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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
19/04/2023 |
Actualizado : |
19/04/2023 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
BOK, M.; VEGA, C.G.; CASTELLS, M.; COLINA, R.; WIGDOROVITZ, A.; PARREÑO, V. |
Afiliación : |
MARINA BOK, INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, 1686, Argentina; CONICET, Buenos Aires, C1425FQB, Argentina; Bioinnovo S.A, Buenos Aires, 1686, Argentina; CELINA G. VEGA, INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, 1686, Argentina; CONICET, Buenos Aires, C1425FQB, Argentina; Bioinnovo S.A, Buenos Aires, 1686, Argentina; MATÍAS CASTELLS BAUER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Molecular Virology Laboratory, CENUR North Litoral, Salto University Centre, University of the Republic, Salto, 50000, Uruguay; RODNEY COLINA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Molecular Virology Laboratory, CENUR North Litoral, Salto University Centre, University of the Republic, Salto, 50000, Uruguay; ANDRÉS WIGDOROVITZ, INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, 1686, Argentina; CONICET, Buenos Aires, C1425FQB, Argentina; Bioinnovo S.A, Buenos Aires, 1686, Argentina; VIVIANA PARREÑO, INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, 1686, Argentina; CONICET, Buenos Aires, C1425FQB, Argentina; Bioinnovo S.A, Buenos Aires, 1686, Argentina. |
Título : |
Development of an IgY-based treatment to control bovine coronavirus diarrhea in dairy calves. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
Viruses, 2023, volume 15, issue 3, article 708. OPEN ACCESS. doi: https://doi.org/10.3390/v15030708 |
ISSN : |
1999-4915 |
DOI : |
10.3390/v15030708 |
Idioma : |
Inglés |
Notas : |
Article history: Received 6 February 2023; Revised 5 March 2023; Accepted 6 March 2023; Published 9 March 2023. -- Academic Editor: Tomomi Takano. -- Correspondence author: Bok, M.; INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires 1686, Argentina; email:bok.marina@inta.gob.ar ; Parreño, V.; INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, Argentina; email:parreno.viviana@inta.gob.ar -- This article belongs to the Special Issue Animal Coronaviruses: Infection, Prevention, and Antivirals https://www.mdpi.com/journal/viruses/special_issues/5XDFOYZ724 ) -- Funding: This work was supported by The National Institute of Agricultural Technology (INTA), ANPCyT from the Argentinean Agricultural Ministry (PICT Start Up 2010-1532), and Vetanco S.A. (CVT 20794). -- |
Contenido : |
Bovine Coronavirus (BCoV) is a major pathogen associated with neonatal calf diarrhea. Standard practice dictates that to prevent BCoV diarrhea, dams should be immunized in the last stage of pregnancy to increase BCoV-specific antibody (Ab) titers in serum and colostrum. For the prevention to be effective, calves need to suck maternal colostrum within the first six to twelve hours of life before gut closure to ensure a good level of passive immunity. The high rate of maternal Ab transfer failure resulting from this process posed the need to develop alternative local passive immunity strategies to strengthen the prevention and treatment of BCoV diarrhea. Immunoglobulin Y technology represents a promising tool to address this gap. In this study, 200 laying hens were immunized with BCoV to obtain spray-dried egg powder enriched in specific IgY Abs to BCoV on a large production scale. To ensure batch-to-batch product consistency, a potency assay was statistically validated. With a sample size of 241, the BCoV-specific IgY ELISA showed a sensitivity and specificity of 97.7% and 98.2%, respectively. ELISA IgY Abs to BCoV correlated with virus-neutralizing Ab titers (Pearson correlation, R2 = 0.92, p < 0.001). Most importantly, a pilot efficacy study in newborn calves showed a significant delay and shorter duration of BCoV-associated diarrhea and shedding in IgY-treated colostrum-deprived calves. Calves were treated with milk supplemented with egg powder (final IgY Ab titer to BCoV ELISA = 512; VN = 32) for 14 days as a passive treatment before a challenge with BCoV and were compared to calves fed milk with no supplementation. This is the first study with proof of efficacy of a product based on egg powder manufactured at a scale that successfully prevents BCoV-associated neonatal calf diarrhea. © 2023 by the authors. MenosBovine Coronavirus (BCoV) is a major pathogen associated with neonatal calf diarrhea. Standard practice dictates that to prevent BCoV diarrhea, dams should be immunized in the last stage of pregnancy to increase BCoV-specific antibody (Ab) titers in serum and colostrum. For the prevention to be effective, calves need to suck maternal colostrum