pressure threshold (PPT) and maximum mouth opening (MMO) were calculated with 95% confidence intervals and pooled in a random effects model with a subgroup analysis, evaluating the role of follow-up duration. Heterogeneity was analysed using Q and I2 tests. Publication bias was assessed by visual examination of funnel plot symmetry. Qualitative analysis revealed 46% of the 44 included studies showed a high risk of bias. Meta-analysis on 32 out of 44 studies revealed statistically significant intergroup differences (SSID) for VAS (SMD = -0.55; 95% CI = -0.82 to -0.27; Z = 3.90 (p < 0.001)), PPT (SMD = -0.45; 95% CI = -0.89 to 0.00; Z = 1.97 (p = 0.05)) and MMO (SMD = -0.45; 95% CI = -0.89 to 0.00; Z = 1.97 (p = 0.05)), favouring PBMT compared to control treatment strategies. Sensitivity analysis revealed SSID (SMD = -0.53; 95% CI = -0.73 to -0.32; Z = 5.02 (p < 0.0001)) with low heterogeneity (Τ2 = 0.02; χ2 = 16.03 (p = 0.31); I2 = 13%). Hence, this review, for first time, proposed suggested recommendations for PBMT protocols and methodology for future extensive TMD research.
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Tsuchiya T, Hasegawa N, Yugawa M, Sasaki A, Suda N, Adachi K. Different Therapeutic Effects of CO 2 and Diode Laser Irradiation on Tooth Movement-Related Pain. Front Neurol 2020; 11:481. [PMID: 32582010 PMCID: PMC7291923 DOI: 10.3389/fneur.2020.00481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 05/04/2020] [Indexed: 12/14/2022] Open
Abstract
Although orthodontic treatment is common, orthodontic force often induced pain. Low-level laser therapy (LLLT) has been investigated to improve therapeutic comfort. In dentistry, LLLT is mainly applied using two types of lasers, CO2 and diode lasers, whose biological actions are thought to be associated with wavelength (CO2: 10,600 nm; diode: 808 nm). The analgesic effect of LLLT on orthodontic treatment-related pain is widely reported but inconsistent. This study aimed to (1) determine whether irradiation with a CO2 or diode laser attenuates orthodontic treatment-related pain using the jaw-opening reflex model, (2) elucidate the optimal irradiation protocol for both lasers to obtain the maximal analgesic effect, (3) evaluate the effects of laser irradiation on other biological features [e.g., tooth movement, glial fibrillary acidic protein (GFAP) expression, and temperature alterations] and (4) investigate the mechanism underlying the analgesic effect of laser irradiation. In this animal model, orthodontic treatment-induced pain manifested as a significantly reduced the threshold for inducing the jaw-opening reflex on the orthodontically treated side compared with the contralateral side. GFAP expression in the bilateral trigeminal ganglia (TGs) was significantly increased by the application of orthodontic force. CO2 laser irradiation of the orthodontically treated region significantly increased the threshold for inducing the jaw-opening reflex and the peripheral temperature. Similar reductions in jaw-opening reflex excitability were induced by surface anesthesia and thermal stimulation but not, the diode laser. Neither CO2 nor diode laser irradiation altered GFAP expression in the TGs. Infiltration anesthesia also significantly increased the threshold for inducing the jaw-opening reflex on each anesthetized side. Irradiation (30 s) by either laser immediately after orthodontic force application (preirradiation) significantly decreased jaw-opening reflex excitability and GFAP expression in the bilateral TGs the next day. However, thermal stimulation immediately after orthodontic force application failed to alter jaw-opening reflex excitability the next day. Laser irradiation did not alter tooth movement; however, an optimized irradiation protocol for aiding tooth movement is suggested. In conclusion, both CO2 and diode lasers are able to prevent orthodontic treatment-related pain. Furthermore, the involvement of temperature alterations and surface anesthesia in the analgesic effect induced by CO2 laser irradiation is suggested.
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Affiliation(s)
- Takako Tsuchiya
- Division of Orthodontics, Meikai University School of Dentistry, Sakado, Japan
| | - Naoya Hasegawa
- Division of Orthodontics, Meikai University School of Dentistry, Sakado, Japan
| | - Misato Yugawa
- Division of Orthodontics, Meikai University School of Dentistry, Sakado, Japan
| | - Au Sasaki
- Division of Orthodontics, Meikai University School of Dentistry, Sakado, Japan
| | - Naoto Suda
- Division of Orthodontics, Meikai University School of Dentistry, Sakado, Japan
| | - Kazunori Adachi
- Division of Pharmacology, Meikai University School of Dentistry, Sakado, Japan
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