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Sayar F, Garebigloo A, Saberi S, Etemadi A. In Vitro Photobiomodulation Effects of Blue and Red Diode Lasers on Proliferation and Differentiation of Periodontal Ligament Mesenchymal Stem Cells. J Lasers Med Sci 2024; 15:e5. [PMID: 38655041 PMCID: PMC11033857 DOI: 10.34172/jlms.2024.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 01/29/2024] [Indexed: 04/26/2024]
Abstract
Introduction: This study aimed to assess the photobiomodulation effects of blue and red lasers on the proliferation and osteogenic differentiation of periodontal ligament mesenchymal stem cells (PDLMSCs). Methods: PDLMSCs were cultured and tested in 4 groups. The first two groups were exposed to 445 nm diode laser irradiation (200 mW, 6 and 12 J/cm2 ), and the third group was exposed to 660 nm diode laser irradiation (50 mW, 4 J/cm2 ). The fourth group was also considered as the control group without irradiation. Cell viability/proliferation was assessed by MTT assay. RUNX2, alkaline phosphatase (ALP), collagen type 1 (col1), and osteocalcin (OCN) were evaluated by RT-PCR, and Alizarin red was used to evaluate the colonization. The data were analyzed by means of one-way analysis of variance. Results: The results of our study showed that cell survival/proliferation in the second group was significantly lower than that in the control group on days 1 and 7 (P<0.05). RT-PCR showed a significant increase in osteogenic genes in all three laser groups compared to the control group (P<0.05). All groups showed a significant increase in calcium content compared to the control group (P<0.05). ALP activity also confirmed the osteoblastic differentiation of cells in laser groups. Conclusion: 445 nm and 660 nm lasers with the studied parameters showed positive effects on the proliferation and osteoblastic differentiation of PDLMSCs.
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Affiliation(s)
- Ferena Sayar
- Department of Periodontics, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Sogol Saberi
- Laser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Ardavan Etemadi
- Department of Periodontics, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Mesquita CM, Oliveira MB, Costa MDMDA, Vieira WA, Lima RR, Rode SDM, Paranhos LR. Effect of photobiomodulation therapy on pain perception during anesthetic puncture of dental local anesthesia: A systematic review. Clinics (Sao Paulo) 2024; 79:100322. [PMID: 38484582 PMCID: PMC10950798 DOI: 10.1016/j.clinsp.2023.100322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/21/2023] [Accepted: 12/19/2023] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND Local anesthetic puncture is often related to the experience of pain. This study aimed to systematically analyze the literature on changes in pain perception during the anesthetic puncture of dental local anesthesia after Photobiomodulation Therapy (PBMT). MATERIAL AND METHODS An electronic search was performed in eight primary databases (Embase, LILACS, BBO, LIVIVO, MedLine via PubMed, SciELO, Scopus, and Web of Science) and three additional ones (EASY, Google Scholar, and OATD) to partially capture the "gray literature". The PICO strategy was used to identify randomized clinical trials evaluating the analgesic effect of PBMT in the anesthetic puncture site of dental local anesthesia compared to placebo or control groups, without restrictions on publication language and year. Two reviewers extracted the data and assessed the individual risk of bias of the eligible studies using the Cochrane Collaboration Risk of Bias Tool version 2.0. RESULTS The electronic search found 3,485 records, of which eight met the eligibility criteria and were included in the qualitative synthesis. The studies were published from 2011 to 2022. None of the included studies had a low risk of bias. PBMT groups showed no significant difference in pain scores compared to placebo and control groups of most studies. CONCLUSION Based on a low to very low certainty of evidence, PBMT seems to have no effect on pain perception during anesthetic puncture in patients undergoing dental local anesthesia.
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Affiliation(s)
- Caio Melo Mesquita
- School of Dentistry, Universidade Federal de Uberlândia (UFU), Uberlândia, MG, Brazil
| | - Millena Barroso Oliveira
- Postgraduate Program in Dentistry, School of Dentistry, Universidade Federal de Uberlândia (UFU), Uberlândia, MG, Brazil
| | | | - Walbert Andrade Vieira
- Department of Restorative Dentistry, Endodontics Division, School of Dentistry, Universidade Estadual de Campinas (UNICAMP), Piracicaba, SP, Brazil
| | - Rafael Rodrigues Lima
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Universidade Federal do Pará (UFPA), Belém, PA, Brazil
| | - Sigmar de Mello Rode
- Department of Dental Materials and Prosthetics, Institute of Science and Technology, Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), São Paulo, SP, Brazil
| | - Luiz Renato Paranhos
- Division of Social and Preventive Dentistry, School of Dentistry, Universidade Federal de Uberlândia (UFU), Uberlândia, MG, Brazil.
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Vasconcelos MR, Cardoso-Silva L, Barbosa ACL, Borsatto MC, Corona SAM. Influence of Intravascular Laser Irradiation of Blood (ILIB) on inflammatory cytokines and nitric oxide in vivo: a systematic review. Lasers Med Sci 2024; 39:85. [PMID: 38433159 DOI: 10.1007/s10103-024-04031-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 02/22/2024] [Indexed: 03/05/2024]
Abstract
The use of Intravascular Laser Irradiation of Blood (ILIB) as a treatment or adjunct tool has been used around the world since the 1980s. So that more professionals can deliver benefits to their patients in different areas of health, it is necessary to understand in depth the mechanisms of laser action at the molecular level, for correct indication and success in the treatment. To analyze works that evaluated the influence of ILIB on inflammatory cytokines and nitric oxide (NO) in animals and humans. The literature search was carried out between February and April 2023 in Pubmed, Medline, Web of Science, SciELO, Lilacs database. The risk of bias was assessed using the bias table where the authors performed the analyzes of all articles with the risk of bias domains. The methodology was defined following the PRISMA guidelines (Preferred Systematic Reviews and MetaAnalysis Report). The search retrieved 135 possibly relevant articles. After removing duplicates, according to the eligibility criteria, evaluation of titles and review of abstracts, in the end, 6 articles were included. An increase in anti-inflammatory cytokines, a decrease in pro-inflammatory cytokines and an increase in NO can be observed. The wavelengths used ranged from 660 to 808 nm when using a low intensity laser and when using a VIP light source 480-3400 nm, they also differed in terms of the light emission pattern. ILIB may be a complementary treatment option for patients who have comorbidities that lead to systemic inflammation.
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Affiliation(s)
- Milena Rodrigues Vasconcelos
- Department of Clinical Oncology, Stem Cells and Cell Therapy, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
| | - Lana Cardoso-Silva
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Ana Carolina Loyola Barbosa
- Department of Periodontics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Maria Cristina Borsatto
- Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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Lairedj K, Klausner G, Robijns J, Arany PR, Bensadoun RJ. [Photobiomodulation in the prevention and the management of side effects of cancer treatments: Bases, results and perspectives]. Bull Cancer 2024; 111:314-326. [PMID: 37858427 DOI: 10.1016/j.bulcan.2023.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/11/2023] [Accepted: 08/13/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND Assess the current and potential indications of photobiomodulation (PBM) therapy and their level of evidence in the prevention or treatment of side effects related to oncology treatments (radiation therapy, and to a minimal extent favored and hematopoietic stem cell transplants). And report on the recommended modalities (parameters and doses) of PBM therapy. MATERIALS AND METHODS The Embase, Medline/PubMed, Cochrane, EBSCO, Scopus, and LILACS databases were systematically reviewed to include and analyze publications of clinical studies that evaluated PBM in the prevention or management side effects related to cancer treatments. The keywords used were "photobiomodulation"; "low level laser therapy"; "acute oral mucositis"; "acute dysphagia"; "acute radiation dermatitis"; "lymphedema"; "xerostomia"; "dysgeusia"; "hyposalivation"; "lockjaw"; "bone necrosis"; "osteoradionecrosis"; "radiation induced fibrosis"; "voice and speech alterations"; "palmar-plantar erythrodysesthesia"; "graft versus host disease"; "peripheral neuropathy"; "chemotherapy induced alopecia". Prospective studies were included, while retrospective cohorts and non-original articles were excluded from the analysis. RESULTS PBM in the red or infrared spectrum has been shown to be effective in randomized controlled trials in the prevention and management of certain complications related to radiotherapy, in particular acute mucositis, epitheliitis and upper limb lymphedema. The level of evidence associated with PBM was heterogeneous, but overall remained moderate. The main limitations were the diversity and the lack of precision of the treatment protocols which could compromise the efficiency and the reproducibility of the results of the PBM. For other effects related to chemo/radiation therapy (dysgeusia, osteonecrosis, peripheral neuropathy, alopecia, palmar-plantar erythrodysaesthesia) and haematopoietic stem cell transplantation (graft versus host disease), treatment with PBM suffers from a lack of studies or limited studies at the origin of a weakened level of proof. However, based on these results, it was possible to establish safe practice parameters and doses of PBM. CONCLUSION Published data suggest that PBM could therefore be considered as supportive care in its own right for patients treated with radiation, chemotherapy, immunotherapy, hormone therapy or targeted therapies, whether in clinical practice or clinical trials. therapies. However, until solid data have been published on its long-term safety, the use of PBM should be considered with caution and within the recommended parameters and doses, particularly when practiced in areas of known or possible tumours. In this case, the patient should be informed of the theoretical benefits and risks of PBM in order to obtain informed consent before treatment.
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Affiliation(s)
- Kamel Lairedj
- Médecine générale, centre de santé Saint-Paul, 32, Delmas rue Louverture # 44, Delmas, Haïti; Université républicaine d'Haïti, # 22, Delmas 55, Lalue Ave John-Brown # 293 Bis, 1640 Port-au-Prince, Haïti
| | - Guillaume Klausner
- Oncologie - radiothérapie, centre de haute énergie (CHE), 10, boulevard Pasteur, 06000 Nice, France; Polyclinique Maymard, 13, rue Marcel-Paul, 20200 Bastia, France
| | - Julien Robijns
- Hasselt University, Faculty of Medicine and Life Sciences, Martelarenlaan 42, 3500 Hasselt, Belgique
| | - Praveen R Arany
- University at Buffalo, Oral Biology, Surgery and Biomedical Engineering, Buffalo, New York, États-Unis
| | - René-Jean Bensadoun
- Oncologie - radiothérapie, centre de haute énergie (CHE), 10, boulevard Pasteur, 06000 Nice, France; Département d'oncologie-radiothérapie, Gustave-Roussy, 114, rue Edouard-Vaillant, 94805 Villejuif, France.
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Mendes RJS, de Sousa NM, Furtado GS, Paschoal MAB, Lago ADN. Association of Papacarie Duo® and low-level laser in antimicrobial photodynamic therapy (aPDT). Lasers Med Sci 2024; 39:25. [PMID: 38198068 DOI: 10.1007/s10103-024-03981-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 01/04/2024] [Indexed: 01/11/2024]
Abstract
Dental caries is a multifactorial, non-communicable disease. Effective treatment options for minimally invasive removal of carious tissue include Papacarie Duo® gel and antimicrobial photodynamic therapy (aPDT). aPDT involves a combination of a light source and photosensitizer. Given that Papacarie Duo® contains a percentage of blue dye, this study aims to explore the antimicrobial potential of Papacarie Duo® when associated with a light source against Streptococcus mutans strains. The chosen light source was a low-power diode laser (λ = 660 nm, E = 3 J, P = 100 mW, t = 30 s). To assess antimicrobial capacity, planktonic suspensions of Streptococcus mutans were plated on Brain Heart Infusion Agar (BHI) to observe the formation of inhibition halos. The studied groups included methylene blue (0.005%), Papacarie Duo®, distilled water (negative control), 2% chlorhexidine (positive control), Papacarie Duo® + laser, and methylene blue (0.005%) + laser. Following distribution onto plates, each group was incubated at 37 °C for 48 h under microaerophilic conditions. Inhibition halos were subsequently measured using a digital caliper. The results showed that chlorhexidine had the greatest antimicrobial effect followed by the group of irradiated methylene blue and irradiated Papacarie Duo®. All experimental groups demonstrated antimicrobial potential, excluding the negative control group. The study concludes that Papacarie Duo® exhibits antimicrobial properties when associated with a low-power diode laser.
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Affiliation(s)
- Roberta Janaina Soares Mendes
- Department of Dentistry I, Federal University of Maranhão (UFMA), Avenida Dos Portugueses, 1966, Vila Bacanga, São Luís, MA, 65080-805, Brazil.
| | - Nayanna Matos de Sousa
- Department of Dentistry I, Federal University of Maranhão (UFMA), Avenida Dos Portugueses, 1966, Vila Bacanga, São Luís, MA, 65080-805, Brazil
| | - Guilherme Silva Furtado
- Department of Dentistry I, Federal University of Maranhão (UFMA), Avenida Dos Portugueses, 1966, Vila Bacanga, São Luís, MA, 65080-805, Brazil
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Ma H, Du Y, Xie D, Wei ZZ, Pan Y, Zhang Y. Recent advances in light energy biotherapeutic strategies with photobiomodulation on central nervous system disorders. Brain Res 2024; 1822:148615. [PMID: 37783261 DOI: 10.1016/j.brainres.2023.148615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 09/05/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
Transcranial photobiomodulation refers to irradiation of the brain through the skull using low-intensity red or near-infrared light, which is the most commonly studied method of light energy biotherapy for central nervous system disorders. The absorption of photons by specific chromophores within the cell elevates ATP synthesis, reduces oxidative stress damage, alleviates inflammation or mediates the activation of transcription factors and signaling mediators through secondary mediators, which in turn trigger downstream signaling pathways to cause a series of photobiological effects including upregulation of neurotrophic factors. Multiple mechanisms are simultaneously involved in the pathological process of central nervous system disorders. The pleiotropic treatment of transcranial photobiomodulation towards multiple targets plays a beneficial role in improving hemodynamics, neural repair and improving behaviors in central nervous system disorders such as ischemic stroke, traumatic brain injury, neurodegenerative diseases, epilepsy and depression. This review mainly introduces the mechanism and recent preclinical and clinical advances of transcranial photobiomodulation for central nervous system disorders, which will provide a reference for clinicians to understand and engage in related studies, and calls for more and larger studies to validate and develop a wider application of transcranial photobiomodulation in central nervous system.
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Affiliation(s)
- Huixuan Ma
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yitong Du
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Dan Xie
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China; The People's Hospital of Wu Hai Inner Mongolia, Inner Mongolia, China
| | - Zheng Z Wei
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yuhualei Pan
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China; Immunology Research Center for Oral and Systemic Health, Beijing Friendship Hospital, Capital Medical University, Beijing, China; Beijing Laboratory of Oral Health, Capital Medical University School of Stomatology, Beijing, China
| | - Yongbo Zhang
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
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Al-Moraissi EA, Almaweri AA, Al-Tairi NH, Alkhutari AS, Grillo R, Christidis N. Treatments for painful temporomandibular disc displacement with reduction: a network meta-analysis of randomized clinical trials. Int J Oral Maxillofac Surg 2024; 53:45-56. [PMID: 37802670 DOI: 10.1016/j.ijom.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 09/15/2023] [Accepted: 09/20/2023] [Indexed: 10/08/2023]
Abstract
There is currently no consensus on the best treatment for painful temporomandibular disc displacement with reduction (DDwR), and no network meta-analysis of randomized clinical trials (RCTs) comparing all types of treatment for this condition has been conducted. The objective of this study was to compare and rank all treatments for DDwR, including conservative treatments, occlusal splints, low-level laser therapy (LLLT), manual therapy, no treatment (control), arthrocentesis (Arthro) alone, Arthro plus intra-articular injection of platelet-rich plasma (Arthro-PRP) or hyaluronic acid (Arthro-HA), and Arthro plus occlusal splint. Predictor variables were pain intensity and maximum mouth opening (MMO). The mean difference with 95% confidence interval was estimated using Stata software. The GRADE system was used to assess the certainty of the evidence. Twenty RCTs reporting 1107 patients were identified in the literature search; 980 of these patients were included in the network meta-analysis. Direct meta-analysis showed that Arthro-PRP significantly reduced pain intensity compared to Arthro alone, while occlusal splint and manual therapy were superior to conservative treatment (all very low quality evidence). Arthro with intra-articular injection of PRP/HA ranked as the most effective treatment in terms of pain reduction, whereas LLLT ranked the best choice for increasing MMO for patients with DDwR. However, it is important to note that the evidence for the superiority of these treatments is generally of very low quality. Therefore, further high-quality research is needed to confirm these findings and provide more reliable recommendations for the treatment of DDwR.
