Characterization of a new albendazole resistant Fasciola hepatica isolate

Autores
Martínez Valladares, María; Valderas García, Elora; Castilla Gómez de Agüero, Verónica; González Warleta, Marta; Ceballos, Laura; Liron, Juan Pedro; Sanabria, Rodrigo; Pruzzo, Cesar Ivan; Alvarez, Luis Ignacio
Año de publicación
2021
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Characterization of a new albendazole resistant Fasciola hepatica isolateMaría Martínez-Valladares11,2, Elora Valderas-García1,2, Verónica Castilla Gómez de Agüero1,2, Marta González-Warleta3, Laura Ceballos4, Juan P. Lirón4, Rodrigo Sanabria5, Cesar Pruzzo5, Luis I. Alvarez4.1Instituto de Ganadería de Montaña (CSIC-Universidad de León), Departamento de Sanidad Animal (Department of Animal Health), León, Spain.2Departamento de Sanidad Animal (Department of Animal Health), Facultad de Veterinaria, University of Leon, Leon, Spain.3Laboratorio de Parasitología, Centro de Investigaciones Agrarias de Mabegondo, AGACAL, Abegondo, A Coruña, Spain.4Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN), UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina.5Laboratorio de Parasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de la Plata (UNLP), La Plata, Argentina.The infection by Fasciola hepatica affects mainly ruminants although is present in a wide variety of species including humans. Fasciolosis control is mainly based on triclabendazole administration, the main drug indicated in humans. Albendazole (ABZ) is used against nematode and liver fluke infections in ruminants. The misuse of these drugs has led to the appearance of anthelmintic resistance. In this study, we characterized an ABZ resistant isolate and evaluate the use of a combined treatment to improve treatment efficacy. The isolate was collected from a slaughterhouse in Argentina, maintained under laboratory conditions and identified by means of the egg hatch test (EHT). Using these eggs metacercariae were produced to infect sheep artificially. When flukes reached the adult stage, animals were divided into two groups, one treated with ABZ (7.5 mg/kg bw) and another with a placebo. All sheep were slaughtered at day 14 post-treatment to collect and count the number of flukes. The resistance of ABZ was confirmed with a reduction of 44% of adult flukes in the treated group. At the necropsy, adult flukes from the livers and eggs from the gall bladders, both from sheep treated with the placebo, were collected. Adult flukes were maintained alive in RPMI medium to let them to excrete eggs for 24 hours. EHT was conducted and different results were observed with the two egg sets. The EHT performed with eggs collected directly from gall bladder confirmed the resistant status of the isolate. However, the EHT with eggs recovered from flukes resulted in a susceptible phenotype, showing that only previously laying eggs (in bile) can express the resistant phenotype. After producing more metacercariae from this resistant isolate, we are testing in vivo the efficacy of a combined treatment to improve its efficacy. The results will be presented during the WAAVP meeting.
Fil: Martínez Valladares, María. Universidad de Leon. Facultad de Veterinaria; Argentina
Fil: Valderas García, Elora. Universidad de Leon. Facultad de Veterinaria; Argentina
Fil: Castilla Gómez de Agüero, Verónica. Universidad de Leon. Facultad de Veterinaria; Argentina
Fil: González Warleta, Marta. Universidad de Leon. Facultad de Veterinaria; Argentina
Fil: Ceballos, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
Fil: Liron, Juan Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
Fil: Sanabria, Rodrigo. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias; Argentina
Fil: Pruzzo, Cesar Ivan. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias; Argentina
Fil: Alvarez, Luis Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
28th International Conference of tha World Association for the Advancement of Veterinary Parasitology
Dublin
Irlanda
World Association for the Advancement of Veterinary Parasitology
University College Dublin
Materia
FASCIOLA HEPATICA
RESISTENCIA
BENZIMIDAZOLES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/156967
