Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection
- Autores
- Dellarupe, Andrea; Regidor Cerrillo, Javier; Jimenez Ruiz, Elena; Schares, Gereon; Unzaga, Juan Manuel; Venturini, María Cecilia; Ortega Mora, Luis M.
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We compared the clinical outcome and vertical transmission of six canine Neospora caninum isolates using a pregnant BALB/c model. Four of the isolates were obtained from oocysts of naturally infected dogs (Nc-Ger2, Nc-Ger3, Nc-Ger6 and Nc-6Arg) and two were from diseased dogs with neurological signs (Nc-Bahia and Nc-Liv). The dams were inoculated with 2×106 tachyzoites of each isolate at day 7 of pregnancy. Morbidity, mortality and the antibody responses were evaluated in both the dams and the offspring, as was parasite transmission to the progeny. The mortality rates varied from 100% in Nc-Bahia and Nc-Liv-infected pups to 19% or less for those infected with the isolates from oocysts. The vertical transmission rates varied from 9 to 53% for N. caninum from oocysts, compared with 100% for the Nc-Liv and Nc-Bahia isolates. All dams showed specific IgG responses against tachyzoite and rNc-GRA7 antigens, confirming Neospora infection. The highest IgG levels were detected in mice inoculated with the Nc-Liv and Nc-Bahia isolates. These results demonstrate marked differences in virulence between the N. caninum isolates obtained from oocysts and neurologically affected dogs. This variability could help us to explain the differences in the outcome of the infection in definitive and intermediate hosts.
Fil: Dellarupe, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Complutense de Madrid; España. Universidad Nacional de la Plata. Facultad de Ciencias Veterinarias. Departamento de Epizootiología y Salud Pública. Laboratorio de Inmunoparasitología; Argentina
Fil: Regidor Cerrillo, Javier. Universidad Complutense de Madrid; España
Fil: Jimenez Ruiz, Elena. Universidad Complutense de Madrid; España
Fil: Schares, Gereon. Friedrich Loeffler Institut; Alemania
Fil: Unzaga, Juan Manuel. Universidad Nacional de la Plata. Facultad de Ciencias Veterinarias. Departamento de Epizootiología y Salud Pública. Laboratorio de Inmunoparasitología; Argentina
Fil: Venturini, María Cecilia. Universidad Nacional de la Plata. Facultad de Ciencias Veterinarias. Departamento de Epizootiología y Salud Pública. Laboratorio de Inmunoparasitología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ortega Mora, Luis M.. Universidad Complutense de Madrid; España - Materia
-
N. Caninum
In Vivo
Vertical Transmission - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/31409
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Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infectionDellarupe, AndreaRegidor Cerrillo, JavierJimenez Ruiz, ElenaSchares, GereonUnzaga, Juan ManuelVenturini, María CeciliaOrtega Mora, Luis M.N. CaninumIn VivoVertical Transmissionhttps://purl.org/becyt/ford/4.3https://purl.org/becyt/ford/4We compared the clinical outcome and vertical transmission of six canine Neospora caninum isolates using a pregnant BALB/c model. Four of the isolates were obtained from oocysts of naturally infected dogs (Nc-Ger2, Nc-Ger3, Nc-Ger6 and Nc-6Arg) and two were from diseased dogs with neurological signs (Nc-Bahia and Nc-Liv). The dams were inoculated with 2×106 tachyzoites of each isolate at day 7 of pregnancy. Morbidity, mortality and the antibody responses were evaluated in both the dams and the offspring, as was parasite transmission to the progeny. The mortality rates varied from 100% in Nc-Bahia and Nc-Liv-infected pups to 19% or less for those infected with the isolates from oocysts. The vertical transmission rates varied from 9 to 53% for N. caninum from oocysts, compared with 100% for the Nc-Liv and Nc-Bahia isolates. All dams showed specific IgG responses against tachyzoite and rNc-GRA7 antigens, confirming Neospora infection. The highest IgG levels were detected in mice inoculated with the Nc-Liv and Nc-Bahia isolates. These results demonstrate marked differences in virulence between the N. caninum isolates obtained from oocysts and neurologically affected