1
|
Lepore T, Macrae AI, Cantón GJ, Cantile C, Martineau HM, Palarea-Albaladejo J, Cahalan S, Underwood C, Katzer F, Chianini F. Evaluation of species-specific polyclonal antibodies to detect and differentiate between Neospora caninum and Toxoplasma gondii. J Vet Diagn Invest 2024:10406387241234322. [PMID: 38420701 DOI: 10.1177/10406387241234322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024] Open
Abstract
Neosporosis and toxoplasmosis are major causes of abortion in livestock worldwide, leading to substantial economic losses. Detection tools are fundamental to the diagnosis and management of those diseases. Current immunohistochemistry (IHC) tests, using sera raised against whole parasite lysates, have not been able to distinguish between Toxoplasma gondii and Neospora caninum. We used T. gondii and N. caninum recombinant proteins, expressed in Escherichia coli and purified using insoluble conditions, to produce specific polyclonal rabbit antisera. We aimed to develop species-specific sera that could be used in IHC on formalin-fixed, paraffin-embedded (FFPE) tissue sections to improve the diagnosis of ruminant abortions caused by protozoa. Two polyclonal rabbit sera, raised against recombinant proteins, anti-Neospora-rNcSRS2 and anti-Toxoplasma-rTgSRS2, had specificity for the parasite they were raised against. We tested the specificity for each polyclonal serum using FFPE tissue sections known to be infected with T. gondii and N. caninum. The anti-Neospora-rNcSRS2 serum labeled specifically only N. caninum-infected tissue blocks, and the anti-Toxoplasma-rTgSRS2 serum was specific to only T. gondii-infected tissues. Moreover, tissues from 52 cattle and 19 sheep previously diagnosed by lesion profiles were tested using IHC with our polyclonal sera and PCR. The overall agreement between IHC and PCR was 90.1% for both polyclonal anti-rNcSRS2 and anti-rTgSRS2 sera. The polyclonal antisera were specific and allowed visual confirmation of protozoan parasites by IHC, but they were not as sensitive as PCR testing.
Collapse
Affiliation(s)
| | - Alastair I Macrae
- Royal (Dick) School of Veterinary Studies and the Roslin Institute, Scotland, UK
| | - Germán J Cantón
- Instituto Nacional de Tecnología Agropecuaria, Balcarce, Argentina
| | | | - Henny M Martineau
- Department of Infectious Diseases, Royal Veterinary College, London, UK
| | | | - Stephen Cahalan
- Department of Infectious Diseases, Royal Veterinary College, London, UK
| | | | | | | |
Collapse
|
2
|
Fiorentino MA, Acuña Y, Sosa E, Cantón GJ, Erreguerena I, Malena R, Mendez MA, Morrell EL, García JA. Infectious sporadic bovine abortions: retrospective analysis. Trop Anim Health Prod 2024; 56:63. [PMID: 38291289 DOI: 10.1007/s11250-024-03892-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/05/2024] [Indexed: 02/01/2024]
Abstract
Infectious sporadic abortions in cattle are mainly caused by opportunistic bacteria and fungi usually present in environmental or gastrointestinal and reproductive microbiota of healthy animals. A retrospective analysis was carried out to evaluate the main opportunistic microorganisms involved in bovine abortions recorded at INTA Balcarce (Argentina) from 1997 to 2023, accounting for 2.2% of the total diagnosed etiologies of bovine abortion. The opportunistic agents identified as the cause of abortion in 29 fetuses were bacteria (90%) and fungi (10%). Escherichia coli (n = 8), Trueperella pyogenes (n = 5), and Histophilus somni (n = 4) were the bacterial species most often identified as causing infectious abortions, whereas Aspergillus spp. (n = 3) was implicated in all fungal abortions identified. Pure culture of bacteria or fungus was achieved from abomasal content and/or lung essential. Main microscopic findings were bronchopneumonia, myo- and epicarditis, meningitis, and portal hepatitis. Herein, we highlight the importance of detecting potential infectious bacteria in cultures to improve etiological diagnosis of bovine abortions associated with compatible microscopic findings to confirm the etiology.
Collapse
Affiliation(s)
- María A Fiorentino
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Balcarce, Buenos Aires, Argentina.
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, Balcarce, Buenos Aires, Argentina.
| | - Yamila Acuña
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Balcarce, Buenos Aires, Argentina
| | - Emiliano Sosa
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Balcarce, Buenos Aires, Argentina
| | - Germán J Cantón
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Balcarce, Buenos Aires, Argentina
| | - Ignacio Erreguerena
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Balcarce, Buenos Aires, Argentina
| | - Rosana Malena
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Balcarce, Buenos Aires, Argentina
| | - María A Mendez
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Balcarce, Buenos Aires, Argentina
| | - Eleonora L Morrell
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Balcarce, Buenos Aires, Argentina
| | - Juan A García
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Balcarce, Buenos Aires, Argentina
| |
Collapse
|
3
|
García JA, Livio JM, Matto C, Dutra F, Scioli V, Giannitti F, Langston J, Poppenga RH, Cantón GJ, Uzal FA. Pollen beetle ( Astylus atromaculatus)-associated gastroenteric disease in cattle: report of 6 natural outbreaks. J Vet Diagn Invest 2024; 36:95-102. [PMID: 38018662 PMCID: PMC10734591 DOI: 10.1177/10406387231215756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023] Open
Abstract
Astylus atromaculatus is a pollen beetle native to South America, commonly found in crop flowers. Experimental intoxication of sheep and guinea pigs by this beetle resulting in fibrinonecrotizing enteritis has been reported. We describe here 6 natural outbreaks of intoxication in cattle associated with consumption of alfalfa (5 of 6) and mixed native (1 of 6) pastures heavily contaminated with A. atromaculatus. The outbreaks occurred during the summer (January-February) of 2023 in Argentina (n = 4) and Uruguay (n = 2), in beef cattle under extensive or semi-extensive rearing systems, with overall cumulative incidence and mortality of 22.3% and 17.8%, respectively. The main clinical signs included acute onset of anorexia, lethargy, hyperthermia, hindlimb weakness, reluctance to move, and diarrhea, for up to 15 d. In 2 outbreaks, sudden death was observed. Eight Hereford, Angus, and/or crossbreed heifers, cows, steers, and/or calves were autopsied. Gross and microscopic findings included multifocal necrosis with fibrinous pseudomembranes in the forestomachs and/or small and large intestines. Fragments or whole specimens of A. atromaculatus were identified in the ruminal content of all animals. Testing for multiple gastroenteric pathogens was negative as was testing of A. atromaculatus for cantharidin and batrachotoxin. GC-MS and LC-MS/MS performed on the beetles did not identify any known toxic compounds. Based on the exposure to A. atromaculatus-contaminated pasture, gross and microscopic lesions, and negative results of all testing for multiple gastroenteric pathogens, a diagnosis of intoxication by A. atromaculatus is proposed. Disease caused by A. atromaculatus consumption has not been reported previously in cattle, to our knowledge.
Collapse
Affiliation(s)
- Juan A. García
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Buenos Aires, Argentina
| | - Juan M. Livio
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Buenos Aires, Argentina
| | - Carolina Matto
- Ministerio de Ganadería, Agricultura y Pesca (MGAP) Dilave “Miguel C. Rubino”, Laboratorio Regional Noroeste, Paysandú, Uruguay
| | | | - Valeria Scioli
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Buenos Aires, Argentina
| | - Federico Giannitti
- Instituto Nacional de Investigación Agropecuaria (INIA), Plataforma de Investigación en Salud Animal, Estación Experimental La Estanzuela, Colonia, Uruguay
| | - James Langston
- Davis branches, School of Veterinary Medicine, University of California–Davis, CA, USA
| | - Robert H. Poppenga
- Davis branches, School of Veterinary Medicine, University of California–Davis, CA, USA
| | - Germán J. Cantón
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS) Balcarce, Buenos Aires, Argentina
| | - Francisco A. Uzal
- California Animal Health and Food Safety Laboratory, San Bernardino branches, School of Veterinary Medicine, University of California–Davis, CA, USA
| |
Collapse
|
4
|
Burucúa MM, Risalde MA, Cheuquepán FA, Quintana S, Pérez SE, Cantón GJ, Moore DP, Odeón AC, Agulló-Ros I, Scioli MV, Barbeito C, Morrell EL, Marín MS. Transplacental infection by bovine alphaherpesvirus type 1 induces protein expression of COX-2, iNOS and inflammatory cytokines in fetal lungs and placentas. Vet Microbiol 2023; 287:109912. [PMID: 37952263 DOI: 10.1016/j.vetmic.2023.109912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 11/01/2023] [Accepted: 11/04/2023] [Indexed: 11/14/2023]
Abstract
Bovine alphaherpesvirus type 1 (BoAHV-1) is associated with respiratory and reproductive syndromes. Until present the immunologic mechanisms involved in BoAHV-1 abortion are partially known. We studied key elements of the innate immune response in the placentas and fetal lungs from cattle experimentally-inoculated with BoAHV-1. These tissues were analyzed by histopathology. Furthermore, virus identification was performed by qPCR and the expression of the inflammatory cytokines such as tumor necrosis factor-alpha, interleukin 1-alpha and inflammatory mediators like inducible nitric oxide synthase and cyclooxeganse-2 was evaluated by immunohistochemistry. The viral transplacental infection was confirmed by the detection of BoAHV-1 by qPCR in the placenta and fetal organs, which revealed mild inflammatory lesions. Inducible nitric oxide synthase immunolabelling was high in the lungs of infected fetuses and placentas, as well as for tumor necrosis factor-alpha in the pulmonary parenchyma and cyclooxeganse-2 in fetal annexes. However, the expression of interleukin 1-alpha was weak in these organs. To our knowledge, this is the first study that provides strong evidence of an early immune response to BoAHV-1 infection in the conceptus. Advances in the knowledge of the complex immunological interactions at the feto-maternal unit during BoAHV-1 infection are needed to clarify the pathogenesis of abortion.
