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Oliveira SV, Batista JVF, Gutierres GG, Silva NP, Lino-Dos-Santos-Franco A, Rodrigues MFSD, Cecatto RB. The supportive use of photobiomodulation on salivary glands: a narrative review and meta-analysis. Eur Arch Otorhinolaryngol 2024; 281:2793-2805. [PMID: 38189964 DOI: 10.1007/s00405-023-08425-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/18/2023] [Indexed: 01/09/2024]
Abstract
PURPOSE Radiotherapy is one of the main strategies used in the treatment of cancer patients and it can cause early or late xerostomia and/or hyposalivation. Therapeutic management of xerostomia includes oral hygiene, sialogenic agents among others. METHODS This study reviews the use of extra-oral salivary glands photobiomodulation in treating xerostomia and/or hyposalivation after radiotherapy and performs a meta-analysis of this data. RESULTS After a broad search of the literature, eight clinical studies were selected. DISCUSSION In a safe way, the studies found that extra-oral stimulation of the salivary glands has benefits in the hyposalivation and changes in salivary flow resulting from lesions by radiotherapy. A meta-analysis found significant values in pain comparing the pre- and post-treatment moments (MD - 3.02, I2 95%, IC - 5.56; - 0.48) and for stimulated salivary flow at 30 days after the end of radiotherapy (MD 2.90, I2 95%, IC 1.96; 3.84). CONCLUSION The most promising parameters comprise wavelengths between 630 and 830 nm, radiant exposure from 2 to 10 J/cm2, two-to-three times a week, before the radiotherapy damage, and homogeneously in the glands. Therefore, Light-Emitting Diode (LED) stimulation of larger areas than the punctual stimulation of small millimeters of the Low-Level Laser Therapy (LLLT) appears to be promising.
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Affiliation(s)
- Susyane Vieira Oliveira
- Biophotonics-Medicine Post-Graduate Program, Universidade Nove de Julho/UNINOVE, 249 Vergueiro Street, Liberdade, São Paulo, SP, 01504-001, Brazil
| | - João Victor Falcão Batista
- School of Medicine of Universidade Nove de Julho UNINOVE, 249 Vergueiro Street, Liberdade, São Paulo, SP, 01504-001, Brazil
| | - Gabriela Godinho Gutierres
- School of Medicine of Universidade Nove de Julho UNINOVE, 249 Vergueiro Street, Liberdade, São Paulo, SP, 01504-001, Brazil
| | - Nicole Pantojo Silva
- School of Medicine of Universidade Nove de Julho UNINOVE, 249 Vergueiro Street, Liberdade, São Paulo, SP, 01504-001, Brazil
| | - Adriana Lino-Dos-Santos-Franco
- Biophotonics-Medicine Post-Graduate Program, Universidade Nove de Julho/UNINOVE, 249 Vergueiro Street, Liberdade, São Paulo, SP, 01504-001, Brazil
| | | | - Rebeca Boltes Cecatto
- Biophotonics-Medicine Post-Graduate Program, Universidade Nove de Julho/UNINOVE, 249 Vergueiro Street, Liberdade, São Paulo, SP, 01504-001, Brazil.
- School of Medicine of University of Sao Paulo, Instituto de Reabilitação Lucy Montoro HCFMUSP, IMREA Morumbi, R. Jandiatuba, 580 - Vila Andrade, São Paulo, SP, 05716-150, Brazil.
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Uta D, Ishibashi N, Tao S, Sawahata M, Kume T. Photobiomodulation inhibits neuronal firing in the superficial but not deep layer of a rat spinal dorsal horn. Biochem Biophys Res Commun 2024; 710:149873. [PMID: 38583230 DOI: 10.1016/j.bbrc.2024.149873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 03/29/2024] [Indexed: 04/09/2024]
Abstract
Photobiomodulation (PBM) has attracted attention as a treatment for chronic pain. Previous studies have reported that PBM of the sciatic nerve inhibits neuronal firing in the superficial layers (lamina I-II) of the spinal dorsal horn of rats, which is evoked by mechanical stimulation that corresponds to noxious stimuli. However, the effects of PBM on the deep layers (lamina III-IV) of the spinal dorsal horn, which receive inputs from innocuous stimuli, remain poorly understood. In this study, we examined the effect of PBM of the sciatic nerve on firing in the deep layers of the spinal dorsal horn evoked by mechanical stimulation. Before and after PBM, mechanical stimulation was administered to the cutaneous receptive field using 0.6-26.0 g von Frey filaments (vFFs), and vFF-evoked firing in the deep layers of the spinal dorsal horn was recorded. The vFF-evoked firing frequencies were not altered after the PBM for any of the vFFs. The inhibition rate for 26.0 g vFF-evoked firing was approximately 13 % in the deep layers and 70 % in the superficial layers. This suggests that PBM selectively inhibits the transmission of pain information without affecting the sense of touch. PBM has the potential to alleviate pain while preserving the sense of touch.
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Affiliation(s)
- Daisuke Uta
- Department of Applied Pharmacology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan.
| | - Naoya Ishibashi
- Department of Applied Pharmacology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan; Biomedical Engineering Laboratories, Teijin Institute for Bio-Medical Research, Teijin Pharma Ltd., Tokyo, 191-8512, Japan
| | - Shinichi Tao
- Biomedical Engineering Laboratories, Teijin Institute for Bio-Medical Research, Teijin Pharma Ltd., Tokyo, 191-8512, Japan
| | - Masahito Sawahata
- Department of Applied Pharmacology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
| | - Toshiaki Kume
- Department of Applied Pharmacology, Faculty of Pharmaceutical Sciences, University of Toyama, Toyama, 930-0194, Japan
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Sachdev A. Improvement in Central Serous Chorioretinopathy Following Multiwavelength Photobiomodulation Treatment - Case Report. Ophthalmol Ther 2024:10.1007/s40123-024-00963-6. [PMID: 38758517 DOI: 10.1007/s40123-024-00963-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 04/30/2024] [Indexed: 05/18/2024] Open
Abstract
INTRODUCTION Central serous chorioretinopathy (CSCR) is a condition where fluid build-up accumulates underneath the retina, resulting in retinal pigment epithelium (RPE) detachment and vision loss. Irreversible retinal functional and anatomical changes are possible consequences. Research into novel strategies to aid in recovery are of interest. Photobiomodulation (PBM) uses light wavelengths to improve cellular function and shows positive effects in several conditions including those with edema. METHODS This prospective case report details a 39-year-old woman with CSCR. Multiwavelength PBM treatment was initiated with the Valeda® Light Delivery System. A series of treatment included nine sessions delivered over 3-5 weeks. Follow-up treatments were conducted. Optical coherence tomography (OCT) imaging and best-corrected visual acuity (BCVA) measures were taken. The patient has been followed for approximately 1 year. RESULTS The patient presented with blurred vision and a BCVA score of 65 letters in the left eye. After 3 weeks of observation, the patient's vision had further declined two lines on the Early Treatment Diabetic Retinopathy Study (ETDRS) chart to 55 letters. Fluorescein angiography was performed, confirming CSCR diagnosis, and PBM was initiated. PBM treatment improved BCVA and fluid build-up in the RPE within 1 week of treatment (three treatment sessions). Following the full series of treatment (nine PBM treatment sessions), fluid was completely resolved and BCVA scored at 80 letters. The patient had a repeat PBM treatment series ~ 6 months later and has shown stable vision and no fluid present on OCT scan. The patient was seen again ~ 1 year later with continued stable vision and no fluid detection. CONCLUSIONS PBM is a non-invasive treatment option that may provide benefit in CSCR to resolve fluid build-up, macular change, and vision loss. Research into PBM as an immediate treatment option for CSCR, especially those with chronic presentations or those posed to have irreversible damage, is warranted to confirm effectiveness.
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Affiliation(s)
- Arun Sachdev
- Macclesfield District General Hospital, Macclesfield, England.
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Amaroli A, Clemente Vargas MR, Pasquale C, Raffetto M, Ravera S. Photobiomodulation on isolated mitochondria at 810 nm: first results on the efficiency of the energy conversion process. Sci Rep 2024; 14:11060. [PMID: 38744931 PMCID: PMC11094005 DOI: 10.1038/s41598-024-61740-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/09/2024] [Indexed: 05/16/2024] Open
Abstract
In this paper the photobiomodulation on isolated mitochondria of bovine liver is studied as a thermodynamic process of conversion of energy. This analysis is conducted by considering a particular set-up for the photobiomodulation experiments of interest. It allows, in particular, the computation of the electromagnetic field and the related energetic quantities in the stimulated organelles. The measurements of the excess of biochemical power density produced by the illuminated mitochondria are performed at regular time intervals after the experiments. The calculations and the measurements finally allow us to obtain the first results on the efficiency of the process of conversion of electromagnetic energy into excess of biochemical energy released by the isolated organelles.
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Affiliation(s)
- Andrea Amaroli
- Department of Earth, Environment and Life Sciences, University of Genoa, Corso Europa 26, 16132, Genoa, Italy
| | - Mario Rene Clemente Vargas
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Via Opera Pia 11a, 16145, Genoa, Italy
| | - Claudio Pasquale
- Department of Mechanical, Energy, Management and Transport Engineering, University of Genova, Via Opera Pia 15, 16145, Genoa, Italy
| | - Mirco Raffetto
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Via Opera Pia 11a, 16145, Genoa, Italy.
| | - Silvia Ravera
- Department of Experimental Medicine, University of Genoa, Via L. B. Alberti 2, 16132, Genoa, Italy
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Buzza A, Tapas K, Anders J, Jenkins M, Moffitt M. Photobiomodulation for pain relief: Model-based estimates of effective doses of light at the neural target. J Photochem Photobiol B 2024; 256:112929. [PMID: 38759478 DOI: 10.1016/j.jphotobiol.2024.112929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/19/2024] [Accepted: 05/06/2024] [Indexed: 05/19/2024]
Abstract
INTRODUCTION Photobiomodulation (PBM) has been studied since the 1960s as a clinical tool. More recently, PBM has been observed to reduce compound action potential components and hypersensitivities associated with neuropathic pains. However, no definitive description of efficacious light parameters has been determined. Some reasons may be that previous meta-analyses and reviews have focused on emitter output rather than the light at the target tissue and have included data sets that are large but with notable variability (e.g., combining data from various disease etiologies, and data from PBM at various wavelengths). This fact has made it difficult to successfully define the range of effective parameters. METHODS In this study, photon propagation software was used to estimate irradiance at a target nerve using several published data sets chosen for their narrow criteria to minimize variability. Utilizing these estimates, effective and ineffective light irradiances at the nerve of interest for wavelengths of 633 nm or 808-830 nm were examined and estimated. These estimates are focused on the amount of light required to achieve a reduction in pain or a surrogate measure via a hypothesized nerve block mechanism. RESULTS Accounting for irradiance at the target nerve yielded a clear separation of PBM doses that achieved small-fiber nerve block from those that did not. For both the 633 nm group and the 808-830 group, the irradiance separation threshold followed a nonlinear path with respect to PBM application duration, where shorter durations required higher irradiances, and longer durations required lower irradiances. Using the same modeling methods, irradiance was estimated as a function of depth from a transcutaneous source (distance from skin surface) for emitter output power using small or large emitter sizes. CONCLUSION Taken together, the results of this study can be used to estimate effective PBM dosing schemes to achieve small-fiber inhibition for various anatomical scenarios.
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Affiliation(s)
- Andrew Buzza
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA.
| | - Kalista Tapas
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Juanita Anders
- Department of Anatomy, Physiology, and Genetics, Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Michael Jenkins
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA; Department of Pediatrics, Case Western Reserve University, Cleveland, OH, USA
| | - Michael Moffitt
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
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Rossi A, Lagravère-Vich M, Heo G, Major PW, El-Bialy T. An evaluation of root resorption associated with the use of photobiomodulation during orthodontic treatment with clear aligners: a retrospective cohort pilot study. Angle Orthod 2024; 94:294-302. [PMID: 38412960 PMCID: PMC11050451 DOI: 10.2319/081823-567.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 01/01/2024] [Indexed: 02/29/2024] Open
Abstract
OBJECTIVES To evaluate the change in tooth root volume using cone-beam computed tomography (CBCT) in a group of patients treated concurrently with clear aligners and an adjunctive photobiomodulation (PBM) device. MATERIALS AND METHODS This retrospective cohort pilot study included the records of 32 consecutively treated clear aligner patients (23 female, 9 male) from the private practice of one orthodontist. The PBM group (n = 16) used the device once per day for 5 minutes per arch and was compared with a matched control group (n = 16). A semiautomated segmentation technique was used to obtain tooth volume of anterior teeth from CBCT imaging prior to (T0) and during or immediately following (T1) orthodontic treatment with clear aligners. The change in root volume between time points was assessed. RESULTS There was no statistically significant difference between the pre- and posttreatment root volumes of maxillary and mandibular anterior teeth, regardless of which intervention group the patient belonged to (P > .05). There was also no difference in the mean percentage change in root volume between clear aligner patients in this study who were treated with the PBM device compared with a matched control group (P > .05). CONCLUSIONS Clear aligner patients in this study who changed their aligners every 3 to 5 days and used adjunctive photobiomodulation therapy did not experience clinically relevant orthodontically induced external root resorption. Due to the small sample size and measurement error in the root segmentation process, the results should be interpreted with caution.
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Asgari R, Mehran YZ, Weber HM, Weber M, Golestanha SA, Hosseini Kazerouni SM, Panahi F, Mohammadi P, Mansouri K. Management of oxidative stress for cell therapy through combinational approaches of stem cells, antioxidants, and photobiomodulation. Eur J Pharm Sci 2024; 196:106715. [PMID: 38301971 DOI: 10.1016/j.ejps.2024.106715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 01/05/2024] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
Over the recent decades, stem cell-based therapies have been considered as a beneficial approach for the treatment of various diseases. In these types of therapies, the stem cells and their products are used as treating agents. Despite the helpful efficacy of stem cell-based therapies, there may be challenges. Oxidative stress (OS) is one of these challenges that can affect the therapeutic properties of stem cells. Therefore, it seems that employing strategies for the reduction of OS in combination with stem cell therapy can lead to better results of these therapies. Based on the available evidence, antioxidant therapy and photobiomodulation (PBM) are strategies that can regulate the OS in the cells. Antioxidant therapy is a method in which various antioxidants are used in the therapeutic processes. PBM is also the clinical application of light that gained importance in medicine. Antioxidants and PBM can regulate OS by the effect on mitochondria as an important source of OS in the cells. Considering the importance of OS in pathologic pathways and its effect on the treatment outcomes of stem cells, in the present review first the stem cell therapy and effects of OS on this type of therapy are summarized. Then, antioxidant therapy and PBM as approaches for reducing OS with a focus on mitochondrial function are discussed. Also, a novel combination treatment with the hope of achieving better and more stable outcomes in the treatment process of diseases is proposed.
