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Bueno CRDS, Tonin MCC, Buchaim DV, Barraviera B, Ferreira Junior RS, Santos PSDS, Reis CHB, Pastori CM, Pereira EDSBM, Nogueira DMB, Cini MA, Rosa Junior GM, Buchaim RL. Morphofunctional Improvement of the Facial Nerve and Muscles with Repair Using Heterologous Fibrin Biopolymer and Photobiomodulation. Pharmaceuticals (Basel) 2023; 16:ph16050653. [PMID: 37242436 DOI: 10.3390/ph16050653] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/21/2023] [Accepted: 04/23/2023] [Indexed: 05/28/2023] Open
Abstract
Peripheral nerve injuries impair the patient's functional capacity, including those occurring in the facial nerve, which require effective medical treatment. Thus, we investigated the use of heterologous fibrin biopolymer (HFB) in the repair of the buccal branch of the facial nerve (BBFN) associated with photobiomodulation (PBM), using a low-level laser (LLLT), analyzing the effects on axons, muscles facials, and functional recovery. This experimental study used twenty-one rats randomly divided into three groups of seven animals, using the BBFN bilaterally (the left nerve was used for LLLT): Control group-normal and laser (CGn and CGl); Denervated group-normal and laser (DGn and DGl); Experimental Repair Group-normal and laser (ERGn and ERGl). The photobiomodulation protocol began in the immediate postoperative period and continued for 5 weeks with a weekly application. After 6 weeks of the experiment, the BBFN and the perioral muscles were collected. A significant difference (p < 0.05) was observed in nerve fiber diameter (7.10 ± 0.25 µm and 8.00 ± 0.36 µm, respectively) and axon diameter (3.31 ± 0.19 µm and 4.07 ± 0.27 µm, respectively) between ERGn and ERGl. In the area of muscle fibers, ERGl was similar to GC. In the functional analysis, the ERGn and the ERGI (4.38 ± 0.10) and the ERGI (4.56 ± 0.11) showed parameters of normality. We show that HFB and PBM had positive effects on the morphological and functional stimulation of the buccal branch of the facial nerve, being an alternative and favorable for the regeneration of severe injuries.
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Affiliation(s)
- Cleuber Rodrigo de Souza Bueno
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
- Dentistry School, University Center of Adamantina (UNIFAI), Adamantina 17800-000, Brazil
- Medical School, University Center of Adamantina (UNIFAI), Adamantina 17800-000, Brazil
| | - Maria Clara Cassola Tonin
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
| | - Daniela Vieira Buchaim
- Medical School, University Center of Adamantina (UNIFAI), Adamantina 17800-000, Brazil
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marília 17525-902, Brazil
| | - Benedito Barraviera
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Universidade Estadual Paulista, UNESP), Botucatu 18610-307, Brazil
- Graduate Program in Tropical Diseases, Botucatu Medical School (FMB), São Paulo State University (UNESP-Universidade Estadual Paulista), Botucatu 18618-687, Brazil
| | - Rui Seabra Ferreira Junior
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Universidade Estadual Paulista, UNESP), Botucatu 18610-307, Brazil
- Graduate Program in Tropical Diseases, Botucatu Medical School (FMB), São Paulo State University (UNESP-Universidade Estadual Paulista), Botucatu 18618-687, Brazil
| | - Paulo Sérgio da Silva Santos
- Department of Surgery, Stomatology, Pathology and Radiology, Bauru School of Dentistry, University of São Paulo, Bauru 17012-901, Brazil
| | - Carlos Henrique Bertoni Reis
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
- UNIMAR Beneficent Hospital (HBU), University of Marilia (UNIMAR), Marília 17525-160, Brazil
| | | | - Eliana de Souza Bastos Mazuqueli Pereira
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marília 17525-902, Brazil
| | - Dayane Maria Braz Nogueira
- Department of Prosthodontics and Periodontics, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, Brazil
| | - Marcelo Augusto Cini
- Medical School, University of West Paulista (UNOESTE), Guarujá 11441-225, 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
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Buchaim DV, Andreo JC, Pomini KT, Barraviera B, Ferreira Júnior RS, Duarte MAH, Alcalde MP, Reis CHB, Teixeira DDB, Bueno CRDS, Detregiachi CRP, Araujo AC, Buchaim RL. A biocomplex to repair experimental critical size defects associated with photobiomodulation therapy. J Venom Anim Toxins Incl Trop Dis 2022; 28:e20210056. [PMID: 35261617 PMCID: PMC8863337 DOI: 10.1590/1678-9199-jvatitd-2021-0056] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 07/16/2021] [Indexed: 02/14/2023] Open