Collapse
Affiliation(s)
- Mercedes M Burucúa
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, Balcarce, Buenos Aires, Argentina
| | - María A Risalde
- Departamento de Anatomía y Anatomía Patológica Comparadas y Toxicología, Grupo de Investigación GISAZ, UIC Zoonosis y Enfermedades Emergentes ENZOEM, Universidad de Córdoba, Córdoba, Spain
| | - Felipe A Cheuquepán
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, Balcarce, Buenos Aires, Argentina
| | - Silvina Quintana
- Instituto de Investigaciones de Producción, Sanidad y Ambiente (IIPROSAM), FCEyN, UNMDP-CONICET, Mar del Plata, Buenos Aires, Argentina; Instituto de Biología Molecular Aplicada, Mar del Plata, Buenos Aires, Argentina
| | - Sandra E Pérez
- Centro de Investigaciones Veterinarias de Tandil (CIVETAN) - CONICET, Facultad de Ciencias Veterinarias, UNCPBA, Tandil, Buenos Aires, Argentina
| | - Germán J Cantón
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, Balcarce, Buenos Aires, Argentina
| | - Dadin P Moore
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, Balcarce, Buenos Aires, Argentina; Facultad de Ciencias Agrarias, UNMdP, Balcarce, Buenos Aires, Argentina
| | - Anselmo C Odeón
- Facultad de Ciencias Agrarias, UNMdP, Balcarce, Buenos Aires, Argentina
| | - Irene Agulló-Ros
- Departamento de Anatomía y Anatomía Patológica Comparadas y Toxicología, Grupo de Investigación GISAZ, UIC Zoonosis y Enfermedades Emergentes ENZOEM, Universidad de Córdoba, Córdoba, Spain
| | - María Valeria Scioli
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, Balcarce, Buenos Aires, Argentina
| | - Claudio Barbeito
- Laboratorio de Histología y Embriología Descriptiva Experimental y Comparada (LHYEDEC), Facultad de Ciencias Veterinarias, UNLP, CONICET, Buenos Aires, Argentina
| | - Eleonora L Morrell
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, Balcarce, Buenos Aires, Argentina.
| | - Maia S Marín
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, Balcarce, Buenos Aires, Argentina
| |
Collapse
|
5
|
Campero LM, Basso W, Moré G, Fiorani F, Hecker YP, Echaide I, Cantón GJ, Cirone KM, Campero CM, Venturini MC, Moore DP. Neosporosis in Argentina: Past, present and future perspectives. Vet Parasitol Reg Stud Reports 2023; 41:100882. [PMID: 37208088 DOI: 10.1016/j.vprsr.2023.100882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/20/2023] [Indexed: 05/21/2023]
Abstract
Neosporosis, caused by the protozoan Neospora caninum, was first diagnosed in Argentinean cattle in the 90's. With a national bovine stock of approximately 53 million head, the cattle industry is socially and economically relevant. Severe economic losses have been estimated at US$ 33 and 12 million annually in dairy and beef cattle, respectively. Approximately 9% of bovine abortions in the Buenos Aires province are caused by N. caninum. In 2001, the first isolation of N. caninum oocysts from feces of a naturally infected dog was performed in Argentina and named as NC-6 Argentina. Further strains were isolated from cattle (NC-Argentina LP1, NC-Argentina LP2) and axis deer (Axis axis, NC-Axis). Epidemiological studies revealed a high distribution of Neospora-infections not only in dairy but also in beef cattle, with seroprevalence rates of 16.6-88.8% and 0-73%, respectively. Several experimental infection studies in cattle have been carried out, as well as attempts to develop effective vaccines to avoid Neospora-abortions and transmission. However, no vaccine has proven successful for its use in daily practice. Reduction of seroprevalence, vertical transmission and Neospora-related abortions have been achieved in dairy farms by the use of selective breeding strategies and embryo transfer. Neospora-infections have been also detected in goats, sheep, deer, water buffaloes (Bubalus bubalis) and gray foxes (Lycalopex griseus). Moreover, Neospora-related reproductive losses were reported in small ruminants and deer species and could be more frequent than previously thought. Even though diagnostic methods have been improved during the last decades, control of neosporosis is still not optimal. The development of new strategies including new antiprotozoal drugs and vaccines is highly needed. This paper reviews the information from the previous 28 years of research of N. caninum in Argentina, including seroprevalence and epidemiological studies, available diagnostic techniques, experimental reproduction, immunization strategies, isolations and control measures in domestic and non-domestic animals from Argentina.
Collapse
Affiliation(s)
- L M Campero
- National Scientific and Technical Research Council (CONICET), Godoy Cruz, 2290, C1033AAJ Buenos Aires, Argentina; Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), Ruta 226, km 73.5, 7620 Balcarce, Argentina
| | - W Basso
- Institute of Parasitology, Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Länggassstrasse 122, CH-3012 Bern, Switzerland
| | - G Moré
- National Scientific and Technical Research Council (CONICET), Godoy Cruz, 2290, C1033AAJ Buenos Aires, Argentina; Institute of Parasitology, Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Länggassstrasse 122, CH-3012 Bern, Switzerland
| | - F Fiorani
- National Scientific and Technical Research Council (CONICET), Godoy Cruz, 2290, C1033AAJ Buenos Aires, Argentina; Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), Ruta 226, km 73.5, 7620 Balcarce, Argentina; Faculty of Agrarian Sciences, National University of Mar del Plata (UNMdP), Ruta 226, km 73.5, 7620 Balcarce, Argentina
| | - Y P Hecker
- National Scientific and Technical Research Council (CONICET), Godoy Cruz, 2290, C1033AAJ Buenos Aires, Argentina; Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), Ruta 226, km 73.5, 7620 Balcarce, Argentina; SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, 28040 Madrid, Spain
| | - I Echaide
- National Institute of Agricultural Technology, INTA E.E.A, Rafaela, Argentina
| | - G J Cantón
- National Institute of Agricultural Technology, INTA E.E.A Balcarce, Ruta 226, km 73.5, 7620 Balcarce, Argentina
| | - K M Cirone
- Faculty of Agrarian Sciences, National University of Mar del Plata (UNMdP), Ruta 226, km 73.5, 7620 Balcarce, Argentina; National Institute of Agricultural Technology, INTA E.E.A Balcarce, Ruta 226, km 73.5, 7620 Balcarce, Argentina
| | - C M Campero
- National Institute of Agricultural Technology, INTA E.E.A Balcarce, Ruta 226, km 73.5, 7620 Balcarce, Argentina
| | - M C Venturini
- Immunoparasitology Laboratory, Veterinary Sciences Faculty, National University of La Plata, 60 and 118 s/n, 1900 La Plata, Argentina
| | - D P Moore
- National Scientific and Technical Research Council (CONICET), Godoy Cruz, 2290, C1033AAJ Buenos Aires, Argentina; Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), Ruta 226, km 73.5, 7620 Balcarce, Argentina; Faculty of Agrarian Sciences, National University of Mar del Plata (UNMdP), Ruta 226, km 73.5, 7620 Balcarce, Argentina.
| |
Collapse
|
6
|
Cantón GJ, Navarro MA, Asin J, Chu P, Henderson EE, Mete A, Uzal FA. Equine abortion and stillbirth in California: a review of 1,774 cases received at a diagnostic laboratory, 1990-2022. J Vet Diagn Invest 2023; 35:153-162. [PMID: 36744759 PMCID: PMC9999402 DOI: 10.1177/10406387231152788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Reproductive failure represents an important cause of economic loss for the equine industry. We reviewed the cases of equine abortion and stillbirth submitted to the California Animal Health and Food Safety Laboratory System, University of California-Davis from 1990 to 2022. A total of 1,774 cases were reviewed. A confirmed cause of abortion was determined in 29.2% of the cases. Abortion or stillbirth was attributed to infectious agents in 18.7% of the cases, with Streptococcus spp., equine herpesvirus 1, and Leptospira spp. being the most prevalent. Noninfectious causes of abortion were established in 10.5% of the cases, with umbilical cord torsion being the most common. In 70.8% of the cases, a definitive cause of abortion could not be established. Our study demonstrated the difficulties in establishing an etiologic diagnosis, even when following a standard diagnostic work-up. New diagnostic approaches are needed to improve the likelihood of reaching a final diagnosis in cases of equine abortion and stillbirth.
