Low-level laser therapy in periarticular morphological aspects of the knee of Wistar rats in rheumatoid arthritis model
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | BrJP (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2595-31922020000100008 |
Resumo: | ABSTRACT BACKGROUND AND OBJECTIVES: The deleterious effects of rheumatoid arthritis on periarticular tissues have not yet been fully elucidated. Therefore, the search for treatments that can modulate the inflammatory profile and tissue remodeling is pertinent. The present study evaluated the effects of low-level laser therapy (LLLT) on the morphology of periarticular tissues and synovial membrane of rats in a rheumatoid arthritis model. METHODS: Sixty-four male rats were divided into acute (7 days) and chronic (28 days) inflammatory periods, with four groups (n=8) each, being: CG (control group), LG (lesion group), CLaG (laser control group) and LLaG (laser lesion group). The animals of the lesion groups received two inoculations of Freund’s Complete Adjuvant at a concentration of 50µL, the first at the base of the tail, and the second at the right knee. The animals in the control groups were injected with isotonic sodium chloride solution. The ClaG and LLaG were treated with 660nm LBI, 5J/cm2 in the right knee. After the experimental period, the animals were euthanized, and the knees were processed for light microscopy. RESULTS: The CG and CLaG morphological analysis had normal aspects. The LG showed synovitis, femur, and tibia with changes in the periosteum, with inflammatory cells and bone modifications. In the LLaG, the synovial membrane showed signs of improvement. Bone tissue in the chronic period showed morphological aspects, denoting tissue remodeling. CONCLUSION: The experimental model was efficient in simulating inflammatory tissue events, and the low-level laser therapy showed beneficial effects on the morphology of the periarticular tissues. |
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Low-level laser therapy in periarticular morphological aspects of the knee of Wistar rats in rheumatoid arthritis modelKnee jointLaser therapyRheumatoid arthritisABSTRACT BACKGROUND AND OBJECTIVES: The deleterious effects of rheumatoid arthritis on periarticular tissues have not yet been fully elucidated. Therefore, the search for treatments that can modulate the inflammatory profile and tissue remodeling is pertinent. The present study evaluated the effects of low-level laser therapy (LLLT) on the morphology of periarticular tissues and synovial membrane of rats in a rheumatoid arthritis model. METHODS: Sixty-four male rats were divided into acute (7 days) and chronic (28 days) inflammatory periods, with four groups (n=8) each, being: CG (control group), LG (lesion group), CLaG (laser control group) and LLaG (laser lesion group). The animals of the lesion groups received two inoculations of Freund’s Complete Adjuvant at a concentration of 50µL, the first at the base of the tail, and the second at the right knee. The animals in the control groups were injected with isotonic sodium chloride solution. The ClaG and LLaG were treated with 660nm LBI, 5J/cm2 in the right knee. After the experimental period, the animals were euthanized, and the knees were processed for light microscopy. RESULTS: The CG and CLaG morphological analysis had normal aspects. The LG showed synovitis, femur, and tibia with changes in the periosteum, with inflammatory cells and bone modifications. In the LLaG, the synovial membrane showed signs of improvement. Bone tissue in the chronic period showed morphological aspects, denoting tissue remodeling. CONCLUSION: The experimental model was efficient in simulating inflammatory tissue events, and the low-level laser therapy showed beneficial effects on the morphology of the periarticular tissues.Sociedade Brasileira para o Estudo da Dor2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2595-31922020000100008BrJP v.3 n.1 2020reponame:BrJP (Online)instname:Sociedade Brasileira para o Estudo da Dor (SBED)instacron:SBED10.5935/2595-0118.20200003info:eu-repo/semantics/openAccessNeves,MorganaTavares,Alana Ludemila de FreitasRetameiro,Ana Caroline BarbosaLeal,Taciane Stein da SilvaRibeiro,Lucinéia de Fátima ChaskoBertolini,Gladson Ricardo Floreng2020-02-19T00:00:00Zoai:scielo:S2595-31922020000100008Revistahttps://sbed.org.br/publicacoes-publicacoes-bjp/ONGhttps://old.scielo.br/oai/scielo-oai.phpdkt@terra.com.br || dor@dor.org.br2595-31922595-0118opendoar:2020-02-19T00:00BrJP (Online) - Sociedade Brasileira para o Estudo da Dor (SBED)false |