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Characterization of a new albendazole resistant Fasciola hepatica isolateMartínez Valladares, MaríaValderas García, EloraCastilla Gómez de Agüero, VerónicaGonzález Warleta, MartaCeballos, LauraLiron, Juan PedroSanabria, RodrigoPruzzo, Cesar IvanAlvarez, Luis IgnacioFASCIOLA HEPATICARESISTENCIABENZIMIDAZOLEShttps://purl.org/becyt/ford/4.3https://purl.org/becyt/ford/4Characterization of a new albendazole resistant Fasciola hepatica isolateMaría Martínez-Valladares11,2, Elora Valderas-García1,2, Verónica Castilla Gómez de Agüero1,2, Marta González-Warleta3, Laura Ceballos4, Juan P. Lirón4, Rodrigo Sanabria5, Cesar Pruzzo5, Luis I. Alvarez4.1Instituto de Ganadería de Montaña (CSIC-Universidad de León), Departamento de Sanidad Animal (Department of Animal Health), León, Spain.2Departamento de Sanidad Animal (Department of Animal Health), Facultad de Veterinaria, University of Leon, Leon, Spain.3Laboratorio de Parasitología, Centro de Investigaciones Agrarias de Mabegondo, AGACAL, Abegondo, A Coruña, Spain.4Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN), UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina.5Laboratorio de Parasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de la Plata (UNLP), La Plata, Argentina.The infection by Fasciola hepatica affects mainly ruminants although is present in a wide variety of species including humans. Fasciolosis control is mainly based on triclabendazole administration, the main drug indicated in humans. Albendazole (ABZ) is used against nematode and liver fluke infections in ruminants. The misuse of these drugs has led to the appearance of anthelmintic resistance. In this study, we characterized an ABZ resistant isolate and evaluate the use of a combined treatment to improve treatment efficacy. The isolate was collected from a slaughterhouse in Argentina, maintained under laboratory conditions and identified by means of the egg hatch test (EHT). Using these eggs metacercariae were produced to infect sheep artificially. When flukes reached the adult stage, animals were divided into two groups, one treated with ABZ (7.5 mg/kg bw) and another with a placebo. All sheep were slaughtered at day 14 post-treatment to collect and count the number of flukes. The resistance of ABZ was confirmed with a reduction of 44% of adult flukes in the treated group. At the necropsy, adult flukes from the livers and eggs from the gall bladders, both from sheep treated with the placebo, were collected. Adult flukes were maintained alive in RPMI medium to let them to excrete eggs for 24 hours. EHT was conducted and different results were observed with the two egg sets. The EHT performed with eggs collected directly from gall bladder confirmed the resistant status of the isolate. However, the EHT with eggs recovered from flukes resulted in a susceptible phenotype, showing that only previously laying eggs (in bile) can express the resistant phenotype. After producing more metacercariae from this resistant isolate, we are testing in vivo the efficacy of a combined treatment to improve its efficacy. The results will be presented during the WAAVP meeting.Fil: Martínez Valladares, María. Universidad de Leon. Facultad de Veterinaria; ArgentinaFil: Valderas García, Elora. Universidad de Leon. Facultad de Veterinaria; ArgentinaFil: Castilla Gómez de Agüero, Verónica. Universidad de Leon. Facultad de Veterinaria; ArgentinaFil: González Warleta, Marta. Universidad de Leon. Facultad de Veterinaria; ArgentinaFil: Ceballos, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; ArgentinaFil: Liron, Juan Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; ArgentinaFil: Sanabria, Rodrigo. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias; ArgentinaFil: Pruzzo, Cesar Ivan. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias; ArgentinaFil: Alvarez, Luis Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina28th International Conference of tha World Association for the Advancement of Veterinary ParasitologyDublinIrlandaWorld Association for the Advancement of Veterinary ParasitologyUniversity College DublinWorld Association for the Advancement of Veterinary Parasitology2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectConferenciaBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/pdfhttp://hdl.handle.net/11336/156967Characterization of a new albendazole resistant Fasciola hepatica isolate; 28th International Conference of tha World Association for the Advancement of Veterinary Parasitology; Dublin; Irlanda; 2021; 86-87CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.waavp2021.com/info:eu-repo/semantics/altIdentifier/url/http://www.waavp2021.com/wp-content/uploads/2021/08/WAAVP-2021-Abstract-book-22.07.21-FINAL.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:12:54Zoai:ri.conicet.gov.ar:11336/156967instacron: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 10:12:55.236CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Characterization of a new albendazole resistant Fasciola hepatica isolate
title Characterization of a new albendazole resistant Fasciola hepatica isolate
spellingShingle Characterization of a new albendazole resistant Fasciola hepatica isolate
Martínez Valladares, María
FASCIOLA HEPATICA
RESISTENCIA
BENZIMIDAZOLES
title_short Characterization of a new albendazole resistant Fasciola hepatica isolate
title_full Characterization of a new albendazole resistant Fasciola hepatica isolate
title_fullStr Characterization of a new albendazole resistant Fasciola hepatica isolate
title_full_unstemmed Characterization of a new albendazole resistant Fasciola hepatica isolate
title_sort Characterization of a new albendazole resistant Fasciola hepatica isolate
dc.creator.none.fl_str_mv Martínez Valladares, María
Valderas García, Elora
Castilla Gómez de Agüero, Verónica
González Warleta, Marta
Ceballos, Laura
Liron, Juan Pedro
Sanabria, Rodrigo
Pruzzo, Cesar Ivan
Alvarez, Luis Ignacio
author Martínez Valladares, María
author_facet Martínez Valladares, María
Valderas García, Elora
Castilla Gómez de Agüero, Verónica
González Warleta, Marta
Ceballos, Laura
Liron, Juan Pedro
Sanabria, Rodrigo
Pruzzo, Cesar Ivan
Alvarez, Luis Ignacio
author_role author
author2 Valderas García, Elora
Castilla Gómez de Agüero, Verónica
González Warleta, Marta
Ceballos, Laura
Liron, Juan Pedro
Sanabria, Rodrigo
Pruzzo, Cesar Ivan
Alvarez, Luis Ignacio
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv FASCIOLA HEPATICA
RESISTENCIA
BENZIMIDAZOLES
topic FASCIOLA HEPATICA
RESISTENCIA
BENZIMIDAZOLES
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.3
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Characterization of a new albendazole resistant Fasciola hepatica isolateMaría Martínez-Valladares11,2, Elora Valderas-García1,2, Verónica Castilla Gómez de Agüero1,2, Marta González-Warleta3, Laura Ceballos4, Juan P. Lirón4, Rodrigo Sanabria5, Cesar Pruzzo5, Luis I. Alvarez4.1Instituto de Ganadería de Montaña (CSIC-Universidad de León), Departamento de Sanidad Animal (Department of Animal Health), León, Spain.2Departamento de Sanidad Animal (Department of Animal Health), Facultad de Veterinaria, University of Leon, Leon, Spain.3Laboratorio de Parasitología, Centro de Investigaciones Agrarias de Mabegondo, AGACAL, Abegondo, A Coruña, Spain.4Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN), UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina.5Laboratorio de Parasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de la Plata (UNLP), La Plata, Argentina.The infection by Fasciola hepatica affects mainly ruminants although is present in a wide variety of species including humans. Fasciolosis control is mainly based on triclabendazole administration, the main drug indicated in humans. Albendazole (ABZ) is used against nematode and liver fluke infections in ruminants. The misuse of these drugs has led to the appearance of anthelmintic resistance. In this study, we characterized an ABZ resistant isolate and evaluate the use of a combined treatment to improve treatment efficacy. The isolate was collected from a slaughterhouse in Argentina, maintained under laboratory conditions and identified by means of the egg hatch test (EHT). Using these eggs metacercariae were produced to infect sheep artificially. When flukes reached the adult stage, animals were divided into two groups, one treated with ABZ (7.5 mg/kg bw) and another with a placebo. All sheep were slaughtered at day 14 post-treatment to collect and count the number of flukes. The resistance of ABZ was confirmed with a reduction of 44% of adult flukes in the treated group. At the necropsy, adult flukes from the livers and eggs from the gall bladders, both from sheep treated with the placebo, were collected. Adult flukes were maintained alive in RPMI medium to let them to excrete eggs for 24 hours. EHT was conducted and different results were observed with the two egg sets. The EHT performed with eggs collected directly from gall bladder confirmed the resistant status of the isolate. However, the EHT with eggs recovered from flukes resulted in a susceptible phenotype, showing that only previously laying eggs (in bile) can express the resistant phenotype. After producing more metacercariae from this resistant isolate, we are testing in vivo the efficacy of a combined treatment to improve its efficacy. The results will be presented during the WAAVP meeting.