Collapse
Affiliation(s)
- Germán J. Cantón
- National Institute of Agricultural Technology, Balcarce, Argentina
| | - Mauricio A. Navarro
- Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Javier Asin
- California Animal Health and Food Safety Laboratory System, San Bernardino, Laboratories, School of Veterinary Medicine, University of California–Davis, CA, USA
| | - Peter Chu
- Davis, Laboratories, School of Veterinary Medicine, University of California–Davis, CA, USA
| | - Eileen E. Henderson
- California Animal Health and Food Safety Laboratory System, San Bernardino, Laboratories, School of Veterinary Medicine, University of California–Davis, CA, USA
| | - Asli Mete
- Davis, Laboratories, School of Veterinary Medicine, University of California–Davis, CA, USA
| | - Francisco A. Uzal
- California Animal Health and Food Safety Laboratory System, San Bernardino, Laboratories, School of Veterinary Medicine, University of California–Davis, CA, USA
| |
Collapse
|
7
|
Cantón GJ, Uriarte ELL, Moore DP. Editorial: Diseases affecting reproduction and the neonatal period in ruminants, Volume II. Front Vet Sci 2022; 9:1025209. [PMID: 36213419 PMCID: PMC9536490 DOI: 10.3389/fvets.2022.1025209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/24/2022] Open
Affiliation(s)
- Germán J. Cantón
- Animal Production Department, Institute of Innovation for Agricultural Production and Sustainable Development (IIPADS), Balcarce, Argentina
- *Correspondence: Germán J. Cantón
| | - Enrique L. Louge Uriarte
- Animal Production Department, Institute of Innovation for Agricultural Production and Sustainable Development (IIPADS), Balcarce, Argentina
| | - Dadín P. Moore
- Animal Production Department, Institute of Innovation for Agricultural Production and Sustainable Development (IIPADS), Balcarce, Argentina
- Faculty of Agricultural Sciences, National University of Mar del Plata, Mar del Plata, Argentina
| |
Collapse
|
8
|
Cantón GJ, Moreno F, Fiorentino MA, Hecker YP, Spetter M, Fiorani F, Monterubbianesi MG, García JA, Altamiranda EG, Cirone KM, Louge Uriarte EL, Verna AE, Marin M, Cheuquepán F, Malena R, Morsella C, Paolicchi FA, Morrell EL, Moore DP. Spatial-temporal trends and economic losses associated with bovine abortifacients in central Argentina. Trop Anim Health Prod 2022; 54:242. [PMID: 35907064 DOI: 10.1007/s11250-022-03237-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 07/13/2022] [Indexed: 11/24/2022]
Abstract
The aims of this work are, firstly, to provide the geolocalization of cases of bovine abortion with definitive diagnosis and, secondly, to estimate the economic losses due to the most frequent abortifacients diagnosed agents in cattle in Buenos Aires province, Argentina. The total beef and dairy cattle population at risk of abortion is 8,358,186 and 538,076, respectively. In beef cattle, the overall risk of abortion was estimated at 4.5% for all pregnancies, where 27.9% are due to Campylobacter fetus, Neospora caninum, Leptospira spp., Brucella abortus, and bovine viral diarrhea virus with economic losses of US$ 440 per abortion, being the annual loss to the beef industry of US$ 50,144,101. In dairy cattle, there was an 8.0% risk of suffering abortion, 26.1% produced by the same abortigenic agents. The economic losses were estimated at US$ 1,415 per abortion, which equals a total loss of US$ 17,298,498 for the dairy industry in the region. The results of this study show that infectious causes are highly prevalent in Buenos Aires province, and they caused severe economic impacts in the dairy and beef industries. Furthermore, changes in temporal trends of infectious abortion occurrence were detected, probably related to the inclusion of molecular diagnostic techniques with more sensitivity or different epidemiological or husbandry conditions in the region analyzed.
Collapse
Affiliation(s)
- Germán J Cantón
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina.
| | - Fabiana Moreno
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - María A Fiorentino
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina.,Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620, Balcarce, Argentina
| | - Yanina P Hecker
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - Maximiliano Spetter
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - Franco Fiorani
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina.,Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620, Balcarce, Argentina
| | - María G Monterubbianesi
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620, Balcarce, Argentina
| | - Juan A García
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - Erika González Altamiranda
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - Karina M Cirone
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina.,Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620, Balcarce, Argentina
| | - Enrique L Louge Uriarte
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - Andrea E Verna
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - Maia Marin
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - Felipe Cheuquepán
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - Rosana Malena
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - Claudia Morsella
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - Fernando A Paolicchi
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina.,Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620, Balcarce, Argentina
| | - Eleonora L Morrell
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina
| | - Dadin P Moore
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), INTA-CONICET, 7620, Balcarce, Argentina.,Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620, Balcarce, Argentina
| |
Collapse
|
9
|
Hecker YP, Burucúa MM, Fiorani F, Maldonado Rivera JE, Cirone KM, Dorsch MA, Cheuquepán FA, Campero LM, Cantón GJ, Marín MS, Ortega-Mora LM, Moore DP. Reactivation and Foetal Infection in Pregnant Heifers Infected with Neospora caninum Live Tachyzoites at Prepubertal Age. Vaccines (Basel) 2022; 10:vaccines10081175. [PMID: 35893824 PMCID: PMC9330614 DOI: 10.3390/vaccines10081175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/14/2022] [Accepted: 07/22/2022] [Indexed: 12/04/2022] Open
Abstract
Neospora caninum is recognised for causing cattle abortion, provoking severe economic losses in the livestock industry worldwide. The aim of the present study was to evaluate the reactivation and foetal infection in pregnant heifers inoculated with live N. caninum tachyzoites before puberty. A total of 15 30-month-old pregnant heifers were allocated into four groups: animals inoculated with live tachyzoites of NC-Argentina LP1 isolate before puberty and challenged with live tachyzoites of NC-1 strain at 210 days of gestation (DG) (Group A); animals mock inoculated before puberty and challenged with NC-1 strain at 210 DG (Group B), animals inoculated before puberty but not subsequently challenged (Group C); and noninfected and nonchallenged animals (Group D). The results of this study showed that 100% of animals infected before puberty (Groups A and C) suffered reactivation of the infection at the seventh month of gestation. In addition, in three and two calves from Groups A and C, respectively, congenital infection was confirmed. Interestingly, we provide evidence that the use of live N. caninum tachyzoites in young animals as a strategy to induce protection is neither safe nor effective.
Collapse
Affiliation(s)
- Yanina P. Hecker
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS), Instituto Nacional de Tecnología Agropecuaria (INTA)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce 7620, Argentina; (M.M.B.); (F.F.); (K.M.C.); (F.A.C.); (L.M.C.); (G.J.C.); (M.S.M.); (D.P.M.)
- Correspondence: ; Tel.: +54-02266-439100 (ext. 365)
| | - Mercedes M. Burucúa
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS), Instituto Nacional de Tecnología Agropecuaria (INTA)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce 7620, Argentina; (M.M.B.); (F.F.); (K.M.C.); (F.A.C.); (L.M.C.); (G.J.C.); (M.S.M.); (D.P.M.)
| | - Franco Fiorani
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS), Instituto Nacional de Tecnología Agropecuaria (INTA)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce 7620, Argentina; (M.M.B.); (F.F.); (K.M.C.); (F.A.C.); (L.M.C.); (G.J.C.); (M.S.M.); (D.P.M.)
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, Balcarce 7620, Argentina; (J.E.M.R.); (M.A.D.)
| | - Jaime E. Maldonado Rivera
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, Balcarce 7620, Argentina; (J.E.M.R.); (M.A.D.)
- Facultad de Ciencias Agropecuarias, Universidad de Cuenca, Cuenca 010205, Ecuador
| | - Karina M. Cirone
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS), Instituto Nacional de Tecnología Agropecuaria (INTA)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce 7620, Argentina; (M.M.B.); (F.F.); (K.M.C.); (F.A.C.); (L.M.C.); (G.J.C.); (M.S.M.); (D.P.M.)
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, Balcarce 7620, Argentina; (J.E.M.R.); (M.A.D.)
| | - Matías A. Dorsch
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, Balcarce 7620, Argentina; (J.E.M.R.); (M.A.D.)
- Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria (INIA), Estación Experimental La Estanzuela, Colonia 70000, Uruguay
| | - Felipe A. Cheuquepán
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS), Instituto Nacional de Tecnología Agropecuaria (INTA)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce 7620, Argentina; (M.M.B.); (F.F.); (K.M.C.); (F.A.C.); (L.M.C.); (G.J.C.); (M.S.M.); (D.P.M.)
| | - Lucía M. Campero
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS), Instituto Nacional de Tecnología Agropecuaria (INTA)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce 7620, Argentina; (M.M.B.); (F.F.); (K.M.C.); (F.A.C.); (L.M.C.); (G.J.C.); (M.S.M.); (D.P.M.)
| | - Germán J. Cantón
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS), Instituto Nacional de Tecnología Agropecuaria (INTA)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce 7620, Argentina; (M.M.B.); (F.F.); (K.M.C.); (F.A.C.); (L.M.C.); (G.J.C.); (M.S.M.); (D.P.M.)
| | - Maia S. Marín
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS), Instituto Nacional de Tecnología Agropecuaria (INTA)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce 7620, Argentina; (M.M.B.); (F.F.); (K.M.C.); (F.A.C.); (L.M.C.); (G.J.C.); (M.S.M.); (D.P.M.)
| | - Luis M. Ortega-Mora
- SALUVET, Departamento de Sanidad Animal, Facultad de Ciencias Veterinarias, Universidad Complutense de Madrid, 28040 Madrid, Spain;
| | - Dadín P. Moore
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS), Instituto Nacional de Tecnología Agropecuaria (INTA)—Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce 7620, Argentina; (M.M.B.); (F.F.); (K.M.C.); (F.A.C.); (L.M.C.); (G.J.C.); (M.S.M.); (D.P.M.)
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, Balcarce 7620, Argentina; (J.E.M.R.); (M.A.D.)
| |
Collapse
|
10
|
Della Rosa P, Fiorentino MA, Morrell EL, Scioli MV, Paolicchi FA, Moore DP, Cantón GJ, Hecker YP. Neospora caninum and Toxoplasma gondii as causes of reproductive losses in commercial sheep flocks from Argentina. Curr Res Parasitol Vector Borne Dis 2022; 1:100057. [PMID: 35284874 PMCID: PMC8906136 DOI: 10.1016/j.crpvbd.2021.100057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/12/2021] [Accepted: 10/27/2021] [Indexed: 02/01/2023]
Abstract
The aim of this study is to provide preliminary data about the occurrence of Neospora caninum- and Toxoplasma gondii-related abortions and perinatal deaths in sheep from Argentina. Thirty ovine aborted foetuses and 33 perinatal deaths were submitted to the Veterinary Diagnostic Service at INTA EEA Balcarce (Argentina) during 2017–2019. A complete necropsy was performed on all specimens submitted, and foetal and placental tissues were examined. Foetal cavity fluids were collected for assessment of antibodies to N. caninum and T. gondii by indirect fluorescent antibody technique (IFAT). Placental and foetal tissue samples were collected for DNA extraction and histopathological analysis. The differential diagnosis with other causes of abortion was carried out. Of the sampled specimens, 20.63% (13/63) displayed evidence for N. caninum infection by IFAT and PCR, and in 61.5% (8/13) of the positive specimens the parasite was confirmed as the cause of abortion/perinatal death based on the presence of compatible histological lesions and/or positive immunohistochemistry test, positive PCR and/or positive IFAT, and no other infectious agents diagnosed. In contrast, T. gondii infection was confirmed in 9.52% (6/63) of the analysed specimens, but only in 2 lambs T. gondii was determined as the death cause. Neosporacaninum and T. gondii co-infections were confirmed in 4 analysed specimens (2 aborted foetuses and 2 perinatal deaths). These results demonstrated that N. caninum is efficiently transmitted and a frequent cause of ovine reproductive failure in the commercial analysed flocks compared with T. gondii. Despite T. gondii congenital infection was detected in some specimens (6/63), it was confirmed as the cause of death in only two of them. Thus, and considering the limited availability of confirmed samples, we could not determine whether toxoplasmosis is a major problem in Argentinian sheep flocks or not. More studies on a greater number of specimens from different ovine production systems under different management conditions are necessary to assess the real impact of neosporosis and toxoplasmosis in Argentina. Neospora caninum congenital infection was found in 13 of the 63 analysed specimens. In 8 of these 13 cases, N. caninum was confirmed as the cause of abortion/perinatal death. Toxoplasma gondii was determined as the perinatal death cause in 2 lambs. Co-infections with N. caninum + T. gondii were only confirmed in 4 analysed specimens.
