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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
25/10/2019 |
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Actualizado : |
25/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
SIMÕES, J.G.; MEDEIROS, R.M.T.; MEDEIROS, M.A.; OLINDA, R.G.; DANTAS, A.F.M.; RIET-CORREA, F. |
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Afiliación : |
Unidade Acadêmica de Medicina Veterinária (UAMV), Centro de Saúde e Tecnologia Rural (CSTR), Universidade Federal de Campina Grande (UFCG), Av. Universitária s/n, Bairro Santa Cecília, Patos, PB 58700-970, Brazil.; ROSANE MARIA T. MEDEIROS, Unidade Acadêmica de Medicina Veterinária (UAMV), Centro de Saúde e Tecnologia Rural (CSTR), Universidade Federal de Campina Grande (UFCG), Av. Universitária s/n, Bairro Santa Cecília, Patos, PB 58700-970, Brazil.; MÁRCIA A. MEDEIROS, Unidade Acadêmica de Medicina Veterinária (UAMV), Centro de Saúde e Tecnologia Rural (CSTR), Universidade Federal de Campina Grande (UFCG), Av. Universitária s/n, Bairro Santa Cecília, Patos, PB 58700-970, Brazil.; ROBÉRIO G. OLINDA, Unidade Acadêmica de Medicina Veterinária (UAMV), Centro de Saúde e Tecnologia Rural (CSTR), Universidade Federal de Campina Grande (UFCG), Av. Universitária s/n, Bairro Santa Cecília, Patos, PB 58700-970, Brazil.; ANTÔNIO FLÁVIO M. DANTAS, Unidade Acadêmica de Medicina Veterinária (UAMV), Centro de Saúde e Tecnologia Rural (CSTR), Universidade Federal de Campina Grande (UFCG), Av. Universitária s/n, Bairro Santa Cecília, Patos, PB 58700-970, Brazil.; FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Nitrate and nitrite poisoning in sheep and goats caused by ingestion of Portulaca oleracea. [Intoxicação por nitratos e nitritos em ovinos e caprinos causada pela ingestão de Portulaca oleracea]. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Pesquisa Veterinaria Brasileira, 1 August 2018, Volume 38, Issue 8, Pages 1549-1553. OPEN ACCESS |
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DOI : |
10.1590/1678-5150-pvb-5550 |
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Idioma : |
Inglés |
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Notas : |
Article history: 1 Received on July 27, 2017./Accepted for publication on August 13, 2017. |
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Contenido : |
ABSTRACT. Three outbreaks of poisoning by Portulaca oleracea were reported in sheep and goats in Northeast Brazil. In the first outbreak, 8 out of 20 sheep were affected and later died. In the second outbreak, three goats and one sheep died out of a flock of 30 animals that included both species. In the third outbreak, two out of 19 sheep were affected, and they recovered after a treatment of 2% methylene blue at a dose of 4 mg/kg body weight. In the first and
second outbreaks, the animals ingested P. oleracea after it was cut and offered in feeders. In the third outbreak, the flock was grazing in an area that had been invaded by the plant. To determine the toxicity, P. oleracea was administered experimentally at a dose of 80g/kg of body weight to seven sheep, weighing 19-30 kg. One control sheep received green grass. One to four hours after P. oleracea ingestion, the animals showed clinical signs of poisoning characterized by cyanotic mucous membranes, bloat, ruminal pH of 8-9, pollakiuria, aerophagia,involuntary movements of the upper lip, apathy, tachypnea and tachycardia. Five animals
recovered, including one that was treated with 1% methylene blue, and two animals died. During necropsy, the mucous membranes were brownish, and the blood was dark brown. Diphenylamine tests of the plant and of rumen contents were positive for nitrates. Positive results for nitrates were also found in 24 samples of P. oleracea that were collected in different places in the states of Pernambuco and Paraíba. We conclude that P. oleracea accumulates nitrates at toxic levels and may cause poisoning in sheep and goats. MenosABSTRACT. Three outbreaks of poisoning by Portulaca oleracea were reported in sheep and goats in Northeast Brazil. In the first outbreak, 8 out of 20 sheep were affected and later died. In the second outbreak, three goats and one sheep died out of a flock of 30 animals that included both species. In the third outbreak, two out of 19 sheep were affected, and they recovered after a treatment of 2% methylene blue at a dose of 4 mg/kg body weight. In the first and
