Experimental intoxication by the leaves of <i>Melia azedarach</i> (Meliaceae) in cattle
- Autores
- Méndez González, María del Carmen; Aragão, Marcos; Elías, Fabiana; Riet Correa, Franklin; Gimeno, Eduardo Juan
- Año de publicación
- 2002
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Green leaves of Melia azedarach were administered at single doses ranging from 5 to 30 g/ kg bw to 11 calves. Clinical signs were depression, ruminal stasis, dry feces with blood, ataxia, muscle tremors, sternal recumbency, hypothermia and abdominal pain. Serum AST and CPK were increased. Signs appeared from 8 to 24 hours after dosing, and the clinical course lasted from 2 to 72 hours. Three calves dosed with 30g/kg bw died. The macroscopic findings included intestinal congestion, yellow discoloration of the liver, brain congestion and dry feces with blood in the rectum. The liver showed swollen and vacuolated hepatocytes. Necrotic hepatocytes were scattered throughout the parenchyma or concentrated in the periacinar zone. Degenerative and necrotic changes were observed in the epithelium of the forestomachs. There was also necrosis of the lymphoid tissue. Skeletal muscles showed hyaline degeneration and fiber necrosis. The necrotic fragments contained floccular or granular debris with infiltration by macrophages and satellite cells.
Folhas verdes de Melia azedarach foram administradas em dose única a 11 bovinos nas doses de 5 a 30g/kg de peso vivo. Os sinais clínicos caracterizaram- se por depressão, atonia ruminal, fezes duras com sangue, incoordenação, tremores musculares, decúbito esternal, hipotermia e dores abdominais. Os níveis séricos de AST e CPK estavam aumentados. O aparecimento dos sinais clínicos foi observado entre 8-24 horas após a ingestão das folhas e o curso clínico durou entre 2 e 72 horas. Três animais que receberam 30g/kg morreram. Os achados macroscópicos caracterizaram-se por congestão dos intestinos e do cérebro, fígado amarelado e presença de fezes duras com sangue no reto. Os hepatócitos estavam tumefeitos e com vacuolização citoplasmática. Observaram-se hepatócitos necróticos distribuídos no parênquima ou próximos à veia centrolobular. Lesões degenerativas e necróticas foram observadas no epitélio dos pré-estômagos. Havia também necrose do tecido linfóide. Nos músculos esqueléticos observaram- se degeneração hialina e necrose das fibras. Os fragmentos necróticos apresentavam necrose flocular ou granular com infiltração de macrófagos e células satélites.
Facultad de Ciencias Veterinarias - Materia
-
Ciencias Veterinarias
cattle
creatine kinase
hematochezia
Melia azedarach
Meliaceae
hyaline degeneration
hypothermia
plant poisoning
poisonous plants
intestine injury
intoxication
macrophage
phytotoxicity - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc/3.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/35792
Ver los metadatos del registro completo
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Experimental intoxication by the leaves of <i>Melia azedarach</i> (Meliaceae) in cattleMéndez González, María del CarmenAragão, MarcosElías, FabianaRiet Correa, FranklinGimeno, Eduardo JuanCiencias Veterinariascattlecreatine kinasehematocheziaMelia azedarachMeliaceaehyaline degenerationhypothermiaplant poisoningpoisonous plantsintestine injuryintoxicationmacrophagephytotoxicityGreen leaves of <i>Melia azedarach</i> were administered at single doses ranging from 5 to 30 g/ kg bw to 11 calves. Clinical signs were depression, ruminal stasis, dry feces with blood, ataxia, muscle tremors, sternal recumbency, hypothermia and abdominal pain. Serum AST and CPK were increased. Signs appeared from 8 to 24 hours after dosing, and the clinical course lasted from 2 to 72 hours. Three calves dosed with 30g/kg bw died. The macroscopic findings included intestinal congestion, yellow discoloration of the liver, brain congestion and dry feces with blood in the rectum. The liver showed swollen and vacuolated