Collapse
Affiliation(s)
- Paola Della Rosa
- National Institute of Agricultural Technology (INTA), W3470, Mercedes, Argentina
| | - María A Fiorentino
- National Institute of Agricultural Technology (INTA), 7620, Balcarce, Argentina
| | - Eleonora L Morrell
- National Institute of Agricultural Technology (INTA), 7620, Balcarce, Argentina
| | - María V Scioli
- National Institute of Agricultural Technology (INTA), 7620, Balcarce, Argentina
| | | | - Dadín P Moore
- National Institute of Agricultural Technology (INTA), 7620, Balcarce, Argentina.,Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), INTA-CONICET, Balcarce, 7620, Argentina
| | - Germán J Cantón
- National Institute of Agricultural Technology (INTA), 7620, Balcarce, Argentina
| | - Yanina P Hecker
- National Institute of Agricultural Technology (INTA), 7620, Balcarce, Argentina.,Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), INTA-CONICET, Balcarce, 7620, Argentina
| |
Collapse
|
11
|
Cirone KM, Fiorani F, García CE, Armendano JI, Hecker YP, Miqueo E, Cantón GJ, Moore DP. Frequency of Neospora caninum-specific antibodies in bulk milk from dairy farms from Mar y Sierras Dairy Basin, Argentina. Vet Parasitol Reg Stud Reports 2021; 26:100646. [PMID: 34879957 DOI: 10.1016/j.vprsr.2021.100646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 09/05/2021] [Accepted: 09/17/2021] [Indexed: 11/16/2022]
Abstract
The aim of this study was to describe the prevalence of Neospora caninum based on the detection of specific antibodies in bulk tank milk (BTM) from dairy cattle farms in the Mar y Sierras Basin by using an enzyme-linked immunosorbent assay (ELISA). A total of 98 BTM samples from 49 dairy farms were collected during autumn and spring of 2019. Additionally, 147 paired individual milk and serum samples were collected from two dairy farms to assess the prevalence within-herd by ELISA and indirect fluorescent antibody test (IFAT, serum samples). Additionally, 12 individual serum samples were also assessed to test the agreement between IFAT and ELISA (total serum samples 159). Noteworthy, 100 and 91.84% of 49 dairy farms were positive in the BTM in autumn and spring, respectively. For the within-herd individual samples, a good agreement between serum and milk results was obtained for ELISA and IFAT (0.86-0.90). This is the first study in Argentina in which milk samples were tested to determine the N. caninum infection status at herd and within-herd levels in dairy farms, providing a base for further research.
Collapse
Affiliation(s)
- K M Cirone
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620 Balcarce, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Balcarce, 7620 Balcarce, Argentina
| | - F Fiorani
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620 Balcarce, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida Rivadavia 1917, CABA, Argentina
| | - C E García
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620 Balcarce, Argentina
| | - J I Armendano
- Departamento de Fisiopatología, Facultad de Ciencias Veterinarias, Universidad Nacional del Centro de la Provincia de Buenos Aires, Paraje Arroyo Seco s/n, 7000 Tandil, Argentina
| | - Y P Hecker
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida Rivadavia 1917, CABA, Argentina
| | - E Miqueo
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620 Balcarce, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida Rivadavia 1917, CABA, Argentina
| | - G J Cantón
- Instituto Nacional de Tecnología Agropecuaria (INTA), Balcarce, 7620 Balcarce, Argentina
| | - D P Moore
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620 Balcarce, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida Rivadavia 1917, CABA, Argentina.
| |
Collapse
|
12
|
Dorsch MA, Cantón GJ, Driemeier D, Anderson ML, Moeller RB, Giannitti F. Bacterial, protozoal and viral abortions in sheep and goats in South America: A review. Small Rumin Res 2021. [DOI: 10.1016/j.smallrumres.2021.106547] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
13
|
Aguirre LS, Cantón GJ, Morrell EL, Sandoval GV, Medina DM, Avellaneda-Cáceres A, Micheloud JF. Retrospective analysis of hairy vetch (Vicia villosa roth) poisoning in Argentina (2004-2019). Toxicon 2021; 200:134-139. [PMID: 34314765 DOI: 10.1016/j.toxicon.2021.07.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/20/2021] [Accepted: 07/21/2021] [Indexed: 11/25/2022]
Abstract
Hairy vetch (Vicia villosa) poisoning in cattle is characterized by a systemic granulomatous inflammatory response that resembles a type-IV hypersensitivity reaction. Hairy vetch toxicity has been described in cattle worldwide. The aim of this paper was to describe 10 outbreaks of hairy vetch poisoning in cattle studied at INTA EEA Salta and INTA EEA Balcarce, Argentina, from 2004 to 2019. Clinical signs included weakness, pyrexia, dermatitis, alopecia, and progressive weight loss, which leads to death over a clinical course of approximately two weeks. A total of 12 necropsies were performed and tissue samples were collected for histopathology. The main gross changes were observed in skin, lymph nodes, liver, heart, spleen and kidneys. Other tissues, such as pancreas, thyroid, and adrenal glands, were also affected. Histological lesions consisted of multifocal to diffuse granulomatous inflammation in those organs. The toxicity of hairy vetch has been described in several countries of the world. In Argentina, the use of hairy vetch as a cover crop has become common in some regions during the past years. The data suggest that hairy vetch poisoning is an important disease in cattle. More studies are needed to contribute with further information.
Collapse
Affiliation(s)
- Laura S Aguirre
- Facultad de Ciencias Agrarias y Veterinarias-UCASAL, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina; CONICET, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina.
| | - Germán J Cantón
- INTA-Balcarce, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina
| | - Eleonora L Morrell
- INTA-Balcarce, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina
| | - Gabriela V Sandoval
- Facultad de Ciencias Agrarias y Veterinarias-UCASAL, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina; CONICET, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina
| | - Diego M Medina
- Facultad de Ciencias Agrarias y Veterinarias-UCASAL, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina
| | - Agustín Avellaneda-Cáceres
- Facultad de Ciencias Agrarias y Veterinarias-UCASAL, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina; CONICET, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina
| | - Juan F Micheloud
- Facultad de Ciencias Agrarias y Veterinarias-UCASAL, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina; Grupo de Trabajo de Patología, Epidemiología e Investigación Diagnóstica. Área de Sanidad Animal-IIACS Salta/INTA, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina; CONICET, INTA EEA Salta, RN 68 Km 172, 4403 Cerrillos, Salta, Argentina
| |
Collapse
|
14
|
Moore DP, Cantón GJ, Louge Uriarte EL. Editorial: Infectious Diseases Affecting Reproduction and the Neonatal Period in Cattle. Front Vet Sci 2021; 8:679007. [PMID: 33969046 PMCID: PMC8100021 DOI: 10.3389/fvets.2021.679007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 03/22/2021] [Indexed: 11/23/2022] Open
Affiliation(s)
- Dadín P Moore
- Animal Production Department, Institute of Innovation for Agricultural Production and Sustainable Development (IIPADS), Balcarce, Argentina.,Faculty of Agricultural Sciences, National University of Mar del Plata, Mar del Plata, Argentina
| | - Germán J Cantón
- Animal Production Department, National Institute of Agricultural Technology (INTA), Balcarce, Argentina
| | - Enrique L Louge Uriarte
- Animal Production Department, National Institute of Agricultural Technology (INTA), Balcarce, Argentina
| |
Collapse
|
15
|
Maldonado Rivera JE, Hecker YP, Burucúa MM, Cirone KM, Cheuquepán FA, Fiorani F, Dorsch MA, Colque LA, Cantón GJ, Marin MS, Moore DP. Innate and humoral immune parameters at delivery in colostrum and calves from heifers experimentally infected with Neospora caninum. Mol Immunol 2021; 132:53-59. [PMID: 33545625 DOI: 10.1016/j.molimm.2021.01.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 10/10/2020] [Accepted: 01/19/2021] [Indexed: 11/29/2022]
Abstract
Neospora caninum is a leading cause of abortion in cattle worldwide. The study of the immune response against N. caninum is critical to understand its epidemiology, pathogenesis, diagnosis and, ultimately, in preventing and controlling bovine neosporosis. Herein, we determined the gene expression of innate immune components endosomal RNA-sensing TLRs, BMAP28 cathelicidin, TNF-α and IL-10 and characterized the variation in both IgG ratio and avidity at delivery in N. caninum-infected heifers challenged at day 210 of gestation, colostrum and their calves. Increased BMAP28 expression was observed not only in colostrum but also in peripheral blood mononuclear cells (PBMC) and umbilical cord of calves from N. caninum-infected heifers in comparison with mock-infected control group. In addition, statistically significant decrease of TLR7 and IL-10 expression levels were observed in umbilical cord, suggesting an attempt to avoid an exacerbated immune response against the parasite. At delivery, serum and colostrum samples from infected group evidenced specific IgG anti-N. caninum. Infected heifers showed IgG1/IgG2 ratios <1 and high avidity specific IgG. As expected, colostrum samples of these animals exhibited a high IgG1 concentration and elevated avidity values. Three out of four calves from N. caninum-infected heifers had specific IgG with IgG1/IgG2 ratios>1 and lower avidity values before colostrum intake. Interestingly, both IgG1/IgG2 ratios and avidity values increased in seropositive calves after colostrum intake. Overall, this study provides novel information on neonatal immunity in congenitally infected calves, which is essential to understand how the immune pathways could be manipulated or immune components could be employed in order to improve protection against neosporosis.
