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Weissheimer T, Bischoff KF, Michel CHT, Só BB, Martins MD, Souza MA, da Rosa RA, Só MVR. Does photobiomodulation on the root surface decrease the occurrence of root resorption in reimplanted teeth? A systematic review of animal studies. Restor Dent Endod 2023; 48:e24. [PMID: 37675444 PMCID: PMC10477425 DOI: 10.5395/rde.2023.48.e24] [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: 02/12/2023] [Revised: 03/26/2023] [Accepted: 03/29/2023] [Indexed: 09/08/2023] Open
Abstract
This review aimed to answer the following question "Does photobiomodulation treatment of the root surface decrease the occurrence of root resorption in reimplanted teeth?" Electronic searches were performed in the MEDLINE/PubMed, Cochrane Library, Scopus, Web of Science, Embase, and Grey Literature Report databases. Risk of bias was evaluated using SYRCLE Risk of Bias tool. The Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) tool was used to assess the certainty of evidence. In total, 6 studies were included. Five studies reported a reduced occurrence of root resorption in teeth that received photobiomodulation treatment of the root surface prior to replantation. Only 1 study reported contradictory results. The photobiomodulation parameters varied widely among studies. GRADE assessment showed a low certainty of evidence. It can be inferred that photobiomodulation treatment of the root surface prior to replantation of teeth can reduce the occurrence of root resorption. Nonetheless, further clinical studies are needed. Trial Registration PROSPERO Identifier: CRD42022349891.
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Affiliation(s)
- Theodoro Weissheimer
- Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Karolina Frick Bischoff
- Department of Restorative Dentistry, School of Dentistry, University of Passo Fundo, Passo Fundo, RS, Brazil
| | - Carolina Horn Troian Michel
- Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Bruna Barcelos Só
- Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Manoela Domingues Martins
- Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Matheus Albino Souza
- Department of Restorative Dentistry, School of Dentistry, University of Passo Fundo, Passo Fundo, RS, Brazil
| | - Ricardo Abreu da Rosa
- Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Marcus Vinícius Reis Só
- Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
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Gholami L, Khorsandi K, Taghdiri Nooshabadi V, Shahabi S, Jazaeri M, Esfahani H, Rabiei Faradonbeh D, Veisi Malekshahi Z, Afsartala Z, Mostafa N. Effect of Photobiomodulation on Structure and Function of Extracellular Vesicle Secreted from Mesenchymal Stem Cells. Photochem Photobiol 2022; 98:1447-1458. [DOI: 10.1111/php.13633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 04/02/2022] [Accepted: 04/03/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Leila Gholami
- Department of periodontics, Dental Research Center Hamadan University of Medical Sciences Hamadan Iran
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry University of British Columbia Canada
| | - Khatereh Khorsandi
- Department of Photodynamic, Medical Laser Research Center Yara Institute ACECR Tehran Iran
- Department of Biochemistry and Molecular Medicine, School of Medicine and Health Sciences The George Washington University Washington DC 20037 USA
| | - Vajihe Taghdiri Nooshabadi
- Department of Tissue Engineering and Applied Cell Sciences, School of Medicine Semnan University of Medical Science Iran
| | - Shiva Shahabi
- Student Research Committee, School of Dentistry Hamadan University of Medical Sciences Iran
| | - Marzieh Jazaeri
- Student Research Committee, School of Dentistry Hamadan University of Medical Sciences Iran
| | - HomaSadat Esfahani
- Department of Photodynamic, Medical Laser Research Center Yara Institute ACECR Tehran Iran
| | - Davood Rabiei Faradonbeh
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine Tehran University of Medical Sciences Tehran Iran
| | - Ziba Veisi Malekshahi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine Tehran University of Medical Sciences Tehran Iran
| | - Zohreh Afsartala
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute Tehran University of Medical Science Tehran Iran
| | - Nesrine Mostafa
- Department of Oral Health Sciences, Faculty of Dentistry University of British Columbia Canada
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3
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Oliveira RF, Marquiore LF, Gomes CBS, de Abreu PTR, Ferreira LAQ, Diniz LA, Gomes NA, Jácome‐Santos H, Moreno A, Macari S, Mesquita RA, Silva TA, Marques MM, Diniz IMA. Interplay between epithelial and mesenchymal cells unveils essential proinflammatory and pro‐resolutive mediators modulated by photobiomodulation therapy at 660 nm. Wound Repair Regen 2022; 30:345-356. [DOI: 10.1111/wrr.13010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 03/04/2022] [Accepted: 03/27/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Rafaela F. Oliveira
- Department of Restorative Dentistry School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Larissa F. Marquiore
- Department of Restorative Dentistry School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Cristopher B. S. Gomes
- Department of Restorative Dentistry School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Priscila T. R. de Abreu
- Department of Oral Pathology and Surgery School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Luiza A. Q. Ferreira
- Department of Restorative Dentistry School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Luiza A. Diniz