second outbreaks, the animals ingested P. oleracea after it was cut and offered in feeders. In the third outbreak, the flock was grazing in an area that had been invaded by the plant. To determine the toxicity, P. oleracea was administered experimentally at a dose of 80g/kg of body weight to seven sheep, weighing 19-30 kg. One control sheep received green grass. One to four hours after P. oleracea ingestion, the animals showed clinical signs of poisoning characterized by cyanotic mucous membranes, bloat, ruminal pH of 8-9, pollakiuria, aerophagia,involuntary movements of the upper lip, apathy, tachypnea and tachycardia. Five animals
recovered, including one that was treated with 1% methylene blue, and two animals died. During necropsy, the mucous membranes were brownish, and the blood was dark brown. Diphenylamine tests of the plant and of rumen contents were positive for nitrates. Positive results for nitrates were also found in 24 samples of P. oleracea that were collected in different places in the states of Pernamb... Presentar Todo |
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Palabras claves : |
GOATS; METHEMOGLOBINEMIA; NITRITE; PLATAFORMA SALUD ANIMAL; POISONING; POISONOUS PLANTS; PORTULACA OLERACEA; SHEEP; TOXIC PLANTS. |
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Thesagro : |
CAPRINOS; OVINOS; PLANTAS TOXICAS. |
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Asunto categoría : |
L74 Trastornos misceláneos de los animales |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13650/1/Pesq.-Vet.-Bras.-3881549-1553-agosto-2018.pdf
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Marc : |
LEADER 02823naa a2200349 a 4500
001 1060351
005 2019-10-25
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1590/1678-5150-pvb-5550$2DOI
100 1 $aSIMÕES, J.G.
245 $aNitrate and nitrite poisoning in sheep and goats caused by ingestion of Portulaca oleracea. [Intoxicação por nitratos e nitritos em ovinos e caprinos causada pela ingestão de Portulaca oleracea].$h[electronic resource]
260 $c2018
500 $aArticle history: 1 Received on July 27, 2017./Accepted for publication on August 13, 2017.
520 $aABSTRACT. Three outbreaks of poisoning by Portulaca oleracea were reported in sheep and goats in Northeast Brazil. In the first outbreak, 8 out of 20 sheep were affected and later died. In the second outbreak, three goats and one sheep died out of a flock of 30 animals that included both species. In the third outbreak, two out of 19 sheep were affected, and they recovered after a treatment of 2% methylene blue at a dose of 4 mg/kg body weight. In the first and second outbreaks, the animals ingested P. oleracea after it was cut and offered in feeders. In the third outbreak, the flock was grazing in an area that had been invaded by the plant. To determine the toxicity, P. oleracea was administered experimentally at a dose of 80g/kg of body weight to seven sheep, weighing 19-30 kg. One control sheep received green grass. One to four hours after P. oleracea ingestion, the animals showed clinical signs of poisoning characterized by cyanotic mucous membranes, bloat, ruminal pH of 8-9, pollakiuria, aerophagia,involuntary movements of the upper lip, apathy, tachypnea and tachycardia. Five animals recovered, including one that was treated with 1% methylene blue, and two animals died. During necropsy, the mucous membranes were brownish, and the blood was dark brown. Diphenylamine tests of the plant and of rumen contents were positive for nitrates. Positive results for nitrates were also found in 24 samples of P. oleracea that were collected in different places in the states of Pernambuco and Paraíba. We conclude that P. oleracea accumulates nitrates at toxic levels and may cause poisoning in sheep and goats.
650 $aCAPRINOS
650 $aOVINOS
650 $aPLANTAS TOXICAS
653 $aGOATS
653 $aMETHEMOGLOBINEMIA
653 $aNITRITE
653 $aPLATAFORMA SALUD ANIMAL
653 $aPOISONING
653 $aPOISONOUS PLANTS
653 $aPORTULACA OLERACEA
653 $aSHEEP
653 $aTOXIC PLANTS
700 1 $aMEDEIROS, R.M.T.
700 1 $aMEDEIROS, M.A.