Affiliation(s)
- Daniela Vieira Buchaim
- University of Marilia, Brazil; University Center of Adamantina, Brazil; São Paulo State University, Brazil
| | | | | | - Benedito Barraviera
- São Paulo State University, Brazil; São Paulo State University, Brazil; São Paulo State University, Brazil
| | - Rui Seabra Ferreira Júnior
- São Paulo State University, Brazil; São Paulo State University, Brazil; São Paulo State University, Brazil
| | | | | | | | | | | | | | | | - Rogério Leone Buchaim
- São Paulo State University, Brazil; University of São Paulo, Brazil; University of São Paulo, Brazil
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de Matos BTL, Buchaim DV, Pomini KT, Barbalho SM, Guiguer EL, Reis CHB, Bueno CRDS, da Cunha MR, Pereira EDSBM, Buchaim RL. Photobiomodulation Therapy as a Possible New Approach in COVID-19: A Systematic Review. Life (Basel) 2021; 11:580. [PMID: 34207199 PMCID: PMC8233727 DOI: 10.3390/life11060580] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/10/2021] [Accepted: 06/16/2021] [Indexed: 12/18/2022] Open
Abstract
COVID-19 is a viral disease characterized as a pandemic by the World Health Organization in March 2020. Since then, researchers from all over the world have been looking for ways to fight this disease. Many cases of complications arise from insufficient immune responses due to low immunity, with intense release of pro-inflammatory cytokines that can damage the structure of organs such as the lung. Thus, the hypothesis arises that photobiomodulation therapy (PBMT) with the use of a low-level laser (LLLT) may be an ally approach to patients with COVID-19 since it is effective for increasing immunity, helping tissue repair, and reducing pro-inflammatory cytokines. This systematic review was performed with the use of PubMed/MEDLINE, Web of Science, Scopus and Google Scholar databases with the following keywords: "low-level laser therapy OR photobiomodulation therapy AND COVID-19". The inclusion criteria were complete articles published from January 2020 to January 2021 in English. The exclusion criteria were other languages, editorials, reviews, brief communications, letters to the editor, comments, conference abstracts, and articles that did not provide the full text. The bibliographic search found 18 articles in the Pubmed/MEDLINE database, 118 articles on the Web of Science, 23 articles on Scopus, and 853 articles on Google Scholar. Ten articles were included for qualitative synthesis, of which four commentary articles discussed the pathogenesis and the effect of PBMT in COVID-19. Two in vitro and lab experiments showed the effect of PBMT on prevention of thrombosis and positive results in wound healing during viral infection, using the intravascular irradiation (ILIB) associated with Phthalomethyl D. Two case reports showed PBMT improved the respiratory indexes, radiological findings, and inflammatory markers in severe COVID-19 patients. One case series reported the clinical improvement after PBMT on 14 acute COVID-19 patients, rehabilitation on 24 patients, and as a preventive treatment on 70 people. One clinical trial of 30 patients with severe COVID-19 who require invasive mechanical ventilation, showed PBMT-static magnetic field was not statistically different from placebo for the length of stay in the Intensive Care Unit, but improved diaphragm muscle function and ventilation and decreased the inflammatory markers. This review suggests that PBMT may have a positive role in treatment of COVID-19. Still, the necessity for more clinical trials remains in this field and there is not sufficient research evidence regarding the effects of PBMT and COVID-19 disease, and there is a large gap.
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Affiliation(s)
- Brenda Thaynne Lima de Matos
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, SP, Brazil; (B.T.L.d.M.); (K.T.P.); (C.H.B.R.); (C.R.d.S.B.)
| | - Daniela Vieira Buchaim
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marília 17525-902, SP, Brazil; (D.V.B.); (S.M.B.); (E.L.G.); (E.d.S.B.M.P.)
- Department of Human Anatomy and Neuroanatomy, University Center of Adamantina (UniFAI), Medical School, Adamantina 17800-000, SP, Brazil
| | - Karina Torres Pomini
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, SP, Brazil; (B.T.L.d.M.); (K.T.P.); (C.H.B.R.); (C.R.d.S.B.)
