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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
19/06/2019 |
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Actualizado : |
05/09/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
ALMEIDA, D.S.; PAZ, L.N.; DE OLIVEIRA, D.S.; RISTOW, P.; HAMOND, C.; COSTA, F.; PORTELA, R.W.; ESTRELA-LIMA, A.; PINNA, M.H. |
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Afiliación : |
Post Graduate Program in Animal Science in the Tropics-Federal University of Bahia., Salvador, Bahia, Brazil.; Post Graduate Program in Animal Science in the Tropics-Federal University of Bahia., Salvador, Bahia, Brazil.; Instituto Gonçalo Moniz, Ministério da Saúde, Fundação Oswaldo Cruz, Salvador, Bahia, Brazil Silva, D.N. // Post Graduate Program in Animal Science in the Tropics-Federal University of Bahia., Salvador, Bahia, Brazil.; Laboratory of Bacteriology and Health, Institute of Biology, Federal University of Bahia, Salvador, Bahia, Brazil.; CAMILA HAMOND, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Instituto de Saude Coletiva, Federal University of Bahia, Salvador, Brazil.; Instituto de Ciências da Saúde, Federal University of Bahia, Salvador, Brazil.; Post Graduate Program in Animal Science in the Tropics-Federal University of Bahia., Salvador, Bahia, Brazil.; Post Graduate Program in Animal Science in the Tropics-Federal University of Bahia., Salvador, Bahia, Brazil. |
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Título : |
Investigation of chronic infection by Leptospira spp. in asymptomatic sheep slaughtered in slaughterhouse. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
PloS One, 2019, Volume 14, Issue 5, Page e0217391. [OPEN ACCESS.].Doi: https://doi.org/10.1371/journal.pone.0217391 |
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DOI : |
10.1371/journal.pone.0217391 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: August 14, 2018 / Accepted: May 11, 2019 / Published: May 23, 2019. This study was funded by the Foundation
for Research Support of the State of Bahia, Brazil (http://www.fapesb.ba.gov.br/), Public Notice no.025/2010 under Term of Grant PPP 0034/2011,coordinated by Melissa Hanzen Pinna. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. |
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Contenido : |
ABSTRACT.
The study aimed to evaluate the histopathological characteristics of renal lesions in chronically infected sheep and with low titers of anti-Leptospira antibodies from a slaughterhouse. In the serological analysis, 24.74% (48/194) presented seroreactivity with a titer equal to or greater than 100. Among these seroreactive sheep, titers of 100 were predominant (58.33%, 28/48), with the highest titer being 1,600 (2.08%, 1/48). Serogroup Sejroe (sv. Hardjo) was the most frequent at 35.42% (17/48). Leptospiral DNA was verified in 4.12% (8/194) of the kidney samples tested, and no urine sample was positive. All the samples corresponded to the pathogenic species L. interrogans. The eight amplicons with 202-nucleotides were identical with two mismatches (presented 100% of identity) using the PCR targeting to secY gene. Histological sections of PCR-positive kidneys were submitted to direct detection by the anti-LipL32 immunohistochemistry (IHC) technique. The Leptospira spp. antigen was evident in 62.5% (5/8) of the kidneys. Positive staining was observed in the cytoplasm of tubular cells and in the form of brownish aggregates that adhered to tubular epithelial cells and projected into the lumen. Inflammatory lymphoplasmacytic infiltrate, ranging from mild to moderate, with multifocal distribution, was the predominant finding in seroreactive animals (33.33%, 16/48). The demonstration of the leptospiral antigen lining the renal tubules through IHC of naturally infected sheep confirmed by PCR characterizes renal colonization in a species with the presence of histological changes compatible with leptospirosis. MenosABSTRACT.
The study aimed to evaluate the histopathological characteristics of renal lesions in chronically infected sheep and with low titers of anti-Leptospira antibodies from a slaughterhouse. In the serological analysis, 24.74% (48/194) presented seroreactivity with a titer equal to or greater than 100. Among these seroreactive sheep, titers of 100 were predominant (58.33%, 28/48), with the highest titer being 1,600 (2.08%, 1/48). Serogroup Sejroe (sv. Hardjo) was the most frequent at 35.42% (17/48). Leptospiral DNA was verified in 4.12% (8/194) of the kidney samples tested, and no urine sample was positive. All the samples corresponded to the pathogenic species L. interrogans. The eight amplicons with 202-nucleotides were identical with two mismatches (presented 100% of identity) using the PCR targeting to secY gene. Histological sections of PCR-positive kidneys were submitted to direct detection by the anti-LipL32 immunohistochemistry (IHC) technique. The Leptospira spp. antigen was evident in 62.5% (5/8) of the kidneys. Positive staining was observed in the cytoplasm of tubular cells and in the form of brownish aggregates that adhered to tubular epithelial cells and projected into the lumen. Inflammatory lymphoplasmacytic infiltrate, ranging from mild to moderate, with multifocal distribution, was the predominant finding in seroreactive animals (33.33%, 16/48). The demonstration of the leptospiral antigen lining the renal tubules through IHC of naturally infected shee... Presentar Todo |
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Palabras claves : |
DISEASES OF SHEEP; LEPTOSPIRES; PLATAFORMA EN SALUD ANIMAL. |
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Thesagro : |
ENFERMEDADES DE LOS ANIMALES; LEPTOSPIROSIS. |
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Asunto categoría : |
E16 Enfermedades de los animales |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16705/1/pone.0217391.pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6532964/pdf/pone.0217391.pdf
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Marc : |
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100 1 $aALMEIDA, D.S.