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Affiliation(s)
- Rezvan Asgari
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Yasaman Zandi Mehran
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hans Michael Weber
- International Society of Medical Laser Applications, Lauenfoerde, Germany
| | | | | | | | - Farzad Panahi
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Pantea Mohammadi
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kamran Mansouri
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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Jaswal R, Kumar D, Rezk AI, Kaliannagounder VK, Park CH, Min KH. Nanographene-Au fine-tuning to intensify plasmonic-resonance of polymeric hybrid bionanosystem for synergistic phototherapy and nerve photobiomodulation. Colloids Surf B Biointerfaces 2024; 237:113820. [PMID: 38502975 DOI: 10.1016/j.colsurfb.2024.113820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/07/2024] [Accepted: 02/21/2024] [Indexed: 03/21/2024]
Abstract
Here, we report the multi-photo-bioactivity of the plasmonic-nano graphitic coordinated polycaprolactone-based aligned nanofibrous scaffolds-based bionanosystem for photothermal breast and colon cancer therapies and peripheral nerve photobiomodulation. The size-optimized colloidal reduced graphene oxide (nRGO, 180 nm) nanosheets, for enhanced photothermal impact, were surface-functionalized with gold nanospheres (AuNPs) to prepare the nRGO@AuNP monodispersed nano-composite and then doped 2.0 mg of nRGO@AuNP in biocompatible and biodegradable polymer polycaprolactone (PCL) to fabricate the nRGO@AuNP-PCL (2.0 mg) plasmonic aligned nanofibrous scaffolds. More than 90% of cancer cells, breast cancer (MCF-7) as well as colon cancer (CT-26), ablated after 5 min of low NIR (808 nm) laser power (0.72 W/cm2) illumination with nRGO@AuNP-PCL (2.0 mg) aligned nanofibrous scaffolds. Besides, the nRGO@AuNP-PCL (2.0 mg) provided an extraordinary microenvironment for adhesion, nerve growth, proliferation, and differentiation of PC12 and S42 cells which mimics the natural extracellular matrix. The 2.5-fold increase in neurite length was observed with NIR illumination after 3 days whereas 1.7-fold was found without NIR illumination after 7 days in comparison to PCL (pure). The current findings will be useful to provide a new crucial approach for preparing biocompatible multifunctional composite plasmonic nanofibers as a highly efficient distinct platform for photothermal therapies and promising bioimplants to overcome the loss of sensation after cancer surgery through nerve photobiomodulation.
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Affiliation(s)
- Richa Jaswal
- Division of Mechanical Design Engineering, Jeonbuk National University, Jeonju 54896, South Korea; Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju 54896, South Korea; Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 54896, South Korea; School of Pharmacy, Jeonbuk National University, Jeonju 54896, South Korea
| | - Dinesh Kumar
- Division of Mechanical Design Engineering, Jeonbuk National University, Jeonju 54896, South Korea; Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju 54896, South Korea; Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 54896, South Korea.
| | - Abdelrahman I Rezk
- Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju 54896, South Korea; Department of Physiology, Jeonbuk National University Medical School, Jeonju-si 54907, South Korea
| | | | - Chan Hee Park
- Division of Mechanical Design Engineering, Jeonbuk National University, Jeonju 54896, South Korea; Department of Bionanotechnology and Bioconvergence Engineering, Graduate School, Jeonbuk National University, Jeonju 54896, South Korea.
| | - Kyung Hyun Min
- School of Pharmacy, Jeonbuk National University, Jeonju 54896, South Korea; Institute of New Drug Development, Jeonbuk National University, Jeonju 54896, South Korea.
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Lu P, Peng J, Liu J, Chen L. The role of photobiomodulation in accelerating bone repair. Prog Biophys Mol Biol 2024; 188:55-67. [PMID: 38493961 DOI: 10.1016/j.pbiomolbio.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 03/03/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024]
Abstract
Bone repair is faced with obstacles such as slow repair rates and limited bone regeneration capacity. Delayed healing even nonunion could occur in bone defects, influencing the life quality of patients severely. Photobiomodulation (PBM) utilizes different light sources to derive beneficial therapeutic effects with the advantage of being non-invasive and painless, providing a promising strategy for accelerating bone repair. In this review, we summarize the parameters, mechanisms, and effects of PBM regulating bone repair, and further conclude the current clinical application of PBM devices in bone repair. The wavelength of 635-980 nm, the output power of 40-100 mW, and the energy density of less than 100 J/cm2 are the most commonly used parameters. New technologies, including needle systems and biocompatible and implantable optical fibers, offer references to realize an efficient and safe strategy for bone repair. Further research is required to establish the reliability of outcomes from in vivo and in vitro studies and to standardize clinical trial protocols.
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Affiliation(s)
- Ping Lu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Jinfeng Peng
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Jie Liu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China.
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Ahrari F, Shafaee H, Haghpanahi M, Bardideh E. Low-level laser therapy and laser acupuncture therapy for pain relief after initial archwire placement : A randomized clinical trial. J Orofac Orthop 2024:10.1007/s00056-024-00526-1. [PMID: 38683401 DOI: 10.1007/s00056-024-00526-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 01/16/2024] [Indexed: 05/01/2024]
Abstract
OBJECTIVE Pain is among the most unpleasant experience during fixed orthodontic therapy. This study compared the effectiveness of low-level laser therapy (LLLT) and laser acupuncture therapy (LAT) in pain reduction after initial archwire placement. METHODS This randomized, parallel-group, single-blind clinical trial included 60 female patients who required four premolar extractions to relieve crowding. The subjects were randomly designated into four groups of 15. After placement of the initial orthodontic archwire, patients in group 1 took ibuprofen (400 mg), whereas those in group 2 received LLLT (808 nm, 200 mW, 2 J/cm2) on both buccal and lingual sides of the teeth. In group 3 (LAT), the laser (808 nm, 200 mW, 24 J/cm2) was applied bilaterally to acupuncture points (SI 18, ST 6, LI 4, SJ 2, and SJ 5). Subjects in group 4 received placebo laser treatment. Patients were requested to record the intensity of spontaneous pain, pain while biting with anterior teeth, and pain while biting with posterior teeth at different times using a visual analogue scale (VAS). RESULTS The intensity of spontaneous and biting pain increased up to the first or second days following initial archwire placement and diminished to a negligible value by the seventh day. No significant difference was found between the study groups concerning spontaneous and biting pain at any timepoint of investigation (P > 0.05). CONCLUSIONS With the protocols used in the study, low-level laser therapy and laser acupuncture therapy were as effective as ibuprofen and placebo laser treatment for pain reduction in orthodontic patients. TRIAL REGISTRATION IRCT, IRCT20200622047886N1. Registered 2020-06-29; https://www.irct.ir/trial/49121.
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Affiliation(s)
- Farzaneh Ahrari
- Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Vakilabad Blvd Melat Park Square, Mashhad, Iran
| | - Hooman Shafaee
- Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Vakilabad Blvd Melat Park Square, Mashhad, Iran.
| | - Melika Haghpanahi
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Erfan Bardideh
- Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Vakilabad Blvd Melat Park Square, Mashhad, Iran
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Martins DO, Marques DP, Chacur M. Enhancing nerve regeneration in infraorbital nerve injury rat model: effects of vitamin B complex and photobiomodulation. Lasers Med Sci 2024; 39:119. [PMID: 38679671 DOI: 10.1007/s10103-024-04067-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/22/2024] [Indexed: 05/01/2024]
Abstract
Orofacial nerve injuries may result in temporary or long-term loss of sensory function and decreased quality of life in patients. B vitamins are required for DNA synthesis and the repair and maintenance of phospholipids. In particular, vitamins B1, B6, and B12 are essential for neuronal function. Deficiency in vitamin B complex (VBC) has been linked to increased oxidative stress, inflammation and demyelination. Photobiomodulation (PBM) has antioxidant activity and is neuroprotective. In addition, a growing literature attests to the positive effects of PBM on nerve repair. To assess the effect of PBM and VBC on regenerative process we evaluated the expression of brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), myelin basic protein (MBP), laminin and neurofilaments (NFs) using Western blotting to identify regenerative pattern after chronic constriction injury of the infraorbital nerve (CCI IoN) treated by PBM, VBC or its combination. After CCI IoN, the rats were divided into six groups naive, sham, injured (CCI IoN), treated with photobiomodulation (904 nm, 6.23 J/cm2, CCI IoN + PBM), treated with VBC (containing B1, B6 and B12) 5 times, CCI IoN + VBC) and treated with PBM and VBC (CCI IoN + VBC + PBM). The treatments could revert low expression of BDNF, MBP and laminin. Also reverted the higher expression of neurofilaments and enhanced expression of NGF. PBM and VBC could accelerate injured infraorbital nerve repair in rats through reducing the expression of neurofilaments, increasing the expression of BDNF, laminin and MBP and overexpressing NGF. These data support the notion that the use of PBM and VBC may help in the treatment of nerve injuries. This finding has potential clinical applications.
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Affiliation(s)
- Daniel Oliveira Martins
- Division of Neuroscience/Hospital Sírio-Libânes, Street Daher Cutait 69, São Paulo, SP, 01308-060, Brazil.
- Departmento de Anatomia, Laboratory of Functional Neuroanatomy of Pain, Universidade de São Paulo Instituto de Ciências Biomédicas, São Paulo, SP, Brazil.
| | - Daniel Pereira Marques
- Departmento de Anatomia, Laboratory of Functional Neuroanatomy of Pain, Universidade de São Paulo Instituto de Ciências Biomédicas, São Paulo, SP, Brazil
| | - Marucia Chacur
- Departmento de Anatomia, Laboratory of Functional Neuroanatomy of Pain, Universidade de São Paulo Instituto de Ciências Biomédicas, São Paulo, SP, Brazil
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Razzaghi M, Sheibani F, Barati M, Alirezaei T, Razzaghi Z, Hajimoradi M, Najafi F, Hajimoradi B. Evaluation of Photobiomodulation on myocardial function of patients with advanced ischemic cardiomyopathy, A case series. Photodiagnosis Photodyn Ther 2024; 47:104092. [PMID: 38685548 DOI: 10.1016/j.pdpdt.2024.104092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/09/2024] [Accepted: 04/17/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND Heart failure is a growing cardiovascular disease burden with high mortality rates, primarily attributed to myocardial ischemia. Previous studies have shown promising effects of Photobiomodulation in heart failure treatment. In this study, we aimed to investigate the effect of Photobiomodulation on myocardial function of patients with advanced ischemic heart failure. METHOD A non-randomized case series study involving 10 advanced heart failure patients was conducted. Patients received 15 sessions of transcutaneous and intravenous Photobiomodulation therapy using low-level red (658 nm) and infrared lasers (810 nm). All participants were evaluated by six-minute walk tests, dyspnea function classes, and echocardiography. 3 months after the sessions, the mentioned tests were reevaluated RESULT: The study included ten cardiomyopathic patients, 90 % male and the mean age was 63.20±6.01 years. The six-minute walk test change and shortness of breath function class change has 0.852 (p-value=0.006) correlation and the correlation between the Six-minute walk test change and the Systolic ejection fraction rate change, was 0.73 (p-value=0.025). CONCLUSION Based on the results of the study, it can be concluded that interventions in cardiomyopathic patients have shown promising improvements in certain cardiac function parameters. Specifically, the significant enhancement in the six-minute walk test post-intervention (p = 0.013) suggests a positive impact on functional capacity. Although the increase in systolic ejection fraction rate was not statistically significant (p = 0.197), the correlations identified provide valuable insights into the interplay between variables such as shortness of breath function class and the six-minute walk test. These findings underscore the complexity of managing cardiomyopathy and highlight the importance of further research to elucidate the relationships between different clinical parameters and patient outcomes in this population.
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Affiliation(s)
- Mohammadreza Razzaghi
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Sheibani
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Barati
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Toktam Alirezaei
- Cardiovascular department of Shohada Tajrish Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Razzaghi
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Hajimoradi
- Cardiovascular department of Shohada Tajrish Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Behzad Hajimoradi
- Cardiovascular department of Shohada Tajrish Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Alayat MS, Takaroni A, Elsodany AM, AlMatrafi NA, Subahi MS, Battecha KH. Effectiveness of photobiomodulation therapy in the treatment of patients with an ankle sprain: a systematic review and meta-analysis. Lasers Med Sci 2024; 39:116. [PMID: 38668764 DOI: 10.1007/s10103-024-04063-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 04/19/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND Photobiomodulation therapy (PBMT) is widely used in the treatment of patients with musculoskeletal and sports disorders with a lack of significance in patients with sprain ankle. PURPOSE This review investigated the effect of PBMT on pain, oedema, and function in patients with an ankle sprain. METHODS A systematic search of the databases (MEDLINE, PubMed, EBSCO, Web of Science, Wiley Online Library, Science Direct, Physiotherapy Evidence (PEDro), and the Cochrane Databases) was performed from inception to the end of 2023 to identify any clinical study investigating the effect of PBMT on ankle sprain. PBMT parameters and measured outcomes were extracted. The primary measured outcome was pain and function, and oedema were secondary measured outcomes. Methodological quality was assessed using the PEDro scale. The level of evidence was determined by the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system. A random effect meta-analysis with forest plot was used to calculate standardized mean difference (SMD) at a 95% confidence interval and the overall effect size (ES). RESULTS Six studies (598 patients) were included in the review and five studies in the meta-analysis. There were two fair-quality and four good-quality studies, with a moderate level of evidence on pain, and a low level of evidence on oedema and function. The meta-analysis revealed a significant overall effect of PBMT on pain with high ES [SMD - 0.88 (-1.76, -0.00), p = 0.05], with a non-significant effect on oedema and function with a medium ES [SMD - 0.70 (-1.64, 0.24), p = 0.14] on oedema and low ES on function [SMD - 0.22 (-0.69, 0.24), p = 0.35]. Significant heterogeneity was observed in all measured outcomes with high heterogeneity (I2 > 75%) in pain and oedema and moderate heterogeneity in function. CONCLUSION PBMT is quite effective for patients with an ankle sprain. PBMT showed high effect size with a moderate level of evidence on pain intensity. The lack of significant effects of PBMT on function and edema with low level of evidence limit the confidence to the current results and recommend further large high-quality studies with higher PBMT intensity and fluency for standardisation of the irradiation parameters and treatment protocol. REGISTRATION PROSPERO registration number (CRD42021292930).
