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Selestin Raja I, Kim C, Oh N, Park JH, Hong SW, Kang MS, Mao C, Han DW. Tailoring photobiomodulation to enhance tissue regeneration. Biomaterials 2024; 309:122623. [PMID: 38797121 DOI: 10.1016/j.biomaterials.2024.122623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 04/25/2024] [Accepted: 05/19/2024] [Indexed: 05/29/2024]
Abstract
Photobiomodulation (PBM), the use of biocompatible tissue-penetrating light to interact with intracellular chromophores to modulate the fates of cells and tissues, has emerged as a promising non-invasive approach to enhancing tissue regeneration. Unlike photodynamic or photothermal therapies that require the use of photothermal agents or photosensitizers, PBM treatment does not need external agents. With its non-harmful nature, PBM has demonstrated efficacy in enhancing molecular secretions and cellular functions relevant to tissue regeneration. The utilization of low-level light from various sources in PBM targets cytochrome c oxidase, leading to increased synthesis of adenosine triphosphate, induction of growth factor secretion, activation of signaling pathways, and promotion of direct or indirect gene expression. When integrated with stem cell populations, bioactive molecules or nanoparticles, or biomaterial scaffolds, PBM proves effective in significantly improving tissue regeneration. This review consolidates findings from in vitro, in vivo, and human clinical outcomes of both PBM alone and PBM-combined therapies in tissue regeneration applications. It encompasses the background of PBM invention, optimization of PBM parameters (such as wavelength, irradiation, and exposure time), and understanding of the mechanisms for PBM to enhance tissue regeneration. The comprehensive exploration concludes with insights into future directions and perspectives for the tissue regeneration applications of PBM.
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Affiliation(s)
| | - Chuntae Kim
- Institute of Nano-Bio Convergence, Pusan National University, Busan, 46241, Republic of Korea; Center for Biomaterials Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Nuri Oh
- Department of Chemistry and Biology, Korea Science Academy of KAIST, Busan, 47162, Republic of Korea
| | - Ji-Ho Park
- Department of Bio and Brain Engineering and KAIST Institute for Health Science and Technology, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Moon Sung Kang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Chuanbin Mao
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Sha Tin, Hong Kong SAR, China.
| | - Dong-Wook Han
- Institute of Nano-Bio Convergence, Pusan National University, Busan, 46241, Republic of Korea; Department of Cogno-Mechatronics Engineering, College of Nanoscience & Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea.
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Hu Q, Liu X, Zhao Z, Guo Z, Liu Q, Liu N. Clinical efficacy and pain control of diode laser-assisted flap surgery in the treatment of chronic periodontitis:A systematic review and meta-analysis. Heliyon 2024; 10:e33510. [PMID: 39040384 PMCID: PMC11260959 DOI: 10.1016/j.heliyon.2024.e33510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 06/12/2024] [Accepted: 06/21/2024] [Indexed: 07/24/2024] Open
Abstract
Objective To assess the diode laser-assisted periodontal flap surgery's clinical effectiveness and postoperative pain management in treating chronic periodontitis, and to offer evidence-based medical justification for the procedure's clinical use. Data sources and study selection In this study, a computer combined with manual search was used to search for articles on diode laser-assisted periodontal flap surgery for the treatment of chronic periodontitis published from the establishment of the database to September 2023. The databases searched included China Academic Journal Full Text Database (CNKI), China Biomedical Literature Database (CBM), Chinese Science and Technology Journal Database (VIP), Wanfang Database, PubMed, Web of science, Cochrane Library, Embase, and Scopus. Two researchers independently performed the screening and study selection, following the inclusion and exclusion standards to extract basic information and required data. Meta-analysis of the included literature was performed using Revman V5.4 software. Result Thirteen articles were analyzed. Meta-analysis showed that the use of the diode laser was effective in reducing patients' probing pocket depth (PPD) at 3 and 6 months postoperatively (3 months: MD = -0.46, 95 % CI = [-0.89, -0.03], P = 0.04; 6 months: MD = -0.35, 95 % CI = [-0.63, -0.06], P = 0.02), was able to effectively improve 3 month clinical attachment level (CAL) (MD = -0.36, 95 % CI = [-0.66, -0.06], P = 0.02), and was able to promote wound healing and reduce patients' early postoperative pain (MD = 0.67, 95 % CI = [0.01, 1.32], P = 0.05; MD = -1.67, 95 % CI = [-2.23, -1.00], and P < 0. 001), while for gingival index (GI), the use of diode laser did not have a significant effect. Conclusions The available evidence suggests that the use of a diode laser adjunct is effective in reducing PPD, improving CAL, promoting wound healing, and reducing early postoperative pain in patients compared with flap application alone; however, for GI, diode lasers did not show any improvements. Clinical significance Periodontal flap surgery fails to eliminate microorganisms from the soft tissue wall, potentially leading to recolonization, reinfection, and accompanying side effects such as pain and swelling. The use of a diode laser reduces PPD, improves CAL, and relieves early postoperative pain.
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Affiliation(s)
- Qiaoyu Hu
- Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Xuanning Liu
- Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Zirui Zhao
- Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Zhijiao Guo
- Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Qing Liu
- Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Na Liu
- Department of Preventive Dentistry, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, 050017, PR China
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Abdulrashid NA, Ali OI, Elsharkawy MA. Effect of photobiomodulation therapy on headache, and fatigue in patients with chronic rhinosinusitis: a randomized controlled study. Lasers Med Sci 2024; 39:62. [PMID: 38358423 DOI: 10.1007/s10103-024-04011-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 02/02/2024] [Indexed: 02/16/2024]
Abstract
Chronic rhinosinusitis (CRS) is a debilitating disease that resists medical treatment. Photobiomodulation therapy is one of the promising treatment modalities for CRS. The purpose is to investigate the effect of photobiomodulation therapy on headache, fatigue, sinus opacification, and ostiomeatal complex obstruction in patients with CRS. Thirty-one patients with CRS were randomly divided into photobiomodulation therapy and control groups. The photobiomodulation therapy group received photobiomodulation therapy (2.5 J, frequency 9.12 Hz, and 904 nm for 10 min for 12 sessions) on eight rhinosinusitis sites, and the control group received a sham laser. Headache, fatigue, and sinus opacification outcomes were measured before and after treatment. There was a significant improvement in headache, fatigue, and sinus opacification in the photobiomodulation therapy group in comparison with the control group (p < 0.05). Photobiomodulation therapy is an effective physical therapy treatment modality for the management of CRS.Clinical trial registry: NCT05861817.
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Affiliation(s)
- Nisreen Afify Abdulrashid
- Department of Physical Therapy for Surgery, Faculty of Physical Therapy, Cairo University, Giza, Egypt
| | - Olfat Ibrahim Ali
- Physical Therapy Program, Batterjee Medical College, Jeddah, 21442, Saudi Arabia.
- Basic Science for Physical Therapy, Faculty of Physical Therapy, Cairo University, Giza, Egypt.
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Fantaguzzi F, Tombolini B, Servillo A, Zucchiatti I, Sacconi R, Bandello F, Querques G. Shedding Light on Photobiomodulation Therapy for Age-Related Macular Degeneration: A Narrative Review. Ophthalmol Ther 2023; 12:2903-2915. [PMID: 37768527 PMCID: PMC10640464 DOI: 10.1007/s40123-023-00812-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Photobiomodulation (PBM) relies on the pathophysiological mechanism whereby red to near-infrared light can target mitochondrial activity and promote ATP synthesis. Preclinical and clinical studies have shown promising results in treating intermediate age-related macular degeneration (AMD), since PBM can produce photochemical reactions in endogenous retinal chromophores. Currently, PBM is approved by the Food and Drug Administration and by the European Medicines Agency for the treatment of intermediate AMD. This narrative review aimed to evaluate the available evidence on the effectiveness and safety of PBM in treating intermediate AMD. METHODS A comprehensive search was conducted using the PubMed database, employing the keywords "photobiomodulation" and "age-related macular degeneration." All English-language studies published up to June 2023 were reviewed, and the search was expanded to include relevant references from selected articles. The included publications were analyzed for this review. RESULTS The available studies on PBM in AMD demonstrated promising but inconsistent results. PBM showed potential in improving best-corrected visual acuity (BCVA) and contrast sensitivity (CS) in patients with AMD. Some studies also suggested a reduction in AMD lesions, such as drusen volume. However, the long-term efficacy and optimal treatment parameters of PBM in AMD remained to be fully determined due to the limitations of the available studies. These included variations in irradiation techniques, wavelengths, exposure times, and treatment sessions, making it challenging to generalize the effectiveness of PBM. Furthermore, the lack of accurate classification of AMD phenotypes in the available studies hindered the understanding of which phenotypes could truly benefit from this treatment. Finally, the strength of evidence varied among studies, with limited sample sizes, unpublished results, and only three randomized sham-controlled trials. CONCLUSIONS Currently, the effectiveness of PBM in promoting drusen resorption or preventing progression to advanced forms of AMD, as observed in the cited studies, remains uncertain.
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Affiliation(s)
- Federico Fantaguzzi
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
- Division of Head and Neck, Ophthalmology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Beatrice Tombolini
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
- Division of Head and Neck, Ophthalmology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Andrea Servillo
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
- Division of Head and Neck, Ophthalmology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Ilaria Zucchiatti
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
- Division of Head and Neck, Ophthalmology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Riccardo Sacconi
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
- Division of Head and Neck, Ophthalmology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Francesco Bandello
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
- Division of Head and Neck, Ophthalmology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Giuseppe Querques
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy.
- Division of Head and Neck, Ophthalmology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.
- Department of Ophthalmology, Vita-Salute San Raffaele University, Via Olgettina 60, 20132, Milan, Italy.
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Berisha-Muharremi V, Tahirbegolli B, Phypers R, Hanna R. Efficacy of Combined Photobiomodulation Therapy with Supplements versus Supplements alone in Restoring Thyroid Gland Homeostasis in Hashimoto Thyroiditis: A Clinical Feasibility Parallel Trial with 6-Months Follow-Up. J Pers Med 2023; 13:1274. [PMID: 37623524 PMCID: PMC10455109 DOI: 10.3390/jpm13081274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/16/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023] Open
Abstract
Hashimoto thyroiditis (HT) is a thyroid-specific autoimmune disorder, triggering hypothyroidism in a population with an adequate dietary intake. Despite the current conventional treatment focuses on the permanent replacement of levothyroxine (LT4) deficiency, it appears that thyroid autoimmunity remains the cause of persistent symptoms in patients with HT, even when they achieve to be euthyroid from a biochemical standpoint. Photobiomodulation (PBM) showed to be an effective therapy in the management of autoimmune diseases, but with limited evidence. Hence, our study was conducted to appraise the efficacy of PBM therapy with supplements in restoring thyroid gland homeostasis in patients with HT compared with supplements alone. Seventy-four female subjects aged between 20 and 50 years old were recruited and divided equally into two groups: PBM and supplements group (group 1); and supplements alone group (group 2). The PBM dosimetry and treatment protocols were as follows: wavelength, 820 nm; power output, 200 mW; continuous emission mode; irradiating time, 20 s per point; fluence, 32 J/cm2 per point; treatment frequency, twice a week (excluding weekends); and treatment duration, three consecutive weeks. Whereas, the supplements protocol for both groups was the same, as follows: subjects with a serum level of vitamin D3 <40 ng/dL, who received replacement according to their serum levels, and all the subjects had a daily intake of 100 µg of oral selenium. The biochemical (FT3, FT4, antiTPO and antiTG) and anthropometric measurements were evaluated. Our findings showed significant improvement in group 1 parameters (PBM+ supplements) compared with group 2 (supplements only) in terms of weight loss and reduction in the following parameters: BMI, hip and waist circumference, waist/hip ratio, TSH, antiTPO, antiTG and treatment dose of LT4 (p < 0.05). Our results, for the first time, demonstrated an efficacy of PBM delivered at a lower fluence with supplements in restoring thyroid function, anthropometric parameters and lifestyle factors in patients with HT. Hence, extensive studies with a longer follow-up period are warranted.
