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
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/35792

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oai_identifier_str oai:sedici.unlp.edu.ar:10915/35792
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network_name_str SEDICI (UNLP)
spelling 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
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info:eu-repo/semantics/publishedVersion
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