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Affiliation(s)
- Mohamed Salaheldien Alayat
- Physiotherapy and rehabilitation department, Faculty of Applied Medical science, Umm Al-Qura University, Mecca, Saudi Arabia.
| | - Abdullah Takaroni
- Physiotherapy and rehabilitation department, Faculty of Applied Medical science, Umm Al-Qura University, Mecca, Saudi Arabia
| | | | - Nahla Ahmad AlMatrafi
- Department of Rehabilitation, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Jeddah, Saudi Arabia
| | - Moayad Saleh Subahi
- Physiotherapy and rehabilitation department, Faculty of Applied Medical science, Umm Al-Qura University, Mecca, Saudi Arabia
| | - Kadrya Hosney Battecha
- Physiotherapy and rehabilitation department, Faculty of Applied Medical science, Umm Al-Qura University, Mecca, Saudi Arabia
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Gumede DB, Abrahamse H, Houreld NN. Targeting Wnt/β-catenin signaling and its interplay with TGF-β and Notch signaling pathways for the treatment of chronic wounds. Cell Commun Signal 2024; 22:244. [PMID: 38671406 PMCID: PMC11046856 DOI: 10.1186/s12964-024-01623-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/20/2024] [Indexed: 04/28/2024] Open
Abstract
Wound healing is a tightly regulated process that ensures tissue repair and normal function following injury. It is modulated by activation of pathways such as the transforming growth factor-beta (TGF-β), Notch, and Wnt/β-catenin signaling pathways. Dysregulation of this process causes poor wound healing, which leads to tissue fibrosis and ulcerative wounds. The Wnt/β-catenin pathway is involved in all phases of wound healing, primarily in the proliferative phase for formation of granulation tissue. This review focuses on the role of the Wnt/β-catenin signaling pathway in wound healing, and its transcriptional regulation of target genes. The crosstalk between Wnt/β-catenin, Notch, and the TGF-β signaling pathways, as well as the deregulation of Wnt/β-catenin signaling in chronic wounds are also considered, with a special focus on diabetic ulcers. Lastly, we discuss current and prospective therapies for chronic wounds, with a primary focus on strategies that target the Wnt/β-catenin signaling pathway such as photobiomodulation for healing diabetic ulcers.
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Affiliation(s)
- Dimakatso B Gumede
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa
| | - Nicolette N Houreld
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa.
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Chang AJBA, de Barros Pinto EAF, Silva DR, David AC, de Matos LP, Marcos RL, Silva Junior JA, Zamuner SR. Photobiomodulation in promoting increased Skin Flap Viability: a systematic review of animal studies. Lasers Med Sci 2024; 39:109. [PMID: 38649643 DOI: 10.1007/s10103-024-04055-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 04/11/2024] [Indexed: 04/25/2024]
Abstract
Necrosis is common in skin flap surgeries. Photobiomodulation, a noninvasive and effective technique, holds the potential to enhance microcirculation and neovascularization. As such, it has emerged as a viable approach for mitigating the occurrence of skin flap necrosis. The aim of this systematic review was to examine the scientific literature considering the use of photobiomodulation to increase skin-flap viability. The preferred reporting items for systematic reviews and meta-analyses (PRISMA), was used to conducted systematic literature search in the databases PubMed, SCOPUS, Elsevier and, Scielo on June 2023. Included studies investigated skin-flap necrosis employing PBMT irradiation as a treatment and, at least one quantitative measure of skin-flap necrosis in any animal model. Twenty-five studies were selected from 54 original articles that addressed PBMT with low-level laser (LLL) or light-emitting diode (LED) in agreement with the qualifying requirements. Laser parameters varied markedly across studies. In the selected studies, the low-level laser in the visible red spectrum was the most frequently utilized PBMT, although the LED PBMT showed a similar improvement in skin-flap necrosis. Ninety percent of the studies assessing the outcomes of the effects of PBMT reported smaller areas of necrosis in skin flap. Studies have consistently demonstrated the ability of PBMT to improve skin flap viability in animal models. Evidence suggests that PBMT, through enhancing angiogenesis, vascular density, mast cells, and VEGF, is an effective therapy for decrease necrotic tissue in skin flap surgery.
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Affiliation(s)
- Alexandre Jin Bok Audi Chang
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil
| | | | - Deiwet Ribeiro Silva
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil
| | - Amanda Cabral David
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil
| | - Leonardo Paroche de Matos
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil
| | - Rodrigo Labat Marcos
- Postgraduate Program in Medicine Biophotonics, Universidade Nove de Julho, Rua Vergueiro, 235, Liberdade, 01504-000, São Paulo, Brasil
| | - José Antônio Silva Junior
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil
| | - Stella Regina Zamuner
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil.
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Elad S, Keegan R, Fregnani ER, Gavish L, Ottaviani G, Arany P, Zadik Y. Immediate pain alleviation in oral mucositis and other oral ulcerative diseases through photobiomodulation therapy: the preemptive treatment concept. Quintessence Int 2024; 0:0. [PMID: 38619258 DOI: 10.3290/j.qi.b5213529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
OBJECTIVE Photobiomodulation (PBM) therapy is recommended by multiple international societies for managing oral mucositis (OM). These recommendations are based on extensive evidence. However, the search for an optimal PBM protocol continues. This mapping review focuses on a novel aspect of PBM therapy which is the immediate effect on pain levels associated with oral ulcerative conditions. DATA SOURCES This literature review systematically compiles and evaluates the evidence about OM, alongside other oral ulcerative conditions, as the protocols that achieved pain relief for these oral conditions may have potential applicability to OM management. The scientific database used was PubMed. CONCLUSION Whereas most of the randomized controlled trials about PBM therapy for OM and other ulcerative oral diseases reported delayed pain relief, certain PBM therapy protocols reported immediate pain relief. The results of this review highlight the concept of preemptive PBM therapy, in which PBM therapy is delivered early in the development of OM throughout the oncotherapy and may achieve immediate pain relief consistently in most of the patients and close to a negligible pain level. PBM therapy, as a powerful non-pharmacologic tool for immediate pain relief, has a great beneficial value in patients suffering from OM and other painful oral ulcerative diseases such as recurrent aphthous stomatitis and chronic graft-versus-host disease.
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Fernandes F, Oliveira S, Monteiro F, Gasik M, Silva FS, Sousa N, Carvalho Ó, Catarino SO. Devices used for photobiomodulation of the brain-a comprehensive and systematic review. J Neuroeng Rehabil 2024; 21:53. [PMID: 38600582 PMCID: PMC11007916 DOI: 10.1186/s12984-024-01351-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 04/02/2024] [Indexed: 04/12/2024] Open
Abstract
A systematic review was conducted to determine the trends in devices and parameters used for brain photobiomodulation (PBM). The revised studies included clinical and cadaveric approaches, in which light stimuli were applied to the head and/or neck. PubMed, Scopus, Web of Science and Google Scholar databases were used for the systematic search. A total of 2133 records were screened, from which 97 were included in this review. The parameters that were extracted and analysed in each article were the device design, actuation area, actuation site, wavelength, mode of operation, power density, energy density, power output, energy per session and treatment time. To organize device information, 11 categories of devices were defined, according to their characteristics. The most used category of devices was laser handpieces, which relate to 21% of all devices, while 28% of the devices were not described. Studies for cognitive function and physiological characterisation are the most well defined ones and with more tangible results. There is a lack of consistency when reporting PBM studies, with several articles under defining the stimulation protocol, and a wide variety of parameters used for the same health conditions (e.g., Alzheimer's or Parkinson's disease) resulting in positive outcomes. Standardization for the report of these studies is warranted, as well as sham-controlled comparative studies to determine which parameters have the greatest effect on PBM treatments for different neurological conditions.
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Affiliation(s)
- Filipa Fernandes
- Center for Micro-ElectroMechanical Systems (CMEMS-UMINHO), University of Minho, Guimarães, Portugal.
| | - Sofia Oliveira
- Center for Micro-ElectroMechanical Systems (CMEMS-UMINHO), University of Minho, Guimarães, Portugal
| | - Francisca Monteiro
- Center for Micro-ElectroMechanical Systems (CMEMS-UMINHO), University of Minho, Guimarães, Portugal
| | - Michael Gasik
- Department of Chemical and Metallurgical Engineering, School of Chemical Engineering, Aalto University Foundation, Espoo, Finland
| | - Filipe S Silva
- Center for Micro-ElectroMechanical Systems (CMEMS-UMINHO), University of Minho, Guimarães, Portugal
- LABBELS-Associate Laboratory, Braga, Guimarães, Portugal
| | - Nuno Sousa
- Life and Health Sciences Research Institute (ICVS), University of Minho, 4710-057, Braga, Portugal
- ICVS/3BS, PT Government Associate Laboratory, 4710-057, Braga, Portugal
- 2CA-Braga, CVS/3BS, PT Government Associate Laboratory, 4710-057, Braga, Portugal
| | - Óscar Carvalho
- Center for Micro-ElectroMechanical Systems (CMEMS-UMINHO), University of Minho, Guimarães, Portugal
- LABBELS-Associate Laboratory, Braga, Guimarães, Portugal
| | - Susana O Catarino
- Center for Micro-ElectroMechanical Systems (CMEMS-UMINHO), University of Minho, Guimarães, Portugal.
- LABBELS-Associate Laboratory, Braga, Guimarães, Portugal.
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Mosannen Mozaffari P, Delavarian Z, Fekrazad R, Fani Pakdel A, Rashed Mohassel M, Taghi Shakeri M, Ghazi A. Evaluation of the Effect of Photobiomodulation on Radiation-Induced Xerostomia in Head and Neck Cancer Patients: A Randomized Clinical Trial. J Lasers Med Sci 2024; 15:e4. [PMID: 38655042 PMCID: PMC11033859 DOI: 10.34172/jlms.2024.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 12/16/2023] [Indexed: 04/26/2024]
Abstract
Introduction: Radiotherapy-induced xerostomia is an important side effect of head and neck cancer (HNC) treatment. Photobiomodulation (PBM) is one of the new emerging methods for preventing or reducing this problem. The aim of this study is to evaluate the effect of PBM on radiation-induced xerostomia in HNC patients. Methods: Thirty-seven patients with HNC who were referred for radiotherapy to Mashhad cancer center. In the case group, an infrared diode laser was used in contact mode on 16 points (covering minor and major salivary glands). The device emitted a wavelength of 810 nm and operated at the power of 200 mW and continuous wave mode. Each area was irradiated for 4 seconds in contact mode with gentle pressure, and the laser energy was 0.8 J with an energy density of 2.85 J/cm2 at the surface of the probe (spot size, 0.28 cm2 ). The total dose was 45.6 J/cm2. The power density was 714.2 w/cm2. In the control group, the sham laser device was used. Subjective xerostomia was evaluated through the LENT SOMA scale (LSS). Stimulated and unstimulated saliva was also assessed. Data were analyzed with SPSS ver22 statistical software. Results: The study included 26 men and 11 women with a mean age of 55.6±15.3 years. In the sixth week, the case group produced more stimulated saliva than the control group (P=0.006). They also had less subjective xerostomia than the control group in weeks four to six. Conclusion: In the present study, PBM had a preventive effect on stimulated saliva and subjective xerostomia and can be recommended as an adjunctive treatment. Further studies with a higher sample size and the use of a low-level laser in more sessions are needed for definitive comment.
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Affiliation(s)
- Pegah Mosannen Mozaffari
- Oral and Maxillofacial Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Delavarian
- Oral and Maxillofacial Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Fekrazad
- Radiation Sciences Research Center, AJA University of Medical Sciences, Tehran, Iran
- International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research, Network (USERN), Tehran, Iran
| | - Azar Fani Pakdel
- Cancer Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Mohammad Taghi Shakeri
- Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ala Ghazi
- Oral and Maxillofacial Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Sales AFS, Dos Santos Jorge Sousa K, de Souza A, Bonifacio M, Araújo TAT, de Almeida Cruz M, Costa MB, Ribeiro DA, Assis L, Martignago CCS, Rennó AC. Association of a Skin Dressing Made With the Organic Part of Marine Sponges and Photobiomodulation on the Wound Healing in an Animal Model. Mar Biotechnol (NY) 2024; 26:276-287. [PMID: 38441733 DOI: 10.1007/s10126-024-10295-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/02/2024] [Indexed: 04/25/2024]
Abstract
The present study aims to characterize and to evaluate the biological effects of a skin dressing manufactured with the organic part of the Chondrilla caribensis marine sponge (called spongin-like collagen (SC)) associated or not to photobiomodulation (PBM) on the skin wound healing of rats. Skin dressings were manufactured with SC and it was characterized using scanning electron microscopy (SEM) and a tensile assay. In order to evaluate its biological effects, an experimental model of cutaneous wounds was surgically performed. Eighteen rats were randomly distributed into three experimental groups: control group (CG): animals with skin wounds but without any treatment; marine collagen dressing group (DG): animals with skin wounds treated with marine collagen dressing; and the marine collagen dressing + PBM group (DPG): animals with skin wounds treated with marine collagen dressing and PBM. Histopathological, histomorphometric, and immunohistochemical evaluations (qualitative and semiquantitative) of COX2, TGFβ, FGF, and VEGF were done. SEM demonstrates that the marine collagen dressing presented pores and interconnected fibers and adequate mechanical strength. Furthermore, in the microscopic analysis, an incomplete reepithelialization and the presence of granulation tissue with inflammatory infiltrate were observed in all experimental groups. In addition, foreign body was identified in the DG and DPG. COX2, TGFβ, FGF, and VEGF immunostaining was observed predominantly in the wound area of all experimental groups, with a statistically significant difference for FGF immunostaining score of DPG in relation to CG. The marine collagen dressing presented adequate physical characteristics and its association with PBM presented favorable biological effects to the skin repair process.
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Affiliation(s)
- Abdias Fernando Simon Sales
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Karolyne Dos Santos Jorge Sousa
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Amanda de Souza
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Mirian Bonifacio
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Tiago Akira Tashiro Araújo
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Matheus de Almeida Cruz
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Márcia Busanello Costa
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Daniel Araki Ribeiro
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Lívia Assis
- Scientific Institute and Technological Department, University Brazil, São Paulo-Itaquera, SP, Brazil
| | - Cintia Cristina Santi Martignago
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Ana Cláudia Rennó
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil.
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Burton B, Munk MR, Tedford SE, Croissant CL, Rückert R, Tedford CE. A Response to: Letter to the Editor Regarding "LIGHTSITE II Randomized Multicenter Trial: Evaluation of Multiwavelength Photobiomodulation in Non-exudative Age-Related Macular Degeneration". Ophthalmol Ther 2024; 13:1055-1060. [PMID: 38319553 PMCID: PMC10912382 DOI: 10.1007/s40123-024-00896-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 01/19/2024] [Indexed: 02/07/2024] Open
Affiliation(s)
- Ben Burton
- James Paget University, Great Yarmouth, UK
| | - Marion R Munk
- Augenarzt-Praxisgemeinschaft Gutblick AG, Pfäffikon, Switzerland
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Uysal BS, Sarıkaya B, Dizakar SÖA, Kaplanoğlu GT, Gümüşderelioğlu M. Investigation of healing strategies in a rat corneal opacity model with polychromatic light and stem cells injection. J Photochem Photobiol B 2024; 253:112874. [PMID: 38422971 DOI: 10.1016/j.jphotobiol.2024.112874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/13/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
Corneal opacities are a major cause of vision loss worldwide. However, the current therapies are suboptimal to manage the corneal wound healing process. Therefore, there is an obvious need to develop new treatment strategies that are efficient in promoting wound healing in patients with severe corneal disorders. In this study, we investigated and compared the efficacy of adipose-derived mesenchymal stem cells (ADMSCs) and photobiomodulation (PBM) with polychromatic light in the NIR (600-1200 nm) alone and in combination, on corneal opacity, inflammatory response, and tissue architecture in a rat corneal opacity model created by mechanical injury. All animals were divided into four groups randomly following the injury: injury only (no treatment), ADMSCs treatment, PBM treatment and combined (ADMSCs+PBM) treatment (n = 12 eyes per group). At the 10th and 30th day following injury, corneal opacity formation, neovascularization, and corneal thickness were assessed. On the 30th day the harvested corneas were analyzed by transmission electron microscopy (TEM), histological evaluation, immunohistochemical (IHC) staining and real-time polymerase chain reaction (RT-PCR). On day 30, the corneal opacity score, neovascularization grade, and corneal thickness in all treatment groups were significantly lower in comparison with the untreated injured corneas. The TEM imaging and H&E staining together clearly revealed a significant enhancement in corneal regeneration with improved corneal microenvironment and reduced vascularization in the combined administration of PBM and ADMSCs compared to treatment of PBM and ADMSCs alone. In addition, the IHC staining, and RT-PCR analysis supported our hypothesis that combining ADMSCs therapy with PBM alleviated the inflammatory response, and significantly decreased scar formation compared to either ADMSCs or PBM alone during the corneal wound healing.