700 1 $aOLINDA, R.G.
700 1 $aDANTAS, A.F.M.
700 1 $aRIET-CORREA, F.
773 $tPesquisa Veterinaria Brasileira, 1 August 2018, Volume 38, Issue 8, Pages 1549-1553. OPEN ACCESS
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INIA La Estanzuela (LE) |
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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
30/06/2023 |
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Actualizado : |
30/06/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
GIANNITTI, F.; GARCÍA, J. P.; ADAMS, V.; ARMENDANO, J.; BEINGESSER, J.; ROOD, J.; UZAL, F. A. |
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Afiliación : |
FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE P. GARCÍA, Universidad Nacional del Centro de la Provincia de Buenos Aires, Tandil, Buenos Aires, Argentina; VICKI ADAMS, Monash University, Parkville, Victoria, Australia; JOAQUÍN I. ARMENDANO, Universidad Nacional del Centro de la Provincia de Buenos Aires, Tandil, Buenos Aires, Argentina; JULIANN BEINGESSER, California Animal Health and Food Safety Laboratoy, University of California at Davis, San Bernardino, CA; JULIAN I. ROOD, Monash University, Parkville, Victoria, Australia; FRANCISCO A. UZAL, Monash University, Parkville, Victoria, Australia. |
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Título : |
Experimental acute Clostridium perfringens type D enterotoxemia in sheep is not characterized by specific renal lesions. |
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Complemento del título : |
Infectious Disease - Original Article. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Veterinary Pathology. 2023, vol.60(4):412-419. https://doi.org/10.1177/03009858231171669 |
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ISSN : |
0300-9858 (print); 1544-2217 (online). |
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DOI : |
10.1177/03009858231171669 |
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Idioma : |
Inglés |
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Notas : |
Article history: First published online May 12, 2023. -- Corresponding Author: Francisco A. Uzal, California Animal Health and Food Safety Laboratory, School of Veterinary Medicine, University of California at Davis, 105 W CVentral Ave, San Bernardino, CA 92408, USA. Email: fauzal@ucdavis.edu -- Funding: This work was supported by grant R01 AI056177 from the National Institute of Allergy and Infectious Diseases (NIAID). Research at Monash University was also supported by funding provided by the Australian Research Council to the Australian Research Council Centre of Excellence in Structural and Functional Microbial Genomics (grant no. CE0562063). -- |
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Contenido : |
ABSTRACT.- Type D enterotoxemia, caused by Clostridium perfringens epsilon toxin (ETX), is one of the most economically important clostridial diseases of sheep. Acute type D enterotoxemia is characterized by well-documented lesions in the nervous, cardiocirculatory, and pulmonary systems. However, discrepancies and confusion exist as to whether renal lesions are part of the spectrum of lesions of this condition, which is controversial considering that for many decades it has been colloquially referred to as "pulpy kidney disease". Here, the authors assess renal changes in an experimental model of acute type D enterotoxemia in sheep and evaluate the possible role of ETX in their genesis. Four groups of 6 sheep each were intraduodenally inoculated with either a wild-type virulent C. perfringens type D strain, an etx knockout mutant unable to produce ETX, the etx mutant strain complemented with the wild-type etx gene that regains the ETX toxin production, or sterile culture medium (control group). All sheep were autopsied less than 24 hours after inoculation; none of them developed gross lesions in the kidneys. Ten predefined histologic renal changes were scored in each sheep. The proportion of sheep with microscopic changes and their severity scores did not differ significantly between groups. Mild intratubular medullary hemorrhage was observed in only 2 of the 12 sheep inoculated with the wild-type or etx-complemented bacterial strains, but not in the 12 sheep of the other 2 groups. The authors conclude that no specific gross or histologic renal lesions are observed in sheep with experimental acute type D enterotoxemia. © The Author(s) 2023 MenosABSTRACT.