245 $aInvestigation of chronic infection by Leptospira spp. in asymptomatic sheep slaughtered in slaughterhouse.$h[electronic resource]
260 $c2019
500 $aArticle history: Received: August 14, 2018 / Accepted: May 11, 2019 / Published: May 23, 2019. This study was funded by the Foundation for Research Support of the State of Bahia, Brazil (http://www.fapesb.ba.gov.br/), Public Notice no.025/2010 under Term of Grant PPP 0034/2011,coordinated by Melissa Hanzen Pinna. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
520 $aABSTRACT. The study aimed to evaluate the histopathological characteristics of renal lesions in chronically infected sheep and with low titers of anti-Leptospira antibodies from a slaughterhouse. In the serological analysis, 24.74% (48/194) presented seroreactivity with a titer equal to or greater than 100. Among these seroreactive sheep, titers of 100 were predominant (58.33%, 28/48), with the highest titer being 1,600 (2.08%, 1/48). Serogroup Sejroe (sv. Hardjo) was the most frequent at 35.42% (17/48). Leptospiral DNA was verified in 4.12% (8/194) of the kidney samples tested, and no urine sample was positive. All the samples corresponded to the pathogenic species L. interrogans. The eight amplicons with 202-nucleotides were identical with two mismatches (presented 100% of identity) using the PCR targeting to secY gene. Histological sections of PCR-positive kidneys were submitted to direct detection by the anti-LipL32 immunohistochemistry (IHC) technique. The Leptospira spp. antigen was evident in 62.5% (5/8) of the kidneys. Positive staining was observed in the cytoplasm of tubular cells and in the form of brownish aggregates that adhered to tubular epithelial cells and projected into the lumen. Inflammatory lymphoplasmacytic infiltrate, ranging from mild to moderate, with multifocal distribution, was the predominant finding in seroreactive animals (33.33%, 16/48). The demonstration of the leptospiral antigen lining the renal tubules through IHC of naturally infected sheep confirmed by PCR characterizes renal colonization in a species with the presence of histological changes compatible with leptospirosis.
650 $aENFERMEDADES DE LOS ANIMALES
650 $aLEPTOSPIROSIS
653 $aDISEASES OF SHEEP
653 $aLEPTOSPIRES
653 $aPLATAFORMA EN SALUD ANIMAL
700 1 $aPAZ, L.N.
700 1 $aDE OLIVEIRA, D.S.
700 1 $aRISTOW, P.
700 1 $aHAMOND, C.
700 1 $aCOSTA, F.
700 1 $aPORTELA, R.W.
700 1 $aESTRELA-LIMA, A.
700 1 $aPINNA, M.H.
773 $tPloS One, 2019, Volume 14, Issue 5, Page e0217391. [OPEN ACCESS.].Doi: https://doi.org/10.1371/journal.pone.0217391
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INIA La Estanzuela (LE) |
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| Registros recuperados : 2 | |
| 1. |  | ALMEIDA, D.S; PAZ, L.N; HAMOND, C.; PORTELA, R.W.; PINNA, P.H Infecção por Leptospira Spp. em ovinos assintomáticos abatidos em matadouro-frigorífico no nordeste do Brasil. In: Jornadas Uruguayas de Buiatría, 46., 2018, Paysandú, Uy., Matto, C.; Delpiazzo, R.(Ed.). Trabajos presentados. Paysandú: Centro Médico Veterinario de Paysandú/Sociedad Uruguaya de Buiatría, 2018. p. 224-227.| Tipo: Trabajos en Congresos/Conferencias |
| Biblioteca(s): INIA La Estanzuela. |
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| 2. | | ALMEIDA, D.S.; PAZ, L.N.; DE OLIVEIRA, D.S.; RISTOW, P.; HAMOND, C.; COSTA, F.; PORTELA, R.W.; ESTRELA-LIMA, A.; PINNA, M.H. Investigation of chronic infection by Leptospira spp. in asymptomatic sheep slaughtered in slaughterhouse. PloS One, 2019, Volume 14, Issue 5, Page e0217391. [OPEN ACCESS.].Doi: https://doi.org/10.1371/journal.pone.0217391 Article history: Received: August 14, 2018 / Accepted: May 11, 2019 / Published: May 23, 2019. This study was funded by the Foundation
for Research Support of the State of Bahia, Brazil (http://www.fapesb.ba.gov.br/), Public Notice...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA La Estanzuela. |
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| Registros recuperados : 2 | |
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