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Fekrazad S, Farzad-Mohajeri S, Mashhadiabbas F, Daghighi H, Arany PR, Fekrazad R. Bone Regeneration of Rat Critical-Sized Calvarial Defects by the Combination of Photobiomodulation and Adipose-Derived Mesenchymal Stem Cells. J Lasers Med Sci 2024; 15:e31. [PMID: 39193112 PMCID: PMC11348449 DOI: 10.34172/jlms.2024.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 04/01/2024] [Indexed: 08/29/2024]
Abstract
Introduction: This study explored the synergistic effects of low-level laser therapy (LLLT) and adipose-derived stem cells (ADSCs) on cranial bone regeneration in rats, addressing the limitations of autogenous grafts and advancing bone tissue engineering with innovative photobiomodulation (PBM) applications. Methods: Sixty Wistar rats were allocated to 5 separate groups randomly; (1) natural bovine bone mineral (NBBM); (2) NBBM+LLLT; (3) NBBM+allogenic ADSCs; (4) NBBM+allogenic ADSCs+LLLT; (5) Only defects. 8-mm calvarial defects were made in each rat in the surgical procedure. A diode laser was applied with the following parameters (continuous mode, power of 100mW, wavelength of 808nm, and 4 J/cm2 energy density) immediately after the procedure and every other day. Bone samples were obtained and assessed histomorphometrically and histologically after staining with hematoxylin and eosin (H&E). Results: Different volumes of bony material were observed in two weeks; 2.94%±1.00 in group 1, 5.1%±1.92 in group 2, 7.11%±2.82 in group 3, 7.34%±2.31 in group 4, and 2.01%±0.83 in group 5 (P<0.05). On the other hand, foreign body residuals were up by 23% in the groups with scaffolding by the end of 2 weeks. Four weeks of observation led to 6.74 %±1.95, 13.24%±1.98, 15.76%±1.19, 15.92%±3.4, and 3.11%±1.00 bone formation in groups 1 to 5, respectively (P<0.05). Generally, the difference between groups 2-4 was not statistically significant based on different types of bone and the extent of inflammation. Conclusion: Bearing in mind the limitations of our research, it was demonstrated that ADSCs in combination with PBM have promising effects on bone tissue regeneration in sizeable bony defects. Furthermore, this study also showed that PBM usage improved the newly regenerated bone quality.
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Affiliation(s)
- Sepehr Fekrazad
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Farzad-Mohajeri
- Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Fatemeh Mashhadiabbas
- Oral and Maxillofacial Pathology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hooman Daghighi
- Students’ Research Committee, Iran University of Medical Sciences, Tehran, Iran
| | - Praveen R. Arany
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, The State University of New York, USA
| | - Reza Fekrazad
- Radiation Sciences Research Center, AJA University of Medical Sciences, Tehran, Iran
- International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research, Network (USERN), Tehran, Iran
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Gonçalves FC, Mascaro BA, Oliveira GJPLD, Spolidório LC, Marcantonio RAC. Effects of red and infrared laser on post extraction socket repair in rats subjected to alendronate therapy. Braz Oral Res 2023; 37:e048. [PMID: 37255068 DOI: 10.1590/1807-3107bor-2023.vol37.0048] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 12/14/2021] [Indexed: 06/01/2023] Open
Abstract
This study evaluated the effect of photobiomodulation therapy (PBMT) with a red or infrared laser on the repair of post extraction sockets in rats administered alendronate (ALN). Forty male rats were randomly allocated into four groups: Control Group (CTR): subcutaneous administration of saline solution throughout the experimental period; Alendronate Group (ALN): subcutaneous administration of alendronate during the entire experimental period; Alendronate/Red Laser Group (ALN/RL): administration of ALN and irradiation with a GaAlAs laser (λ 660 nm); and Alendronate/Infrared Laser Group (ALN/IRL): administration of ALN and irradiation with a GaAlAs laser (λ 830 nm). The first lower molars were extracted 60 days after the beginning of the administration of the drugs. The PBMT was applied after tooth extraction (7 sessions with intervals of 48 hours between sessions). Thirty days after tooth extraction, the animals were euthanized. Micro-CT and histometric analysis were performed to assess the bone healing and soft tissue repair of the tooth socket. The ALN group presented with more bone than the CTR; however, most of this bone was necrotic. ALN does not affect the bone microarchitecture. On the other hand, PBMT with IRL enhances the bone density due to the increase in the number and reduction in the spacing of the trabeculae. The amount of vital bone and connective tissue matrix was higher in the ALN/RL and ALN/IRL groups than in the ALN and CTR groups. PBMT enhanced the healing of the post extraction sockets in rats subjected to ALN administration. Furthermore, IRL improved the new bone microarchitecture.
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Affiliation(s)
- Fernanda Castanheira Gonçalves
- Universidade Estadual Paulista - Unesp, School of Dentistry, Department of Diagnosis and Surgery, Araraquara, SP, Brazil
| | - Bruno Arruda Mascaro
- Universidade Estadual Paulista - Unesp, School of Dentistry, Department of Diagnosis and Surgery, Araraquara, SP, Brazil
| | | | - Luis Carlos Spolidório
- Universidade Estadual Paulista - Unesp, School of Dentistry, Department of Physiology and Pathology, Araraquara, SP, Brazil
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Aifantis ID, Ampadiotaki MM, Pallis D, Tsivelekas KK, Papadakis SA, Chronopoulos E. Biophysical Enhancement in Fracture Healing: A Review of the Literature. Cureus 2023; 15:e37704. [PMID: 37206524 PMCID: PMC10191239 DOI: 10.7759/cureus.37704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2023] [Indexed: 05/21/2023] Open
Abstract
Bone healing constitutes a complex process involving cellular and pathophysiological mechanisms. Despite progress in osteosynthesis techniques, fracture union continues to be challenging. In some cases, it is not ultimately achieved or is delayed relative to the expected time resulting in economic and social outcomes for the patient and the health system. In addition to surgical treatment, biophysical methods have been developed to assist in fracture healing used in combination or individually. Biophysical stimulation is a non-invasive therapy used in orthopedic practice to increase and enhance tissue's reparative and anabolic activities. This study reviewed the existing literature, including electromagnetic fields, ultrasound, laser, extracorporeal shockwave therapy, and electrical stimulation, and revealed the efficacy of biophysical stimulation for bone healing. This study aims to define if these methods are helpful, especially in cases of non-union. Biophysical stimulation requires care and precision in use to ensure the success expected of it by physicians and patients.
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Affiliation(s)
| | | | - Dimitrios Pallis
- 2nd Orthopedic Department, KAT Attica General Hospital, Athens, GRC
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Tissue Bioengineering with Fibrin Scaffolds and Deproteinized Bone Matrix Associated or Not with the Transoperative Laser Photobiomodulation Protocol. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010407. [PMID: 36615601 PMCID: PMC9824823 DOI: 10.3390/molecules28010407] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/17/2022] [Accepted: 11/28/2022] [Indexed: 01/06/2023]
Abstract
Extending the range of use of the heterologous fibrin biopolymer, this pre-clinical study showed a new proportionality of its components directed to the formation of scaffold with a lower density of the resulting mesh to facilitate the infiltration of bone cells, and combined with therapy by laser photobiomodulation, in order to accelerate the repair process and decrease the morphofunctional recovery time. Thus, a transoperative protocol of laser photobiomodulation (L) was evaluated in critical bone defects filled with deproteinized bovine bone particles (P) associated with heterologous fibrin biopolymer (HF). The groups were: BCL (blood clot + laser); HF; HFL; PHF (P+HF); PHFL (P+HF+L). Microtomographically, bone volume (BV) at 14 days, was higher in the PHF and PHFL groups (10.45 ± 3.31 mm3 and 9.94 ± 1.51 mm3), significantly increasing in the BCL, HFL and PHFL groups. Histologically, in all experimental groups, the defects were not reestablished either in the external cortical bone or in the epidural, occurring only in partial bone repair. At 42 days, the bone area (BA) increased in all groups, being significantly higher in the laser-treated groups. The quantification of bone collagen fibers showed that the percentage of collagen fibers in the bone tissue was similar between the groups for each experimental period, but significantly higher at 42 days (35.71 ± 6.89%) compared to 14 days (18.94 ± 6.86%). It can be concluded that the results of the present study denote potential effects of laser radiation capable of inducing functional bone regeneration, through the synergistic combination of biomaterials and the new ratio of heterologous fibrin biopolymer components (1:1:1) was able to make the resulting fibrin mesh less dense and susceptible to cellular permeability. Thus, the best fibrinogen concentration should be evaluated to find the ideal heterologous fibrin scaffold.