hepatocytes. Necrotic hepatocytes were scattered throughout the parenchyma or concentrated in the periacinar zone. Degenerative and necrotic changes were observed in the epithelium of the forestomachs. There was also necrosis of the lymphoid tissue. Skeletal muscles showed hyaline degeneration and fiber necrosis. The necrotic fragments contained floccular or granular debris with infiltration by macrophages and satellite cells.Folhas verdes de Melia azedarach foram administradas em dose única a 11 bovinos nas doses de 5 a 30g/kg de peso vivo. Os sinais clínicos caracterizaram- se por depressão, atonia ruminal, fezes duras com sangue, incoordenação, tremores musculares, decúbito esternal, hipotermia e dores abdominais. Os níveis séricos de AST e CPK estavam aumentados. O aparecimento dos sinais clínicos foi observado entre 8-24 horas após a ingestão das folhas e o curso clínico durou entre 2 e 72 horas. Três animais que receberam 30g/kg morreram. Os achados macroscópicos caracterizaram-se por congestão dos intestinos e do cérebro, fígado amarelado e presença de fezes duras com sangue no reto. Os hepatócitos estavam tumefeitos e com vacuolização citoplasmática. Observaram-se hepatócitos necróticos distribuídos no parênquima ou próximos à veia centrolobular. Lesões degenerativas e necróticas foram observadas no epitélio dos pré-estômagos. Havia também necrose do tecido linfóide. Nos músculos esqueléticos observaram- se degeneração hialina e necrose das fibras. Os fragmentos necróticos apresentavam necrose flocular ou granular com infiltração de macrófagos e células satélites.Facultad de Ciencias Veterinarias2002-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf19-24http://sedici.unlp.edu.ar/handle/10915/35792enginfo:eu-repo/semantics/altIdentifier/url/http://www.scielo.br/pdf/pvb/v22n1/8867.pdfinfo:eu-repo/semantics/altIdentifier/issn/0100-736Xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/3.0/Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T10:49:42Zoai:sedici.unlp.edu.ar:10915/35792Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 10:49:42.381SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Experimental intoxication by the leaves of <i>Melia azedarach</i> (Meliaceae) in cattle |
title |
Experimental intoxication by the leaves of <i>Melia azedarach</i> (Meliaceae) in cattle |
spellingShingle |
Experimental intoxication by the leaves of <i>Melia azedarach</i> (Meliaceae) in cattle Méndez González, María del Carmen Ciencias Veterinarias cattle creatine kinase hematochezia Melia azedarach Meliaceae hyaline degeneration hypothermia plant poisoning poisonous plants intestine injury intoxication macrophage phytotoxicity |
title_short |
Experimental intoxication by the leaves of <i>Melia azedarach</i> (Meliaceae) in cattle |
title_full |
Experimental intoxication by the leaves of <i>Melia azedarach</i> (Meliaceae) in cattle |
title_fullStr |
Experimental intoxication by the leaves of <i>Melia azedarach</i> (Meliaceae) in cattle |
title_full_unstemmed |
Experimental intoxication by the leaves of <i>Melia azedarach</i> (Meliaceae) in cattle |
title_sort |
Experimental intoxication by the leaves of <i>Melia azedarach</i> (Meliaceae) in cattle |
dc.creator.none.fl_str_mv |
Méndez González, María del Carmen Aragão, Marcos Elías, Fabiana Riet Correa, Franklin Gimeno, Eduardo Juan |
author |
Méndez González, María del Carmen |
author_facet |
Méndez González, María del Carmen Aragão, Marcos Elías, Fabiana Riet Correa, Franklin Gimeno, Eduardo Juan |
author_role |
author |
author2 |
Aragão, Marcos Elías, Fabiana Riet Correa, Franklin Gimeno, Eduardo Juan |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Ciencias Veterinarias cattle creatine kinase hematochezia Melia azedarach Meliaceae hyaline degeneration hypothermia plant poisoning poisonous plants intestine injury intoxication macrophage phytotoxicity |
topic |