- Department of Restorative Dentistry School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Natália A. Gomes
- Department of Restorative Dentistry School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Humberto Jácome‐Santos
- Department of Restorative Dentistry School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
- Department of Oral Pathology and Surgery School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Amália Moreno
- Department of Oral Pathology and Surgery School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Soraia Macari
- Department of Restorative Dentistry School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Ricardo A. Mesquita
- Department of Oral Pathology and Surgery School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Tarcília A. Silva
- Department of Oral Pathology and Surgery School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
| | - Márcia M. Marques
- Post‐Graduation Program in Dentistry, Ibirapuera University São Paulo São Paulo Brazil
| | - Ivana M. A. Diniz
- Department of Restorative Dentistry School of Dentistry, Universidade Federal de Minas Gerais Belo Horizonte Minas Gerais Brazil
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Li W, Shan T, Shi J, Fu Z, Qi S, Sun Y, Wang C, Lai W. Cell Growth Factor and Estrogen Inducing Menstrual Blood-Derived Stem Cells (MenSC) Differentiate into Endometrial Epithelial Cells. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.2929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Extracted MenSC (Menstrual blood-derived stem cells) from female menstrual blood. Added various exogenous factors in-vitro and simulated the female uterine environment to observe how to make MenSC differentiation into Endometrial epithelial cells by artificial induction. MenSCs
were divided into 4 groups: 2.5×10−5 mol/L E group, 1.613 nmol/L EGF group, 2.5×10−5 mol/L E+1.613 nmol/L EGF group, control Group (only MenSCs); the relevant indicators of the experiment includes cell staining and Western Blot to detect CK and
VIM protein content; RT-PCR to detect CK-19 mRNA and VIM mRNA. The cell staining results showed that E+EGF group had significant differentiation in 7 days and 14 days. CK-19mRNA of E+EGF group was significantly higher than other groups, and the EGF group expression was obviously higher than
that of E group, and VIMmRNA expression is opposite to that. The protein expression had the similar performance. MenSC can differentiate into endometrial epithelial cells after induced by E and EFG; and the co-culture of E and EFG can achieve better differentiation, which proves their work
together in MenSC differentiate towards endometrial epithelial cells.
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Affiliation(s)
- Wei Li
- Department of Obstetrics and Gynecology, Hebei University of Engineering, Handan, Hebei, 056038, China
| | - Tieying Shan
- Department of Histology and Embryology, Medical College, Hebei University of Engineering, Handan, Hebei, 056038, China
| | - Jianping Shi
- Pediatric Internal Medicine, Renqiu People’s Hospital, Cangzhou City, Hebei Province, 062550, China
| | - Zexian Fu
- Department of Oncology, Affiliated Hospital of Hebei University of Engineering, Handan, Hebei, 056038, China
| | - Shujing Qi
- Department of Nutrition, Affiliated Hospital of Hebei University of Engineering, Handan, Hebei, 056038, China
| | - Yuhang Sun
- Department of Plastic Surgery, Affiliated Hospital of Hebei University of Engineering, Handan, Hebei, 056038, China
| | - Congmin Wang
- Department of Neurology, Affiliated Hospital of Hebei University of Engineering, Handan, Hebei, 056038, China
| | - Weiyang Lai
- Department of Paediatrics, Affiliated Hospital of Hebei University of Engineering, Handan, Hebei, 056038, China
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Effects of 445 nm, 520 nm, and 638 nm Laser Irradiation on the Dermal Cells. Int J Mol Sci 2021; 22:ijms222111605. [PMID: 34769035 PMCID: PMC8584201 DOI: 10.3390/ijms222111605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/19/2021] [Accepted: 10/25/2021] [Indexed: 11/18/2022] Open
Abstract
Background: The invention of non-ionizing emission devices revolutionized science, medicine, industry, and the military. Currently, different laser systems are commonly used, generating the potential threat of excessive radiation exposure, which can lead to adverse health effects. Skin is the organ most exposed to laser irradiation; therefore, this study aims to evaluate the effects of 445 nm, 520 nm, and 638 nm non-ionizing irradiation on keratinocytes and fibroblasts. Methods: Keratinocytes and fibroblasts were exposed to a different fluency of 445 nm, 520 nm, and 638 nm laser irradiation. In addition, viability, type of cell death, cell cycle distribution, and proliferation rates were investigated. Results: The 445 nm irradiation was cytotoxic to BJ-5ta (≥58.7 J/cm2) but not to Ker-CT cells. Exposure influenced the cell cycle distribution of Ker-CT (≥61.2 J/cm2) and BJ-5ta (≥27.6 J/cm2) cells, as well as the Bj-5ta proliferation rate (≥50.5 J/cm2). The 520 nm irradiation was cytotoxic to BJ-5ta (≥468.4 J/cm2) and Ker-CT (≥385.7 J/cm2) cells. Cell cycle distribution (≥27.6 J/cm2) of Ker-CT cells was also affected. The 638 nm irradiation was cytotoxic to BJ-5ta and Ker-CT cells (≥151.5 J/cm2). The proliferation rate and cell cycle distribution of BJ-5ta (≥192.9 J/cm2) and Ker-CT (13.8 and 41.3 J/cm2) cells were also affected. Conclusions: At high fluences, 455 nm, 520 nm, and 638 nm irradiation, representing blue, green, and red light spectra, are hazardous to keratinocytes and fibroblasts. However, laser irradiation may benefit the cells at low fluences by modulating the cell cycle and proliferation rate.