Fil: Martínez Valladares, María. Universidad de Leon. Facultad de Veterinaria; Argentina
Fil: Valderas García, Elora. Universidad de Leon. Facultad de Veterinaria; Argentina
Fil: Castilla Gómez de Agüero, Verónica. Universidad de Leon. Facultad de Veterinaria; Argentina
Fil: González Warleta, Marta. Universidad de Leon. Facultad de Veterinaria; Argentina
Fil: Ceballos, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
Fil: Liron, Juan Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
Fil: Sanabria, Rodrigo. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias; Argentina
Fil: Pruzzo, Cesar Ivan. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias; Argentina
Fil: Alvarez, Luis Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigación Veterinaria de Tandil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigación Veterinaria de Tandil. Provincia de Buenos Aires. Gobernación. Comision de Investigaciones Científicas. Centro de Investigación Veterinaria de Tandil; Argentina
28th International Conference of tha World Association for the Advancement of Veterinary Parasitology
Dublin
Irlanda
World Association for the Advancement of Veterinary Parasitology
University College Dublin
description Characterization of a new albendazole resistant Fasciola hepatica isolateMaría Martínez-Valladares11,2, Elora Valderas-García1,2, Verónica Castilla Gómez de Agüero1,2, Marta González-Warleta3, Laura Ceballos4, Juan P. Lirón4, Rodrigo Sanabria5, Cesar Pruzzo5, Luis I. Alvarez4.1Instituto de Ganadería de Montaña (CSIC-Universidad de León), Departamento de Sanidad Animal (Department of Animal Health), León, Spain.2Departamento de Sanidad Animal (Department of Animal Health), Facultad de Veterinaria, University of Leon, Leon, Spain.3Laboratorio de Parasitología, Centro de Investigaciones Agrarias de Mabegondo, AGACAL, Abegondo, A Coruña, Spain.4Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN), UNCPBA-CICPBA-CONICET, Facultad de Ciencias Veterinarias, Tandil, Argentina.5Laboratorio de Parasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de la Plata (UNLP), La Plata, Argentina.The infection by Fasciola hepatica affects mainly ruminants although is present in a wide variety of species including humans. Fasciolosis control is mainly based on triclabendazole administration, the main drug indicated in humans. Albendazole (ABZ) is used against nematode and liver fluke infections in ruminants. The misuse of these drugs has led to the appearance of anthelmintic resistance. In this study, we characterized an ABZ resistant isolate and evaluate the use of a combined treatment to improve treatment efficacy. The isolate was collected from a slaughterhouse in Argentina, maintained under laboratory conditions and identified by means of the egg hatch test (EHT). Using these eggs metacercariae were produced to infect sheep artificially. When flukes reached the adult stage, animals were divided into two groups, one treated with ABZ (7.5 mg/kg bw) and another with a placebo. All sheep were slaughtered at day 14 post-treatment to collect and count the number of flukes. The resistance of ABZ was confirmed with a reduction of 44% of adult flukes in the treated group. At the necropsy, adult flukes from the livers and eggs from the gall bladders, both from sheep treated with the placebo, were collected. Adult flukes were maintained alive in RPMI medium to let them to excrete eggs for 24 hours. EHT was conducted and different results were observed with the two egg sets. The EHT performed with eggs collected directly from gall bladder confirmed the resistant status of the isolate. However, the EHT with eggs recovered from flukes resulted in a susceptible phenotype, showing that only previously laying eggs (in bile) can express the resistant phenotype. After producing more metacercariae from this resistant isolate, we are testing in vivo the efficacy of a combined treatment to improve its efficacy. The results will be presented during the WAAVP meeting.
publishDate 2021
dc.date.none.fl_str_mv 2021
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dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/156967
Characterization of a new albendazole resistant Fasciola hepatica isolate; 28th International Conference of tha World Association for the Advancement of Veterinary Parasitology; Dublin; Irlanda; 2021; 86-87
CONICET Digital
CONICET
url http://hdl.handle.net/11336/156967
identifier_str_mv Characterization of a new albendazole resistant Fasciola hepatica isolate; 28th International Conference of tha World Association for the Advancement of Veterinary Parasitology; Dublin; Irlanda; 2021; 86-87
CONICET Digital
CONICET
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dc.publisher.none.fl_str_mv World Association for the Advancement of Veterinary Parasitology
publisher.none.fl_str_mv World Association for the Advancement of Veterinary Parasitology
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