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marília 17525-902, SP, Brazil; (D.V.B.); (S.M.B.); (E.L.G.); (E.d.S.B.M.P.)
| | - Sandra Maria Barbalho
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marília 17525-902, SP, Brazil; (D.V.B.); (S.M.B.); (E.L.G.); (E.d.S.B.M.P.)
- Department of Biochemistry and Nutrition, School of Food Technology of Marília, Marília 17506-000, SP, Brazil
| | - Elen Landgraf Guiguer
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marília 17525-902, SP, Brazil; (D.V.B.); (S.M.B.); (E.L.G.); (E.d.S.B.M.P.)
- Department of Biochemistry and Nutrition, School of Food Technology of Marília, Marília 17506-000, SP, Brazil
| | - Carlos Henrique Bertoni Reis
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, SP, Brazil; (B.T.L.d.M.); (K.T.P.); (C.H.B.R.); (C.R.d.S.B.)
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marília 17525-902, SP, Brazil; (D.V.B.); (S.M.B.); (E.L.G.); (E.d.S.B.M.P.)
| | - Cleuber Rodrigo de Souza Bueno
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, SP, Brazil; (B.T.L.d.M.); (K.T.P.); (C.H.B.R.); (C.R.d.S.B.)
| | | | - Eliana de Souza Bastos Mazuqueli Pereira
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Postgraduate Department, University of Marilia (UNIMAR), Marília 17525-902, SP, Brazil; (D.V.B.); (S.M.B.); (E.L.G.); (E.d.S.B.M.P.)
| | - Rogerio Leone Buchaim
- Department of Biological Sciences, Bauru School of Dentistry (FOB/USP), University of São Paulo, Bauru 17012-901, SP, Brazil; (B.T.L.d.M.); (K.T.P.); (C.H.B.R.); (C.R.d.S.B.)
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Kricheldorf F, Bueno CRDS, Amaral WDS, Junior JFS, Filho HN. Analysis of vertical marginal discrepancy in feldspathic porcelain crowns manufactured with different CAD/CAM systems: Closed and open. Eur J Dent 2019; 12:123-128. [PMID: 29657537 PMCID: PMC5883464 DOI: 10.4103/ejd.ejd_368_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Objective: The objective of this study is to compare the marginal adaptation of feldspathic porcelain crowns using two computer-aided design/computer-aided manufacturing systems, one of them is open and the other is closed. Materials and Methods: Twenty identical titanium abutments were divided into two groups: open system (OS), where ceramic crowns were created using varied equipment and software, and closed system (CS), where ceramic crowns were created using the CEREC system. Through optical microscopy analysis, we assess the marginal adaptation of the prosthetic interfaces. The data were subjected to the distribution of normality and variance. The t-test was used for the analysis of the comparison factor between the groups, and the one-way ANOVA was used to compare the variance of crown analysis regions within the group. A significance level of 5% was considered for the analyses. Results: There was a significant difference between the systems (P = 0.007), with the CS group having the higher mean (23.75 μm ± 3.05) of marginal discrepancy when compared to the open group (17.94 μm ± 4.77). Furthermore, there were no differences in marginal discrepancy between the different points between the groups (P ≥ 0.05). Conclusions: The studied groups presented results within the requirements set out in the literature. However, the OS used presented better results in marginal adaptation.
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Affiliation(s)
- Fabio Kricheldorf
- Department of Health Sciences, University of Sacred Heart (USC), Bauru, Brazil
| | | | | | | | - Hugo Nary Filho
- Department of Health Sciences, University of Sacred Heart (USC), Bauru, Brazil
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Bueno CRDS, Pereira M, Aparecido I, Buchaim RL, Andreo JC, Rodrigues ADC, Marco G. Comparative study between standard and inside-out vein graft techniques on sciatic nerve repair of rats. Muscular and functional analysis. Acta Cir Bras 2017; 32:287-296. [PMID: 28538803 DOI: 10.1590/s0102-865020170040000005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Accepted: 03/13/2017] [Indexed: 11/22/2022] Open
Abstract
Purpose: To compare the functional result of standart vein grafts and inside-out vein graft technique on sciatic nerve repair. Methods: We used 24 male Wistar rats divided into 4 groups: control group (CG), standard vein graft group (SVG), Inside-out vein graft group (IOVG) and denervated Group (DG). SVG, IOVG and DG underwent total section of the sciatic nerve, SVG and IOVG however underwent nerve repair surgery using a graft with normal jugular vein and inside-out jugular vein, respectively. Histological analysis of the soleus and Extensor Digitorum Longus (EDL), and Sciatic Functional Index were used to compare the results after 6 weeks. Results: Both grafts acted favorably in muscle recovery and improved functionality; They were similar in all parameters, however, in more points SVG achieved similar to the CG, in the other hand IOVG more times was similar to DG. Fact that makes the graft with normal vein the most viable option between the two options. Conclusion: Both types of grafts acted beneficially wherein the graft normal vein has proved to be the best option.