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Pansani TN, Cardoso LM, Augusto LA, Ribeiro IM, de Souza Costa CA, Basso FG. Effects of EGF-coated titanium surfaces on adhesion and metabolism of bisphosphonate-treated human keratinocytes and gingival fibroblasts. Clin Oral Investig 2021; 25:5775-5784. [PMID: 33852064 DOI: 10.1007/s00784-021-03880-1] [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: 12/04/2020] [Accepted: 03/10/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To assess the effects of epidermal growth factor (EGF)-coated titanium (Ti) discs on the adhesion and metabolism of keratinocytes and gingival fibroblasts exposed to nitrogen-containing bisphosphonates. MATERIALS AND METHODS Keratinocytes and fibroblasts were seeded (1 × 105 cells/disc) on Ti discs coated with EGF (100 nM). After 24 h, cells were exposed or not to sodium alendronate (SA) or zoledronic acid (ZA) at different concentrations (0 = control, 0.5, 1, or 5 μM) for 48 h. Cell adhesion to the substrates was evaluated by fluorescence microscopy. Cell viability (alamarBlue, n = 6) and synthesis of vascular endothelial growth factor (VEGF), matrix metalloproteinase-2 (MMP-2), and keratinocytes growth factor (KGF) (ELISA, n = 6) were assessed. Data were statistically analyzed by one-way ANOVA and Tukey tests (α = 0.05). RESULTS Higher cell adhesion rate was observed when keratinocytes and fibroblasts were seeded onto EGF-coated discs in comparison to uncoated discs. ZA treatment hindered the adhesion of both cell lines on the Ti discs as well as reduced the viability and synthesis of VEGF, KGF and MMP-2 by cells (p < 0.05). SA treatment did not affect cell viability, but interfered negatively on the adhesion and synthesis of EGF and KGF by the cells (p < 0.05). EGF-coated surface increased cell viability and synthesis of growth factors as well as downregulated the synthesis of MMP-2 in comparison to control (p < 0.05). CONCLUSION EGF applied on Ti surface improves the biological responses of oral mucosa cells exposed to SA and ZA. CLINICAL RELEVANCE EGF-coating on titanium may be a suitable strategy to improve oral mucosa cellular events related to biological sealing, especially for patients under bisphosphonate therapy.
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Affiliation(s)
- Taisa Nogueira Pansani
- Department of Dental Materials and Prosthodontics, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Laís Medeiros Cardoso
- Department of Dental Materials and Prosthodontics, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | | | | | - Carlos Alberto de Souza Costa
- Department of Physiology and Pathology, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, SP, Brazil
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Feliciano RDS, Atum ALB, Ruiz ÉGDS, Serra AJ, Antônio EL, Manchini MT, Silva JMA, Tucci PJF, Nathanson L, Morris M, Chavantes MC, Silva Júnior JA. Photobiomodulation Therapy on Myocardial Infarction in Rats: Transcriptional and Posttranscriptional Implications to Cardiac Remodeling. Lasers Surg Med 2021; 53:1247-1257. [PMID: 33846991 DOI: 10.1002/lsm.23407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 03/15/2021] [Accepted: 03/22/2021] [Indexed: 01/29/2023]
Abstract
BACKGROUND AND OBJECTIVES Induction of myocardial infarction (MI) in rats by occlusion of the left anterior descending coronary artery is an experimental model used in research to elucidate functional, structural, and molecular modifications associated with ischemic heart disease. Photobiomodulation therapy (PBMT) has become a therapeutic alternative by modulating various biological processes eliciting several effects, including anti-inflammatory and pro-proliferative actions. The main objective of this work was to evaluate the effect of PBMT in the modulation of transcriptional and post-transcriptional changes that occurred in myocardium signal transduction pathways after MI. STUDY DESIGN/MATERIALS AND METHODS Continuous wave (CW) non-thermal laser parameters were: 660 nm wavelength, power 15 mW, with a total energy of 0.9 J, fluence of 1.15 J/cm2 , spot size of 0.785 cm2 , and time of 60 seconds. Using in silico analysis, we selected and then, quantified the expression of messenger RNA (mRNA) of 47 genes of 9 signaling pathways associated with MI (angiogenesis, cell survival, hypertrophy, oxidative stress, apoptosis, extracellular matrix, calcium kinetics, cell metabolism, and inflammation). Messenger RNA expression quantification was performed in myocardial samples by polymerase chain reaction real-time array using TaqMan customized plates. RESULTS Our results evidenced that MI modified mRNA expression of several well-known biomarkers related to detrimental cardiac activity in almost all signaling pathways analyzed. However, PBMT reverted most of these transcriptional changes. More expressively, PBMT provoked a robust decrease in mRNA expression of molecules that participate in post-MI inflammation and ECM composition, such as IL-6, TNF receptor, TGFb1, and collagen I and III. Global microRNA (miRNA) expression analysis revealed that PBMT decreased miR-221, miR-34c, and miR-93 expressions post-MI, which are related to deleterious effects in cardiac remodeling. CONCLUSION Thus, the identification of transcriptional and post-transcriptional changes induced by PBMT may be used to interfere in the molecular dynamics of cardiac remodeling post-MI.