Ciencias Veterinarias cattle creatine kinase hematochezia Melia azedarach Meliaceae hyaline degeneration hypothermia plant poisoning poisonous plants intestine injury intoxication macrophage phytotoxicity |
dc.description.none.fl_txt_mv |
Green leaves of <i>Melia azedarach</i> were administered at single doses ranging from 5 to 30 g/ kg bw to 11 calves. Clinical signs were depression, ruminal stasis, dry feces with blood, ataxia, muscle tremors, sternal recumbency, hypothermia and abdominal pain. Serum AST and CPK were increased. Signs appeared from 8 to 24 hours after dosing, and the clinical course lasted from 2 to 72 hours. Three calves dosed with 30g/kg bw died. The macroscopic findings included intestinal congestion, yellow discoloration of the liver, brain congestion and dry feces with blood in the rectum. The liver showed swollen and vacuolated hepatocytes. Necrotic hepatocytes were scattered throughout the parenchyma or concentrated in the periacinar zone. Degenerative and necrotic changes were observed in the epithelium of the forestomachs. There was also necrosis of the lymphoid tissue. Skeletal muscles showed hyaline degeneration and fiber necrosis. The necrotic fragments contained floccular or granular debris with infiltration by macrophages and satellite cells. Folhas verdes de Melia azedarach foram administradas em dose única a 11 bovinos nas doses de 5 a 30g/kg de peso vivo. Os sinais clínicos caracterizaram- se por depressão, atonia ruminal, fezes duras com sangue, incoordenação, tremores musculares, decúbito esternal, hipotermia e dores abdominais. Os níveis séricos de AST e CPK estavam aumentados. O aparecimento dos sinais clínicos foi observado entre 8-24 horas após a ingestão das folhas e o curso clínico durou entre 2 e 72 horas. Três animais que receberam 30g/kg morreram. Os achados macroscópicos caracterizaram-se por congestão dos intestinos e do cérebro, fígado amarelado e presença de fezes duras com sangue no reto. Os hepatócitos estavam tumefeitos e com vacuolização citoplasmática. Observaram-se hepatócitos necróticos distribuídos no parênquima ou próximos à veia centrolobular. Lesões degenerativas e necróticas foram observadas no epitélio dos pré-estômagos. Havia também necrose do tecido linfóide. Nos músculos esqueléticos observaram- se degeneração hialina e necrose das fibras. Os fragmentos necróticos apresentavam necrose flocular ou granular com infiltração de macrófagos e células satélites. Facultad de Ciencias Veterinarias |
description |
Green leaves of <i>Melia azedarach</i> were administered at single doses ranging from 5 to 30 g/ kg bw to 11 calves. Clinical signs were depression, ruminal stasis, dry feces with blood, ataxia, muscle tremors, sternal recumbency, hypothermia and abdominal pain. Serum AST and CPK were increased. Signs appeared from 8 to 24 hours after dosing, and the clinical course lasted from 2 to 72 hours. Three calves dosed with 30g/kg bw died. The macroscopic findings included intestinal congestion, yellow discoloration of the liver, brain congestion and dry feces with blood in the rectum. The liver showed swollen and vacuolated hepatocytes. Necrotic hepatocytes were scattered throughout the parenchyma or concentrated in the periacinar zone. Degenerative and necrotic changes were observed in the epithelium of the forestomachs. There was also necrosis of the lymphoid tissue. Skeletal muscles showed hyaline degeneration and fiber necrosis. The necrotic fragments contained floccular or granular debris with infiltration by macrophages and satellite cells. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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http://sedici.unlp.edu.ar/handle/10915/35792 |
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http://sedici.unlp.edu.ar/handle/10915/35792 |
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eng |
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eng |
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openAccess |
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