Collapse
Affiliation(s)
- J E Maldonado Rivera
- Faculty of Agrarian Sciences, National University of Mar del Plata, Argentina; Faculty of Agricultural Sciences, University of Cuenca, Ecuador
| | - Y P Hecker
- Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), Argentina
| | - M M Burucúa
- Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), Argentina
| | - K M Cirone
- Faculty of Agrarian Sciences, National University of Mar del Plata, Argentina; National Institute of Agricultural Technology (INTA), Argentina
| | - F A Cheuquepán
- Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), Argentina
| | - F Fiorani
- Faculty of Agrarian Sciences, National University of Mar del Plata, Argentina; Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), Argentina
| | - M A Dorsch
- Faculty of Agrarian Sciences, National University of Mar del Plata, Argentina
| | - L A Colque
- Faculty of Agrarian Sciences, National University of Mar del Plata, Argentina; National Institute of Agricultural Technology (INTA), Argentina
| | - G J Cantón
- National Institute of Agricultural Technology (INTA), Argentina
| | - M S Marin
- Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), Argentina
| | - D P Moore
- Faculty of Agrarian Sciences, National University of Mar del Plata, Argentina; Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), Argentina.
| |
Collapse
|
16
|
Fiorani F, Hecker YP, Cirone KM, Armendano JI, Gual I, Campero LM, Wilkowsky SE, Cobo ER, Corva PM, Morrell EL, Cantón GJ, Moore DP. Delayed-type hypersensitivity skin test against Neospora caninum in heifers with undetectable specific antibodies. Comp Immunol Microbiol Infect Dis 2020; 72:101522. [PMID: 32739729 DOI: 10.1016/j.cimid.2020.101522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/15/2020] [Accepted: 07/19/2020] [Indexed: 10/23/2022]
Abstract
Delayed-type hypersensitivity (DTH) has been used in human and veterinary medicine as a skin testing for evaluating in vivo cell-mediated immune responses (CMIR). Whereas CMIR is a key process to control intracellular pathogens, its value at identifying cattle exposed to the abortigenic intracellular coccidian parasite Neospora caninum is unknown. In this work, we have evaluated a DTH skin testing in cattle exposed to N. caninum and still seronegative. Female calves were experimentally sensitized by subcutaneous (SC) inoculation with live tachyzoites of N. caninum (NC-Argentina LP1) in sterile phosphate-buffered saline (PBS) (group A; n: 8) whereas other calveswere mock-sensitized with PBS (group B; n: 6). Two DTH skin tests were performed by intradermal inoculation with a soluble lysate of N. caninum tachyzoites (NC-Argentina LP1) in the neck region at 60d and 960 d after sensitization. Skinfold thickness at the intradermal inoculation site was measured at 0, 24, 48 h post each DTH skin test and skin biopsies taken for microscopic evaluation. Specific N. caninum antibodies kinetics was evaluated all throughthe experiment. We found that whereas N. caninum specific antibodies remained below the ELISA cut-off, a distinctive skinfold thickness increase was detected in sensitized animals (group A) at the DTH skin test site, showing induration, swelling and inflammatory infiltration. Mock sensitized animals (group B) showed no skinfold thickness growth and lacked specific antibody response. Thus, N. caninum DTH skin testing could be a useful diagnostic tool for the detection of CMIR during N. caninum infection in non-humoral responders.
Collapse
Affiliation(s)
- F Fiorani
- Institute of Innovation for Agricultural Production and Sustainable Development (IPADS), Argentina; College of Agricultural Sciences, National University of Mar Del Plata, Balcarce, 7620 Argentina
| | - Y P Hecker
- Institute of Innovation for Agricultural Production and Sustainable Development (IPADS), Argentina
| | - K M Cirone
- College of Agricultural Sciences, National University of Mar Del Plata, Balcarce, 7620 Argentina; National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina
| | - J I Armendano
- Faculty of Veterinary Sciences, National University of the Center of Buenos Aires, Tandil, 7000, Argentina
| | - I Gual
- College of Agricultural Sciences, National University of Mar Del Plata, Balcarce, 7620 Argentina
| | - L M Campero
- Institute of Innovation for Agricultural Production and Sustainable Development (IPADS), Argentina; Immunoparasitology Laboratory, Faculty of Veterinary Medicine, National University of La Plata, La Plata, Argentina
| | - S E Wilkowsky
- Instituto De Agrobiotecnología y Biología Molecular (IABIMO) INTA - CONICET, Castelar B1712WAA, Argentina
| | - E R Cobo
- Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
| | - P M Corva
- College of Agricultural Sciences, National University of Mar Del Plata, Balcarce, 7620 Argentina
| | - E L Morrell
- National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina
| | - G J Cantón
- National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina
| | - D P Moore
- Institute of Innovation for Agricultural Production and Sustainable Development (IPADS), Argentina; College of Agricultural Sciences, National University of Mar Del Plata, Balcarce, 7620 Argentina.
| |
Collapse
|
17
|
Maldonado Rivera JE, Vallecillo AJ, Pérez CL, Cirone KM, Dorsch MA, Morrell EL, Scioli V, Hecker YP, Fiorani F, Cantón GJ, Moore DP. Bovine neosporosis in dairy cattle from the southern highlands of Ecuador. Vet Parasitol Reg Stud Reports 2020; 20:100377. [PMID: 32448544 DOI: 10.1016/j.vprsr.2020.100377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 01/02/2020] [Accepted: 01/25/2020] [Indexed: 10/25/2022]
Abstract
The aim of this study was to describe bovine neosporosis in dairy cattle from the Sierra region, Ecuador. A case-control study was performed on 841 dairy cattle from 5 dairy herds. The overall seroprevalence was 23.4% having significant association between abortion and seropositivity (p < .05). Additionally, 46 fetuses were recovered from a local slaughterhouse to evaluate the frequency of vertical transmission. Seventeen and 3 fetuses were positive by PCR and had compatible histopathological lesions, respectively. N. caninum infection must be considered as a relevant cause of reproductive losses in Ecuador.
Collapse
Affiliation(s)
- J E Maldonado Rivera
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620 Balcarce, Argentina; Facultad de Ciencias Agropecuarias, Universidad de Cuenca, Avenida 12 de Octubre y Don Bosco, Cuenca, Ecuador
| | - A J Vallecillo
- Facultad de Ciencias Agropecuarias, Universidad de Cuenca, Avenida 12 de Octubre y Don Bosco, Cuenca, Ecuador
| | - C L Pérez
- Facultad de Ciencias Químicas, Universidad de Cuenca, Avenida 12 de Abril y Avenida Loja, Cuenca, Ecuador; Biomicrovet, Laboratorio de Diagnóstico Veterinario, Avenida Cantón Paute y Américas, Cuenca, Ecuador
| | - K M Cirone
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620 Balcarce, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), 7620 Balcarce, Argentina
| | - M A Dorsch
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620 Balcarce, Argentina
| | - E L Morrell
- Instituto Nacional de Tecnología Agropecuaria (INTA), 7620 Balcarce, Argentina
| | - V Scioli
- Instituto Nacional de Tecnología Agropecuaria (INTA), 7620 Balcarce, Argentina
| | - Y P Hecker
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida Rivadavia, 1917 CABA, Argentina
| | - F Fiorani
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620 Balcarce, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida Rivadavia, 1917 CABA, Argentina
| | - G J Cantón
- Instituto Nacional de Tecnología Agropecuaria (INTA), 7620 Balcarce, Argentina
| | - D P Moore
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, 7620 Balcarce, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Avenida Rivadavia, 1917 CABA, Argentina.
| |
Collapse
|
18
|
Odriozola ER, Armién AG, Ibarra JFC, Llada IM, Erreguerena IA, Hecker YP, Odeón AC, Morrell EL, Cantón GJ. Spongy Myelinopathy in Newborn Beef Calves Associated with Consumption of Corn Infected with Stenocarpella maydis. J Comp Pathol 2019; 172:22-26. [PMID: 31690410 DOI: 10.1016/j.jcpa.2019.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 07/17/2019] [Accepted: 08/06/2019] [Indexed: 10/25/2022]
Abstract
Stillbirth and perinatal mortality with neurological signs and lesions were diagnosed in two calves following ingestion by their dams of corn infected with Stenocarpella maydis during the third trimester of gestation. Grossly, the brain and spinal cord were unremarkable. Microscopically, diffuse severe status spongiosis of the white matter was detected in the cerebral hemispheres, brainstem, spinal cord and cerebellum. To the best of our knowledge this is the first pathological description of congenital disease in calves associated with the consumption of S. maydis-infected corn; the findings resemble those reported for the naturally occurring and experimentally induced disease in lambs.