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Affiliation(s)
| | | | | | - Andrey Jorge Serra
- Universidade Federal de São Paulo, Rua Pedro de Toledo 709, Vila Clementino, São Paulo, SP, 04039-001, Brazil
| | - Ednei Luiz Antônio
- Universidade Federal de São Paulo, Rua Pedro de Toledo 709, Vila Clementino, São Paulo, SP, 04039-001, Brazil
| | | | | | - Paulo José Ferreira Tucci
- Universidade Federal de São Paulo, Rua Pedro de Toledo 709, Vila Clementino, São Paulo, SP, 04039-001, Brazil
| | - Lubov Nathanson
- Nova Southeastern University, 3301 College Avenue, Fort Lauderdale, Florida, 33314
| | - Mariana Morris
- Nova Southeastern University, 3301 College Avenue, Fort Lauderdale, Florida, 33314
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Cios A, Ciepielak M, Szymański Ł, Lewicka A, Cierniak S, Stankiewicz W, Mendrycka M, Lewicki S. Effect of Different Wavelengths of Laser Irradiation on the Skin Cells. Int J Mol Sci 2021; 22:ijms22052437. [PMID: 33670977 PMCID: PMC7957604 DOI: 10.3390/ijms22052437] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/19/2021] [Accepted: 02/25/2021] [Indexed: 12/22/2022] Open
Abstract
The invention of systems enabling the emission of waves of a certain length and intensity has revolutionized many areas of life, including medicine. Currently, the use of devices emitting laser light is not only an indispensable but also a necessary element of many diagnostic procedures. It also contributed to the development of new techniques for the treatment of diseases that are difficult to heal. The use of lasers in industry and medicine may be associated with a higher incidence of excessive radiation exposure, which can lead to injury to the body. The most exposed to laser irradiation is the skin tissue. The low dose laser irradiation is currently used for the treatment of various skin diseases. Therefore appropriate knowledge of the effects of lasers irradiation on the dermal cells’ metabolism is necessary. Here we present current knowledge on the clinical and molecular effects of irradiation of different wavelengths of light (ultraviolet (UV), blue, green, red, and infrared (IR) on the dermal cells.
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Affiliation(s)
- Aleksandra Cios
- Department of Microwave Safety, Military Institute of Hygiene and Epidemiology, 04-141 Warsaw, Poland; (A.C.); (M.C.); (W.S.)
| | - Martyna Ciepielak
- Department of Microwave Safety, Military Institute of Hygiene and Epidemiology, 04-141 Warsaw, Poland; (A.C.); (M.C.); (W.S.)
| | - Łukasz Szymański
- Department of Molecular Biology, Institute of Genetics and Animal Biotechnology, Polish Academy of Science, Postępu 36A, 05-552 Magdalenka, Poland
- Correspondence:
| | - Aneta Lewicka
- Laboratory of Food and Nutrition Hygiene, Military Institute of Hygiene and Epidemiology, Kozielska 4, 01-163 Warsaw, Poland;
| | - Szczepan Cierniak
- Department of Patomorphology, Military Institute of Medicine, Szaserów 128, 04-141 Warsaw, Poland;
| | - Wanda Stankiewicz
- Department of Microwave Safety, Military Institute of Hygiene and Epidemiology, 04-141 Warsaw, Poland; (A.C.); (M.C.); (W.S.)
