A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (Schrank,1788) em camundongos
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| Data de Publicação: | 2011 |
| Tipo de documento: | Dissertação |
| Idioma: | por |
| Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRRJ |
| Texto Completo: | https://tede.ufrrj.br/jspui/handle/jspui/3810 |
Resumo: | The Toxocara cati is one of the major intestinal parasites of cats and has great importance in public health as zoonotic agent of Visceral and Ocular Larva Migrans in humans. Studies to eliminate the infectious forms of this helminths are scarce. The aim of this study was to evaluate the action of various disinfectant solutions on the development of eggs of T. cati viability and infectivity of larvae present in the eggs of this parasite. Eggs were obtained from the dissection of female T. cati, recovered from infected cats. These were suspended in distilled water and divided into five groups with six replicates, each with about 3300 eggs. Each group was exposed for one hour at one of four selected commercial disinfectants and a control, and then washed with distilled water for removal of disinfectant solutions. All samples were assessed for development of eggs on days 0, +3, +6, +9, +12, +15, +18, +21 and +24. At the end of the observation period, 30 mice were infected with the samples. After 15 days the mice were euthanized and the brain, liver, lungs and kidneys, and carcass, macro-and microscopically observed. From day +6 eggs exposed to different treatments showed larva inside. And even after 24 days of exposure, the disinfectants were not able to inhibit the development or eliminate the larvae. The number of larvae recovered from infected mice showed that migration was observed in all animals. The carcass showed better recovery between the tissues analyzed. In no animal treated larvae were seen in the brain. No disinfectant used was able to inhibit embryogenesis of eggs of T. cati after one hour of exposure. The degree of infectivity and the migration pattern of the larvae was maintained even after treatment with disinfectants |
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Scott, Fabio Barbour00138216797http://lattes.cnpq.br/1217253540572819Scott, Fabio BarbourTancredi, Ian PhilippoMartins, Isabella Vilhena Freire09801343745xxxxxxxxxxxxxxxxxTavares, Pedro Vianna2020-08-13T14:11:27Z2011-03-30TAVARES, Pedro Vianna. A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (SCHRANK, 1788) em camundongos. 2011. 38 f. Disserta??o (Mestrado em Ci?ncias Veterin?rias) - Instituto de Veterin?ria, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2011.https://tede.ufrrj.br/jspui/handle/jspui/3810The Toxocara cati is one of the major intestinal parasites of cats and has great importance in public health as zoonotic agent of Visceral and Ocular Larva Migrans in humans. Studies to eliminate the infectious forms of this helminths are scarce. The aim of this study was to evaluate the action of various disinfectant solutions on the development of eggs of T. cati viability and infectivity of larvae present in the eggs of this parasite. Eggs were obtained from the dissection of female T. cati, recovered from infected cats. These were suspended in distilled water and divided into five groups with six replicates, each with about 3300 eggs. Each group was exposed for one hour at one of four selected commercial disinfectants and a control, and then washed with distilled water for removal of disinfectant solutions. All samples were assessed for development of eggs on days 0, +3, +6, +9, +12, +15, +18, +21 and +24. At the end of the observation period, 30 mice were infected with the samples. After 15 days the mice were euthanized and the brain, liver, lungs and kidneys, and carcass, macro-and microscopically observed. From day +6 eggs exposed to different treatments showed larva inside. And even after 24 days of exposure, the disinfectants were not able to inhibit the development or eliminate the larvae. The number of larvae recovered from infected mice showed that migration was observed in all animals. The carcass showed better recovery between the tissues analyzed. In no