Collapse
Affiliation(s)
- E R Odriozola
- Grupo de Sanidad Animal, Instituto Nacional de Tecnología Agropecuaria, EEA Balcarce, CC 276, Argentina
| | - A G Armién
- Ultrastructural Pathology Unit, Veterinary Diagnostic Laboratory, University of Minnesota, 1333 Gortner Ave, St. Paul, Minnesota, USA
| | - J F Cora Ibarra
- Grupo de Sanidad Animal, Instituto Nacional de Tecnología Agropecuaria, EEA Balcarce, CC 276, Argentina
| | - I M Llada
- Grupo de Sanidad Animal, Instituto Nacional de Tecnología Agropecuaria, EEA Balcarce, CC 276, Argentina
| | - I A Erreguerena
- Grupo de Sanidad Animal, Instituto Nacional de Tecnología Agropecuaria, EEA Balcarce, CC 276, Argentina
| | - Y P Hecker
- Consejo Nacional de Investigaciones Científicas y Técnicas, CC 276, Argentina
| | - A C Odeón
- Grupo de Sanidad Animal, Instituto Nacional de Tecnología Agropecuaria, EEA Balcarce, CC 276, Argentina
| | - E L Morrell
- Grupo de Sanidad Animal, Instituto Nacional de Tecnología Agropecuaria, EEA Balcarce, CC 276, Argentina
| | - G J Cantón
- Grupo de Sanidad Animal, Instituto Nacional de Tecnología Agropecuaria, EEA Balcarce, CC 276, Argentina.
| |
Collapse
|
19
|
Cantón GJ, Schock A, Melo de Sousa N, Beckers JF, Chianini F. Characterization of CD79 αcy+ cells in placentas from ruminants. Vet Immunol Immunopathol 2019; 217:109942. [PMID: 31569033 DOI: 10.1016/j.vetimm.2019.109942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/05/2019] [Accepted: 09/12/2019] [Indexed: 11/15/2022]
Abstract
Previous work carried out to characterise different immune cells in ruminant placentas found strong CD79αcy nuclear labelling in cells histologically resembling trophoblast cells. In the attempt to characterize this cell population, placentomes collected from cattle, sheep and water buffaloes were examined by immunohistochemistry with single and double labelling using monoclonal antibodies (mAb) against B lymphocytes and trophoblast cells. Most CD79αcy + cells co-expressed placental lactogen or cytokeratin and were CD21 and MHC class II negative strongly suggesting they do not have a B cell origin. However, a potential immunological role of these cells cannot be ruled out and it is currently unknown if the findings described may have an impact on physiological knowledge, health, and or diseases pathogenesis in ruminants.
Collapse
Affiliation(s)
- Germán J Cantón
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, UK; Instituto Nacional de Tecnología Agropecuaria (INTA), EEA Balcarce, B7620EMA, Argentina
| | - Alex Schock
- Animal and Plant Health Agency (APHA) Lasswade, Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, UK
| | - Noelita Melo de Sousa
- Physiology of Reproduction, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - Jean-François Beckers
- Physiology of Reproduction, Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - Francesca Chianini
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, UK.
| |
Collapse
|
20
|
Hecker YP, Regidor-Cerrillo J, Fiorani F, Horcajo P, Soria I, Gual I, Torioni S, Campero LM, Echaide IE, Álvarez-García G, Ortega-Mora LM, Zamorano PI, Venturini MC, Odeón AC, Cantón GJ, Moore DP. Immune response to Neospora caninum live tachyzoites in prepubertal female calves. Parasitol Res 2019; 118:2945-2955. [PMID: 31485864 DOI: 10.1007/s00436-019-06447-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 08/27/2019] [Indexed: 12/11/2022]
Abstract
The aim of the present study was to characterize the specific immune response in prepubertal female calves inoculated with Neospora caninum. Forty-eight N. caninum-seronegative 6-month-old Angus female calves were randomly allocated into two groups: group A calves were inoculated subcutaneously (sc) with 1 × 106 tachyzoites of the low virulence NC-Argentina LP1 isolate in sterile phosphate-buffered saline (PBS); group B calves were mock inoculated sc with sterile PBS. Calves from group A developed a specific immune response characterized by the production of IgG antibodies and the expression of IFN-γ and TNF-α cytokines. Animals did not present any febrile reaction or reactions at the site of inoculation. Although chronic N. caninum infection was developed in 50% of calves of group A after inoculation, according to the presence of antibodies against rNc-SAG4, antigen characteristic of bradyzoites, N. caninum antibodies dropped below the cut-off of ELISA from day 210 post-inoculation onwards. Future trials using the same group of inoculated animals will allow the characterization of the evolution of the immune response during pregnancy and to determine whether the immunization with the local isolate is able to prevent congenital transmission and to protect against heterologous challenges.
Collapse
Affiliation(s)
- Yanina P Hecker
- National Research Council (CONICET), Buenos Aires, Argentina. .,National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina.
| | - Javier Regidor-Cerrillo
- SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Franco Fiorani
- National Research Council (CONICET), Buenos Aires, Argentina.,National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina.,Faculty of Agrarian Sciences, National University of Mar del Plata, Mar del Plata, Argentina
| | - Pilar Horcajo
- SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Ivana Soria
- National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina
| | - Ignacio Gual
- National Research Council (CONICET), Buenos Aires, Argentina.,Faculty of Agrarian Sciences, National University of Mar del Plata, Mar del Plata, Argentina
| | - Susana Torioni
- National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina
| | - Lucía M Campero
- National Research Council (CONICET), Buenos Aires, Argentina.,Immunoparasitology Laboratory, Faculty of Veterinary Medicine, National University of La Plata, La Plata, Argentina
| | - Ignacio E Echaide
- National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina
| | - Gema Álvarez-García
- SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Luis M Ortega-Mora
- SALUVET, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Patricia I Zamorano
- National Research Council (CONICET), Buenos Aires, Argentina.,National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina
| | - María C Venturini
- Immunoparasitology Laboratory, Faculty of Veterinary Medicine, National University of La Plata, La Plata, Argentina
| | - Anselmo C Odeón
- National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina
| | - Germán J Cantón
- National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina
| | - Dadín P Moore
- National Research Council (CONICET), Buenos Aires, Argentina.,National Institute of Agrarian Technology (INTA), Buenos Aires, Argentina.,Faculty of Agrarian Sciences, National University of Mar del Plata, Mar del Plata, Argentina
| |
Collapse
|
21
|
Morrell EL, Campero CM, Cantón GJ, Odeón AC, Moore DP, Odriozola E, Paolicchi F, Fiorentino MA. Current trends in bovine abortion in Argentina. Pesq Vet Bras 2019. [DOI: 10.1590/1678-5150-pvb-5668] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT: Bovine abortion is an important cause of significant economic losses in beef and dairy herds. This syndrome is usually difficult to diagnose. The aim of this study was to characterize bovine abortion causes in Argentina by standard diagnosis procedures (histology, bacterial and viral isolation) and other diagnostic tests like direct fluorescent antibody test (DFAT), fetal serology, immunohistochemistry (IHC), and PCR, showing their specific advantages and limitations. Necropsies were performed in 150 aborted bovine fetuses submitted to the diagnostic laboratories of Instituto Nacional de Tecnología Agropecuaria (INTA) Balcarce, Argentina. Etiological diagnosis was confirmed in 78 fetuses (52% of the cases). Most causes of abortion were of infectious origin, being Neospora caninum (14.67%), Campylobacter fetus sp. (9.33%), Leptospira spp. (7.33%) and Brucella abortus (6.65%) the main microorganisms identified. Bovine viral diarrhea virus (BVDV) and bovine herpes virus (BHV) were diagnosed in 2 (1.33%) and 3 (2%) cases, respectively. This study showed a better characterization of bovine abortion compared with previous researches done on this topic.
Collapse
Affiliation(s)
| | | | | | | | - Dadín P. Moore
- Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
| | | | | | | |
Collapse
|
22
|
Fiorani F, Armendano JI, Hecker YP, Araoz V, Cantón GJ, Leunda MR, Pereyra SB, Corva PM, Odeón AC, Moore DP. Delayed type hypersensitivity induced by intradermal inoculation of a Neospora caninum tachyzoite antigen in previously exposed cattle. Vet Immunol Immunopathol 2019; 207:31-35. [DOI: 10.1016/j.vetimm.2018.11.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 10/18/2018] [Accepted: 11/18/2018] [Indexed: 11/16/2022]
|
23
|
MICHELOUD JF, SPATH EM, García JA, Cantón GJ, Moreira AR, Odriozola ER. Estudio Retrospectivo de casos de Hemoglobinuria Bacilar Diagnosticados en bovinos de la provincia de Buenos Aires (Argentina). FAVE Cs Vet 2018. [DOI: 10.14409/favecv.v17i1.7553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
La hemoglobinuria bacilar (HB) es una enfermedad infectocontagiosa, aguda, producida Clostridium haemolyticum, que afecta principalmente a bovinos y es predispuesta por diferentes factores. En este artículo se realiza un estudio retrospectivo de los casos de HB diagnosticados en bovinos de la provincia de Buenos Aires, por el Servicio de Diagnóstico Veterinario Especializado de INTA Balcarce durante el período 1969-2015 y los casos reportados por veterinarios privados en el Programa de Interacción Profesional en el área de influencia del Centro Regional Buenos Aires Sur del INTA durante el periodo 2001-2007. Se observó marcada estacionalidad de la enfermedad durante los meses de invierno y una asociación con un avanzado estado de preñez de los animales (88% de los casos). Solo en un 15,9 % de los casos se pudo confirmar una infestación simultánea con Fasciola hepatica en los rodeos donde se diagnosticó la enfermedad. En un 47,9 % de estos episodios los animales habían recibido previamente dos dosis de vacuna contra HB. HB es endémica e insidiosa en ciertas regiones de nuestro país. La información sobre algunos aspectos de su etiopatogenia y el control es escasa, dificultando su prevención. Estas áreas deberían ser exploradas en el futuro para tratar de mejorarlas.