| | - Mariola Mendrycka
- Faculty of Medical Sciences and Health Sciences, Kazimierz Pulaski University of Technology and Humanities, 26-600 Radom, Poland;
| | - Sławomir Lewicki
- Department of Regenerative Medicine and Cell Biology, Military Institute of Hygiene and Epidemiology, 04-141 Warsaw, Poland;
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Malthiery E, Chouaib B, Hernandez-Lopez AM, Martin M, Gergely C, Torres JH, Cuisinier FJ, Collart-Dutilleul PY. Effects of green light photobiomodulation on Dental Pulp Stem Cells: enhanced proliferation and improved wound healing by cytoskeleton reorganization and cell softening. Lasers Med Sci 2020; 36:437-445. [PMID: 32621128 DOI: 10.1007/s10103-020-03092-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 06/28/2020] [Indexed: 02/08/2023]
Abstract
Photobiomodulation (PBM) has been shown to improve cell proliferation and cell migration. Many cell types have been investigated, with most studies using deep penetrating red light irradiation. Considering the interest of surface biostimulation of oral mesenchymal cells after surgical wound, the present study aimed to assess green light irradiation effects on Dental Pulp Stem Cells' (DPSC) proliferation and migration. To understand the mechanisms underlying these effects, we investigated cytoskeleton organization and subsequent cell shape and stiffness. A 532-nm wavelength Nd:YAG laser (30 mW) was applied between 30 and 600 s on DPSC in vitro. Cell proliferation was analyzed at 24, 48, and 72 h after irradiation, by cell counting and enzymatic activity quantification (paranitrophenylphosphate phosphatase (pNPP) test). A wound healing assay was used to study cell migration after irradiation. Effects of PBM on cytoskeleton organization and cell shape were assessed by actin filaments staining. Elasticity changes after irradiation were quantified in terms of Young's modulus measured using Atomic Force Microscopy (AFM) force spectroscopy. Green light significantly improved DPSC proliferation with a maximal effect obtained after 300-s irradiation (energy fluence 5 J/cm2). This irradiation had a significant impact on cell migration, improving wound healing after 24 h. These results were concomitant with a decrease of cells' Young's modulus after irradiation. This cell softening was explained by actin cytoskeleton reorganization, with diminution of cell circularity and more abundant pseudopodia. This study highlights the interest of green laser PMB for the proliferation and migration of mesenchymal stem cells, with encouraging results for clinical application, especially for surgical wound healing procedures.
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Affiliation(s)
- Eve Malthiery
- LBN, University Montpellier, 545 Av Pr JL Viala, 34193 CEDEX 4, Montpellier, France
| | - Batoul Chouaib
- LBN, University Montpellier, 545 Av Pr JL Viala, 34193 CEDEX 4, Montpellier, France
| | - Ana María Hernandez-Lopez
- LBN, University Montpellier, 545 Av Pr JL Viala, 34193 CEDEX 4, Montpellier, France.,Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| | - Marta Martin
- L2C, CNRS, University Montpellier, Montpellier, France
| | | | - Jacques-Henri Torres
- LBN, University Montpellier, 545 Av Pr JL Viala, 34193 CEDEX 4, Montpellier, France
| | - Frédéric J Cuisinier
- LBN, University Montpellier, 545 Av Pr JL Viala, 34193 CEDEX 4, Montpellier, France
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10
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Cytotoxicity of acrylic resin-based materials used to fabricate interim crowns. J Prosthet Dent 2020; 124:122.e1-122.e9. [PMID: 32220399 DOI: 10.1016/j.prosdent.2020.01.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 01/15/2020] [Accepted: 01/15/2020] [Indexed: 01/04/2023]
Abstract
STATEMENT OF PROBLEM If the components in the acrylic resins used to fabricate interim crows are cytotoxic, they can interfere with the integrity of the adjacent periodontal tissue and the dentin-pulp complex. PURPOSE The purpose of this in vitro study was to assess the cytotoxicity of resin-based materials used to prepare interim crowns. MATERIAL AND METHODS The following materials were used in this study: CAR, conventional acrylic resin powder and liquid; BR, bis-acrylic resin; and PAR, pressed acrylic resin of the CAD-CAM type. Glass disks were used as the control (Co). Oral epithelial cells (NOK) were seeded on glass disks and standardized disks prepared with the resins under study. After incubation for 24 hours, the cells were analyzed for viability (Alamar Blue and Live or Dead), adhesion, and morphology (SEM and fluorescence), as well as epidermal growth factor synthesis (EGF-ELISA). The surface roughness (Ra) of test specimens was evaluated under a confocal microscope. The data were submitted to ANOVA and the Tukey HSD statistical tests (α=.05). RESULTS The highest Ra value was observed in BR in comparison with CAR, PAR, and Co (P<.05). The highest viability, adhesion, and EGF synthesis values were determined for the cells in contact with PAR (P<.001). CONCLUSIONS The computer-aided design and computer-aided manufacturing (CAD-CAM)-type resin favored adhesion, metabolism, and epithelial cell proliferation, and it was therefore considered cytocompatible.
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11
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de Castro JR, da Silva Pereira F, Chen L, Arana-Chavez VE, Ballester RY, DiPietro LA, Simões A. Improvement of full-thickness rat skin wounds by photobiomodulation therapy (PBMT): A dosimetric study. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2020; 206:111850. [PMID: 32203726 DOI: 10.1016/j.jphotobiol.2020.111850] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 02/06/2020] [Accepted: 03/04/2020] [Indexed: 11/19/2022]
Abstract
Basic dosimetric studies are necessary to support the use of photobiomodulation therapy (PBMT), since the great variety of laser parameters that are reported in the literature have created an obstacle to identifying reproducible results. Thus, the present study evaluates the process of tissue repair after the photobiomodulation therapy, taking into consideration the dose, frequency and the mode of energy delivery used. For this, 6 mm diameter wounds were created on dorsal skin of Wistar rats, and the animals were divided in control and irradiated groups, where L1 and L4 (irradiated with 1 point of 10 J/cm2), L2 and L5 (5 points of 10 J/cm2), L3 and L6 (1 point of 50 J/cm2), respectively for one or multiple days of irradiations. A diode laser, λ 660 nm, 40 mW of power and 0.028 cm2 of spot area was used. Our data showed that the group receiving multiple treatments over the first week post wounding, applied at 10 J/cm2 at each of 5 points on and around the wound (group L5) presented the best improvement of wound closure, higher cytokeratin 10, lower macrophage infiltration, and greater tissue resistance to rupture. We conclude that PBMT improves the skin wound healing process, and the outcomes were directly related to the chosen laser parameters and irradiation mode.