animal treated larvae were seen in the brain. No disinfectant used was able to inhibit embryogenesis of eggs of T. cati after one hour of exposure. The degree of infectivity and the migration pattern of the larvae was maintained even after treatment with disinfectantsO Toxocara cati ? um dos principais parasitos intestinais de gatos e exerce grande import?ncia em sa?de p?blica sendo agente zoon?tico da Larva Migrans Visceral e Ocular em humanos. Estudos para eliminar as formas infectantes deste helminto s?o escassos. O objetivo do presente estudo foi avaliar a a??o de diferentes solu??es desinfetantes sobre o desenvolvimento de ovos de T. cati e a viabilidade e infectividade de larvas presentes em ovos deste parasito. Os ovos foram obtidos a partir da disseca??o de f?meas de T. cati, recuperadas de gatos comprovadamente infectados. Estes foram suspensos em ?gua destilada e divididos em cinco grupos com seis repeti??es, cada qual com aproximadamente 3300 ovos. Cada grupo foi exposto por uma hora, a um dos quatro desinfetantes comerciais selecionados e um controle, e em seguida lavados com ?gua destilada para elimina??o das solu??es desinfetantes. Todas as amostras foram avaliadas quanto ao desenvolvimento dos ovos, atrav?s de al?quotas de 25?L observadas em microsc?pio ?ptico, nos dias 0, +3, +6, +9, +12, +15, +18, +21 e +24. Ao final do per?odo de observa??o, 30 camundongos foram infectados com as amostras obtidas. Ap?s 15 dias os camundongos foram eutanasiados e o c?rebro, f?gado, pulm?es e rins, al?m da carca?a, observados macro e microscopicamente. A partir do dia +6 os ovos expostos aos diferentes tratamentos apresentaram larva no seu interior. E mesmo na avalia??o do dia +24, os desinfetantes n?o foram capazes de inibir o desenvolvimento ou eliminar as larvas. O n?mero das larvas recuperadas dos camundongos infectados demonstrou que houve migra??o larvar em todos os animais. O tecido que apresentou melhor recupera??o entre os grupos foi a carca?a. Em nenhum animal tratado foram visualizadas larvas no c?rebro. Nenhum desinfetante utilizado foi capaz de inibir a embriog?nese dos ovos de T. cati ap?s uma hora de exposi??o aos produtos. O potencial de infectividade e o padr?o de migra??o das larvas foi mantido mesmo ap?s o tratamento com os desinfetantes.Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2020-08-13T14:11:27Z No. of bitstreams: 1 2011 - Pedro Vianna Tavares.pdf: 6588777 bytes, checksum: c75bd1ce0f1b025bc63a9bf81e790517 (MD5)Made available in DSpace on 2020-08-13T14:11:27Z (GMT). No. of bitstreams: 1 2011 - Pedro Vianna Tavares.pdf: 6588777 bytes, checksum: c75bd1ce0f1b025bc63a9bf81e790517 (MD5) Previous issue date: 2011-03-30Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPqapplication/pdfhttps://tede.ufrrj.br/retrieve/61578/2011%20-%20Pedro%20Vianna%20Tavares.pdf.jpgporUniversidade Federal Rural do Rio de JaneiroPrograma de P?s-Gradua??o em Ci?ncias Veterin?riasUFRRJBrasilInstituto de Veterin?riaABOUGRAIN, A. K.; NAHAISI, M. H.; MADI, N. S.; SAIED, M. M.; GHENGHESH, K. S. Parasitological contamination in salad vegetables in Tripoli-Libya. Food Control, v.21, p.760-762, 2010. 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| dc.title.por.fl_str_mv |
A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (Schrank,1788) em camundongos |
| dc.title.alternative.eng.fl_str_mv |
Action of different disinfectants on the viability and development of eggs and in the migration of larvae of Toxocara cati (Schrank, 1788) in mice |
| title |
A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (Schrank,1788) em camundongos |
| spellingShingle |
A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (Schrank,1788) em camundongos Tavares, Pedro Vianna Desinfetantes Toxocara cati desenvolvimento Disinfectants Toxocara cati development Medicina Veterin?ria |
| title_short |
A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (Schrank,1788) em camundongos |
| title_full |
A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (Schrank,1788) em camundongos |
| title_fullStr |
A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (Schrank,1788) em camundongos |
| title_full_unstemmed |
