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Outbreaks of dermatopathy caused by Tephrosia noctiflora intoxication in Brazilian cattle.
Lima, Telma S; Silva Filho, Givaldo B; Fonseca, Silvio M C; Bom, Hisadora A S C; Silva, João P G; Frota, Maria L S L; Santos, José R P; Tenório, Mayra S M; Araújo, Emanuel A M; Barbosa, Fernanda P S; Wicpolt, Nathalia S; Mendonça, Fábio S.
Afiliação
  • Lima TS; Laboratory of Animal Diagnosis, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Silva Filho GB; Laboratory of Animal Diagnosis, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Fonseca SMC; Laboratory of Animal Diagnosis, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Bom HASC; Laboratory of Animal Diagnosis, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Silva JPG; Laboratory of Animal Diagnosis, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Frota MLSL; Laboratory of Animal Diagnosis, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Santos JRP; Laboratory of Animal Diagnosis, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Tenório MSM; Star Farm, Road 316, s/n, Atalaia, AL, 57690-000, Brazil.
  • Araújo EAM; Monteiro Ranch products, Rua Antonio Francisco de Lira, Buenos Aires, PE, 55845-000, Brazil.
  • Barbosa FPS; Cesmac Univeristy Center. Praia do Francês, Mal. Deodoro, AL, 57160-000, Brazil.
  • Wicpolt NS; Federal University of Bahia, Av. Adhemar de Barros, S/N, Ondina Campus, BA, 40170-115, Brazil.
  • Mendonça FS; Laboratory of Animal Diagnosis, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, PE, 52171-900, Brazil. Electronic address: fabio.mendonca@ufrpe.br.
Toxicon ; 231: 107201, 2023 Aug 01.
Article em En | MEDLINE | ID: mdl-37336392
This study aims to update the knowledge concerning the intoxication by Tephrosia noctiflora in Brazilian cattle herds by reporting new cases of intoxication in lactating cows, their calves and bulls and highlight the epidemiology, clinical signs, pathogenesis, gross, and microscopic lesions. The morbidity and mortality of this intoxication in the farms studied was low. Gross lesions in all affected cattle consisted of dermatitis with hyperpigmentation, crusts, ulceration, erythema, and lichenification in the skin of limbs, ventral abdomen, perianal and perineal areas of lactating calves and adult cattle. Microscopically, the main lesion observed consisted of severe dermatitis with parakeratotic hyperkeratosis, papillated proliferation, and diffuse, accentuated lymphoplasmacytic inflammatory infiltrate in the epidermis and dermis. The presence of skin lesions mainly in the limbs and ventral abdomen of cattle implies the pathogenesis of intoxication is related to a primary contact dermatitis, and the occurrence of similar lesions on the skin of nursing calves reinforces this hypothesis. The putative toxins of T. noctiflora have been thought to be rotenoids. Additional work is needed to define better if these compounds are the main toxin responsible for the dermatopathy observed in these herds.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Doenças dos Bovinos / Tephrosia / Dermatite Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Toxicon Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Doenças dos Bovinos / