|
|
| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
Registro completo
|
Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
02/03/2017 |
Actualizado : |
07/03/2017 |
Autor : |
GARCIA, J.P; GIANNITTI, F.; FINNIE, J.W.; MANAVIS, J. .; BEINGESSER, J.; ADAMS ,V.; ROOD, J.I.; UZAL, F.A. |
Afiliación : |
FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Comparative Neuropathology of Ovine Enterotoxemia Produced by Clostridium perfringens Type D Wild-Type Strain CN1020 and Its Genetically Modified Derivatives. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
Veterinary Pathology, 2015, v.52.n.6. p.1250-1253, 2015. |
Idioma : |
Inglés |
Contenido : |
Abstract
Clostridium perfringens type D causes enterotoxemia in sheep and goats. The disease is mediated by epsilon toxin (ETX), which affects the cerebrovascular endothelium, increasing vascular permeability and leading to cerebral edema. In the present study, we compared the distribution and severity of the cerebrovascular changes induced in lambs by C. perfringens type D strain CN1020, its isogenic etx null mutant, and the ETX-producing complemented mutant. We also applied histochemical and immunohistochemical markers to further characterize the brain lesions induced by ETX. Both ETX-producing strains induced extensive cerebrovascular damage that did not differ significantly between each other in nature, neuroanatomic distribution, or severity. By contrast, lambs inoculated with the etx mutant or sterile, nontoxic culture medium did not develop detectable brain lesions, confirming that the neuropathologic effects observed in these infections are dependent on ETX production. Lambs treated with the wild-type and complemented strains showed perivascular and mural vascular edema, as well as serum albumin extravasation, particularly severe in the cerebral white matter, midbrain, medulla oblongata, and cerebellum. Brains of animals inoculated with the ETX-producing strains showed decreased expression of glial fibrillary acidic protein and increased expression of aquaporin-4 in the end-feet processes of the astrocytes around blood vessels. Early axonal injury was demonstrated with anti?amyloid precursor protein immunohistochemistry. Perivascular accumulation of macrophages/microglia with intracytoplasmic albumin globules was also observed in these animals. This study demonstrates that ETX is responsible for the major cerebrovascular changes in C. perfringens type D?induced disease. MenosAbstract
Clostridium perfringens type D causes enterotoxemia in sheep and goats. The disease is mediated by epsilon toxin (ETX), which affects the cerebrovascular endothelium, increasing vascular permeability and leading to cerebral edema. In the present study, we compared the distribution and severity of the cerebrovascular changes induced in lambs by C. perfringens type D strain CN1020, its isogenic etx null mutant, and the ETX-producing complemented mutant. We also applied histochemical and immunohistochemical markers to further characterize the brain lesions induced by ETX. Both ETX-producing strains induced extensive cerebrovascular damage that did not differ significantly between each other in nature, neuroanatomic distribution, or severity. By contrast, lambs inoculated with the etx mutant or sterile, nontoxic culture medium did not develop detectable brain lesions, confirming that the neuropathologic effects observed in these infections are dependent on ETX production. Lambs treated with the wild-type and complemented strains showed perivascular and mural vascular edema, as well as serum albumin extravasation, particularly severe in the cerebral white matter, midbrain, medulla oblongata, and cerebellum. Brains of animals inoculated with the ETX-producing strains showed decreased expression of glial fibrillary acidic protein and increased expression of aquaporin-4 in the end-feet processes of the astrocytes around blood vessels. Early axonal injury was demonstrated wi... Presentar Todo |
Thesagro : |
ENFERMEDADES DE LOS ANIMALES. |
Asunto categoría : |
-- |
Marc : |
LEADER 02512naa a2200217 a 4500 001 1056750 005 2017-03-07 008 2015 bl uuuu u00u1 u #d 100 1 $aGARCIA, J.P 245 $aComparative Neuropathology of Ovine Enterotoxemia Produced by Clostridium perfringens Type D Wild-Type Strain CN1020 and Its Genetically Modified Derivatives.$h[electronic resource] 260 $c2015 520 $aAbstract Clostridium perfringens type D causes enterotoxemia in sheep and goats. The disease is mediated by epsilon toxin (ETX), which affects the cerebrovascular endothelium, increasing vascular permeability and leading to cerebral edema. In the present study, we compared the distribution and severity of the cerebrovascular changes induced in lambs by C. perfringens type D strain CN1020, its isogenic etx null mutant, and the ETX-producing complemented mutant. We also applied histochemical and immunohistochemical markers to further characterize the brain lesions induced by ETX. Both ETX-producing strains induced extensive cerebrovascular damage that did not differ significantly between each other in nature, neuroanatomic distribution, or severity. By contrast, lambs inoculated with the etx mutant or sterile, nontoxic culture medium did not develop detectable brain lesions, confirming that the neuropathologic effects observed in these infections are dependent on ETX production. Lambs treated with the wild-type and complemented strains showed perivascular and mural vascular edema, as well as serum albumin extravasation, particularly severe in the cerebral white matter, midbrain, medulla oblongata, and cerebellum. Brains of animals inoculated with the ETX-producing strains showed decreased expression of glial fibrillary acidic protein and increased expression of aquaporin-4 in the end-feet processes of the astrocytes around blood vessels. Early axonal injury was demonstrated with anti?amyloid precursor protein immunohistochemistry. Perivascular accumulation of macrophages/microglia with intracytoplasmic albumin globules was also observed in these animals. This study demonstrates that ETX is responsible for the major cerebrovascular changes in C. perfringens type D?induced disease. 650 $aENFERMEDADES DE LOS ANIMALES 700 1 $aGIANNITTI, F. 700 1 $aFINNIE, J.W. 700 1 $aMANAVIS, J. . 700 1 $aBEINGESSER, J. 700 1 $aADAMS ,V. 700 1 $aROOD, J.I. 700 1 $aUZAL, F.A. 773 $tVeterinary Pathology, 2015$gv.52.n.6. p.1250-1253, 2015.
