Effects of different fluences of low-level laser therapy in an experimental model of spinal cord injury in rats

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dc.citation.issue2
dc.citation.volume32
dc.contributor.authorVeronez, Suellen de Oliveira [UNIFESP]
dc.contributor.authorAssis, Livia [UNIFESP]
dc.contributor.authorDel Campo, Paula [UNIFESP]
dc.contributor.authorDe Oliveira, Flavia [UNIFESP]
dc.contributor.authorCastro, Glaucia Monteiro de [UNIFESP]
dc.contributor.authorRenno, Ana Claudia Muniz [UNIFESP]
dc.contributor.authorMedalha, Carla Christina [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.coverageLondon
dc.date.accessioned2020-07-17T14:03:09Z
dc.date.available2020-07-17T14:03:09Z
dc.date.issued2017
dc.description.abstractThe aim of this study was to evaluate the in vivo response of different fluences of low-level laser therapy (LLLT) on the area of the injury, inflammatory markers, and functional recovery using an experimental model of traumatic spinal cord injury (SCI). Thirty two rats were randomly divided into four experimental groups: control group (CG), laser-treated group 500 J/cm(2) (L-500), laser-treated group 750 J/cm(2) (L-750), and laser-treated group 1000 J/cm(2) (L-1000). SCI was performed by an impactor equipment (between the ninth and tenth thoracic vertebrae), with a pressure of 150 kdyn. Afterwards, the injured region was irradiated daily for seven consecutive sessions, using an 808-nm laser, at the respective fluence of each experimental groups. Motor function and tactile sensitivity were performed on days 1 and 7 post-surgery. Animals were euthanized on the eighth day after injury, and the samples were retrieved for histological and immunohistochemistry analyses. Functional evaluation and tactile sensitivity were improved after LLLT, at the higher fluence. Additionally, LLLT, at 750 and 1000 J/cm(2), reduces the lesion volume and modulates the inflammatory process with decrease of CD-68 protein expression. These results suggest that LLLT at higher doses was effective in promoting functional recovery and modulating inflammatory process in the spinal cord of rats after SCI.en
dc.description.affiliationUniv Fed Sao Paulo, Dept Biosci, R Silva Jardim 136, BR-11015020 Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Biosci, R Silva Jardim 136, BR-11015020 Sao Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent343-349
dc.identifierhttps://dx.doi.org/10.1007/s10103-016-2120-7
dc.identifier.citationLasers In Medical Science. London, v. 32, n. 2, p. 343-349, 2017.
dc.identifier.doi10.1007/s10103-016-2120-7
dc.identifier.issn0268-8921
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/55190
dc.identifier.wosWOS:000394154600011
dc.language.isoeng
dc.publisherSpringer London Ltd
dc.relation.ispartofLasers In Medical Science
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectLow-level laser therapyen
dc.subjectSpinal cord injuryen
dc.subjectNeuronal plasticityen
dc.subjectWistaren
dc.titleEffects of different fluences of low-level laser therapy in an experimental model of spinal cord injury in ratsen
dc.typeinfo:eu-repo/semantics/article
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