Trichological analysis of guard hairs of Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) applied to research and identification in food

Detalhes bibliográficos
Autor(a) principal: Iara Aquino, Cinthia
Data de Publicação: 2022
Outros Autores: Quadros, Juliana
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Vigilância Sanitária em Debate
Texto Completo: https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/2009
Resumo: Introduction: Rodents are among the most important pests in the world and when these individuals or their fur are found in food, they are considered foreign matter indicative of health risk. On the other hand, the presence of human and other mammalian hair is considered indicative of failures in good practices. Thus, the characterization of the hairof synanthropic rodents and its differentiation from other mammal species are relevant and necessary. Objective: To characterize the microstructural patterns of guard hairs of the three main species of rodents that infest food storage environments and to present a proposal for a protocol for the trichological analysis of isolated hairs. Method: Hair samples were plucked from collected specimens of the rodent species Mus musculus, Rattus rattus and Rattus norvegicus. Intact guard hairs were selected for the preparation of slides for observation of the  microstructure. In total, 20 guard hairs were analyzed for the characterization of medullary patterns and 91 guard hair cuticular impressions were examined for the characterization of cuticularpatterns. Results: It was observed that M. musculus presented alveolar medulla and losangic cuticle with variations in the shape and size of the scales. R. rattus and R. norvegicus presented reticulated medulla and losangic cuticle, also with variations. A protocol with an identification fluxogram was presented for the analysis of the studied hairs. Conclusions: The hairs of the studied synanthropic rodent species can be differentiated from other mammalian species of health interest by the presence of alveolar and reticulated medullary patterns in the guard hair shield. For the studied species, only the medullary pattern of the guard hair shield confers a diagnostic character.
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spelling Trichological analysis of guard hairs of Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) applied to research and identification in foodAnálisis tricológico aplicado a la identificación de pelos de guardia de Mus musculus, Rattus rattus y Rattus norvegicus (Rodentia: Muridae) contaminantes de alimentosAnálise tricológica de pelos-guarda de Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) aplicada à pesquisa e à identificação em alimentosControle Sanitário de AlimentosMatérias EstranhasSujidades LevesRisco à Saúde HumanaRoedores SinantrópicosAnálise tricológicaFood InspectionForeign MatterLight FilthHealth RiskSynanthropic RodentsTrichological analysisIntroduction: Rodents are among the most important pests in the world and when these individuals or their fur are found in food, they are considered foreign matter indicative of health risk. On the other hand, the presence of human and other mammalian hair is considered indicative of failures in good practices. Thus, the characterization of the hairof synanthropic rodents and its differentiation from other mammal species are relevant and necessary. Objective: To characterize the microstructural patterns of guard hairs of the three main species of rodents that infest food storage environments and to present a proposal for a protocol for the trichological analysis of isolated hairs. Method: Hair samples were plucked from collected specimens of the rodent species Mus musculus, Rattus rattus and Rattus norvegicus. Intact guard hairs were selected for the preparation of slides for observation of the  microstructure. In total, 20 guard hairs were analyzed for the characterization of medullary patterns and 91 guard hair cuticular impressions were examined for the characterization of cuticularpatterns. Results: It was observed that M. musculus presented alveolar medulla and losangic cuticle with variations in the shape and size of the scales. R. rattus and R. norvegicus presented reticulated medulla and losangic cuticle, also with variations. A protocol with an identification fluxogram was presented for the analysis of the studied hairs. Conclusions: The hairs of the studied synanthropic rodent species can be differentiated from other mammalian species of health interest by the presence of alveolar and reticulated medullary patterns in the guard hair shield. For the studied species, only the medullary pattern