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Fekrazad S, Sohrabi M, Fekrazad R. Angiogenetic and anti-inflammatory effects of photobiomodulation on bone regeneration in rat: A histopathological, immunohistochemical, and molecular analysis. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 238:112599. [PMID: 36493717 DOI: 10.1016/j.jphotobiol.2022.112599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 04/27/2022] [Accepted: 11/10/2022] [Indexed: 11/17/2022]
Abstract
Post-surgical bone defects require new alternative approaches for a better healing process. For this matter, photobiomodulation therapy (PBMT) has been used in order to improve the process of healing, pain, and inflammation reduction and tissue rejuvenation. This study is set to evaluate the effect of PBMT on angiogenic and inflammatory factors for bone regeneration in rat post-surgical cranial defects. Thirty male Wistar rats were distributed accidentally into two groups (Subdivided into 3 groups according to their follow-up durations). During operation, an 8-mm critical-sized calvarial defect was made in each rat. A continuous diode laser was used (power density 100 mW/cm2, wavelength 810 nm, the energy density of 4 J/cm2). Bone samples were assessed histomorphometrically and histologically after hematoxylin and eosin (H&E) staining. ALP, PTGIR, OCN, and IL-1 levels were measured by RT-PCR. VEGF expression was studied by immunohistochemistry analysis. The level of IL-1 expression decreased significantly in the PBMT group compared to the control after 7 days (p < 0.05), while, the PTGIR level was improved significantly compared to the control group after 7 days. Furthermore, levels of OCN and ALP improved after PBM use; however, the alterations were not statistically meaningful (p > 0.05). Evaluation with IHC displayed a significant rise in VEGF expression after 3 days in the PBMT group compared to the control (p > 0.05). In this study's conditions, the results showed a meaningful alteration in osteogenic, inflammatory, and angiogenic mediators in post-surgical calvarial defect following PBMT. It appears that PBM can accelerate angiogenesis in the bone healing procedure which can be helpful in bone tissue engineering.
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Affiliation(s)
- Sepehr Fekrazad
- Department of General Surgery, Subdivision of Surgical Oncology, Cancer Institute of Iran, Tehran University of Medical Sciences, Tehran, Iran
| | - Mona Sohrabi
- Department of Pediatrics, Dental School, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Reza Fekrazad
- Radiation Sciences Research Center, AJA University of Medical Sciences - International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
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Yaralı Çevik ZB, Karaman O, Topaloğlu N. Photobiomodulation therapy at red and near-infrared wavelengths for osteogenic differentiation in the scaffold-free microtissues. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 238:112615. [PMID: 36493718 DOI: 10.1016/j.jphotobiol.2022.112615] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 11/09/2022] [Accepted: 11/29/2022] [Indexed: 12/04/2022]
Abstract
One of the novel strategies for bone tissue regeneration is photobiomodulation (PBM) which depends on the red and near-infrared light absorption by mitochondria and may trigger bone tissue regeneration via the production of intracellular ROS and ATP, NO release, etc. It is also important to identify the changes in those signal molecule levels in an in vivo mimicking platform such as 3-Dimensional (3D) Scaffold Free Microtissues (SFMs) that may serve more natural osteogenic differentiation responses to PBM. Herein, we aimed to increase the osteogenic differentiation capability of the co-culture of Human Bone Marrow Stem Cells (hBMSC) and Human Umbilical Vein Endothelial Cells (HUVECs) on 3D SFMs by triple light treatment at 655 and 808-nm of wavelengths with the energy densities of 1, 3, and 5 J/cm2. We performed the analysis of cell viability, diameter measurements of SFMs, intracellular ROS production, NO release, ATP activity, temperature measurements, DNA content, ALPase activity, calcium content, and relative gene expressions of ALP, Collagen, and Osteopontin by qRT-PCR. It was found that both wavelengths were effective in terms of the viability of SFMs. 1 and 5 J/cm2 energy densities of both wavelengths increased the SFM diameter with significant changes in intracellular ROS, ATP, and NO levels compared to the control group. We concluded that PBM therapy was successful to induce osteogenesis. 1 J/cm2 at 655 nm of wavelength and 5 J/cm2 at 808 nm of wavelength were the most effective energy densities for osteogenic differentiation on SFMs with triple light treatment.
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Affiliation(s)
- Ziyşan Buse Yaralı Çevik
- Biomedical Test Calibration Application and Research Center, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey; Department of Biomedical Technologies, Graduate School of Natural and Applied Sciences, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey.
| | - Ozan Karaman
- Biomedical Test Calibration Application and Research Center, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey; Department of Biomedical Technologies, Graduate School of Natural and Applied Sciences, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey; Department of Biomedical Engineering, Faculty of Engineering and Architecture, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey.
| | - Nermin Topaloğlu
- Department of Biomedical Technologies, Graduate School of Natural and Applied Sciences, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey; Department of Biomedical Engineering, Faculty of Engineering and Architecture, Izmir Katip Celebi University, Çiğli, Izmir 35620, Turkey.
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Pomini KT, Buchaim DV, Bighetti ACC, Andreo JC, Rosso MPDO, Escudero JSB, Della Coletta BB, Alcalde MP, Duarte MAH, Pitol DL, Issa JPM, Ervolino E, Moscatel MBM, Bellini MZ, de Souza AT, Soares WC, Buchaim RL. Use of Photobiomodulation Combined with Fibrin Sealant and Bone Substitute Improving the Bone Repair of Critical Defects. Polymers (Basel) 2022; 14:polym14194170. [PMID: 36236116 PMCID: PMC9572221 DOI: 10.3390/polym14194170] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 11/16/2022] Open
Abstract
In this preclinical protocol, an adjunct method is used in an attempt to overcome the limitations of conventional therapeutic approaches applied to bone repair of large bone defects filled with scaffolds. Thus, we evaluate the effects of photobiomodulation therapy (PBMT) on the bone repair process on defects filled with demineralized bovine bone (B) and fibrin sealant (T). The groups were BC (blood clot), BT (B + T), BCP (BC + PBMT), and BTP (B + T + PBMT). Microtomographically, BC and BCP presented a hypodense cavity with hyperdense regions adjacent to the border of the wound, with a slight increase at 42 days. BT and BTP presented discrete hyperdensing areas at the border and around the B particles. Quantitatively, BCP and BTP (16.96 ± 4.38; 17.37 ± 4.38) showed higher mean bone density volume in relation to BC and BT (14.42 ± 3.66; 13.44 ± 3.88). Histologically, BC and BCP presented deposition of immature bone at the periphery and at 42 days new bone tissue became lamellar with organized total collagen fibers. BT and BTP showed inflammatory infiltrate along the particles, but at 42 days, it was resolved, mainly in BTP. In the birefringence analysis, BT and BTP, the percentage of red birefringence increased (9.14% to 20.98% and 7.21% to 27.57%, respectively), but green birefringence was similar in relation to 14 days (3.3% to 3.5% and 3.5% to 4.2%, respectively). The number of osteocytes in the neoformed bone matrix proportionally reduced in all evaluated groups. Immunostaining of bone morphogenetic protein (BMP—2/4), osteocalcin (OCN), and vascular endothelial growth factor (VEGF) were higher in BCP and BTP when compared to the BC and BT groups (p < 0.05). An increased number of TRAP positive cells (tartrate resistant acid phosphatase) was observed in BT and BTP. We conclude that PBMT positively influenced the repair of bone defects filled with B and T.