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Affiliation(s)
- E A Al-Moraissi
- Department of Oral and Maxillofacial Surgery, Thamar University, Thamar, Yemen.
| | - A A Almaweri
- Department of Oral Medicine, Thamar University, Thamar, Yemen
| | - N H Al-Tairi
- Department of Oral and Maxillofacial Surgery, Thamar University, Thamar, Yemen
| | - A S Alkhutari
- Department of Oral and Maxillofacial Surgery, Thamar University, Thamar, Yemen
| | - R Grillo
- Department of Oral and Maxillofacial Surgery, Faculdade Patos de Minas, Brasília, Brazil; Department of Oral and Maxillofacial Surgery, Faculdade São Leopoldo Mandic, Campinas, Brazil
| | - N Christidis
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
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Bezerra LO, de Macedo LES, da Silva MLA, de Oliveira JMP, de Morais Gouveia GP, de Andrade PR, Micussi MTABC. Effects of photobiomodulation therapy on the functional performance of healthy individuals: a systematic review with meta-analysis. Lasers Med Sci 2023; 39:17. [PMID: 38150056 DOI: 10.1007/s10103-023-03956-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/14/2023] [Indexed: 12/28/2023]
Abstract
The aim of this study is to assess the effect of photobiomodulation therapy (PBMT) on functional performance concerning strength, fatigue, and functional capacity in healthy individuals. This systematic review with meta-analysis involved searches on data platforms and active searches of randomized clinical trials, focusing on PBMT as the sole intervention. Primary outcomes assessed included strength, fatigue, and functional capacity. Three reviewers screened studies by title and abstract using Rayyan, and data were extracted using a specific form. Bias risk was assessed using RoB2, and confidence in the evidence was evaluated using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE). The RevMan was used for meta-analysis. Sixteen studies were included, totaling 340 individuals (183 males and 157 women). Most articles presented a low risk of bias. Variability was observed in device types and application domains, including wavelengths (655-905 nm), power (10-200 nW), energy (0.6-30 J per point), and time (30-100 s per point). PBMT improved fatigue recovery (mean difference: 5.87; 95% CI 3.83, 7.91). There was no enhancement in strength (peak torque: mean difference 12.40; 95% CI -5.55, 30.55; one-repetition maximum test: mean difference 39.97, 95% CI -2.44, 82.38; isometric and isokinetic strength: mean difference 2.77, 95% CI -14.90, 20.44) nor improvement in short-term (mean difference 0.67, 95% CI -0.58, 1.91) and long-term (mean difference 18.44, 95% CI -55.65, 92.54) functional capacity. PBMT may aid in favoring fatigue recovery in healthy individuals; however, there's no evidence to support PBMT enhancing strength or improving functional capacity.
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Affiliation(s)
- Lívia Oliveira Bezerra
- Departamento de Fisioterapia, Programa de Pós-Graduação em Fisioterapia na Universidade Federal do Rio Grande Do Norte, Natal, Rio Grande do Norte, Brasil
| | - Luiza Eduarda Silva de Macedo
- Departamento de Fisioterapia da Universidade Federal do Rio Grande do Norte, Av Senador Salgado Filho, S/N. Campus Universitário - Lagoa Nova, Natal, 59078-970, Rio Grande do Norte, Brasil
| | - Maria Letícia Araújo da Silva
- Departamento de Fisioterapia da Universidade Federal do Rio Grande do Norte, Av Senador Salgado Filho, S/N. Campus Universitário - Lagoa Nova, Natal, 59078-970, Rio Grande do Norte, Brasil
| | - Joyce Maria Pereira de Oliveira
- Departamento de Fisioterapia da Universidade Federal do Rio Grande do Norte, Av Senador Salgado Filho, S/N. Campus Universitário - Lagoa Nova, Natal, 59078-970, Rio Grande do Norte, Brasil
| | | | | | - Maria Thereza Albuquerque Barbosa Cabral Micussi
- Departamento de Fisioterapia, Programa de Pós-Graduação em Fisioterapia na Universidade Federal do Rio Grande Do Norte, Natal, Rio Grande do Norte, Brasil.
- Departamento de Fisioterapia da Universidade Federal do Rio Grande do Norte, Av Senador Salgado Filho, S/N. Campus Universitário - Lagoa Nova, Natal, 59078-970, Rio Grande do Norte, Brasil.
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Wu CX, Li CH, Shiao YH, Cheng HY, Wu TH, Lee CH, Chang ZY, Yeh YC. The effect of a helmet type, home-use low-level light therapy device for chemotherapy-induced alopecia: study protocol for a randomized controlled trial. Trials 2023; 24:789. [PMID: 38053197 DOI: 10.1186/s13063-023-07823-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 11/22/2023] [Indexed: 12/07/2023] Open
Abstract
BACKGROUND Alopecia is one of the most common adverse effects of chemotherapy. It reduces the patient's self-esteem and quality of life and the effect of therapy. Scalp cooling is the only verified current method for prevention but success is not guaranteed, particularly after receiving anthracycline-based combinations. Low-level light therapy has been clinically proven to inhibit the progress of androgenic alopecia. A previous study using human subjects shows limited benefits for low-level light therapy for patients who suffer chemotherapy-induced alopecia but an increase in the number of probes and the optimization of light sources may improve the efficacy. This study determines the efficacy of low-level light therapy for the prevention of chemotherapy-induced hair loss for patients with breast cancer using a randomized controlled trial. METHODS One hundred six eligible breast cancer patients were randomly distributed into a low-level light therapy group and a control group, after receiving chemotherapy. Subjects in the low-level light therapy group received 12 courses of intervention within 4 weeks. Subjects in the control group received no intervention but were closely monitored. The primary outcome is measured as the difference in the hair count in a target area between the baseline and at the end of week 4, as measured using a phototrichogram (Sentra scalp analyzer). The secondary outcomes include the change in hair count at the end of week 1, week 2, and week 3 and hair width at the end of week 1, week 2, week 3, and week 4, as measured using a phototrichogram, and the change in distress, the quality of life, and self-esteem due to chemotherapy-induced alopecia, at the end of week 4, as measured using a questionnaire. DISCUSSION This study improves cancer patients' quality of life and provides clinical evidence. TRIAL REGISTRATION Registered at ClinicalTrials.gov- NCT05397457 on 1 June 2022.
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Affiliation(s)
- Cong-Xian Wu
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung Medical Center, Keelung, 204201, Taiwan
| | - Cheng-Hsin Li
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung Medical Center, Keelung, 204201, Taiwan
| | - Yi-Hsien Shiao
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung Medical Center, Keelung, 204201, Taiwan
- Graduate Institute of Natural Products, Chang Gung University, Taoyuan, 333323, Taiwan
| | - Huan-Yu Cheng
- The Institute of Health Policy and Management, National Taiwan University, Taipei, 106319, Taiwan
| | - Tsung-Han Wu
- Division of Hemato-oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, Keelung, 20401, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, 33320, Taiwan
| | - Chun-Hui Lee
- Division of General Surgery, Department of Surgery, Chang Gung Memorial Hospital, Keelung Medical Center, Keelung, 204201, Taiwan
| | - Zi-Yu Chang
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung Medical Center, Keelung, 204201, Taiwan
- Institute of Traditional Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan
| | - Yuan-Chieh Yeh
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung Medical Center, Keelung, 204201, Taiwan.
- Program in Molecular Medicine, College of Life Sciences, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan.
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Borges MMF, Malta CEN, Carlos ACAM, Crispim AA, de Moura JFB, Rebouças LM, Coelho da Silva BC, de Albuquerque CGP, de Barros Silva PG. Photobiomodulation therapy in the treatment of radiotherapy-related trismus of the head and neck. Lasers Med Sci 2023; 38:259. [PMID: 37935876 DOI: 10.1007/s10103-023-03920-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 10/21/2023] [Indexed: 11/09/2023]
Abstract
This study evaluated photobiomodulation therapy (PBMT) for treatment of trismus in patients undergoing radiotherapy for head and neck cancer (HNC). Sixteen patients, 10 men and 6 women, who had a mouth opening < 35 mm and underwent RT were included. The patients were evaluated daily before and after the PBMT application, measuring mouth opening and performing pain scores for the masticatory muscles using the visual analog scale (VAS). We used the infrared laser (~ 808 nm) extraorally, 0.1 W power, 3 J energy, 30 s (107 J/cm2) per point, applied to temporalis anterior, masseter muscles, and temporomandibular joints (TMJ). An intraoral point was made in the trigonoretromolar region towards the medial pterygoid muscle. The mean mouth opening of the patients increased by more than 7 mm throughout the treatment. The pain scores on the initial days showed an immediate reduction after PBMT on the ipsilateral side in the muscles and TMJ. Throughout PBMT applications, there was a significant reduction in pain scores in all muscles and the TMJ. The radiation dose of all patients was above 40 Gy, which is the threshold dose for the risk of developing trismus. SPSS software was used and adopted a confidence of 95%. The Kolmogorov-Smirnov normality test, Wilcoxon test, and Spearman correlation were performed. PBMT controls muscular pain and reduced mouth opening limitation in HNC during radiotherapy. Further studies are needed to evaluate the preventive capacity of PBMT protocols for RT trismus-related HNC.
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Affiliation(s)
- Marcela Maria Fontes Borges
- Division of Oral Pathology, Department of Dental Clinic, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil.
- Hospital Haroldo Juaçaba, Ceará Cancer Institute, Fortaleza, Ceará, Brazil.
| | - Cássia Emanuella Nóbrega Malta
- Division of Oral Pathology, Department of Dental Clinic, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil
- Department of Dentistry, Unichristus, Fortaleza, Ceará, Brazil
- Hospital Haroldo Juaçaba, Ceará Cancer Institute, Fortaleza, Ceará, Brazil
| | - Anna Clara Aragão Matos Carlos
- Division of Oral Pathology, Department of Dental Clinic, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - André Alves Crispim
- Department of Dentistry, Unichristus, Fortaleza, Ceará, Brazil
- Hospital Haroldo Juaçaba, Ceará Cancer Institute, Fortaleza, Ceará, Brazil
| | | | | | | | | | - Paulo Goberlânio de Barros Silva
- Division of Oral Pathology, Department of Dental Clinic, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Ceará, Brazil
- Department of Dentistry, Unichristus, Fortaleza, Ceará, Brazil
- Hospital Haroldo Juaçaba, Ceará Cancer Institute, Fortaleza, Ceará, Brazil
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Ribeiro IM, de Souza Barroso ME, Kampke EH, Braga LTF, Campagnaro BP, Meyrelles SDS. Infrared laser therapy decreases systemic oxidative stress and inflammation in hypercholesterolemic mice with periodontitis. Lipids Health Dis 2023; 22:171. [PMID: 37817126 PMCID: PMC10566050 DOI: 10.1186/s12944-023-01934-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/02/2023] [Indexed: 10/12/2023] Open
Abstract
BACKGROUND Near-infrared irradiation photobiomodulation (NIR-PBM) has been successfully used in periodontal treatment as an adjuvant tool to locally improve cell function and regeneration. Although the relationship between periodontitis and systemic disease constitutes an important aspect of periodontal clinical research, the systemic effects of NIR-PBM in periodontitis are not well known. In this study, we aimed to investigate the effects of NIR-PBM on systemic oxidative stress and inflammation in an apolipoprotein E (ApoE) knockout mouse model of periodontal disease (PD). METHODS We evaluated alveolar bone loss by measuring the distance from the cementoenamel junction (CEJ) to the alveolar bone crest (ABC), reactive oxygen species (ROS) production in blood cells, inflammatory activity, plasma cholesterol levels, and lipid peroxidation levels in three experimental groups: (1) ApoEC, control group without intervention; (2) ApoEP, first molar ligation-induced periodontitis for 4 weeks; and (3) ApoEP + PBM, exposed to 808 nm continuous wave, ø ~ 3 mm2, 100 mW, 60 s of NIR-PBM for 7 consecutive days after 4 weeks of periodontitis. At the end of the experimental protocols, ApoEP mice presented significantly increased alveolar bone loss, ROS production, inflammatory activity, plasma cholesterol, and lipid peroxidation levels compared to the ApoEC group (P < 0.05). NIR-PBM for 7 days in the ApoEP + PBM mice significantly decreased systemic ROS production, inflammatory response, plasma cholesterol, and lipid peroxidation levels, similar to those found in the ApoEC group (P > 0.05). However, it was not capable of preventing alveolar bone loss (P > 0.05 compared to ApoEP mice). CONCLUSION A 7-day treatment with NIR-PBM effectively reduces systemic oxidative stress and inflammatory parameters in hypercholesterolemic mice with PD. However, more studies with longer evaluation times are needed to confirm the systemic effects of locally applied NIR-PBM on PD associated with hypercholesterolemia.
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Affiliation(s)
- Isadora Martins Ribeiro
- Graduate Program in Dental Sciences, Federal University of Espírito Santo (UFES), Vitória, 29.043-900, ES, Brazil
| | - Maria Eduarda de Souza Barroso
- Graduate Program in Physiological Sciences, Federal University of Espírito Santo (UFES), Vitória, 29.043-900, ES, Brazil
| | - Edgar Hell Kampke
- Graduate Program in Physiological Sciences, Federal University of Espírito Santo (UFES), Vitória, 29.043-900, ES, Brazil
| | | | - Bianca Prandi Campagnaro
- Graduate Program in Pharmaceutical Sciences, Vila Velha University (UVV), Vila Velha, 29102-920, ES, Brazil
| | - Silvana Dos Santos Meyrelles
- Graduate Program in Dental Sciences, Federal University of Espírito Santo (UFES), Vitória, 29.043-900, ES, Brazil.
- Graduate Program in Physiological Sciences, Federal University of Espírito Santo (UFES), Vitória, 29.043-900, ES, Brazil.
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12
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Eghbaldoost A, Salehi Mashhadsari SP, Ghadirzadeh E, Ghoreifi A, Allameh F. Therapeutic Effects of Low-Level Laser on Male Infertility: A Systematic Review. J Lasers Med Sci 2023; 14:e36. [PMID: 38028870 PMCID: PMC10658110 DOI: 10.34172/jlms.2023.36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 07/05/2023] [Indexed: 12/01/2023]
Abstract
Introduction: The objective of this study was to assess the effectiveness and safety of photobiomodulation (PBM) in the treatment of male infertility. Methods: We searched Google Scholar, PubMed, and the reference sections of relevant papers published from January 1, 2000 to September 23, 2022. We retrieved all publications related to the impact of PBM on male infertility. After reviewing the titles, abstracts, and full texts, we included fifteen papers in the research. The studies involved 477 semen samples (in vitro studies) and 70 male participants (randomized clinical trials). Results: All 14 in vitro studies that evaluated effectiveness reported that PBM was successful in increasing the proportion of progressive sperms in semen samples. Various methods were used to evaluate the safety. One study with a sample size of 58 concluded that PBM was not a safe treatment, whereas the other ten studies confirmed its safety. Only one clinical trial evaluated the effect of laser acupuncture on male infertility and found improvements in sperm progressive motility without any serious adverse effects. Conclusion: All 15 studies evaluating effectiveness reported that the low-level laser was effective for increasing the proportion of progressive sperm in semen samples and that it was safe to use. However, due to the heterogeneity of population characteristics, source characteristics, duration of exposure, sample size, and instruments for measuring safety and efficacy, we cannot conclude that the positive results obtained from the reviewed studies are solely attributable to the low-level laser on the sperm samples.