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Affiliation(s)
- Cleuber Rodrigo de Souza Bueno
- Graduate student, Department of Biological Sciences, Universidade do Sagrado Coração (USC), Bauru-SP, Brazil. Technical procedures; acquisition, analysis and interpretation of data; histopathological examinations; manuscript preparation
| | - Mizael Pereira
- MSc, Department of Biological Sciences (Anatomy), Faculdade de Odontologia de Bauru, Universidade de São Paulo (FOB-USP), Bauru-SP, Brazil. Analysis and interpretation of data, histopathological examinations, manuscript preparation and writing
| | - Idvaldo Aparecido
- MSc, Department of Biological Sciences (Anatomy), FOB-USP, Bauru-SP, Brazil. Acquisition of data, technical procedures
| | - Rogerio Leone Buchaim
- PhD, Associate Professor, Department of Biological Sciences (Anatomy), FOB-USP, Bauru-SP, Brazil. Scientific and intellectual content of the study, statitics analysis
| | - Jesus Carlos Andreo
- PhD, Full Professor, Department of Biological Sciences (Anatomy), FOB-USP, Bauru-SP, Brazil. Scientific and intellectual content of the study
| | - Antônio de Castro Rodrigues
- PhD, Associate Professor, Department of Biological Sciences (Anatomy), FOB-USP, Bauru-SP, Brazil. Conception, design, scientific and intellectual content of the study; final approval
| | - Geraldo Marco
- PhD, Associate Professor, Department of Biological Sciences, USC, Bauru-SP, Brazil. Conception and design of the study, critical revision, final approval
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Rosso MPDO, Rosa Júnior GM, Buchaim DV, German IJS, Pomini KT, de Souza RG, Pereira M, Favaretto Júnior IA, Bueno CRDS, Gonçalves JBDO, Ferreira Júnior RS, Barraviera B, Andreo JC, Buchaim RL. Stimulation of morphofunctional repair of the facial nerve with photobiomodulation, using the end-to-side technique or a new heterologous fibrin sealant. J Photochem Photobiol B 2017; 175:20-28. [PMID: 28846931 DOI: 10.1016/j.jphotobiol.2017.08.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 08/13/2017] [Accepted: 08/17/2017] [Indexed: 12/01/2022]
Abstract
This research evaluated the influence of Photobiomodulation Therapy (PBMT) on lesions of the facial nerve repaired with the end-to-side technique or coaptation with a new heterologous fibrin sealant. Thirty-two Wistar rats were separated into 5 groups: Control group (CG), where the buccal branch of the facial nerve was collected; Experimental Suture Group (ESG) and Experimental Fibrin Group (EFG), in which the buccal branch was end-to-side sutured to the zygomatic branch on the right side of the face or coaptated with fibrin sealant on the left side; Experimental Suture Laser Group (ESLG) and Experimental Fibrin Laser Group (EFLG), in which the same procedures were performed as the ESG and EFG, associated with PBMT (wavelength of 830nm, energy density 6.2J/cm2, power output 30mW, beam area of 0.116cm2, power density 0.26W/cm2, total energy per session 2.16J, cumulative dose of 34.56J). The laser was applied for 24s/site at 3 points on the skin's surface, for a total application time of 72s, performed immediately after surgery and 3 times a week for 5weeks. A statistically significant difference was observed in the fiber nerve area between the EFG and EFLG (57.49±3.13 and 62.52±3.56μm2, respectively). For the area of the axon, fiber diameter, axon diameter, myelin sheath area and myelin sheath thickness no statistically significant differences were found (p<0.05). The functional recovery of whisker movement occurred faster in the ESLG and EFLG, which were associated with PBMT, with results closer to the CG. Therefore, PBMT accelerated morphological and functional nerve repair in both techniques.