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Affiliation(s)
- Karina Torres Pomini
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
| | - Daniela Vieira Buchaim
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marilia 17525-902, Brazil
- Teaching and Research Coordination of the Medical School, University Center of Adamantina (UNIFAI), Adamantina 17800-000, Brazil
| | - Ana Carolina Cestari Bighetti
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
| | - Jesus Carlos Andreo
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
| | | | - José Stalin Bayas Escudero
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
| | - Bruna Botteon Della Coletta
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
| | - Murilo Priori Alcalde
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru 17012-901, Brazil
| | - Marco Antonio Hungaro Duarte
- Department of Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo (FOB/USP), Bauru 17012-901, Brazil
| | - Dimitrius Leonardo Pitol
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo (FORP/USP), Ribeirão Preto 14040-904, Brazil
| | - João Paulo Mardegan Issa
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo (FORP/USP), Ribeirão Preto 14040-904, Brazil
| | - Edilson Ervolino
- Department of Basic Sciences, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16066-840, Brazil
| | | | - Márcia Zilioli Bellini
- Pro-Rectory of Research and Graduate Studies, University Center of Adamantina (UNIFAI), Adamantina 17800-000, Brazil
| | | | - Wendel Cleber Soares
- Vice-Rector/President, University Center of Adamantina (UNIFAI), Adamantina 17800-000, Brazil
| | - Rogerio Leone Buchaim
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
- Graduate Program in Anatomy of Domestic and Wild Animals, Faculty of Veterinary Medicine and Animal Science, University of São Paulo (FMVZ/USP), São Paulo 05508-270, Brazil
- Correspondence: ; Tel.: +55-14-3235-8220
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Kuzu TE, Öztürk K, Gürgan CA, Üşümez A, Yay A, Göktepe Ö. Effect of Photobiomodulation Therapy on Peri-Implant Bone Healing in Extra-Short Implants in a Rabbit Model: A Pilot Study. Photobiomodul Photomed Laser Surg 2022; 40:402-409. [PMID: 35749706 DOI: 10.1089/photob.2021.0098] [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: 11/13/2022] Open
Abstract
Objective: To evaluate the effects of photobiomodulation therapy (PBMT) at distinct energy levels on peri-implant bone healing in extra-short implants in a experimental rabbit model. Background: The effect of PBMT on peri-implant bone healing in short implants remains unclear. This explored the effect of PBMT on extra-short implants in terms of bone-implant contact (BIC) length and rate, and implant stability quotient (ISQ). Methods: Fifteen white New Zealand rabbits were randomly divided into five groups. In all groups, extra-short implants (3.5 × 4 mm; Nucleoss T6, İzmir/Turkey) were placed in both tibias of the rabbits. PBMT was performed in four groups (group 1, 5 J/cm2; group 2, 10 J/cm2; group 3, 20 J/cm2; and group 4, 25 J/cm2); no PBMT was performed in the control group. On the 30th day, the rabbits were sacrificed and peri-implant tissue samples were obtained to determine the BIC length and BIC rate. Implant stability levels were measured by resonance frequency analysis using the Osstell penguin device and were determined as ISQ values on the 1st and 30th days of the study. Results: PBMT significantly increased the BIC length and BIC rate in groups 3 and 4 (p < 0.001). For the ISQ values, there were significant differences between the 1st and 30th day (p < 0.001). On the 30th day, the ISQ values were significantly higher in groups 3 and 4 compared with the remaining groups (p < 0.001). Conclusions: In this study, PBMT improved peri-implant bone healing through increase in BIC length, BIC rate, and ISQ parameter values in extra-short implants.
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Affiliation(s)
- Turan Emre Kuzu
- Department of Periodontology, Faculty of Dentistry, Nuh Naci Yazgan University, Kayseri, Turkey
| | - Kübra Öztürk
- Department of Oral and Maxillofacial Surgery, and Faculty of Dentistry, Nuh Naci Yazgan University, Kayseri, Turkey
| | - Cem A Gürgan
- Department of Periodontology, Faculty of Dentistry, Nuh Naci Yazgan University, Kayseri, Turkey
| | - Aslihan Üşümez
- Department of Prosthodontics, Dental Plus Dental Clinic, İstanbul, Turkey
| | - Arzu Yay
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Özge Göktepe
- Department of Histology and Embryology, Erciyes University, Kayseri, Turkey
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Texturized P(VDF-TrFE)/BT membrane enhances bone neoformation in calvaria defects regardless of the association with photobiomodulation therapy in ovariectomized rats. Clin Oral Investig 2021; 26:1053-1065. [PMID: 34370100 DOI: 10.1007/s00784-021-04089-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 07/17/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVES The purpose of this investigation was to evaluate in vivo the response of bone tissue to photobiomodulation when associated with texturized P(VDF-TrFE)/BT in calvaria defects of ovariectomized rats. MATERIALS AND METHODS Wistar Hannover rats were submitted to ovariectomy/control surgery. Calvaria bone defects of 5-mm diameter were performed after 90 days of ovariectomy. The animals were divided into OVX (without laser (L) and membrane), OVX + P(VDF-TrFE)/BT, OVX + P(VDF-TrFE)/BT + L, and OVX + PTFE + L. It was utilized a low-intensity gallium-aluminum-arsenide laser (GaAlAs) with 780-nm wavelength and 30-J/cm2 energy density in 12 sessions (120 s). Thirty days after the bone defect the animals were euthanized for histological, microtomographic, and molecular evaluation. Quantitative analysis was analyzed by statistical software for p < 0.05. RESULTS Histological parameters showed bone tissue formation at the borders of all group defects. The association of photobiomodulation and texturized P(VDF-TrFE)/BT was not synergistic and did not show significant changes in morphometric analysis and biomarkers gene expression. Nevertheless, texturized P(VDF-TrFE)/BT membrane enhanced bone repair regardless of the association with photobiomodulation therapy, with an increase of connectivity density when compared to the OVX + PTFE + L group. The association of photobiomodulation therapy and PTFE was synergistic, increasing the expression of Runx2, Alp, Bsp, Bglap, Sp7, and Rankl, even though not enough to reflect significance in the morphometric parameters. CONCLUSIONS The utilization of texturized P (VDF-TrFE)/BT, regardless of the association with photobiomodulation therapy, enhanced bone repair in an experimental model of osteoporosis.
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Magri AMP, Parisi JR, de Andrade ALM, Rennó ACM. Bone substitutes and photobiomodulation in bone regeneration: A systematic review in animal experimental studies. J Biomed Mater Res A 2021; 109:1765-1775. [PMID: 33733598 DOI: 10.1002/jbm.a.37170] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/02/2021] [Accepted: 03/08/2021] [Indexed: 11/08/2022]
Abstract
In general, bone fractures are able of healing by itself. However, in critical situations such as large bone defects, poor blood supply or even infections, the biological capacity of repair can be impaired, resulting in a delay of the consolidation process or even in non-union fractures. Thus, technologies able of improving the process of bone regeneration are of high demand. In this context, ceramic biomaterials-based bone substitutes and photobiomodulation (PBM) have been emerging as promising alternatives. Thus, the present study performed a systematic review targeting to analyze studies in the literature which investigated the effects of the association of ceramic based bone substitutes and PBM in the process of bone healing using animal models of bone defects. The search was conducted from March and April of 2019 in PubMed, Web of Science and Scopus databases. After the eligibility analyses, 16 studies were included in this review. The results showed that the most common material used was hydroxyapatite (HA) followed by Biosilicate associated with infrared PBM. Furthermore, 75% of the studies demonstrated positive effects to stimulate bone regeneration from association of ceramic biomaterials and PBM. All studies used low-level laser therapy (LLLT) device and the most studies used LLLT infrared. The evidence synthesis was moderate for all experimental studies for the variable histological analysis demonstrating the efficacy of techniques on the process of bone repair stimulation. In conclusion, this review demonstrates that the association of ceramic biomaterials and PBM presented positive effects for bone repair in experimental models of bone defects.