within the first six to twelve hours of life before gut closure to ensure a good level of passive immunity. The high rate of maternal Ab transfer failure resulting from this process posed the need to develop alternative local passive immunity strategies to strengthen the prevention and treatment of BCoV diarrhea. Immunoglobulin Y technology represents a promising tool to address this gap. In this study, 200 laying hens were immunized with BCoV to obtain spray-dried egg powder enriched in specific IgY Abs to BCoV on a large production scale. To ensure batch-to-batch product consistency, a potency assay was statistically validated. With a sample size of 241, the BCoV-specific IgY ELISA showed a sensitivity and specificity of 97.7% and 98.2%, respectively. ELISA IgY Abs to BCoV correlated with virus-neutralizing Ab titers (Pearson correlation, R2 = 0.92, p < 0.001). Most importantly, a pilot efficacy study in newborn calves showed a significant delay and shorter duration of BCoV-associated diarrhea and shedding in IgY-treated colostrum-deprived calves. Calves were treated with milk supplemented with egg powder (final IgY Ab titer to BCoV ... Presentar Todo |
Palabras claves : |
Bovine coronavirus; Development; ELISA validation; IgY antibodies; Neonatal calf diarrhea. |
Asunto categoría : |
L20 Ecología animal |
URL : |
https://www.mdpi.com/1999-4915/15/3/708/pdf
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Marc : |
LEADER 03567naa a2200277 a 4500 001 1064043 005 2023-04-19 008 2023 bl uuuu u00u1 u #d 022 $a1999-4915 024 7 $a10.3390/v15030708$2DOI 100 1 $aBOK, M. 245 $aDevelopment of an IgY-based treatment to control bovine coronavirus diarrhea in dairy calves.$h[electronic resource] 260 $c2023 500 $aArticle history: Received 6 February 2023; Revised 5 March 2023; Accepted 6 March 2023; Published 9 March 2023. -- Academic Editor: Tomomi Takano. -- Correspondence author: Bok, M.; INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires 1686, Argentina; email:bok.marina@inta.gob.ar ; Parreño, V.; INCUINTA, Virology Institute and Technology Innovations, National Institute of Agricultural Technology, Buenos Aires, Argentina; email:parreno.viviana@inta.gob.ar -- This article belongs to the Special Issue Animal Coronaviruses: Infection, Prevention, and Antivirals https://www.mdpi.com/journal/viruses/special_issues/5XDFOYZ724 ) -- Funding: This work was supported by The National Institute of Agricultural Technology (INTA), ANPCyT from the Argentinean Agricultural Ministry (PICT Start Up 2010-1532), and Vetanco S.A. (CVT 20794). -- 520 $aBovine Coronavirus (BCoV) is a major pathogen associated with neonatal calf diarrhea. Standard practice dictates that to prevent BCoV diarrhea, dams should be immunized in the last stage of pregnancy to increase BCoV-specific antibody (Ab) titers in serum and colostrum. For the prevention to be effective, calves need to suck maternal colostrum within the first six to twelve hours of life before gut closure to ensure a good level of passive immunity. The high rate of maternal Ab transfer failure resulting from this process posed the need to develop alternative local passive immunity strategies to strengthen the prevention and treatment of BCoV diarrhea. Immunoglobulin Y technology represents a promising tool to address this gap. In this study, 200 laying hens were immunized with BCoV to obtain spray-dried egg powder enriched in specific IgY Abs to BCoV on a large production scale. To ensure batch-to-batch product consistency, a potency assay was statistically validated. With a sample size of 241, the BCoV-specific IgY ELISA showed a sensitivity and specificity of 97.7% and 98.2%, respectively. ELISA IgY Abs to BCoV correlated with virus-neutralizing Ab titers (Pearson correlation, R2 = 0.92, p < 0.001). Most importantly, a pilot efficacy study in newborn calves showed a significant delay and shorter duration of BCoV-associated diarrhea and shedding in IgY-treated colostrum-deprived calves. Calves were treated with milk supplemented with egg powder (final IgY Ab titer to BCoV ELISA = 512; VN = 32) for 14 days as a passive treatment before a challenge with BCoV and were compared to calves fed milk with no supplementation. This is the first study with proof of efficacy of a product based on egg powder manufactured at a scale that successfully prevents BCoV-associated neonatal calf diarrhea. © 2023 by the authors. 653 $aBovine coronavirus 653 $aDevelopment 653 $aELISA validation 653 $aIgY antibodies 653 $aNeonatal calf diarrhea 700 1 $aVEGA, C.G. 700 1 $aCASTELLS, M. 700 1 $aCOLINA, R. 700 1 $aWIGDOROVITZ, A. 700 1 $aPARREÑO, V. 773 $tViruses, 2023, volume 15, issue 3, article 708. OPEN ACCESS. doi: https://doi.org/10.3390/v15030708