dogs. This variability could help us to explain the differences in the outcome of the infection in definitive and intermediate hosts.Fil: Dellarupe, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Complutense de Madrid; España. Universidad Nacional de la Plata. Facultad de Ciencias Veterinarias. Departamento de Epizootiología y Salud Pública. Laboratorio de Inmunoparasitología; ArgentinaFil: Regidor Cerrillo, Javier. Universidad Complutense de Madrid; EspañaFil: Jimenez Ruiz, Elena. Universidad Complutense de Madrid; EspañaFil: Schares, Gereon. Friedrich Loeffler Institut; AlemaniaFil: Unzaga, Juan Manuel. Universidad Nacional de la Plata. Facultad de Ciencias Veterinarias. Departamento de Epizootiología y Salud Pública. Laboratorio de Inmunoparasitología; ArgentinaFil: Venturini, María Cecilia. Universidad Nacional de la Plata. Facultad de Ciencias Veterinarias. Departamento de Epizootiología y Salud Pública. Laboratorio de Inmunoparasitología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ortega Mora, Luis M.. Universidad Complutense de Madrid; EspañaCambridge University Press2013-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31409Ortega Mora, Luis M.; Venturini, María Cecilia; Unzaga, Juan Manuel; Schares, Gereon; Jimenez Ruiz, Elena; Regidor Cerrillo, Javier; et al.; Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection; Cambridge University Press; Parasitology; 141; 3; 10-2013; 356-3660031-1820CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1017/S0031182013001479info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/parasitology/article/clinical-outcome-and-vertical-transmission-variability-among-canine-neospora-caninum-isolates-in-a-pregnant-mouse-model-of-infection/952DEFE4FBD93098AD855BD3B408492Finfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:05:10Zoai:ri.conicet.gov.ar:11336/31409instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:05:10.332CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection |
title |
Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection |
spellingShingle |
Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection Dellarupe, Andrea N. Caninum In Vivo Vertical Transmission |
title_short |
Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection |
title_full |
Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection |
title_fullStr |
Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection |
title_full_unstemmed |
Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection |
title_sort |
Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection |
dc.creator.none.fl_str_mv |
Dellarupe, Andrea Regidor Cerrillo, Javier Jimenez Ruiz, Elena Schares, Gereon Unzaga, Juan Manuel Venturini, María Cecilia Ortega Mora, Luis M. |
author |
Dellarupe, Andrea |
author_facet |
Dellarupe, Andrea Regidor Cerrillo, Javier Jimenez Ruiz, Elena Schares, Gereon Unzaga, Juan Manuel Venturini, María Cecilia Ortega Mora, Luis M. |
author_role |
author |
author2 |
Regidor Cerrillo, Javier Jimenez Ruiz, Elena Schares, Gereon Unzaga, Juan Manuel Venturini, María Cecilia Ortega Mora, Luis M. |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
N. Caninum In Vivo Vertical Transmission |
topic |
N. Caninum In Vivo Vertical Transmission |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/4.3 https://purl.org/becyt/ford/4 |
dc.description.none.fl_txt_mv |
We compared the clinical outcome and vertical transmission of six canine Neospora caninum isolates using a pregnant BALB/c model. Four of the isolates were obtained from oocysts of naturally infected dogs (Nc-Ger2, Nc-Ger3, Nc-Ger6 and Nc-6Arg) and two were from diseased dogs with neurological signs (Nc-Bahia and Nc-Liv). The dams were inoculated with 2×106 tachyzoites of each isolate at day 7 of pregnancy. Morbidity, mortality and the antibody responses were evaluated in both the dams and the offspring, as was parasite transmission to the progeny. The mortality rates varied from 100% in Nc-Bahia and Nc-Liv-infected pups to 19% or less for those infected with the isolates from oocysts. The vertical transmission rates varied from 9 to 53% for N. caninum from oocysts, compared with 100% for the