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Affiliation(s)
- Angela Maria Paiva Magri
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, São Paulo, Brazil.,University Center of the Guaxupé Education Foundation (UNIFEG), Guaxupé, Minas Gerais, Brazil
| | - Júlia Risso Parisi
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, São Paulo, Brazil.,Department of Physical Therapy, Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | | | - Ana Claudia Muniz Rennó
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, São Paulo, Brazil.,Department of Physical Therapy, Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
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Cruz MA, Fernandes KR, Parisi JR, Vale GCA, Junior SRA, Freitas FR, Sales AFS, Fortulan CA, Peitl O, Zanotto E, Granito RN, Ribeiro AM, Renno ACM. Marine collagen scaffolds and photobiomodulation on bone healing process in a model of calvaria defects. J Bone Miner Metab 2020; 38:639-647. [PMID: 32303916 DOI: 10.1007/s00774-020-01102-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 03/23/2020] [Indexed: 01/30/2023]
Abstract
INTRODUCTION Collagen from marine esponges has been used as a promising material for tissue engineering proposals. Similarly, photobiomodulation (PBM) is able of modulating inflammatory processes after an injury, accelerating soft and hard tissue healing and stimulating neoangiogenesis. However, the effects of the associated treatments on bone tissue healing have not been studied yet. In this context, the present study aimed to evaluate the biological temporal modifications (using two experimental periods) of marine sponge collagen or sponging (SPG) based scaffold and PBM on newly formed bone using a calvaria bone defect model. MATERIAL AND METHODS Wistar rats were distributed into two groups: SPG or SPG/PBM and euthanized into two different experimental periods (15 and 45 days post-surgery). A cranial critical bone defect was used to evaluate the effects of the treatments. Histology, histomorfometry and immunohistological analysis were performed. RESULTS Histological findings demonstrated that SPG/PBM-treated animals, 45 days post-surgery, demonstrated a higher amount of connective and newly formed bone tissue at the region of the defect compared to CG. Notwithstanding, no difference among groups were observed in the histomorphometry. Interestingly, for both anti-transforming growth factor-beta (TGF-β) and anti-vascular endothelial growth factor (VEGF) immunostaining, higher values for SPG/PBM, at 45 days post-surgery could be observed. CONCLUSION It can be concluded that the associated treatment can be considered as a promising therapeutical intervention.
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Affiliation(s)
- M A Cruz
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, Brazil.
| | - K R Fernandes
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, Brazil
| | - J R Parisi
- Department of Fisiotherapy, Federal University of São Carlos (UFSCar), São Carlos, Brazil
| | - G C A Vale
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, Brazil
| | - S R A Junior
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, Brazil
| | - F R Freitas
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, Brazil
| | - A F S Sales
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, Brazil
| | - C A Fortulan
- Department of Fisiotherapy, Federal University of São Carlos (UFSCar), São Carlos, Brazil
| | - O Peitl
- Department of Fisiotherapy, Federal University of São Carlos (UFSCar), São Carlos, Brazil
| | - E Zanotto
- Department of Fisiotherapy, Federal University of São Carlos (UFSCar), São Carlos, Brazil
| | - R N Granito
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, Brazil
| | - A M Ribeiro
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, Brazil
| | - A C M Renno
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Santos, Brazil
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12
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Effectiveness of Led Photobiomodulation Therapy on Treatment With Knee Osteoarthritis: A Rat Study. Am J Phys Med Rehabil 2020; 99:725-732. [PMID: 32167952 DOI: 10.1097/phm.0000000000001408] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The present study aimed to evaluate the effectiveness of photobiomodulation therapy by light-emitting diode on osteoarthritis treatment in the knees of rats. DESIGN Twenty male Wistar rats were randomly assigned into two experimental groups: OAC: animals subjected to induction of osteoarthritis, without therapeutic intervention and the group OAL: animals subjected to induction of osteoarthritis treated with light-emitting diode photobiomodulation therapy (850 nm, 200 mW, 6 J). RESULTS The results of gait analysis showed no statistical difference between the groups. The histological findings showed that the OAL group presented abnormal chondrocyte orientation, yet with less irregularities along fibrillation and the joint tissue. Thus, it presented a lower degenerative process when evaluated by the Osteoarthritis Research Society International. Likewise, in the immunohistochemical analysis, the OAL group showed higher collagen 2 and transforming growth factor β immunoexpression when compared with the OAC group. CONCLUSIONS Given the above, it is possible to suggest that the photobiomodulation therapy by light-emitting diode had positive effects on the expression of extracellular matrix proteins responsible for synthesis of articular tissue.
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13
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Cheng W, Yao M, Sun K, Li W. Progress in Photobiomodulation for Bone Fractures: A Narrative Review. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2020; 38:260-271. [PMID: 32427551 DOI: 10.1089/photob.2019.4732] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Objective: The aim of this article is to examine current concepts and the future direction of implementing photobiomodulation (PBM) for fracture treatment. Background data: The effectiveness of PBM for bone regeneration has been demonstrated throughout in vitro studies and animal models. Yet, insufficient clinical trials have been reported on treating fractures with PBM. Materials and methods: A narrative review was composed on the basis of a literary search. Inclusion criteria consisted of studies between 2000 and 2019 using animal or human fracture models. Exclusion criteria consisted of studies that did not pertain to complete fractures or used other forms of intervention. Results: Ten animal studies on rats and rabbits and four clinical trials were found on using PBM for complete fractures. Conclusions: Based on positive outcomes in animal trials, parameter optimization of PBM for human fractures still requires extensive research on factors such as dosage, wavelength, penetration depth, treatment frequency, and the use of pulsed waves.
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Affiliation(s)
- Weyland Cheng
- Department of Orthopaedics, Children's Hospital Affiliated of Zhengzhou University, Zhengzhou, China
| | - Manye Yao
- Department of Orthopaedics, Children's Hospital Affiliated of Zhengzhou University, Zhengzhou, China
| | - Keming Sun
- Department of Orthopaedics, Children's Hospital Affiliated of Zhengzhou University, Zhengzhou, China
| | - Weili Li
- Department of Orthopaedics, Children's Hospital Affiliated of Zhengzhou University, Zhengzhou, China
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14
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Castro TNS, Martignago CCS, Assis L, de Alexandria FED, Rocha JCT, Parizotto NA, Tim CR. Effects of photobiomodulation therapy in the integration of skin graft in rats. Lasers Med Sci 2019; 35:939-947. [PMID: 31833005 DOI: 10.1007/s10103-019-02909-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 10/18/2019] [Indexed: 11/29/2022]
Abstract
Skin graft is one of the most common techniques used in plastic surgery and repair. However, there are some complications that can lead to loss of the skin graft. Thus, several features have been studied with the aim of promoting the integration of skin grafts. Among these resources, the use of laser photobiomodulation (laser PBM) has been highlighted. The present study aimed to investigate the effects of laser PBM on the viability and integration of skin grafts in rats. Twenty male Wistar rats (± 250 g) were randomly assigned into two experimental groups with 10 animals each: control group, animals submitted to skin graft and simulation of laser PBM; laser PBM group, submitted to the skin graft and submitted to laser PBM at 660 nm, 40 mW, 60 s, 2.4 J. The animals were submitted to laser photobiomodulation immediately after the surgical procedure and each 24 h. Animal euthanasia occurred on the 7th day after surgery, 24 h after the last treatment session. The histopathological analysis revealed that the laser PBM showed better adhesion of the graft when compared to the control group. Likewise, the morphometric analysis of mast cells, blood vessels, and collagen showed a statistically significant increase in the animals irradiated with the laser PBM when compared to the control group. In addition, immunohistochemical analysis demonstrated that the laser PBM showed statistically higher immunoexpression of FGF when compared to the CG. However, IL-4 immunoexpression did not show statistical difference between the experimental groups. From the results obtained in the present study, it can be suggested that laser photobiomodulation was effective in promoting the integration and viability of total skin grafts in rats.
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Affiliation(s)
| | | | - Lívia Assis
- Instituto Científico e, Tecnológico da Universidade Brasil, Carolina Fonseca, São Paulo, 235, Brazil
| | | | | | - Nivaldo Antonio Parizotto
- Instituto Científico e, Tecnológico da Universidade Brasil, Carolina Fonseca, São Paulo, 235, Brazil
| | - Carla Roberta Tim
- Instituto Científico e, Tecnológico da Universidade Brasil, Carolina Fonseca, São Paulo, 235, Brazil.
