Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da Uninove |
Texto Completo: | http://bibliotecatede.uninove.br/handle/tede/2653 |
Resumo: | Currently, photobiomodulation is one of the most commonly used non-invasive therapies, and its benefits in wound healing are well described by literature. However, the dosimetric parameters of photobiomodulation, such as direction of polarization, coherence and regime of operation, are rarely considered. Although the radiation emitted by a laser is electromagnetic and, in turn, there is an associated electric field, the intensity of the electric field and its direction of propagation are not properly discussed. The objectives of this research were: developing a device capable of creating an electric field of the same intensity as that created by a polarized red laser; comparing cell migration and alignment of human fibroblasts produced by linearly polarized photobiomodulation to migration and alignment triggered by an electric field of the same intensity using the created device. The cells were sown in cover slots and submitted to the wound test, then divided into five experimental groups according to the received treatment: Control (C), parallel electric field (E //) and perpendicular electric field (Epp) in relation to the wound, laser polarized parallel to the wound (L //) and perpendicularly (Lpp) to the wound. All groups, except for the control group, were submitted to the electric field of 2V / cm intensity for 100 seconds by means of the polarized laser (λ = 660 nm) or a non-electromagnetic source. Migration was evaluated after 12 hours of treatment and alignment after 6 and 12 hours. All the treatments were effective in cell migration, with the L // group presenting the best rate. As for the alignment, 6 hours after the application of the electric field the control group was the least aligned and the L // was the only one aligned parallel to the incident field, in addition to being more aligned in relation to the others (p <0.05). 12 hours after the application of the electric field there was no group aligned parallel to the incident field and the control group was not different from E //. The most aligned group, Epp, although perpendicular to the incident electric field, was no different from the Lpp group. The direction of vibration of the electric field of the laser, when parallel to the long axis of the wound provoked in a culture of fibroblasts, looks promising for migration after 12 hours, but in that same period the best cellular alignment was verified with the perpendicular direction of the electric field of the non-laser device. |
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Silva, Daniela de Fátima Teixeira dahttp://lattes.cnpq.br/5912729434641689Nano, RosannaSilva, Daniela de Fátima Teixeira dahttp://lattes.cnpq.br/5912729434641689Rodrigues, Maria Fernanda Setúbal Destrohttp://lattes.cnpq.br/7153553682954852Pavani, Christianehttp://lattes.cnpq.br/2148910222765744Ribeiro, Martha Simõeshttp://lattes.cnpq.br/4996734160632011Nano, Rosanahttp://lattes.cnpq.br/9595137654844585Lopes, Fabio2021-11-04T14:11:55Z2018-02-28Lopes, Fabio. Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico. 2018. 61 f. Tese( Programa de Pós-Graduação em Biofotônica Aplicada às Ciências da Saúde) - Universidade Nove de Julho, São Paulo.http://bibliotecatede.uninove.br/handle/tede/2653Currently, photobiomodulation is one of the most commonly used non-invasive therapies, and its benefits in wound healing are well described by literature. However, the dosimetric parameters of photobiomodulation, such as direction of polarization, coherence and regime of operation, are rarely considered. Although the radiation emitted by a laser is electromagnetic and, in turn, there is an associated electric field, the intensity of the electric field and its direction of propagation are not properly discussed. The objectives of this research were: developing a device capable of creating an electric field of the same intensity as that created by a polarized red laser; comparing cell migration and alignment of human fibroblasts produced by linearly polarized photobiomodulation to migration and alignment triggered by an electric field of the same intensity using the created device. The cells were sown in cover slots and submitted to the wound test, then divided into five experimental groups according to the received treatment: Control (C), parallel electric field (E //) and perpendicular electric field (Epp) in relation to the wound, laser polarized parallel to the wound (L //) and perpendicularly (Lpp) to the wound. All groups, except for the control group, were submitted to the electric field of 2V / cm intensity for 100 seconds by means of the polarized laser (λ = 660 nm) or a non-electromagnetic source. Migration was evaluated after 12 hours of treatment and alignment after 6 and 12 hours. All the treatments were effective in cell migration, with the L // group presenting the best rate. As for the alignment, 6 hours after the application of the electric field the control group was the least aligned and the L // was the only one aligned parallel to the incident field, in addition to being more aligned in relation to the others (p <0.05). 