Salivary, serum, and abomasal mucus IgA as an immune correlate of protection against Haemonchus contortus infection in naturally infected lambs

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorPontifícia Universidade Católica do Paraná (PUCPR)-
Autor(es): dc.contributorImunova Análises Biológicas LTDA-
Autor(es): dc.contributorUniversidade Federal do Paraná (UFPR)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorSalgado, Jordana Andrioli-
Autor(es): dc.creatordos Santos, Sthefany Kamile-
Autor(es): dc.creatorBiz, Jesséa de Fátima França-
Autor(es): dc.creatorde Carvalho, Matheus Borges-
Autor(es): dc.creatorRigo, Fernanda-
Autor(es): dc.creatorBeirão, Breno Castello Branco-
Autor(es): dc.creatorAmarante, Alessandro Francisco Talamini do-
Autor(es): dc.creatorCosta, Leandro Batista-
Autor(es): dc.creatorSotomaior, Cristina Santos-
Data de aceite: dc.date.accessioned2025-08-21T21:35:08Z-
Data de disponibilização: dc.date.available2025-08-21T21:35:08Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.rvsc.2022.01.006-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/234045-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/234045-
Descrição: dc.descriptionThis study aimed to evaluate salivary, serum, and abomasal mucus IgA levels in lambs naturally infected with Haemonchus contortus. Thirty-seven crossbred lambs (½ Texel or ½ Ile de France) with an average age of 193 days were evaluated for 56 days after grazing on a contaminated pasture. Fecal samples were collected every 7 days to evaluate the EPG. Blood and saliva samples were collected for IgA measurement every 14 days. On D56, 29 animals were killed for parasite counting and IgA quantification in the abomasal mucus. Salivary, serum, and abomasal mucus IgA were measured by ELISA using third-stage larvae antigens. Salivary and mucus IgA were not correlated, but D14 salivary IgA correlated with EPG on D28 (r = −0.37) and D56 (r = −0.36); D28 salivary IgA correlated with D49 (r = −0.40) and D56 EPG (r = −0.44). Abomasal mucus IgA negatively correlated with EPG from D28 to D56 (r varied from _0.51 to −0.62) and with the counts of all parasitic stages (−0.60 to −0.67). The lambs were classified as susceptible (S) or resistant (R) according to EPG (D56 EPG and cumulative EPG) or IgA (salivary, serum, and mucus IgA). Based on D56 EPG and cumulative EPG, resistant lambs had higher D14 salivary IgA, mucus IgA, and total worm counts. For evaluations based on IgA levels, the EPG of S and R animals differed, indicating that IgA was an immune correlate of protection against natural infection with Haemonchus sp., mainly in the saliva sample of D14.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionGraduate Program in Animal Science School of Medicine and Life Sciences Pontifícia Universidade Católica do Paraná (PUCPR)-
Descrição: dc.descriptionVeterinary Medicine School of Life Sciences Pontifícia Universidade Católica do Paraná (PUCPR)-
Descrição: dc.descriptionImunova Análises Biológicas LTDA-
Descrição: dc.descriptionGraduate Program in Microbiology Parasitology and Pathology Federal University of Paraná (UFPR)-
Descrição: dc.descriptionInstitute of Biosciences UNESP–São Paulo State University, R. Prof. Dr. Antônio Celso Wagner Zanin, 250-
Descrição: dc.descriptionInstitute of Biosciences UNESP–São Paulo State University, R. Prof. Dr. Antônio Celso Wagner Zanin, 250-
Formato: dc.format82-91-
Idioma: dc.languageen-
Relação: dc.relationResearch in Veterinary Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectImmunoglobulins-
Palavras-chave: dc.subjectImmunological markers-
Palavras-chave: dc.subjectNematodiosis-
Palavras-chave: dc.subjectSelection-
Palavras-chave: dc.subjectSheep-
Título: dc.titleSalivary, serum, and abomasal mucus IgA as an immune correlate of protection against Haemonchus contortus infection in naturally infected lambs-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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