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15
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Hosseinpour S, Tunér J, Fekrazad R. Photobiomodulation in Oral Surgery: A Review. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2019; 37:814-825. [DOI: 10.1089/photob.2019.4712] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Sepanta Hosseinpour
- School of Dentistry, Oral Health Centre, The University of Queensland, Brisbane, Australia
| | - Jan Tunér
- Private Practice, Swedish Laser Medical Society (SLMS), Stockholm, Sweden
| | - Reza Fekrazad
- Radiation Sciences Research Center, Laser Research Center in Medical Sciences, AJA University of Medical Sciences, Tehran, Iran
- International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research Network (USERN), Tehran, Iran
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16
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Magri AMP, Fernandes KR, Kido HW, Fernandes GS, Fermino SDS, Gabbai-Armelin PR, Braga FJC, Góes CP, Prado JLDS, Neves Granito R, Rennó ACM. Bioglass/PLGA associated to photobiomodulation: effects on the healing process in an experimental model of calvarial bone defect. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:105. [PMID: 31494718 DOI: 10.1007/s10856-019-6307-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 08/29/2019] [Indexed: 06/10/2023]
Abstract
Bioactive glasses (BG) are known for their ability to bond to bone tissue. However, in critical situations, even the osteogenic properties of BG may be not enough to induce bone consolidation. Thus, the enrichment of BG with polymers such as Poly (D, L-lactic-co-glycolic) acid (PLGA) and associated to photobiomodulation (PBM) may be a promising strategy to promote bone tissue healing. The aim of the present study was to investigate the in vivo performance of PLGA supplemented BG, associated to PBM therapy, using an experimental model of cranial bone defect in rats. Rats were distributed in 4 different groups (Bioglass, Bioglass/PBM, Bioglas/PLGA and BG/PLGA/PBM). After the surgical procedure to induce cranial bone defects, the pre-set samples were implanted and PBM treatment (low-level laser therapy) started (808 nm, 100 mW, 30 J/cm2). After 2 and 6 weeks, animals were euthanized, and the samples were retrieved for the histopathological, histomorphometric, picrosirius red staining and immunohistochemistry analysis. At 2 weeks post-surgery, it was observed granulation tissue and areas of newly formed bone in all experimental groups. At 6 weeks post-surgery, BG/PLGA (with or without PBM) more mature tissue around the biomaterial particles. Furthermore, there was a higher deposition of collagen for BG/PLGA in comparison with BG/PLGA/PBM, at second time-point. Histomorphometric analysis demonstrated higher values of BM.V/TV for BG compared to BG/PLGA (2 weeks post-surgery) and N.Ob/T.Ar for BG/PLGA compared to BG and BG/PBM (6 weeks post-surgery). This current study concluded that the use of BG/PLGA composites, associated or not to PBM, is a promising strategy for bone tissue engineering.
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Affiliation(s)
- Angela Maria Paiva Magri
- Federal University of São Paulo (UNIFESP), Rua Silva Jardim, 136, Santos, SP, 11015020, Brazil.
- University Center of the Guaxupé Educational Foundation (UNIFEG), Avenida Dona Floriana, Guaxupé, MG, 37800000, Brazil.
| | | | - Hueliton Wilian Kido
- Federal University of São Paulo (UNIFESP), Rua Silva Jardim, 136, Santos, SP, 11015020, Brazil
| | | | | | | | | | - Cíntia Pereirade Góes
- Federal University of São Paulo (UNIFESP), Rua Silva Jardim, 136, Santos, SP, 11015020, Brazil
| | | | - Renata Neves Granito
- Federal University of São Paulo (UNIFESP), Rua Silva Jardim, 136, Santos, SP, 11015020, Brazil
| | - Ana Claudia Muniz Rennó
- Federal University of São Paulo (UNIFESP), Rua Silva Jardim, 136, Santos, SP, 11015020, Brazil
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17
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Zaccara IM, Jardine AP, Mestieri LB, Quintana RM, Jesus L, Moreira MS, Grecca FS, Martins MD, Kopper PMP. Influence of photobiomodulation therapy on root development of rat molars with open apex and pulp necrosis. Braz Oral Res 2019; 33:e084. [PMID: 31460610 DOI: 10.1590/1807-3107bor-2019.vol33.0084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 06/25/2019] [Indexed: 02/21/2023] Open
Abstract
This study aimed to evaluate the role of photobiomodulation (PBM) in apexification and apexogenesis of necrotic rat molars with an open apex. Rat molars were exposed to the oral environment for 3 weeks. Canals were rinsed with 2.5% NaOCl and 17% EDTA, filled with antibiotic paste and sealed. After 7 days, canals were rinsed and divided into six groups (n=6): mineral trioxide aggregate (MTA); blood clot (BC); human dental pulp stem cells (hDPSC); MTA+PBM; BC+PBM; and hDPSC+PBM. In hDPSC groups, a 1% agarose gel scaffold was used. Two groups were not exposed: healthy tooth+PBM (n = 6), healthy tooth (n = 3); and one was exposed throughout the experiment: necrotic tooth (n = 3). In PBM groups, irradiation was performed with aluminum gallium indium phosphide (InGaAlP) diode laser for 30 days within 24-h intervals. After that, the specimens were processed for histological and immunohistochemical analyses. Necrotic tooth showed greater neutrophil infiltrate (p < 0.05). Necrotic tooth, healthy tooth, and healthy tooth+PBM groups showed absence of a thin layer of fibrous condensation in the periapical area. All the other groups stimulated the formation of a thicker layer of fibers (p < 0.05). All groups formed more mineralized tissue than necrotic tooth (p < 0.05). PBM associated with MTA, BC, or hDPSC formed more mineralized tissue (p < 0.05). MTA+PBM induced apexification (p < 0.05). Rabbit polyclonal anti-bone sialoprotein (BSP) antibody confirmed the histological findings of mineralized tissue formation, and hDPSC groups exhibited higher percentage of BSP-positive cells. It can be concluded that PBM improved apexification and favored apexogenesis in necrotic rat molars with an open apex.
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Affiliation(s)
- Ivana Maria Zaccara
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Graduate program, Porto Alegre, RS, Brazil
| | | | - Letícia Boldrin Mestieri
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Graduate program, Porto Alegre, RS, Brazil
| | - Ramiro Martins Quintana
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Graduate program, Porto Alegre, RS, Brazil
| | - Luciano Jesus
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Graduate program, Porto Alegre, RS, Brazil
| | | | - Fabiana Soares Grecca
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Graduate program, Porto Alegre, RS, Brazil
| | - Manoela Domingues Martins
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Graduate program, Porto Alegre, RS, Brazil
| | - Patrícia Maria Poli Kopper
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry, Graduate program, Porto Alegre, RS, Brazil
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18
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Serrage H, Heiskanen V, Palin WM, Cooper PR, Milward MR, Hadis M, Hamblin MR. Under the spotlight: mechanisms of photobiomodulation concentrating on blue and green light. Photochem Photobiol Sci 2019; 18:1877-1909. [PMID: 31183484 PMCID: PMC6685747 DOI: 10.1039/c9pp00089e] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/30/2019] [Indexed: 12/31/2022]
Abstract
Photobiomodulation (PBM) describes the application of light at wavelengths ranging from 400-1100 nm to promote tissue healing, reduce inflammation and promote analgesia. Traditionally, red and near-infra red (NIR) light have been used therapeutically, however recent studies indicate that other wavelengths within the visible spectrum could prove beneficial including blue and green light. This review aims to evaluate the literature surrounding the potential therapeutic effects of PBM with particular emphasis on the effects of blue and green light. In particular focus is on the possible primary and secondary molecular mechanisms of PBM and also evaluation of the potential effective parameters for application both in vitro and in vivo. Studies have reported that PBM affects an array of molecular targets, including chromophores such as signalling molecules containing flavins and porphyrins as well as components of the electron transport chain. However, secondary mechanisms tend to converge on pathways induced by increases in reactive oxygen species (ROS) production. Systematic evaluation of the literature indicated 72% of publications reported beneficial effects of blue light and 75% reported therapeutic effects of green light. However, of the publications evaluating the effects of green light, reporting of treatment parameters was uneven with 41% failing to report irradiance (mW cm-2) and 44% failing to report radiant exposure (J cm-2). This review highlights the potential of PBM to exert broad effects on a range of different chromophores within the body, dependent upon the wavelength of light applied. Emphasis still remains on the need to report exposure and treatment parameters, as this will enable direct comparison between different studies and hence enable the determination of the full potential of PBM.
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Affiliation(s)
- Hannah Serrage
- College of Medical and Dental Sciences, University of Birmingham, UK.
