Experimental candidosis on rat’s tongue
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Brazilian Dental Science |
Texto Completo: | https://ojs.ict.unesp.br/index.php/cob/article/view/484 |
Resumo: | The purpose of this study was to evaluate the development of candidosis in rat’s tongue after intraepithelialinjections of Candida albicans. Fifty rats (Rattus norvegicus, Albinus, Wistar), originally negative for the Candidaspp. received ten intraepithelial injections of C. albicans on the dorsal tongue. Groups of five animals werekilled after 1, 2, 4, 6, 8, and 12 hours and 1, 2, 7, and 15 days after the injection. The rat’s tongues weresurgically removed and then macroscopic and microscopic analyses were performed. The development of candidosislesions was observed in all the rats studied. One hour after the injection, the development of germ tubesfrom the yeast cells could be observed. After 4 hours, Candida spp. pseudohyphae penetrated the epithelial cellswith the formation of microabscesses. After 24 to 48 hours, the epithelial areas with pseudohyphae invasionpresented desquamation, hyperplasia of the basal layer and discrete inflammation of the connective tissue. Afterseven days, few pseudohyphae could be observed. The epithelium presented acanthosis, hyperkeratosis and lossof filiform papillae. After 15 days, neither yeasts nor pseudohyphae were found. In some areas, the epitheliumpresented acanthosis and loss of filiform papillae. It can be concluded that the intraepithelial injection of Candidaalbicans on the dorsal rat tongue caused candidosis lesions in all the animals studied. C. albicans waspresent until seven days after the injections. |
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Brazilian Dental Science |
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Experimental candidosis on rat’s tongueThe purpose of this study was to evaluate the development of candidosis in rat’s tongue after intraepithelialinjections of Candida albicans. Fifty rats (Rattus norvegicus, Albinus, Wistar), originally negative for the Candidaspp. received ten intraepithelial injections of C. albicans on the dorsal tongue. Groups of five animals werekilled after 1, 2, 4, 6, 8, and 12 hours and 1, 2, 7, and 15 days after the injection. The rat’s tongues weresurgically removed and then macroscopic and microscopic analyses were performed. The development of candidosislesions was observed in all the rats studied. One hour after the injection, the development of germ tubesfrom the yeast cells could be observed. After 4 hours, Candida spp. pseudohyphae penetrated the epithelial cellswith the formation of microabscesses. After 24 to 48 hours, the epithelial areas with pseudohyphae invasionpresented desquamation, hyperplasia of the basal layer and discrete inflammation of the connective tissue. Afterseven days, few pseudohyphae could be observed. The epithelium presented acanthosis, hyperkeratosis and lossof filiform papillae. After 15 days, neither yeasts nor pseudohyphae were found. In some areas, the epitheliumpresented acanthosis and loss of filiform papillae. It can be concluded that the intraepithelial injection of Candidaalbicans on the dorsal rat tongue caused candidosis lesions in all the animals studied. C. albicans waspresent until seven days after the injections.Institute of Science and Technology of São José dos Campos2010-08-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.ict.unesp.br/index.php/cob/article/view/48410.14295/bds.2004.v7i2.484Brazilian Dental Science; Vol. 7 No. 2 (2004)Brazilian Dental Science; v. 7 n. 2 (2004)2178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPporhttps://ojs.ict.unesp.br/index.php/cob/article/view/484/405Junqueira, Juliana C.Vasconcellos, Luana M. R.Fernandes, Raquel G.Chaves, Maria G. A. M.Jorge, Antonio O. C.info:eu-repo/semantics/openAccess2018-08-30T09:13:00Zoai:ojs.pkp.sfu.ca:article/484Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2022-11-08T16:29:39.684899Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)true |
dc.title.none.fl_str_mv |
Experimental candidosis on rat’s tongue |
title |
Experimental candidosis on rat’s tongue |
spellingShingle |
Experimental candidosis on rat’s tongue Junqueira, Juliana C. |
title_short |
Experimental candidosis on rat’s tongue |
title_full |
Experimental candidosis on rat’s tongue |
title_fullStr |
Experimental candidosis on rat’s tongue |
title_full_unstemmed |
Experimental candidosis on rat’s tongue |
title_sort |
Experimental candidosis on rat’s tongue |
author |
Junqueira, Juliana C. |
author_facet |
Junqueira, Juliana C. Vasconcellos, Luana M. R. Fernandes, Raquel G. Chaves, Maria G. A. M. Jorge, Antonio O. C. |
author_role |
author |
author2 |
Vasconcellos, Luana M. R. Fernandes, Raquel G. Chaves, Maria G. A. M. Jorge, Antonio O. C. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Junqueira, Juliana C. Vasconcellos, Luana M. R. Fernandes, Raquel G. Chaves, Maria G. A. M. Jorge, Antonio O. C. |
description |
The purpose of this study was to evaluate the development of candidosis in rat’s tongue after intraepithelialinjections of Candida albicans. Fifty rats (Rattus norvegicus, Albinus, Wistar), originally negative for the Candidaspp. received ten intraepithelial injections of C. albicans on the dorsal tongue. Groups of five animals werekilled after 1, 2, 4, 6, 8, and 12 hours and 1, 2, 7, and 15 days after the injection. The rat’s tongues weresurgically removed and then macroscopic and microscopic analyses were performed. The development of candidosislesions was observed in all the rats studied. One hour after the injection, the development of germ tubesfrom the yeast cells could be observed. After 4 hours, Candida spp. pseudohyphae penetrated the epithelial cellswith the formation of microabscesses. After 24 to 48 hours, the epithelial areas with pseudohyphae invasionpresented desquamation, hyperplasia of the basal layer and discrete inflammation of the connective tissue. Afterseven days, few pseudohyphae could be observed. The epithelium presented acanthosis, hyperkeratosis and lossof filiform papillae. After 15 days, neither yeasts nor pseudohyphae were found. In some areas, the epitheliumpresented acanthosis and loss of filiform papillae. It can be concluded that the intraepithelial injection of Candidaalbicans on the dorsal rat tongue caused candidosis lesions in all the animals studied. C. albicans waspresent until seven days after the injections. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-08-18 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/484 10.14295/bds.2004.v7i2.484 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/484 |
identifier_str_mv |
10.14295/bds.2004.v7i2.484 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/484/405 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
dc.source.none.fl_str_mv |
Brazilian Dental Science; Vol. 7 No. 2 (2004) Brazilian Dental Science; v. 7 n. 2 (2004) 2178-6011 reponame:Brazilian Dental Science instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Brazilian Dental Science |
collection |
Brazilian Dental Science |
repository.name.fl_str_mv |
Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
repository.mail.fl_str_mv |
sergio@fosjc.unesp.br||sergio@fosjc.unesp.br |
_version_ |
1788346897531928576 |