12 hours after the application of the electric field there was no group aligned parallel to the incident field and the control group was not different from E //. The most aligned group, Epp, although perpendicular to the incident electric field, was no different from the Lpp group. The direction of vibration of the electric field of the laser, when parallel to the long axis of the wound provoked in a culture of fibroblasts, looks promising for migration after 12 hours, but in that same period the best cellular alignment was verified with the perpendicular direction of the electric field of the non-laser device.Atualmente, a fotobiomodulação é uma das terapias não invasivas mais utilizadas, e seus benefícios na cicatrização de feridas são bem descritos na literatura. No entanto, os parâmetros dosimétricos da fotobiomodulação como a direção de polarização, coerência e regime de funcionamento raramente são considerados. Embora a radiação emitida por um laser seja do tipo eletromagnética e, por sua vez, haja um campo elétrico a ela associado, a intensidade do campo elétrico e a sua direção de propagação não são apropriadamente discutidas. Os objetivos desta pesquisa foram desenvolver um dispositivo capaz de criar um campo elétrico de mesma intensidade daquele criado por um laser vermelho polarizado; comparar a migração e o alinhamento celular de fibroblastos humanos produzidos pela fotobiomodulação linearmente polarizada àqueles desencadeados por campo elétrico de mesma intensidade utilizando o dispositivo criado. As células foram semeadas em lamínulas e submetidas ao ensaio de ferida, em seguida foram divididas em cinco grupos experimentais de acordo com os tratamentos recebidos: Controle (C), campo elétrico paralelo (E//) e perpendicular (Epp) à ferida, laser polarizado paralelamente (L//) e perpendicularmente (Lpp) à ferida. Todos os grupos, exceto o grupo controle, foram submetidos ao campo elétrico de intensidade 2V/cm durante 100s por meio do laser polarizado (λ= 660 nm) ou por fonte não eletromagnética. A migração foi avaliada após 12h dos tratamentos e o alinhamento após 6 e 12h. Todos os tratamentos foram eficazes quanto à migração celular, com o grupo L// apresentando a melhor taxa. Quanto ao alinhamento, após 6h da aplicação do campo elétrico o grupo controle foi o menos alinhado e o L// foi o único alinhado paralelamente em relação ao campo incidente, além do mais alinhado em relação aos demais (p < 0,05). Após 12h da aplicação do campo elétrico não houve grupo alinhado paralelamente em relação ao campo incidente e o grupo controle somente não foi diferente do E//. O grupo mais alinhado, Epp, embora perpendicularmente em relação ao campo elétrico incidente, somente não foi diferente do grupo Lpp. a direção de vibração do campo elétrico do laser quando paralela ao longo eixo da ferida provocada em cultura de fibroblastos, mostra-se promissora quanto à migração após 12h, mas nesse mesmo período o melhor alinhamento celular foi verificado com a direção perpendicular do campo elétrico do dispositivo não-laser.Submitted by Nadir Basilio (nadirsb@uninove.br) on 2021-11-04T14:11:55Z No. of bitstreams: 1 Fabio Lopes.pdf: 1458582 bytes, checksum: 723744bb904153d11f6153a4055d9ad2 (MD5)Made available in DSpace on 2021-11-04T14:11:55Z (GMT). No. of bitstreams: 1 Fabio Lopes.pdf: 1458582 bytes, checksum: 723744bb904153d11f6153a4055d9ad2 (MD5) Previous issue date: 2018-02-28application/pdfporUniversidade Nove de JulhoPrograma de Pós-Graduação em Biofotônica Aplicada às Ciências da SaúdeUNINOVEBrasilSaúdecampo elétricolaser polarizadofotobiomodulaçãoensaio de feridafibroblastos humanoselectrical fieldpolarized laserphotobiomodulationwound assayhuman fibroblastsCIENCIAS DA SAUDELaser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísicoPolarized laser versus uniform electric field in cell culture: biological and biophysical effectsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis8765449414823306929600info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da Uninoveinstname:Universidade Nove de Julho (UNINOVE)instacron:UNINOVEORIGINALFabio Lopes.pdfFabio Lopes.pdfapplication/pdf1458582http://localhost:8080/tede/bitstream/tede/2653/2/Fabio+Lopes.pdf723744bb904153d11f6153a4055d9ad2MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://localhost:8080/tede/bitstream/tede/2653/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51tede/26532021-11-04 12:11:55.502oai:localhost: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Biblioteca Digital de Teses e Dissertaçõeshttp://bibliotecatede.uninove.br/PRIhttp://bibliotecatede.uninove.br/oai/requestbibliotecatede@uninove.br||bibliotecatede@uninove.bropendoar:2021-11-04T14:11:55Biblioteca Digital de Teses e Dissertações da Uninove - Universidade Nove de Julho (UNINOVE)false |
dc.title.por.fl_str_mv |
Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico |
dc.title.alternative.eng.fl_str_mv |
Polarized laser versus uniform electric field in cell culture: biological and biophysical effects |
title |
Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico |
spellingShingle |
Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico Lopes, Fabio campo elétrico laser polarizado fotobiomodulação ensaio de ferida fibroblastos humanos electrical field polarized laser photobiomodulation wound assay human fibroblasts CIENCIAS DA SAUDE |
title_short |
Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico |
title_full |
Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico |
title_fullStr |
Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico |
title_full_unstemmed |
Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico |
title_sort |
Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico |
author |
Lopes, Fabio |
author_facet |