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Nunes CMM, Ferreira CL, Bernardo DV, Oblack GB, Longo M, Santamaria MP, Jardini MAN. The influence of LLLT applied on applied on calvarial defect in rats under effect of cigarette smoke. J Appl Oral Sci 2019; 27:e20180621. [PMID: 31215599 PMCID: PMC6559756 DOI: 10.1590/1678-7757-2018-0621] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/17/2019] [Indexed: 12/26/2022] Open
Abstract
Objective Considering the global public health problem of smoking, which can negatively influence bone tissue repair, the aim of this study is to analyze the influence of photobiomodulation therapy (PBM) on calvaria defects created surgically in specimens under the effect of cigarette smoke and analyzed with use of histomorphometric and immunohistochemistry techniques. Methodology Calvaria defects 4.1 mm in diameter were surgically created in the calvaria of 90-day-old rats (n=60) that were randomly divided into 4 experimental groups containing 15 animals each: control group (C), smoking group (S), laser group (L), and smoke associated with laser group (S+L). The animals were subjected to surgery for calvaria defects and underwent PBM, being evaluated at 21, 45, and 60 days post-surgery. The specimens were then processed for histomorphometric and immunohistochemistry analyses. The area of bone neoformation (ABN), percentage of bone neoformation (PBNF), and the remaining distance between the edges of the defects (D) were analyzed histometrically. Quantitative analysis of the TRAP immunolabeled cells was also performed. The data were subjected to analysis of variance (ANOVA) in conjunction with Tukey’s test to verify the statistical differences between groups (p<0.05). Results The smoking group showed less ABN compared to the other experimental groups in all periods, and it also showed more D at 21 days compared to the remaining groups and at 45 days compared to the laser group. The smoking group showed a lower PNBF compared to the laser group in all experimental periods and compared to smoking combined with LLLT group at 21 days. Conclusions PBM acted on bone biomodulation, thus stimulating new bone formation and compensating for the negative factor of smoking, which can be used as a supportive therapy during bone repair processes.
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Affiliation(s)
- Camilla Magnoni Moretto Nunes
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia de São José dos Campos, curso de Odontologia, disciplina de Periodontia, São José dos Campos, São Paulo, Brasil
| | - Camila Lopes Ferreira
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia de São José dos Campos, curso de Odontologia, disciplina de Periodontia, São José dos Campos, São Paulo, Brasil
| | - Daniella Vicensotto Bernardo
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia de São José dos Campos, curso de Odontologia, disciplina de Periodontia, São José dos Campos, São Paulo, Brasil
| | - Gabriel Barbosa Oblack
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia de São José dos Campos, curso de Odontologia, disciplina de Periodontia, São José dos Campos, São Paulo, Brasil
| | - Mariéllen Longo
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia de São José dos Campos, curso de Odontologia, disciplina de Periodontia, São José dos Campos, São Paulo, Brasil
| | - Mauro Pedrine Santamaria
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia de São José dos Campos, curso de Odontologia, disciplina de Periodontia, São José dos Campos, São Paulo, Brasil
| | - Maria Aparecida Neves Jardini
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia de São José dos Campos, curso de Odontologia, disciplina de Periodontia, São José dos Campos, São Paulo, Brasil
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Hosseinpour S, Fekrazad R, Arany PR, Ye Q. Molecular impacts of photobiomodulation on bone regeneration: A systematic review. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2019; 149:147-159. [PMID: 31002851 DOI: 10.1016/j.pbiomolbio.2019.04.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 04/16/2019] [Indexed: 12/13/2022]
Abstract
Photobiomodulation (PBM) encompasses a light application aimed to increase healing process, tissue regeneration, and reducing inflammation and pain. PBM is specifically aimed to modify the expression of cellular molecules; however, PBM impacts on cellular and molecular pathways especially in bone regenerative medicine have been investigated in scattered different studies. The purpose of the current study is to systematically review evidence on molecular impact of PBM on bone regeneration. A comprehensive electronic search in Medline, Scopus, EMBASE, EBSCO, Cochrane library, web of science, and google scholar was conducted from January 1975 to October 2018 limited to English language publications on administrations of photobiomodulation for bone regeneration which evaluated biological factors. In addition, hand search of selected journals was done to retrieve all articles. This systematic review was performed based on PRISMA guideline. Among these studies, five articles reported in vitro results, twelve articles were in vivo, and three of them were clinical trials. The data tabulated according to the type of markers (osteogenic markers, angiogenic markers, growth factors, and inflammation mediators). PBM's effects depend on many parameters which energy density is more important than the others. PBM can significantly enhance expression of osteocalcin, collagen, RUNX-2, vascular endothelial growth factor, bone morphogenic proteins, and COX-2. Although since the heterogeneity of the studies and their limitations, an evidence-based decision for definite therapeutic application of PBM is still unattainable, the findings of our review can help other researchers to ameliorate their study design and elect more efficient approach for their investigation.
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Affiliation(s)
- Sepanta Hosseinpour
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia; Department of Periodontology, Dental Faculty - Laser Research Center in Medical Sciences, AJA University of Medical Sciences, 19839, Fatemi, Tehran, Iran.
| | - Reza Fekrazad
- Department of Periodontology, Dental Faculty - Laser Research Center in Medical Sciences, AJA University of Medical Sciences, 19839, Fatemi, Tehran, Iran; International Network for Photo Medicine and Photo Dynamic Therapy (INPMPDT), Universal Scientific Education and Research Network (USERN), Tehran, Iran.
| | - Praveen R Arany
- Department of Oral Biology, School of Dental Medicine, University at Buffalo, The State University of New York, NY, 14214, USA.
| | - Qingsong Ye
- School of Dentistry, The University of Queensland, Brisbane, Queensland 4006, Australia.
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Magri AMP, Fernandes KR, Kido HW, Fernandes GS, Fermino SDS, Gabbai-Armelin PR, Braga FJC, de Góes CP, Prado JLDS, Granito RN, Rennó ACM. Photobiomodulation guided healing in a sub-critical bone defect in calvarias of rats. Laser Ther 2019; 28:171-179. [PMID: 32009730 DOI: 10.5978/islsm.28_19-or-13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 06/05/2019] [Indexed: 12/11/2022]
Abstract
Background Photobiomodulation presents stimulatory effects on tissue metabolism, constituting a promising strategy to produce bone tissue healing. Objective the aim of the present study was to investigate the in vivo performance of PBM using an experimental model of cranial bone defect in rats. Material and Methods rats were distributed in 2 different groups (control group and PBM group). After the surgical procedure to induce cranial bone defects, PBM treatment initiated using a 808 nm laser (100 mW, 30 J/cm2, 3 times/week). After 2 and 6 weeks, animals were euthanized and the samples were retrieved for the histopathological, histomorphometric, picrosirius red staining and immunohistochemistry analysis. Results Histology analysis demonstrated that for PBM most of the bone defect was filled with newly formed bone (with a more mature aspect when compared to CG). Histomorphomeric analysis also demonstrated a higher amount of newly formed bone deposition in the irradiated animals, 2 weeks post-surgery. Furthermore, there was a more intense deposition of collagen for PBM, with ticker fibers. Results from Runx-2 immunohistochemistry demonstrated that a higher immunostaining for CG 2 week's post-surgery and no other difference was observed for Rank-L immunostaining. Conclusion This current study concluded that the use of PBM was effective in stimulating newly formed bone and collagen fiber deposition in the sub-critical bone defect, being a promising strategy for bone tissue engineering.
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Affiliation(s)
- Angela Maria Paiva Magri
- Federal University of São Paulo (UNIFESP). Rua Silva Jardim, 136, Santos, SP, 11015020, Brazil.,University Center of the Guaxupé Educational Foundation (UNIFEG), Avenida Dona Floriana, 463, Guaxupé, MG, 37800000, Brazil
| | | | - Hueliton Wilian Kido
- Federal University of São Paulo (UNIFESP). Rua Silva Jardim, 136, Santos, SP, 11015020, Brazil
| | | | | | | | | | - Cintia Pereira de Góes
- Federal University of São Paulo (UNIFESP). Rua Silva Jardim, 136, Santos, SP, 11015020, Brazil
| | | | - Renata Neves Granito
- Federal University of São Paulo (UNIFESP). Rua Silva Jardim, 136, Santos, SP, 11015020, Brazil
| | - Ana Claudia Muniz Rennó
- Federal University of São Paulo (UNIFESP). Rua Silva Jardim, 136, Santos, SP, 11015020, Brazil
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P R GA, H M C, D F S, M A C, A M P M, K R F, A C M R. Association of Bioglass/Collagen/Magnesium composites and low level irradiation: effects on bone healing in a model of tibial defect in rats. Laser Ther 2018; 27:271-282. [PMID: 31182902 DOI: 10.5978/islsm.27_18-or-25] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 08/27/2018] [Indexed: 12/17/2022]
Abstract
Background and Aims Bioglass (BG) and Magnesium (Mg) composites have been used for bone tissue engineering proposes due to its osteogenic activity and increased mechanical properties respectively. The introduction of Collagen (Col) is a common and efficient approach for bone tissue engineering applications toward cell proliferation. Recently, studies demonstrated that BG/Col/Mg composites presented proper mechanical properties and were non-cytotoxic. Although the osteogenic potential of BG/Col/Mg composites, in specific situations, biomaterials may not be capable of stimulating bone tissue. Therefore, combining biomaterial matrices and effective post-operative therapies (such as low level lasertherapy; LLLT) may be necessary to appropriately stimulate bone tissue. In this context, the aim of this study was to develop intra- and extra-operatively bone regenerative therapeutical strategies, based on the association of Col-enriched BG/Mg composites with LLLT. Materials and Methods Thereby, an in vivo study, using tibial defect in Wistar rats, was performed in order to investigate the bone regenerative capacity. LLLT treatment (Ga-Al-As laser 808 nm, 30 mW, 2.8 J, 94 s) was performed 3 times a week, in non-consecutive days. Histology, histomorphometry, immunohistochemical analysis and mechanical test were done after 15 and 45 days post-implantation. Results The results showed that Col could be successfully introduced into BG/Mg and the association of BG/Mg/Col and LLLT constituted an optimized treatment for accelerating material degradation and increasing bone deposition. Additionally, mechanical tests showed an increased maximal load for BG/Mg + LLLT compared to other groups. Conclusions These results lead us to conclude that the Col enriched BG/Mg composites irradiated with LLLT presented superior biological and mechanical properties, demonstrating to be a promising bone graft.