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Affiliation(s)
- Juliana Rodrigues de Castro
- Laboratory of Oral Biology, Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, 05508-000, Brazil
| | - Filipi da Silva Pereira
- Laboratory of Oral Biology, Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, 05508-000, Brazil
| | - Lin Chen
- Center for Wound Healing & Tissue Regeneration, Department of Periodontics, College of Dentistry, University of Illinois at Chicago, USA
| | - Victor Elias Arana-Chavez
- Laboratory of Oral Biology, Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, 05508-000, Brazil
| | - Rafael Yagüe Ballester
- Laboratory of Oral Biology, Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, 05508-000, Brazil
| | - Luisa A DiPietro
- Center for Wound Healing & Tissue Regeneration, Department of Periodontics, College of Dentistry, University of Illinois at Chicago, USA
| | - Alyne Simões
- Laboratory of Oral Biology, Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, 05508-000, Brazil.
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Liao YH, Su YH, Shih YT, Chen WS, Jee SH, Sun CK. In vivo third-harmonic generation microscopy study on vitiligo patients. JOURNAL OF BIOMEDICAL OPTICS 2019; 25:1-13. [PMID: 31777224 PMCID: PMC7008507 DOI: 10.1117/1.jbo.25.1.014504] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 11/11/2019] [Indexed: 05/25/2023]
Abstract
Melanin is known to provide strong third-harmonic generation (THG) contrast in human skin. With a high concentration in basal cell cytoplasm, THG contrast provided by melanin overshadows other THG sources in human skin studies. For better understanding of the THG signals in keratinocytes without the influence of melanin, an in vivo THG microscopy (THGM) study was first conducted on vitiliginous skin. As a result, the THG-brightness ratio between the melanin-lacking cytoplasm of basal cells and collagen fibers is about 1.106 at the dermal-epidermal junctions of vitiliginous skin, indicating high sensitivity of THGM for the presence of melanin. We further applied the in vivo THGM to assist evaluating the therapeutic outcome from the histopathological point of view for those showed no improvement under narrowband ultraviolet B therapy based on the seven-point Physician Global Assessment score. Our clinical study indicates the high potential of THGM to assist the histopathological assessment of the therapeutic efficacy of vitiligo treatments.
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Affiliation(s)
- Yi-Hua Liao
- National Taiwan University Hospital, National Taiwan University College of Medicine, Department of Dermatology, Taipei, Taiwan
| | - Yu-Hsiang Su
- National Taiwan University, Graduate Institute of Photonics and Optoelectronics, Department of Electrical Engineering, Taipei, Taiwan
| | - Yuan-Ta Shih
- National Taiwan University, Graduate Institute of Photonics and Optoelectronics, Department of Electrical Engineering, Taipei, Taiwan
| | - Wen-Shiang Chen
- National Taiwan University Hospital, National Taiwan University College of Medicine, Department of Physical Medicine and Rehabilitation, Taipei, Taiwan
| | - Shiou-Hwa Jee
- National Taiwan University Hospital, National Taiwan University College of Medicine, Department of Dermatology, Taipei, Taiwan
- Cathay General Hospital, Department of Dermatology, Taipei, Taiwan
| | - Chi-Kuang Sun
- National Taiwan University, Graduate Institute of Photonics and Optoelectronics, Department of Electrical Engineering, Taipei, Taiwan
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13
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Pansani TN, Basso FG, Souza IDR, Hebling J, de Souza Costa CA. Characterization of titanium surface coated with epidermal growth factor and its effect on human gingival fibroblasts. Arch Oral Biol 2019; 102:48-54. [PMID: 30965181 DOI: 10.1016/j.archoralbio.2019.03.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 03/12/2019] [Accepted: 03/28/2019] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Different strategies, such as modifications on the implant abutments surface have been proposed to accelerate and improve the formation of the biological seal (BS). The aim of this study was to characterize a titanium (Ti) surface impregnated with epidermal growth factor (EGF) and to assess its influence on the metabolism and adhesion of oral mucosal cells. DESIGN Ti discs were coated with EGF (100 nM) conjugated with a fluorophore and analyzed by fluorescence microscopy. The surface roughness analysis (Ra) of the EGF-coated Ti was performed by confocal microscopy. The EGF released in the wet environment was determined at 0, 24, 48 and 72 h by fluorimetric quantification. For assessment of the biological effects of EGF-coated Ti, gingival fibroblasts were seeded (5 × 104 cells) onto the substrate coated or not with this growth factor. After 24 h, cell adhesion and viability were evaluated by ANOVA and Tukey tests, α = .05. RESULTS Immediate release of EGF as well as its incorporation by fibroblasts within 1 h after cells were seeded was observed. EGF-coated Ti discs presented significantly enhance surface roughness. Increased cell viability was observed on the EGF-coated discs. CONCLUSION EGF applied to Ti discs stimulated the adhesion and metabolism of gingival fibroblasts and could be considered as an interesting alternative for improving the BS.