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Affiliation(s)
- Venera Berisha-Muharremi
- Faculty of Medicine, University of Prishtina, Bulevardi i Dëshmorëve nn, 10000 Prishtina, Kosovo;
- Poliklinika Endomedica, Muharrem Fejza Str. Nr. 84, 10000 Prishtina, Kosovo
| | - Bernard Tahirbegolli
- Department of Management of Health Institution and Services, Heimerer College, 10000 Prishtina, Kosovo;
- National Sports Medicine Centre, Lagjia e Spitalit nn, 10000 Prishtina, Kosovo
| | - Ruth Phypers
- Laser Medicine Centre, 10 Harley Street, London W1G 9PF, UK;
| | - Reem Hanna
- Department of Oral Surgery, King’s College Hospital NHS Foundation Trust, London SE5 9RS, UK
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Viale Benedetto XV, 16132 Genoa, Italy
- Department of Restorative Dental Sciences, UCL-Eastman Dental Institute, Faculty of Medical Sciences, Rockefeller, University College London, London WC1E 6DE, UK
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Park L, Kim HS, Jang W, Ji MK, Ryu JH, Cho H, Lim HP. Antibacterial Evaluation of Zirconia Coated with Plasma-Based Graphene Oxide with Photothermal Properties. Int J Mol Sci 2023; 24:ijms24108888. [PMID: 37240234 DOI: 10.3390/ijms24108888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/01/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
The alternative antibacterial treatment photothermal therapy (PTT) significantly affects oral microbiota inactivation. In this work, graphene with photothermal properties was coated on a zirconia surface using atmospheric pressure plasma, and then the antibacterial properties against oral bacteria were evaluated. For the graphene oxide coating on the zirconia specimens, an atmospheric pressure plasma generator (PGS-300, Expantech, Suwon, Republic of Korea) was used, and an Ar/CH4 gas mixture was coated on a zirconia specimen at a power of 240 W and a rate of 10 L/min. In the physiological property test, the surface properties were evaluated by measuring the surface shape of the zirconia specimen coated with graphene oxide, as well as the chemical composition and contact angle of the surface. In the biological experiment, the degree of adhesion of Streptococcus mutans (S. mutans) and Porphyromonas gingivalis (P. gingivalis) was determined by crystal violet assay and live/dead staining. All statistical analyzes were performed using SPSS 21.0 (SPSS Inc., Chicago, IL, USA). The group in which the zirconia specimen coated with graphene oxide was irradiated with near-infrared rays demonstrated a significant reduction in the adhesion of S. mutans and P. gingivalis compared with the group not irradiated. The oral microbiota inactivation was reduced by the photothermal effect on the zirconia coated with graphene oxide, exhibiting photothermal properties.
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Affiliation(s)
- Lydia Park
- Department of Prosthodontics, School of Dentistry, Chonnam National University, 33 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Hee-Seon Kim
- Department of Prosthodontics, School of Dentistry, Chonnam National University, 33 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Woohyung Jang
- Department of Prosthodontics, School of Dentistry, Chonnam National University, 33 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Min-Kyung Ji
- Dental 4D Research Center, Chonnam National University, 33 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Je-Hwang Ryu
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Hoonsung Cho
- School of Materials Science & Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Hyun-Pil Lim
- Department of Prosthodontics, School of Dentistry, Chonnam National University, 33 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
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Shabaan AA, Kassem I, Mahrous AI, Aboulmagd I, Badrah M, Attalla M, Refahee SM. Diode laser in management of loss of taste sensation in patients with post-COVID syndrome: a randomized clinical trial. BMC Oral Health 2023; 23:263. [PMID: 37149582 PMCID: PMC10163926 DOI: 10.1186/s12903-023-02952-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 04/06/2023] [Indexed: 05/08/2023] Open
Abstract
OBJECTIVE Loss of taste (ageusia) is a symptom observed following recovery from COVID-19 infection. The loss of taste and smell sensation may negatively affect patients' quality of life (QoL). The present study aimed to evaluate the effectiveness of the Diode Laser in managing loss of taste sensation in patients with post-COVID syndrome versus the placebo. MATERIAL AND METHOD The study sample was 36 patients who complained of persistent loss of taste sensation following COVID-19. The patients were randomly assigned to one of the two groups according to the received treatment: Group I (laser treatment) and Group II (light treatment), with each patient receiving a diode laser treatment or placebo from the same operator. Taste sensation was subjectively measured after treatment for four weeks. RESULTS The results demonstrated a significant difference between both groups regarding taste restoration after one month (p = 0.041), with Group II having a significantly higher percentage of cases 7 (38.9%) with partial taste restoration. In contrast, a significantly higher proportion of Group I 17 cases (94.4%) had complete taste restoration (p < 0.001). CONCLUSION The present study concluded that using a Diode laser 810 nm aided in a more rapid recovery from loss of taste dysfunction.
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Affiliation(s)
- Alshaimaa Ahmed Shabaan
- Oral & Maxillofacial Surgery Department, Faculty of Dentistry, Fayoum University, Fayoum, Egypt
| | - Islam Kassem
- Department of Maxillofacial Surgery, Al-Alamin Hospital, Ministry of Health, Al-Alamin, Egypt
| | - Aliaa Ibrahium Mahrous
- Fixed Prosthodontic Department, Faculty of Dentistry, Fayoum University, Fayoum, Egypt
- Fixed Prosthodontic Department, Faculty of Dentistry, October University for Modern Sciences and Arts, Giza, Egypt
| | - Inass Aboulmagd
- Oral & Maxillofacial Radiology Department, Faculty of Dentistry, Fayoum University, Fayoum, Egypt
| | - Mai Badrah
- Internal Medicine, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Mohamed Attalla
- Oral and Maxillofacial Department, IMAXFAX, Alexandria, Egypt
| | - Shaimaa Mohsen Refahee
- Oral & Maxillofacial Surgery Department, Faculty of Dentistry, Fayoum University, Fayoum, Egypt.
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Kohli A, Anehosur V, Radder K. Comparative Study of the Efficacy of Low-Level Laser Therapy and Dexamethasone in Reducing the Severity of Post-Operative Inflammatory Response Following Surgical Extraction of Mandibular Third Molars. J Maxillofac Oral Surg 2023; 22:165-171. [PMID: 36703670 PMCID: PMC9871140 DOI: 10.1007/s12663-021-01681-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 12/12/2021] [Indexed: 01/29/2023] Open
Abstract
Objectives To assesses the efficacy of low-level laser therapy (LLLT) over dexamethasone in reducing postoperative edema and trismus following surgical removal of mandibular third molars. Study design A single-center, parallel group, randomized, prospective, single-blind clinical trial on 50 patients between the age 18-40 years, requiring surgical extraction of mandibular third molars classified as mesioangular, class II and position B impactions, was selected for the study. The selected patients were randomly divided into two groups:Group 1, n = 25, Soft Tissue Diode laser was applied intra-orally and extra-orally at the insertion of the masseter.Group 2, n = 25, 8 mg of Dexamethasone was given intravenously preoperatively.Trismus and edema were calculated preoperatively and on the 1st and 5th postoperative day. The collected data were subjected to statistical analysis using student's t test. Results Trismus (4.61 ± 0.26 cm [p = 0.0001]) in the LLLT group was significantly less than the dexamethasone group (trismus: 3.82 ± 0.73 cm). Edema at different anatomic locations in the LLLT group was also significantly less than the dexamethasone group (Angle-tragus [p = 0.0008], angle-canthus [p = 0.0021], angle-ala [p = 0.0258], angle-commissure [p = 0.0168], angle-mentus [p = 0.0227]). Conclusion This study demonstrates that LLLT was beneficial in reduction in edema and trismus compared to dexamethasone following surgical extraction of third molars.
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Affiliation(s)
- Aakash Kohli
- Department of Dentistry, All India Institute of Medical Sciences, Jodhpur, India
| | - Venkatesh Anehosur
- Department-Oral & Maxillofacial Surgery, SDM Craniofacial Center, Dharwad, India
| | - Kiran Radder
- Department-Oral & Maxillofacial Surgery, SDM Craniofacial Center, Dharwad, India
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Kabir A, Sarkar A, Barui A. Acute and Chronic Wound Management: Assessment, Therapy and Monitoring Strategies. Regen Med 2023. [DOI: 10.1007/978-981-19-6008-6_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Momeni E, Kazemi F, Sanaei-Rad P. Extraoral low-level laser therapy can decrease pain but not edema and trismus after surgical extraction of impacted mandibular third molars: a randomized, placebo-controlled clinical trial. BMC Oral Health 2022; 22:417. [PMID: 36127651 PMCID: PMC9490913 DOI: 10.1186/s12903-022-02461-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 09/15/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND This study aimed to assess the effect of extraoral 940 nm low-level diode laser on pain, edema, and trismus following surgical extraction of impacted mandibular third molars. MATERIALS AND METHODS This split-mouth, randomized, placebo-controlled clinical trial evaluated 25 patients with bilaterally impacted mandibular third molars. One side of the jaw was randomly assigned to the laser and the other side to the control group. The laser quadrant received 940 nm diode laser irradiation (0.5 W, 10 J/cm2, continuous-wave mode, 20 s) at three points in the master muscle in contact mode immediately after surgical extraction of third molar. The third molar in the placebo quadrant was extracted after 2 weeks by the same surgeon using the same standard approach. The pain score was measured at 2 and 7 days postoperatively using a visual analog scale (VAS). To assess trismus, the distance between the incisal edges of the upper and lower central incisors was measured in maximum opening. To assess edema, the distance between the tragus and chin point was measured before and immediately after surgery and after 2 and 7 days. Data were analyzed using t-test, ANOVA, and Bonferroni test. RESULTS The mean pain score in the first 7 days was significantly lower in the laser group (P < 0.05). Edema and trismus were the same in both groups (P > 0.05). Number of analgesics taken was significantly lower in the laser group (P < 0.05). CONCLUSION Single-session irradiation of 940 nm diode laser can effectively decrease pain following third molar extraction surgery. TRIAL REGISTRATION NUMBER IRCT20141209020258N91 on 29/12/2018.
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Affiliation(s)
- Ehsan Momeni
- Deparment of Oral Medicine, School of Dentistry, Arak University of Medical Sciences, Arak, Iran
| | - Farahnaz Kazemi
- Deparment of Oral Medicine, School of Dentistry, Arak University of Medical Sciences, Arak, Iran
| | - Parisa Sanaei-Rad
- Deparment of Endodontics, School of Dentistry, Arak University of Medical Sciences, Arak, Iran.
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Hossein-Khannazer N, Kazem Arki M, Keramatinia L, Rezaei-Tavirani M. Low-Level Laser Therapy in the Treatment of Autoimmune Thyroiditis. J Lasers Med Sci 2022; 13:e34. [PMID: 36743139 PMCID: PMC9841386 DOI: 10.34172/jlms.2022.34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 07/18/2022] [Indexed: 01/27/2023]
Abstract
Introduction: Autoimmune thyroiditis (AIT) is an autoimmune disorder that is characterized by thyroid gland dysfunction. Low-level laser therapy (LLLT), as a safe and non-invasive intervention, has gained much attention in many clinical applications including pain relief, regenerative medicine, and autoimmune. Methods: In this review, we discuss the effect of LLLT on cellular responses and its application in the treatment of AIT. Such keywords as "low-level laser therapy", "photobiomodulation" and "autoimmune thyroiditis" were used to find studies related to laser therapy in AIT in Google Scholar, PubMed and Medline databases. Results: LLLT reduced thyroid gland inflammation and inhibited immune cell trafficking. LLLT modulated inflammatory responses and improved thyroid gland regeneration. Conclusion: Investigations indicated that besides current treatment strategies, LLLT could be a promising therapeutic approach for the treatment of AIT.