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Affiliation(s)
- Gabbai-Armelin P R
- Laboratory of Biomaterials and Tissue Engineering, Department of Biosciences, Federal University of Sao Paulo (UNIFESP)
| | - Caliari H M
- Laboratory of Biomaterials and Tissue Engineering, Department of Biosciences, Federal University of Sao Paulo (UNIFESP)
| | - Silva D F
- Laboratory of Biomaterials and Tissue Engineering, Department of Biosciences, Federal University of Sao Paulo (UNIFESP)
| | - Cruz M A
- Laboratory of Biomaterials and Tissue Engineering, Department of Biosciences, Federal University of Sao Paulo (UNIFESP)
| | - Magri A M P
- Laboratory of Biomaterials and Tissue Engineering, Department of Biosciences, Federal University of Sao Paulo (UNIFESP)
| | - Fernandes K R
- Laboratory of Biomaterials and Tissue Engineering, Department of Biosciences, Federal University of Sao Paulo (UNIFESP)
| | - Renno A C M
- Laboratory of Biomaterials and Tissue Engineering, Department of Biosciences, Federal University of Sao Paulo (UNIFESP)
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Wang L, Wu F, Liu C, Song Y, Guo J, Yang Y, Qiu Y. Low-level laser irradiation modulates the proliferation and the osteogenic differentiation of bone marrow mesenchymal stem cells under healthy and inflammatory condition. Lasers Med Sci 2018; 34:169-178. [PMID: 30456535 DOI: 10.1007/s10103-018-2673-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 01/12/2018] [Indexed: 10/27/2022]
Abstract
The aim of this in vitro study was to evaluate the effects of low-level laser therapy (LLLT) at different energy intensities on proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) under healthy and inflammatory microenvironments. Human BMSCs and BMSCs from inflammatory conditions (i-BMSCs, BMSCs treated with tumor necrosis factor α; TNF-α) were subject to LLLT (Nd:YAG;1064 nm) at different intensities. We designed one control group (without irradiation) and four testing groups (irradiation at 2, 4, 8, and 16 J/cm2) for both BMSCs and i-BMSCs. Cell proliferation was measured using colony-forming unit fibroblast assay and 3-(4,5-dimethylthiazol-2yl)-2,5-diphenyltetrazolium bromide assay. Osteogenic capacity of cells was determined by alkaline phosphatase (ALP) staining, ALP activity assay, Alizarin Red S staining and the mRNA transcript levels of genes runt-related transcription factor 2 (Runx2), ALP, and osteocalcin. Moreover, the effects of LLLT on secretion of TNF-α in BMSCs and i-BMSCs were measured by enzyme-linked immunosorbent assay. Our results demonstrated LLLT could significantly promote BMSC proliferation and osteogenesis at densities of 2 and 4 J/cm2. LLLT at density of 8 J/cm2 could promote the proliferation and osteogenesis of i-BMSCs. However, LLLT at 16 J/cm2 significantly suppressed the proliferation and osteogenesis of BMSCs both in healthy and in inflammatory microenvironment. Moreover, we also found that the expression of TNF-α was obviously inhibited by LLLT at 4, 8, and 16 J/cm2, in an inflammatory microenvironment. Considering these findings, LLLT could improve current in vitro methods of differentiating BMSCs under healthy and inflammatory microenvironments prior to transplantation.
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Affiliation(s)
- Liying Wang
- Department of Stomatology, Lanzhou General Hospital, Lanzhou Command of PLA, 333 South Binhe Road, Qili River District, Lanzhou, 730050, Gansu, People's Republic of China.,Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, Lanzhou General Hospital, Lanzhou Command of PLA, Lanzhou, Gansu, China
| | - Fan Wu
- Department of Laparoscope Surgery, The 451st Hospital of People's Liberation Army, Xi'an, Shaanxi, China
| | - Chen Liu
- Department of General Dentistry, Stomatological Hospital of Xi'an Jiao Tong University, Xi'an, Shaanxi, China
| | - Yang Song
- Department of Stomatology, The 323rd Hospital of People's Liberation Army, Xi'an, Shaanxi, China
| | - Jiawen Guo
- Department of Stomatology, Lanzhou General Hospital, Lanzhou Command of PLA, 333 South Binhe Road, Qili River District, Lanzhou, 730050, Gansu, People's Republic of China
| | - Yanwei Yang
- Department of Stomatology, Lanzhou General Hospital, Lanzhou Command of PLA, 333 South Binhe Road, Qili River District, Lanzhou, 730050, Gansu, People's Republic of China
| | - Yinong Qiu
- Department of Stomatology, Lanzhou General Hospital, Lanzhou Command of PLA, 333 South Binhe Road, Qili River District, Lanzhou, 730050, Gansu, People's Republic of China.
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de Freitas NR, Guerrini LB, Esper LA, Sbrana MC, Dalben GDS, Soares S, de Almeida ALPF. Evaluation of photobiomodulation therapy associated with guided bone regeneration in critical size defects. In vivo study. J Appl Oral Sci 2018; 26:e20170244. [PMID: 29742256 PMCID: PMC5933825 DOI: 10.1590/1678-7757-2017-0244] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 08/08/2017] [Accepted: 09/18/2017] [Indexed: 03/25/2024] Open
Abstract
The repair of bone defects raises the interest of investigators in several health specialties. Grafting techniques with bone substitutes and laser therapies have been investigated to replace autogenous bone and accelerate the bone healing process. Objective To evaluate the effect of photobiomodulation therapy (PBMT) associated with guided bone regeneration (GBR) in critical size defects. Material and Methods The study was conducted on 80 male rats (Rattus norvegicus albinus, Wistar) submitted to surgical creation of a critical size defect on the calvaria, divided into eight study groups: group C (control - only blood clot); group M (collagen membrane); group PBMT (photobiomodulation therapy); group AB (autogenous bone); group AB+PBMT; group AB+M; group PBMT+M; group AB+PBMT+M. The animals were killed 30 days postoperatively. After tissue processing, bone regeneration was evaluated by histomorphometric analysis and statistical analyses were performed (Tukey test, p<0.05). Results All groups had greater area of newly formed bone compared to group C (9.96±4.49%). The group PBMT+M (achieved the greater quantity of new bone (64.09±7.62%), followed by groups PBMT (47.67±8.66%), M (47.43±15.73%), AB+PBMT (39.15±16.72%) and AB+PBMT+M (35.82±7.68%). After group C, the groups AB (25.10±16.59%) and AB+M (22.72±13.83%) had the smallest quantities of newly formed bone. The area of remaining particles did not have statistically significant difference between groups AB+M (14.93±8.92%) and AB+PBMT+M (14.76±6.58%). Conclusion The PBMT utilization may be effective for bone repair, when associated with bone regeneration techniques.