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Affiliation(s)
| | | | | | - Iris Jasmin Santos German
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | - Karina Torres Pomini
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | - Rafael Gomes de Souza
- Human Morphophysiology (Anatomy), University of Marilia (UNIMAR), Marilia, SP, Brazil
| | - Mizael Pereira
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | | | | | | | - Rui Seabra Ferreira Júnior
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ. Estadual Paulista, UNESP), Botucatu, SP, Brazil
| | - Benedito Barraviera
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (Univ. Estadual Paulista, UNESP), Botucatu, SP, Brazil
| | - Jesus Carlos Andreo
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | - Rogério Leone Buchaim
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil; Human Morphophysiology (Anatomy), University of Marilia (UNIMAR), Marilia, SP, Brazil
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Bueno CRDS, Pereira M, Favaretto IA, Bortoluci CHF, dos Santos TCP, Dias DV, Daré LR, Rosa GM. Electrical stimulation attenuates morphological alterations and prevents atrophy of the denervated cranial tibial muscle. Einstein (Sao Paulo) 2017; 15:71-76. [PMID: 28444093 PMCID: PMC5433311 DOI: 10.1590/s1679-45082017ao3808] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/05/2017] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE To investigate if electrical stimulation through Russian current is able to maintain morphology of the cranial tibial muscle of experimentally denervated rats. METHODS Thirty-six Wistar rats were divided into four groups: the Initial Control Group, Final Control Group, Experimental Denervated and Treated Group, Experimental Denervated Group. The electrostimulation was performed with a protocol of Russian current applied three times per week, for 45 days. At the end, the animals were euthanized and histological and morphometric analyses were performed. Data were submitted to statistical analysis with a significance level of p<0.05. RESULTS The Experimental Denervated Group and the Experimental Denervated and Treated Group had cross-sectional area of smaller fiber compared to the Final Control Group. However, there was significant difference between the Experimental Denervated Group and Experimental Denervated and Treated Group, showing that electrical stimulation minimized muscle atrophy. The Experimental Denervated and Treated Group and Initial Control Group showed similar results. CONCLUSION Electrical stimulation through Russian current acted favorably in maintaining morphology of the cranial tibial muscle that was experimentally denervated, minimizing muscle atrophy. OBJETIVO Investigar se a estimulação elétrica pela corrente russa é capaz de manter a morfologia do músculo tibial cranial de ratos desnervados experimentalmente. MÉTODOS Foram utilizados 36 ratos Wistar, distribuídos em quatro grupos: Grupo Controle Inicial, Grupo Controle Final, Grupo Experimental Desnervado Tratado, Grupo Experimental Desnervado. A eletroestimulação foi realizada com um protocolo de corrente russa aplicada três vezes por semanas, durante 45 dias. Ao final, os animais foram eutanasiados e, em seguida, foram realizadas as análises histológica e morfométrica. Os dados foram submetidos à análise estatística, com nível de significância de p<0,05. RESULTADOS Os Grupos Experimental Desnervado e o Grupo Experimental Desnervado Tratado apresentaram área de secção transversal da fibra menor quando comparados ao Grupo Controle Final. Entretanto, constatou-se diferença significativa entre o Grupo Experimental Desnervado e o Grupo Experimental Desnervado Tratado, mostrando que a estimulação elétrica minimizou atrofia muscular. Ainda, observou-se que o Grupo Experimental Desnervado Tratado apresentou resultados semelhantes ao Grupo Controle Inicial. CONCLUSÃO A estimulação elétrica por meio da corrente russa foi favorável na manutenção da morfologia do músculo tibial cranial desnervado experimentalmente, minimizando a atrofia muscular.