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Affiliation(s)
- Nikoo Hossein-Khannazer
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mandana Kazem Arki
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - liasghar Keramatinia
- Department of Social Medicine, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mostafa Rezaei-Tavirani
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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12
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Le HTT, Huynh NCN, Nguyen-Ho QA, Nguyen TT, Le SH, Nguyen LTB. Effect of Photobiomodulation Therapy on Reducing Acute Pain and Inflammation Following Surgical Removal of Impacted Mandibular Third Molars: A Randomized, Split-Mouth Clinical Trial. Photobiomodul Photomed Laser Surg 2022; 40:245-251. [DOI: 10.1089/photob.2021.0110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ha Thanh-Thai Le
- Department of Oral Surgery, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Nam Cong-Nhat Huynh
- Department of Dental Basic Sciences, and Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Quynh-Anh Nguyen-Ho
- Department of Dental Basic Sciences, and Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Thuy Thu Nguyen
- Department of Periodontology, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Son Hoang Le
- Department of Oral Surgery, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Ly Thi-Bich Nguyen
- Department of Oral Surgery, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
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13
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de Freitas Dutra Júnior E, Hidd SMCM, Amaral MM, Filho ALMM, Assis L, Ferreira RS, Barraviera B, Martignago CCS, Figueredo-Silva J, de Oliveira RA, Tim CR. Treatment of partial injury of the calcaneus tendon with heterologous fibrin biopolymer and/or photobiomodulation in rats. Lasers Med Sci 2022; 37:971-981. [PMID: 34041619 DOI: 10.1007/s10103-021-03341-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 05/09/2021] [Indexed: 10/21/2022]
Abstract
The present study aimed to evaluate the new heterologous fibrin biopolymer associated, or not, with photobiomodulation therapy for application in tendon injuries, considered a serious and common orthopedic problem. Thus, 84 Rattus norvegicus had partial transection of the calcaneus tendon (PTCT) and were randomly divided into: control (CG); heterologous fibrin biopolymer (HFB); photobiomodulation (PBM); heterologous fibrin biopolymer + photobiomodulation (HFB + PBM). The animals received HFB immediately after PTCT, while PBM (660 nm, 40 mW, 0.23 J) started 24 h post injury and followed every 24 h for 7, 14, and 21 days. The results of the edema volume showed that after 24 h of PTCT, there was no statistical difference among the groups. After 7, 14, and 21 days, it was observed that the treatment groups were effective in reducing edema when compared to the control. The HFB had the highest edema volume reduction after 21 days of treatment. The treatment groups did not induce tissue necrosis or infections on the histopathological analysis. Tenocyte proliferation, granulation tissue, and collagen formation were observed in the PTCT area in the HFB and HFB + PBM groups, which culminated a better repair process when compared to the CG in the 3 experimental periods. Interestingly, the PBM group revealed, in histological analysis, major tendon injury after 7 days; however, in the periods of 14 and 21 days, the PBM had a better repair process compared to the CG. In the quantification of collagen, there was no statistical difference between the groups in the 3 experimental periods. The findings suggest that the HFB and PBM treatments, isolated or associated, were effective in reducing the volume of the edema, stimulating the repair process. However, the use of HFB alone was more effective in promoting the tendon repair process. Thus, the present study consolidates previous studies of tendon repair with this new HFB. Future clinical trials will be needed to validate this proposal.
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Affiliation(s)
- Enéas de Freitas Dutra Júnior
- Department of Biomedical Engineering, Instituto Científico E Tecnológico, University Brazil, Carolina FonsecaSão Paulo, 235, Brazil
| | | | - Marcello Magri Amaral
- Department of Biomedical Engineering, Instituto Científico E Tecnológico, University Brazil, Carolina FonsecaSão Paulo, 235, Brazil
| | | | - Livia Assis
- Department of Biomedical Engineering, Instituto Científico E Tecnológico, University Brazil, Carolina FonsecaSão Paulo, 235, Brazil
| | - Rui Seabra Ferreira
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (UNESP - Univ Estadual Paulista), Botucatu, São Paulo, Brazil
| | - Benedito Barraviera
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (UNESP - Univ Estadual Paulista), Botucatu, São Paulo, Brazil
| | | | | | - Rauirys Alencar de Oliveira
- Department of Health Sciences, Piauí State University (UESPI), Teresina, PI, Brazil
- Department of Physiotherapy, Faculdade Uninovafapi, Teresina, PI, Brazil
| | - Carla Roberta Tim
- Department of Biomedical Engineering, Instituto Científico E Tecnológico, University Brazil, Carolina FonsecaSão Paulo, 235, Brazil.
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14
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Treatment with Light-Emitting Diodes of Wavelength 863 nm Delays DMBA/TPA-Induced Skin Tumor Formation and Decreases Proinflammatory Cytokine Levels in ICR Mice. BIOMED RESEARCH INTERNATIONAL 2022; 2022:4400276. [PMID: 35252445 PMCID: PMC8890868 DOI: 10.1155/2022/4400276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 01/27/2022] [Indexed: 12/02/2022]
Abstract
The popularity of light/energy devices for cosmetic purposes (e.g., skin care) is increasing. However, the effects and underlying mechanisms remain poorly understood. Commencing in the 1960s, various studies have evaluated the beneficial effects of a light source on cells and tissues. The techniques evaluated include low-level light (laser) therapy and photobiomodulation (PBM). Most studies on PBM used red light sources, but, recently, many studies have employed near-infrared light sources including those of wavelength 800 nm. Here, we used a light-emitting diode (LED) array with a wavelength of 863 nm to treat DMBA/TPA-induced mouse skin tumors; treatment with the array delayed tumor development and reduced the levels of systemic inflammatory cytokines. These results suggest that light therapy could be beneficial. However, the effects were small. Further studies on different skin tumors using an optimized LED setup are required. Combination therapies (conventional methods and an LED array) may be useful.
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15
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Badıl Güloğlu S, Bilgilisoy Filiz M, Kılıç KK, Koldaş Doğan Ş, Toslak İE, Toraman NF. Treatment of carpal tunnel syndrome by low-level laser therapy versus corticosteroid injection: a randomized, prospective clinical study. Lasers Med Sci 2022; 37:2227-2237. [PMID: 35022874 DOI: 10.1007/s10103-021-03489-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 12/04/2021] [Indexed: 11/29/2022]
Abstract
To compare the effects of low level laser therapy (LLLT) and corticosteroid injection in patients with moderate carpal tunnel syndrome (CTS). Eighty-seven patients (143 wrists) with moderate CTS were randomized to the corticosteroid or LLLT groups. 40 mg of triamcinolone acetate solution was applied to carpal tunnel of 44 patients (74 wrist). LLLT was applied to 43 patients (70 wrist) five times a week, for a total of 15 sessions (fluence of 6 j/cm2 for 1 min per point at a wavelength of 830 nm). Outcome measures were numbness and pain, QuickDASH questionnaire, grasping tests, Tinel and Phalen tests, electrophysiological tests and MRI evaluations, which were tested at the baseline and 1st and 6th months after the treatment. Eighty patients (133 wrists) completed the study at the end of 6 months. VAS and Quick DASH scores were better in the corticosteroid group in the 1st month, but there were no significant differences between groups in the 6th month. Phalen and Tinel tests, strength tests, and motor distal latency improved significantly and similarly in both groups at the 1st and 6th months. Sensory distal latency and sensory nerve conduction velocity showed significant improvements in the 1st and 6th months only in the corticosteroid group. In both groups, median nerve intensity rate and palmary spring rate improved significantly after the treatment. Based on this study, corticosteroid injection and LLLT groups showed statistically significant difference at the 1st month (short-term), whereas there was no significant difference at the 6th month (intermediate-term).
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Affiliation(s)
- Sevtap Badıl Güloğlu
- Physical Medicine and Rehabilitation, Health Science University Antalya Training and Research Hospital, Antalya, Turkey.
| | - Meral Bilgilisoy Filiz
- Physical Medicine and Rehabilitation, Health Science University Antalya Training and Research Hospital, Antalya, Turkey
| | - Koray Kaya Kılıç
- Radiology, Health Science University Antalya Training and Research Hospital, Antalya, Turkey
| | - Şebnem Koldaş Doğan
- Physical Medicine and Rehabilitation, Health Science University Antalya Training and Research Hospital, Antalya, Turkey
| | - İclal Erdem Toslak
- Radiology, Health Science University Antalya Training and Research Hospital, Antalya, Turkey
| | - Naciye Füsun Toraman
- Physical Medicine and Rehabilitation, Health Science University Antalya Training and Research Hospital, Antalya, Turkey
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16
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Photobiomodulation effect in tumoral necrosis factor-alpha(TNF-α) on the viability of random skin flap in rats. Lasers Med Sci 2022; 37:1495-1501. [PMID: 35015175 DOI: 10.1007/s10103-021-03303-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 03/22/2021] [Indexed: 10/19/2022]
Abstract
The aim of this study was to investigate the effect of red laser (660 nm) photobiomodulation (PBM) with different energies on tumor necrosis factor-alpha(TNF-α) expression for random skin flap viability in rats. Twenty-four Wistar rats were divided into three groups: sham group (SG), PBM laser group with an energy dose of 0.29 J (0.29G), and PBM laser group with an energy dose of 7.30 J (7.30G). A cranially based dorsal skin flap measuring 10 × 4 cm was raised and a plastic barrier was placed between the flap and its bed. PBM was applied in 3 timepoints: in the immediate postoperative period, in the 1st and in the 2nd postoperative days; the animals were euthanized on the 7th postoperative day. The assessments included: TNF-α expression of 3 different flap areas (proximal, medial and distal), by immunohistochemistry; percentage of skin flap necrosis area, by the paper template method. The statistical analysis was performed through the Kruskal-Wallis and Mann-Whitney tests, the level of significance adopted was 5% (p < 0.05). TNF-α expression was significantly lower for 7.30G in the proximal area, reduced for SG in the medial point, and larger for 7.30G in the distal area. The percentage of flap necrosis area was significantly reduced for 7.30G. Higher energy doses are more efficacious than lower energy doses for modulating TNF-α expression. PBM with an energy dose of 7.30 J was effective in reducing the expression of TNF-α and increase skin flap viability.
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17
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Wang G, Yuan L, Zhang L, Qin M, Wang Y. Effect of Photobiomodulation on Periodontal Ligament Cells Under Inflamed and Nutrient-Deficient Conditions Simulating Damaged Cells of Avulsed Teeth: An In Vitro Study. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2021; 39:696-704. [PMID: 34705541 DOI: 10.1089/photob.2021.0045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Background: The prognosis of replanted teeth is depended on the vitality of periodontal ligament cells residual on the root surface. Photobiomodulation has photobiological effects that can promote cell vitality. The study aimed to explore the effect of photobiomodulation on the periodontal ligament cells under inflamed or starved conditions mimicking clinically damaged periodontal ligament cells of avulsed teeth and provide the adjuvant procedure for tooth replantation. Materials and methods: Normal, starved, or inflamed periodontal ligament cells were irradiated with an 808 nm laser at densities of 0, 1, 3, 5, or 10 J/cm2. The cell counting kit-8 (CCK-8) assay and scratch test were applied to determine the effects on the proliferation and migration of cells. Anti-inflammatory effects were assessed according to the mRNA expression of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6) measured by reverse-transcription polymerase chain reaction. Osteogenic capacity was evaluated by alkaline phosphatase (ALP) staining, ALP activity assay, Alizarin Red S staining, and ALP and osteocalcin (OCN) mRNA expression. Results: The CCK-8 assay and scratch test demonstrated that the 808 nm laser significantly promoted proliferation and migration of normal condition periodontal ligament cells at a density of 3 J/cm2 versus 5 J/cm2 under the starved and inflamed conditions. Moreover, the 808 nm laser had anti-inflammatory effects and promoted osteogenesis of periodontal ligament cells at 3 J/cm2 under normal conditions, while photobiomodulation at 5 J/cm2 upregulated the osteogenesis of periodontal ligament cells under starved and inflamed conditions. Conclusions: The photobiomodulation of 808 nm laser reduced inflammation and improved the proliferation, migration, and osteogenesis of normal, starved, and inflamed periodontal ligament cells. These effects required a higher energy density under starved or inflamed conditions compared with normal conditions. The photobiomodulation of 808 nm has a potential application in root surface treatment for replanted teeth.