Collapse
|
24
|
Hecker YP, Masson FM, Armendano JI, Cora J, Olivares CF, Gual I, Pardini L, Moore DP, Moré G, Cantón GJ. Evaluation of frequency of antibodies against Toxoplasma gondii,Neospora caninum and Sarcocystis spp. and transmission routes in sheep from Humid Pampa, Argentina. Acta Parasitol 2018; 63:416-421. [PMID: 29654669 DOI: 10.1515/ap-2018-0048] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 02/12/2018] [Indexed: 11/15/2022]
Abstract
The aim of this study was to describe the frequency of ovine specific antibodies to Toxoplasma gondii, Neospora caninum and Sarcocystis spp. and to estimate different transmission routes of these infections. One hundred and thirty Texel sheep and their 117 Texel lambs were included in the study. Serum samples were tested for antibodies to T. gondii, N. caninum and Sarcocystis spp. using IFAT. Toxoplasma gondii seroprevalence was 10.00% in sheep (IC95%: 4.80-15.20%), being higher in adult sheep (≥12 year) than in younger sheep (OR 1.30; 95% CI, 1.10-1.50). N. caninum and Sarcocystis spp. seroprevalences were 1.54% (IC95%: 0.00-5.70) and 72.09% (IC95%: 67.70-82.70), respectively, with no association between age and seropositivity in sheep (P>0.05). T. gondii seroprevalence in lambs was 4.27% (IC95%: 0.61-7.94). No association between T. gondii serological status in sheep and their lambs was detected (P = 0.07). Two T. gondii and Sarcocystis spp. seropositive lambs were euthanized and T. gondii and Sarcocystis spp. DNA was detected by PCR in their tissues. In conclusion, the increase of T. gondii seropositivity in relationship with sheep age and the lack of association between sheep-lamb serological status, suggest that horizontal infection is the main transmission route in this flock as reported before. Due to the low number of N. caninum-seropositive ewes no assumptions can be done about the impact of this parasite in this flock. According with previous reports, the main transmission route for Sarcocystis spp. in this species in the present study was horizontal.
Collapse
Affiliation(s)
- Yanina P Hecker
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Rosario, Argentina
- Instituto Nacional de Tecnología Agropecuaria (INTA), Buenos Aires, Argentina
| | | | - Joaquín I Armendano
- Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata, Balcarce, Argentina
| | - Juan Cora
- Instituto Nacional de Tecnología Agropecuaria (INTA), Buenos Aires, Argentina
| | | | - Ignacio Gual
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Rosario, Argentina
- Instituto Nacional de Tecnología Agropecuaria (INTA), Buenos Aires, Argentina
| | - Lais Pardini
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Rosario, Argentina
- Laboratorio de Inmunoparasitología, Facultad de Ciencias Veterinarias, UNLP, La Plata, Argentina
| | - Dadín P Moore
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Rosario, Argentina
- Instituto Nacional de Tecnología Agropecuaria (INTA), Buenos Aires, Argentina
| | - Gastón Moré
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Rosario, Argentina
- Laboratorio de Inmunoparasitología, Facultad de Ciencias Veterinarias, UNLP, La Plata, Argentina
| | - Germán J Cantón
- Instituto Nacional de Tecnología Agropecuaria (INTA), Buenos Aires, Argentina
| |
Collapse
|
25
|
Gual I, Giannitti F, Hecker YP, Shivers J, Entrocassi AC, Morrell EL, Pardini L, Fiorentino MA, Rodríguez Fermepin M, Unzaga JM, Cantón GJ, Venturini MC, Moore DP. First case report of Toxoplasma gondii-induced abortions and stillbirths in sheep in Argentina. Vet Parasitol Reg Stud Reports 2018; 12:39-42. [PMID: 31014806 DOI: 10.1016/j.vprsr.2018.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 01/08/2018] [Accepted: 01/09/2018] [Indexed: 11/19/2022]
Abstract
The aim of this study is to report an episode of reproductive losses due to toxoplasmosis in a sheep flock in Argentina. A total of 15 abortions and 9 stillbirths were recorded in a flock of 190 Texel ewes. The affected ewes were more likely to be seropositive for Toxoplasma gondii (15/24) than ewes that delivered normal lambs (5/34, OR=9.6, 95%CI=2.7-34.0, p=0.0004). A pair of aborted twins was recovered for diagnostic investigation. One of these fetuses and its dam were seropositive for T. gondii. Histological examination of the two fetuses revealed non-suppurative myocarditis and epicarditis, portal hepatitis and multifocal necrotizing encephalitis with protozoal cysts in the brain. T. gondii was detected intralesionally by immunohistochemistry in one fetus and by PCR in both. Further investigations are necessary to evaluate the economic losses due to T. gondii in the Argentinean ovine industry.
Collapse
Affiliation(s)
- I Gual
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Av. Rivadavia 1917, CABA, Argentina
| | - F Giannitti
- Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota. 1333 Gortner Avenue, Saint Paul, MN, USA; Instituto Nacional de Investigación Agropecuaria (INIA), La Estanzuela. Ruta 50 Km. 11, Colonia, Uruguay
| | - Y P Hecker
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Av. Rivadavia 1917, CABA, Argentina
| | - J Shivers
- Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota. 1333 Gortner Avenue, Saint Paul, MN, USA
| | - A C Entrocassi
- Departamento de Bioquímica Clínica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires. Junín 956, CABA, Argentina
| | - E L Morrell
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce. Ruta 226 Km. 73.5, Buenos Aires, Argentina
| | - L Pardini
- Laboratorio de Inmunoparasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, PC1900, La Plata, Argentina
| | - M A Fiorentino
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce. Ruta 226 Km. 73.5, Buenos Aires, Argentina
| | - M Rodríguez Fermepin
- Departamento de Bioquímica Clínica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires. Junín 956, CABA, Argentina
| | - J M Unzaga
- Laboratorio de Inmunoparasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, PC1900, La Plata, Argentina
| | - G J Cantón
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce. Ruta 226 Km. 73.5, Buenos Aires, Argentina
| | - M C Venturini
- Laboratorio de Inmunoparasitología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, PC1900, La Plata, Argentina
| | - D P Moore
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Av. Rivadavia 1917, CABA, Argentina.
| |
Collapse
|
26
|
Odriozola ER, Rodríguez AM, Micheloud JF, Cantón GJ, Caffarena RD, Gimeno EJ, Bodega JJ, Gardey P, Iseas FB, Giannitti F. Enzootic calcinosis in horses grazing Solanum glaucophyllum in Argentina. J Vet Diagn Invest 2017; 30:286-289. [PMID: 29202673 DOI: 10.1177/1040638717746447] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Solanum glaucophyllum, a toxic plant known for its calcinogenic effects, causes enzootic calcinosis in ruminant and monogastric animals. We describe an outbreak of enzootic calcinosis that occurred in a herd of 110 horses grazing pastureland heavily contaminated with S. glaucophyllum in Buenos Aires province, Argentina. Ten horses developed clinical signs, and 6 horses died. Clinical signs included abnormal gait (stiff-legged action, short strides), stiffness, thoracolumbar kyphosis, reluctance to move, wide stance, chronic weight loss, weakness, recumbency, and difficulty standing. Autopsy of 2 horses revealed severe mineralization of the aorta, pulmonary arteries, heart, and lungs, consistent with enzootic calcinosis. Although horses usually have very selective grazing behavior, under food restriction conditions, they can ingest the toxic plants and can develop the disease. Enzootic calcinosis should be considered as a differential diagnosis in horses grazing S. glaucophyllum-invaded pasturelands with compatible clinical signs and lesions.
