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Song J, Hao PJ, Xu DP, Zhou WJ, Shang J. Effects of Photobiomodulation Therapy on Hard Tissue Healing in Rat Tooth Extraction Sockets. Photobiomodul Photomed Laser Surg 2023; 41:632-637. [PMID: 37910775 DOI: 10.1089/photob.2023.0082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023] Open
Abstract
Objective: To investigate the effects of photobiomodulation therapy (PBMT) on hard tissue healing in rat maxillary first molar extraction sockets. Methods: A total of 20 male Wistar rats were used in the study. The right extraction sockets were irradiated with a Ga-Al-As laser (500 mW, 980 nm) for 51.7 J/cm2 every 24 h for 7 days, while the left sockets served as controls. Rats were sacrificed on days 3, 7, 14, and 28 after tooth extraction, and microcomputed tomography (CT) analysis, histopathological evaluation, and enzyme-linked immunosorbent assay (ELISA) were conducted at different time points. Results: Micro-CT analysis showed that the percentage of bone volume/tissue volume (TV) and bone mineral density were significantly higher in the experimental group compared to the control group on day 28 (p < 0.05). Histopathological evaluation revealed that PBMT promoted new bone formation and accelerated bone remodeling. ELISA demonstrated a significant increase in alkaline phosphatase expression in the laser sides on days 7 and 14 (p < 0.05). Conclusions: One application postextraction followed by seven consecutive daily applications of PBMT can effectively promote hard tissue healing in rat maxillary first molar extraction sockets.
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Affiliation(s)
- Jian Song
- Department of Periodontics, Yantai Stomatological Hospital, Yantai, P.R. China
| | - Peng-Jie Hao
- Department of Prosthetics, Yantai Stomatological Hospital, Yantai, P.R. China
| | - Da-Peng Xu
- Department of Oral and Maxillofacial Surgery, Yantai Stomatological Hospital, Yantai, P.R. China
| | - Wen-Juan Zhou
- Department of Oral Implantology, Yantai Stomatological Hospital, Yantai, P.R. China
| | - Jiang Shang
- Department of Oral and Maxillofacial Surgery, Yantai Stomatological Hospital, Yantai, P.R. China
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Pereira PC, de Lima CJ, Fernandes AB, Zângaro RA, Villaverde AB. Cardiopulmonary and hematological effects of infrared LED photobiomodulation in the treatment of SARS-COV2. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 238:112619. [PMID: 36495670 PMCID: PMC9721157 DOI: 10.1016/j.jphotobiol.2022.112619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 11/28/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND COVID-19 disease is caused by SARS-CoV-2 which can trigger acute respiratory syndrome, which presents with dense alveolar and interstitial infiltrates and pulmonary edema, causing severe hypoxemia and significant alteration to pulmonary mechanics with reduced pulmonary compliance. The photobiomodulation technique alters cellular and molecular metabolism, showing promising results regarding the reduction of acute pulmonary inflammation. OBJECTIVE To compare the photomodulation technique using near-infrared LED to conventional respiratory physiotherapy treatment in patients with COVID-19 in reversing acute conditions, reducing hospitalization time, and decreasing the need for oxygen therapy. METHODOLOGY The cohort was comprised of 30 patients undergoing COVID-19 treatment who were divided and allocated into two equal groups randomly: the LED group (LED), treated with infrared LED at 940 nm and conventional therapy, and the control group (CON), who received conventional treatment (antibiotic therapy for preventing superimposed bacterial infections, and physiotherapy) with LED irradiation off. Phototherapy used a vest with an array of 300 LEDs (940 nm) mounted on a 36 cm × 58 cm area and positioned in the patient's anterior thoracic and abdominal regions. The total power was 6 W, with 15 min irradiation time. Cardiopulmonary functions and blood count were monitored before and after treatment. The patients were treated daily for 7 days. Statistical analysis was conducted using a two-tailed unpaired Student's t-test at a significance level of α = 0.05. RESULTS Post-treatment, the LED group showed a reduction in hospital discharge time and a statistically significant improvement for the following cardiopulmonary functions: Partial Oxygen Saturation, Tidal Volume, Maximum Inspiratory, and Expiratory Pressures, Respiratory Frequency, Heart Rate, and Systolic Blood Pressure (p < 0.05). Regarding blood count, it was observed that post-treatment, the LED group presented with significant differences in the count of leukocytes, neutrophils, and lymphocytes. CONCLUSION Photobiomodulation therapy can be used as a complement to conventional treatment of COVID-19, promoting the improvement of cardiopulmonary functions, and minimization of respiratory symptoms.