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Affiliation(s)
- Guiyan Wang
- National Clinical Research Center for Oral Diseases, Beijing, PR China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, PR China.,Beijing Key Laboratory of Digital Stomatology, Beijing, PR China.,Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Lintian Yuan
- National Clinical Research Center for Oral Diseases, Beijing, PR China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, PR China.,Beijing Key Laboratory of Digital Stomatology, Beijing, PR China.,Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Ludan Zhang
- National Clinical Research Center for Oral Diseases, Beijing, PR China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, PR China.,Beijing Key Laboratory of Digital Stomatology, Beijing, PR China.,Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Man Qin
- National Clinical Research Center for Oral Diseases, Beijing, PR China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, PR China.,Beijing Key Laboratory of Digital Stomatology, Beijing, PR China.,Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, PR China
| | - Yuguang Wang
- National Clinical Research Center for Oral Diseases, Beijing, PR China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, PR China.,Beijing Key Laboratory of Digital Stomatology, Beijing, PR China.,Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing, PR China
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18
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Mazuqueli Pereira EDSB, Basting RT, Abdalla HB, Garcez AS, Napimoga MH, Clemente-Napimoga JT. Photobiomodulation inhibits inflammation in the temporomandibular joint of rats. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 222:112281. [PMID: 34388640 DOI: 10.1016/j.jphotobiol.2021.112281] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/30/2021] [Accepted: 08/03/2021] [Indexed: 02/07/2023]
Abstract
Photobiomodulation (PBM) has been applied as a non-invasive technique for treating temporomandibular joint symptoms, especially on painful condition's relief, however the anti-inflammatory mechanism underlying the effect of PBM remains uncertain. This study aims to evaluate the mechanisms of action of PBM (808 nm) in a carrageenan-induced inflammation on temporomandibular joint (TMJ) of rats. In this study male Wistar rats were pre-treated with irradiation of a low-power diode laser for 15 s on TMJ (infra-red 808 nm, 100 mW, 50 J/cm2 and 1.5 J) 15 min prior an injection in the temporomandibular joint of carrageenan (100 μg/TMJ). 1 h after the TMJ treatments, the rats were terminally anesthetized for joint cavity wash and periarticular tissues collect. Samples analysis demonstrated that PBM inhibit leukocytes chemotaxis in the TMJ and significantly reduces amounts of TNF-α, IL-1β and CINC-1. In addition, Western blotting analysis demonstrated that PBM significantly decreased the protein levels of P2X3 and P2X7 receptors in the periarticular tissues. On the other hand, PBM was able to increase protein level of IL-10 (anti-inflammatory cytokine). In summary, it is possible to suggest that PBM inhibit inflammatory chemotaxis, modulation the balance of the pro- and anti-inflammatory characteristics of inflammatory cells.
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Affiliation(s)
| | - Rosanna Tarkany Basting
- São Leopoldo Mandic Institute and Research Center, Laboratory of Neuroimmune Interface of Pain Research - Campinas, SP, Brazil
| | - Henrique Ballassini Abdalla
- São Leopoldo Mandic Institute and Research Center, Laboratory of Neuroimmune Interface of Pain Research - Campinas, SP, Brazil
| | - Aguinaldo Silva Garcez
- São Leopoldo Mandic Institute and Research Center, Laboratory of Neuroimmune Interface of Pain Research - Campinas, SP, Brazil
| | - Marcelo Henrique Napimoga
- São Leopoldo Mandic Institute and Research Center, Laboratory of Neuroimmune Interface of Pain Research - Campinas, SP, Brazil
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19
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Duarte de Oliveira FJ, Brasil GMLC, Araújo Soares GP, Fernandes Paiva DF, de Assis de Souza Júnior F. Use of low-level laser therapy to reduce postoperative pain, edema, and trismus following third molar surgery: A systematic review and meta-analysis. J Craniomaxillofac Surg 2021; 49:1088-1096. [PMID: 34217567 DOI: 10.1016/j.jcms.2021.06.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 05/16/2021] [Accepted: 06/15/2021] [Indexed: 10/21/2022] Open
Abstract
This Systematic Review and Meta-analysis was conducted with the following PICOS question: patients undergoing third molar surgery (P) can benefit from low-intensity laser therapy (I) as compared to other postoperative management (C) to reduce pain, edema, and trismus (O), evaluated in previous randomized clinical trials (S). Databases used were PubMed, SCOPUS, Web of Science, and Biblioteca Virtual em Saúde, screening for studies published between 2015 and 2020. The meta-analysis was based on the standardized mean difference (SMD), under a 95% confidence interval (CI). 246 studies were initially included, and after the screening of data, 10 studies were selected for the final sample. The qualitative analysis resulted in favorable results for pain and edema management in most studies, whereas trismus remained controversial. Meta-analysis resulted in (SMD, -0.53; 95% CI, -0.82,-0.24), (SMD, -0.60; 95% CI, -0.81,-0.39), and (SMD, -0.62; 95% CI, -2.63, 1.39) for pain, edema, and trismus, respectively, indicating statistical success on pain and edema reduction, but not for trismus. LLLT can act on reducing postoperative pain and edema following third molar surgery, whereas, trismus remains not significantly changed.
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20
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Comparison of effects of low-level laser therapy and extracorporeal shock wave therapy in calcaneal spur treatment: A prospective, randomized, clinical study. Turk J Phys Med Rehabil 2021; 67:218-224. [PMID: 34396073 PMCID: PMC8343161 DOI: 10.5606/tftrd.2021.5260] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 04/14/2020] [Indexed: 01/13/2023] Open
Abstract
Objectives
In this study, we aimed to evaluate and compare the efficacy of low-level laser therapy (LLLT) and extracorporeal shock wave therapy (ESWT) in the treatment of calcaneal spurs.
Patients and methods
A total of 62 patients (14 males, 48 females; mean age: 47.6±11.7 years; range, 18 to 70 years) who were diagnosed with calcaneal spurs based on clinical examination and plain radiography between April 2019 and September 2019 were included in this study. A total of 15 sessions of plantar fascia gastroc-soleus stretching exercises and cold pack treatments were given to both groups. The LLLT (904 nm wavelength, 3,000 Hz, 8 J/cm2 dose to the painful heel area and insertion of the plantar fascia on the medial calcaneal area, five points for a total of 5 min for three weeks) was applied to the first group (n=31), whereas ESWT (10 Hz, 2,000 shock waves with a 2.5 bar pressure into the areas of the painful heel, insertion of the plantar fascia on the medial calcaneal area) was applied the second group (n=31). All patients were evaluated using the Visual Analog Scale (VAS) and Foot Function Index (FFI) before and after treatment.
Results
In both groups, the median VAS and FFI scores after treatment showed a significant improvement, compared to pre-treatment scores (p=0.001). There was no significant difference between the groups in terms of the median post-treatment VAS scores (p>0.05). In the ESWT group, the median FFI pain and total scores after treatment were significantly lower than in the LLLT group (p=0.033). The change in the median FFI pain and total scores were significantly higher in the ESWT group (p=0.046).
Conclusion
Both treatment modalities are effective and not superior to each other in terms of disability and activity limitation reduction, although a greater improvement in the FFI pain and total scores can be achieved with the ESWT. Based on these findings, we recommend both non-invasive treatment methods to be used in the treatment of calcaneal spurs in the clinical practice.
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21
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Hartmann DD, Martins RP, Silva TCD, Stefanello ST, Courtes AA, Gonçalves DF, Furtado ABV, Duarte BSL, Signori LU, Soares FAA, Puntel GO. Oxidative stress is involved in LLLT mechanism of action on skin healing in rats. ACTA ACUST UNITED AC 2021; 54:e10293. [PMID: 33909854 PMCID: PMC8075128 DOI: 10.1590/1414-431x202010293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 01/21/2021] [Indexed: 01/24/2023]
Abstract
The skin injury healing process involves the main phases of homoeostasis, inflammation, proliferation, and remodeling. The present study aimed to analyze the effects of low-level laser therapy (LLLT) on hematological dynamics, oxidative stress markers, and its relation with tissue healing following skin injury. Wistar rats were divided into control, sham, skin injury, and skin injury LLLT. The biochemical and morphological analyses were performed in the inflammatory (1 and 3 days) and regenerative phases (7, 14, and 21 days) following injury. The skin injury was performed in the dorsal region, between the intrascapular lines, using a surgical punch. LLLT (Al-Ga-In-P, λ=660 nm, energy density of 20 J/cm2, 30 mW power, and a time of 40 s) was applied at the area immediately after injury and on every following day according to the experimental subgroups. LLLT maintained hematocrit and hemoglobin levels until the 3rd day of treatment. Surprisingly, LLLT increased total leukocytes levels compared to control until the 3rd day. The effects of LLLT on mitochondrial activity were demonstrated by the significant increase in MTT levels in both inflammatory and regenerative phases (from the 1st to the 7th day), but only when associated with skin injury. The results indicated that LLLT modulated the inflammatory response intensity and accelerated skin tissue healing by a mechanism that involved oxidative damage reduction mostly at early stages of skin healing (inflammatory phase).
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Affiliation(s)
- D D Hartmann
- Centro de Ciências Naturais e Exatas, Programa de Pós-Graduação em Ciências Biológicas e Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - R P Martins
- Centro de Ciências Naturais e Exatas, Programa de Pós-Graduação em Ciências Biológicas e Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - T C da Silva
- Centro de Ciências Naturais e Exatas, Programa de Pós-Graduação em Ciências Biológicas e Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - S T Stefanello
- Centro de Ciências Naturais e Exatas, Programa de Pós-Graduação em Ciências Biológicas e Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - A A Courtes
- Centro de Ciências Naturais e Exatas, Programa de Pós-Graduação em Ciências Biológicas e Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - D F Gonçalves
- Centro de Ciências Naturais e Exatas, Programa de Pós-Graduação em Ciências Biológicas e Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - A B V Furtado
- Centro de Ciências Naturais e Exatas, Programa de Pós-Graduação em Ciências Biológicas e Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - B S L Duarte
- Centro de Ciências da Saúde, Departamento de Fisioterapia, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - L U Signori
- Centro de Ciências da Saúde, Departamento de Fisioterapia, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - F A A Soares
- Centro de Ciências Naturais e Exatas, Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - G O Puntel
- Centro de Ciências da Saúde, Departamento de Morfologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
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22
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Mrasori S, Popovska M, Rusevska B, Shkreta M, Selani A, Bunjaku V. Effects of Low Level Laser Therapy (LLLT) on Serum Values of Interleukin 6 (IL-6) in Patients with Periodontitis and Type 2 Diabetes Mellitus (T2DM). Acta Inform Med 2021; 29:59-64. [PMID: 34012215 PMCID: PMC8116077 DOI: 10.5455/aim.2021.29.59-64] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/20/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND In patients with T2DM, the therapeutic effects of conservative treatment are quite limited, and there is a need for additional therapeutic procedures to achieve the desired satisfactory and solid effect. Low-level laser therapy (LLLT) has an anti-inflammatory effect, and is used to heal lesions. This mechanism is realized through inhibition of lipopolysaccharides (LPS), so it can be used in the treatment of periodontal disease in patients with diabetes. OBJECTIVE The aim of this study is to assess the effect of level laser therapy (LLLT) on serum IL-6 values in patients with periodontitis and T2DM. METHODS Patients at age between 35-60 years old, with chronic periodontitis (CH) where the clinical loss of attachment (CAL) was ≥4 mm therefore covering at least 50 % of affected teeth. In this study we included 80 patients, divided into two groups: 40 patients with type 2 diabetes mellitus (2TDM) treated with conservative periodontal treatment supplemented with laser therapy (LLLT), group A, and 40 patients with 2TDM, conservatively treated without LLLT. therapy i.e. group B. The laser light was applied to the gingiva in separate quadrants in 5 sessions for the next five days in a row. Blood samples were taken from all subjects at the first treatment, then in 6 weeks and 3 months after treatment, and interleukin 6 (IL-6) levels were measured. The blood samples in the test tubes remained for about 30 minutes and were then distributed in a biochemical laboratory, where they were centrifuged at 6,000 rpm for 10 minutes. The serum was separated from the test tube and transferred to the eppendorph. All serum samples were stored at -80 ° C until complete analysis and determination of IL-6, according to the standardized methodology. RESULTS In group A, on the first examination serum IL-6 levels varies in the interval 11.54 ± 1.11 pg / mL, after 6 weeks of therapy the values range between 11.26 ± 0.77 pg / mL, and after 3 months of therapy levels oscillate at intervals of 11.02 ± 0.67 pg / mL. In group B the findings are similar. At the first examination, the serum IL-6 values were 11.56 ± 0.81 pg / mL, after 6 weeks of therapy ranged from 11.59 ± 0.71 pg / mL, and after 3 months of therapy levels were recorded at intervals. 11.41 ± 0.78 pg /mL. The serum IL-6 value after 6 weeks of therapy in patients in group B for Z = -2.04 and p <0.05 (p = 0.04) was significantly higher than in patients in group A, while after 3 months of therapy in patients in group B for Z = -2.42 and p <0.05 (p = 0.02) is significantly higher than the value in patients in group A. CONCLUSION LLLT resulted in significantly reduced serum IL-6 values in patients with periodontitis and T2DM after 6 weeks and 3 months of therapy in which conservative treatment was supplemented with LLLT.