Descargar
Esconder MarcPresentar Marc Completo |
Registro original : |
INIA La Estanzuela (LE) |
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
Registros recuperados : 22 | |
5. | | CARMO, P.M.S.D.; UZAL , F.A.; PEDROSO, P.M.O.; RIET-CORREA, F. Conidiobolomycosis, cryptococcosis, and aspergillosis in sheep and goats: a review. Journal of Veterinary Diagnostic Investigation, Vol. 32, Issue 6, pag.826-834, Nov. 2020. Doi: https://doi.org/10.1177/1040638720958338 Article history: First Published September 14, 2020.Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA La Estanzuela. |
| |
7. | | DONCEL, B.; CASTELLS, M.; MAYA, L.; FRAGA, M.; UZAL, F.A; COLINA, R.; GIANNITTI, F. Encefalitis asociada a astrovirus bovino neurotrópico, ¿una enfermedad subdiagnosticada en Sudamérica?.[Neurotropic bovine astrovirus-associated encephalitis: An underdiagnosed disease in South America?]. Revista Argentina de Microbiologia, Volume 54, Pages 100-105, 2022. OPEN ACCESS. Doi: https://doi.org/10.1016/j.ram.2021.01.00 Article history: Recibido el 15 de julio de 2020/ Aaceptado el 24 de enero de 2021./Disponible en Internet el 18 junio 2021. Autor para correspondencia: Correo electrónico: fgiannitti@inia.org.uy (F. Giannitti). Este trabajo fue...Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA La Estanzuela. |
| |
9. | | GIANNITTI, F.; GARCÍA, J. P.; ADAMS, V.; ARMENDANO, J.; BEINGESSER, J.; ROOD, J.; UZAL, F. A. Experimental acute Clostridium perfringens type D enterotoxemia in sheep is not characterized by specific renal lesions. Infectious Disease - Original Article. Veterinary Pathology. 2023, vol.60(4):412-419. https://doi.org/10.1177/03009858231171669 Article history: First published online May 12, 2023. -- Corresponding Author: Francisco A. Uzal, California Animal Health and Food Safety Laboratory, School of Veterinary Medicine, University of California at Davis, 105 W CVentral Ave,...Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA Las Brujas. |
| |
11. | | CARVALLO, F.R.; UZAL, F.A.; FLORES, C.; DIAB, S.S.; GIANNITTI, F.; CROSSLEY, B.; WÜNSCHMANN, A. Alimentary necrobacillosis in alpacas. Journal of Veterinary Diagnostic Investigation,2020,Mar;32(2):339-343. Doi: https://doi.org/10.1177/1040638720906409 Article history: Article first published online: February 18, 2020/ Issue published: March 1, 2020.