of the guard hair shield confers a diagnostic character.Introdução: Roedores estão entre as mais importantes pragas do mundo e, quando estes indivíduos ou seus pelos são encontrados nos alimentos, são considerados matérias estranhas indicativas de risco à saúde. Por outro lado, a presença de pelos humanos e dos demais mamíferos é considerada indicativa de falhas das boas práticas. Sendo assim, a caracterização dos pelos dos roedores sinantrópicos e a diferenciação dos pelos das demais espécies de mamíferos mostram-se relevantes e necessárias. Objetivo: Caracterizar os padrões microestruturais dos pelos-guarda das três principais espécies de roedores que infestam ambientes de armazenamento de alimentos e apresentar uma proposta de protocolo para análise tricológica de pelos isolados. Método: Amostras de pelos de roedores das espécies Mus musculus, Rattus rattus e Rattus norvegicus foram coletadas de espécimes colecionados e pelos-guarda íntegros foram selecionados para a preparação de lâminas para observação da microestrutura. No total, 20 pelos-guarda foram analisados para caracterização dos padrões medulares e 91 impressões cuticulares de pelos-guarda foram examinadas para caracterização de padrões cuticulares. Resultados: Observou-se que M. musculus apresentou medula alveolar e cutícula losângica com variações na forma e tamanho das escamas. R. rattus e R. norvegicus apresentaram medula reticulada e cutícula losângica, também com variações. Um protocolo com fluxograma de identificação foi apresentado para a análise dos pelos estudados. Conclusões: Os pelos das espécies de roedores sinantrópicos estudados podem ser diferenciados das demais espécies de mamíferos de interesse sanitário pela presença dos padrões medulares alveolar e reticulado no escudo de pelos-guarda. Para as espécies estudadas, somente o padrão medular do escudo dos pelos-guarda confere caráter diagnóstico.  Instituto Nacional de Controle de Qualidade em Saúde2022-05-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Peer-reviewed article""Artículo revisado por pares""Artigo avaliado pelos pares"application/pdfapplication/pdfhttps://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/200910.22239/2317-269x.02009Health Surveillance under Debate: Society, Science & Technology ; Vol. 10 No. 2 (2022): May; 42-49Vigilancia en Salud en Debate: Sociedad, Ciencia y Tecnología; Vol. 10 Núm. 2 (2022): Puede; 42-49Vigil Sanit Debate, Rio de Janeiro; v. 10 n. 2 (2022): Maio; 42-492317-269Xreponame:Vigilância Sanitária em Debateinstname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZporenghttps://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/2009/1398https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/2009/1631Copyright (c) 2022 Vigilância Sanitária em Debate: Sociedade, Ciência & Tecnologiahttps://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessIara Aquino, Cinthia Quadros, Juliana2024-03-13T14:19:30Zoai:ojs.visaemdebate.incqs.fiocruz.br:article/2009Revistahttps://visaemdebate.incqs.fiocruz.br/index.php/visaemdebatePUBhttps://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/oaiincqs.visaemdebate@fiocruz.br || gisele.neves@fiocruz.br2317-269X2317-269Xopendoar:2024-03-13T14:19:30Vigilância Sanitária em Debate - Fundação Oswaldo Cruz (FIOCRUZ)false
dc.title.none.fl_str_mv Trichological analysis of guard hairs of Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) applied to research and identification in food
Análisis tricológico aplicado a la identificación de pelos de guardia de Mus musculus, Rattus rattus y Rattus norvegicus (Rodentia: Muridae) contaminantes de alimentos
Análise tricológica de pelos-guarda de Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) aplicada à pesquisa e à identificação em alimentos
title Trichological analysis of guard hairs of Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) applied to research and identification in food
spellingShingle Trichological analysis of guard hairs of Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) applied to research and identification in food
Iara Aquino, Cinthia
Controle Sanitário de Alimentos
Matérias Estranhas
Sujidades Leves
Risco à Saúde Humana
Roedores Sinantrópicos
Análise tricológica
Food Inspection
Foreign Matter
Light Filth
Health Risk
Synanthropic Rodents
Trichological analysis
title_short Trichological analysis of guard hairs of Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) applied to research and identification in food
title_full Trichological analysis of guard hairs of Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) applied to research and identification in food