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Affiliation(s)
- Shefqet Mrasori
- ALMA MATER EUROPEA Campus College “ Rezonanca “Faculty of Dentistry, Pristina, Republic Kosovo
| | - Mirjana Popovska
- Department of Oral Disease and Periodontology, Faculty of Dentistry. University “St. Cyril and Method”, Skopje, Republic of North Macedonia
| | - Biljana Rusevska
- Periodontology and Oral Disease Clinic, University Dentistry Clinical Center, Skopje, Skopje, Republic of North Macedonia
| | - Mirsad Shkreta
- UBT - Higher Education Institution - Faculty of Dentistry, Pristina, Republic Kosovo
| | - Ardian Selani
- ALMA MATER EUROPEA Campus College “ Rezonanca “Faculty of Dentistry, Pristina, Republic Kosovo
| | - Visar Bunjaku
- Department of Oral Disease and Periodontology, Faculty of Dentistry, UBT - Higher Education Institution, Pristina, Republic Kosovo
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Glass GE. Photobiomodulation: A review of the molecular evidence for low level light therapy. J Plast Reconstr Aesthet Surg 2020; 74:1050-1060. [PMID: 33436333 DOI: 10.1016/j.bjps.2020.12.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 11/18/2020] [Accepted: 12/19/2020] [Indexed: 12/22/2022]
Abstract
Light energy is harnessed for therapeutic use in a number of ways, most recently by way of photobiomodulation (PBM). This phenomenon is a cascade of physiological events induced by the nonthermal exposure of tissue to light at the near infrared end of the visible spectrum. Therapeutic PBM has become a highly commercialized interest, marketed for everything from facial rejuvenation to fat loss, and diode-based devices are popular in both the clinic setting and for use at home. The lack of regulatory standards makes it difficult to draw clear conclusions about efficacy and safety but it is crucial that we understand the theoretical basis for PBM, so that we can engage in an honest dialogue with our patients and design better clinical studies to put claims of efficacy to the test. This article presents a summary of the science of PBM and examines the differences between laser light, on which much of the preclinical evidence is based and light from diodes, which are typically used in a clinical setting.
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Affiliation(s)
- Graeme E Glass
- Department of Surgery, Sidra Medicine, Doha, Qatar; Chair, laser safety committee, Sidra Medicine, Doha, Qatar; Weill Cornell Medical College, New York and Qatar.
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Poli R, Parker S, Anagnostaki E, Mylona V, Lynch E, Grootveld M. Laser Analgesia Associated with Restorative Dental Care: A Systematic Review of the Rationale, Techniques, and Energy Dose Considerations. Dent J (Basel) 2020; 8:dj8040128. [PMID: 33198128 PMCID: PMC7712922 DOI: 10.3390/dj8040128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/30/2020] [Accepted: 11/10/2020] [Indexed: 12/17/2022] Open
Abstract
It is a common experience amongst laser dentists and patients that mid-IR wavelength application in cavity preparation may be achieved without causing any associated pain. The erbium family of lasers (Er,Cr:YSGG 2780 nm and Er:YAG 2940 nm) are frequently used without employing injectable local anesthesia as an adjunct: the phenomenon arising from the application of these devices is known as laser analgesia. This review seeks to apply a systematic approach to the examination of appropriate published studies but also to highlight the need for much more structured clinical investigations that consolidate photonic dose and methodology. A search of published data using PRISMA criteria was carried out to examine clinical trials into laser analgesia in conjunction with restorative dentistry, applying inclusion and exclusion criteria. From this, 10 published articles were selected for analysis. Suitability assessment was carried out, using a modified Cochrane risk of bias methodology. In 8/10 of the included studies, laser-induced analgesia is claimed to be better and effective, while in 2/10 of the studies, no difference was exhibited compared to the control group. Statistical analysis of three split mouth studies concluded that only one of these investigations reviewed demonstrated a significant analgesic effect for laser treatment while the other two did not support this observation. From this data, it is inconclusive to assess the predictability of laser analgesia in cavity preparation. A possible rationale and laser operating parametry has been discussed. Successful implementation of this treatment modality remains technique sensitive and subject to further investigation.
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Affiliation(s)
- Riccardo Poli
- Leicester School of Pharmacy, De Montfort University, Gateway House, Leicester LE1 9BH, UK; (S.P.); (E.A.); (V.M.); (E.L.); (M.G.)
- Correspondence:
| | - Steven Parker
- Leicester School of Pharmacy, De Montfort University, Gateway House, Leicester LE1 9BH, UK; (S.P.); (E.A.); (V.M.); (E.L.); (M.G.)
| | - Eugenia Anagnostaki
- Leicester School of Pharmacy, De Montfort University, Gateway House, Leicester LE1 9BH, UK; (S.P.); (E.A.); (V.M.); (E.L.); (M.G.)
| | - Valina Mylona
- Leicester School of Pharmacy, De Montfort University, Gateway House, Leicester LE1 9BH, UK; (S.P.); (E.A.); (V.M.); (E.L.); (M.G.)
| | - Edward Lynch
- Leicester School of Pharmacy, De Montfort University, Gateway House, Leicester LE1 9BH, UK; (S.P.); (E.A.); (V.M.); (E.L.); (M.G.)
- School of Dental Medicine, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
| | - Martin Grootveld
- Leicester School of Pharmacy, De Montfort University, Gateway House, Leicester LE1 9BH, UK; (S.P.); (E.A.); (V.M.); (E.L.); (M.G.)
- School of Dental Medicine, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
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Comparison of low-level laser treatment and extracorporeal shock wave therapy in subacromial impingement syndrome: a randomized, prospective clinical study. Lasers Med Sci 2020; 36:773-781. [PMID: 32638239 DOI: 10.1007/s10103-020-03093-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 06/28/2020] [Indexed: 10/23/2022]
Abstract
The aim of this study was to compare the efficacy of low-level laser treatment (LLLT) and extracorporeal shock wave therapy (ESWT) in the treatment of subacromial impingement syndrome (SIS). Seventy-one patients with subacromial impingement were randomly assigned to LLLT (n = 37) and ESWT (n = 34) groups. The patients received a total of 15 sessions of LLLT or once a week for 3 sessions of ESWT. All patients, before treatment, at the end of treatment, and 3 months after treatment, were evaluated with range of motion (ROM), visual analogue pain scale (VAS pain), Shoulder Pain and Disability Index (SPADI), Beck Depression and Anxiety Inventories, the Short Form Health Survey (SF-36), and Pittsburgh Sleep Quality Index (PSQI). In both groups, there was a significant improvement in all outcome measures (p < 0.05) except the mental health score in the LLLT group. ESWT group showed more improvements in terms of SPADI disability and total scores, PSQI, and physical-mental health scores at the end of treatment (p < 0.05). The improvement in VAS pain day and SPADI scores at the third month was significantly more evident in the ESWT group (p < 0.05). Both LLLT and ESWT treatments are effective in the treatment of SIS in the short-medium term and can be used in clinical practice. Future larger prospective clinical trials are needed to investigate the long-term efficacy and optimal treatment protocol of LLLT and ESWT in SIS.
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Karic V, Chandran R, Abrahamse H. Photobiomodulation and Stem Cell Therapy for Temporomandibular Joint Disc Disorders. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2020; 38:398-408. [PMID: 32486898 DOI: 10.1089/photob.2019.4790] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background: Temporomandibular disorder (TMD) refers to a group of disorders affecting the temporomandibular joint (TMJ) and its related muscles. The two commonly used treatment modalities for TMD are occlusal splint therapy and relaxation therapy. Neither comprises definitive treatment. Objective: The objective of this review was to report updated information on photobiomodulation and stem cells, as an alternative treatment for the degenerative TMJ disc as a part of TMJ disorders. Materials and methods: With only a few research studies reported till date, this review also proposes the mechanism of laser irradiation on inflammatory mediators to treat TMD. Results: Photobiomodulation of stem cells with and without scaffolds could be used indirectly or directly as modulation of degenerative changes of the TMJ disc. Conclusions: The need for a distinct shift of the research margin in this field of dentistry is evident, specifically regarding the application of photobiomodulation and stem cells for tissue engineering of the TMJ disc.
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Affiliation(s)
- Vesna Karic
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa.,Department of Prosthodontic and Oral Rehabilitation, and Laser Therapy in Dentistry Division, School of Oral Sciences, Health Sciences Faculty, WITS University, Johannesburg, South Africa
| | - Rahul Chandran
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
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Sakata S, Kunimatsu R, Tsuka Y, Nakatani A, Hiraki T, Gunji H, Hirose N, Yanoshita M, Putranti NAR, Tanimoto K. High-Frequency Near-Infrared Diode Laser Irradiation Attenuates IL-1β-Induced Expression of Inflammatory Cytokines and Matrix Metalloproteinases in Human Primary Chondrocytes. J Clin Med 2020; 9:jcm9030881. [PMID: 32213810 PMCID: PMC7141534 DOI: 10.3390/jcm9030881] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 03/15/2020] [Indexed: 01/15/2023] Open
Abstract
High-frequency near-infrared diode laser provides a high-peak output, low-heat accumulation, and efficient biostimulation. Although these characteristics are considered suitable for osteoarthritis (OA) treatment, the effect of high-frequency near-infrared diode laser irradiation in in vitro or in vivo OA models has not yet been reported. Therefore, we aimed to assess the biological effects of high-frequency near-infrared diode laser irradiation on IL-1β-induced chondrocyte inflammation in an in vitro OA model. Normal Human Articular Chondrocyte-Knee (NHAC-Kn) cells were stimulated with human recombinant IL-1β and irradiated with a high-frequency near-infrared diode laser (910 nm, 4 or 8 J/cm2). The mRNA and protein expression of relevant inflammation- and cartilage destruction-related proteins was analyzed. Interleukin (IL) -1β treatment significantly increased the mRNA levels of IL-1β, IL-6, tumor necrosis factor (TNF) -α, matrix metalloproteinases (MMP) -1, MMP-3, and MMP-13. High-frequency near-infrared diode laser irradiation significantly reduced the IL-1β-induced expression of IL-1β, IL-6, TNF-α, MMP-1, and MMP-3. Similarly, high-frequency near-infrared diode laser irradiation decreased the IL-1β-induced increase in protein expression and secreted levels of MMP-1 and MMP-3. These results highlight the therapeutic potential of high-frequency near-infrared diode laser irradiation in OA.
