Evaluation of quantitative polymerase chain reaction for the detection of Toxoplasma gondii oocysts shed by cats
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Parasitologia Veterinária (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612021000400306 |
Resumo: | Abstract Felines are definitive hosts of Toxoplasma gondii and can shed oocysts in their feces, contaminating the environment. Sporulated oocysts are highly resistant to the environment and have higher infectivity, which are attributed to many toxoplasmosis outbreaks. The aim of the present study was to evaluate a quantitative polymerase chain reaction (qPCR) technique for the detection of T. gondii oocysts shed by cats. Twelve cats from a previous vaccine experiment were challenged orally with 600 cysts of the TgDoveBr8 strain on day 72. Fecal samples were collected daily using the centrifugal flotation technique, with microscopic examination (Sheather technique) and qPCR for 20 days after the challenge. Cats from all groups shed oocysts in their feces. Five negative cats in the Sheather were positive according to qPCR on the 3rd day post-inoculation (dpi). Oocysts were detected on the 4th dpi using the Sheather; however, there was no statistical difference between the two methods (p=0.1116). In addition, there was no statistically significant difference in oocyst shedding between the groups according to the Sheather technique (p=0.6534) and qPCR (p=0.9670). In conclusion, these results demonstrate that qPCR can be used as an alternative to the Sheather to detect and quantify T. gondii oocysts. |
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Evaluation of quantitative polymerase chain reaction for the detection of Toxoplasma gondii oocysts shed by catsToxoplasmosisreal-time PCRSheatercatsAbstract Felines are definitive hosts of Toxoplasma gondii and can shed oocysts in their feces, contaminating the environment. Sporulated oocysts are highly resistant to the environment and have higher infectivity, which are attributed to many toxoplasmosis outbreaks. The aim of the present study was to evaluate a quantitative polymerase chain reaction (qPCR) technique for the detection of T. gondii oocysts shed by cats. Twelve cats from a previous vaccine experiment were challenged orally with 600 cysts of the TgDoveBr8 strain on day 72. Fecal samples were collected daily using the centrifugal flotation technique, with microscopic examination (Sheather technique) and qPCR for 20 days after the challenge. Cats from all groups shed oocysts in their feces. Five negative cats in the Sheather were positive according to qPCR on the 3rd day post-inoculation (dpi). Oocysts were detected on the 4th dpi using the Sheather; however, there was no statistical difference between the two methods (p=0.1116). In addition, there was no statistically significant difference in oocyst shedding between the groups according to the Sheather technique (p=0.6534) and qPCR (p=0.9670). In conclusion, these results demonstrate that qPCR can be used as an alternative to the Sheather to detect and quantify T. gondii oocysts.Colégio Brasileiro de Parasitologia Veterinária2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612021000400306Revista Brasileira de Parasitologia Veterinária v.30 n.4 2021reponame:Revista Brasileira de Parasitologia Veterinária (Online)instname:Colégio Brasileiro de Parasitologia Veterinária (CBPV)instacron:CBPV10.1590/s1984-29612021091info:eu-repo/semantics/openAccessMiura,Ana CarolinaBarros,Luiz Daniel deMinutti,Ana FláviaMartins,Thais AgostinhoSasse,João PedroNino,Beatriz de Souza LimaGarcia,João Luiseng2021-11-29T00:00:00Zoai:scielo:S1984-29612021000400306Revistahttp://www.scielo.br/scielo.php?script=sci_serial&lng=pt&pid=1984-2961https://old.scielo.br/oai/scielo-oai.php||zacariascbpv@fcav.unesp.br1984-29610103-846Xopendoar:2021-11-29T00:00Revista Brasileira de Parasitologia Veterinária (Online) - Colégio Brasileiro de Parasitologia Veterinária (CBPV)false |
dc.title.none.fl_str_mv |
Evaluation of quantitative polymerase chain reaction for the detection of Toxoplasma gondii oocysts shed by cats |
title |