- Type D enterotoxemia, caused by Clostridium perfringens epsilon toxin (ETX), is one of the most economically important clostridial diseases of sheep. Acute type D enterotoxemia is characterized by well-documented lesions in the nervous, cardiocirculatory, and pulmonary systems. However, discrepancies and confusion exist as to whether renal lesions are part of the spectrum of lesions of this condition, which is controversial considering that for many decades it has been colloquially referred to as "pulpy kidney disease". Here, the authors assess renal changes in an experimental model of acute type D enterotoxemia in sheep and evaluate the possible role of ETX in their genesis. Four groups of 6 sheep each were intraduodenally inoculated with either a wild-type virulent C. perfringens type D strain, an etx knockout mutant unable to produce ETX, the etx mutant strain complemented with the wild-type etx gene that regains the ETX toxin production, or sterile culture medium (control group). All sheep were autopsied less than 24 hours after inoculation; none of them developed gross lesions in the kidneys. Ten predefined histologic renal changes were scored in each sheep. The proportion of sheep with microscopic changes and their severity scores did not differ significantly between groups. Mild intratubular medullary hemorrhage was observed in only 2 of the 12 sheep inoculated with the wild-type or etx-complemented bacterial strains, but not in the 12 sheep of the other 2 ... Presentar Todo |
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Palabras claves : |
Clostridium perfringens type D; Enterotoxemia; ETX; Experimental infection; Kidneys; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA; Renal pathology; Sheep. |
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Asunto categoría : |
L10 Genética y mejoramiento animal |
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Marc : |
LEADER 03352naa a2200325 a 4500
001 1064216
005 2023-06-30
008 2023 bl uuuu u00u1 u #d
022 $a0300-9858 (print); 1544-2217 (online).
024 7 $a10.1177/03009858231171669$2DOI
100 1 $aGIANNITTI, F.
245 $aExperimental acute Clostridium perfringens type D enterotoxemia in sheep is not characterized by specific renal lesions.$h[electronic resource]
260 $c2023
500 $aArticle history: First published online May 12, 2023. -- Corresponding Author: Francisco A. Uzal, California Animal Health and Food Safety Laboratory, School of Veterinary Medicine, University of California at Davis, 105 W CVentral Ave, San Bernardino, CA 92408, USA. Email: fauzal@ucdavis.edu -- Funding: This work was supported by grant R01 AI056177 from the National Institute of Allergy and Infectious Diseases (NIAID). Research at Monash University was also supported by funding provided by the Australian Research Council to the Australian Research Council Centre of Excellence in Structural and Functional Microbial Genomics (grant no. CE0562063). --
520 $aABSTRACT.- Type D enterotoxemia, caused by Clostridium perfringens epsilon toxin (ETX), is one of the most economically important clostridial diseases of sheep. Acute type D enterotoxemia is characterized by well-documented lesions in the nervous, cardiocirculatory, and pulmonary systems. However, discrepancies and confusion exist as to whether renal lesions are part of the spectrum of lesions of this condition, which is controversial considering that for many decades it has been colloquially referred to as "pulpy kidney disease". Here, the authors assess renal changes in an experimental model of acute type D enterotoxemia in sheep and evaluate the possible role of ETX in their genesis. Four groups of 6 sheep each were intraduodenally inoculated with either a wild-type virulent C. perfringens type D strain, an etx knockout mutant unable to produce ETX, the etx mutant strain complemented with the wild-type etx gene that regains the ETX toxin production, or sterile culture medium (control group). All sheep were autopsied less than 24 hours after inoculation; none of them developed gross lesions in the kidneys. Ten predefined histologic renal changes were scored in each sheep. The proportion of sheep with microscopic changes and their severity scores did not differ significantly between groups. Mild intratubular medullary hemorrhage was observed in only 2 of the 12 sheep inoculated with the wild-type or etx-complemented bacterial strains, but not in the 12 sheep of the other 2 groups. The authors conclude that no specific gross or histologic renal lesions are observed in sheep with experimental acute type D enterotoxemia. © The Author(s) 2023
653 $aClostridium perfringens type D
653 $aEnterotoxemia
653 $aETX
653 $aExperimental infection
653 $aKidneys
653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA
653 $aRenal pathology
653 $aSheep
700 1 $aGARCÍA, J. P.
700 1 $aADAMS, V.
700 1 $aARMENDANO, J.
700 1 $aBEINGESSER, J.
700 1 $aROOD, J.
700 1 $aUZAL, F. A.
773 $tVeterinary Pathology. 2023, vol.60(4):412-419. https://doi.org/10.1177/03009858231171669
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