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Affiliation(s)
| | - Ryo Kunimatsu
- Correspondence: ; Tel.: +81-82-257-5686; Fax: +81-82-257-5687
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Ercetin C, Sahbaz NA, Acar S, Tutal F, Erbil Y. Impact of Photobiomodulation on T3/T4 Ratio and Quality of Life in Hashimoto Thyroiditis. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2020; 38:409-412. [PMID: 32186976 DOI: 10.1089/photob.2019.4740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Objective and background: Hashimoto's thyroiditis (HT) is both a B cell- and T cell-mediated, organ-specific autoimmune disease. No current treatment for underlying pathological mechanisms is available for HT and once diagnosed it requires long-term levothyroxine (LT4) treatment in most patients. The aim of our study was to evaluate the effects of photobiomodulation (PBM) on HT patients regarding thyroid functions, thyroid autoantibody levels, and decrease in hormone replacement needs. Methods: A total of 350 patients, who were diagnosed with Hashimoto`s thyroiditis, were included in our study. Patients were classified into two groups. Group 1 (n = 210) received PBM and dietary supplementation such as vitamin D, iron, and selenium. Group 2 (n = 140) received dietary supplements only. Patients' needs for LT4 replacement levels, triiodothyronine (T3), thyroxine (T4), and TSH levels, T3/T4 ratio, and thyroid autoantibody levels were evaluated. Results: As we compare both groups, the increase in T3 levels and T3/T4 ratio was markedly superior in Group 1 (p = 0.0001). The decrease in thyroid peroxidase antibody (TPO Ab) levels was also significantly different between both groups (p = 0.0001). Hormone replacement needs were also significantly decreased in Group 1 compared with Group 2 (p = 0.03). Low-level laser therapy (LLLT) is 70 times more effective in increasing T3/T4 ratio (p = 0.001) and 15 times more effective in decreasing levothyroxine dosage. Conclusions: Our results are encouraging and PBM seems to be very effective in increasing T3/T4 ratio and decreasing TPO Ab levels and weekly dosages of LT4 replacement therapy. Anti-inflammatory properties of PBM are greatly responsible for these changes and PBM causes major improvements in HT-related symptoms of the patient.
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Affiliation(s)
- Candas Ercetin
- Department of General Surgery, Bagcilar Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Nuri Alper Sahbaz
- Department of General Surgery, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Sami Acar
- Department of General Surgery, Acibadem Taksim Hospital, Istanbul, Turkey
| | - Firat Tutal
- Department of General Surgery, Istanbul Kolan Hospital, Istanbul, Turkey
| | - Yesim Erbil
- Department of General Surgery, Istanbul Medical Faculty, University of Istanbul, Istanbul, Turkey
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Feslihan E, Eroğlu CN. Can Photobiomodulation Therapy Be an Alternative to Methylprednisolone in Reducing Pain, Swelling, and Trismus After Removal of Impacted Third Molars? PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2019; 37:700-705. [PMID: 31589558 DOI: 10.1089/photob.2019.4696] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Background and objective: Studies investigating an alternative to corticosteroids in terms of potential side effects after surgical removal of impacted third molars are still ongoing. Accordingly, the present randomized single-blind study aimed to compare the efficacy of photobiomodulation therapy (PBMT) and methylprednisolone on pain, edema, and trismus after surgical removal of impacted third molars. Methods: The study included 30 healthy patients with bilaterally impacted lower third molars. The side (right or left molar) that would be extracted at first and the treatment (PBMT or corticosteroid) that would be applied to this side were decided by tossing a coin. The time interval between two surgical operations was at least 3 weeks. In the laser group, immediately after the surgical procedure, PBMT was applied extraorally to the insertion point of the masseter muscle for 60 sec with an output power of 0.3 W and an energy density of 6 J/cm2 and then repeated on postoperative days 1 and 2. In the corticosteroid group, 40 mg/2 mL methylprednisolone sodium succinate was injected postoperatively into the masseter muscle with the intrabuccal approach. On postoperative day 1, methylprednisolone injection (20 mg/1 mL) was repeated. Pain was evaluated using the visual analog scale on postoperative days 1, 2, and 7. Edema (in mm) and trismus (in mm) were evaluated preoperatively and on postoperative days 2 and 7. Results: There were no significant differences between the PBMT and methylprednisolone administration in terms of postoperative pain, edema, and trismus. Conclusions: Within the limits of the present study, PBMT was considered an alternative and a useful method for controlling inflammatory complications following impacted wisdom tooth surgery as it exhibited similar clinical efficacy to that of methylprednisolone.
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Affiliation(s)
- Erkan Feslihan
- Tekirdag Oral and Dental Health Hospital, Tekirdag, Turkey
| | - Cennet Neslihan Eroğlu
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
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Choung HW, Lee SH, Ham AR, Lee NR, Kim B, Pang KM, Jahng JW, Lee JH. Effectiveness of Low-Level Laser Therapy with a 915 Nm Wavelength Diode Laser on the Healing of Intraoral Mucosal Wound: An Animal Study and a Double-Blind Randomized Clinical Trial. MEDICINA (KAUNAS, LITHUANIA) 2019; 55:E405. [PMID: 31344985 PMCID: PMC6722629 DOI: 10.3390/medicina55080405] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/02/2019] [Accepted: 07/23/2019] [Indexed: 12/20/2022]
Abstract
Background and objectives: Diode laser has been the most popular low-level laser therapy (LLLT) technique in dentistry due to its good tissue penetration, lower financial costs, small size for portable application, and convenience to use. A series of recent studies with 940 nm or 980 nm lasers demonstrated that LLLT showed positive effects after third molar extraction or periodontal flap surgery. However, the effects of LLLT on intraoral mucosal wound healing after surgical incision have not yet been determined in human clinical study. Materials and Methods: The present study was performed to determine the efficacy and safety of 915 nm wavelength low-level laser therapy (LLLT) in mucosal wound healing. A total of 108 Sprague-Dawley rats were used. They were divided into three groups: Abrasive wound group, immediate LLLT once group, and daily LLLT group. As a clinical study, a total of 16 patients with split-mouth design subjected to bilateral mandibular third molar extraction were allocated into the LLLT group and placebo group. The process of LLLT was performed on postoperative days 0, 1, and 7, and parameters related to wound healing were analyzed on days 1, 7, and 14. Results: Repeated laser irradiation promoted mucosal wound healing of the rats. In the clinical study, although there were no significant statistical differences between the LLLT and placebo groups in all inflammatory parameters, the early stage mucosal healing tendency of wound dehiscence was higher in the LLLT group than in the placebo group clinically on postoperative day 1. Conclusions: The present results showed that 915 nm LLLT could be applied safely as an auxiliary therapy for mucosal wound healing.
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Affiliation(s)
- Han-Wool Choung
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul 03080, Korea
| | - Sung-Ho Lee
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul 03080, Korea
- Dental Life Science Research Institute & Clinical Translational Research Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, Korea
- School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Korea
| | - Ahe Reum Ham
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul 03080, Korea
| | - Na Ra Lee
- Clinical Research Team, Dentium, 21, Seoul 06169, Korea
| | - Bongju Kim
- Dental Life Science Research Institute & Clinical Translational Research Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, Korea
| | - Kang-Mi Pang
- Department of Oral and Maxillofacial Surgery, Seoul National University Kwanak Dental Hospital, Seoul 08826, Korea
| | - Jeong Won Jahng
- School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Korea
| | - Jong-Ho Lee
- Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul 03080, Korea.
- Dental Life Science Research Institute & Clinical Translational Research Center for Dental Science, Seoul National University Dental Hospital, Seoul 03080, Korea.
- School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Korea.
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Robijns J, Lodewijckx J, Mebis J. Photobiomodulation therapy for acute radiodermatitis. Curr Opin Oncol 2019; 31:291-298. [DOI: 10.1097/cco.0000000000000511] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Arslan H, Köseoğlu S, Doğanay Yildiz E, Arabaci T, Savran L, Yildiz DA, Veyisoğlu G. Effect of intracanal diode laser application and low-level laser therapy on CGRP change. Braz Oral Res 2019; 32:e125. [PMID: 30892373 DOI: 10.1590/1807-3107bor-2018.vol32.0125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 11/05/2018] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to investigate the effect of a placebo, intracanal diode laser application, and low-level laser therapy (LLLT) on the change of the total amount of calcitonin gene-related peptide (CGRP) in the gingival crevicular fluid (GCF) (split-mouth study design). GCF sampling was performed on a contralateral tooth and experimental tooth (root canal-treated tooth) of thirty-nine patients. The patients were divided into three groups (n = 13), as follows: placebo (mock laser application), intracanal laser application, and LLLT. GCF sampling was repeated at the same sites (experimental and control teeth) one week after root canal treatment. The data were analyzed using the Pearson's correlation analysis and the independent-samples t-tests (p=0.05). In the placebo group, the total CGRP level changes in the GCF before and after treatment was significantly higher for experimental teeth than for control teeth (p<0.05). However, there was no significant difference between experimental and control teeth in the intracanal laser application and LLLT groups (p > 0.05). Intracanal laser application and low-level laser therapy have immunomodulation effects linked to the modulation of the total amount of CGRP in the GCF.
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Affiliation(s)
- Hakan Arslan
- Atatürk University, Faculty of Dentistry, Department of Endodontics, Erzurum, Turkey
| | - Serhat Köseoğlu
- Sağlık Bilimleri University, Faculty of Dentistry,Department of Periodontology, Istanbul, Turkey
| | - Ezgi Doğanay Yildiz
- Kırıkkale University, Faculty of Dentistry, Department of Endodontics, Kırıkkale, Turkey
| | - Taner Arabaci
- Atatürk University, Faculty of Dentistry, Department of Periodontology, Erzurum, Turkey
| | - Levent Savran
- Izmir Katip Celebi University, Faculty of Dentistry, Department of Periodontology, Izmir, Turkey
| | - Dursun Anıl Yildiz
- Atatürk University, Faculty of Dentistry, Department of Periodontology, Erzurum, Turkey
| | - Gözde Veyisoğlu
- Başkent University, Faculty of Dentistry, Department of Periodontology, Ankara, Turkey
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Lee KTD, Chiang MH, Chen PH, Ho ML, Lee HZ, Lee HE, Wang YH. The effect of low-level laser irradiation on hyperglycemia-induced inflammation in human gingival fibroblasts. Lasers Med Sci 2018; 34:913-920. [DOI: 10.1007/s10103-018-2675-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 10/25/2018] [Indexed: 01/09/2023]
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da Fonseca ADS. Is there a measure for low power laser dose? Lasers Med Sci 2018; 34:223-234. [PMID: 30402798 DOI: 10.1007/s10103-018-2676-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 10/30/2018] [Indexed: 12/22/2022]
Abstract
Low power lasers have been used successfully for treatment of many diseases in soft and bone tissues. Basic and clinical researches have developed quickly being the scientific basis to therapeutic protocols based on these lasers. However, there are difficulties to compare experimental and clinical results obtained from different researchers because a complicated and intricate list of physical and biological parameters should be checked before the irradiation procedures as well as part of these parameters are omitted or inaccurately reported. This review focuses on the physical and biological parameters proposed to make experimental and clinical protocols accurate and reproducible as well as suggests dose parameters based on biological effects induced by low power lasers. A variety of parameters are reported by different authors and the number of parameter suggested could overcome three dozens. Thus, laser dose and laser dose equivalent are defined based on laser-induced biological effects and suggested as simplified dose parameters for low power lasers. These parameters could simplify and be useful to researchers and clinicians, permitting comparisons and decreasing mistakes and inaccuracies when laser-induced effects are evaluated and compared with those obtained in previous studies. The laser dose and laser dose equivalent could contribute significantly to improve accuracy, effectiveness, and safety of clinical protocols based on low power lasers.
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Affiliation(s)
- Adenilson de Souza da Fonseca
- Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Boulevard Vinte e Oito de Setembro, Avenida 28 de Setembro, 87, fundos, Vila Isabel, Rio de Janeiro, 20551030, Brazil. .,Centro de Ciências da Saúde, Centro Universitário Serra dos Órgãos, Avenida Alberto Torres, 111, Teresópolis, Rio de Janeiro, 25964004, Brazil.