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Affiliation(s)
- Betül Seher Uysal
- Gazi University, Faculty of Medicine, Department of Ophthalmology, Ankara, Turkey
| | - Burcu Sarıkaya
- Balıkesir University, Faculty of Medicine, Department of Medical Genetics, Balıkesir, Turkey
| | | | - Gülnur Take Kaplanoğlu
- Gazi University, Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
| | - Menemşe Gümüşderelioğlu
- Hacettepe University, Graduate School of Science and Engineering, Bioengineering Division, Ankara, Turkey.
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22
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Grisanti S, Bartz-Schmidt KU, Heimann H, Lommatzsch A, Walter P, Ach T. Letter to the Editor Regarding "LIGHTSITE II Randomized Multicenter Trial: Evaluation of Multiwavelength Photobiomodulation in Non-exudative Age-Related Macular Degeneration". Ophthalmol Ther 2024; 13:1051-1053. [PMID: 38319554 PMCID: PMC10912370 DOI: 10.1007/s40123-024-00894-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 01/19/2024] [Indexed: 02/07/2024] Open
Affiliation(s)
- Salvatore Grisanti
- Department of Ophthalmology, University of Luebeck, University Medical Center Schleswig-Holstein, Luebeck, Germany.
| | - Karl-Ulrich Bartz-Schmidt
- University Eye Hospital, Center of Ophthalmology, University Hospital Tuebingen, Eberhard-Carls University Tuebingen, Tuebingen, Germany
| | - Heinrich Heimann
- Department of Ophthalmology, University Hospital RWTH Aachen, Aachen, Germany
| | | | - Peter Walter
- Department of Ophthalmology, Royal Liverpool University Hospital, Liverpool, UK
| | - Thomas Ach
- Department of Ophthalmology, University Hospital Bonn, Bonn, Germany
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23
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Hyun J, Eom J, Im J, Kim YJ, Seo I, Kim SW, Im GB, Kim YH, Lee DH, Park HS, Yun DW, Kim DI, Yoon JK, Um SH, Yang DH, Bhang SH. Fibroblast function recovery through rejuvenation effect of nanovesicles extracted from human adipose-derived stem cells irradiated with red light. J Control Release 2024; 368:453-465. [PMID: 38447812 DOI: 10.1016/j.jconrel.2024.02.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/07/2024] [Accepted: 02/29/2024] [Indexed: 03/08/2024]
Abstract
Fibroblasts (hDFs) are widely employed for skin regeneration and the treatment of various skin disorders, yet research were rarely investigated about restoration of diminished therapeutic efficacy due to cell senescence. The application of stem cell and stem cell-derived materials, exosomes, were drawn attention for the restoration functionality of fibroblasts, but still have limitation for unintended side effect or low yield. To advance, stem cell-derived nanovesicle (NV) have developed for effective therapeutic reagents with high yield and low risk. In this study, we have developed a method using red light irradiated human adipose-derived stem cells (hADSCs) derived NV (R-NVs) for enhancing the therapeutic efficacy and rejuvenating hDFs. Through red light irradiation, we were able to significantly increase the content of stemness factors and angiogenic biomolecules in R-NVs. Treatment with these R-NVs was found to enhance the migration ability and leading to rejuvenation of old hDFs to levels similar to those of young hDFs. In subsequent in vivo experiments, the treatment of old hDFs with R-NVs demonstrated a superior skin wound healing effect, surpassing that of young hDFs. In summary, this study successfully induced rejuvenation and leading to increased therapeutic efficacy to R-NVs treated old hDFs previously considered as biowaste.
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Affiliation(s)
- Jiyu Hyun
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jiin Eom
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jisoo Im
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yu-Jin Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea; Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Inwoo Seo
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sung-Won Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea; Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Gwang-Bum Im
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea; Department of Surgery, Harvard Medical School, Boston, MA, 02115 USA
| | - Yeong Hwan Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Dong-Hyun Lee
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyun Su Park
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Dae Won Yun
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Dong-Ik Kim
- Division of Vascular Surgery, Samsung Medical Center, School of Medicine, Sungkyunkwan University, Seoul 06351, South Korea
| | - Jeong-Kee Yoon
- Department of Systems Biotechnology, Chung-Ang University, Anseong 4726, Republic of Korea
| | - Soong Ho Um
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Dae Hyeok Yang
- Department of Medical Life Sciences, College of Medicine, Institute of Cell and Tissue Engineering, The Catholic University of Korea, Seoul, Republic of Korea
| | - Suk Ho Bhang
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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24
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Shamel M, Raafat S, El Karim I, Saber S. Photobiomodulation and low-intensity pulsed ultrasound synergistically enhance dental mesenchymal stem cells viability, migration and differentiation: an invitro study. Odontology 2024:10.1007/s10266-024-00920-6. [PMID: 38517569 DOI: 10.1007/s10266-024-00920-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/18/2024] [Indexed: 03/24/2024]
Abstract
Novel methods and technologies that improve mesenchymal stem cells (MSCs) proliferation and differentiation properties are required to increase their clinical efficacy. Photobiomodulation (PBM) and low-intensity pulsed ultrasound (LIPUS) are two strategies that can be used to enhance the regenerative properties of dental MSCs. This study evaluated the cytocompatibility and osteo/odontogenic differentiation of dental pulp, periodontal ligament, and gingival MSCs after stimulation by either PBM or LIPUS and their combined effect. MTT assay, cell migration assay, osteo/odontogenic differentiation by AR staining and ALP activity, and expression of osteo/odontogenic markers (OPG, OC, RUNX2, DSPP, DMP1) by RT-qPCR were evaluated. Statistical analysis was performed using ANOVA, followed by Tukey's post hoc test, with a p-value of less than 0.05 considered significant. The results showed that combined stimulation by PBM and LIPUS resulted in significantly the highest viability of MSCs, the fastest migration, the most dense AR staining, the most increased ALP activity, and the most elevated levels of osteogenic and odontogenic markers. The synergetic stimulation of PBM and LIPUS can be utilized in cell-based regenerative approaches to promote the properties of dental MSCs.
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Affiliation(s)
- Mohamed Shamel
- Department of Oral Biology, Faculty of Dentistry, The British University in Egypt, El Sherouk City, Egypt
| | - Shereen Raafat
- Department of Pharmacology, Faculty of Dentistry, The British University in Egypt, El Sherouk City, Egypt
- Dental Science Research Group, Health Research Centre of Excellence, The British University in Egypt (BUE), El Sherouk City, Egypt
| | - Ikhlas El Karim
- School of Medicine, Dentistry and Biomedical Sciences, Queen's University, Belfast, UK
| | - Shehabeldin Saber
- Dental Science Research Group, Health Research Centre of Excellence, The British University in Egypt (BUE), El Sherouk City, Egypt.
- Department of Endodontics, Faculty of Dentistry, The British University in Egypt, El Sherouk City, Egypt.
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Varellis MLZ, Bussadori SK, Pavesi VCS, Pereira BJ, Bezerra CDS, Silva FG, Castro GS, Afonso RCT, Barbosa Filho VF, Deana AM. Evaluation of photobiomodulation in the salivary production of patients with hyposalivation induced by antihypertensive drugs - A blind, randomized, controlled clinical trial. Complement Ther Clin Pract 2024; 56:101845. [PMID: 38608541 DOI: 10.1016/j.ctcp.2024.101845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/06/2024] [Accepted: 03/09/2024] [Indexed: 04/14/2024]
Abstract
BACKGROUND Arterial hypertension is a systemic condition that affects about 35% of the world population. The drugs that are used for its control can produce hyposalivation. This work evaluated the effect of photobiomodulation on salivary flow rate, salivary pH, total protein concentration, and calcium concentration in individuals using antihypertensive medications. MATERIAL AND METHODS 41 subjects were randomly allocated in one of two groups: control (placebo) and photobiomodulation. The subjects had their salivary glands (20 sites) irradiated with a laser emitting at 808 nm, 4J/site once a week for 4 weeks and had their salivary flow measured before and after the whole treatment. RESULTS The intragroup analysis (before and after treatment) shows a significant difference for both non-stimulated and stimulated salivary flow in the photobiomodulation group (p = 0.0007 and p = 0.0001, respectively). Comparing the placebo with the photobiomodulation group, significant differences were found for both non-stimulated (p = 0.0441) and stimulated salivary flow (p = 0.0441) after the treatment. No significant differences were found in pH, total protein concentration, calcium concentration. CONCLUSION Despite the usage of drugs that influence the nervous system and typically result in a reduction of saliva production, photobiomodulation demonstrated a remarkable ability to enhance saliva production by a significant 75%.
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Affiliation(s)
- Maria Lucia Zarvos Varellis
- Post-graduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, Brazil
| | - Sandra Kalil Bussadori
- Post-graduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, Brazil
| | | | - Benedito Jorge Pereira
- Post-graduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, Brazil
| | - Cícero Dayves Silva Bezerra
- Post-graduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, Brazil
| | - Felipe Gonçalves Silva
- Post-graduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, Brazil
| | - Gabriela Silva Castro
- Post-graduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, Brazil
| | | | | | - Alessandro Melo Deana
- Post-graduate Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, Brazil.
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26
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Abd-Elhaleem Othman MA, Zaky AA, Eltayeb EA, Khalil NM. A radiographic and histological study to compare red (650 nm) versus near infrared (810 nm) diode lasers photobiomodulation for alveolar socket preservation. Sci Rep 2024; 14:6871. [PMID: 38519552 PMCID: PMC10959980 DOI: 10.1038/s41598-024-57114-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 03/14/2024] [Indexed: 03/25/2024] Open
Abstract
Previous findings indicated that the laser photobiomodulation is more effective than the control or placebo in preserving the alveolar socket. This study aimed to compare two different lasers regarding their effectiveness in aiding alveolar socket preservation. Twenty extraction sockets were selected then divided into two equal groups. Group A was exposed to 650 nm Diode laser, and Group B to 810 nm Diode laser following the same protocol and parameters after a standard alveolar socket preservation procedure with collagen plug. Radiographic analysis with cone beam computed tomography was done to compare the alveolar bone surface area immediately after extraction and three months post-operatively, while bone samples collected before implant drilling were histologically examined for newly formed bone evaluation and histomorphometric analysis in terms of percentage of new bone surface area, percentage of unmineralized bone and finally, immunohistochemical analysis of Osteocalcin reaction surface area as well as optical density. Radiographically, infrared (810 nm) Diode effect on alveolar bone surface area has significantly exceeded the red laser, while histologically, red (650 nm) Diode has demonstrated statistical significance regarding all parameters; newly formed bone surface area percentage, unmineralized bone area percentage and finally Osteocalcin bone marker reaction surface area percentage and optical density. Under the specified conditions and laser parameters, photobiomodulation using the 810 nm Diode got the upper hand radiographically, yet histologically, the red 650 nm Diode managed to dominate all histological parameters when both employed as an adjunct to alveolar socket preservation procedures.
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Affiliation(s)
| | - Ahmed Abbas Zaky
- Medical Applications of Lasers Department, National Institute of Laser Enhanced Sciences, Cairo University, Cairo, Egypt
| | - Elsayed Abdullah Eltayeb
- Medical Applications of Lasers Department, National Institute of Laser Enhanced Sciences, Cairo University, Cairo, Egypt
| | - Nesma Mohamed Khalil
- Oral Biology Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
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27
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Pereira DA, Bonatto MS, Santos SDS, Mendes PGJ, Sales E Pessoa R, de Oliveira GJPL. Comparison of different dual-wavelength photobiomodulation protocols application in third molar extractions. A split-mouth randomized controlled trial. Photodiagnosis Photodyn Ther 2024; 46:104054. [PMID: 38503387 DOI: 10.1016/j.pdpdt.2024.104054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/27/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024]
Abstract
OBJECTIVE To compare the use of PBMT in the soft tissue and bone healing after third molar extraction using the dual-wavelength laser directly into the post-extraction alveoli (PBMT-I), or PBMT with a red laser directly into the alveoli and with an infrared laser externally on the patient's face (PBMT-IE). METHODS Twenty patients underwent extraction of four third molars were involved in this split-mouth double-blind randomized controlled trial. The Post-extraction alveoli were treated with the following protocols: PBMT-IE: Application of a red laser directly into the alveolus, and infrared laser irradiation transcutaneously and PBMT-I: Application of dual-wavelength laser intraorally. Patients were clinically evaluated 3, 7, 14, 30, and 90 days after the surgical procedure. The analyses in this study were divided into qualitative (centered on the patient's report and on the evaluators' analysis), and quantitative analyses (measurement of the vertical and horizontal dimensions of the face with the objective of measuring post-surgical edema and radiographic analyses for evaluation of the density and structure of the newly formed bone). RESULTS A progressive improvement was observed in all parameters evaluated in this study, however, this improvement was time dependent, with no distinct effect observed between the PBMT treatments applied. CONCLUSION The different dual-wavelength PBMT protocols induced a similar postoperative clinical course in third molar extraction surgeries, with a reduced occurrence of complications and a good healing pattern of hard and soft tissues.
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Affiliation(s)
- Davisson Alves Pereira
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Department of Periodontology, Uberlândia, MG, Brazil
| | - Mariana Silva Bonatto
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Department of Periodontology, Uberlândia, MG, Brazil
| | - Samara de Souza Santos
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Department of Periodontology, Uberlândia, MG, Brazil
| | - Pedro Gomes Junqueira Mendes
- Universidade Federal de Uberlândia - UFU, School of Dentistry, Department of Periodontology, Uberlândia, MG, Brazil.