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Affiliation(s)
- Taisa Nogueira Pansani
- Department of Dental Materials and Prosthodontics, UNESP - Univ. Estadual Paulista, Araraquara School of Dentistry, Araraquara, Brazil
| | | | - Isabela Dos Reis Souza
- Department of Dental Materials and Prosthodontics, UNESP - Univ. Estadual Paulista, Araraquara School of Dentistry, Araraquara, Brazil
| | - Josimeri Hebling
- Department of Orthodontics and Pediatric Dentistry, UNESP - Univ. Estadual Paulista, Araraquara School of Dentistry, Araraquara, Brazil
| | - Carlos Alberto de Souza Costa
- Department of Physiology and Pathology, UNESP - Univ. Estadual Paulista, Araraquara School of Dentistry, Araraquara, Brazil.
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Moskvin S, Pritiko D, Sergeenko E, Lukash E, Gusev L. A brief literature review and own clinical experience in prophylaxis of oral mucositis in children using low level laser therapy. Biomedicine (Taipei) 2019; 9:1. [PMID: 30794148 PMCID: PMC6385611 DOI: 10.1051/bmdcn/2019090101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 12/31/2018] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE The article describes the experience of clinical application of low level laser therapy in pediatric oncology for the prevention and treatment of chemotherapy complications such as oral mucositis. BACKGROUND For this purpose, for the first time in the world non-invasive laser blood illumination is used on the sinocarotid zone (on the projection of the common carotid artery symmetrically) and popliteal fossa in order to stimulate the phagocytic activity of leukocytes. METHODS 25 children with different oncological diseases were given non-invasive laser blood illumination treatment (904 nm, pulse mode, 100 ns, 50-150 Hz, 5-7 W, 4 cm2, 1-2 minutes daily per each procedure) 1-3 days before the beginning of chemotherapy. For the objectification of the results of treatment, the phagocytic activity of leukocytes was evaluated. RESULTS None of the children who underwent low level laser therapy course had any complications and no cases of oral mucositis developed. CONCLUSIONS Clinical experience has shown high efficacy and safety of low level laser therapy aimed at preventing the development of complications of chemotherapy, primarily oral mucositis, and stimulating the phagocytic activity of leukocytes.
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Affiliation(s)
- Sergey Moskvin
- O.K. Skobelkin State Scientific Center of Laser Medicine under the Federal Medical Biological Agency, Moscow, 121165, Russia
| | - Denis Pritiko
- V.F. Voino-Yasenetsky Scientific and Practical Center of Specialized Medical Care for Children of the Department of Health of Moscow, 119620, Russia
| | - Elena Sergeenko
- V.F. Voino-Yasenetsky Scientific and Practical Center of Specialized Medical Care for Children of the Department of Health of Moscow, 119620, Russia
| | - Elena Lukash
- V.F. Voino-Yasenetsky Scientific and Practical Center of Specialized Medical Care for Children of the Department of Health of Moscow, 119620, Russia
| | - Leonid Gusev
- V.F. Voino-Yasenetsky Scientific and Practical Center of Specialized Medical Care for Children of the Department of Health of Moscow, 119620, Russia
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Davoudi A, Ebadian B, Nosouhian S. Role of laser or photodynamic therapy in treatment of denture stomatitis: A systematic review. J Prosthet Dent 2018; 120:498-505. [DOI: 10.1016/j.prosdent.2018.01.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/05/2018] [Accepted: 01/05/2018] [Indexed: 12/30/2022]
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16
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Bamps M, Dok R, Nuyts S. Low-Level Laser Therapy Stimulates Proliferation in Head and Neck Squamous Cell Carcinoma Cells. Front Oncol 2018; 8:343. [PMID: 30211121 PMCID: PMC6122283 DOI: 10.3389/fonc.2018.00343] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 08/06/2018] [Indexed: 12/15/2022] Open
Abstract
Objectives: Low-level laser therapy (LLLT) is a promising non-invasive treatment option for oropharyngeal mucositis, which is a common side effect of many oncological treatments. LLLT is known for its wound healing properties due to the stimulation of cellular processes, such as proliferation, migration and differentiation. Controversy exists on the possible stimulatory effect of LLLT on head and neck cancer (HNSCC) cells in patients treated with radiotherapy. The aim of this study was to evaluate the biostimulatory effect together with the underlying mechanisms of LLLT on HNSCC cancer cells and normal epithelial cells. Materials and methods: HNSCC cell lines (SCC154, SQD9, and SCC61) and human tonsil epithelial cells were exposed to a Gallium-Aluminum-Arsenide diode laser (830 nm, 150 mW) with energy densities of 0, 1, and 2 J/cm2. The proliferation potential of the cells was assessed by Sulforhodamine B assay, immunoblotting (mitogenic pathways), immunocytochemistry (Ki67), and flow cytometry (PI cell cycle staining). Results: Cell proliferation was increased in HNSCC cell lines after laser irradiation with 1 J/cm2, whereas no significant increase was seen after laser irradiation with 2 J/cm2. In contrast, no effect on cell proliferation was seen in the human tonsil epithelial cells after laser irradiation with any of the energy densities. The increased proliferation was associated with elevated levels of pAKT, pERK, and Ki67 protein expression and cell cycle progression. Conclusion: Our results show that LLLT increases cell proliferation in a dose-dependent manner in HNSCC cells but not in normal epithelial tonsil cells. These results suggest that LLLT has to be used with caution when treating oropharyngeal mucositis in HNSCC patients since tumor cells present in the LLLT irradiation field could be triggered by LLLT.