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Yildiz MS, Gunpinar S. Free gingival graft adjunct with low-level laser therapy: a randomized placebo-controlled parallel group study. Clin Oral Investig 2018; 23:1845-1854. [PMID: 30218227 DOI: 10.1007/s00784-018-2608-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 08/23/2018] [Indexed: 12/19/2022]
Abstract
OBJECTIVES This study aimed to evaluate the effect of low-level laser therapy (LLLT) in terms of enhancing wound healing, reducing free gingival graft (FGG) shrinkage and postoperative pain. MATERIALS AND METHODS Thirty patients were randomly assigned to receive either FGG + LLLT (test, n = 15) or FGG + plasebo LLLT (control, n = 15). In the test group, a diode laser (810 nm, 0.1 W, energy density 6 J/cm2) was applied immediately after surgery and 1, 3, 7, and 14 days later. Measurements of the graft surface areas of the groups were made with an image-analyzing software at baseline and first, third, and sixth months. Complete wound epithelialization and visual analogue scale (VAS) for pain score were evaluated after surgery. RESULTS Shrinkage of the graft was statistically higher in the control than the test group at third and sixth months (p < 0.05). In terms of epithelization of the graft area, the test and control groups did not show any significant difference during the 28-day period (p > 0.05). Besides this, statistically significant differences were observed for VAS pain score and the number of analgesic used (p < 0.05). CONCLUSIONS The use of an 810-nm diode laser provided additional benefits to FGG in terms of less shrinkage of the graft dimensions and postoperative pain. CLINICAL RELEVANCE Low-level laser therapy reduced the shrinkage of free gingival graft's surface area after 6 months and enhanced postoperative pain relief.
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Affiliation(s)
- Mehmet Selim Yildiz
- Department of Periodontology, Faculty of Dentistry, Abant Izzet Baysal University, Bolu, Turkey
| | - Sadiye Gunpinar
- Department of Periodontology, Faculty of Dentistry, Abant Izzet Baysal University, Bolu, Turkey.
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Red light-emitting diode irradiation regulates oxidative stress and inflammation through SPHK1/NF-κB activation in human keratinocytes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 186:31-40. [DOI: 10.1016/j.jphotobiol.2018.05.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 05/10/2018] [Accepted: 05/18/2018] [Indexed: 12/21/2022]
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Mojarad N, Janzadeh A, Yousefifard M, Nasirinezhad F. The role of low level laser therapy on neuropathic pain relief and interleukin-6 expression following spinal cord injury: An experimental study. J Chem Neuroanat 2018; 87:60-70. [DOI: 10.1016/j.jchemneu.2017.04.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 04/13/2017] [Accepted: 04/14/2017] [Indexed: 12/13/2022]
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The effect of low-level laser therapy (660 nm) on the gene expression involved in tissue repair. Lasers Med Sci 2017; 33:315-321. [DOI: 10.1007/s10103-017-2375-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/26/2017] [Indexed: 12/21/2022]
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Lee JH, Chiang MH, Chen PH, Ho ML, Lee HE, Wang YH. Anti-inflammatory effects of low-level laser therapy on human periodontal ligament cells: in vitro study. Lasers Med Sci 2017; 33:469-477. [PMID: 29116611 PMCID: PMC5862948 DOI: 10.1007/s10103-017-2376-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/26/2017] [Indexed: 12/12/2022]
Abstract
Periodontal disease is a chronic inflammatory disease that is commonly treated with surgical and nonsurgical techniques. However, both approaches have limitations. Low-level laser therapy (LLLT) has been widely applied in reducing inflammatory reactions, and research indicates that LLLT induces an anti-inflammatory effect that may enhance periodontal disease therapy. The purpose of this study was to investigate the anti-inflammatory effect of LLLT on human periodontal ligament cells (hPDLCs) in an inflammatory environment and aimed to determine the possible mechanism of action. Cells were cultured and treated with or without lipopolysaccharide (LPS) from Porphryromonas gingivalis or Escherichia coli, followed by irradiation with a gallium-aluminum-arsenide (GaAlAs) laser (660 nm) at an energy density of 8 J/cm2. Quantitative real-time polymerase chain reactions were used to assess the expression of pro-inflammatory genes, including tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6, and IL-8. The dual-luciferase reporter assay was used to examine nuclear factor-κB (NF-κB) transcriptional activity. An enzyme-linked immunosorbent assay was used to monitor the concentration of intracellular cyclic adenosine monophosphate (cAMP). Both LPS treatments significantly induced the mRNA expression of pro-inflammatory cytokines. However, LLLT inhibited the LPS-induced pro-inflammatory cytokine expression and elevated intracellular levels of cAMP. The LLLT inhibitory effect may function by downregulating NF-κB transcriptional activity and by increasing the intracellular levels of cAMP. LLLT might inhibit LPS-induced inflammation in hPDLCs through cAMP/NF-κB regulation. These results should be further studied to improve periodontal therapy.
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Affiliation(s)
- Ji-Hua Lee
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, 100, Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan
| | - Min-Hsuan Chiang
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, 100, Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.,Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ping-Ho Chen
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, 100, Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.,Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan.,Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Mei-Ling Ho
- Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Physiology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Huey-Er Lee
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, 100, Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.,Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yan-Hsiung Wang
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, 100, Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan. .,Orthopaedic Research Center, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Yin K, Zhu R, Wang S, Zhao RC. Low level laser (LLL) attenuate LPS-induced inflammatory responses in mesenchymal stem cells via the suppression of NF-κB signaling pathway in vitro. PLoS One 2017; 12:e0179175. [PMID: 28594941 PMCID: PMC5464618 DOI: 10.1371/journal.pone.0179175] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 05/24/2017] [Indexed: 11/26/2022] Open
Abstract
Background Considering promising results in animal models and patients, therapeutic use of MSCs for immune disease is likely to undergo continued evaluation. Low-lever laser (LLL) has been widely applied to retard the inflammatory reaction. LLL treatment can potentially be applied in anti-inflammatory therapy followed by stem cell therapy. Aim of the study The purpose of this study was to investigate the effect of LLL (660 nm) on the inflammatory reaction induced by LPS in human adipose derived mesenchymal stem cells (hADSCs) and pertinent mechanism. Materials and methods Anti-inflammatory activity of LLL was investigated by LPS-induced mesenchymal stem cells. The production and expression of pro-inflammatory cytokines were evaluated by ELISA kits and RT-qPCR. Nuclear translocation of NF-κB was indicated by immunofluorescent staining. Phosphorylation status of NF-κB p65 and IκBα were illustrated by western blot assay. ROS generation was measured with CM-H2DCFDA, and NO secretion was determined by DAF-FM. We studied surface expression of lymphocyte activation markers when Purified peripheral blood mononuclear cell (PBMC) were activated by phytohaemagglutinin (PHA) in the presence of 3 types of treated MSCs. Results LLL reduced the secretion of IL-1β, IL-6, IL8, ROS and NO in LPS treated MSCs. Immunofluorescent assay demonstrated the nuclear translocation decrease of NF-κB in LLL treated LPS induced MSCs. Western blot analysis also suggested that LLL suppressed NF-κB activation via regulating the phosphorylation of p65 and IκBα. MSC significantly reduced the expression of activation markers CD25 and CD69 on PHA-stimulated lymphocytes. Conclusion The results indicate that LLL suppressed the activation of NF-κB signaling pathway in LPS treated MSCs through inhibiting phosphorylation of p65 and IκBα, which results in good anti-inflammatory effect. In addition, LLL attenuated activation-associated markers CD25 and CD69 in co-cultures of PBMC and 3 types of treated MSCs.
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Affiliation(s)
- Kan Yin
- Centre of Excellence in Tissue Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Rongjia Zhu
- Centre of Excellence in Tissue Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Shihua Wang
- Centre of Excellence in Tissue Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Robert Chunhua Zhao
- Centre of Excellence in Tissue Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
- * E-mail:
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Bekhet AH, Ragab B, Abushouk AI, Elgebaly A, Ali OI. Efficacy of low-level laser therapy in carpal tunnel syndrome management: a systematic review and meta-analysis. Lasers Med Sci 2017; 32:1439-1448. [PMID: 28580494 DOI: 10.1007/s10103-017-2234-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 05/12/2017] [Indexed: 02/06/2023]
Abstract
We performed this meta-analysis to investigate the efficacy of low-level laser therapy (LLLT), a physiotherapy modality with anti-inflammatory and analgesic effects, in the management of mild-to-moderate carpal tunnel syndrome (CTS). We searched PubMed, Web of Knowledge, Scopus, Cochrane Central, and Virtual Health Library for randomized controlled trials (RCTs) that compared the effects of LLLT with or without splinting versus placebo on functional and electromyographic outcomes in CTS. All outcomes were pooled as mean differences (MD) under the inverse variance or random effects model, using the statistical add-in (MetaXL, version 5.0). Eight RCTs (473 patients/631 wrists) were eligible for the final analysis. The overall effect estimates did not favor LLLT therapy group over placebo in all primary outcomes: visual analogue scale (MD -1.11, 95% CI [-2.58, 0.35]), symptom severity scale score (MD -1.41, 95% CI [-5.12, 2.29]), and functional status scale score (MD -1.33, 95% CI [-3.27, 0.61]). However, LLLT was superior to placebo in terms of grip strength (MD 2.19, 95% CI [1.63, 2.76]) and inferior to placebo in terms of sensory nerve action potential (MD -2.74, 95% CI [-3.66, -1.82]). Laser therapy is superior to placebo in terms of improving the grip strength; however, no significant difference was found between both groups in terms of functional status improvement, pain reduction, or motor electrodiagnostic evaluations. Further high-quality trials with longer follow-up periods are required to establish the efficacy of LLLT for CTS treatment.
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Affiliation(s)
- Amira Hassan Bekhet
- Faculty of Physical Therapy, Cairo University, Cairo, 11566, Egypt. .,Physical Therapy Egypt Research Society, Cairo, Egypt. .,Medical Research Group of Egypt, Cairo, Egypt.
| | - Basma Ragab
- Faculty of Physical Therapy, Cairo University, Cairo, 11566, Egypt.,Physical Therapy Egypt Research Society, Cairo, Egypt.,Medical Research Group of Egypt, Cairo, Egypt
| | - Abdelrahman Ibrahim Abushouk
- Medical Research Group of Egypt, Cairo, Egypt.,NovaMed Medical Research Association, Cairo, Egypt.,Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ahmed Elgebaly
- Medical Research Group of Egypt, Cairo, Egypt.,Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Olfat Ibrahim Ali
- Faculty of Physical Therapy, Cairo University, Cairo, 11566, Egypt.,Physical Therapy Egypt Research Society, Cairo, Egypt
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Silva IHM, de Andrade SC, de Faria ABS, Fonsêca DDD, Gueiros LAM, Carvalho AAT, da Silva WTF, de Castro RM, Leão JC. Increase in the nitric oxide release without changes in cell viability of macrophages after laser therapy with 660 and 808 nm lasers. Lasers Med Sci 2016; 31:1855-1862. [DOI: 10.1007/s10103-016-2061-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 08/22/2016] [Indexed: 12/18/2022]
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Liu Y, Zhang H. Low-Level Laser Irradiation Precondition for Cardiac Regenerative Therapy. Photomed Laser Surg 2016; 34:572-579. [PMID: 27627137 DOI: 10.1089/pho.2015.4058] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE The purpose of this article was to review the molecular mechanisms of low-level laser irradiation (LLLI) preconditioning for heart cell therapy. BACKGROUND DATA Stem cell transplantation appears to offer a better alternative to cardiac regenerative therapy. Previous studies have confirmed that the application of LLLI plays a positive role in regulating stem cell proliferation and in remodeling the hostile milieu of infarcted myocardium. Greater understanding of LLLI's underlying mechanisms would be helpful in translating cell transplantation therapy into the clinic. METHODS Studies investigating LLLI preconditioning for cardiac regenerative therapy published up to 2015 were retrieved from library sources and Pubmed databases. RESULTS LLLI preconditioning stimulates proliferation and differentiation of stem cells through activation of cell proliferation signaling pathways and alteration of microRNA expression. It also could stimulate paracrine secretion of stem cells and alter cardiac cytokine expression in infarcted myocardium. CONCLUSIONS LLLI preconditioning provides a promising approach to maximize the efficacy of cardiac cell-based therapy. Although many studies have reported possible molecular mechanisms involved in LLLI preconditioning, the exact mechanisms are still not clearly understood.