Corresponding Author: Francisco R. Carvallo, Department of Biomedical Sciences and Pathobiology, Virginia?Maryland College of Veterinary....Biblioteca(s): INIA La Estanzuela. |
| |
12. | | GIANNITTI, F.; GARCÍA, J.P.; ROOD, J.I.; ADAMS, V.; ARMENDANO, J.I.; BEINGESSER, J.; UZAL, F.A. Cardiopulmonary Lesions in Sheep Produced by Experimental Acute Clostridium Perfringens Type D Enterotoxemia. Veterinay Pathology, volumen 58, number 1, pag. 103-113, 2021. Doi: https://doi.org/10.1177/0300985820965554 Article history: First Published October 15, 2020. Corresponding Author:Francisco A. Uzal, Email: fuzal@cahfs.ucdavis.edu. The author(s) disclosed receipt of the following financial support for the research, authorship, and/or...Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA La Estanzuela. |
| |
13. | | GARCIA, J.P; GIANNITTI, F.; FINNIE, J.W.; MANAVIS, J. .; BEINGESSER, J.; ADAMS ,V.; ROOD, J.I.; UZAL, F.A. Comparative Neuropathology of Ovine Enterotoxemia Produced by Clostridium perfringens Type D Wild-Type Strain CN1020 and Its Genetically Modified Derivatives. Veterinary Pathology, 2015, v.52.n.6. p.1250-1253, 2015.Biblioteca(s): INIA La Estanzuela. |
| |
15. | | GIANNITTI, F.; CAFFARENA, D.; PESAVENTO, P.; UZAL, F.A.; MAYA, L.; FRAGA, M.; COLINA, R.; CASTELLS, M. The first case of bovine astrovirus-associated encephalitis in the southern hemisphere (Uruguay), uncovers evidence of viral introduction to the Americas from Europe. Frontiers in Microbiology, volumen 10, Article 1240, 04 June 2019. [OPEN ACCESS].Doi: https://doi.org/10.3389/fmicb.2019.01240 Article history: Received: 22 March 2019//Accepted: 17 May 2019//Published: 04 June 2019. This work was funded by Grants PL-015 N-15156 from INIA and 158 from the ?Programa de Iniciación a la Investigación 2017? from ?Comisión Sectorial...Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA La Estanzuela. |
| |
16. | | UZAL, F.A.; STOVER, S.; MORGAN, J.; FINO, C.; DIAB, S.; GIANNITTI, F.; HILL, A.E.; ARTHUR, R. Sudden death of racehorses in California: what is new?. [abstract] In: Proceedings of the American Association of Veterinary Laboratory Diagnosticians (AAVLD), 65th and United States Animal Health Association (USAHA) Annual Meeting, 126th, Minneapolis, Minnesota, USA. Oct. 6-12, 2022. pp.118. AAVLD 2022, 65th Annual Meeting "Technological Advances in Veterinary Diagnosis: what's here and what's on the horizon?".Tipo: Abstracts/Resúmenes |
Biblioteca(s): INIA Las Brujas. |
| |
17. | | MACÍAS-RIOSECO, M.; RIET-CORREA, F.; MILLER, M.M.; SONDGEROTH, K.; FRAGA, M.; SILVEIRA, C.S.; UZAL, F.A.; GIANNITTI, F. Bovine abortion caused by Coxiella burnetii : report of a cluster of cases in Uruguay and review of the literature. Journal of Veterinary Diagnostic Investigation; Jul 2019, v. 31, n. 4, p.634-639. Article history: Article first published online: June 10, 2019//Issue published: July 1, 2019.Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA La Estanzuela. |
| |
18. | | MACÍAS-RIOSECO, M.; MIRAZO ,S.; UZAL, F.A.; FRAGA, M.; SILVEIRA, C.S.; MAYA, L.; RIET-CORREA, F.; ARBIZA, J.; COLINA, R.; ANDERSON ,M.L.; GIANNITTI, F. Fetal Pathology in an Aborted Holstein Fetus Infected With Bovine Parainfluenza Virus-3 Genotype A. Veterinary Pathology [Vet Pathol], 2018 Sep 24, p. 300985818798117. Article History:Date Created: 20180925 //Latest Revision: 20180924.Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA La Estanzuela. |
| |
19. | | GARCÍA, J.A.; LIVIO, J.M.; MATTO, C.; DUTRA, F.; SCIOLI, V.; GIANNITTI, F.; LANGSTON, J.; POPPENGA, R.H.; CANTÓN, G.J.; UZAL, F.A. Pollen beetle (Astylus atromaculatus)-associated gastroenteric disease in cattle: report of 6 natural outbreaks. Full Scientific Report. Journal of Veterinary Diagnostic Investigation, 2024, Volume 36, Issue 1, Pages 95-102. https://doi.org/10.1177/10406387231215756 Article history: Article first published online: November 29, 2023; Issue published: January 2024. -- Correspondence: Uzal, F.A.; California Animal Health and Food Safety Laboratory, San Bernardino branches, School of Veterinary Medicine,...Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA Las Brujas. |
| |
20. | | DORSCH, M.; CASAUX, M.L.; CALLEROS, L.; ARÁOZ, V.; CAFFARENA, D.; MONESIGLIO, M.C.; BARCELLOS, M.; SILVEIRA, C.S.; PERDOMO, T.; BANCHERO, G.; UZAL, F.A.; FRAGA, M.; GIANNITTI, F. Corrigendum to "Placentitis and abortion caused by a multidrug resistant strain of Campylobacter fetus subspecies fetus in a sheep in Uruguay". (Revista Argentina de Microbiologia (2022) 54(1) (25-30), (S0325754121000389), (10.1016/j.ram.2021.02.005)). Erratum. Revista Argentina de Microbiologia. 2023, Volume 55, Issue 4, Pages 397-398. https://doi.org/10.1016/j.ram.2023.11.002 -- OPEN ACCESS. Article history: Available online 21 December 2023; Version of Record 21 December 2023. -- Correspondence: Giannitti, F.; Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria (INIA), Ruta 50 Km 11,...Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA Las Brujas. |
| |
Registros recuperados : 22 | |
|
Expresión de búsqueda válido. Check! |
|
|