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Affiliation(s)
| | - Mizael Pereira
- Faculdade de Odontologia, Universidade de São Paulo, Bauru, SP, Brazil
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Buchaim DV, Rodrigues ADC, Buchaim RL, Barraviera B, Junior RSF, Junior GMR, Bueno CRDS, Roque DD, Dias DV, Dare LR, Andreo JC. The new heterologous fibrin sealant in combination with low-level laser therapy (LLLT) in the repair of the buccal branch of the facial nerve. Lasers Med Sci 2016; 31:965-72. [PMID: 27112578 DOI: 10.1007/s10103-016-1939-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 04/11/2016] [Indexed: 01/09/2023]
Abstract
This study aimed to evaluate the effects of low-level laser therapy (LLLT) in the repair of the buccal branch of the facial nerve with two surgical techniques: end-to-end epineural suture and coaptation with heterologous fibrin sealant. Forty-two male Wistar rats were randomly divided into five groups: control group (CG) in which the buccal branch of the facial nerve was collected without injury; (2) experimental group with suture (EGS) and experimental group with fibrin (EGF): The buccal branch of the facial nerve was transected on both sides of the face. End-to-end suture was performed on the right side and fibrin sealant on the left side; (3) Experimental group with suture and laser (EGSL) and experimental group with fibrin and laser (EGFL). All animals underwent the same surgical procedures in the EGS and EGF groups, in combination with the application of LLLT (wavelength of 830 nm, 30 mW optical power output of potency, and energy density of 6 J/cm(2)). The animals of the five groups were euthanized at 5 weeks post-surgery and 10 weeks post-surgery. Axonal sprouting was observed in the distal stump of the facial nerve in all experimental groups. The observed morphology was similar to the fibers of the control group, with a predominance of myelinated fibers. In the final period of the experiment, the EGSL presented the closest results to the CG, in all variables measured, except in the axon area. Both surgical techniques analyzed were effective in the treatment of peripheral nerve injuries, where the use of fibrin sealant allowed the manipulation of the nerve stumps without trauma. LLLT exhibited satisfactory results on facial nerve regeneration, being therefore a useful technique to stimulate axonal regeneration process.
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Affiliation(s)
- Daniela Vieira Buchaim
- Human Morphophysiology (Anatomy), Faculty of Medicine, University of Marilia (UNIMAR), Marilia, SP, Brazil.
| | - Antonio de Castro Rodrigues
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Rogerio Leone Buchaim
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
| | - Benedito Barraviera
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (UNESP-Univ Estadual Paulista), Botucatu, São Paulo State, Brazil
| | - Rui Seabra Ferreira Junior
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (UNESP-Univ Estadual Paulista), Botucatu, São Paulo State, Brazil
| | | | | | - Domingos Donizeti Roque
- Human Morphophysiology (Anatomy), Faculty of Medicine, University of Marilia (UNIMAR), Marilia, SP, Brazil
| | | | | | - Jesus Carlos Andreo
- Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil
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Rosa Junior GM, Magalhães RMG, Rosa VC, Bueno CRDS, Simionato LH, Bortoluci CHF. Efeito da associação da laserterapia com a natação no reparo morfológico do nervo isquiático e na recuperação funcional de ratos submetidos à axonotmese. Fisioter Pesqui 2016. [DOI: 10.1590/1809-2950/13929623012016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
RESUMO As lesões de nervos periféricos ocorrem frequentemente e, de modo geral, causam perda funcional impactando de forma negativa na vida do paciente. O objetivo do estudo foi verificar a eficiência da associação da laserterapia e natação em ratos acometidos por axonotmeses. A amostra foi composta por 50 ratos da linhagem Wistar. Foram divididos em 5 grupos, sendo: grupo controle (GC); grupo controle cirúrgico (GCC); grupo experimental laser (GEL); grupo experimental natação (GEN) e grupo experimental laser associado à natação (GELAN). O nervo foi esmagado em um segmento de 5 mm de comprimento próximo a trifurcação do nervo isquiático, feito com uma pinça durante 60 segundos. Foi utilizado o laser infravermelho AsGa (904 nm) com energia irradiada de 0,4 J na primeira semana, 0,8 J na segunda semana e 1,2 J na terceira e quarta semana. Para avaliação funcional (IFC), os animais foram imobilizados, e a região plantar das patas foram pintadas com tinta de carimbo. Esse procedimento foi repetido duas vezes com cada animal. Foi realizada a morfometria (áreas, diâmetros e espessuras das fibras, axônios e bainha de mielina) dos nervos com mensuração de 220 fibras por animal de cada grupo. Pudemos observar que os grupos GEL e GEN, em todas as variáveis morfométricas estudadas, obtiveram os melhores resultados, quando comparados com os outros grupos (GC, GCC e GELAN), mas não apresentou diferença estatisticamente significante entre eles. Na análise funcional observou-se que o grupo GELAN obteve o melhor resultado quando comparado com os outros grupos (GCC, GEL e GEN) e quando comparados os grupos GEL e GEN entre eles não houve diferença estatisticamente significante. A conclusão foi que os grupos GEL e GEN obtiveram os melhores resultados morfométricos, enquanto o GELAN apresentou o melhor resultado funcional. Portanto, pode-se concluir que a associação destes recursos favoreceu a recuperação funcional desses animais.
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