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Affiliation(s)
- Pâmela Camila Pereira
- Anhembi Morumbi University (UAM), Institute of Biomedical Engineering, Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016 São José dos Campos, SP, Brazil,University Center of Itajubá – (FEPI), Rua Dr. Antônio Braga Filho 687, Bairro Varginha, CEP: 37501-002 Itajubá, MG, Brazil
| | - Carlos José de Lima
- Anhembi Morumbi University (UAM), Institute of Biomedical Engineering, Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016 São José dos Campos, SP, Brazil,Center of Innovation, Technology and Education – (CITE), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016 São José dos Campos, SP, Brazil
| | - Adriana Barrinha Fernandes
- Anhembi Morumbi University (UAM), Institute of Biomedical Engineering, Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016 São José dos Campos, SP, Brazil,Center of Innovation, Technology and Education – (CITE), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016 São José dos Campos, SP, Brazil
| | - Renato Amaro Zângaro
- Anhembi Morumbi University (UAM), Institute of Biomedical Engineering, Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016 São José dos Campos, SP, Brazil,Center of Innovation, Technology and Education – (CITE), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016 São José dos Campos, SP, Brazil
| | - Antonio Balbin Villaverde
- Anhembi Morumbi University (UAM), Institute of Biomedical Engineering, Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016 São José dos Campos, SP, Brazil,Center of Innovation, Technology and Education – (CITE), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016 São José dos Campos, SP, Brazil,Corresponding author at: Center of Innovation, Technology and Education – CITE, Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016 São José dos Campos, SP, Brazil
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Martins JPS, de Lima CJ, Fernandes AB, Alves LP, Neto OP, Villaverde AB. Analysis of pain relief and functional recovery in patients with rotator cuff tendinopathy through therapeutic ultrasound and photobiomodulation therapy: a comparative study. Lasers Med Sci 2022; 37:3155-3167. [PMID: 35648258 DOI: 10.1007/s10103-022-03584-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 05/24/2022] [Indexed: 10/18/2022]
Abstract
This study aimed to compare shoulder tendinopathy treatment with therapeutic ultrasound combined with LED photobiomodulation therapy using LED-infrared (850 nm) or LED-red (640 nm). The study assessed 75 patients, aged 45 to 70 years, distributed into five experimental groups (15 patients each): therapeutic ultrasound (US), infrared light irradiation (IR), visible red light irradiation (VR), infrared light and ultrasound combined (IR-US), and red light in conjunction with ultrasound (VR-US). The ultrasound parameters are 1 MHz, 0.5 W/cm2 (SATA), and 100 Hz repetition rate, applied for 4 min each session. LED irradiation protocols were as follows: 3 points, 7.5 J per point, IR-LED 750 mW, 10 s, VR-LED 250 mW, 30 s. LED irradiation is followed by ultrasound in the combined therapies. The efficiency of the five therapies was evaluated assessing 12 parameters: quality of life (Health Assessment Questionnaire, HAQ), pain intensity (Visual Analog Scale, VAS), articular amplitude of shoulder movement (flexion, extension, abduction, adduction, medial rotation, lateral rotation), muscle strength (abduction, lateral rotation), and electromyography (lateral rotation, abduction). Treatments comprised 12 sessions for 4 weeks. Intra-group analysis showed that the five therapies significantly improved the recovery of all parameters after treatment. Regarding the comparison of irradiated therapies and ultrasound, statistical analysis showed that IR-US was a better treatment than US for all 12 parameters. IR treatment exceeded US on 9 items, whereas that VR and VR-US therapies exceeded US in 7 and 10 parameters, respectively (p < 0.05). Because of that, IR-US shows to be the best treatment for rotator cuff tendinopathy. In conclusion, improvements in quality of life, pain intensity relief, shoulder amplitude motion, and muscle strength force obtained with ultrasound therapy are enhanced by adding infrared LED irradiation to ultrasound for patients suffering from rotator cuff tendinopathy. This study was registered with the Brazilian Registry of Clinical Trials (ReBEC) under Universal Trial Number (UTN) U1111-1219-3594 (2018/22/08).
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Affiliation(s)
- João Pedro Scaldaferri Martins
- Postgraduate Program in Biomedical Engineering, Anhembi Morumbi University (UAM), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016, São José dos Campos, SP, Brazil
| | - Carlos José de Lima
- Institute of Biomedical Engineering, Anhembi Morumbi University (UAM), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016, São José dos Campos, SP, Brazil.,Center of Innovation, Technology and Education (CITE), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016, São José dos Campos, SP, Brazil
| | - Adriana Barrinha Fernandes
- Institute of Biomedical Engineering, Anhembi Morumbi University (UAM), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016, São José dos Campos, SP, Brazil.,Center of Innovation, Technology and Education (CITE), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016, São José dos Campos, SP, Brazil
| | - Leandro Procópio Alves
- Institute of Biomedical Engineering, Anhembi Morumbi University (UAM), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016, São José dos Campos, SP, Brazil.,Center of Innovation, Technology and Education (CITE), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016, São José dos Campos, SP, Brazil
| | - Osmar Pinto Neto
- Institute of Biomedical Engineering, Anhembi Morumbi University (UAM), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016, São José dos Campos, SP, Brazil.,Center of Innovation, Technology and Education (CITE), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016, São José dos Campos, SP, Brazil.,Arena235 Research Lab, Rua Carlos Maria Auricchio 55, CEP 12.246-876, São José dos Campos, SP, Brazil
| | - Antonio Balbin Villaverde
- Institute of Biomedical Engineering, Anhembi Morumbi University (UAM), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016, São José dos Campos, SP, Brazil. .,Center of Innovation, Technology and Education (CITE), Estrada Dr. Altino Bondensan 500, Distrito de Eugênio de Melo, CEP: 12.247-016, São José dos Campos, SP, Brazil.
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