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Affiliation(s)
- Amirreza Eghbaldoost
- Student Research Committee, Golestan University of Medical Sciences, Gorgan, Iran
| | | | - Erfan Ghadirzadeh
- Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran
| | - Alireza Ghoreifi
- Institute of Urology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA
| | - Farzad Allameh
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Dos Santos Soares F, de Souza Pinto M, Kruger A, Coracini CA, Bertolini GRF. Photobiomodulation therapy on skeletal muscles exposed to diabetes mellitus: a systematic review of animal studies. Lasers Med Sci 2023; 38:185. [PMID: 37580518 DOI: 10.1007/s10103-023-03853-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 08/08/2023] [Indexed: 08/16/2023]
Abstract
Diabetes-related muscle damage has been overlooked despite its known association with increased morbidity and mortality in DM individuals. PBMT is a recognized alternative to improve skeletal muscle health in other populations, but its effectiveness in DM is still unclear. To address this issue, we reviewed preclinical studies, available in any language and period, in ten sources of information. The methods were previously registered at PROSPERO (CRD42021271041), based on PRISMA recommendations. Studies in murine models of T1DM or T2DM that reported quantitative analyses of skeletal muscles treated with low-level light therapy could be included after a blind selection process. Most of the seven included studies focus on decompensated T1DM rats with acute muscle injury (cryoinjury or contusion). In these five studies, PBMT improved muscle regeneration, by reducing inflammation and stimulating factors pro-angiogenesis and pro-myogenesis. Some positive effects could also be observed in two studies on muscles without acute injury: control of oxidative stress (T1DM) and reduction of myosteatosis (T2DM). Although infrared laser applied locally appears to be a promising approach, optimal parameters are undefined due to the heterogeneity of outcomes and high risk of bias, which prevented a quantitative synthesis. Several aspects of this growing field have yet to be investigated, particularly regarding the DM model (e.g., aged animals, T2DM), intervention (e.g., comparison with LED), and outcomes (e.g., muscle mass, strength, and function). Future research should aim to improve the internal validity by following guidelines for animal studies and enhance the translatability to clinical trials by using animal models that closely mimic patients with DM in rehabilitation settings.
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Affiliation(s)
- Francyelle Dos Santos Soares
- Department of Physical Therapy, Center of Biological and Health Sciences, State University of Western Paraná, Universitaria St. 2069, Cascavel, Paraná, 85819-110, Brazil
| | - Milena de Souza Pinto
- Department of Physical Therapy, Center of Biological and Health Sciences, State University of Western Paraná, Universitaria St. 2069, Cascavel, Paraná, 85819-110, Brazil
| | - Alana Kruger
- Department of Physical Therapy, Center of Biological and Health Sciences, State University of Western Paraná, Universitaria St. 2069, Cascavel, Paraná, 85819-110, Brazil
| | - Camila Amaral Coracini
- Department of Physical Therapy, Center of Biological and Health Sciences, State University of Western Paraná, Universitaria St. 2069, Cascavel, Paraná, 85819-110, Brazil
| | - Gladson Ricardo Flor Bertolini
- Department of Physical Therapy, Center of Biological and Health Sciences, State University of Western Paraná, Universitaria St. 2069, Cascavel, Paraná, 85819-110, Brazil.
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Farshidfar N, Farzinnia G, Samiraninezhad N, Assar S, Firoozi P, Rezazadeh F, Hakimiha N. The Effect of Photobiomodulation on Temporomandibular Pain and Functions in Patients With Temporomandibular Disorders: An Updated Systematic Review of the Current Randomized Controlled Trials. J Lasers Med Sci 2023; 14:e24. [PMID: 37744015 PMCID: PMC10517581 DOI: 10.34172/jlms.2023.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 05/27/2023] [Indexed: 09/26/2023]
Abstract
Introduction: Temporomandibular disorders (TMDs) are the most prevalent non-dental origin orofacial pain conditions affecting the temporomandibular joints (TMJs) and/or orofacial muscles. Photobiomodulation therapy (PBMT) is a conservative way to improve function and reduce symptoms in TMD patients. This systematic review was conducted to update evidence about the effects of PBMT on pain intensity, TMJ movements, electromyography (EMG) activity, pressure pain threshold (PPT), and TMJ sound in patients with TMDs. Methods: A systematic literature search was conducted in Web of Science, PubMed/Medline, and Scopus databases using appropriate keywords and specific strategies from January 2000 to September 2022. Data extraction was done based on the inclusion/exclusion criteria. Results: A total of 40 studies were included. All included studies except one provided information on pain intensity; 27 studies showed a reduction in pain intensity in PBMT groups compared to control groups. Seven out of 15 studies, which reported maximum mouth opening (MMO), showed a greater MMO in PBMT groups than in placebo groups. In addition, the figures for passive maximum mouth opening (PMMO) and active maximum mouth opening (AMMO) in all the studies reporting PMMO and AMMO were higher in PBMT groups. In eight out of ten studies, lateral movement (LM) was greater in PBMT groups. Moreover, in three studies out of four, protrusive movement (PM) was reported to be greater in the PBMT group. Four out of nine studies showed a greater PPT in the PBMT group. Reduced TMJ sounds in the PBMT group were reported in two out of five studies. In addition, in most studies, no difference in EMG activity was detected between the two groups. Conclusion: This updated systematic review showed the promising effects of PBMT on the alleviation of pain and improvement in MMO. Using the infrared diode laser with a wavelength ranging between 780-980 nm, an energy density of<100 J/ cm2, and an output power of≤500 mW for at least six sessions of treatment seems to be a promising option for treating mentioned TMDs signs and symptoms based on the previously reported findings.
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Affiliation(s)
- Nima Farshidfar
- Orthodontic Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Golnoush Farzinnia
- Oral and Dental Disease Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Sahar Assar
- Section for Oral Ecology and Caries Control, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Parsa Firoozi
- School of Dentistry, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Fahimeh Rezazadeh
- Oral and Dental Disease Research Center, Department of Oral and Maxillofacial Medicine, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Neda Hakimiha
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Seraj B, Bavaghar A, Hakimiha N, Hosseini Z, Kharazifard MJ, Ghadimi S. Effect of Photobiomodulation Therapy With an 810-nm Diode Laser on Pain Perception Associated With Dental Injections in Children: A Double-Blind Randomized Controlled Clinical Trial. J Lasers Med Sci 2023; 14:e19. [PMID: 37583496 PMCID: PMC10423958 DOI: 10.34172/jlms.2023.19] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 04/29/2023] [Indexed: 08/17/2023]
Abstract
Introduction: This study investigated the photobiomodulation effect of an 810-nm diode laser in adjunction with topical anesthesia on pain perception during infiltration anesthesia of primary maxillary molars in children. Methods: This double-blind randomized controlled clinical trial was conducted on 64 children (aged 5-9 years) requiring extraction or stainless steel crown for their primary maxillary molars. The patients were randomly allocated into two groups (n=32) of laser and control. In the laser group, the injection site (buccal and palatal mucosa) was irradiated with an 810-nm laser (200 mW, 5.2 J/cm2) after 20% benzocaine topical anesthetic application, while the control group received a placebo laser following topical anesthesia. The pain intensity experienced by children during needle insertion into the buccal and palatal mucosa was determined using a visual analog scale (VAS) and modified behavioral pain scale (MBPS). Results: According to the results of the VAS and MBPS, no significant difference was detected in pain scores between the laser and control groups neither in the buccal nor in the palatal mucosa (P>0.05). Conclusion: Photobiomodulation therapy with an 810-nm laser with the current setting adjunct to topical anesthesia did not promote significant additional effects on the pain intensity.
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Affiliation(s)
- Bahman Seraj
- Department of Pediatric Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Anise Bavaghar
- Department of Pediatric Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Neda Hakimiha
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Zahra Hosseini
- Department of Pediatric Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Javad Kharazifard
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Sara Ghadimi
- Department of Pediatric Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
- Laser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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Hauck M, Schardong J, Donini G, Normann TC, Plentz RDM. Effects of photobiomodulation therapy (PBMT) over endothelial function in healthy individuals: a preliminary crossover clinical trial. Lasers Med Sci 2023; 38:104. [PMID: 37072603 DOI: 10.1007/s10103-023-03762-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/05/2023] [Indexed: 04/20/2023]
Abstract
Photobiomodulation therapy (PBMT) causes stimulatory effects that raise cell metabolism. The study aimed to evaluate the effects of PBMT on the endothelial function of healthy individuals. It was a controlled, randomized, crossover, triple-blind trial with 22 healthy volunteers (female: 77.3%), aged 25.45 years which were randomly divided into three groups. PBMT with gallium-aluminum-arsenide (GaAlAs) diode laser (810 nm, continuous-wave mode, 1000 mW, 0.28 cm2) was applied over the radial and ulnar artery regions in two parallel spots: group 1-30 J (n = 22, 107 J/cm2) per spot; group 2-60 J (n = 22, 214 J/cm2) per spot; and group 3-placebo (n = 22, sham). The endothelial function was measured before and immediately after PBMT by the flow-mediated dilation technique (%FMD) with high-resolution ultrasound. Statistical analysis was made with ANOVA for repeated measures, the effect size was measured by Cohen's d, and results are presented as mean and standard error (or 95% confidence intervals). A p-value < 0.05 was considered statistically significant. The %FMD increases 10.4% with 60 J (mean difference = 0.496 mm, 95% CI = 0.42 to 0.57, p < 0.001), 7.3% with 30 J (mean difference = 0.518 mm, 95% CI = 0.44 to 0.59, p < 0.001), and 4.7% with placebo (mean difference = 0.560 mm, 95% CI = 0.48 to 0.63, p < 0.001). We found a small effect size (p = 0.702; d de Cohen = 0.24) without statistical difference between interventions. PBMT with the energy density of 60 J and 30 J did not improve endothelial function.Trial registration number: NCT03252184 (01/09/2017).
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Affiliation(s)
- Melina Hauck
- Graduate Programm in Health Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Zip Code: 90050-170, Porto Alegre, Brazil.
- Graduate Programm in Rehabilitation Sciences of Universidade Federal de Santa Catarina (UFSC), Zip Code: 88.905-120, Araranguá, Brazil.
| | - Jociane Schardong
- Complexo Hospitalar Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Zip Code: 90020-090, Brazil
| | - Gabriela Donini
- Graduate in Physiotherapy, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Zip Code: 90050-170, Brazil
| | - Tatiana Coser Normann
- Health Multidisciplinary Residency Programm in Urgency and Emergency, Hospital de Pronto Socorro de Porto Alegre (HPS), Porto Alegre, Zip Code: 90040-192, Brazil
| | - Rodrigo Della Méa Plentz
- Graduate Programm in Health Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Zip Code: 90050-170, Porto Alegre, Brazil
- Complexo Hospitalar Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, Zip Code: 90020-090, Brazil
- Physiotherapy Department, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Zip Code: 90050-170, Brazil
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Aghili HA, Yassaei S, Sharifi M. Effect of Low-Level Laser Therapy on Patients With Class II Mandibular Deficiency Treated with Farmand Functional Appliance. J Lasers Med Sci 2023; 14:e12. [PMID: 37583499 PMCID: PMC10423953 DOI: 10.34172/jlms.2023.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 01/21/2023] [Indexed: 08/17/2023]
Abstract
Introduction: Considering the positive effects of a low-level laser on new bone formation, we aimed to investigate the effects of a low-level laser in the treatment of patients with class II mandibular deficiency treated with Farmand functional appliance. Methods: Twenty-two growing patients aged 10-14 years were randomly divided into "Farmand" and "Farmand+Laser" groups. All patients were treated with Farmand functional appliance. Patients in the "Farmand+laser" group were exposed to laser irradiation (980 nm, 100 mw, 4 points around temporomandibular joints, 100 seconds each point) weekly for three months after 3-4 weeks of using the appliance. Lateral cephalometry radiographs were taken from all patients before and after the treatment period, and changes in skeletal and dental parameters were measured. Results: The association of the particular laser irradiation with the functional appliance led to a greater increase in the effective length of the mandible (Co-Gn, P=0.048), the anterior sagittal position of the mandible (SNB, P=0.029), and the length of the ramus (Co-Go, P=0.028), and it showed a further decrease in the discrepancy between the jaws (ANB, P=0.000) compared with the functional appliance alone. Conclusion: The application of the laser with the chosen parameters and protocol in conjunction with the functional appliance improved the effects of the functional appliance and reduced the discrepancy between the two jaws.
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Affiliation(s)
| | | | - Mohadeseh Sharifi
- Department of Orthodontics, Faculty of Dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Wang H, Zhu S, Ding X, Deng Y, Ma X, Gan J, Wang Y, Sun A. Metabolomic study combined with the low-level light therapy of Chinese acupuncture points and combined oral contraceptives in treatment of primary dysmenorrhea: A prospective, multicenter, randomized controlled study. Heliyon 2023; 9:e13821. [PMID: 36915513 DOI: 10.1016/j.heliyon.2023.e13821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
Objective To compare the changes of metabolites between Low-level light therapy (LLLT) and combined oral contraceptive (COC) after treatment of primary dysmenorrhea (PD), and to compare and analyze the biological and biochemical effects of the two treatments by analyzing the differences in metabolite profiles. Methods A multicenter, double-blind, prospective, parallel, randomized controlled study was conducted on 69 women aged 16-35 years old with PD who were randomly divided into COC treatment group or LLLT treatment group. Low-level light therapy with light-emitting diodes (LED) was applied on two acupoints named "Guanyuan" (CV4) and "Qihai" (CV6). After 12 weeks of treatment intervention, blood samples were collected before and after treatment for metabolomic analysis. We used UPLC-MS/MS analysis to compare the differences in metabolite changes between LLLT and COC before and after treatment. Results 76 differential metabolites were detected in the LLLT group, and 92 differential metabolites were detected in the COC group, which were up-regulated or down-regulated (p < 0.001). Prostaglandin D2 (PG D2) was down-regulated and biliverdin was up-regulated after LLLT treatment, 4a-Hydroxytetrahydrobiopterin, Prostaglandin D2, 5-Hydroxy-l-tryptophan, Cholic acid were down-regulated and cortisol was up-regulated after COC treatment, and the differences were statistically significant. Cortisol and testosterone glucuronide in LLLT group were significantly lower than those in COC group. The metabolic pathways affected were glycerophospholipid metabolism, linoleic acid metabolism and arachidonic acid metabolism in the LLLT group, and glycerophospholipid metabolism, folate biosynthesis, arachidonic-acid-metabolism, and tryptophan metabolism in the COC group. The differential metabolic pathway were linoleic acid metabolism, steroid hormone biosynthesis, and alpha-Linolenic acid metabolism after the comparison of LLLT with COC. Conclusion LLLT and COC might relieve dysmenorrhea by down-regulating PGD2, and LLLT might also relieve dysmenorrhea by up-regulating biliverdin. The level of cortisol and testosterone glucuronide after LLLT treatment was lower than that after COC treatment, which might lead to the difference in the clinical efficacy of the two treatments for dysmenorrhea.