Lopes, Fabio |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Silva, Daniela de Fátima Teixeira da |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5912729434641689 |
dc.contributor.advisor-co1.fl_str_mv |
Nano, Rosanna |
dc.contributor.referee1.fl_str_mv |
Silva, Daniela de Fátima Teixeira da |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/5912729434641689 |
dc.contributor.referee2.fl_str_mv |
Rodrigues, Maria Fernanda Setúbal Destro |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/7153553682954852 |
dc.contributor.referee3.fl_str_mv |
Pavani, Christiane |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/2148910222765744 |
dc.contributor.referee4.fl_str_mv |
Ribeiro, Martha Simões |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/4996734160632011 |
dc.contributor.referee5.fl_str_mv |
Nano, Rosana |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/9595137654844585 |
dc.contributor.author.fl_str_mv |
Lopes, Fabio |
contributor_str_mv |
Silva, Daniela de Fátima Teixeira da Nano, Rosanna Silva, Daniela de Fátima Teixeira da Rodrigues, Maria Fernanda Setúbal Destro Pavani, Christiane Ribeiro, Martha Simões Nano, Rosana |
dc.subject.por.fl_str_mv |
campo elétrico laser polarizado fotobiomodulação ensaio de ferida fibroblastos humanos |
topic |
campo elétrico laser polarizado fotobiomodulação ensaio de ferida fibroblastos humanos electrical field polarized laser photobiomodulation wound assay human fibroblasts CIENCIAS DA SAUDE |
dc.subject.eng.fl_str_mv |
electrical field polarized laser photobiomodulation wound assay human fibroblasts |
dc.subject.cnpq.fl_str_mv |
CIENCIAS DA SAUDE |
description |
Currently, photobiomodulation is one of the most commonly used non-invasive therapies, and its benefits in wound healing are well described by literature. However, the dosimetric parameters of photobiomodulation, such as direction of polarization, coherence and regime of operation, are rarely considered. Although the radiation emitted by a laser is electromagnetic and, in turn, there is an associated electric field, the intensity of the electric field and its direction of propagation are not properly discussed. The objectives of this research were: developing a device capable of creating an electric field of the same intensity as that created by a polarized red laser; comparing cell migration and alignment of human fibroblasts produced by linearly polarized photobiomodulation to migration and alignment triggered by an electric field of the same intensity using the created device. The cells were sown in cover slots and submitted to the wound test, then divided into five experimental groups according to the received treatment: Control (C), parallel electric field (E //) and perpendicular electric field (Epp) in relation to the wound, laser polarized parallel to the wound (L //) and perpendicularly (Lpp) to the wound. All groups, except for the control group, were submitted to the electric field of 2V / cm intensity for 100 seconds by means of the polarized laser (λ = 660 nm) or a non-electromagnetic source. Migration was evaluated after 12 hours of treatment and alignment after 6 and 12 hours. All the treatments were effective in cell migration, with the L // group presenting the best rate. As for the alignment, 6 hours after the application of the electric field the control group was the least aligned and the L // was the only one aligned parallel to the incident field, in addition to being more aligned in relation to the others (p <0.05). 12 hours after the application of the electric field there was no group aligned parallel to the incident field and the control group was not different from E //. The most aligned group, Epp, although perpendicular to the incident electric field, was no different from the Lpp group. The direction of vibration of the electric field of the laser, when parallel to the long axis of the wound provoked in a culture of fibroblasts, looks promising for migration after 12 hours, but in that same period the best cellular alignment was verified with the perpendicular direction of the electric field of the non-laser device. |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018-02-28 |
dc.date.accessioned.fl_str_mv |
2021-11-04T14:11:55Z |
dc.type.status.fl_str_mv |
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dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Lopes, Fabio. Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico. 2018. 61 f. Tese( Programa de Pós-Graduação em Biofotônica Aplicada às Ciências da Saúde) - Universidade Nove de Julho, São Paulo. |
dc.identifier.uri.fl_str_mv |
http://bibliotecatede.uninove.br/handle/tede/2653 |
identifier_str_mv |
Lopes, Fabio. Laser polarizado versus campo elétrico uniforme em cultura celular: efeitos biológico e biofísico. 2018. 61 f. Tese( Programa de Pós-Graduação em Biofotônica Aplicada às Ciências da Saúde) - Universidade Nove de Julho, São Paulo. |
url |
http://bibliotecatede.uninove.br/handle/tede/2653 |
dc.language.iso.fl_str_mv |
por |
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por |
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600 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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Universidade Nove de Julho |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Biofotônica Aplicada às Ciências da Saúde |
dc.publisher.initials.fl_str_mv |
UNINOVE |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Saúde |
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Universidade Nove de Julho |
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