dc.title.none.fl_str_mv |
Low-level laser therapy in periarticular morphological aspects of the knee of Wistar rats in rheumatoid arthritis model |
title |
Low-level laser therapy in periarticular morphological aspects of the knee of Wistar rats in rheumatoid arthritis model |
spellingShingle |
Low-level laser therapy in periarticular morphological aspects of the knee of Wistar rats in rheumatoid arthritis model Neves,Morgana Knee joint Laser therapy Rheumatoid arthritis |
title_short |
Low-level laser therapy in periarticular morphological aspects of the knee of Wistar rats in rheumatoid arthritis model |
title_full |
Low-level laser therapy in periarticular morphological aspects of the knee of Wistar rats in rheumatoid arthritis model |
title_fullStr |
Low-level laser therapy in periarticular morphological aspects of the knee of Wistar rats in rheumatoid arthritis model |
title_full_unstemmed |
Low-level laser therapy in periarticular morphological aspects of the knee of Wistar rats in rheumatoid arthritis model |
title_sort |
Low-level laser therapy in periarticular morphological aspects of the knee of Wistar rats in rheumatoid arthritis model |
author |
Neves,Morgana |
author_facet |
Neves,Morgana Tavares,Alana Ludemila de Freitas Retameiro,Ana Caroline Barbosa Leal,Taciane Stein da Silva Ribeiro,Lucinéia de Fátima Chasko Bertolini,Gladson Ricardo Flor |
author_role |
author |
author2 |
Tavares,Alana Ludemila de Freitas Retameiro,Ana Caroline Barbosa Leal,Taciane Stein da Silva Ribeiro,Lucinéia de Fátima Chasko Bertolini,Gladson Ricardo Flor |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Neves,Morgana Tavares,Alana Ludemila de Freitas Retameiro,Ana Caroline Barbosa Leal,Taciane Stein da Silva Ribeiro,Lucinéia de Fátima Chasko Bertolini,Gladson Ricardo Flor |
dc.subject.por.fl_str_mv |
Knee joint Laser therapy Rheumatoid arthritis |
topic |
Knee joint Laser therapy Rheumatoid arthritis |
description |
ABSTRACT BACKGROUND AND OBJECTIVES: The deleterious effects of rheumatoid arthritis on periarticular tissues have not yet been fully elucidated. Therefore, the search for treatments that can modulate the inflammatory profile and tissue remodeling is pertinent. The present study evaluated the effects of low-level laser therapy (LLLT) on the morphology of periarticular tissues and synovial membrane of rats in a rheumatoid arthritis model. METHODS: Sixty-four male rats were divided into acute (7 days) and chronic (28 days) inflammatory periods, with four groups (n=8) each, being: CG (control group), LG (lesion group), CLaG (laser control group) and LLaG (laser lesion group). The animals of the lesion groups received two inoculations of Freund’s Complete Adjuvant at a concentration of 50µL, the first at the base of the tail, and the second at the right knee. The animals in the control groups were injected with isotonic sodium chloride solution. The ClaG and LLaG were treated with 660nm LBI, 5J/cm2 in the right knee. After the experimental period, the animals were euthanized, and the knees were processed for light microscopy. RESULTS: The CG and CLaG morphological analysis had normal aspects. The LG showed synovitis, femur, and tibia with changes in the periosteum, with inflammatory cells and bone modifications. In the LLaG, the synovial membrane showed signs of improvement. Bone tissue in the chronic period showed morphological aspects, denoting tissue remodeling. CONCLUSION: The experimental model was efficient in simulating inflammatory tissue events, and the low-level laser therapy showed beneficial effects on the morphology of the periarticular tissues. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2595-31922020000100008 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2595-31922020000100008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/2595-0118.20200003 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira para o Estudo da Dor |
publisher.none.fl_str_mv |
Sociedade Brasileira para o Estudo da Dor |
dc.source.none.fl_str_mv |
BrJP v.3 n.1 2020 reponame:BrJP (Online) instname:Sociedade Brasileira para o Estudo da Dor (SBED) instacron:SBED |
instname_str |
Sociedade Brasileira para o Estudo da Dor (SBED) |
instacron_str |
SBED |
institution |
SBED |
reponame_str |
BrJP (Online) |
collection |
BrJP (Online) |
repository.name.fl_str_mv |
BrJP (Online) - Sociedade Brasileira para o Estudo da Dor (SBED) |
repository.mail.fl_str_mv |
dkt@terra.com.br || dor@dor.org.br |
_version_ |
1754732509911842816 |