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Kaiser MA, Almeida SM, Rodriguez M, Issa N, Issa NT, Jimenez JJ. Low-Level Light Therapy and Minoxidil Combination Treatment in Androgenetic Alopecia: A Review of the Literature. Skin Appendage Disord 2023; 9:104-110. [PMID: 36937156 PMCID: PMC10015651 DOI: 10.1159/000527782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 10/12/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction We analyzed randomized clinical trials (RCTs) evaluating the efficacy of combined therapy with low-level light therapy (LLLT) and topical minoxidil for treatment of androgenetic alopecia (AGA). Methods A literature search within PubMed identified RCTs evaluating hair regrowth following LLLT and minoxidil. Selection criteria were 600-1,100 nm wavelengths, treatment time ≥16 weeks, and objective evaluation for hair regrowth. Results Five RCTs compared LLLT with minoxidil (2% or 5%) to 5% minoxidil treatment or LLLT treatment. One study showed combination therapy of LLLT, and 5% minoxidil improved hair density more than monotherapy. Another found combination LLLT with 2% minoxidil induced hair regrowth equivalent to 5% minoxidil. Similarly, another study described LLLT with 5% minoxidil versus minoxidil monotherapy to increase the number of hairs with no statistical difference between groups. One trial found that combination group increased hair regrowth in the first 2 months. The last study found a statistically significant increase in hair density with combined therapy compared to monotherapy. Conclusion The studies describe either superiority or equivalence of combination therapy to minoxidil monotherapy for AGA. Early outcomes appear to support the superiority of combination therapy, but this advantage wanes at the end of the study periods.
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Affiliation(s)
- Michael A. Kaiser
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Stephanie M. Almeida
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Mario Rodriguez
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Najy Issa
- St. George's University School of Medicine, St. George's, Grenada
| | - Naiem Tony Issa
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Joaquin J. Jimenez
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
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Giannaccare G, Vaccaro S, Pellegrini M, Borselli M, Carnovale Scalzo G, Taloni A, Pietropaolo R, Odadi AS, Carnevali A. Serial Sessions of a Novel Low-Level Light Therapy Device for Home Treatment of Dry Eye Disease. Ophthalmol Ther 2023; 12:459-468. [PMID: 36484948 PMCID: PMC9834479 DOI: 10.1007/s40123-022-00619-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 11/22/2022] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION This study aimed to evaluate the changes that a recently developed at-home device using low-level light therapy (LLLT) produced in signs and symptoms of patients with dry eye disease (DED) owing to meibomian gland dysfunction (MGD). METHODS In this prospective study, patients with DED owing to MGD not successfully responding to first-line therapy (tear substitutes and eye lid hygiene) were treated with four serial sessions (every other day) of mask based on LLLT technology and dedicated for home use (my-mask®, Espansione Marketing S.p.A., Bologna, Italy). Non-invasive ocular surface examination was carried out by means of Keratograph 5M (Oculus, Wetzlar, Germany) before and after four mask sessions for the evaluation of (i) tear meniscus height (TMH); (ii) first and average non-invasive Keratograph breakup time (NIKBUT); (iii) meibomian gland loss (MGL). Ocular Surface Disease Index (OSDI) questionnaire was used to assess ocular discomfort symptoms. RESULTS Overall, 17 patients (3 male, 14 female; mean age 61.47 ± 11.93 years) were enrolled and all of them regularly completed the entire cycle of four sessions without reporting any adverse event. The mean values of NIKBUT first and NIKBUT average increased significantly after treatment (from 5.29 ± 2.60 at T0 to 9.04 ± 3.49 s at T1 [P = 0.001] and from 9.40 ± 3.81 to 11.28 ± 2.81 s [P = 0.017]); in parallel, the mean value of TMH increased significantly from 0.27 ± 0.06 to 0.32 ± 0.09 mm (P = 0.029). Conversely, there were not statistically significant differences for MGL (P = 0.346). In addition, the mean value of OSDI score decreased after treatment (from 32.00 ± 7.96 at T0 to 20.71 ± 8.03 at T1; P < 0.001). CONCLUSIONS One week of serial sessions of a newly developed LLLT device for home use significantly improved tear film production and stability along with ocular discomfort symptoms in patients with DED owing to MGD. These findings open up a new scenario for patients with MGD who can enjoy the unique benefits of LLLT at home.
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Affiliation(s)
- Giuseppe Giannaccare
- Department of Ophthalmology, University Magna Græcia of Catanzaro, Viale Europa, 88100 Germaneto, Catanzaro Italy
| | - Sabrina Vaccaro
- Department of Ophthalmology, University Magna Græcia of Catanzaro, Viale Europa, 88100 Germaneto, Catanzaro Italy
| | - Marco Pellegrini
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy ,Department of Ophthalmology, Ospedali Privati Forlì “Villa Igea”, Forlì, Italy ,Istituto Internazionale per la Ricerca e Formazione in Oftalmologia, Forlì, Italy
| | - Massimiliano Borselli
- Department of Ophthalmology, University Magna Græcia of Catanzaro, Viale Europa, 88100 Germaneto, Catanzaro Italy
| | - Giovanna Carnovale Scalzo
- Department of Ophthalmology, University Magna Græcia of Catanzaro, Viale Europa, 88100 Germaneto, Catanzaro Italy
| | - Andrea Taloni
- Department of Ophthalmology, University Magna Græcia of Catanzaro, Viale Europa, 88100 Germaneto, Catanzaro Italy
| | - Rocco Pietropaolo
- Department of Ophthalmology, University Magna Græcia of Catanzaro, Viale Europa, 88100 Germaneto, Catanzaro Italy
| | | | - Adriano Carnevali
- Department of Ophthalmology, University Magna Græcia of Catanzaro, Viale Europa, 88100 Germaneto, Catanzaro Italy
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Coracini CA, Zazula MF, Ferreira MO, da Silva JC, da Silva Scarton SR, Panis C, de Fátima Chasko Ribeiro L, da Silva Leal TS, Bertolini GRF. Acute effects of photobiomodulation applied on the dorsal root ganglion in gout model-induced rats. J Photochem Photobiol B 2023; 239:112644. [PMID: 36652793 DOI: 10.1016/j.jphotobiol.2022.112644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022]
Abstract
Gouty arthritis is an inflammatory disease that triggers symptoms such as pain, swelling, and joint stiffness. Since its main therapy is medication, research on other forms of treatment that do not generate side effects is necessary. Given this, the objective of this research was to evaluate the effects of combined photobiomodulation (LASER and LED) applied on the dorsal root ganglion (DRG) in an experimental model of gouty arthritis. For this, 40 Wistar rats were randomized into 4 groups: simulation of the model with saline injection, without treatment (CTL; n = 10); gout simulation with photobiomodulation treatment (CTL-PBM; n = 10); gout model with the injection of monosodium urate crystals (1.25 mg) in the femorotibial joint, without treatment (GOT; n = 10); or gout model with photobiomodulation treatment (GOT-PBM; n = 10). After 7 h of gout induction, photobiomodulation was performed with a cluster of 4 diodes applied to the GRD region in animals from the CTL-PBM and GOT-PBM groups. After analysing the results, it was concluded that the therapy favored the reduction of edema and joint incapacity, as well as the increase in the nociceptive threshold and plantar grip strength. Furthermore, PBM stimulated an increase in the inflammatory response (with increased levels of IL-1β and greater recruitment of leukocytes) and greater activation of the antioxidant system. Therefore, PBM can be considered an effective therapeutic alternative to improve the functional status in this model of joint disease.
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Affiliation(s)
| | | | | | | | | | - Carolina Panis
- Universidade Estadual do Oeste do Paraná (UNIOESTE), Paraná, Brazil
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22
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Mira PCDS, Vilela LD, Corona SAM, Borsatto MC. Effect of low-level laser stimulation of acupuncture points in pediatric dentistry: a systematic review. Lasers Med Sci 2023; 38:52. [PMID: 36690781 DOI: 10.1007/s10103-023-03720-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/17/2023] [Indexed: 01/25/2023]
Abstract
The biomodulatory potential of low-level laser therapy (LLLT) has prompted investigations of different outcomes in health. One line of research is the stimulation of acupuncture points for the relief of different signs and symptoms related to the stomatognathic system. In dentistry, some studies in pediatric dentistry have demonstrated the benefit of LLLT therapies in the management of dental anxiety in children. This systematic review aimed to analyze previous clinical studies on the application of LLLT at acupoints among pediatric dental patients. This systematic review was conducted according to the Cochrane Collaboration guidelines and the population, intervention, comparison, and outcome strategy. A broad literature search up to June 17, 2022, was performed using four electronic databases (PubMed, Scopus, Embase, and Google Scholar). The risk of bias in randomized clinical trials was assessed using the RoB 2 tool. A total of four studies using LLLT for photobiomodulation were included (n = 4). The most common wavelengths used were in the infrared range (variation between 716 nm and 980 nm). There were little variations in the application time (14 s to 1 min) and exposure dose (1 to 5 joules). LLLT acted positively on different acupuncture points. LLLT provided various benefits and optimized dental practice by reducing the gag reflex during radiography and impression taking, preanesthetic pain, and symptoms of sleep bruxism in the pediatric dental population. Only one of the evaluated studies had a high risk of bias. The LLLT at acupuncture points is associated with positive results on sleep bruxism, preanesthetic pain, and gag reflex in pediatric dentistry. Future research studies should prioritize standardization of the study design and the methods of analysis.
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Affiliation(s)
- Paôla Caroline da Silva Mira
- Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, University of São Paulo (USP)-Ribeirão Preto, São Paulo, Brazil.
| | - Larissa Dias Vilela
- Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, University of São Paulo (USP)-Ribeirão Preto, São Paulo, Brazil
| | - Silmara Aparecida Milori Corona
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP)-Ribeirão Preto, São Paulo, Brazil
| | - Maria Cristina Borsatto
- Department of Pediatric Clinics, School of Dentistry of Ribeirão Preto, University of São Paulo (USP)-Ribeirão Preto, São Paulo, Brazil
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Zheng Y, Dong X, Chen S, He Y, An J, Liu M, He L, Zhang Y. Low-level laser therapy prevents medication-related osteonecrosis of the jaw-like lesions via IL-1RA-mediated primary gingival wound healing. BMC Oral Health 2023; 23:14. [PMID: 36627695 PMCID: PMC9832759 DOI: 10.1186/s12903-022-02678-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 12/19/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Medication-related osteonecrosis of the jaw (MRONJ) is a serious debilitating disease caused by anti-resorption and anti-angiogenesis drugs, significantly affecting patients' quality of life. Recent studies suggested that primary gingival wound healing may effectively prevent the development of MRONJ. This study aimed to evaluate the effects of low-level light therapy (LLLT) on promoting gingival wound healing in extraction sockets of MRONJ-like mice and preventing the occurrence of MRONJ. Furthermore, we explored underlying mechanisms. METHODS Mice were randomly divided into the Ctrl, Zol, and Zol + LLLT groups. Administration of zoledronate and tooth extraction of bilateral maxillary second molars were used to build the MRONJ model, and LLLT was locally administered into the tooth sockets to examine the effect of LLLT. Next, to explore the function of IL-1RA, we performed LLLT with interleukin-1 receptor antagonist (IL-1RA) neutralizing antibody (named Zol + LLLT + IL-1RA NAb group) or negative control antibodies for tooth extraction in subsequent rescue animal experiments. Stereoscope observations, micro-computed tomography, and histological examination were conducted to evaluate gingival wound healing and bone regeneration in tooth sockets. The effects of LLLT on the migration capacities of zoledronate-treated epithelial cells were assessed in vitro. RESULTS LLLT promoted primary gingival wound healing without exposed necrotic bone. Micro-computed tomography results showed higher bone volume and mineral density of the tooth sockets after LLLT. Histology analysis showed complete gingival coverage, obvious bone regeneration, and reduced soft tissue inflammation, with down-regulated pro-inflammation cytokines, like interleukin-1 beta (IL-1β) and tumor necrosis factor-α (TNF-α), and up-regulated IL-1RA expression in the gingival tissue in the LLLT group. The rescue assay further showed that the effects of LLLT promoting gingival wound healing and preventing MRONJ might be partially abolished by IL-1RA neutralizing antibodies. In vitro studies demonstrated that LLLT accelerated zoledronate-treated epithelial cell migration. CONCLUSIONS LLLT might promote primary gingival wound healing and contribute to subsequent bone regeneration of the tooth extractions in MRONJ-like lesions via IL-1RA-mediated pro-inflammation signaling suppression.
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Affiliation(s)
- Yi Zheng
- grid.11135.370000 0001 2256 9319Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie, Haidian District, Beijing, 100081 People’s Republic of China
| | - Xian Dong
- grid.11135.370000 0001 2256 9319Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie, Haidian District, Beijing, 100081 People’s Republic of China
| | - Shuo Chen
- grid.11135.370000 0001 2256 9319Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie, Haidian District, Beijing, 100081 People’s Republic of China
| | - Yang He
- grid.11135.370000 0001 2256 9319Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie, Haidian District, Beijing, 100081 People’s Republic of China
| | - Jingang An
- grid.11135.370000 0001 2256 9319Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie, Haidian District, Beijing, 100081 People’s Republic of China
| | - Meng Liu
- grid.11135.370000 0001 2256 9319Laser and Cosmetic Surgery Division, Peking University School and Hospital of Stomatology, Beijing, People’s Republic of China
| | - Linhai He
- grid.11135.370000 0001 2256 9319Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie, Haidian District, Beijing, 100081 People’s Republic of China ,grid.11135.370000 0001 2256 9319First Clinical Division, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie, Haidian District, Beijing, 100081 People’s Republic of China
| | - Yi Zhang
- grid.11135.370000 0001 2256 9319Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, 22 Zhongguancun Nandajie, Haidian District, Beijing, 100081 People’s Republic of China
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Furquim LR, Mélo AM, Barbosa AFS, Olivato OP, Silva-Sousa YTC, Leite-Panissi CRA, Magri LV. Application of photobiomodulation for chronic pain-related TMD on pain points versus pre-established points: Randomized clinical trial. J Photochem Photobiol B 2023; 238:112612. [PMID: 36459910 DOI: 10.1016/j.jphotobiol.2022.112612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 11/17/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
Photobiomodulation therapy (PTB) is a therapeutic possibility for temporomandibular disorders (TMD), but its effectiveness and protocols for use remain controversial. This study is a RCT that compared the effectiveness of PTB on pain points of the masticatory muscles and TMJs, located through palpation versus application of pre-established points in women with painful TMD, diagnosis by DC/TMD (Diagnostic Criteria for Temporomandibular Disorders - Brazilian Portuguese version). Therefore, a total sample of 54 women, aged between 18 and 60 years, was investigated. Volunteers were randomly randomized and PTB was applied in four different groups with a dose of 4 J and 6 J divided into pre-established application points (PE - G1) and pain points (PD - G2) - Groups 4PE, 4PD, 6PE and 6PD. Four laser applications were performed with a wavelength of 780 nm, one session per week, totaling one month of therapy. The following assessments were performed: DC/TMD, Brief Pain Inventory (BPI), McGill Questionnaire - Short Version (SF-MPQ) and Pain Intensity, Visual Analogue Scale (VAS). Friedman's test was used for within-group comparisons, while the Mann-Whitney test was used for between-group comparisons (p < 0.05). According to the results, laser application on pain points (G2) was more effective. McGill's results showed that regardless of dose, the pain point application group had better outcomes (p = 0.004). Pain intensity evaluation (last days) also showed that application at the pain points was more effective regardless of dose (p = 0.0002). Medians and interquartile deviations showed overall that PTB was more effective at pain points, with a trend towards better outcomes at the 6 J dose. Therefore, it can be concluded that in women with chronic painful TMD, the application of PTB at pain points is more effective than the application at pre-established points. Therefore, individualized PTB protocols are proposed, based on examination palpation of the masticatory structures.