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Farazi N, Salehi-Pourmehr H, Farajdokht F, Mahmoudi J, Sadigh-Eteghad S. Photobiomodulation combination therapy as a new insight in neurological disorders: a comprehensive systematic review. BMC Neurol 2024; 24:101. [PMID: 38504162 PMCID: PMC10949673 DOI: 10.1186/s12883-024-03593-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 03/04/2024] [Indexed: 03/21/2024] Open
Abstract
Preclinical and clinical studies have indicated that combining photobiomodulation (PBM) therapy with other therapeutic approaches may influence the treatment process in a variety of disorders. The purpose of this systematic review was to determine whether PBM-combined therapy provides additional benefits over monotherapies in neurologic and neuropsychiatric disorders. In addition, the review describes the most commonly used methods and PBM parameters in these conjunctional approaches.To accomplish this, a systematic search was conducted in Google Scholar, PubMed, and Scopus databases through January 2024. 95 potentially eligible articles on PBM-combined treatment strategies for neurological and neuropsychological disorders were identified, including 29 preclinical studies and 66 clinical trials.According to the findings, seven major categories of studies were identified based on disease type: neuropsychiatric diseases, neurodegenerative diseases, ischemia, nerve injury, pain, paresis, and neuropathy. These studies looked at the effects of laser therapy in combination with other therapies like pharmacotherapies, physical therapies, exercises, stem cells, and experimental materials on neurological disorders in both animal models and humans. The findings suggested that most combination therapies could produce synergistic effects, leading to better outcomes for treating neurologic and psychiatric disorders and relieving symptoms.These findings indicate that the combination of PBM may be a useful adjunct to conventional and experimental treatments for a variety of neurological and psychological disorders.
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Affiliation(s)
- Narmin Farazi
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, 5166614756, Iran
| | - Hanieh Salehi-Pourmehr
- Research Center for Evidence-Based Medicine, Iranian EBM Centre: A Joanna Briggs Institute (JBI) Center of Excellence, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fereshteh Farajdokht
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, 5166614756, Iran
| | - Javad Mahmoudi
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, 5166614756, Iran
| | - Saeed Sadigh-Eteghad
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, 5166614756, Iran.
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29
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das Neves MF, Pinto AP, Maegima LT, Lima FPS, Lopes-Martins RÁB, Lo Schiavo Arisawa EA, Lima MO. Effects of photobiomodulation on pain, lactate and muscle performance (ROM, torque, and EMG parameters) of paretic upper limb in patients with post-stroke spastic hemiparesis-a randomized controlled clinical trial. Lasers Med Sci 2024; 39:88. [PMID: 38453765 DOI: 10.1007/s10103-024-04035-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 02/25/2024] [Indexed: 03/09/2024]
Abstract
The objective of the study was to investigate the impact of photobiomodulation (PBM) on the paretic upper limb in post-stroke patients with spastic hemiparesis and to understand the potential of PBM as a long-term non-invasive therapy for reducing the side effects caused by spasticity in the hemiparetic upper limb after a stroke. This is a double-blind randomized clinical trial constituted of 27 participants, being Control group (CG = 12 healthy individuals) and PBM group (PBMG = 15 post-stroke individuals). In the CG, the baseline blood lactate (BL) was evaluated, followed by the evaluation of the IC torque of the biceps and triceps muscles, with the isokinetic dynamometer associated with surface electromyography (EMG) and, subsequently, a new measurement of BL. The PBMG received 10 sessions of treatment with PBM (780 nm, Power: 100 mV, Power Density: 3.18 W/cm2, Energy: 4 J, Fluency: 127.4 J/cm2, Time: 40 s per point and 1.280 s total, Spot: 0.0314 cm2, 32 Points: 16 points (brachial biceps) and 16 points (brachial triceps) applied with contact at 90°, Total Energy: 64 J), which in the pre-treatment evaluation measured BL, the visual analogue scale (VAS) of pain; torque and EMG of the same muscles in the IC, subsequently, a new measurement of VAS and BL, and measurement of range of motion (ROM) during the reaching movement. At the conclusion of the ten sessions, all participants underwent a reassessment, wherein all tests originally administered during the initial evaluation were repeated. Subsequently, the data were analyzed using the Shapiro-Wilk normality test. For related data, the paired t-test was used for normal distributions and the Wilcoxon test for non-normal data. For unrelated data, the t test was used for normal distributions and the Mann-Whitney test for non-normal data. Muscle torque was higher for the CG, with a significant difference (CGxPBMG = p < 0.0001). There was no significant difference between the EMG values of the CG in relation to the Pre-PBM phase and with the Post-PBM phase of the PBMG (p > 0.05). On the other hand, there was a 38% reduction in pain reported by hemiparetic patients (p = 0.0127) and a decrease in BL in the PBMG. Post-PBM ROM increased by 46.1% in the elbow extension of the paretic limb. In conclusion, Photobiomodulation (PBM) demonstrated significant improvements in muscle performance, reducing fatigue and pain levels, and enhancing range of motion in post-stroke patients with spastic hemiparesis. These findings support the potential integration of PBM into rehabilitation protocols, but further research and clinical trials are needed to validate and expand upon these promising outcomes.
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Affiliation(s)
- Marcele Florêncio das Neves
- Laboratório de Engenharia de Reabilitação Sensório Motora, Instituto de Pesquisa E Desenvolvimento, IP&D, Universidade Do Vale Do Paraíba, UNIVAP, Av. Shishima Hifumi, São José Dos Campos, São Paulo, 2911, Brazil
| | - Ana Paula Pinto
- Laboratório de Engenharia de Reabilitação Sensório Motora, Instituto de Pesquisa E Desenvolvimento, IP&D, Universidade Do Vale Do Paraíba, UNIVAP, Av. Shishima Hifumi, São José Dos Campos, São Paulo, 2911, Brazil
| | - Letícia Tiemi Maegima
- Laboratório de Engenharia de Reabilitação Sensório Motora, Instituto de Pesquisa E Desenvolvimento, IP&D, Universidade Do Vale Do Paraíba, UNIVAP, Av. Shishima Hifumi, São José Dos Campos, São Paulo, 2911, Brazil
| | - Fernanda Pupio Silva Lima
- Laboratório de Engenharia de Reabilitação Sensório Motora, Instituto de Pesquisa E Desenvolvimento, IP&D, Universidade Do Vale Do Paraíba, UNIVAP, Av. Shishima Hifumi, São José Dos Campos, São Paulo, 2911, Brazil.
- Programa de Pós Graduação Em Engenharia Biomédica, Avenida Shishima Hifumi, Urbanova, SP, 2911, Brazil.
| | - Rodrigo Álvaro Brandão Lopes-Martins
- Post-Graduate Program in Human Movement and Rehabilitation, Research Group in Biophotonics and Experimental Therapeutics in Health and Esthetics, Universidade Evangélica de Goiás - UniEVANGÉLICA, Anápolis, Goiás, Brazil
| | - Emilia Angela Lo Schiavo Arisawa
- Laboratório de Engenharia de Reabilitação Sensório Motora, Instituto de Pesquisa E Desenvolvimento, IP&D, Universidade Do Vale Do Paraíba, UNIVAP, Av. Shishima Hifumi, São José Dos Campos, São Paulo, 2911, Brazil
| | - Mário Oliveira Lima
- Laboratório de Engenharia de Reabilitação Sensório Motora, Instituto de Pesquisa E Desenvolvimento, IP&D, Universidade Do Vale Do Paraíba, UNIVAP, Av. Shishima Hifumi, São José Dos Campos, São Paulo, 2911, Brazil
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30
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Escobar LM, Grajales M, Bendahan Z, Jaimes S, Baldión P. Osteoblastic differentiation and changes in the redox state in pulp stem cells by laser treatment. Lasers Med Sci 2024; 39:87. [PMID: 38443654 PMCID: PMC10914891 DOI: 10.1007/s10103-024-04016-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 02/05/2024] [Indexed: 03/07/2024]
Abstract
The aim of this study was to determine the effect of low-level laser therapy (LLLT) on cell proliferation, mitochondrial membrane potential changes (∆Ψm), reactive oxygen species (ROS), and osteoblast differentiation of human dental pulp stem cells (hDPSCs). These cells were irradiated with 660- and 940-nm lasers for 5 s, 50 s, and 180 s. Cell proliferation was assessed using the resazurin assay, cell differentiation by RUNX2 and BMP2 expression, and the presence of calcification nodules using alizarin-red S staining. ROS was determined by the dichlorofluorescein-diacetate technique and changes in ∆Ψm by the tetramethylrhodamine-ester assay. Data were analyzed by a Student's t-test and Mann-Whitney U test. The 940-nm wavelength for 5 and 50 s increased proliferation at 4 days postirradiation. After 8 days, a significant decrease in proliferation was observed in all groups. Calcification nodules were evident in all groups, with a greater staining intensity in cells treated with a 940-nm laser for 50 s, an effect that correlated with increased RUNX2 and BMP2 expression. ROS production and Δψm increased independently of irradiation time. In conclusion, photobiomodulation (PBM) with LLLT induced morphological changes and reduced cell proliferation rate, which was associated with osteoblastic differentiation and increased ROS and Δψm, independent of wavelength and time.
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Affiliation(s)
- Lina M Escobar
- Grupo de Investigaciones Básicas y Aplicadas en Odontología, IBAPO Facultad de Odontología, Universidad Nacional de Colombia, Carrera 30 No. 45-03, Bloque 210, 111321, Bogotá, Colombia.
| | - Marggie Grajales
- Departamento de Salud Oral, Facultad de Odontología, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Zita Bendahan
- Unidad de Manejo Integral de Malformaciones Craneofaciales UMIMC, Facultad de Odontología, Universidad El Bosque, Bogotá, Colombia
| | - Sully Jaimes
- Grupo de Investigaciones Básicas y Aplicadas en Odontología, IBAPO Facultad de Odontología, Universidad Nacional de Colombia, Carrera 30 No. 45-03, Bloque 210, 111321, Bogotá, Colombia
| | - Paula Baldión
- Departamento de Salud Oral, Facultad de Odontología, Universidad Nacional de Colombia, Bogotá, Colombia
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Rupel K, Cornacchia A, Poiani M, Mohamed S, De Bellis E, Ballerini M, Bogdan Preda TM, Poropat A, Di Lenarda R, Zaja F, Biasotto M, Ottaviani G. Preventive versus curative photobiomodulation for oral mucositis in patients with multiple myeloma undergoing hematopoietic stem cell transplantation: which approach is more effective? Support Care Cancer 2024; 32:208. [PMID: 38438625 DOI: 10.1007/s00520-024-08414-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 02/28/2024] [Indexed: 03/06/2024]
Abstract
PURPOSE There is increasing evidence that photobiomodulation (PBM) therapy is both an effective and safe approach in hematopoietic stem cell transplantation (HSCT) for both prevention and management of oral mucositis (OM), but its use in clinical practice is still limited and the timing of application is under discussion. The aim of this retrospective study was to evaluate possible differences between patients treated either with preventive or curative PBM therapy. METHODS The retrospective case series included 24 patients suffering from multiple myeloma who underwent the same conditioning and transplantation protocol. Patients were treated either with preventive PBM starting from the first day of conditioning up to two days post-HSCT or with curative PBM (starting at OM onset for four consecutive days). OM score, pain, and functional parameters were recorded. RESULTS All patients developed OM. Preventive PBM was significantly more effective in reducing OM severity (p < 0.0001) and pain (p < 0.0001) post-HSCT than curative PBM. Furthermore, we found a lower number of patients reporting discomfort in all subjective parameters (pain during swallowing, chewing, and speaking) in the preventive PBM group. No adverse events related to PBM therapy were recorded in both groups. CONCLUSION The timing for PBM therapy in patients undergoing HSCT is crucial: when started on the first day of conditioning, it significantly reduces both pain and OM severity, providing an important benefit also in subjective oral functions such as speaking, swallowing, and chewing, thus increasing the overall adherence to the oncological therapies.
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Affiliation(s)
- Katia Rupel
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy.
| | - Arianna Cornacchia
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Monica Poiani
- UCO Hematology, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Sara Mohamed
- UCO Hematology, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Eleonora De Bellis
- UCO Hematology, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Mario Ballerini
- UCO Hematology, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | | | - Augusto Poropat
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Roberto Di Lenarda
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Francesco Zaja
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
- UCO Hematology, Azienda Sanitaria Universitaria Giuliano Isontina, Trieste, Italy
| | - Matteo Biasotto
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
| | - Giulia Ottaviani
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Trieste, Italy
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Abdolrahmani A, Epstein JB, Samim F. Medication-related osteonecrosis of the jaw: evolving research for multimodality medical management. Support Care Cancer 2024; 32:212. [PMID: 38443685 DOI: 10.1007/s00520-024-08388-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 02/16/2024] [Indexed: 03/07/2024]
Abstract
PURPOSE Medication-related osteonecrosis of the jaw (MRONJ) is a debilitating side effect of antiresorptive and antiangiogenic agents that can lead to progressive bone destruction in the maxillofacial region. Dental surgery, including tooth extractions, commonly trigger the onset of MRONJ. While guidelines suggest avoiding extraction when possible, complete avoidance is not always feasible, as necrosis can develop from dental and periodontal disease without dental procedures. The goal of this article is to provide an update review of current preventive and therapeutic approaches for MRONJ. METHODS A comprehensive electronic search was conducted on PubMed/MEDLINE, Embase, and Scopus databases. All English articles encompassing randomized controlled trials, systematic reviews, observational studies, and case studies were reviewed. The current medical treatments and adjuvant therapies for managing MRONJ patients were critically assessed and summarized. RESULTS Pentoxifylline and alpha tocopherol (PENT-E), teriparatide, photobiomodulation (PBM), photodynamic therapy (PDT), and the use of growth factors have shown to enhance healing in MRONJ patients. Implementing these methods alone or in conjunction with surgical treatment has been linked to reduced discomfort and improved wound healing and increased new bone formation. DISCUSSION While several adjuvant treatment modalities exhibit promising results in facilitating the healing process, current clinical practice guidelines predominantly recommend antibiotic therapy as a non-surgical approach, primarily addressing secondary infections in necrotic areas. However, this mainly addresses the potential infectious complication of MRONJ. Medical approaches including PENT-E, teriparatide, PBM, and PDT can result in successful management and should be considered prior to taking a surgical approach. Combined medical management for both preventing and managing MRONJ holds potential for achieving optimal clinical outcomes and avoiding surgical intervention, requiring further validation through larger studies and controlled trials.
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Affiliation(s)
- Ali Abdolrahmani
- Oral Medicine & Oral Pathology Clinic, Montreal General Hospital, Montreal, QC, Canada
| | - Joel B Epstein
- Department of Surgery, City of Hope National Cancer Center, Duarte, CA, USA
- Cedars-Sinai Medical Center, Samuel Oschin Comprehensive Cancer Institute, Los Angeles, CA, USA
| | - Firoozeh Samim
- Faculty of Dental Medicine and Oral Health, McGill University, Montreal, QC, Canada.
