Spontaneous healing of the tympanic membrane after traumatic perforation in rats
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Otorhinolaryngology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942014000400330 |
Resumo: | OBJECTIVE: The objective of the present study was to assess the healing of traumatic tympanic membrane perforation in rats. METHODS: The tympanic membrane from male Wistar rats was perforated in the anterior and posterior portions to the handle of the malleus. Five tympanic membranes were evaluated 3 days after tympanic perforation; 5 after 5 days; 5 after 7 days; 3 after 10 days; and 4 after 14 days. The tympanic membranes were submitted to histopathological evaluation after hematoxylin-eosin staining. RESULTS: Tympanic membrane closure occurred at about 7-10 days after injury and the healing process was complete by day 14. The proliferative activity of the outer epithelial layer was present close to the handle of the malleus and to the tympanic annulus. CONCLUSION: The spontaneous healing process of the tympanic membrane starts from the outer epithelial layer, with later healing of the lamina propria and the mucosal layer. |
id |
ABORL-F-1_06e89dd425d1562d296d65ef7895111a |
---|---|
oai_identifier_str |
oai:scielo:S1808-86942014000400330 |
network_acronym_str |
ABORL-F-1 |
network_name_str |
Brazilian Journal of Otorhinolaryngology |
repository_id_str |
|
spelling |
Spontaneous healing of the tympanic membrane after traumatic perforation in rats Tympanic membrane perforationWound healingHistology OBJECTIVE: The objective of the present study was to assess the healing of traumatic tympanic membrane perforation in rats. METHODS: The tympanic membrane from male Wistar rats was perforated in the anterior and posterior portions to the handle of the malleus. Five tympanic membranes were evaluated 3 days after tympanic perforation; 5 after 5 days; 5 after 7 days; 3 after 10 days; and 4 after 14 days. The tympanic membranes were submitted to histopathological evaluation after hematoxylin-eosin staining. RESULTS: Tympanic membrane closure occurred at about 7-10 days after injury and the healing process was complete by day 14. The proliferative activity of the outer epithelial layer was present close to the handle of the malleus and to the tympanic annulus. CONCLUSION: The spontaneous healing process of the tympanic membrane starts from the outer epithelial layer, with later healing of the lamina propria and the mucosal layer. Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial.2014-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942014000400330Brazilian Journal of Otorhinolaryngology v.80 n.4 2014reponame:Brazilian Journal of Otorhinolaryngologyinstname:Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF)instacron:ABORL-CCF10.1016/j.bjorl.2014.05.014info:eu-repo/semantics/openAccessAraújo,Marcos Miranda deMurashima,Adriana Andrade BatistaAlves,Vani MariaJamur,Maria CeliaHyppolito,Miguel Angeloeng2015-08-25T00:00:00Zoai:scielo:S1808-86942014000400330Revistahttp://www.bjorl.org.br/https://old.scielo.br/oai/scielo-oai.phprevista@aborlccf.org.br||revista@aborlccf.org.br1808-86861808-8686opendoar:2015-08-25T00:00Brazilian Journal of Otorhinolaryngology - Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF)false |
dc.title.none.fl_str_mv |
Spontaneous healing of the tympanic membrane after traumatic perforation in rats |
title |
Spontaneous healing of the tympanic membrane after traumatic perforation in rats |
spellingShingle |
Spontaneous healing of the tympanic membrane after traumatic perforation in rats Araújo,Marcos Miranda de Tympanic membrane perforation Wound healing Histology |
title_short |
Spontaneous healing of the tympanic membrane after traumatic perforation in rats |
title_full |
Spontaneous healing of the tympanic membrane after traumatic perforation in rats |
title_fullStr |
Spontaneous healing of the tympanic membrane after traumatic perforation in rats |
title_full_unstemmed |
Spontaneous healing of the tympanic membrane after traumatic perforation in rats |
title_sort |
Spontaneous healing of the tympanic membrane after traumatic perforation in rats |
author |
Araújo,Marcos Miranda de |
author_facet |
Araújo,Marcos Miranda de Murashima,Adriana Andrade Batista Alves,Vani Maria Jamur,Maria Celia Hyppolito,Miguel Angelo |
author_role |
author |
author2 |
Murashima,Adriana Andrade Batista Alves,Vani Maria Jamur,Maria Celia Hyppolito,Miguel Angelo |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Araújo,Marcos Miranda de Murashima,Adriana Andrade Batista Alves,Vani Maria Jamur,Maria Celia Hyppolito,Miguel Angelo |
dc.subject.por.fl_str_mv |
Tympanic membrane perforation Wound healing Histology |
topic |
Tympanic membrane perforation Wound healing Histology |
description |
OBJECTIVE: The objective of the present study was to assess the healing of traumatic tympanic membrane perforation in rats. METHODS: The tympanic membrane from male Wistar rats was perforated in the anterior and posterior portions to the handle of the malleus. Five tympanic membranes were evaluated 3 days after tympanic perforation; 5 after 5 days; 5 after 7 days; 3 after 10 days; and 4 after 14 days. The tympanic membranes were submitted to histopathological evaluation after hematoxylin-eosin staining. RESULTS: Tympanic membrane closure occurred at about 7-10 days after injury and the healing process was complete by day 14. The proliferative activity of the outer epithelial layer was present close to the handle of the malleus and to the tympanic annulus. CONCLUSION: The spontaneous healing process of the tympanic membrane starts from the outer epithelial layer, with later healing of the lamina propria and the mucosal layer. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-08-01 |
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=S1808-86942014000400330 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942014000400330 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1016/j.bjorl.2014.05.014 |
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 |
Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. |
publisher.none.fl_str_mv |
Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. |
dc.source.none.fl_str_mv |
Brazilian Journal of Otorhinolaryngology v.80 n.4 2014 reponame:Brazilian Journal of Otorhinolaryngology instname:Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF) instacron:ABORL-CCF |
instname_str |
Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF) |
instacron_str |
ABORL-CCF |
institution |
ABORL-CCF |
reponame_str |
Brazilian Journal of Otorhinolaryngology |
collection |
Brazilian Journal of Otorhinolaryngology |
repository.name.fl_str_mv |
Brazilian Journal of Otorhinolaryngology - Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial (ABORL-CCF) |
repository.mail.fl_str_mv |
revista@aborlccf.org.br||revista@aborlccf.org.br |
_version_ |
1754575991268704256 |