Biocompatibility of a chlorhexidine local delivery system in a subcutaneous mouse model
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.4317/medoral.16.e278 http://hdl.handle.net/11449/22734 |
Resumo: | Objective: This study aimed evaluating histologically and histomorphometrically the response of the conjunctive tissue face to the implant of chlorhexidine chips in the subcutaneous tissues of rats. Study Design: In this research 35 male rats Wistar were used to analyze the biocompatibility and the degradation process of chlorhexidine chip. In each animal, it was made 2 incisions for subcutaneous implantation of chlorhexidine chip (test group) and a polytetrafluorethylene membrane (control group). The morphological changes in subcutaneous implantations were assessed after 1, 3, 5, 7, 10, 14, 21 days. The data were submitted to Friedman nonparametric test to analyze the comparisons among observation periods and to allow the comparison among groups. Results: Differences were found in the analysis of the inflammatory response when comparing the tested materials (p values <= 0.05). In test group was observed hemorrhage, edema and intense inflammatory infiltrate predominantly neutrophilic around material. From 3-day and subsequent periods was verified granulation tissue externally at this infiltrate. From 10-day on was observed crescent area of degradation of chlorhexidine chip, associated with neutrophilic and macrophagic infiltrate, that maintained until 21-day. In the control group, moderate inflammatory infiltrate was observed initially, predominantly polymorphonuclear, edema and granulation tissue 3-day period. The inflammatory infiltrate was gradually replaced for granulation tissue, culminating in a fibrous capsule. Giant multinucleate cells situated at contact interface with the coating was examined since 3-day and persisted until 21-day. Conclusion: The chlorhexidine chip induces an intense acute inflammatory response at subcutaneous tissue of rats. Therefore, at conditions of this study was not biocompatible. |
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Biocompatibility of a chlorhexidine local delivery system in a subcutaneous mouse modelBiocompatibilitychlorhexidine toxicitydrug delivery systemperiodontitisObjective: This study aimed evaluating histologically and histomorphometrically the response of the conjunctive tissue face to the implant of chlorhexidine chips in the subcutaneous tissues of rats. Study Design: In this research 35 male rats Wistar were used to analyze the biocompatibility and the degradation process of chlorhexidine chip. In each animal, it was made 2 incisions for subcutaneous implantation of chlorhexidine chip (test group) and a polytetrafluorethylene membrane (control group). The morphological changes in subcutaneous implantations were assessed after 1, 3, 5, 7, 10, 14, 21 days. The data were submitted to Friedman nonparametric test to analyze the comparisons among observation periods and to allow the comparison among groups. Results: Differences were found in the analysis of the inflammatory response when comparing the tested materials (p values <= 0.05). In test group was observed hemorrhage, edema and intense inflammatory infiltrate predominantly neutrophilic around material. From 3-day and subsequent periods was verified granulation tissue externally at this infiltrate. From 10-day on was observed crescent area of degradation of chlorhexidine chip, associated with neutrophilic and macrophagic infiltrate, that maintained until 21-day. In the control group, moderate inflammatory infiltrate was observed initially, predominantly polymorphonuclear, edema and granulation tissue 3-day period. The inflammatory infiltrate was gradually replaced for granulation tissue, culminating in a fibrous capsule. Giant multinucleate cells situated at contact interface with the coating was examined since 3-day and persisted until 21-day. Conclusion: The chlorhexidine chip induces an intense acute inflammatory response at subcutaneous tissue of rats. Therefore, at conditions of this study was not biocompatible.São Paulo State Univ, Sao Jose dos Campos Dent Sch, Dept Diag & Surg, UNESP,Biosci Ctr Special Hlth Care Needs CEBAPE, BR-12245000 Sao Jose Dos Campos, SP, BrazilSão Paulo State Univ, Sao Jose dos Campos Dent Sch, UNESP, Dept Dent Mat & Prosthesis, BR-12245000 Sao Jose Dos Campos, SP, BrazilSão Paulo State Univ, Sao Jose dos Campos Dent Sch, UNESP, Periodont Div,Dept Diag & Surg, BR-12245000 Sao Jose Dos Campos, SP, BrazilSão Paulo State Univ, Sao Jose dos Campos Dent Sch, Dept Diag & Surg, UNESP,Biosci Ctr Special Hlth Care Needs CEBAPE, BR-12245000 Sao Jose Dos Campos, SP, BrazilSão Paulo State Univ, Sao Jose dos Campos Dent Sch, UNESP, Dept Dent Mat & Prosthesis, BR-12245000 Sao Jose Dos Campos, SP, BrazilSão Paulo State Univ, Sao Jose dos Campos Dent Sch, UNESP, Periodont Div,Dept Diag & Surg, BR-12245000 Sao Jose Dos Campos, SP, BrazilMedicina Oral S LUniversidade Estadual Paulista (Unesp)Monteiro, Adriana-Socorro-Ferreira [UNESP]Macedo, Luis-Guilherme-Scavone [UNESP]Macedo, Nelson-Luiz [UNESP]Feitosa, Fernanda-AlvesToyoshima, Thiago [UNESP]2014-05-20T14:04:50Z2014-05-20T14:04:50Z2011-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleE278-E284http://dx.doi.org/10.4317/medoral.16.e278Medicina Oral Patologia Oral Y Cirugia Bucal. Valencia: Medicina Oral S L, v. 16, n. 2, p. E278-E284, 2011.1698-4447http://hdl.handle.net/11449/2273410.4317/medoral.16.e278WOS:000288682100027Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMedicina Oral Patologia Oral y Cirugia Bucal0,841info:eu-repo/semantics/openAccess2021-10-22T19:03:41Zoai:repositorio.unesp.br:11449/22734Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:29:14.919404Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Biocompatibility of a chlorhexidine local delivery system in a subcutaneous mouse model |