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Affiliation(s)
- Nicole Rosa de Freitas
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Pós-Graduação em Reabilitação Oral, Bauru, São Paulo, Brasil
| | - Luísa Belluco Guerrini
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Pós-Graduação em Reabilitação Oral, Bauru, São Paulo, Brasil
| | - Luis Augusto Esper
- Universidade de São Paulo, Hospital de Reabilitação de Anomalias Craniofaciais, Seção de Periodontia, Bauru, São Paulo, Brasil
| | - Michyele Cristhiane Sbrana
- Universidade de São Paulo, Hospital de Reabilitação de Anomalias Craniofaciais, Seção de Periodontia, Bauru, São Paulo, Brasil
| | - Gisele da Silva Dalben
- Universidade de São Paulo, Hospital de Reabilitação de Anomalias Craniofaciais, Seção de Odontopediatria e Saúde Coletiva, Bauru, São Paulo, Brasil
| | - Simone Soares
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Prótese e Periodontia, Bauru, São Paulo, Brasil
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Bayat M, Virdi A, Jalalifirouzkouhi R, Rezaei F. Comparison of effects of LLLT and LIPUS on fracture healing in animal models and patients: A systematic review. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2018; 132:3-22. [PMID: 28688752 DOI: 10.1016/j.pbiomolbio.2017.07.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 06/30/2017] [Accepted: 07/04/2017] [Indexed: 12/29/2022]
Abstract
The aim of this paper is to study the in vivo potency of low-level laser therapy (LLLT) and low intensity pulsed ultrasound (LIPUS) alone, accompanied by bone grafts, or accompanied by other factors on fracture healing in animal models and patients. In this paper, we aim to systematically review the published scientific literature regarding the use of LLLT and LIPUS to accelerate fracture healing in animal models and patients. We searched the PubMed database for the terms LLLT or LIPUS and/or bone, and fracture. Our analysis also suggests that both LIPUS and LLLT may be beneficial to fracture healing in patients, and that LIPUS is more effective. These finding are of considerable importance in those treatments with a LIPUS, as a laser device may reduce healing time. The most clinically relevant impact of the LIPUS treatment could be a significant reduction in the proportion of patients who go on to develop a nonunion. If it is confirmed that the therapeutic influence is true and reliable, patients will obtain benefits from LIPUS and LLLT. Further clinical trials of high methodological quality are needed in order to determine the optimal role of LIPUS and LLLT in fracture healing in patients.
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Affiliation(s)
- Mohammad Bayat
- Department of Cell & Molecular Medicine, Rush University Medical Center, Chicago, IL, USA; Cellular and Molecular Biology Research Center, Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Amarjit Virdi
- Department of Cell & Molecular Medicine, (formerly, Anatomy and Cell Biology), Rush University Medical Center, 1750 W. Harrison St., Suite 1413A, Chicago, IL 60612, USA.
| | | | - Fatemehalsadat Rezaei
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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26
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Xu Y, Lin Y, Gao S, Shen J. Study on mechanism of release oxygen by photo-excited hemoglobin in low-level laser therapy. Lasers Med Sci 2017; 33:135-139. [DOI: 10.1007/s10103-017-2363-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 10/15/2017] [Indexed: 12/20/2022]
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Fernandes K, Magri A, Kido H, Parisi J, Assis L, Fernandes K, Mesquita-Ferrari R, Martins V, Plepis A, Zanotto E, Peitl O, Renno A. Biosilicate/PLGA osteogenic effects modulated by laser therapy: In vitro and in vivo studies. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:258-265. [DOI: 10.1016/j.jphotobiol.2017.06.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 05/31/2017] [Accepted: 06/02/2017] [Indexed: 11/24/2022]
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de Almeida JM, de Moraes RO, Gusman DJR, Faleiros PL, Nagata MJH, Garcia VG, Theodoro LH, Bosco AF. Influence of low-level laser therapy on the healing process of autogenous bone block grafts in the jaws of systemically nicotine-modified rats: A histomorphometric study. Arch Oral Biol 2017; 75:21-30. [DOI: 10.1016/j.archoralbio.2016.12.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 10/21/2016] [Accepted: 12/01/2016] [Indexed: 10/20/2022]
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29
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Bosco AF, Faleiros PL, Carmona LR, Garcia VG, Theodoro LH, de Araujo NJ, Nagata MJH, de Almeida JM. Effects of low-level laser therapy on bone healing of critical-size defects treated with bovine bone graft. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 163:303-10. [DOI: 10.1016/j.jphotobiol.2016.08.040] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 08/25/2016] [Indexed: 10/21/2022]
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Moghaddam A, Breier L, Haubruck P, Bender D, Biglari B, Wentzensen A, Zimmermann G. Non-unions treated with bone morphogenic protein 7: introducing the quantitative measurement of human serum cytokine levels as promising tool in evaluation of adjunct non-union therapy. JOURNAL OF INFLAMMATION-LONDON 2016; 13:3. [PMID: 26807043 PMCID: PMC4724145 DOI: 10.1186/s12950-016-0111-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 01/19/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND In this study we sought to determine if application of bone morphogenic protein 7 (BMP-7) promotes physiological bone healing of non-unions and to investigate if serum cytokine analysis may serve as a promising tool in the analysis of adjunct non-union therapy. Therefore we analyzed the influence of BMP-7 application on the serum cytokine expression patterns on patients with impaired bone healing compared to patients that showed proper bone healing. METHODS Our study involved analyzing blood samples from 208 patients with long bone fractures together with patients that subsequently developed non-unions. From this large pool, 15 patients with atrophic non-union were matched to 15 patients with atrophic non-union treated with local application of BMP-7 as well as normal bone healing. Changes in the cytokine expression patterns were monitored during the 1st, 2nd, 4th, 8th, 12th and 52nd week. The patients were followed both clinically and radiologically for the entire duration of the study. Serum cytokine expression levels of transforming growth factor beta (TGF-β), platelet-derived growth factor (PDGF) and basic fibroblast growth factor (bFGF) were analyzed and compared. RESULTS Serum expression of TGF-β were nearly parallel in all three groups, however serum concentrations were significantly higher in patients with proper bone healing and those treated with BMP-7 than in patients with non-unions (p < 0.05). bFGF serum concentrations increased initially in patients with proper bone healing and in those treated with BMP-7. Afterwards, values decreased; bFGF serum concentrations in the BMP-7 group were significantly higher than in the other groups (p < 0.05). PDGF serum concentration levels were nearly parallel in all groups, serum concentrations were significantly higher in patients with proper bone healing and those treated with BMP-7 than in patients with non-unions (p < 0.05). CONCLUSION Treatment with BMP-7 in patients with former non-unions led to similar cytokine expression patterns after treatment as those found in patients with proper bone healing. Our results suggest that treatment with BMP-7 promote healing of non-unions. Furthermore, quantitative measurement of serum cytokine expression is a promising tool for evaluating the effectiveness of additional non-union therapies such as adjunct application of growth factors.
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Affiliation(s)
- Arash Moghaddam
- HTRG - Heidelberg Trauma Research Group, Trauma and Reconstructive Surgery, Center of Orthopaedics, Traumatology and Paraplegiology, Heidelberg University Hospital, Schlierbacher Landstraße 200a, D-69118 Heidelberg, Germany
| | - Lisa Breier
- Department of Orthopaedics and Traumatology, St. Marienkrankenhaus, Salzburger Str. 15, 67067 Ludwigshafen, Germany
| | - Patrick Haubruck
- HTRG - Heidelberg Trauma Research Group, Trauma and Reconstructive Surgery, Center of Orthopaedics, Traumatology and Paraplegiology, Heidelberg University Hospital, Schlierbacher Landstraße 200a, D-69118 Heidelberg, Germany
| | - Daniel Bender
- Department for anesthesiology, Stadtklinik Frankenthal, Elsa-Brändenström Str. 1, D-67227 Frankenthal, Germany
| | - Bahram Biglari
- Berufsgenossenschaftliche Unfallklinik Ludwigshafen, Department of Paraplegiology, Ludwig-Guttmann-Straße-13, D-67071 Ludwigshafen, Germany
| | - Andreas Wentzensen
- Berufsgenossenschaftliche Unfallklinik Ludwigshafen, Trauma Center, Ludwig-Guttmann-Straße-13, D-67071 Ludwigshafen, Germany
| | - Gerald Zimmermann
- Department for Trauma Surgery, Theresienkrankenhaus und St. Hedwigs-Klinik GmbH, Bassermannstr. 1, D-68165 Mannheim, Germany
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