title_fullStr Trichological analysis of guard hairs of Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) applied to research and identification in food
title_full_unstemmed Trichological analysis of guard hairs of Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) applied to research and identification in food
title_sort Trichological analysis of guard hairs of Mus musculus, Rattus rattus e Rattus norvegicus (Rodentia: Muridae) applied to research and identification in food
author Iara Aquino, Cinthia
author_facet Iara Aquino, Cinthia
Quadros, Juliana
author_role author
author2 Quadros, Juliana
author2_role author
dc.contributor.author.fl_str_mv Iara Aquino, Cinthia
Quadros, Juliana
dc.subject.por.fl_str_mv Controle Sanitário de Alimentos
Matérias Estranhas
Sujidades Leves
Risco à Saúde Humana
Roedores Sinantrópicos
Análise tricológica
Food Inspection
Foreign Matter
Light Filth
Health Risk
Synanthropic Rodents
Trichological analysis
topic Controle Sanitário de Alimentos
Matérias Estranhas
Sujidades Leves
Risco à Saúde Humana
Roedores Sinantrópicos
Análise tricológica
Food Inspection
Foreign Matter
Light Filth
Health Risk
Synanthropic Rodents
Trichological analysis
description Introduction: Rodents are among the most important pests in the world and when these individuals or their fur are found in food, they are considered foreign matter indicative of health risk. On the other hand, the presence of human and other mammalian hair is considered indicative of failures in good practices. Thus, the characterization of the hairof synanthropic rodents and its differentiation from other mammal species are relevant and necessary. Objective: To characterize the microstructural patterns of guard hairs of the three main species of rodents that infest food storage environments and to present a proposal for a protocol for the trichological analysis of isolated hairs. Method: Hair samples were plucked from collected specimens of the rodent species Mus musculus, Rattus rattus and Rattus norvegicus. Intact guard hairs were selected for the preparation of slides for observation of the  microstructure. In total, 20 guard hairs were analyzed for the characterization of medullary patterns and 91 guard hair cuticular impressions were examined for the characterization of cuticularpatterns. Results: It was observed that M. musculus presented alveolar medulla and losangic cuticle with variations in the shape and size of the scales. R. rattus and R. norvegicus presented reticulated medulla and losangic cuticle, also with variations. A protocol with an identification fluxogram was presented for the analysis of the studied hairs. Conclusions: The hairs of the studied synanthropic rodent species can be differentiated from other mammalian species of health interest by the presence of alveolar and reticulated medullary patterns in the guard hair shield. For the studied species, only the medullary pattern of the guard hair shield confers a diagnostic character.
publishDate 2022
dc.date.none.fl_str_mv 2022-05-31
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
"Peer-reviewed article"
"Artículo revisado por pares"
"Artigo avaliado pelos pares"
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/2009
10.22239/2317-269x.02009
url https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/2009
identifier_str_mv 10.22239/2317-269x.02009
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/2009/1398
https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/2009/1631
dc.rights.driver.fl_str_mv Copyright (c) 2022 Vigilância Sanitária em Debate: Sociedade, Ciência & Tecnologia
https://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 Vigilância Sanitária em Debate: Sociedade, Ciência & Tecnologia
https://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Instituto Nacional de Controle de Qualidade em Saúde
publisher.none.fl_str_mv Instituto Nacional de Controle de Qualidade em Saúde
dc.source.none.fl_str_mv Health Surveillance under Debate: Society, Science & Technology ; Vol. 10 No. 2 (2022): May; 42-49
Vigilancia en Salud en Debate: Sociedad, Ciencia y Tecnología; Vol. 10 Núm. 2 (2022): Puede; 42-49
Vigil Sanit Debate, Rio de Janeiro; v. 10 n. 2 (2022): Maio; 42-49
2317-269X
reponame:Vigilância Sanitária em Debate
instname:Fundação Oswaldo Cruz (FIOCRUZ)
instacron:FIOCRUZ
instname_str Fundação Oswaldo Cruz (FIOCRUZ)
instacron_str FIOCRUZ
institution FIOCRUZ
reponame_str Vigilância Sanitária em Debate
collection Vigilância Sanitária em Debate
repository.name.fl_str_mv Vigilância Sanitária em Debate - Fundação Oswaldo Cruz (FIOCRUZ)
repository.mail.fl_str_mv incqs.visaemdebate@fiocruz.br || gisele.neves@fiocruz.br
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