A comparative study of the effects of laser photobiomodulation on the healing of third-degree burns: a histological study in rats

Detalhes bibliográficos
Autor(a) principal: Meireles, Gyselle Cynthia Silva
Data de Publicação: 2008
Outros Autores: Santos, Jean Nunes dos, Chagas, Priscila O., Moura, Adriana P., Pinheiro, Antonio Luiz Barbosa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/14635
Resumo: Texto completo: acesso restrito. p. 159-166
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spelling Meireles, Gyselle Cynthia SilvaSantos, Jean Nunes dosChagas, Priscila O.Moura, Adriana P.Pinheiro, Antonio Luiz BarbosaMeireles, Gyselle Cynthia SilvaSantos, Jean Nunes dosChagas, Priscila O.Moura, Adriana P.Pinheiro, Antonio Luiz Barbosa2014-02-19T18:10:33Z20081549-5418http://repositorio.ufba.br/ri/handle/ri/14635v. 26, n. 2Texto completo: acesso restrito. p. 159-166Objective: The aim of this investigation was to compare by light microscopy the effects of laser photobiomodulation at wavelengths of 660 and 780 nm on third-degree burns in Wistar rats. Background Data: Burns are severe injuries that result in the loss of fluid and destruction of tissue, infection, and shock that may result in death. Laser energy has been suggested as an effective method to improve wound healing. Materials and Methods: Fifty-five animals were used in this study. A third-degree burn measuring 1.5 × 1.5 cm was created on the dorsum of each animal. The animals were divided into three subgroups according the type of laser photobiomodulation they received (wavelength of 660 or 780 nm, 35 mW, θ = 2 mm, and 20 J/cm2). In the animals receiving treatment, it was begun immediately post-burn at four points around the burn (5 J/cm2) and repeated at 24-h intervals for 21 d. The animals were humanely killed after 3, 5, 7, 14, and 21 d by an intraperitoneal overdose of general anesthetic. The specimens were routinely cut and stained, and then were analyzed by light microscopy. Results: The results showed more deposition of collagen fibers, larger amounts of granulation tissue, less edema, a more vigorous inflammatory reaction, and increased revascularization on all laser-treated animals. These features were more evident at early stages when the 660-nm laser was used, and were more evident throughout the experimental period for the animals receiving 780-nm laser therapy. Conclusion: We concluded that laser photobiomodulation using both wavelengths improved healing of third-degree burns on Wistar rats.Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2013-12-10T10:33:57Z No. of bitstreams: 1 pho%2E2007%2E2052.pdf: 8388608 bytes, checksum: 86d6300c145099fdb8a563872a978ed1 (MD5)Approved for entry into archive by Flávia Ferreira (flaviaccf@yahoo.com.br) on 2014-02-19T18:10:33Z (GMT) No. of bitstreams: 1 pho%2E2007%2E2052.pdf: 8388608 bytes, checksum: 86d6300c145099fdb8a563872a978ed1 (MD5)Made available in DSpace on 2014-02-19T18:10:33Z (GMT). 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dc.title.pt_BR.fl_str_mv A comparative study of the effects of laser photobiomodulation on the healing of third-degree burns: a histological study in rats
dc.title.alternative.pt_BR.fl_str_mv Photomedicine and Laser Surgery
title A comparative study of the effects of laser photobiomodulation on the healing of third-degree burns: a histological study in rats
spellingShingle A comparative study of the effects of laser photobiomodulation on the healing of third-degree burns: a histological study in rats
Meireles, Gyselle Cynthia Silva
Lasers
Photobiomodulation
Rats
title_short A comparative study of the effects of laser photobiomodulation on the healing of third-degree burns: a histological study in rats
title_full A comparative study of the effects of laser photobiomodulation on the healing of third-degree burns: a histological study in rats
title_fullStr A comparative study of the effects of laser photobiomodulation on the healing of third-degree burns: a histological study in rats
title_full_unstemmed A comparative study of the effects of laser photobiomodulation on the healing of third-degree burns: a histological study in rats
title_sort A comparative study of the effects of laser photobiomodulation on the healing of third-degree burns: a histological study in rats
author Meireles, Gyselle Cynthia Silva
author_facet Meireles, Gyselle Cynthia Silva
Santos, Jean Nunes dos
Chagas, Priscila O.
Moura, Adriana P.
Pinheiro, Antonio Luiz Barbosa
author_role author
author2 Santos, Jean Nunes dos
Chagas, Priscila O.
Moura, Adriana P.
Pinheiro, Antonio Luiz Barbosa
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Meireles, Gyselle Cynthia Silva
Santos, Jean Nunes dos
Chagas, Priscila O.
Moura, Adriana P.
Pinheiro, Antonio Luiz Barbosa
Meireles, Gyselle Cynthia Silva
Santos, Jean Nunes dos
Chagas, Priscila O.
Moura, Adriana P.
Pinheiro, Antonio Luiz Barbosa
dc.subject.por.fl_str_mv Lasers
Photobiomodulation
Rats
topic Lasers
Photobiomodulation
Rats
description Texto completo: acesso restrito. p. 159-166
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2014-02-19T18:10:33Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/14635
dc.identifier.issn.none.fl_str_mv 1549-5418
dc.identifier.number.pt_BR.fl_str_mv v. 26, n. 2
identifier_str_mv 1549-5418
v. 26, n. 2
url http://repositorio.ufba.br/ri/handle/ri/14635
dc.language.iso.fl_str_mv eng
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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