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Vatandoust D, Ahmadi H, Amini A, Mostafavinia A, Fathabady FF, Moradi A, Fridoni M, Hamblin MR, Ebrahimpour-Malekshah R, Chien S, Bayat M. Photobiomodulation preconditioned diabetic adipose derived stem cells with additional photobiomodulation: an additive approach for enhanced wound healing in diabetic rats with a delayed healing wound. Lasers Med Sci 2024; 39:86. [PMID: 38438583 DOI: 10.1007/s10103-024-04034-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/23/2024] [Indexed: 03/06/2024]
Abstract
In this preclinical investigation, we examined the effects of combining preconditioned diabetic adipose-derived mesenchymal stem cells (AD-MSCs) and photobiomodulation (PBM) on a model of infected ischemic delayed healing wound (injury), (IIDHWM) in rats with type I diabetes (TIDM). During the stages of wound healing, we examined multiple elements such as stereology, macrophage polarization, and the mRNA expression levels of stromal cell-derived factor (SDF)-1α, vascular endothelial growth factor (VEGF), hypoxia-induced factor 1α (HIF-1α), and basic fibroblast growth factor (bFGF) to evaluate proliferation and inflammation. The rats were grouped into: (1) control group; (2) diabetic-stem cells were transversed into the injury site; (3) diabetic-stem cells were transversed into the injury site then the injury site exposed to PBM; (4) diabetic stem cells were preconditioned with PBM and implanted into the wound; (5) diabetic stem cells were preconditioned with PBM and transferred into the injury site, then the injury site exposed additional PBM. While on both days 4, and 8, there were advanced histological consequences in groups 2-5 than in group 1, we found better results in groups 3-5 than in group 2 (p < 0.05). M1 macrophages in groups 2-5 were lower than in group 1, while groups 3-5 were reduced than in group 2 (p < 0.01). M2 macrophages in groups 2-5 were greater than in group 1, and groups 3-5 were greater than in group 2. (p ≤ 0.001). Groups 2-5 revealed greater expression levels of bFGF, VEGF, SDF- 1α, and HIF- 1α genes than in group 1 (p < 0.001). Overall group 5 had the best results for histology (p < 0.05), and macrophage polarization (p < 0.001). AD-MSC, PBM, and AD-MSC + PBM treatments all enhanced the proliferative stage of injury repairing in the IIDHWM in TIDM rats. While AD-MSC + PBM was well than the single use of AD-MSC or PBM, the best results were achieved with PBM preconditioned AD-MSC, plus additional PBM of the injury.
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Affiliation(s)
- Dorsa Vatandoust
- Student Research Committee at Shahid Beheshti University of Medical Sciences (SBMU) in, Tehran, Iran
| | - Houssein Ahmadi
- Department of Biology and Anatomical Sciences at Shahid Beheshti University of Medical Sciences, Arabi Ave, Iran
| | - Abdollah Amini
- Department of Biology and Anatomical Sciences at Shahid Beheshti University of Medical Sciences, Arabi Ave, Iran.
| | - Atarodalsadat Mostafavinia
- Department of Anatomical Sciences and Cognitive Neuroscience at the Faculty of Medicine, Tehran Medical Sciences, Islamic Aza University in Tehran, Tehran, Iran
| | - Fatemeh Fadaei Fathabady
- Student Research Committee at Shahid Beheshti University of Medical Sciences (SBMU) in, Tehran, Iran
| | - Ali Moradi
- Department of Biology and Anatomical Sciences at Shahid Beheshti University of Medical Sciences, Arabi Ave, Iran
| | - Mohammadjavad Fridoni
- Department of Biology and Anatomical Sciences, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Michael R Hamblin
- Laser Research Centre at the Faculty of Health Science, University of Johannesburg in Doornfontein 2028, Johannesburg, South Africa
| | | | - Sufan Chien
- Price Institute of Surgical Research at the University of Louisville and Noveratech LLC of Louisville in Louisville, KY, USA.
| | - Mohammad Bayat
- Price Institute of Surgical Research at the University of Louisville and Noveratech LLC of Louisville in Louisville, KY, USA.
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Chhabrani A, Avinash BS, Bharadwaj RS, Gupta M. Laser light: Illuminating the path to enhanced periodontal care. Photodiagnosis Photodyn Ther 2024; 46:104036. [PMID: 38438004 DOI: 10.1016/j.pdpdt.2024.104036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 02/03/2024] [Accepted: 03/01/2024] [Indexed: 03/06/2024]
Abstract
The utilisation of laser technology in the realm of periodontal care represents a significant advancement in clinical practice. This article delves into the historical context of laser therapy in medicine, from its inception in 1960 to its evolution into low-level laser therapy (LLLT). LLLT, often referred to as photobiomodulation (PBM), has garnered attention due to its potential to enhance periodontal treatment outcomes. The article thoroughly examines the mechanisms of action of photobiomodulation therapy PBM(T), covering its impact on cellular and tissue levels. The authors explore the evidence-based recommendations for the use of PBM(T) in periodontal care, shedding light on its potential to improve periodontal conditions, especially when applied as an adjunct to conventional treatments. They investigate the role of PBM(T) in individuals and its possible contribution to periodontal health. Additionally, the article delves into its application in periodontal regenerative procedures and its ability to expedite soft tissue wound healing and the effects of PBM(T) in reducing periodontal inflammation and mitigating post-periodontal surgery discomfort. In conclusion, the article calls for enhanced clinical research to streamline laser procedures, develop antimicrobial photodynamic therapy, and conduct well-designed randomised controlled trials (RCTs). It also emphasises the importance of understanding the impact of laser therapy on therapeutic and biological goals, the potential to reduce invasive procedures, and the necessity of adequate research funding.
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Affiliation(s)
- Ankita Chhabrani
- Department of Periodontology, JSS Dental College and Hospital, JSS Academy of Higher Education and Research, Room No-09, Mysuru, Karnataka 570015, India
| | - B S Avinash
- Department of Periodontology, JSS Dental College and Hospital, JSS Academy of Higher Education and Research, Room No-09, Mysuru, Karnataka 570015, India.
| | - R Sumukh Bharadwaj
- Department of Periodontology, JSS Dental College and Hospital, JSS Academy of Higher Education and Research, Room No-09, Mysuru, Karnataka 570015, India
| | - Muskan Gupta
- Department of Periodontology, JSS Dental College and Hospital, JSS Academy of Higher Education and Research, Room No-09, Mysuru, Karnataka 570015, India
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Lairedj K, Klausner G, Robijns J, Arany PR, Bensadoun RJ. [ Photobiomodulation in the prevention and the management of side effects of cancer treatments: Bases, results and perspectives]. Bull Cancer 2024; 111:314-326. [PMID: 37858427 DOI: 10.1016/j.bulcan.2023.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/11/2023] [Accepted: 08/13/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND Assess the current and potential indications of photobiomodulation (PBM) therapy and their level of evidence in the prevention or treatment of side effects related to oncology treatments (radiation therapy, and to a minimal extent favored and hematopoietic stem cell transplants). And report on the recommended modalities (parameters and doses) of PBM therapy. MATERIALS AND METHODS The Embase, Medline/PubMed, Cochrane, EBSCO, Scopus, and LILACS databases were systematically reviewed to include and analyze publications of clinical studies that evaluated PBM in the prevention or management side effects related to cancer treatments. The keywords used were "photobiomodulation"; "low level laser therapy"; "acute oral mucositis"; "acute dysphagia"; "acute radiation dermatitis"; "lymphedema"; "xerostomia"; "dysgeusia"; "hyposalivation"; "lockjaw"; "bone necrosis"; "osteoradionecrosis"; "radiation induced fibrosis"; "voice and speech alterations"; "palmar-plantar erythrodysesthesia"; "graft versus host disease"; "peripheral neuropathy"; "chemotherapy induced alopecia". Prospective studies were included, while retrospective cohorts and non-original articles were excluded from the analysis. RESULTS PBM in the red or infrared spectrum has been shown to be effective in randomized controlled trials in the prevention and management of certain complications related to radiotherapy, in particular acute mucositis, epitheliitis and upper limb lymphedema. The level of evidence associated with PBM was heterogeneous, but overall remained moderate. The main limitations were the diversity and the lack of precision of the treatment protocols which could compromise the efficiency and the reproducibility of the results of the PBM. For other effects related to chemo/radiation therapy (dysgeusia, osteonecrosis, peripheral neuropathy, alopecia, palmar-plantar erythrodysaesthesia) and haematopoietic stem cell transplantation (graft versus host disease), treatment with PBM suffers from a lack of studies or limited studies at the origin of a weakened level of proof. However, based on these results, it was possible to establish safe practice parameters and doses of PBM. CONCLUSION Published data suggest that PBM could therefore be considered as supportive care in its own right for patients treated with radiation, chemotherapy, immunotherapy, hormone therapy or targeted therapies, whether in clinical practice or clinical trials. therapies. However, until solid data have been published on its long-term safety, the use of PBM should be considered with caution and within the recommended parameters and doses, particularly when practiced in areas of known or possible tumours. In this case, the patient should be informed of the theoretical benefits and risks of PBM in order to obtain informed consent before treatment.
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Affiliation(s)
- Kamel Lairedj
- Médecine générale, centre de santé Saint-Paul, 32, Delmas rue Louverture # 44, Delmas, Haïti; Université républicaine d'Haïti, # 22, Delmas 55, Lalue Ave John-Brown # 293 Bis, 1640 Port-au-Prince, Haïti
| | - Guillaume Klausner
- Oncologie - radiothérapie, centre de haute énergie (CHE), 10, boulevard Pasteur, 06000 Nice, France; Polyclinique Maymard, 13, rue Marcel-Paul, 20200 Bastia, France
| | - Julien Robijns
- Hasselt University, Faculty of Medicine and Life Sciences, Martelarenlaan 42, 3500 Hasselt, Belgique
| | - Praveen R Arany
- University at Buffalo, Oral Biology, Surgery and Biomedical Engineering, Buffalo, New York, États-Unis
| | - René-Jean Bensadoun
- Oncologie - radiothérapie, centre de haute énergie (CHE), 10, boulevard Pasteur, 06000 Nice, France; Département d'oncologie-radiothérapie, Gustave-Roussy, 114, rue Edouard-Vaillant, 94805 Villejuif, France.
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de Assis Santos VP, Rocha-Junior WGP, Luz JGC. Effects of light-emitting diode (LED) therapy on sensory changes in the inferior alveolar nerve after surgical treatment of mandibular fractures: a randomized controlled trial. Oral Maxillofac Surg 2024; 28:185-193. [PMID: 36348150 DOI: 10.1007/s10006-022-01127-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
PURPOSE A randomized controlled trial was performed to evaluate the effects of light-emitting diode (LED) therapy on sensory changes in the inferior alveolar nerve after surgical treatment of mandibular fractures. METHODS Patients admitted with surgically treated mandibular fractures between January 2018 and December 2019 were evaluated. Personal data, fracture location, fracture type, and dislocation degree were obtained. The cases were randomly allocated into two groups: LED therapy (LEDT) (57 points of 660 nm and 74 points of 850 nm, 6.4 mV/cm2, and 7.64 J) with the use of a prototype device and control (CTRL). For 6 months, tactile and thermal tests were used in the mental region. Data were analyzed using the Mann─Whitney U test and likelihood ratio test (p ≤ 0.050). RESULTS The study included 42 patients, 25 of whom had bilateral fractures and 17 had unilateral fractures, totaling 67 fractures. The mean values of the tactile and thermal sensitivity tests were lower in the LEDT group in all evaluation periods. There was a significant difference between the groups in the parasymphysis location, displacement < 5 mm, and intraoral access. Sensory changes were observed in 68.7% of all fractures upon admission, with 91.2% in the LEDT group and 78.8% in the CTRL group demonstrating complete remission during the final period of the study. CONCLUSION LED photobiomodulation accelerated the process of sensory change remission. There was an influence of the fracture location, degree of displacement, and surgical access, with a better response in the LEDT group.
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Affiliation(s)
- Vinícius Paes de Assis Santos
- Department of Oral and Maxillofacial Surgery, Hospital M. Dr. Arthur R. de Saboya, São Paulo, Brazil
- Department of Oral and Maxillofacial Surgery, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | | | - João Gualberto C Luz
- Department of Oral and Maxillofacial Surgery, School of Dentistry, University of São Paulo, São Paulo, Brazil.
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Hu J, Dong X, Lv Y, Hu D, Fei D, Dong H, Liu B, Li H, Yin H. Biphasic photobiomodulation of inflammation in mouse models of common wounds, infected wounds, and diabetic wounds. J Photochem Photobiol B 2024; 252:112868. [PMID: 38387147 DOI: 10.1016/j.jphotobiol.2024.112868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/30/2024] [Accepted: 02/12/2024] [Indexed: 02/24/2024]
Abstract
Bidirectional photobiomodulation (PBM) therapy is an active research area. However, most studies have focused on its dependence on optical parameters rather than on its tissue-dependent effects. We constructed mouse models of wounds in three inflammatory states (normal, low, and high levels of inflammations) to assess the bidirectional regulatory effect of PBM on inflammation. Mice were divided into three groups to prepare common wounds, diabetic wounds, and bacteria-infected wounds. The same PBM protocol was used to regularly irradiate the wounds over a 14 d period. PBM promoted healing of all three kinds of wounds, but the inflammatory manifestations in each were significantly different. In common wounds, PBM slightly increased the aggregation of inflammatory cells and expression of IL-6 but had no effect on the inflammatory score. For wounds in a high level of inflammation caused by infection, PBM significantly increased TNF-α expression in the first 3 d of treatment but quickly eliminated inflammation after the acute phase. For the diabetic wounds in a low level of inflammation, PBM intervention significantly increased inflammation scores and prevented neutrophils from falling below baseline levels at the end of the 14 d observation period. Under fixed optical conditions, PBM has a bidirectional (pro- or anti-inflammatory) effect on inflammation, depending on the immune state of the target organism and the presence of inflammatory stimulants. Our results provide a basis for the formulation of clinical guidelines for PBM application.
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Affiliation(s)
- Jiashen Hu
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Xiaoxi Dong
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Yue Lv
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Dian Hu
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Duheng Fei
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Huajiang Dong
- Logistics University of People's Armed Police Force, Tianjin 300309, China
| | - Bin Liu
- Characteristic Medical Center of Chinese People's Armed Police Force, Tianjin 300162, China.
| | - Hongxiao Li
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China.
| | - Huijuan Yin
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China.
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Moradinejad M, Chaharmahali R, Shamohammadi M, Mir M, Rakhshan V. Low-level laser therapy, piezocision, or their combination vs. conventional treatment for orthodontic tooth movement : A hierarchical 6-arm split-mouth randomized clinical trial. J Orofac Orthop 2024; 85:110-122. [PMID: 36129485 DOI: 10.1007/s00056-022-00427-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 05/23/2022] [Indexed: 10/14/2022]
Abstract
PURPOSE The use non-invasive or minimally invasive methods to accelerate orthodontic tooth movements (OTM) is desirable. In this regard, low-level laser therapy (LLLT, photobiomodulation) and piezocision are suggested. However, because the efficacies of these methods remain controversial/inconclusive, we investigated and compared these two methods. METHODS Sixty-four quadrants in 32 patients were randomized into three parallel intervention groups of 22, 22, and 20 (6 parallel arms, n = 64 treatment/control sides). Bilateral first premolars were extracted and canine retraction commenced. In each group, one side of the mouth was randomly selected as control, while the other side underwent each of three interventions: LLLT (940 nm, 8 J, 0.5 W, 16 s, 12 sites), piezocision, and "LLLT + piezocision". At the 3rd, 6th, and 9th follow-up weeks, canine retraction and anchorage loss were measured. Data were analyzed statistically (α = 0.05). RESULTS After 9 weeks, LLLT, piezocision, and LLLT + piezocision improved canine retraction by 0.51, 1.14, and 1.93 mm, respectively. LLLT accelerated canine retraction (compared to control) by 1.6-, 1.4-, and 1.2-fold in the 3rd, 6th, and 9th week, respectively. These statistics were 2.1-, 1.7-, and 1.5-fold for piezocision and 2.7-, 2.1-, and 1.8-fold for LLLT + piezocision. Compared to controls, each intervention showed significant retraction acceleration (p < 0.05). The effect of LLLT + piezocision was greater than that of isolated piezocision (p < 0.05), which itself was greater than that for isolated LLLT (p < 0.05). CONCLUSION All three methods accelerated OTM, with the combination of LLLT + piezocision producing the strongest and LLLT producing the weakest acceleration.