title |
Biocompatibility of a chlorhexidine local delivery system in a subcutaneous mouse model |
spellingShingle |
Biocompatibility of a chlorhexidine local delivery system in a subcutaneous mouse model Monteiro, Adriana-Socorro-Ferreira [UNESP] Biocompatibility chlorhexidine toxicity drug delivery system periodontitis |
title_short |
Biocompatibility of a chlorhexidine local delivery system in a subcutaneous mouse model |
title_full |
Biocompatibility of a chlorhexidine local delivery system in a subcutaneous mouse model |
title_fullStr |
Biocompatibility of a chlorhexidine local delivery system in a subcutaneous mouse model |
title_full_unstemmed |
Biocompatibility of a chlorhexidine local delivery system in a subcutaneous mouse model |
title_sort |
Biocompatibility of a chlorhexidine local delivery system in a subcutaneous mouse model |
author |
Monteiro, Adriana-Socorro-Ferreira [UNESP] |
author_facet |
Monteiro, Adriana-Socorro-Ferreira [UNESP] Macedo, Luis-Guilherme-Scavone [UNESP] Macedo, Nelson-Luiz [UNESP] Feitosa, Fernanda-Alves Toyoshima, Thiago [UNESP] |
author_role |
author |
author2 |
Macedo, Luis-Guilherme-Scavone [UNESP] Macedo, Nelson-Luiz [UNESP] Feitosa, Fernanda-Alves Toyoshima, Thiago [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Monteiro, Adriana-Socorro-Ferreira [UNESP] Macedo, Luis-Guilherme-Scavone [UNESP] Macedo, Nelson-Luiz [UNESP] Feitosa, Fernanda-Alves Toyoshima, Thiago [UNESP] |
dc.subject.por.fl_str_mv |
Biocompatibility chlorhexidine toxicity drug delivery system periodontitis |
topic |
Biocompatibility chlorhexidine toxicity drug delivery system periodontitis |
description |
Objective: This study aimed evaluating histologically and histomorphometrically the response of the conjunctive tissue face to the implant of chlorhexidine chips in the subcutaneous tissues of rats. Study Design: In this research 35 male rats Wistar were used to analyze the biocompatibility and the degradation process of chlorhexidine chip. In each animal, it was made 2 incisions for subcutaneous implantation of chlorhexidine chip (test group) and a polytetrafluorethylene membrane (control group). The morphological changes in subcutaneous implantations were assessed after 1, 3, 5, 7, 10, 14, 21 days. The data were submitted to Friedman nonparametric test to analyze the comparisons among observation periods and to allow the comparison among groups. Results: Differences were found in the analysis of the inflammatory response when comparing the tested materials (p values <= 0.05). In test group was observed hemorrhage, edema and intense inflammatory infiltrate predominantly neutrophilic around material. From 3-day and subsequent periods was verified granulation tissue externally at this infiltrate. From 10-day on was observed crescent area of degradation of chlorhexidine chip, associated with neutrophilic and macrophagic infiltrate, that maintained until 21-day. In the control group, moderate inflammatory infiltrate was observed initially, predominantly polymorphonuclear, edema and granulation tissue 3-day period. The inflammatory infiltrate was gradually replaced for granulation tissue, culminating in a fibrous capsule. Giant multinucleate cells situated at contact interface with the coating was examined since 3-day and persisted until 21-day. Conclusion: The chlorhexidine chip induces an intense acute inflammatory response at subcutaneous tissue of rats. Therefore, at conditions of this study was not biocompatible. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-03-01 2014-05-20T14:04:50Z 2014-05-20T14:04:50Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.4317/medoral.16.e278 Medicina Oral Patologia Oral Y Cirugia Bucal. Valencia: Medicina Oral S L, v. 16, n. 2, p. E278-E284, 2011. 1698-4447 http://hdl.handle.net/11449/22734 10.4317/medoral.16.e278 WOS:000288682100027 |
url |
http://dx.doi.org/10.4317/medoral.16.e278 http://hdl.handle.net/11449/22734 |
identifier_str_mv |
Medicina Oral Patologia Oral Y Cirugia Bucal. Valencia: Medicina Oral S L, v. 16, n. 2, p. E278-E284, 2011. 1698-4447 10.4317/medoral.16.e278 WOS:000288682100027 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Medicina Oral Patologia Oral y Cirugia Bucal 0,841 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
E278-E284 |
dc.publisher.none.fl_str_mv |
Medicina Oral S L |
publisher.none.fl_str_mv |
Medicina Oral S L |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808129075780255744 |