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
20/03/2024 |
Actualizado : |
20/03/2024 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
GIANNITTI, F.; MACHADO, M.; SILVEIRA, C.S.; CIBILS-STEWART, X.; BARAIBAR, N.; QUEIROZ-MACHADO, C.R.R.; POPPENGA, R.H.; MENCHACA, A.; UZAL, F.A.; GARCÍA, J.A.; MATTO, C.; DUTRA, F.; RUPRECHTER, G.; CAFFARENA, D.; SARAVIA, A. |
Afiliación : |
FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MIZAEL MACHADO DA COSTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAROLINE DA SILVA SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; XIMENA CIBILS-STEWART, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NICOLÁS BARAIBAR PEDERSEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CINTIA R. R. QUEIROZ-MACHADO, Centro Universitario Regional Noroeste, Universidad de la República, Tacuarembó, Uruguay; ROBERT H. POPPENGA, School of Veterinary Medicine, University of California, Davis, Davis CA, United States; JOSE ALEJO MENCHACA BARBEITO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FRANCISCO A. UZAL, School of Veterinary Medicine, University of California, Davis, San Bernardino, CA, United States; JUAN A. GARCÍA, Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible, Balcarce, Argentina; CAROLINA MATTO, División Laboratorios Veterinarios, Ministerio de Ganadería, Agricultura y Pesca, Paysandú, Uruguay; FERNANDO DUTRA, División Laboratorios Veterinarios, Ministerio de Ganadería, Agricultura y Pesca, Treinta y Tres, Uruguay; GRETEL RUPRECHTER, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay; RUBEN DARÍO CAFFARENA LEDESMA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay; ANDERSON SARAVIA DE MELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Experimental oral administration of pollen beetle (Astylus atromaculatus) to cattle results in an acute lethal gastrointestinal disease. |
Complemento del título : |
Research article. |
Fecha de publicación : |
2024 |
Fuente / Imprenta : |
Veterinary Pathology. 2024. https://doi.org/10.1177/03009858241231557 -- [In Press] |
ISSN : |
0300-9858 |
DOI : |
10.1177/03009858241231557 |
Idioma : |
Inglés |
Notas : |
Article history: First published online March 4, 2024. -- Correspondence: Federico Giannitti, Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria, Estación Experimental La Estanzuela, Ruta 50 km 11, Semillero 70006, Colonia, Uruguay.
Email: fgiannitti@inia.org.uy -- Funding: This work was funded by grant P__27 from the "Instituto Nacional de Investigación Agropecuaria" (INIA), Uruguay. -- |
Contenido : |
ABSTRACT.- In the summer of 2023, ingestion of Astylus atromaculatus (pollen beetle) was linked to spontaneous fatal disease in grazing cattle and sheep in Argentina and Uruguay. While the disease was experimentally reproduced in sheep and guinea pigs in the 1970's, no experimental reproductions have been attempted in cattle, and controversy exists as to whether this insect is indeed noxious to cattle and at which dose. Here, we demonstrate that A. atromaculatus causes acute fatal disease in Hereford calves at single oral dosages of 2.5, 4.5, 10.0, and 15.0 g of insect/kg body weight. Death or severe disease necessitating euthanasia occurred at 38 to 48 hours postinoculation regardless of the dose, suggesting that the single fatal dosage is likely <2.5 g/kg body weight (this dose representing approximately 850 mL of intact beetles in a 100 kg calf). Clinically, the disease was characterized by acute anorexia, prolonged recumbency, reluctance to move, listlessness/apathy, depression, ruminal hypomotility and tympany, hypothermia, bruxism with frothing at the mouth, and mucoid diarrhea progressing to death. Hematologic and biochemical alterations included hemoconcentration, stress/acute inflammatory leukogram, negative energy balance, and ketosis. The pathological hallmark of this experimental disease is acute necrotizing omaso-reticulo-rumenitis, fibrinohemorrhagic enteritis, and exfoliative colitis with intralesional chitinous insect fragments. While A. atromaculatus might contain a gastrointestinal toxin or pathogen, extensive toxicological testing failed to identify a causative toxin. Other pathomechanisms such as direct physical damage caused by insect fragments on the alimentary tract seem plausible, although further studies are needed to elucidate the pathogenesis of A. atromaculatus-associated disease. © The Author(s) 2024. MenosABSTRACT.