Evaluation of quantitative polymerase chain reaction for the detection of Toxoplasma gondii oocysts shed by cats |
spellingShingle |
Evaluation of quantitative polymerase chain reaction for the detection of Toxoplasma gondii oocysts shed by cats Miura,Ana Carolina Toxoplasmosis real-time PCR Sheater cats |
title_short |
Evaluation of quantitative polymerase chain reaction for the detection of Toxoplasma gondii oocysts shed by cats |
title_full |
Evaluation of quantitative polymerase chain reaction for the detection of Toxoplasma gondii oocysts shed by cats |
title_fullStr |
Evaluation of quantitative polymerase chain reaction for the detection of Toxoplasma gondii oocysts shed by cats |
title_full_unstemmed |
Evaluation of quantitative polymerase chain reaction for the detection of Toxoplasma gondii oocysts shed by cats |
title_sort |
Evaluation of quantitative polymerase chain reaction for the detection of Toxoplasma gondii oocysts shed by cats |
author |
Miura,Ana Carolina |
author_facet |
Miura,Ana Carolina Barros,Luiz Daniel de Minutti,Ana Flávia Martins,Thais Agostinho Sasse,João Pedro Nino,Beatriz de Souza Lima Garcia,João Luis |
author_role |
author |
author2 |
Barros,Luiz Daniel de Minutti,Ana Flávia Martins,Thais Agostinho Sasse,João Pedro Nino,Beatriz de Souza Lima Garcia,João Luis |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Miura,Ana Carolina Barros,Luiz Daniel de Minutti,Ana Flávia Martins,Thais Agostinho Sasse,João Pedro Nino,Beatriz de Souza Lima Garcia,João Luis |
dc.subject.por.fl_str_mv |
Toxoplasmosis real-time PCR Sheater cats |
topic |
Toxoplasmosis real-time PCR Sheater cats |
description |
Abstract Felines are definitive hosts of Toxoplasma gondii and can shed oocysts in their feces, contaminating the environment. Sporulated oocysts are highly resistant to the environment and have higher infectivity, which are attributed to many toxoplasmosis outbreaks. The aim of the present study was to evaluate a quantitative polymerase chain reaction (qPCR) technique for the detection of T. gondii oocysts shed by cats. Twelve cats from a previous vaccine experiment were challenged orally with 600 cysts of the TgDoveBr8 strain on day 72. Fecal samples were collected daily using the centrifugal flotation technique, with microscopic examination (Sheather technique) and qPCR for 20 days after the challenge. Cats from all groups shed oocysts in their feces. Five negative cats in the Sheather were positive according to qPCR on the 3rd day post-inoculation (dpi). Oocysts were detected on the 4th dpi using the Sheather; however, there was no statistical difference between the two methods (p=0.1116). In addition, there was no statistically significant difference in oocyst shedding between the groups according to the Sheather technique (p=0.6534) and qPCR (p=0.9670). In conclusion, these results demonstrate that qPCR can be used as an alternative to the Sheather to detect and quantify T. gondii oocysts. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
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=S1984-29612021000400306 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612021000400306 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1984-29612021091 |
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 |
Colégio Brasileiro de Parasitologia Veterinária |
publisher.none.fl_str_mv |
Colégio Brasileiro de Parasitologia Veterinária |
dc.source.none.fl_str_mv |
Revista Brasileira de Parasitologia Veterinária v.30 n.4 2021 reponame:Revista Brasileira de Parasitologia Veterinária (Online) instname:Colégio Brasileiro de Parasitologia Veterinária (CBPV) instacron:CBPV |
instname_str |
Colégio Brasileiro de Parasitologia Veterinária (CBPV) |
instacron_str |
CBPV |
institution |
CBPV |
reponame_str |
Revista Brasileira de Parasitologia Veterinária (Online) |
collection |
Revista Brasileira de Parasitologia Veterinária (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Parasitologia Veterinária (Online) - Colégio Brasileiro de Parasitologia Veterinária (CBPV) |
repository.mail.fl_str_mv |
||zacariascbpv@fcav.unesp.br |
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1754208919242145792 |