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25
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Vochikovski L, Favoreto MW, Rezende M, Terra RMO, Gumy FN, Loguercio AD, Reis A. Use of infrared photobiomodulation with low-level laser therapy for reduction of bleaching-induced tooth sensitivity after in-office bleaching: a double-blind, randomized controlled trial. Lasers Med Sci 2022; 38:18. [PMID: 36562868 PMCID: PMC9782280 DOI: 10.1007/s10103-022-03682-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022]
Abstract
The purpose of this study is to evaluate the use of infrared photobiomodulation with low-level laser therapy (PBM) to reduce bleaching-induced tooth sensitivity (TS) after in-office bleaching. Eighty-three participants were randomized in blocks into two groups. In the experimental group, the patients received an application after each session of in-office bleaching (35% hydrogen peroxide, 1 × 50 min; 2 sessions with 1-week interval), while the laser application was simulated in the control group. The PBM system was operated in continuous mode, using 3 J of energy. A dose of 100 J/cm2 was applied for 30 s with 808 nm (100 mW of power) in the middle third of the crown. The risk and intensity of TS were recorded immediately after bleaching, 1 h, 24 h, and 48 h after each bleaching session, with a visual scale analog (0-10) and a five-point numerical scale (0-4). The color was recorded at the beginning, weekly, and 1 month after the end of the bleaching (VITA Classical, VITA Bleachedguide, and digital spectrophotometer). The risk of TS was 98% (95% CI 88 to 99%) for the laser group and 95% (95% CI 83 to 99%) for the control (RR = 1.03; 95% CI 0.94 to 1.12; p = 1.0). Similarly, no difference in the intensity of TS was detected for both pain scales (p > 0.65). Improvement in color change, regardless of the group, was observed (p > 0.15). The application of an PBM did not reduce the risk and intensity of TS when applied after the procedure using the parameters recommended by the manufacturer.Trial registration number and date of registration: RBR-4HCVSG-04/06/2019.
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Affiliation(s)
- Laína Vochikovski
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Paraná, Ponta Grossa, Brazil
| | - Michael W Favoreto
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Paraná, Ponta Grossa, Brazil
| | - Marcia Rezende
- Department of Dentistry, Paulo Picanço School of Dentistry, Ceará, Fortaleza, Brazil
| | - Renata M O Terra
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Paraná, Ponta Grossa, Brazil
| | - Fernanda N Gumy
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Paraná, Ponta Grossa, Brazil
| | - Alessandro D Loguercio
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Paraná, Ponta Grossa, Brazil.
| | - Alessandra Reis
- Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Paraná, Ponta Grossa, Brazil
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Bahrami H, Moharrami A, Mirghaderi P, Mortazavi SMJ. Low-Level Laser and Light Therapy After Total Knee Arthroplasty Improves Postoperative Pain and Functional Outcomes: A Three-Arm Randomized Clinical Trial. Arthroplast Today 2022; 19:101066. [PMID: 36507283 PMCID: PMC9732130 DOI: 10.1016/j.artd.2022.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/02/2022] [Accepted: 10/29/2022] [Indexed: 12/12/2022] Open
Abstract
Background We examined the effect of low-level laser therapy (LLLT) and Bioptron light therapy on pain and function following primary total knee arthroplasty. Methods A single-center, single-surgeon, prospective randomized clinical trial was performed with 3 groups of 15 patients: LLLT (804 nm), light (Bioptron; Bioptron AG, Wollerau, Switzerland), and controls. Range of motion (ROM), visual analog scale pain, opiate consumption (oxycodone in milligrams), knee swelling, and the Knee Society Score (KSS) were assessed before the surgery and on postoperative day 2, postoperative day 3, month 3, and month 12 after the operation. Results The preoperative scores were similar between groups. A higher ROM was observed with the LLLT group at all follow-ups except at the 12-month follow-up (3-month ROM: 116.8° vs 104.0° vs 92.3°; P < .001). The knee swelling at 3 months was similar between the LLLT and light groups (2.1 cm), which was lower than that in controls (2.1 cm, P < .001). Furthermore, visual analog scale pain decreased more in the LLLT group than in other groups (8.5 vs 7.2 vs 6.0 points) at 3 months (P = .04) but was similar at 12 months (P > .05). Also, the LLLT group consumed fewer opiate painkillers during the first month (48.3 vs 60.3 mg of oxycodone, P = .02). In the LLLT group, the KSS at 3 and 12 months and the KSS function score at 3 months exceeded minimally clinically important differences (P < .05). Conclusions In the early stages of recovery after total knee arthroplasty, LLLT and Bioptron light therapy could be helpful to control immediate and acute knee pain and swelling, reduce the need for opioids, improve ROM and functional scores, and improve recovery. Level of Evidence Therapeutic level I.
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Affiliation(s)
| | | | | | - Seyed Mohammad Javad Mortazavi
- Corresponding author. Joint Reconstruction Research center, Imam Khomeini Hospital, Tehran University of Medical Science, End of Keshavarz Blvd, Tehran, Iran. Tel.: +98 21 6658 1586.
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Hwang WY, Kim YB, Lee SR, Suh DH, Kim K, No JH. Efficacy and safety of skin-adhesive low-level light therapy for overactive bladder: a Phase III study. Int Urogynecol J 2022; 33:3573-80. [PMID: 35389054 DOI: 10.1007/s00192-022-05153-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 02/18/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION AND HYPOTHESIS Overactive bladder (OAB) is a common condition that remains challenging to treat. We hypothesized that skin-adhesive low-level light therapy (LLLT) would be an effective treatment for OAB caused by bladder muscle contraction. Accordingly, we aimed to evaluate the efficacy and safety of an LLLT device for the treatment of OAB. METHODS This prospective, randomized, double-blind, placebo-controlled, multicenter trial included patients with a clinical diagnosis of OAB who were treated at either of two university hospitals. Patients were instructed to apply an LLLT device (Color DNA-WSF) or a sham device at home three times daily for 12 weeks. The primary outcome was the change in the mean daily number of urge urinary incontinence (UUI) episodes between baseline and 12 weeks. The secondary outcomes were the mean changes in incontinence, voiding, and nocturia episodes from baseline and the likelihood of achieving a > 50% reduction in UUI and incontinence episodes after 12 weeks. All patients completed the Overactive Bladder Symptom Score (OABSS), Urogenital Distress Inventory-6 (UDI-6), and Impact Urinary Incontinence-7 (IIQ-7) questionnaires. Safety parameters included treatment-emergent adverse events. RESULTS Compared with those in the sham group, the numbers of UUI and urinary incontinence episodes in the LLLT group were significantly decreased at week 12 (UUI, (-1.0 ± 1.7 vs. -0.4 ± 2.5, P = 0.003; urinary incontinence, -1.1 ± 1.9 vs. -0.5 ± 2.9, P=0.002). Furthermore, the OABSS, UDI-6, and IIQ-7 scores at week 12 tended to be better in the LLLT group than in the sham group. The incidence of device-related treatment-emergent adverse events was similar between groups. CONCLUSIONS LLLT may be clinically useful and safe for the treatment of OAB.
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Silva M, Gáspari A, Barbieri J, Caruso D, Nogueira J, Andrade A, Moraes A. A pilot study on the effects of far-infrared-emitting fabric on neuromuscular performance of knee extensor and male fertility. Lasers Med Sci 2022; 37:3713-3722. [PMID: 36274079 PMCID: PMC9589584 DOI: 10.1007/s10103-022-03657-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 10/04/2022] [Indexed: 11/28/2022]
Abstract
The aim of this study was to evaluate the time course of the effects of far-infrared emitting fabric (FIR) on neuromuscular performance of knee extensor over 120 h and to investigate whether the use of FIR affects semen. This is a crossover, randomized, double-blind, and placebo-controlled trial split into neuromuscular and fertility assessments. Four (28.8 ± 4.7 years old) and six (29 ± 3.9 years old) healthy, resistance-trained males completed all neuromuscular and fertility assessments, respectively. In neuromuscular assessments, for five consecutive days, the participants underwent neuromuscular tests in an isokinetic dynamometer (maximal isometric voluntary contraction (MVC) and fatigue test) every 24 h in both conditions (FIR and Placebo). In fertility assessments, participants performed three semen collections: Baseline, FIR, and Placebo. FIR and Placebo collections were performed after five consecutive days of use of the pants. Conventional parameters and sperm DNA fragmentation were evaluated. In the FIR condition, the participants showed significant differences in total work at 96 h (p < 0.001; Cohen’s d = 3.73), 120 h (p = 0.01; Cohen’s d = 2.65), and pre-MVC at 120 h (p = 0.02; Cohen’s d = 2.15) when compared to Placebo. FIR did not significantly (p > 0.05) affect the conventional semen parameters or sperm DNA fragmentation compared to Baseline or Placebo. FIR improved the knee extensor neuromuscular performance of healthy resistance-trained individuals, with 112.4 ± 7.8 h accumulated, and did not affect their seminal parameters (conventional or sperm DNA fragmentation), with 113.1 ± 10.2 h accumulated.
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Affiliation(s)
- Manoel Silva
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas, Campinas, São Paulo, Brazil, Av. Érico Veríssimo, 701, CEP 13083-851, Campinas, Brazil.
| | - Arthur Gáspari
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas, Campinas, São Paulo, Brazil, Av. Érico Veríssimo, 701, CEP 13083-851, Campinas, Brazil
| | - João Barbieri
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas, Campinas, São Paulo, Brazil, Av. Érico Veríssimo, 701, CEP 13083-851, Campinas, Brazil
| | - Danilo Caruso
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas, Campinas, São Paulo, Brazil, Av. Érico Veríssimo, 701, CEP 13083-851, Campinas, Brazil
| | | | | | - Antônio Moraes
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas, Campinas, São Paulo, Brazil, Av. Érico Veríssimo, 701, CEP 13083-851, Campinas, Brazil
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de Oliveira SV, Dos Reis T, Amorim J, Rocha FS, Marques MM, Guerra ES, Hanna R, Gallo CB. Efficacy of photobiomodulation therapy on healing of ionizing irradiated bone: a systematic review of in vivo animal studies. Lasers Med Sci 2022; 37:3379-3392. [PMID: 36194304 DOI: 10.1007/s10103-022-03649-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 09/22/2022] [Indexed: 12/09/2022]
Abstract
This systematic review aimed to answer the research focused question: What are the effects of photobiomodulation (PBM) therapy on bone healing after ionizing irradiation in animal models? The EMBASE, LILACS, LIVIVO, PubMed, Scopus, and Web of Science databases, including gray literature, were searched using the following keywords: "Head and Neck Neoplasms"; "Ionizing Radiation"; "Low-Level Light Therapy"; and "Bone regeneration", focusing on the primary studies that assessed the effects of PBM therapy on animal models of irradiated bone. Six studies have met the eligibility criteria and presented an overall regular quality according to the risk of bias assessment tools. All the studies utilized rat animal model and near-infrared laser PBM at low power output setting. Most of the studies showed increased new bone formation, osteocytes, osteoblasts, and vascularization networking, as a result of PBM therapy. However, only one out of the six studies has not shown any differences in bone healing in both lased and non-lased animal groups. Nevertheless, PBM therapy is a potential tool to improve bone healing induced by ionizing radiation. However, due to the scarce number of studies and the great variability of laser parameters and treatment protocols, a clear conclusion cannot be drawn. Hence, extensive preclinical in vivo studies are warranted to ensure these beneficial effects have been addressed prior to translational clinical trials.
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Affiliation(s)
- Samanta Vicente de Oliveira
- Department of Stomatology, School of Dentistry of the Universidade de Sao Paulo, Av. Prof. Lineu Prestes, 2227 - Butantã, Sao Paulo, SP, Brazil
| | - Thaís Dos Reis
- Department of Stomatology, School of Dentistry of the Universidade de Sao Paulo, Av. Prof. Lineu Prestes, 2227 - Butantã, Sao Paulo, SP, Brazil
| | - Juliana Amorim
- Laboratory of Oral Histopathology, Health Sciences Faculty of the University of Brasília, Brasilia, DF, Brazil
| | - Flaviana Soares Rocha
- Laboratory of Oral Histopathology, Health Sciences Faculty of the University of Brasília, Brasilia, DF, Brazil
| | - Márcia Martins Marques
- Post Graduation Program, School of Dentistry, Ibirapuera University, Sao Paulo, SP, Brazil
| | - Eliete Silva Guerra
- Laboratory of Oral Histopathology, Health Sciences Faculty of the University of Brasília, Brasilia, DF, Brazil
| | - Reem Hanna
- Department of Surgical Sciences and Integrated Diagnostics, Laser Therapy Centre of the University of Genoa, Genoa, Italy.,Department of Oral Surgery, King's College Hospital NHS Foundation Trust, London, UK
| | - Camila Barros Gallo
- Department of Stomatology, School of Dentistry of the Universidade de Sao Paulo, Av. Prof. Lineu Prestes, 2227 - Butantã, Sao Paulo, SP, Brazil.
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Tabosa ATL, Souza MG, de Jesus SF, Rocha DF, Queiroz LDRP, Santos EM, Guimarães VHD, Andrade LAA, Santos SH, de Paula AMB, de Souza PEN, Farias LC, Guimarães ALS. Effect of low-level light therapy before radiotherapy in oral squamous cell carcinoma: An in vitro study. Lasers Med Sci 2022. [PMID: 36001245 DOI: 10.1007/s10103-022-03632-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 08/14/2022] [Indexed: 10/15/2022]
Abstract
Radiation therapy for head and neck squamous cell carcinoma (HNSCC) is associated with several complications. Although photobiomodulation (PBM) has radioprotective effects in normal tissue, it could also enhance the growth of neoplastic cells. Thus, the present study aimed to investigate the cellular response of oral squamous cell carcinoma with pre-exposure to low-level phototherapy before radiotherapy. SCC9, Cal-27, A431, and HaCaT cell lines were subjected to low-level light therapy and radiotherapy. The cells were treated with a single energy density (300 J/cm2) of a light-emitting diode (660 nm) prior to ionizing radiation at different doses (0, 2, 4, and 6 Gy). After 24 h, wound scratch, proliferation, clonogenic cell survival, cell death, and reactive oxygen species (ROS) analyses were performed to evaluate cell response. The cell lines pre-exposed to PBM at the analyzed dosage were radiosensitive. The treatment significantly reduced cell proliferation and clonogenic cell survival. Migration and cell death assays also revealed positive results, with the treatment group showing lower rate of migration and higher cell death than did the control group. Moreover, PBM effectively increased the intracellular levels of ROS. PBM at 300 J/cm2 is a promising radiosensitizing modality to reduce the radiation dose and avoid the intolerable side effects of radiotherapy for HNSCC, thus increasing the probability of successful treatment. However, further studies are needed to support and confirm the results.