A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (Schrank,1788) em camundongos |
| title_sort |
A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (Schrank,1788) em camundongos |
| author |
Tavares, Pedro Vianna |
| author_facet |
Tavares, Pedro Vianna |
| author_role |
author |
| dc.contributor.advisor1.fl_str_mv |
Scott, Fabio Barbour |
| dc.contributor.advisor1ID.fl_str_mv |
00138216797 |
| dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/1217253540572819 |
| dc.contributor.referee1.fl_str_mv |
Scott, Fabio Barbour |
| dc.contributor.referee2.fl_str_mv |
Tancredi, Ian Philippo |
| dc.contributor.referee3.fl_str_mv |
Martins, Isabella Vilhena Freire |
| dc.contributor.authorID.fl_str_mv |
09801343745 |
| dc.contributor.authorLattes.fl_str_mv |
xxxxxxxxxxxxxxxxx |
| dc.contributor.author.fl_str_mv |
Tavares, Pedro Vianna |
| contributor_str_mv |
Scott, Fabio Barbour Scott, Fabio Barbour Tancredi, Ian Philippo Martins, Isabella Vilhena Freire |
| dc.subject.por.fl_str_mv |
Desinfetantes Toxocara cati desenvolvimento |
| topic |
Desinfetantes Toxocara cati desenvolvimento Disinfectants Toxocara cati development Medicina Veterin?ria |
| dc.subject.eng.fl_str_mv |
Disinfectants Toxocara cati development |
| dc.subject.cnpq.fl_str_mv |
Medicina Veterin?ria |
| description |
The Toxocara cati is one of the major intestinal parasites of cats and has great importance in public health as zoonotic agent of Visceral and Ocular Larva Migrans in humans. Studies to eliminate the infectious forms of this helminths are scarce. The aim of this study was to evaluate the action of various disinfectant solutions on the development of eggs of T. cati viability and infectivity of larvae present in the eggs of this parasite. Eggs were obtained from the dissection of female T. cati, recovered from infected cats. These were suspended in distilled water and divided into five groups with six replicates, each with about 3300 eggs. Each group was exposed for one hour at one of four selected commercial disinfectants and a control, and then washed with distilled water for removal of disinfectant solutions. All samples were assessed for development of eggs on days 0, +3, +6, +9, +12, +15, +18, +21 and +24. At the end of the observation period, 30 mice were infected with the samples. After 15 days the mice were euthanized and the brain, liver, lungs and kidneys, and carcass, macro-and microscopically observed. From day +6 eggs exposed to different treatments showed larva inside. And even after 24 days of exposure, the disinfectants were not able to inhibit the development or eliminate the larvae. The number of larvae recovered from infected mice showed that migration was observed in all animals. The carcass showed better recovery between the tissues analyzed. In no animal treated larvae were seen in the brain. No disinfectant used was able to inhibit embryogenesis of eggs of T. cati after one hour of exposure. The degree of infectivity and the migration pattern of the larvae was maintained even after treatment with disinfectants |
| publishDate |
2011 |
| dc.date.issued.fl_str_mv |
2011-03-30 |
| dc.date.accessioned.fl_str_mv |
2020-08-13T14:11:27Z |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
| format |
masterThesis |
| status_str |
publishedVersion |
| dc.identifier.citation.fl_str_mv |
TAVARES, Pedro Vianna. A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (SCHRANK, 1788) em camundongos. 2011. 38 f. Disserta??o (Mestrado em Ci?ncias Veterin?rias) - Instituto de Veterin?ria, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2011. |
| dc.identifier.uri.fl_str_mv |
https://tede.ufrrj.br/jspui/handle/jspui/3810 |
| identifier_str_mv |
TAVARES, Pedro Vianna. A??o de diferentes desinfetantes na viabilidade e desenvolvimento de ovos e na migra??o larvar de Toxocara cati (SCHRANK, 1788) em camundongos. 2011. 38 f. Disserta??o (Mestrado em Ci?ncias Veterin?rias) - Instituto de Veterin?ria, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2011. |
| url |
https://tede.ufrrj.br/jspui/handle/jspui/3810 |
| dc.language.iso.fl_str_mv |
por |
| language |
por |
| dc.relation.references.por.fl_str_mv |
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