Nc-Liv and Nc-Bahia isolates. All dams showed specific IgG responses against tachyzoite and rNc-GRA7 antigens, confirming Neospora infection. The highest IgG levels were detected in mice inoculated with the Nc-Liv and Nc-Bahia isolates. These results demonstrate marked differences in virulence between the N. caninum isolates obtained from oocysts and neurologically affected dogs. This variability could help us to explain the differences in the outcome of the infection in definitive and intermediate hosts. Fil: Dellarupe, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Complutense de Madrid; España. Universidad Nacional de la Plata. Facultad de Ciencias Veterinarias. Departamento de Epizootiología y Salud Pública. Laboratorio de Inmunoparasitología; Argentina Fil: Regidor Cerrillo, Javier. Universidad Complutense de Madrid; España Fil: Jimenez Ruiz, Elena. Universidad Complutense de Madrid; España Fil: Schares, Gereon. Friedrich Loeffler Institut; Alemania Fil: Unzaga, Juan Manuel. Universidad Nacional de la Plata. Facultad de Ciencias Veterinarias. Departamento de Epizootiología y Salud Pública. Laboratorio de Inmunoparasitología; Argentina Fil: Venturini, María Cecilia. Universidad Nacional de la Plata. Facultad de Ciencias Veterinarias. Departamento de Epizootiología y Salud Pública. Laboratorio de Inmunoparasitología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Ortega Mora, Luis M.. Universidad Complutense de Madrid; España |
description |
We compared the clinical outcome and vertical transmission of six canine Neospora caninum isolates using a pregnant BALB/c model. Four of the isolates were obtained from oocysts of naturally infected dogs (Nc-Ger2, Nc-Ger3, Nc-Ger6 and Nc-6Arg) and two were from diseased dogs with neurological signs (Nc-Bahia and Nc-Liv). The dams were inoculated with 2×106 tachyzoites of each isolate at day 7 of pregnancy. Morbidity, mortality and the antibody responses were evaluated in both the dams and the offspring, as was parasite transmission to the progeny. The mortality rates varied from 100% in Nc-Bahia and Nc-Liv-infected pups to 19% or less for those infected with the isolates from oocysts. The vertical transmission rates varied from 9 to 53% for N. caninum from oocysts, compared with 100% for the Nc-Liv and Nc-Bahia isolates. All dams showed specific IgG responses against tachyzoite and rNc-GRA7 antigens, confirming Neospora infection. The highest IgG levels were detected in mice inoculated with the Nc-Liv and Nc-Bahia isolates. These results demonstrate marked differences in virulence between the N. caninum isolates obtained from oocysts and neurologically affected dogs. This variability could help us to explain the differences in the outcome of the infection in definitive and intermediate hosts. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-10 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/31409 Ortega Mora, Luis M.; Venturini, María Cecilia; Unzaga, Juan Manuel; Schares, Gereon; Jimenez Ruiz, Elena; Regidor Cerrillo, Javier; et al.; Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection; Cambridge University Press; Parasitology; 141; 3; 10-2013; 356-366 0031-1820 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/31409 |
identifier_str_mv |
Ortega Mora, Luis M.; Venturini, María Cecilia; Unzaga, Juan Manuel; Schares, Gereon; Jimenez Ruiz, Elena; Regidor Cerrillo, Javier; et al.; Clinical outcome and vertical transmission variability among canine Neospora caninum isolates in a pregnant mouse model of infection; Cambridge University Press; Parasitology; 141; 3; 10-2013; 356-366 0031-1820 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1017/S0031182013001479 info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/parasitology/article/clinical-outcome-and-vertical-transmission-variability-among-canine-neospora-caninum-isolates-in-a-pregnant-mouse-model-of-infection/952DEFE4FBD93098AD855BD3B408492F |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Cambridge University Press |
publisher.none.fl_str_mv |
Cambridge University Press |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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