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Affiliation(s)
- Mehrnaz Moradinejad
- Department of Orthodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Rayan Chaharmahali
- Department of Orthodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Milad Shamohammadi
- Department of Orthodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Orthodontic Department, Faculty of Dentistry, Shahed University, Tehran, Iran
| | - Maziar Mir
- Department of Conservative Dentistry (DGL), Rheinisch-Westfälische Technische Hochschule (RWTH) Hospital, Aachen, Germany
- Beckman Laser Institute, University of California, Irvine, CA, USA
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Lutfy RH, Salam SA, Mohammed HS, Shakweer MM, Essawy AE. Photomodulatory effects in the hypothalamus of sleep-deprived young and aged rats. Behav Brain Res 2024; 458:114731. [PMID: 37898350 DOI: 10.1016/j.bbr.2023.114731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/19/2023] [Accepted: 10/25/2023] [Indexed: 10/30/2023]
Abstract
Insufficient sleep is associated with impaired hypothalamic activity and declined attentional performance. In this study, alterations in the hypothalamus of REM sleep-deprived (SD) young and aged rats, and the modulatory effect of near-infrared (NIR) laser were investigated. Forty-eight male Wistar rats (24 young at 2 months and 24 senile at 14 months) were divided into three groups: the control, the SD group subjected to 72 hr of sleep deprivation, and the transcranial-NIR laser-treated (TLT) group subjected to SD for 72 hr and irradiated with 830 nm laser. The hypothalamic levels of oxidative stress, inflammatory biomarkers, antioxidant enzymes, mitochondrial cytochrome C oxidase (CCO), apoptotic markers (BAX, BCL-2), and neuronal survival-associated genes (BDNF, GLP-1) were evaluated. Furthermore, the hypothalamic tissue alterations were analyzed via histological examination. The results revealed that TLT treatment has enhanced the antioxidant status, prevented oxidative insults, suppressed neuroinflammation, regulated CCO activity, reduced apoptotic markers, and tuned the survival genes (BDNF & GLP-1) in hypothalamic tissue of SD young and aged rats. Microscopically, TLT treatment has ameliorated the SD-induced alterations and restored the normal histological features of hypothalamus tissue. Moreover, the obtained data showed that SD and NIR laser therapy are age-dependent. Altogether, our findings emphasize the age-dependent adverse effects of SD on the hypothalamus and suggest the use of low-laser NIR radiation as a potential non-invasive and therapeutic approach against SD-induced adverse effects in young and aged animals.
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Affiliation(s)
- Radwa H Lutfy
- Zoology Department, Faculty of Science, Alexandria University, Egypt; School of Biotechnology, Badr University in Cairo, Badr City, Cairo 11829, Egypt
| | | | - Haitham S Mohammed
- Biophysics Department, Faculty of Science, Cairo University, Giza, Egypt.
| | - Marwa M Shakweer
- Department of Pathology, Faculty of Medicine, Ain Shams University, Cairo, Egypt; Department of Pathology, Faculty of Medicine, Badr University in Cairo (BUC), Cairo, Egypt
| | - Amina E Essawy
- Zoology Department, Faculty of Science, Alexandria University, Egypt
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Mahuli SA, Rai A, Shree P, Ul Haque Z, Mahuli AV. Efficacy of photobiomodulation in the management of oral Lichen Planus in comparison to topical corticosteroids: Systematic review, meta-analysis, and GRADE-based assessment of certainty of evidence. J Stomatol Oral Maxillofac Surg 2024:101798. [PMID: 38387618 DOI: 10.1016/j.jormas.2024.101798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 01/29/2024] [Accepted: 02/15/2024] [Indexed: 02/24/2024]
Abstract
BACKGROUND There is an urgent need to update the evidence available on the efficacy of photobiomodulation (PBM) in comparison to topical corticosteroids in the management of Oral Lichen Planus (OLP). METHODS Cochrane Oral Health's Trials Register, Cochrane Central Register of Controlled Trials in the Cochrane Library, MEDLINE Pubmed, SCOPUS, Lilacs and Google Scholar were searched. Other sources included US National Institutes of Health Ongoing Trials Register, World Health Organization International Clinical Trials Registry Platform and Clinical Trial Registry - India were searched using variations of the keywords "Laser" and "Oral Lichen Planus". Randomized controlled trials comparing PBM and topical corticosteroids in the resolution of pain among OLP patients were included. The studies were assessed using the Cochrane Risk-of-Bias assessment tool. Publication bias was assessed using a funnel plot, and the certainty of evidence was evaluated according to the GRADE guidelines. RESULTS Ten studies were included for qualitative assessment and of these eight were included in the meta-analysis. The included studies used laser parameters of varying strengths and duration. Meta-analysis favoured PBM (n = 274, MD =-0.48, CI -0.66- -0.30) for pain score. No adverse effects were reported for laser therapy. There was high heterogeneity and moderate certainty of evidence, and most studies had a high risk of bias. CONCLUSION There is improvement in the clinical parameters of OLP when treated with PBM in comparison to topical corticosteroids. However, the strength of the evidence for these findings in limited. It is recommended to conduct better long-term trials with large sample size.
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Affiliation(s)
- Simpy Amit Mahuli
- PhD Scholar, Dental Institute, Rajendra Institute of Medical Sciences (RIMS), Bariatu, Ranchi 834009, India
| | - Arpita Rai
- Associate Professor, Oral Medicine and Radiology, Dental Institute, Rajendra Institute of Medical Sciences (RIMS), Bariatu, Ranchi 834009, India.
| | - Priya Shree
- Senior Research Fellow (ICMR), Oral Medicine and Radiology, Dental Institute, Rajendra Institute of Medical Sciences (RIMS), Bariatu, Ranchi 834009, India
| | - Zeya Ul Haque
- Research Fellow, Dental Institute, Rajendra Institute of Medical Sciences (RIMS), Bariatu, Ranchi 834009, India
| | - Amit Vasant Mahuli
- Associate Professor, Public Health Dentistry, Dental Institute, Rajendra Institute of Medical Sciences (RIMS), Bariatu, Ranchi 834009, India
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de Souza V, Bitencourt KCQM, Rodrigues VMM, Schapochnik A, da Palma Cruz M, Damazo AS, Ferreira CM, Cecatto RB, Destro MFS, Lino-Dos-Santos-Franco A. Repercussion of inflammatory bowel disease on lung homeostasis: The role of photobiomodulation. Lasers Med Sci 2024; 39:70. [PMID: 38378954 DOI: 10.1007/s10103-024-04022-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 02/13/2024] [Indexed: 02/22/2024]
Abstract
Inflammatory bowel diseases (IBD) are chronic and multifactorial diseases characterized by dysfunction of the intestinal mucosa and impaired immune response. Data show an important relationship between intestine and respiratory tract. The treatments of IBD are limited. Photobiomodulation (PBM) is an effective anti-inflammatory therapy. Our objective was to evaluate the repercussion of IBD as well as its treatment with PBM on pulmonary homeostasis. Male Wistar rats were submitted to IBD induction by acetic acid and treated or not with PBM. Rats were irradiated with red LED on both right and left sides of the ventral surface and beside the external anal region during 3 consecutive days (wavelenght 660 nm, power 100 mw, total energy 15 J and time of irradiation 150 s per point). Our results showed that IBD altered pulmonary homeostasis, since we observed an increase in the histopathological score, in myeloperoxidase activity (MPO), in mast cell degranulation, and in the release and gene expression of cytokines. We also showed that PBM treatment reduced biomarkers of IBD and reverted all augmented parameters in the lung, restoring its homeostasis. Thus, we confirm experimentally the important gut-lung axis and the role of PBM as a promising therapy.
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Affiliation(s)
- Vanessa de Souza
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil
| | | | - Virgínia Mendes Matias Rodrigues
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil
| | - Adriana Schapochnik
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil
| | - Marlon da Palma Cruz
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil
| | | | | | - Rebeca Boltes Cecatto
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil
| | - Maria Fernanda Setubal Destro
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil
| | - Adriana Lino-Dos-Santos-Franco
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil.
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Sourvanos D, Zhu TC, Dimofte A, Busch TM, Lander B, Burrell JC, Neiva R, Fiorellini JP. A novel investigational preclinical model to assess fluence rate for dental oral craniofacial tissues. Photodiagnosis Photodyn Ther 2024; 46:104015. [PMID: 38373469 DOI: 10.1016/j.pdpdt.2024.104015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/21/2024]
Abstract
OBJECTIVE Photodynamic Therapy (PDT) and Photobiomodulation (PBM) are recognized for their potential in treating head and neck conditions. The heterogeneity of human tissue optical properties presents a challenge for effective dosimetry. The porcine mandible cadaver serves as an excellent model and has several similarities to human tissues of the dental oral craniofacial complex. This study aims to validate a novel modeling system that will help refine PDT and PBM dosimetry for the head and neck region. METHODS AND MATERIALS Light transmission was analyzed through several tissue combinations at distances of 2 mm to 10 mm. Maximum light fluence rates (mW/cm2) were compared across tissue types to reveal the effects of tissue heterogeneity. RESULTS The study revealed that light fluence is affected by tissue composition, with dentin/enamel showing reduced transmission and soft tissue regions exhibiting elevated values. The porcine model has proven to be efficient in mimicking human tissue responses to light, enabling the potential to optimize future protocols. CONCLUSION The porcine mandible cadaver is a novel model to understand the complex interactions between light and tissue. This study provides a foundation for future investigations into dosimetry optimization for PDT and PBM.
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Affiliation(s)
- Dennis Sourvanos
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA; Center for Innovation and Precision Dentistry (CiPD), School of Dental Medicine, School of Engineering, University of Pennsylvania, PA, USA.
| | - Timothy C Zhu
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Andreea Dimofte
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Theresa M Busch
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Bradley Lander
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA
| | - Justin C Burrell
- Center for Innovation and Precision Dentistry (CiPD), School of Dental Medicine, School of Engineering, University of Pennsylvania, PA, USA; Department of Oral and Maxillofacial Surgery, Hospital of the University of Pennsylvania and University of Pennsylvania School of Dental Medicine, University of Pennsylvania, PA, USA; Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michal J. Crescenz Veterans Affairs Medical Center, PA, USA
| | - Rodrigo Neiva
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA
| | - Joseph P Fiorellini
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA
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Mohamed RK, Elsayed NM, Mahmoud SA, Gaweesh YY. Photobiomodulation versus corticosteroid in the management of erosive oral lichen planus: a randomized controlled clinical trial. BMC Oral Health 2024; 24:246. [PMID: 38365694 PMCID: PMC10873933 DOI: 10.1186/s12903-024-03976-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 02/03/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND Oral lichen planus (OLP) is a chronic illness of immune origin that is typically treated with corticosteroids as a gold standard therapy. Photobiomodulation (PBM) may represent an alternative remedy that has the potential to treat a variety of pathological conditions by alleviating pain, reducing inflammation, and promoting tissue healing without the drawbacks of steroid therapies. Thus, the aim of the current study was to compare the effect of photobiomodulation to topical 0.1% triamcinolone acetonide on erosive oral lichen planus. METHODS This randomized controlled clinical trial involved 44 patients complaining of erosive oral lichen planus. Patients were assigned to one of two groups: control group (n = 22) received 0.1% topical triamcinolone acetonide three times daily with miconazole oral gel once daily for 4 weeks, and photobiomodulation group (n = 22) received laser therapy by 980 nm diode laser utilizing output power 300 mW twice weekly for 5 weeks (a total of 10 sessions). The evaluation of patients was performed at baseline, 6 weeks, and 12 weeks postoperatively in terms of pain, clinical scores, and biochemical evaluation of salivary malondialdehyde levels. All recorded data were analyzed using Mann-Whitney test to compare the two studied groups regarding pain, lesion size, and salivary levels of malondialdehyde. Friedman test, followed by post hoc test, was used for comparison of the data within the same group along the 3 periods at baseline, 6 weeks, and 12 weeks. RESULTS Both groups showed significant improvement in pain and clinical scores, with no statistical difference between them. Moreover, there was a significant improvement in salivary malondialdehyde levels for both groups, with no significant difference between them. CONCLUSIONS Photobiomodulation could be a promising therapeutic modality for management of erosive oral lichen planus without the side effects of steroid therapy. The salivary malondialdehyde level could be used as a biomarker to evaluate the disease severity and its response to the treatment. TRIAL REGISTRATION The study has been registered at ClinicalTrials.gov (NCT05951361) (19/07/2023).
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Affiliation(s)
- Reem Kamal Mohamed
- Department of Oral Diagnosis, Oral Medicine, Periodontology and Oral Radiology, Faculty of Dentistry, Alexandria University, Champollion St., Azarita, Alexandria Governorate, 21527, Egypt.
| | - Naguiba Mahmoud Elsayed
- Department of Oral Diagnosis, Oral Medicine, Periodontology and Oral Radiology, Faculty of Dentistry, Alexandria University, Champollion St., Azarita, Alexandria Governorate, 21527, Egypt
| | - Sabah Abdelhady Mahmoud
- Department of Biochemistry, Faculty of Medicine, Alexandria University, Champollion street،, Al Mesallah Sharq, Al Attarin, Alexandria, Alexandria Governorate, 21568, Egypt
| | - Yasmine Youssri Gaweesh
- Department of Oral Diagnosis, Oral Medicine, Periodontology and Oral Radiology, Faculty of Dentistry, Alexandria University, Champollion St., Azarita, Alexandria Governorate, 21527, Egypt
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Dominguez A. Is it possible to anchor a tooth with photobiomodulation? World J Clin Cases 2024; 12:872-874. [PMID: 38414606 PMCID: PMC10895639 DOI: 10.12998/wjcc.v12.i5.872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/04/2024] [Accepted: 01/22/2024] [Indexed: 01/31/2024] Open
Abstract
During orthodontic treatment, we can achieve differential movements by using photobiomodulation (PBM) as an adjuvant before applying force. We can expect a greater bone density that initially resists movement while applying PBM to the other teeth to achieve an accelerating effect. The proposed protocol is to use an 810 nm laser at 0.1W power, applying between 4 and 6J per tooth for 22 s on the vestibular and lingual root surfaces, following the axial axis of the tooth. The energy density depends on the tip selected in the instrument. Normal bone remodeling cannot be avoided by applying high doses of PBM. PBM should be applied before orthodontic force to reduce tooth movement. In addition, PBM can be used during force application to teeth that require acceleration to achieve differential movement in orthodontic treatments. The protocol is the same in both scenarios.