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Tehrani MR, Nazary-Moghadam S, Zeinalzadeh A, Moradi A, Mehrad-Majd H, Sahebalam M. Efficacy of low-level laser therapy on pain, disability, pressure pain threshold, and range of motion in patients with myofascial neck pain syndrome: a systematic review and meta-analysis of randomized controlled trials. Lasers Med Sci 2022; 37:3333-3341. [PMID: 35962884 DOI: 10.1007/s10103-022-03626-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 08/05/2022] [Indexed: 11/25/2022]
Abstract
Low-level laser therapy (LLLT) is one of recent modalities for treatment of myofascial neck pain (MNP). Several RCTs have been conducted on its effectiveness. The aim of this comprehensive meta-analysis was to evaluate the effectiveness of LLLT on MNP. Electronic databases were searched for identifying eligible studies comparing the effectiveness of LLLT using any wavelength with placebo or active control in myofascial neck pain up to June 2022. Data related to pain intensity, pain pressure threshold (PPT), range of motion (ROM), and disability was analyzed as a pooled estimate of mean difference or standard mean difference (SMD) with 95% confidence intervals (CIs) using random/fixed-effect model. Funnel plot and Egger's linear regression test were also conducted to examine the risk of publication bias. A total of 13 randomized controlled trials were included in this systematic review and meta-analysis. The data assessing laser effectiveness on different outcomes of 556 patients were considered for meta-analysis. Pooled results revealed that LLLT was significantly effective in pain reduction (MD = - 1.29, 95% CI = - 2.36; - 0.23, P < 0.001). Also, secondary outcomes including PPT (SMD of 2.63, 95% CI = 0.96; 4.30, P < 0.01) and right bending ROM (SMD of 3.44, 95% CI = 0.64; 6.24, P < 0.01) were improved, while disability (MD of - 7.83, 95% CI = - 17.1; 0.08, P = 1.34) did not improve significantly after LLLT. Our meta-data revealed that LLLT may reduce myofascial neck pain and its related outcomes. LLLT is suggested to be used by clinicians along with other therapies such as manual and exercise therapy.
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Affiliation(s)
- Mohammad Reza Tehrani
- Department of Physical Therapy, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Physical Therapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Salman Nazary-Moghadam
- Department of Physical Therapy, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Afsaneh Zeinalzadeh
- Department of Physical Therapy, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Moradi
- Orthopaedic Research Center, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
- Clinical Research Development Unit, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hassan Mehrad-Majd
- Cancer Molecular Pathology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohamad Sahebalam
- Department of Physical Therapy, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
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Cetira Filho EL, Silva PGB, Wong DVT, Choquenaira-Quispe C, Cesário FRAS, de Sousa Nogueira G, de Sousa AVC, de Aguiar ASW, da Cruz Fonseca SG, Costa FWG. Effect of preemptive photobiomodulation associated with nimesulide on the postsurgical outcomes, oxidative stress, and quality of life after third molar surgery: a randomized, split-mouth, controlled clinical trial. Clin Oral Investig 2022; 26:6941-6960. [PMID: 35948699 PMCID: PMC9365445 DOI: 10.1007/s00784-022-04649-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 07/16/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVE The aim of this study is to compare the effect of photobiomodulation with low-level laser therapy (LLLT) and nimesulide on inflammatory parameters, biomarkers of oxidative stress and inflammation, and quality of life after lower third molar (L3M) surgery. MATERIAL AND METHODS A randomized, two-factor, triple-blind, controlled, split-mouth clinical trial was performed with 40 volunteers who required bilateral L3M removal. Patients were allocated depending on the use or not of 100 mg nimesulide 1 hbefore surgery, as well as the use or not of LLLT in the preoperative period. RESULTS Pain peaks occurred after 6 h (nimesulide-placebo [N-P] group) and 8 h (nimesulide group). In the N-P group, LLLT resulted in significantly lower mean pain scores than the subgroup without LLLT after 4 h (p = 0.009) and 6 h (p = 0.048). As for edema, a shorter distance between the mandibular angle and the outer canthus of the eyes after 7 days (p = 0.037) and a smaller cumulative effect (p = 0.036) were observed in the N-P group associated with LLLT. A direct effect between LLLT (p = 0.047) and a reduction in the mean scores of overall dissatisfaction with quality of life was detected. CONCLUSIONS Preemptive use of nimesulide only delayed peak pain. LLLT reduced edema, trismus, and contributed to a better perception of quality of life. Nimesulide inhibits peroxidation by increasing GSH and stopping neutrophil migration. The benefit of the association of both strategies was not superior to the use of LLLT alone. CLINICAL RELEVANCE Translational study with impact on clinical-surgical protocols involving L3M surgery related to pharmacological and non-pharmacological methods.
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Affiliation(s)
- Edson Luiz Cetira Filho
- Division of Oral and Maxillofacial Surgery, Postgraduate Program in Dentistry, Federal University of Ceará, Fortaleza, Ceará, Brazil.,UNICHRISTUS, Fortaleza, Ceará, Brazil
| | | | - Deysi Viviana Tenazoa Wong
- Department of Physiology and Pharmacology - FAMED, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Celia Choquenaira-Quispe
- Laboratory of Pharmacology of Inflammation and Cancer (LAFICA), Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Ceará, Brazil
| | - Francisco Rafael Alves Santana Cesário
- Laboratory of Pharmacology of Inflammation and Cancer (LAFICA), Postgraduate Program in Pharmacology, Federal University of Ceará, Fortaleza, Ceará, Brazil.,Federal University of Ceará, Fortaleza, Ceará, Brazil
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de Oliveira PR, Arrebola LS, Stéfani KC, Pinfildi CE. Photobiomodulation Associated With Conservative Treatment for Achilles Tendon Rupture: A Double-Blind, Superiority, Randomized Controlled Trial. Arch Rehabil Res Clin Transl 2022; 4:100219. [PMID: 36545533 PMCID: PMC9761261 DOI: 10.1016/j.arrct.2022.100219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Objective To investigate the effects of photobiomodulation on Achilles tendon rupture (ATR) treated conservatively. Design Prospective, patient- and assessor-blinded, parallel, randomized controlled trial. Setting Patients with acute ATR treated conservatively. Participants Thirty-four male individuals with acute unilateral ATR treated conservatively (N=34), equally divided in 2 groups: photobiomodulation group (PBMG) and sham group, with mean age of 45.5±9.47 and 48.7±8.38 years, respectively. Intervention All participants underwent through an immobilization period, followed by rehabilitation sessions (2 d/wk for 12 weeks) comprising strengthening, range of motion, and balance/weightbearing exercises. In PBMG, the tendon was irradiated with a photobiomodulation cluster (1 904 nm/50 mW infrared laser, 4 858 nm/50 mW infrared diodes, and 4 658 nm/40 mW red diodes; power density of 105 mW/cm2 per cluster area) during the immobilization period (2 d/wk for 8 weeks) and the sham group received a simulation of the procedure with no irradiation. Outcomes were assessed at the removal of the immobilization 12 and 16 weeks after tendon rupture. Main Outcome Measures Primary outcome was the Achilles Tendon Rupture Score. Secondary outcomes included Numerical Pain Rating Scale at rest and during effort, plantar flexor strength, and ankle range of motion. Results Both groups demonstrated an increase in the Achilles Tendon Rupture Score and improvements in range of motion, plantar flexor strength, and pain. There were no significant differences in outcomes between the 2 groups (P>.05) except in pain during walking, which was significantly lower in the PBMG in week 12 (P<.01, effect size=0.56) and week 16 (P<.01, effect size=0.55). Conclusion Photobiomodulation associated with conservative treatment is not superior to conservative treatment alone for improving function in patients with acute ATR.
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Key Words
- ATR, Achilles tendon rupture
- ATRS, Achilles Tendon Rupture Score
- Achilles tendon
- CI, confidence interval
- ES, effect size
- IAMSPE, Institute of Medical Assistance to the State Public Servant
- Low-level light therapy
- NPRS, Numerical Pain Rating Scale
- PBM, photobiomodulation
- PBMG, photobiomodulation group
- ROM, range of motion
- Rehabilitation
- SG, sham group
- WALT, World Association for Photobiomodulation Therapy
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Affiliation(s)
- Pedro Rizzi de Oliveira
- Department of Human Movement Sciences, Federal University of São Paulo (UNIFESP), Baixada Santista Campus, São Paulo,Physical Therapy Department, Institute of Medical Assistance to the State Public Servant (IAMSPE), São Paulo,Corresponding author Pedro Rizzi de Oliveira, PT, MSc, Department of Human Movement Sciences, Federal University of São Paulo (UNIFESP), Rua Silva Jardim, 136 Vila Matias, Santos, São Paulo 11015-020.
| | - Lucas Simões Arrebola
- Department of Human Movement Sciences, Federal University of São Paulo (UNIFESP), Baixada Santista Campus, São Paulo,Physical Therapy Department, Institute of Medical Assistance to the State Public Servant (IAMSPE), São Paulo
| | - Kelly Cristina Stéfani
- Center of Technological Innovation, University of Sao Paulo Hospital of Clinics (HC-FMUSP), São Paulo, Brazil
| | - Carlos Eduardo Pinfildi
- Department of Human Movement Sciences, Federal University of São Paulo (UNIFESP), Baixada Santista Campus, São Paulo
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Kheradmand A, Tabeie F, Seif P, Rezaei O, Yasamy MT. Effect of low-level laser therapy (LLLT) on cognitive impairment among patients with chronic schizophrenia: a double-blind randomized placebo-controlled clinical trial. Lasers Med Sci 2022; 37:2717-2725. [PMID: 35314926 DOI: 10.1007/s10103-022-03545-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 03/10/2022] [Indexed: 10/18/2022]
Abstract
Low-level laser therapy (LLLT) is a noninvasive technique used in different medical fields. It has been applied in different medical areas such as wound healing, traumatic brain injuries, neurological disorders, cognitive disorders, Alzheimer's disease, pain, and arthritis, with different results. We studied the effectiveness of LLLT on cognitive impairment in patients with chronic schizophrenia. A randomized controlled double-blind clinical trial was performed in a men's chronic treatment center, in Razi Psychiatric Hospital, in Tehran, Iran. We screened the cognitive impairment by Mini-Mental State Examination (MMSE). Positive And Negative Syndrome Scale (PANSS) was also used to assess the patients' positive and negative symptoms. Seventeen consenting patients were randomly allocated to the treatment arm, and 15 to the sham treatment control arm. The mean age of the control and treated patients was 49.47 ± 6.99 and 50.24 ± 7.69, respectively. No significant difference in PANSS and MMSE test scores was detected in both groups after the 6th session and after 2 months of follow-up after laser therapy. The positive and negative scales and agitation and excitement levels did not change significantly in either group. Nevertheless, the depression/anxiety subscale in the PANSS test showed a significant reduction after 6 sessions but did not persist after 2 months. No improvement in cognitive impairment or the positive and negative symptoms was detected after LLLT in patients with chronic schizophrenia. Trial registration: IRCT 20210520051349N1.
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Affiliation(s)
- Ali Kheradmand
- Department of Psychiatry, Taleghani Hospital Research Development Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Faraj Tabeie
- Department of Basic Sciences, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Pegah Seif
- Department of Psychiatry, Taleghani Hospital Research Development Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Omid Rezaei
- Department of Psychiatry, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Mohammad Taghi Yasamy
- Department of Psychiatry, Taleghani Hospital Research Development Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Ansari S, Charantimath S, Lagali-Jirge V, Keluskar V. Comparative efficacy of low-level laser therapy (LLLT) to TENS and therapeutic ultrasound in management of TMDs: a systematic review & meta-analysis. Cranio 2022:1-10. [PMID: 35315745 DOI: 10.1080/08869634.2022.2050975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To assess the reduction in pain, muscle tenderness, joint clicking, and improvement in mouth opening (MO) after low-level laser therapy (LLLT) compared to transcutaneous electrical nerve stimulation (TENS) and therapeutic ultrasound (US) among temporomandibular joint disorder (TMD) patients. METHODS A systematic search of online sources of electronic databases was undertaken. The quality of the study was assessed using the Cochrane risk of bias assessment tool for randomized controlled trials (RCTs). RESULTS Twelve RCTs were included in the systematic review, and 9 were included in the meta-analysis. For reduction in pain between LLLT and TENS, LLLT was found to be better than TENS, at 95% CI. LLLT was also proven to be better in reducing pain than therapeutic US, at 81% CI. CONCLUSION This systematic review and meta-analysis compared the effectiveness of LLLT, TENS, and therapeutic US in TMD. LLLT provided relatively more effective pain relief and improvement in MO.
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Affiliation(s)
- Sulem Ansari
- Department of Oral Medicine and Radiology, KAHER's KLE VK Institute of Dental Sciences, Belagavi, India
| | - Shivayogi Charantimath
- Department of Oral Medicine and Radiology, KAHER's KLE VK Institute of Dental Sciences, Belagavi, India
| | - Vasanti Lagali-Jirge
- Department of Oral Medicine and Radiology, KAHER's KLE VK Institute of Dental Sciences, Belagavi, India
| | - Vaishali Keluskar
- Department of Oral Medicine and Radiology, KAHER's KLE VK Institute of Dental Sciences, Belagavi, India
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Simões TMS, de Alencar Fernandes Neto J, Nonaka CFW, de Vasconcelos Catão MHC. Effects of photobiomodulation therapy with red LED on inflammatory cells during the healing of skin burns. Lasers Med Sci 2022; 37:2817-2822. [PMID: 35237887 DOI: 10.1007/s10103-022-03537-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 02/23/2022] [Indexed: 11/25/2022]
Abstract
The aim of this study was to evaluate the effects of red light emitting diode (LED) photobiomodulation therapy protocol on inflammatory cells during the healing of third-degree skin burns. Fifty Wistar rats were randomly divided into control group (CTRL) (n = 25) and red group (RED) (n = 25), with subgroups (n = 5) for each time of euthanasia (7, 14, 21, 28, and 32 days). Treatment animals were daily irradiated (630 nm ± 10 nm, 300 mW, 9 J/cm2 per point, 30 s, continuous emission mode) at the 4 angles of the wound (total: 36 J/cm2). After specimen removal, histological sections were stained with hematoxylin and eosin for quantitative analysis of the inflammatory infiltrate (neutrophils and lymphocytes) under light microscopy. Greater number of inflammatory cells was observed in irradiated groups when compared to CTRL at 7, 14, 21, and 28 days, but with statistically significant difference only at 14 days (p = 0.02). At 32 days, higher inflammatory cell value was observed in CTRL when compared to RED, but with no statistically significant difference (p = 0.91). The results suggest that red LED, according to the protocol used, modulates the number of inflammatory cells in the early stages of the healing of third-degree skin burns. Nevertheless, this low-intensity light therapy may not, be efficient in reducing the number of neutrophils and lymphocytes in advanced stages of the repair process of skin burns. Further studies with other therapy protocols are needed to assess the effects of this type of light on the inflammatory response of skin burns.
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Silva M, Gáspari A, Barbieri J, Barroso R, Figueiredo G, Motta L, Moraes A. Far-infrared-emitting fabric improves neuromuscular performance of knee extensor. Lasers Med Sci 2022; 37:2527-2536. [PMID: 35146580 DOI: 10.1007/s10103-022-03523-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 02/04/2022] [Indexed: 11/29/2022]
Abstract
The aim of this study was to verify if exposure to the far-IR emitted by fabric (FIR) is able to improve the neuromuscular performance of the knee extensors of resistance-trained males regardless of changes of the temperature. It is a crossover, randomized, double-blind, and placebo-controlled trial. Fourteen resistance-trained males (age: 24.3 ± 4 years; body mass: 82.8 ± 11.3 kg; height: 176.3 ± 4.2 cm) were randomly assigned to one of initial conditions: FIR (n = 7) or placebo (n = 7). After 4 days, the participants were submitted to neuromuscular tests in an isokinetic dynamometer (maximal isometric voluntary contraction (MVC) and fatigue test). After a week of washout, participants performed the other condition. We measured peak torque (Nm), total work (J), fatigue index (%), root mean square (mV), median frequency (Hz), and temperature (°C) of thigh. The FIR was worn for 82 ± 19 h before the experimental session, totaling 317 ± 74 kJ of energy irradiation. There was a significant increase (p < 0.05) for pre-MVC (318.5 ± 68.7 Nm) and post-MVC (284.1 ± 58.2 Nm), and a trend (p = 0.055) for significant increase for total work (4,122.2 ± 699.8 J) on FIR condition regardless of none change on temperature and electromyographic (EMG) signals. FIR improved the neuromuscular performance of knee extensors in resistance-trained males regardless of changes on temperature and EMG. The present results suggest that the FIR could optimize the neuromuscular performance with 82 ± 19 h of wear.
