High voltage pulsed current in collagen realignment, synthesis, and angiogenesis after Achilles tendon partial rupture
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNIFESP |
Texto Completo: | https://repositorio.unifesp.br/handle/11600/57617 http://dx.doi.org/10.1590/bjpt-rbf.2014.0167 |
Resumo: | Objective: To verify the efficacy of high voltage pulsed current in collagen realignment and synthesis and in angiogenesis after the partial rupturing of the Achilles tendon in rats. Method: Forty male Wistar rats were randomized into four groups of 10 animals each: sham, cathodic stimulation, anodic stimulation, and alternating stimulation. Their Achilles tendons were submitted to direct trauma by a free-falling metal bar. Then, the treatment was administered for six consecutive days after the injury. In the simulation group, the electrodes were positioned on the animal, but the device remained off for 30 minutes. The other groups used a frequency of 120 pps, sensory threshold, and the corresponding polarity. On the seventh day, the tendons were removed and sent for histological slide preparation for birefringence and Picrosirius Red analysis and for blood vessel quantification. Results: No significant difference was observed among the groups regarding collagen realignment (types I or III collagen) or quantity of blood vessels. Conclusion: High voltage pulsed current for six consecutive days was not effective in collagen realignment, synthesis, or angiogenesis after the partial rupturing of the Achilles tendon in rats. |
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Rampazo, Erika P. [UNIFESP]Liebano, Richard E.Pinfildi, Carlos Eduardo [UNIFESP]Folha, Roberta A. C. [UNIFESP]Ferreira, Lydia M. [UNIFESP]2020-08-14T13:44:21Z2020-08-14T13:44:21Z2016Brazilian Journal Of Physical Therapy. Sao Carlos Sp, v. 20, n. 4, p. 312-319, 2016.1413-3555https://repositorio.unifesp.br/handle/11600/57617http://dx.doi.org/10.1590/bjpt-rbf.2014.0167WOS000383791500004.pdfS1413-3555201600040031210.1590/bjpt-rbf.2014.0167WOS:000383791500004Objective: To verify the efficacy of high voltage pulsed current in collagen realignment and synthesis and in angiogenesis after the partial rupturing of the Achilles tendon in rats. Method: Forty male Wistar rats were randomized into four groups of 10 animals each: sham, cathodic stimulation, anodic stimulation, and alternating stimulation. Their Achilles tendons were submitted to direct trauma by a free-falling metal bar. Then, the treatment was administered for six consecutive days after the injury. In the simulation group, the electrodes were positioned on the animal, but the device remained off for 30 minutes. The other groups used a frequency of 120 pps, sensory threshold, and the corresponding polarity. On the seventh day, the tendons were removed and sent for histological slide preparation for birefringence and Picrosirius Red analysis and for blood vessel quantification. Results: No significant difference was observed among the groups regarding collagen realignment (types I or III collagen) or quantity of blood vessels. Conclusion: High voltage pulsed current for six consecutive days was not effective in collagen realignment, synthesis, or angiogenesis after the partial rupturing of the Achilles tendon in rats.Univ Fed Sao Paulo UNIFESP, Dept Cirurgia Plast, Sao Paulo, SP, BrazilUniv Fed Sao Carlos UFSCar, Dept Fisioterapia, Sao Carlos, SP, BrazilUNIFESP, Dept Ciencias Movimento Humano, Santos, SP, BrazilUniv Fed Sao Paulo UNIFESP, Dept Cirurgia Plast, Sao Paulo, SP, BrazilUNIFESP, Dept Ciencias Movimento Humano, Santos, SP, BrazilWeb of Science312-319engAssociacao Brasileira Pesquisa Pos-Graduacao Fisioterapia-Abrapg-FtBrazilian Journal Of Physical Therapyelectrical stimulationtendinopathyhealingphysical agentstissue repairphysical therapyHigh voltage pulsed current in collagen realignment, synthesis, and angiogenesis after Achilles tendon partial ruptureinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSao Carlos Sp204info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESPORIGINALWOS000383791500004.pdfapplication/pdf2006276${dspace.ui.url}/bitstream/11600/57617/1/WOS000383791500004.pdfc0502acec01a7b744a20200641352ee1MD51open accessTEXTWOS000383791500004.pdf.txtWOS000383791500004.pdf.txtExtracted texttext/plain31225${dspace.ui.url}/bitstream/11600/57617/5/WOS000383791500004.pdf.txtf57228e471a0444a7a75233ec5eec579MD55open accessTHUMBNAILWOS000383791500004.pdf.jpgWOS000383791500004.pdf.jpgIM Thumbnailimage/jpeg6538${dspace.ui.url}/bitstream/11600/57617/7/WOS000383791500004.pdf.jpg99f3cf63b988cf0ad3e722d4d4963d11MD57open access11600/576172023-06-05 19:07:24.416open accessoai:repositorio.unifesp.br:11600/57617Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestopendoar:34652023-06-05T22:07:24Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false |
dc.title.en.fl_str_mv |