Collapse
Affiliation(s)
- Ernesto R Odriozola
- Instituto Nacional de Tecnología Agropecuaria, Balcarce (Odriozola, Cantón), Argentina.,Rauch (Rodríguez), Argentina.,Salta (Micheloud), Argentina.,Instituto Nacional de Investigación Agropecuaria, La Estanzuela, Colonia, Uruguay (Caffarena, Giannitti).,Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, La Plata, Buenos Aires, Argentina (Gimeno).,Veterinarian, Private Practice, Buenos Aires, Argentina (Bodega, Gardey, Iseas).,Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN (Giannitti)
| | - Alejandro M Rodríguez
- Instituto Nacional de Tecnología Agropecuaria, Balcarce (Odriozola, Cantón), Argentina.,Rauch (Rodríguez), Argentina.,Salta (Micheloud), Argentina.,Instituto Nacional de Investigación Agropecuaria, La Estanzuela, Colonia, Uruguay (Caffarena, Giannitti).,Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, La Plata, Buenos Aires, Argentina (Gimeno).,Veterinarian, Private Practice, Buenos Aires, Argentina (Bodega, Gardey, Iseas).,Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN (Giannitti)
| | - Juan F Micheloud
- Instituto Nacional de Tecnología Agropecuaria, Balcarce (Odriozola, Cantón), Argentina.,Rauch (Rodríguez), Argentina.,Salta (Micheloud), Argentina.,Instituto Nacional de Investigación Agropecuaria, La Estanzuela, Colonia, Uruguay (Caffarena, Giannitti).,Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, La Plata, Buenos Aires, Argentina (Gimeno).,Veterinarian, Private Practice, Buenos Aires, Argentina (Bodega, Gardey, Iseas).,Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN (Giannitti)
| | - Germán J Cantón
- Instituto Nacional de Tecnología Agropecuaria, Balcarce (Odriozola, Cantón), Argentina.,Rauch (Rodríguez), Argentina.,Salta (Micheloud), Argentina.,Instituto Nacional de Investigación Agropecuaria, La Estanzuela, Colonia, Uruguay (Caffarena, Giannitti).,Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, La Plata, Buenos Aires, Argentina (Gimeno).,Veterinarian, Private Practice, Buenos Aires, Argentina (Bodega, Gardey, Iseas).,Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN (Giannitti)
| | - Rubén D Caffarena
- Instituto Nacional de Tecnología Agropecuaria, Balcarce (Odriozola, Cantón), Argentina.,Rauch (Rodríguez), Argentina.,Salta (Micheloud), Argentina.,Instituto Nacional de Investigación Agropecuaria, La Estanzuela, Colonia, Uruguay (Caffarena, Giannitti).,Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, La Plata, Buenos Aires, Argentina (Gimeno).,Veterinarian, Private Practice, Buenos Aires, Argentina (Bodega, Gardey, Iseas).,Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN (Giannitti)
| | - Eduardo J Gimeno
- Instituto Nacional de Tecnología Agropecuaria, Balcarce (Odriozola, Cantón), Argentina.,Rauch (Rodríguez), Argentina.,Salta (Micheloud), Argentina.,Instituto Nacional de Investigación Agropecuaria, La Estanzuela, Colonia, Uruguay (Caffarena, Giannitti).,Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, La Plata, Buenos Aires, Argentina (Gimeno).,Veterinarian, Private Practice, Buenos Aires, Argentina (Bodega, Gardey, Iseas).,Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN (Giannitti)
| | - José J Bodega
- Instituto Nacional de Tecnología Agropecuaria, Balcarce (Odriozola, Cantón), Argentina.,Rauch (Rodríguez), Argentina.,Salta (Micheloud), Argentina.,Instituto Nacional de Investigación Agropecuaria, La Estanzuela, Colonia, Uruguay (Caffarena, Giannitti).,Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, La Plata, Buenos Aires, Argentina (Gimeno).,Veterinarian, Private Practice, Buenos Aires, Argentina (Bodega, Gardey, Iseas).,Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN (Giannitti)
| | - Pedro Gardey
- Instituto Nacional de Tecnología Agropecuaria, Balcarce (Odriozola, Cantón), Argentina.,Rauch (Rodríguez), Argentina.,Salta (Micheloud), Argentina.,Instituto Nacional de Investigación Agropecuaria, La Estanzuela, Colonia, Uruguay (Caffarena, Giannitti).,Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, La Plata, Buenos Aires, Argentina (Gimeno).,Veterinarian, Private Practice, Buenos Aires, Argentina (Bodega, Gardey, Iseas).,Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN (Giannitti)
| | - Fortunato B Iseas
- Instituto Nacional de Tecnología Agropecuaria, Balcarce (Odriozola, Cantón), Argentina.,Rauch (Rodríguez), Argentina.,Salta (Micheloud), Argentina.,Instituto Nacional de Investigación Agropecuaria, La Estanzuela, Colonia, Uruguay (Caffarena, Giannitti).,Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, La Plata, Buenos Aires, Argentina (Gimeno).,Veterinarian, Private Practice, Buenos Aires, Argentina (Bodega, Gardey, Iseas).,Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN (Giannitti)
| | - Federico Giannitti
- Instituto Nacional de Tecnología Agropecuaria, Balcarce (Odriozola, Cantón), Argentina.,Rauch (Rodríguez), Argentina.,Salta (Micheloud), Argentina.,Instituto Nacional de Investigación Agropecuaria, La Estanzuela, Colonia, Uruguay (Caffarena, Giannitti).,Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, La Plata, Buenos Aires, Argentina (Gimeno).,Veterinarian, Private Practice, Buenos Aires, Argentina (Bodega, Gardey, Iseas).,Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN (Giannitti)
| |
Collapse
|
27
|
Gual I, Bartley PM, Katzer F, Innes EA, Cantón GJ, Moore DP. Molecular confirmation of Sarcocystis gigantea in a naturally infected sheep in Argentina: A case report. Vet Parasitol 2017; 248:25-27. [DOI: 10.1016/j.vetpar.2017.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/24/2017] [Accepted: 10/25/2017] [Indexed: 11/28/2022]
|
28
|
Marin MS, Hecker YP, Quintana S, Pérez SE, Leunda MR, Cantón GJ, Cobo ER, Moore DP, Odeón AC. Immunization with inactivated antigens of Neospora caninum induces toll-like receptors 3, 7, 8 and 9 in maternal-fetal interface of infected pregnant heifers. Vet Parasitol 2017; 243:12-17. [PMID: 28807280 DOI: 10.1016/j.vetpar.2017.06.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/30/2017] [Accepted: 06/03/2017] [Indexed: 02/09/2023]
Abstract
Neospora caninum is an obligate parasite and a major cause of abortion in cattle. Pregnancy failures appear to be associated with weak innate defences on the maternal-fetal interface during infection with N. caninum. Herein, we studied the gene expression of Toll-like receptors (TLRs) in pregnant heifers immunized with different vaccine formulations against N. caninum before mating and then challenged the heifers with live N. caninum on day 70 of gestation. TLR7 and TLR8 expression was upregulated in the placental caruncle of infected-pregnant heifers previously exposed to live N. caninum as immunogen. However, TLR7 and 8 expression in both placenta and caruncle as well as, TLR3 and 9 expression in caruncle were upregulated when heifers were previously immunized with inactivated soluble whole antigens and recombinant NcSAG1, NcHSP20 and NcGRA7 proteins. All dams were carrying viable fetuses when they were culled at day 104 of gestation. Upregulation of TLR7 and IFNγ expression was detected in fetal spleen when their mothers where previously vaccinated with soluble antigens and recombinant NcSAG1, NcHSP20 and NcGRA7 proteins. These studies demonstrate that soluble or recombinant NcSAG1, NcHSP20 and NcGRA7 antigens induce key TLRs expression at the maternal-fetal interface, probably triggering damaging inflammatory cellular immune responses associated with abortion. Previous infection with N. caninum seems to attenuate the innate immune response at the maternal-fetal interface, which could favour pregnancy maintenance and perpetuation of the disease. This finding represents novel information on how N. caninum vaccination and infection modulate TLRs expression at the placenta and fetal spleen, the possible role in the pregnancy outcomes and transplacental transmission of the protozoa.
Collapse
Affiliation(s)
- M S Marin
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Rivadavia 1917, C1033AAJ Buenos Aires, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce, Ruta 226 Km 73.5, 7620 Balcarce, Buenos Aires, Argentina.
| | - Y P Hecker
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Rivadavia 1917, C1033AAJ Buenos Aires, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce, Ruta 226 Km 73.5, 7620 Balcarce, Buenos Aires, Argentina
| | - S Quintana
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Rivadavia 1917, C1033AAJ Buenos Aires, Argentina; Centro de Investigación en Abejas Sociales, Departamento de Biología, Facultad de Ciencias Exactas y Naturales, UNMDP, Funes 3350, 7600 Mar del Plata, Buenos Aires, Argentina
| | - S E Pérez
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Rivadavia 1917, C1033AAJ Buenos Aires, Argentina; Centro de Investigación Veterinaria de Tandil (CIVETAN, CONICET-CICPBA), Facultad de Ciencias Veterinarias, UNCPBA, Paraje Arroyo Seco s/n, 7000 Tandil, Buenos Aires, Argentina
| | - M R Leunda
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce, Ruta 226 Km 73.5, 7620 Balcarce, Buenos Aires, Argentina
| | - G J Cantón
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce, Ruta 226 Km 73.5, 7620 Balcarce, Buenos Aires, Argentina
| | - E R Cobo
- Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Canada
| | - D P Moore
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Rivadavia 1917, C1033AAJ Buenos Aires, Argentina; Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce, Ruta 226 Km 73.5, 7620 Balcarce, Buenos Aires, Argentina
| | - A C Odeón
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce, Ruta 226 Km 73.5, 7620 Balcarce, Buenos Aires, Argentina
| |
Collapse
|
29
|
García JA, Cantón GJ, García BL, Micheloud JF, Campero CM, Späth EJ, Odriozola ER. Retrospective analysis of cattle poisoning in Argentina (2000-2013). Pesq Vet Bras 2017. [DOI: 10.1590/s0100-736x2017000300002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Juan A. García
- Instituto Nacional de Tecnología Agropecuaria, Argentina
| | | | | | | | | | | | | |
Collapse
|
30
|
Cantón GJ, Katzer F, Maley SW, Bartley PM, Benavides-Silván J, Palarea-Albaladejo J, Pang Y, Smith SH, Rocchi M, Buxton D, Innes EA, Chianini F. Cytokine expression in the placenta of pregnant cattle after inoculation with Neospora caninum. Vet Immunol Immunopathol 2014; 161:77-89. [DOI: 10.1016/j.vetimm.2014.07.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 07/08/2014] [Accepted: 07/10/2014] [Indexed: 10/25/2022]
|
31
|
Cantón GJ, Katzer F, Benavides-Silván J, Maley SW, Palarea-Albaladejo J, Pang Y, Smith S, Bartley PM, Rocchi M, Innes EA, Chianini F. Phenotypic characterisation of the cellular immune infiltrate in placentas of cattle following experimental inoculation with Neospora caninum in late gestation. Vet Res 2013; 44:60. [PMID: 23876124 PMCID: PMC3726360 DOI: 10.1186/1297-9716-44-60] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 07/08/2013] [Indexed: 11/17/2022] Open
Abstract
Despite Neospora caninum being a major cause of bovine abortion worldwide, its pathogenesis is not completely understood. Neospora infection stimulates host cell-mediated immune responses, which may be responsible for the placental damage leading to abortion. The aim of the current study was to characterize the placental immune response following an experimental inoculation of pregnant cattle with N. caninum tachyzoites at day 210 of gestation. Cows were culled at 14, 28, 42 and 56 days post inoculation (dpi). Placentomes were examined by immunohistochemistry using antibodies against macrophages, T-cell subsets (CD4, CD8 and γδ), NK cells and B cells. Macrophages were detected mainly at 14 days post inoculation. Inflammation was generally mild and mainly characterized by CD3+, CD4+ and γδ T-cells; whereas CD8+ and NK cells were less numerous. The immune cell repertoire observed in this study was similar to those seen in pregnant cattle challenged with N. caninum at early gestation. However, cellular infiltrates were less severe than those seen during first trimester Neospora infections. This may explain the milder clinical outcome observed when animals are infected late in gestation.
Collapse
|