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Affiliation(s)
- Yiwei Liu
- State Key Laboratory of Cardiovascular Disease and Key laboratory of Cardiac Regenerative Medicine, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing, China
| | - Hao Zhang
- State Key Laboratory of Cardiovascular Disease and Key laboratory of Cardiac Regenerative Medicine, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing, China
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Suzuki R, Takakuda K. Wound healing efficacy of a 660-nm diode laser in a rat incisional wound model. Lasers Med Sci 2016; 31:1683-1689. [PMID: 27495128 DOI: 10.1007/s10103-016-2038-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 07/25/2016] [Indexed: 12/11/2022]
Abstract
This study aimed to elucidate the optimum usage parameters of low reactive-level laser therapy (LLLT) in a rat incisional wound model. In Sprague-Dawley rats, surgical wounds of 15-mm length were made in the dorsal thoracic region. They were divided into groups to receive 660-nm diode laser irradiation 24 h after surgery at an energy density of 0 (control), 1, 5, or 10 J/cm2. Tissue sections collected on postoperative day 3 were stained with hematoxylin-eosin and an antibody for ED1 to determine the number of macrophages around the wound. Samples collected on day 7 were stained with hematoxylin-eosin and observed via polarized light microscopy to measure the area occupied by collagen fibers around the wound; day 7 skin specimens were also subjected to mechanical testing to evaluate tensile strength. On postoperative day 3, the numbers of macrophages around the wound were significantly lower in the groups receiving 1 and 5 J/cm2 irradiation, compared to the control and 10 J/cm2 irradiation groups (p < 0.01). The area occupied by collagen fibers in day 7 was largest in 5 J/cm2 group, followed by 1 J/cm2 group, although this difference was not significant. The day 7 tensile test demonstrated significantly greater rupture strength in healing tissues from 1 and 5 J/cm2 irradiation groups, compared to the control group (p < 0.05). Thus, LLLT with a 660-nm diode laser with energy density of 1 and 5 J/cm2 enhanced wound healing in a rat incisional wound model. However, a higher radiation energy density yielded no significant enhancement.
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Affiliation(s)
- Ryoichi Suzuki
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Kazuo Takakuda
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan.
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Perego R, Proverbio D, Zuccaro A, Spada E. Low-level laser therapy: Case-control study in dogs with sterile pyogranulomatous pododermatitis. Vet World 2016; 9:882-7. [PMID: 27651678 PMCID: PMC5021839 DOI: 10.14202/vetworld.2016.882-887] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 07/19/2016] [Indexed: 11/16/2022] Open
Abstract
AIM Low-level laser therapy (LLLT) is a therapeutic photobiostimulation with properties in reducing swelling, inflammation, and promoting tissue healing. The objective of this pilot study was to evaluate LLLT in sterile pyogranulomatous pododermatitis in five dogs. MATERIALS AND METHODS In each dog, one lesion was designated as the control (treated with a 0.0584% hydrocortisone aceponate spray), and one or more other lesions were treated with a gallium aluminum arsenide-laser, daily for 5 days. Lesions were scored before treatment (D0), at the end (D4), 16 days after the last laser treatment (D20), and after 2 months (D65). RESULTS Comparing the treated lesion group with the control lesion group, the clinical score was similar at D0, whereas there was a statistically significant difference at D4 and D20; in the treated group over time, there was a statistically significant improvement between D0, D4, and D20. Lesion recurrence was absent in more than 50% of the treated lesions at D65. No adverse reactions were reported. CONCLUSION Given the positive results of this first clinical study, it would be interesting to extend the study to confirm the validity of this type of therapy in sterile pyogranulomatous pododermatitis in the dog.
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Affiliation(s)
- Roberta Perego
- Department of Veterinary Sciences for Health, Animal Production and Food Safety (VESPA), University of Milan, Via Celoria 10, 20133 Milano, Italy
| | - D. Proverbio
- Department of Veterinary Sciences for Health, Animal Production and Food Safety (VESPA), University of Milan, Via Celoria 10, 20133 Milano, Italy
| | - A. Zuccaro
- Department of Veterinary Sciences for Health, Animal Production and Food Safety (VESPA), University of Milan, Via Celoria 10, 20133 Milano, Italy
| | - E. Spada
- Department of Veterinary Sciences for Health, Animal Production and Food Safety (VESPA), University of Milan, Via Celoria 10, 20133 Milano, Italy
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Lee JH, Chang SY, Moy WJ, Oh C, Kim SH, Rhee CK, Ahn JC, Chung PS, Jung JY, Lee MY. Simultaneous bilateral laser therapy accelerates recovery after noise-induced hearing loss in a rat model. PeerJ 2016; 4:e2252. [PMID: 27547558 PMCID: PMC4963219 DOI: 10.7717/peerj.2252] [Citation(s) in RCA: 251] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 06/23/2016] [Indexed: 11/22/2022] Open
Abstract
Noise-induced hearing loss is a common type of hearing loss. The effects of laser therapy have been investigated from various perspectives, including in wound healing, inflammation reduction, and nerve regeneration, as well as in hearing research. A promising feature of the laser is its capability to penetrate soft tissue; depending on the wavelength, laser energy can penetrate into the deepest part of the body without damaging non-target soft tissues. Based on this idea, we developed bilateral transtympanic laser therapy, which uses simultaneous laser irradiation in both ears, and evaluated the effects of bilateral laser therapy on cochlear damage caused by noise overexposure. Thus, the purpose of this research was to assess the benefits of simultaneous bilateral laser therapy compared with unilateral laser therapy and a control. Eighteen Sprague-Dawley rats were exposed to narrow-band noise at 115 dB SPL for 6 h. Multiple auditory brainstem responses were measured after each laser irradiation, and cochlear hair cells were counted after the 15th such irradiation. The penetration depth of the 808 nm laser was also measured after sacrifice. Approximately 5% of the laser energy reached the contralateral cochlea. Both bilateral and unilateral laser therapy decreased the hearing threshold after noise overstimulation in the rat model. The bilateral laser therapy group showed faster functional recovery at all tested frequencies compared with the unilateral laser therapy group. However, there was no difference in the endpoint ABR results or final hair cell survival, which was analyzed histologically.
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Affiliation(s)
- Jae-Hun Lee
- College of Medicine, Dankook University, Beckman Laser Institute Korea , Cheonan , South Korea
| | - So-Young Chang
- College of Medicine, Dankook University, Beckman Laser Institute Korea , Cheonan , South Korea
| | - Wesley J Moy
- Beckman Laser Institute and Medical Clinic, University of California , Irvine , CA , United States
| | - Connie Oh
- Beckman Laser Institute and Medical Clinic, University of California , Irvine , CA , United States
| | - Se-Hyung Kim
- Department of Otolaryngology-Head and Neck Surgery, Jeju National University School of Medicine , Jeju , South Korea
| | - Chung-Ku Rhee
- Department of Otolaryngology-Head & Neck Surgery, College of Medicine, Dankook University , Cheonan , South Korea
| | - Jin-Chul Ahn
- Department of Biomedical Science, College of Medicine, Dankook University , Cheonan , South Korea
| | - Phil-Sang Chung
- College of Medicine, Dankook University, Beckman Laser Institute Korea, Cheonan, South Korea; Department of Otolaryngology-Head & Neck Surgery, College of Medicine, Dankook University, Cheonan, South Korea
| | - Jae Yun Jung
- College of Medicine, Dankook University, Beckman Laser Institute Korea, Cheonan, South Korea; Department of Otolaryngology-Head & Neck Surgery, College of Medicine, Dankook University, Cheonan, South Korea
| | - Min Young Lee
- Department of Otolaryngology-Head & Neck Surgery, College of Medicine, Dankook University , Cheonan , South Korea
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Eroglu CN, Keskin Tunc S. Effectiveness of Single Session of Low-Level Laser Therapy with a 940 nm Wavelength Diode Laser on Pain, Swelling, and Trismus After Impacted Third Molar Surgery. Photomed Laser Surg 2016; 34:406-10. [PMID: 27420732 DOI: 10.1089/pho.2016.4101] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION In low-level laser therapy (LLLT), applications are generally performed in repetitive sessions using wavelengths of around 800 nm, at which the depth of penetration of laser is greater. The present study aimed to investigate the effects of LLLT with a 940 nm diode laser, which was performed extraorally on all the primarily and secondarily affected areas immediately after surgery in a single session, on pain, swelling, and trismus that occurred after impacted tooth extraction. MATERIALS AND METHODS Thirty-five outpatients with similarly impacted lower third molars on both sides were selected. The teeth of patients were removed in two separate operations. Postoperatively, the patients received laser therapy with energy of 4 J/cm(2) on one side and no laser energy was applied to the other side (placebo side). Swelling, trismus, and subjective assessment of pain on a visual analog scale were evaluated and compared between the laser-treated and placebo sides. RESULTS There was no statistically significant difference in pain, swelling, or trismus between the sides (Mann-Whitney U test p > 0.05). However, according to the clinical outcomes, swelling and trismus were less in the laser-treated side than in the placebo side. CONCLUSIONS A single-session LLLT that would be applied with a diode laser immediately after impacted tooth extraction might help patients to be less affected by postoperative trismus and swelling.
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Affiliation(s)
- Cennet Neslihan Eroglu
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Yuzuncu Yil University , Van, Turkey
| | - Serap Keskin Tunc
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Yuzuncu Yil University , Van, Turkey
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Höfling DB, Chavantes MC, Acencio MMP, Cerri GG, Marui S, Yoshimura EM, Chammas MC. Effects of low-level laser therapy on the serum TGF-β1 concentrations in individuals with autoimmune thyroiditis. Photomed Laser Surg 2016; 32:444-9. [PMID: 25101534 DOI: 10.1089/pho.2014.3716] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE The objective of this study was to evaluate the serum concentration of transforming growth factor-β1 (TGF-β1) after low-level laser therapy (LLLT) in patients with hypothyroidism resulting from chronic autoimmune thyroiditis (CAT). BACKGROUND DATA Certain data indicate that LLLT is effective in patients with hypothyroidism caused by CAT; however, the mechanisms of action of LLLT in thyroid tissue are unknown. Cytokines could play a role in the response to LLLT. METHODS A randomized, placebo-controlled trial included 43 patients with a history of levothyroxine therapy for CAT-induced hypothyroidism. The patients were randomly assigned to receive either 10 sessions of LLLT (830 nm, 50 mW output power, and 707 J/cm(2) fluence; L group, n=23) or 10 sessions of a placebo treatment (P group, n=20) twice a week. Levothyroxine was maintained at the same dose during the entire study period. TGF-β1 was measured both pre-intervention and 30 days post-intervention in both groups. The differences were calculated between the TGF-β1 values observed 30 days post-intervention and the pre-intervention TGF-β1 values for each group (intragroup). RESULTS Comparing the differences in TGF-β1 levels between the L group (874.9±541.7 pg/mL) and the P group (-128.4±832.8 pg/mL) revealed that there was a statistically significant increase in TGF-β1 levels 30 days post-intervention in group L compared with the placebo group (p=0.0379). CONCLUSIONS This finding suggested that the significant increase in serum TGF-β1 levels in patients with CAT-induced hypothyroidism was associated with the thyroid LLLT procedure. Future studies of the effect of LLLT on TGF-β1 gene expression in thyroid tissue are necessary to confirm these findings.
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Affiliation(s)
- Danilo B Höfling
- 1 Ultrasound Unit, Department of Radiology, Hospital das Clínicas, University of Sao Paulo Medical School , São Paulo, SP, Brazil
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Is Low-Level Laser Therapy Effective in the Management of Pain and Swelling After Mandibular Third Molar Surgery? J Oral Maxillofac Surg 2016; 74:1322.e1-8. [DOI: 10.1016/j.joms.2016.02.030] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 01/30/2016] [Accepted: 02/27/2016] [Indexed: 11/19/2022]
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