High voltage pulsed current in collagen realignment, synthesis, and angiogenesis after Achilles tendon partial rupture |
title |
High voltage pulsed current in collagen realignment, synthesis, and angiogenesis after Achilles tendon partial rupture |
spellingShingle |
High voltage pulsed current in collagen realignment, synthesis, and angiogenesis after Achilles tendon partial rupture Rampazo, Erika P. [UNIFESP] electrical stimulation tendinopathy healing physical agents tissue repair physical therapy |
title_short |
High voltage pulsed current in collagen realignment, synthesis, and angiogenesis after Achilles tendon partial rupture |
title_full |
High voltage pulsed current in collagen realignment, synthesis, and angiogenesis after Achilles tendon partial rupture |
title_fullStr |
High voltage pulsed current in collagen realignment, synthesis, and angiogenesis after Achilles tendon partial rupture |
title_full_unstemmed |
High voltage pulsed current in collagen realignment, synthesis, and angiogenesis after Achilles tendon partial rupture |
title_sort |
High voltage pulsed current in collagen realignment, synthesis, and angiogenesis after Achilles tendon partial rupture |
author |
Rampazo, Erika P. [UNIFESP] |
author_facet |
Rampazo, Erika P. [UNIFESP] Liebano, Richard E. Pinfildi, Carlos Eduardo [UNIFESP] Folha, Roberta A. C. [UNIFESP] Ferreira, Lydia M. [UNIFESP] |
author_role |
author |
author2 |
Liebano, Richard E. Pinfildi, Carlos Eduardo [UNIFESP] Folha, Roberta A. C. [UNIFESP] Ferreira, Lydia M. [UNIFESP] |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Rampazo, Erika P. [UNIFESP] Liebano, Richard E. Pinfildi, Carlos Eduardo [UNIFESP] Folha, Roberta A. C. [UNIFESP] Ferreira, Lydia M. [UNIFESP] |
dc.subject.eng.fl_str_mv |
electrical stimulation tendinopathy healing physical agents tissue repair physical therapy |
topic |
electrical stimulation tendinopathy healing physical agents tissue repair physical therapy |
description |
Objective: To verify the efficacy of high voltage pulsed current in collagen realignment and synthesis and in angiogenesis after the partial rupturing of the Achilles tendon in rats. Method: Forty male Wistar rats were randomized into four groups of 10 animals each: sham, cathodic stimulation, anodic stimulation, and alternating stimulation. Their Achilles tendons were submitted to direct trauma by a free-falling metal bar. Then, the treatment was administered for six consecutive days after the injury. In the simulation group, the electrodes were positioned on the animal, but the device remained off for 30 minutes. The other groups used a frequency of 120 pps, sensory threshold, and the corresponding polarity. On the seventh day, the tendons were removed and sent for histological slide preparation for birefringence and Picrosirius Red analysis and for blood vessel quantification. Results: No significant difference was observed among the groups regarding collagen realignment (types I or III collagen) or quantity of blood vessels. Conclusion: High voltage pulsed current for six consecutive days was not effective in collagen realignment, synthesis, or angiogenesis after the partial rupturing of the Achilles tendon in rats. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2020-08-14T13:44:21Z |
dc.date.available.fl_str_mv |
2020-08-14T13:44:21Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Brazilian Journal Of Physical Therapy. Sao Carlos Sp, v. 20, n. 4, p. 312-319, 2016. |
dc.identifier.uri.fl_str_mv |
https://repositorio.unifesp.br/handle/11600/57617 http://dx.doi.org/10.1590/bjpt-rbf.2014.0167 |
dc.identifier.issn.none.fl_str_mv |
1413-3555 |
dc.identifier.file.none.fl_str_mv |
WOS000383791500004.pdf |
dc.identifier.scielo.none.fl_str_mv |
S1413-35552016000400312 |
dc.identifier.doi.none.fl_str_mv |
10.1590/bjpt-rbf.2014.0167 |
dc.identifier.wos.none.fl_str_mv |
WOS:000383791500004 |
identifier_str_mv |
Brazilian Journal Of Physical Therapy. Sao Carlos Sp, v. 20, n. 4, p. 312-319, 2016. 1413-3555 WOS000383791500004.pdf S1413-35552016000400312 10.1590/bjpt-rbf.2014.0167 WOS:000383791500004 |
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https://repositorio.unifesp.br/handle/11600/57617 http://dx.doi.org/10.1590/bjpt-rbf.2014.0167 |
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eng |
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Brazilian Journal Of Physical Therapy |
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openAccess |
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312-319 |
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Sao Carlos Sp |
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Associacao Brasileira Pesquisa Pos-Graduacao Fisioterapia-Abrapg-Ft |
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Associacao Brasileira Pesquisa Pos-Graduacao Fisioterapia-Abrapg-Ft |
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