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Affiliation(s)
- Angela Dominguez
- Department of Orthodontics, Faculty of Dentistry, Benemerita Universidad Autónoma de Puebla, Zaragoza de Puebla Calle 4 Sur 104, Puebla, Mexico
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Zhang ZH, Wu TY, Ju C, Zuo XS, Wang XK, Ma YG, Luo L, Zhu ZJ, Song ZW, Yao Z, Zhou J, Wang Z, Hu XY. Photobiomodulation Increases M2-Type Polarization of Macrophages by Inhibiting Versican Production After Spinal Cord Injury. Mol Neurobiol 2024:10.1007/s12035-024-03980-5. [PMID: 38363534 DOI: 10.1007/s12035-024-03980-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 01/21/2024] [Indexed: 02/17/2024]
Abstract
Spinal cord injury (SCI) is a catastrophic accidence with little effective treatment, and inflammation played an important role in that. Previous studies showed photobiomodulation (PBM) could effectively downregulate the process of inflammation with modification of macrophage polarization after SCI; however, the potential mechanism behind that is still unclear. In the presented study, we aimed to investigate the effect of PBM on the expression level of versican, a matrix molecular believed to be associated with inflammation, and tried to find the mechanism on how that could regulate the inflammation process. Using immunofluorescence technique and western blot, we found the expression level of versican is increased after injury and markedly downregulated by irradiation treatment. Using virus intrathecal injection, we found the knock-down of versican could produce the effect similar to that of PBM and might have an effect on inflammation and macrophage polarization after SCI. To further verify the deduction, we peptide the supernatant of astrocytes to induce M0, M1, and M2 macrophages. We found that the versican produced by astrocytes might have a role on the promotion of M2 macrophages to inflammatory polarization. Finally, we investigated the potential pathway in the regulation of M2 polarization with the induction of versican. This study tried to give an interpretation on the mechanism of inflammation inhibition for PBM in the perspective of matrix regulation. Our results might provide light on the inflammation regulation after SCI.
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Affiliation(s)
- Zhi-Hao Zhang
- General Hospital of Northern Theater Command, Shenyang, 110000, Liaoning Province, China
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Ting-Yu Wu
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Cheng Ju
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Xiao-Shuang Zuo
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Xuan-Kang Wang
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Yang-Guang Ma
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Liang Luo
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Zhi-Jie Zhu
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Zhi-Wen Song
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Zhou Yao
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Jie Zhou
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China
| | - Zhe Wang
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China.
| | - Xue-Yu Hu
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi Province, China.
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Farias TG, Rodrigues JA, Dos Santos MS, Mencalha AL, de Souza da Fonseca A. Effects of low‑power red laser and blue LED on mRNA levels from DNA repair genes in human breast cancer cells. Lasers Med Sci 2024; 39:56. [PMID: 38329547 DOI: 10.1007/s10103-024-04001-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/19/2024] [Indexed: 02/09/2024]
Abstract
Photobiomodulation (PBM) induced by non-ionizing radiations emitted from low-power lasers and light-emitting diodes (LEDs) has been used for various therapeutic purposes due to its molecular, cellular, and systemic effects. At the molecular level, experimental data have suggested that PBM modulates base excision repair (BER), which is responsible for restoring DNA damage. There is a relationship between the misfunction of the BER DNA repair pathway and the development of tumors, including breast cancer. However, the effects of PBM on cancer cells have been controversial. Breast cancer (BC) is the main public health problem in the world and is the most diagnosed type of cancer among women worldwide. Therefore, the evaluation of new strategies, such as PBM, could increase knowledge about BC and improve therapies against BC. Thus, this work aims to evaluate the effects of low-power red laser (658 nm) and blue LED (470 nm) on the mRNA levels from BER genes in human breast cancer cells. MCF-7 and MDA-MB-231 cells were irradiated with a low-power red laser (69 J cm-2, 0.77 W cm-2) and blue LED (482 J cm-2, 5.35 W cm-2), alone or in combination, and the relative mRNA levels of the APTX, PolB, and PCNA genes were assessed by reverse transcription-quantitative polymerase chain reaction. The results suggested that exposure to low-power red laser and blue LED decreased the mRNA levels from APTX, PolB, and PCNA genes in human breast cancer cells. Our research shows that photobiomodulation induced by low-power red laser and blue LED decreases the mRNA levels of repair genes from the base excision repair pathway in MCF-7 and MDA-MB-231 cells.
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Affiliation(s)
- Thayssa Gomes Farias
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Vila Isabel, Boulevard 28 de Setembro, 87, Rio de Janeiro, 20551030, Brazil.
| | - Juliana Alves Rodrigues
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Vila Isabel, Boulevard 28 de Setembro, 87, Rio de Janeiro, 20551030, Brazil
| | - Márcia Soares Dos Santos
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Vila Isabel, Boulevard 28 de Setembro, 87, Rio de Janeiro, 20551030, Brazil
| | - Andre Luiz Mencalha
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Vila Isabel, Boulevard 28 de Setembro, 87, Rio de Janeiro, 20551030, Brazil
| | - Adenilson de Souza da Fonseca
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Vila Isabel, Boulevard 28 de Setembro, 87, Rio de Janeiro, 20551030, Brazil
- Departamento de Ciências Fisiológicas, Instituto Biomédico, Universidade Federal do Estado do Rio de Janeiro, Rua Frei Caneca, 94, Rio de Janeiro, 20211040, Brazil
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Ran C, Pu K. Molecularly generated light and its biomedical applications. Angew Chem Int Ed Engl 2024; 63:e202314468. [PMID: 37955419 DOI: 10.1002/anie.202314468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/01/2023] [Accepted: 11/10/2023] [Indexed: 11/14/2023]
Abstract
Molecularly generated light, referred to here as "molecular light", mainly includes bioluminescence, chemiluminescence, and Cerenkov luminescence. Molecular light possesses unique dual features of being both a molecule and a source of light. Its molecular nature enables it to be delivered as molecules to regions deep within the body, overcoming the limitations of natural sunlight and physically generated light sources like lasers and LEDs. Simultaneously, its light properties make it valuable for applications such as imaging, photodynamic therapy, photo-oxidative therapy, and photobiomodulation. In this review article, we provide an updated overview of the diverse applications of molecular light and discuss the strengths and weaknesses of molecular light across various domains. Lastly, we present forward-looking perspectives on the potential of molecular light in the realms of molecular imaging, photobiological mechanisms, therapeutic applications, and photobiomodulation. While some of these perspectives may be considered bold and contentious, our intent is to inspire further innovations in the field of molecular light applications.
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Affiliation(s)
- Chongzhao Ran
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02129, USA
| | - Kanyi Pu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 637459, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, 308232, Singapore, Singapore
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Ahmed R, Hamdy O, Elattar S, Soliman AA. Improving human sperm motility via red and near-infrared laser irradiation: in-vitro study. Photochem Photobiol Sci 2024; 23:377-385. [PMID: 38280133 DOI: 10.1007/s43630-023-00525-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/16/2023] [Indexed: 01/29/2024]
Abstract
Improved sperm motility is necessary for successful sperm passage through the female genital system, efficacious fertilization, and a greater probability of pregnancy. By stimulating the mitochondrial respiratory chain, low-level laser photobiomodulation has been shown to increase sperm motility and velocity. The respiratory chain in mitochondria is the primary site of action for cytochrome c oxidase because it can absorb light in the visible and infrared ranges. The present study aimed to investigate the effects of red laser 650 nm, near infrared laser (NIR) 980 nm, and combination of both on human spermatozoa motility and DNA integrity at different doses. An in-vitro controlled trial was performed in Al Zahraa university hospital laboratory using thirty fresh human semen specimens. Samples were exposed to red laser 650 nm, near infrared laser (NIR) 980 nm, and combination of both for various irradiation times. Sperm motility for the test and control aliquots was assessed as recommended in the manual of WHO-2021. Sperm chromatin integrity was evaluated using the Sperm Chromatin Structure Assay. Results revealed almost 70%, 80% and 100% increase in the total motility after 3 min of the 650-nm, 980-nm and the combined laser irradiation, respectively. Additionally, the Sperm Chromatin Dispersion assay was carried out on sperm heads utilizing human sperm DNA fragmentation, demonstrating that none of the three laser types had any discernible effects.
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Affiliation(s)
- Rasha Ahmed
- Urology Department, Faculty of Medicine for Girls, Al Azhar University, Cairo, Egypt
| | - Omnia Hamdy
- Engineering Applications of Lasers Department, National Institute of Laser Enhanced Sciences, Cairo University, Giza, Egypt.
| | - Shaimaa Elattar
- Clinical Pathology Department, Faculty of Medicine for Girls, Al Azhar University, Cairo, Egypt
| | - Amany Ahmed Soliman
- Urology Department, Faculty of Medicine for Girls, Al Azhar University, Cairo, Egypt
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Mathioudaki E, Rallis M, Politopoulos K, Alexandratou E. Photobiomodulation and Wound Healing: Low-Level Laser Therapy at 661 nm in a Scratch Assay Keratinocyte Model. Ann Biomed Eng 2024; 52:376-385. [PMID: 37851144 PMCID: PMC10808316 DOI: 10.1007/s10439-023-03384-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 10/09/2023] [Indexed: 10/19/2023]
Abstract
This study aims to investigate the effectiveness of low power red light (661 nm) in accelerating the wound healing process of an in vitro scratch assay model of keratinocytes. Furthermore, the study aims to clarify the role of light irradiation parameters, optimize them and gain additional insight into the mechanisms of wound closure as a result of photobiomodulation. Wound healing was studied using scratch assay model of NCTC 2544 keratinocytes. Cells were irradiated with a laser at various power densities and times. Images were acquired at 0, 24, 48 and 72 h following the laser treatment. Cellular proliferation was studied by MTT. ROS were studied at 0 and 24 h by fluorescence microscopy. Image analysis was used to determine the wound closure rates and quantify ROS. The energy range of 0.18-7.2 J/cm2 was not phototoxic, increased cell viability and promoted wound healing. Power and irradiation time proved to be more important than energy. The results indicated the existence of two thresholds in both power and irradiation time that need to be overcome to improve wound healing. An increase in ROS production was observed at 0 h only in the group with the lowest healing rate. This early response seemed to block proliferation and finally wound healing. Low level laser light at 661 nm enhanced both proliferation and migration in keratinocytes, providing evidence that it could possibly stimulate wound healing in vivo. The observed results are dependent on irradiance and irradiation time rather than energy dose in total.
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Affiliation(s)
- Evdoxia Mathioudaki
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780, Athens, Greece
- Division of Pharmaceutical Technology, School of Pharmacy, National and Kapodistrian University of Athens, Panepistimioupoli, Zografou Campus, 15771, Athens, Greece
| | - Michail Rallis
- Division of Pharmaceutical Technology, School of Pharmacy, National and Kapodistrian University of Athens, Panepistimioupoli, Zografou Campus, 15771, Athens, Greece
| | - Konstantinos Politopoulos
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780, Athens, Greece
| | - Eleni Alexandratou
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780, Athens, Greece.
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Ribeiro M, Santos KC, Macedo MR, de Souza GA, Neto FIDA, Araujo GHM, Cavalcante DR, Costa FF, de Sá Ferreira G, Peixoto LA, de Miranda Moraes J, Vulcani VAS. Use of adipose derived stem cells accelerates the healing process in third-degree burns. Burns 2024; 50:132-145. [PMID: 37741785 DOI: 10.1016/j.burns.2023.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/25/2023] [Accepted: 08/20/2023] [Indexed: 09/25/2023]
Abstract
INTRODUCTION Burns are defined as a traumatic injury, usually of thermal origin, that affects the epithelial and adjacent tissue and is classified according to the depth reached. Tissue repair involved in this type of injury is often a challenge both due to its severity and the multiplicity of complications. Regenerative medicine has focused on the use of low-level laser photobiomodulation therapy (LLLT) and adipose-derived stem cells (ADSC), especially in the early stages of the process, to promote better healing and shorten repair time. Therefore, aim of this study was to evaluate the action of LLLT (660 nm) and ADSC in the repair process of burned skin tissue and investigate the association of the techniques (LLLT and ADSC). MATERIALS AND METHODS An in vivo study was carried out using 96 rats (Wister) with a scald burn model at a temperature of 95ºC, exposing the animal's back for 14 s. Animals were randomized into seven groups and three periods, five, 14 and 21 days. The groups included GC: Control group, ADSC-: Group treated with CD49d negative cells, ADSC+ : Group treated with positive CD49d cells, CULT: Group treated with conventional isolation cells, LLLT: Group treated only with LLLT Low Power Laser, ADSC-LLLT: Group treated with CD49d negative cells and LLLT. ADSC+LLLT: Group treated with positive CD49d cells and LLLT. The groups treated with LLLT (660 nm; 5 J/cm2) received irradiation three times a week, on alternate days for five, 14 and 21 days, according to the time of biopsy. ADSC-treated groups received one to three applications of the cells in a total volume of 1000 μL starting soon after the surgical debridement of the burn. Photographic monitoring was carried out at 5, 14 and 21 days after the beginning of the experiment to assess the degree of lesion contraction. Macroscopic, morphometric and histopathological analyzes were performed. RESULTS We showed significant re-epithelialization as well as an improvement in the healing process in the ADSC+, LLLT and ADSC+LLLT groups. We observed effects in the reduction of the inflammatory phase, increase in angiogenesis, decrease in oedema, greater collagen deposition, and better organization of the extracellular matrix compared to the other treatments. Moreover, the immunomagnetic separation of ADSC cells through the expression of the CD49d protein proved to be a useful means to obtain a more homogeneous population of cells with a role in tissue regeneration compared to the ADSC- and CULT groups. CONCLUSION In conclusion, the association of ADSC+ with LLLT was effective in accelerating the burn repair process, stimulating cell proliferation and formation of more normal skin tissue.
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Affiliation(s)
- Maisa Ribeiro
- Medicine Course, University Center of Mineiros, Mineiros, Goiás, Brazil; School of Veterinary and Zootechnics, Federal University of Goiás, Goiânia, Goiás, Brazil.
| | | | - Mathias Rezende Macedo
- Medicine Course, Health Sciences Academic Unit, Federal University of Jataí, Jataí, Goiás, Brazil
| | | | | | | | | | - Flavia Ferreira Costa
- Medicine Course, Health Sciences Academic Unit, Federal University of Jataí, Jataí, Goiás, Brazil
| | - Gabriel de Sá Ferreira
- Medicine Course, Health Sciences Academic Unit, Federal University of Jataí, Jataí, Goiás, Brazil
| | - Larissa Alves Peixoto
- Medicine Course, Health Sciences Academic Unit, Federal University of Jataí, Jataí, Goiás, Brazil
| | - Júlia de Miranda Moraes
- Medicine Course, Health Sciences Academic Unit, Federal University of Jataí, Jataí, Goiás, Brazil
| | - Valcinir Aloísio Scalla Vulcani
- School of Veterinary and Zootechnics, Federal University of Goiás, Goiânia, Goiás, Brazil; Veterinary Medicine Course, Agricultural Sciences Academic Unit, Federal University of Jataí, Jataí, Goiás, Brazil
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