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Affiliation(s)
- Marieke Bamps
- Laboratory of Experimental Radiotherapy, Department of Oncology, KU Leuven Leuven, Belgium
| | - Rüveyda Dok
- Laboratory of Experimental Radiotherapy, Department of Oncology, KU Leuven Leuven, Belgium
| | - Sandra Nuyts
- Laboratory of Experimental Radiotherapy, Department of Oncology, KU Leuven Leuven, Belgium.,Department of Radiation Oncology, Leuven Cancer Institute, University Hospitals Leuven, Leuven, Belgium
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Frangež I, Nizič-Kos T, Frangež HB. Phototherapy with LED Shows Promising Results in Healing Chronic Wounds in Diabetes Mellitus Patients: A Prospective Randomized Double-Blind Study. Photomed Laser Surg 2018; 36:377-382. [DOI: 10.1089/pho.2017.4382] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Igor Frangež
- Department of Surgical Infections, University Medical Center Ljubljana, Ljubljana, Slovenia
| | - Tea Nizič-Kos
- Department of Surgical Infections, University Medical Center Ljubljana, Ljubljana, Slovenia
- Division of Surgery, Institute of Oncology Ljubljana, Ljubljana, Slovenia
| | - Helena Ban Frangež
- Department of Obstetrics and Gynecology, Reproductive Unit, University Medical Center Ljubljana, Ljubljana, Slovenia
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Paiva ADCM, da Fonseca ADS. Could adverse effects and complications of selective laser trabeculoplasty be decreased by low-power laser therapy? Int Ophthalmol 2017; 39:243-257. [PMID: 29189945 DOI: 10.1007/s10792-017-0775-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 11/24/2017] [Indexed: 12/19/2022]
Abstract
Selective laser trabeculoplasty (SLT) has been used for treatment of primary open-angle glaucoma, ocular hypertension, pigmenter and pseudoexfoliative glaucoma being considered a low-risk procedure. Therefore, transitory and permanent adverse effects have been reported, including corneal changes, subclinical edema, and reduction in endothelial cells and in central corneal thickness. Despite rarer, serious corneal complications after SLT can be permanent and lead to visual impairment, central corneal haze, opacity and narrowing. The mechanism involves increase of vasoactive and chemotactic cytokines causing inflammatory infiltrate, destruction of stromal collagen by fibroblasts and increase of matrix metalloproteinases type 2, which impair reepithelization. SLT also increases free radical production and reduces antioxidant enzymes, resulting in endothelium damages. Low-power laser therapy (LPLT) has been used in regenerative medicine based on its biostimulatory and anti-inflammatory effects. Biostimulation occurs through the interaction of laser photons with cytochrome C oxidase enzyme, which activates intracellular biochemical cascades causing synthesis of a number of molecules related to anti-inflammatory, regenerative effects, pain relief and reduction in edema. It has been showed that LPLT reduces gene expression related to pro-inflammatory cytokines and matrix metalloproteinases, and it increases expression of growth factors related to its proliferative and healing actions. Although radiations emitted by low-power lasers are considered safe and able to induce therapeutic effects, researches based on experimental models for glaucoma could bring important data if LPLT could be an alternative approach to improve acceptation for patients undergoing SLT.
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Affiliation(s)
- Alexandre de Carvalho Mendes Paiva
- Departamento de Ciências Fisiológicas, Instituto Biomédico, Universidade Federal do Estado do Rio de Janeiro, Rua Frei Caneca, 94, Centro, Rio de Janeiro, 20211040, Brazil
| | - Adenilson de Souza da Fonseca
- Departamento de Ciências Fisiológicas, Instituto Biomédico, Universidade Federal do Estado do Rio de Janeiro, Rua Frei Caneca, 94, Centro, Rio de Janeiro, 20211040, Brazil. .,Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Boulevard Vinte e Oito de Setembro, 87 fundos, 4º andar, Vila Isabel, Rio de Janeiro, 20551030, Brazil. .,Centro de Ciências da Saúde, Centro Universitário Serra dos Órgãos, Avenida Alberto Torres, 111, Teresópolis, Rio de Janeiro, 25964004, Brazil.
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