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Affiliation(s)
- Manoel Silva
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas (UNICAMP), Av. Érico Veríssimo, 701, São Paulo, Campinas, CEP 13083-851, Brazil.
| | - Arthur Gáspari
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas (UNICAMP), Av. Érico Veríssimo, 701, São Paulo, Campinas, CEP 13083-851, Brazil
| | - João Barbieri
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas (UNICAMP), Av. Érico Veríssimo, 701, São Paulo, Campinas, CEP 13083-851, Brazil
| | - Renato Barroso
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas (UNICAMP), Av. Érico Veríssimo, 701, São Paulo, Campinas, CEP 13083-851, Brazil
| | - Gabriel Figueiredo
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas (UNICAMP), Av. Érico Veríssimo, 701, São Paulo, Campinas, CEP 13083-851, Brazil
| | - Leonardo Motta
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas (UNICAMP), Av. Érico Veríssimo, 701, São Paulo, Campinas, CEP 13083-851, Brazil
| | - Antônio Moraes
- Laboratory of Electromyography Studies, Department of Sport Science, School of Physical Education, University of Campinas (UNICAMP), Av. Érico Veríssimo, 701, São Paulo, Campinas, CEP 13083-851, Brazil
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Zhu S, Ma X, Ding X, Gan J, Deng Y, Wang Y, Sun A. Comparative evaluation of low-level light therapy and ethinyl estradiol and desogestrel combined oral contraceptive for clinical efficacy and regulation of serum biochemical parameters in primary dysmenorrhoea: a prospective randomised multicentre trial. Lasers Med Sci 2022; 37:2239-2248. [PMID: 35028764 PMCID: PMC8758216 DOI: 10.1007/s10103-021-03490-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 12/03/2021] [Indexed: 11/26/2022]
Abstract
We aimed to compare low-level light therapy with oral contraceptive pills for pain relief and serum levels of nitric oxide and prostaglandin E2 in patients with primary dysmenorrhoea. This was a randomised, active comparator-controlled, multicentre study. In total, 156 patients were randomised to receive either low-level light therapy with light-emitting diodes (LED) applying on two acupoints, namely, conception vessel 4 (CV4) and CV6 or conventional treatment with oral Marvelon, 30 µg of ethinyl estradiol and 150 µg of desogestrel (DSG/EE), for three consecutive menstrual cycles. The main outcome was the proportion of patients who achieved 33% or more decrease in pain scores measured using the visual analogue scale, which was deemed as efficient rate. Absolute changes in visual analogue scale scores, serum levels of nitric oxide (assessed by nitrites and nitrates reflecting nitric oxide metabolism) and prostaglandin E2 (measured by enzyme-linked immunosorbent assay) were the secondary outcomes. A total of 135 patients completed the study (73 in the light therapy group and 62 in the DSG/EE group). The efficient rate at the end of treatment was comparable between the groups (73.6% vs. 85.7%, χ2 = 2.994, p = 0.084). A more significant reduction in pain scores was observed in the DSG/EE group (39.25% vs. 59.52%, p < 0.001). Serum levels of prostaglandin E2 significantly decreased from baseline but did not differ between groups (- 109.57 ± 3.99 pg/mL vs. - 118.11 ± 12.93 pg/mL, p = 0.51). Nitric oxide concentration remained stable in both groups. Low-level light therapy with LED-based device applied on acupuncture points CV4 and CV6 demonstrated a similar level of dysmenorrhoea pain reduction to DSG/EE combined contraceptive. Both treatment modalities achieved clinically meaningful levels of pain reduction. Registration on ClinicalTrials.gov: TRN: NCT03953716, Date: April 04, 2019.
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Affiliation(s)
- Shiyang Zhu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Shuaifuyuan No. 1, Dongcheng District, Beijing, China
| | - Xiao Ma
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Shuaifuyuan No. 1, Dongcheng District, Beijing, China
| | - Xuesong Ding
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Shuaifuyuan No. 1, Dongcheng District, Beijing, China
| | - Jingwen Gan
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Shuaifuyuan No. 1, Dongcheng District, Beijing, China
| | - Yan Deng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Shuaifuyuan No. 1, Dongcheng District, Beijing, China
| | - Yanfang Wang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Shuaifuyuan No. 1, Dongcheng District, Beijing, China
| | - Aijun Sun
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Shuaifuyuan No. 1, Dongcheng District, Beijing, China.
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Faustino ISP, Georgaki M, Santos-Silva AR, Vargas PA, Lopes MA. Head and neck radiotherapy leading to extensive late oral soft-tissue necrosis. Oral Oncol 2022; 125:105710. [PMID: 35032781 DOI: 10.1016/j.oraloncology.2021.105710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/24/2021] [Accepted: 12/29/2021] [Indexed: 12/25/2022]
Abstract
Radiotherapy is generally used as an adjuvant treatment in malignant head and neck tumors, which can cause a series of toxicities to tissues involved in the radiation field. Hard tissue necrosis surrounding the tumor is widely debated and recognized; however, oral mucosa necrosis as a late effect of head and neck radiotherapy is a toxicity that has been little explored and understood in the literature. The present report describes a 53-year-old Caucasian, diabetic man with a painful yellowish mass in the buccal mucosa, remaining oral mucositis with history of radiotherapy completed 90 days ago as adjuvant treatment for a polymorphic adenocarcinoma in the palate. Photobiomodulation was used as therapy for tissue necrosis with good therapeutic response despite discontinuation of treatment by the patient. Since there are few descriptions and illustrations of radiotherapy-related soft tissue necrosis, the current case may bring some new experience with this important topic, which directly impacts on the patient's quality of life.
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Affiliation(s)
| | - Maria Georgaki
- Department of Oral Medicine & Pathology and Hospital Dentistry, School of Dentistry, National and Kapodistrian University of Athens, Greece
| | - Alan Roger Santos-Silva
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Pablo Agustin Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Marcio Ajudarte Lopes
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.
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Miranda DTH, Hoeppner MG, Garbelini CCD, de Oliveira Toginho Filho D, de Souza IC, Yoshida NM, Terada RSS. LED photobiomodulation effect on the bleaching-induced sensitivity with hydrogen peroxide 35%-a controlled randomized clinical trial. Clin Oral Investig 2022. [PMID: 34997849 DOI: 10.1007/s00784-021-04352-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 12/27/2021] [Indexed: 11/03/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate the effect of a protocol of photobiomodulation (PBM) with light-emitting diodes (LED) on the clinical risk of bleaching-induced sensitivity. MATERIALS AND METHODS Sixty-four volunteers were selected and randomly divided in two groups, placebo (PG) and LED (LG). The LG received PBM irradiation and tooth bleaching, while the PG received tooth bleaching and simulation of the irradiation. The occurrence of painful sensitivity was recorded during the dental bleaching; immediately after bleaching; and 24, 48, and 72 h after tooth bleaching. At the same measurement times, data were collected on the intensity of sensitivity (VAS and NRS scale) and teeth affected by bleaching-induced sensitivity. A questionnaire sought to measure how the painful sensitivity influenced basic daily activities. Tooth color measures were performed using subjective and objective methods. RESULTS LED irradiation decreased the occurrence of sensitivity at all studied evaluation times as well as its intensity, with the exception of the 72-h data when both groups presented no difference. Teeth affected by bleaching-induced sensitivity were significantly greater in the PG. Color measurements presented no differences between the groups in the recently after and later measures. CONCLUSIONS PBM with LED decreases sensitivity risk and sensibility intensity during and after office bleaching and causes no influence on the shade degree of whitening achieved. The decrease in tooth sensitivity provided more comfort and less suffering while drinking. CLINICAL RELEVANCE LED irradiation is a promising intervention in the control of bleaching-induced sensitivity. TRIAL REGISTRATION RBR-7hpfwj. Sensitivity intensity measured by the VAS scale (0-10) in the first whitening session (Graphic A) and second whitening session (Graphic B). Significance level set at ≤ 5%. *Mann-Whiteney U test. Columns followed by the same letter are significant different (ap < 0.001; bp < 0.001; cp < 0.001; dp =0.013; ep < 0.001; fp < 0.001; gp < 0.001; hp = 0.002).
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Shan Z, Ji J, McGrath C, Gu M, Yang Y. Effects of low-level light therapy on dentin hypersensitivity: a systematic review and meta-analysis. Clin Oral Investig 2021; 25:6571-6595. [PMID: 34642786 PMCID: PMC8602177 DOI: 10.1007/s00784-021-04183-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 09/18/2021] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To investigate the treatment efficacy of low-level light therapy on dentin hypersensitivity. MATERIALS AND METHODS Following the PRISMA guideline, six electronic databases supplemented with bibliographies were searched till December 2020. Two reviewers performed the screenings independently with a reliability assessment. Studies fulfilling the pre-registered eligibility criteria were included for risk-of-bias assessment and data synthesis. RESULTS Thirty-five articles ultimately informed this systematic review based on the eligibility criteria and underwent risk-of-bias assessment (ĸ = 0.86). Quantitative results were deduced by meta-analysis of 20 randomised controlled trials: LLLT showed favourable outcomes compared to placebos for immediate (SMD: 1.09, 95% CI: 0.47 to 1.70), interim (SMD: 1.32, 95% CI: 0.41 to 2.23), and persistent efficacies (SMD: 2.86, 95% CI: 1.98 to 3.74). However, substantial heterogeneity existed among included studies (I2: 64-95%). Regarding comparisons with other desensitising strategies, LLLT showed no significant benefits in DH alleviation over others except fluorides for interim efficacy (SMD: 0.31, 95% CI: 0.10 to 0.52) and persistent efficacy (SMD: 0.45, 95% CI: 0.03 to 0.86). CONCLUSIONS This systematic review shows that LLLT has positive immediate, interim, and persistent DH-treatment efficacies compared with placebo. No superior treatment effects of LLLT were observed except fluoride agent use. Further studies are warranted-RCTs with low risk of bias, consistent technical settings, comprehensive assessments, and long follow-up periods. CLINICAL RELEVANCE This systematic review bridges a critical research gap by analysing clinical evidence in the DH-alleviating efficacy of LLLT in comparison with placebo and other in-office desensitising strategies.
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Affiliation(s)
- Zhiyi Shan
- Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong SAR, China
| | - Juanjuan Ji
- Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong SAR, China
- Department of Stomatology, Second People's Hospital of Yunnan Province, Kunming, People's Republic of China
| | - Colman McGrath
- Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong SAR, China
| | - Min Gu
- Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong SAR, China
| | - Yanqi Yang
- Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong SAR, China.
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Farzan A, Khaleghi K. The Effectiveness of Low-Level Laser Therapy in Pain Induced by Orthodontic Separator Placement: A Systematic Review. J Lasers Med Sci 2021; 12:e29. [PMID: 34733752 DOI: 10.34172/jlms.2021.29] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 01/06/2021] [Indexed: 01/20/2023]
Abstract
Introduction: This systematic review was conducted to evaluate the effectiveness of low-level laser therapy (LLLT) in orthodontic separator pain. Methods: This article was written according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist. Electronically and manually 3 databases, namely PubMed, Scopus and Google Scholar, were searched by the keywords that were selected based on population, intervention, comparison and outcome (PICO) on October 10, 2020. Studies were appraised by Cochrane version 5.2.0 with 7 domains and were checked by these inclusion criteria: 1. Randomized clinical trial (RCT) that examined the efficacy of LLLT in separator pain, 2. Split-mouth design, 3. LLLT application in the first hours after separator placement, 4. LLLT application to both sides of the teeth, 5. Patients receiving elastomeric separators between the premolars and molars, 6. Lasers with a wavelength of 800-899 nm, 7. Studies conducted from 2010 to 2020, and 8. Participants who went through orthodontic treatment without limitation in gender, age and social-economic status. Results: 299 studies were screened. 34 full-text papers were read by 2 authors independently. In the end, 4 articles met the inclusion criteria. All 4 articles showed LLLT has a significant impact on pain reduction. Conclusion: The exact protocol for laser therapy is still not clear. Therefore, more studies with a meticulously designed method are needed.
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Affiliation(s)
- Arash Farzan
- Department of Orthodontics, School of dentistry, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Katayoon Khaleghi
- Dental student, Students' Research office, Zanjan University of Medical Sciences, Zanjan, Iran
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de Oliveira MC, Krueger GF, Sganzerla JT, Gassen HT, Hernández PAG, Allgayer MDC, Miguens-Jr SAQ. Effect of Radiotherapy and Low-Level Laser Therapy on Circulating Blood Cells of Rats. J Lasers Med Sci 2021; 12:e45. [PMID: 34733768 DOI: 10.34172/jlms.2021.45] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 02/22/2021] [Indexed: 11/09/2022]
Abstract
Introduction: This study aimed to investigate the effect of low-level laser therapy (LLLT) on the blood cell count when applied to parotid glands of rats irradiated by volumetric modular arc therapy (VMAT). Methods: Thirty-two adult male Wistar rats were used in this study. Samples were randomly assigned to three groups: control group (CG, n = 8), immediate laser group (24 hours) (ILG, n=12), and late laser group (120 hours) (LLG, n=12). The two laser groups were previously subjected to VMAT radiotherapy in a single dose of 12 Gy. LLLT with an AsGaAl laser (660 nm, 100 mW) was applied at three points in the region of the parotid glands, right side, with the energy of 2 J per point (20s, 70 J/cm2) and a spot size of 0.0028 cm2 for 10 consecutive days. In the euthanasia, blood samples were obtained by cardiac puncture. The samples from each group were processed by an automatic method and analyzed for erythrogram, leukogram and platelet count values. The data were analyzed by ANOVA and each LLLT time point was analyzed in relation to the control group, with a significance level less than 0.05. Results: Groups using LLLT had higher red blood cell counts, being higher in the LLG (P = 0.000). The hematimetric indices MCV (P = 0.002) and MCH (P = 0.009) were lower than the control group, especially when compared to the group using LLLT 120h after radiotherapy (LLG). White blood cell counts were lower in the groups with radiotherapy and immediate use of LLLT (ILG) (P = 0.011), mainly at the expense of lymphocytes (P = 0.002). Conclusion: The results suggest a potential systemic effect of LLLT, especially on circulating red blood cell counts, regardless of their time of immediate or late use of radiotherapy.