- In the summer of 2023, ingestion of Astylus atromaculatus (pollen beetle) was linked to spontaneous fatal disease in grazing cattle and sheep in Argentina and Uruguay. While the disease was experimentally reproduced in sheep and guinea pigs in the 1970's, no experimental reproductions have been attempted in cattle, and controversy exists as to whether this insect is indeed noxious to cattle and at which dose. Here, we demonstrate that A. atromaculatus causes acute fatal disease in Hereford calves at single oral dosages of 2.5, 4.5, 10.0, and 15.0 g of insect/kg body weight. Death or severe disease necessitating euthanasia occurred at 38 to 48 hours postinoculation regardless of the dose, suggesting that the single fatal dosage is likely <2.5 g/kg body weight (this dose representing approximately 850 mL of intact beetles in a 100 kg calf). Clinically, the disease was characterized by acute anorexia, prolonged recumbency, reluctance to move, listlessness/apathy, depression, ruminal hypomotility and tympany, hypothermia, bruxism with frothing at the mouth, and mucoid diarrhea progressing to death. Hematologic and biochemical alterations included hemoconcentration, stress/acute inflammatory leukogram, negative energy balance, and ketosis. The pathological hallmark of this experimental disease is acute necrotizing omaso-reticulo-rumenitis, fibrinohemorrhagic enteritis, and exfoliative colitis with intralesional chitinous insect fragments. While A. atromaculatus might c... Presentar Todo |
Palabras claves : |
Alimentary tract; Astylus atromaculatus; Bovine; Enteritis; Experimental disease; Insects; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA; Rumenitis; South America. |
Asunto categoría : |
L01 Ganadería |
Marc : |
LEADER 03582naa a2200433 a 4500 001 1064506 005 2024-03-20 008 2024 bl uuuu u00u1 u #d 022 $a0300-9858 024 7 $a10.1177/03009858241231557$2DOI 100 1 $aGIANNITTI, F. 245 $aExperimental oral administration of pollen beetle (Astylus atromaculatus) to cattle results in an acute lethal gastrointestinal disease.$h[electronic resource] 260 $c2024 500 $aArticle history: First published online March 4, 2024. -- Correspondence: Federico Giannitti, Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria, Estación Experimental La Estanzuela, Ruta 50 km 11, Semillero 70006, Colonia, Uruguay. Email: fgiannitti@inia.org.uy -- Funding: This work was funded by grant P__27 from the "Instituto Nacional de Investigación Agropecuaria" (INIA), Uruguay. -- 520 $aABSTRACT.- In the summer of 2023, ingestion of Astylus atromaculatus (pollen beetle) was linked to spontaneous fatal disease in grazing cattle and sheep in Argentina and Uruguay. While the disease was experimentally reproduced in sheep and guinea pigs in the 1970's, no experimental reproductions have been attempted in cattle, and controversy exists as to whether this insect is indeed noxious to cattle and at which dose. Here, we demonstrate that A. atromaculatus causes acute fatal disease in Hereford calves at single oral dosages of 2.5, 4.5, 10.0, and 15.0 g of insect/kg body weight. Death or severe disease necessitating euthanasia occurred at 38 to 48 hours postinoculation regardless of the dose, suggesting that the single fatal dosage is likely <2.5 g/kg body weight (this dose representing approximately 850 mL of intact beetles in a 100 kg calf). Clinically, the disease was characterized by acute anorexia, prolonged recumbency, reluctance to move, listlessness/apathy, depression, ruminal hypomotility and tympany, hypothermia, bruxism with frothing at the mouth, and mucoid diarrhea progressing to death. Hematologic and biochemical alterations included hemoconcentration, stress/acute inflammatory leukogram, negative energy balance, and ketosis. The pathological hallmark of this experimental disease is acute necrotizing omaso-reticulo-rumenitis, fibrinohemorrhagic enteritis, and exfoliative colitis with intralesional chitinous insect fragments. While A. atromaculatus might contain a gastrointestinal toxin or pathogen, extensive toxicological testing failed to identify a causative toxin. Other pathomechanisms such as direct physical damage caused by insect fragments on the alimentary tract seem plausible, although further studies are needed to elucidate the pathogenesis of A. atromaculatus-associated disease. © The Author(s) 2024. 653 $aAlimentary tract 653 $aAstylus atromaculatus 653 $aBovine 653 $aEnteritis 653 $aExperimental disease 653 $aInsects 653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA 653 $aRumenitis 653 $aSouth America 700 1 $aMACHADO, M. 700 1 $aSILVEIRA, C.S. 700 1 $aCIBILS-STEWART, X. 700 1 $aBARAIBAR, N. 700 1 $aQUEIROZ-MACHADO, C.R.R. 700 1 $aPOPPENGA, R.H. 700 1 $aMENCHACA, A. 700 1 $aUZAL, F.A. 700 1 $aGARCÍA, J.A. 700 1 $aMATTO, C. 700 1 $aDUTRA, F. 700 1 $aRUPRECHTER, G. 700 1 $aCAFFARENA, D. 700 1 $aSARAVIA, A. 773 $tVeterinary Pathology. 2024. https://doi.org/10.1177/03009858241231557 -- [In Press]
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