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Affiliation(s)
| | - Gabriel Francisco Krueger
- Department of Oral Medicine, Graduate Program in Dentistry, Universidade Luterana do Brasil, Canoas, RS, Brazil
| | - Juliana Tomaz Sganzerla
- Department of Oral Medicine, Graduate Program in Dentistry, Universidade Luterana do Brasil, Canoas, RS, Brazil
| | - Humberto Thomazi Gassen
- Department of Oral Medicine, Graduate Program in Dentistry, Universidade Luterana do Brasil, Canoas, RS, Brazil
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Arshad M, Ghanavati Z, Aminishakib P, Rasouli K, Shirani G. Effect of Light-Emitting Diode Phototherapy on Allograft Bone After Open Sinus Lift Surgery: A Randomized Clinical Trial (Concurrent Parallel). J Lasers Med Sci 2021; 12:e16. [PMID: 34733739 DOI: 10.34172/jlms.2021.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: Phototherapy with a light-emitting diode (LED) is used in medicine due to its potential bio-stimulatory effects on the human body. However, controversy still exists regarding the efficacy of low-level laser therapy (LLLT) and phototherapy with LED. This in vivo study aimed to quantitatively and qualitatively assess the newly formed bone following LED phototherapy of the human maxillary sinuses. Methods: This randomized clinical trial (concurrent parallel) was conducted on 44 patients in two groups (n=22) at the Implant Department of Tehran University of Medical Sciences. Randomization was done by a random sequence generator program. The inclusion criteria were absence of chronic sinusitis and chronic bone marrow conditions, no history of surgery at the site, absence of diabetes mellitus, no history of chemotherapy or radiotherapy, maxillary premolar edentulism, and signing informed consent forms. Group A underwent LED phototherapy with 620 ± 2 nm wavelength for 20 minutes daily for a total of 21 days after sinus lift surgery. Group B served as the control group and did not receive phototherapy. After 6 months, the grafted sites were re-opened for implant placement, and bone biopsy samples were obtained using a trephine bur. The samples were stained with hematoxylin and eosin and inspected under a light microscope. The results were statistically analyzed using the Mann-Whitney U test. Both the surgeon and pathologist were blinded to the group allocation of patients. Results: Forty tissue specimens were analyzed. Insignificant differences existed between the two groups in terms of the degree of inflammation, bone quality, and maturity of collagen. Histological analyses revealed no significant difference in the mineralized areas of bone between the two groups (P >0.05). Conclusion: The results indicated that LED phototherapy cannot significantly enhance osteogenesis after sinus lift surgery. No side effects were observed in the experimental group.
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Affiliation(s)
- Mahnaz Arshad
- Associate Professor, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran Iran.,Department of Prosthodontics, School of Dentistry, International Campus, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Ghanavati
- D.D.S., School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Pouyan Aminishakib
- Associate Professor, Oral and Maxillofacial Pathologist, Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Kamran Rasouli
- Dental Student, School of Dentistry, International Campus, Tehran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Shirani
- Associate Professor, Department of Oral and Maxillofacial Surgery, Craniomaxillofacial Research Center, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
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Carboni RM, Gonçalves MLL, Tacla EM, Silva DFT, Bussadori SK, Fernandes KPS, Horliana ACRT, Mesquita-Ferrari RA. The effects of photobiomodulation using LED on the repair process of skin graft donor sites. Lasers Med Sci 2021. [PMID: 34713365 DOI: 10.1007/s10103-021-03447-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 10/15/2021] [Indexed: 10/20/2022]
Abstract
The benefits of photobiomodulation (PBM) applied to wounds are well-described in the literature; however, its effects in skin graft donor sites have been poorly studied. The aim of this study is to evaluate the effects of LED PBM on re-epithelialization and wound quality of the skin donor site and on pain during repair process. This is a case series study that part of the patients received standard treatment and the others received standard treatment combined with PBM. Data collection was performed at the Burn Unit at a Public Hospital, Brazil. The study had 21 participants and 25 donor sites, 13 in the control group (conventional treatment with Membracel® bandage) and 12 in the experimental group (Membracel® + LED). Irradiation parameters were 1.53 J/cm2, 2.55 mW/cm2, 660 nm, 600 s in the immediate postoperative period as well as on the 1st, 3rd, 5th, and 7th days postoperatively. Pain was measured using the visual analog scale. The Bates-Jensen scale was used to monitor the re-epithelialization process and measurements were performed of donor skin sites in the postoperative period. Quantitative variables were expressed as mean ± standard deviation or median and interquartile range [p25; p75]. The comparison of the distribution of these variables between groups was performed using the Mann-Whitney test. No differences between groups were found for re-epithelialization time, area or quality of the wound. Regarding pain, a significant reduction was found on the 5th postoperative day in the experimental group compared to the control group. PBM did not induce changes in the re-epithelialization period, wound area or wound quality scores of the Bates-Jensen Scale but did induce a reduction in pain compared to the group treated with Membracel® alone.
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Affiliation(s)
- Guillaume Klausner
- Oncology - Radiotherapy, Pierre and Marie Curie University, Paris Sorbonne University, 91-105 Boulevard de l'Hôpital, 75013, Paris, France
| | - Idriss Troussier
- Oncology - Radiotherapy, Centre de Haute Énergie (CHE), 10 Boulevard Pasteur, 06000, Nice, France.,Radio-Oncology, University Hospitals of Geneva (HUG), Rue Gabrielle-Perret-Gentil 4, 1205, Geneva, Switzerland
| | - Charles-Henry Canova
- Oncology - Radiotherapy, Centre de Haute Énergie (CHE), 10 Boulevard Pasteur, 06000, Nice, France
| | - René-Jean Bensadoun
- Oncology - Radiotherapy, Centre de Haute Énergie (CHE), 10 Boulevard Pasteur, 06000, Nice, France.
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Soares LES, Guirado MMG, Berlingieri G, Ramires MCCH, Lyra LADOP, Teixeira IS, Oliveira PC, Tateno RY, Palma LF, Campos L. Intranasal photobiomodulation therapy for COVID-19-related olfactory dysfunction: A Brazilian multicenter case series. Photodiagnosis Photodyn Ther 2021; 36:102574. [PMID: 34628071 PMCID: PMC8496972 DOI: 10.1016/j.pdpdt.2021.102574] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/29/2021] [Accepted: 10/04/2021] [Indexed: 12/28/2022]
Abstract
Olfactory dysfunction is commonly seen in COVID-19 patients; however, little is known about the pathophysiology and management. The present study aimed to report a series of cases in which three protocols of intranasal photobiomodulation therapy (PBMT) were used for COVID-19-related olfactory dysfunction. Irrespective of the PBMT protocol, olfaction recovery was noted in all cases but with varying degrees of improvement. Although intranasal PBMT seems to be a promising therapeutic modality, more research is needed to better define effectiveness.
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Affiliation(s)
- Luís Eduardo Silva Soares
- Graduate Program in Biomedical Engineering, University of Vale do Paraíba (UNIVAP), Research and Development Institute (IP&D). São José dos Campos, SP, Brazil; Study Group of Laser and Health Institute, São Paulo, SP, Brazil
| | - Milena Miranda Goulart Guirado
- Study Group of Laser and Health Institute, São Paulo, SP, Brazil; Doutor José de Carvalho Florence Hospital, São José dos Campos, SP, Brazil
| | | | | | | | - Inessa Solek Teixeira
- Study Group of Laser and Health Institute, São Paulo, SP, Brazil; Imperial Charity Hospital, Florianópolis, SC, Brazil
| | - Patrícia Costa Oliveira
- Study Group of Laser and Health Institute, São Paulo, SP, Brazil; Instituto Federal do Paraná, Campus Londrina, PR, Brazil
| | - Ricardo Yudi Tateno
- Graduate Program in Implantology, University of Santo Amaro, School of Dentistry. São Paulo, SP, Brazil
| | - Luiz Felipe Palma
- Graduate Dentistry Program, Ibirapuera University. São Paulo, SP, Brazil
| | - Luana Campos
- Study Group of Laser and Health Institute, São Paulo, SP, Brazil; Graduate Program in Implantology, University of Santo Amaro, School of Dentistry. São Paulo, SP, Brazil.
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Farhadian N, Miresmaeili A, Borjali M, Salehisaheb H, Farhadian M, Rezaei-Soufi L, Alijani S, Soheilifar S, Farhadifard H. The effect of intra-oral LED device and low-level laser therapy on orthodontic tooth movement in young adults: A randomized controlled trial. Int Orthod 2021; 19:612-621. [PMID: 34607784 DOI: 10.1016/j.ortho.2021.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 11/17/2022]
Abstract
INTRODUCTION This randomized controlled clinical trial aimed to assess the effect of LED5 and LLLT6 in a three-arm parallel setting. METHODS Sixty patients who needed the maxillary first premolar extraction were allocated to three groups using the stratified block randomization method. In the LED group, a custom-made device with a wavelength of 640nm and a power density of 40 mW/cm2 was used 5min/day. In the laser group, Ga Al As7 laser with a wavelength of 810nm and a power of 100 mW was used on days 0, 3, 30, and 60 each time for 18seconds. Patients in the control group received placebo treatment as the laser group protocol, using a coated light cure device. Models were made at baseline and monthly until the end of the retraction. The rate of canine retraction was the primary outcome, while canine rotation and pain were secondary outcomes. The final data were anonymous for the outcome assessor and statistical consultant. Data were analyzed per protocol using a linear mixed model. RESULTS The rate of canine retraction significantly increased by 60.8% in the laser group, while it increased not significantly by 26% in the LED group compared with the control group. There was no significant difference among the groups in terms of tooth rotation and pain. CONCLUSIONS LLLT can accelerate orthodontic tooth movement (OTM). LED with the present setting couldn't increase the rate of OTM. LLLT and LED did not affect canine rotation or pain. TRIAL REGISTRATION IRCT20120220009086N4. On 1 June 2019 was retrospectively registered.
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Affiliation(s)
- Nasrin Farhadian
- Hamadan University of Medical Sciences, School of Dentistry, Department of Orthodontics, Hamadan, Iran
| | - Amirfarhang Miresmaeili
- Hamadan University of Medical Sciences, School of Dentistry, Department of Orthodontics, Hamadan, Iran
| | - Mozhde Borjali
- Hamadan University of Medical Sciences, School of Dentistry, Department of Orthodontics, Hamadan, Iran
| | - Hana Salehisaheb
- Hamadan University of Medical Sciences, School of Dentistry, Department of Orthodontics, Hamadan, Iran.
| | - Maryam Farhadian
- Hamadan University of Medical Sciences, School of Public Health and Research Centre for Health Sciences, Department of Biostatistics, Hamadan, Iran
| | - Loghman Rezaei-Soufi
- Hamadan University of Medical Sciences, Dental Research Centre, Department of Restorative Dentistry, Hamadan, Iran
| | - Sara Alijani
- Hamadan University of Medical Sciences, School of Dentistry, Department of Orthodontics, Hamadan, Iran
| | - Sepideh Soheilifar
- Hamadan University of Medical Sciences, School of Dentistry, Department of Orthodontics, Hamadan, Iran
| | - Homa Farhadifard
- Hamadan University of Medical Sciences, School of Dentistry, Department of Orthodontics, Hamadan, Iran
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Dos Santos KW, Hugo FN, da Cunha Rodrigues E, Stein AT, Hilgert JB. Effect of oral exercises and photobiomodulation therapy in the rehabilitation of patients with mandible fractures: randomized double-blind clinical trial. Lasers Med Sci 2021; 37:1727-1735. [PMID: 34557956 DOI: 10.1007/s10103-021-03423-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/18/2021] [Indexed: 12/01/2022]
Abstract
Mandible fractures compromise stomatognathic functions, requiring rehabilitation. Evaluate the effectiveness of photobiomodulation (PBM) associated with oral exercises for rehabilitation of patients with mandible fractures. In this randomized clinical trial, we compared PBM with PBM sham in 14 adults with mandibular fractures who underwent surgical intervention. The sessions were performed 24 h and 48 h after surgical procedure, and weekly for 4 weeks after hospital discharge. Both groups performed oral exercises after each PBM session. Restriction of food consistencies, mandibular mobility, pain, and facial sensitivity measured before and after the surgical procedure were the outcomes evaluated, one and 3 months after surgery. Maximum interincisal distances (MID), exercise pain, and restriction of food consistencies were also evaluated during each week of intervention. Both groups showed normal MID (> 35 mm) and food consistencies consumed 1 month after the surgical procedure, with no significant differences between them. Individuals in the PBM group had less pain response to exercise during all the weeks of intervention than the sham group (p < 0.05). The patients presented a reduction in the painful response in MID and mandibular laterality movements 1 month after surgery compared to the preoperative period. In contrast, there was an improvement in laterality in the sham group only 3 months postoperatively and persistent pain in MID. There was no significant difference in facial sensitivity within and between groups during follow-up. The performance of oral exercises associated with PBM effectively facilitated the early rehabilitation of oral functions, with significant gains in pain management.
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Affiliation(s)
- Karoline Weber Dos Santos
- Cristo Redentor Hospital/Conceição Hospital Group (GHC) - 20, Domingos Rubbo Street, Porto Alegre, Rio Grande Do Sul, 91040-000, Brazil.
| | - Fernando Neves Hugo
- Department of Preventive and Social Dentistry, Universidade Federal Do Rio Grande Do Sul (UFRGS), Rua Ramiro Barcelos 2492, Porto Alegre, RS, 90035-0003, Brazil
| | - Esther da Cunha Rodrigues
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) - 245, Sarmento Leite Street, Porto Alegre, Rio Grande Do Sul, 90050-170, Brazil
| | - Airton Tetelbom Stein
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) - 245, Sarmento Leite Street, Porto Alegre, Rio Grande Do Sul, 90050-170, Brazil
| | - Juliana Balbinot Hilgert
- Department of Preventive and Social Dentistry, Universidade Federal Do Rio Grande Do Sul (UFRGS), Rua Ramiro Barcelos 2492, Porto Alegre, RS, 90035-0003, Brazil
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Baik JS, Lee TY, Kim NG, Pak K, Ko SH, Min JH, Shin YI. Effects of Photobiomodulation on Changes in Cognitive Function and Regional Cerebral Blood Flow in Patients with Mild Cognitive Impairment: A Pilot Uncontrolled Trial. J Alzheimers Dis 2021; 83:1513-1519. [PMID: 34420956 DOI: 10.3233/jad-210386] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Photobiomodulation (PBM) affects local blood flow regulation through nitric oxide generation, and various studies have reported on its effect on improving cognitive function in neurodegenerative diseases. However, the effect of PBM in the areas of the vertebral arteries (VA) and internal carotid arteries (ICA), which are the major blood-supplying arteries to the brain, has not been previously investigated. OBJECTIVE We aimed to determine whether irradiating PBM in the areas of the VA and ICA, which are the major blood-supplying arteries to the brain, improved regional cerebral blood flow (rCBF) and cognitive function. METHODS Fourteen patients with mild cognitive impairments were treated with PBM. Cognitive assessment and single-photon emission computed tomography were implemented at the baseline and at the end of PBM. RESULTS Regarding rCBF, statistically significant trends were found in the medial prefrontal cortex, lateral prefrontal cortex, anterior cingulate cortex, and occipital lateral cortex. Based on the cognitive assessments, statistically significant trends were found in overall cognitive function, memory, and frontal/executive function. CONCLUSION We confirmed the possibility that PBM treatment in the VA and ICA areas could positively affect cognitive function by increasing rCBF. A study with a larger sample size is needed to validate the potential of PBM.
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Affiliation(s)
- Ji Soo Baik
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Tae Young Lee
- Department of Psychiatry, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Nam Gyun Kim
- Medical Research Center of Color Seven. Seoul, Republic of Korea
| | - Kyoungjune Pak
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Sung-Hwa Ko
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea.,Department of Rehabilitation Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Ji Hong Min
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea.,Department of Rehabilitation Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Yong-Il Shin
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea.,Department of Rehabilitation Medicine & Institute of Medical Science, Pusan National University School of Medicine, Busan, Republic of Korea
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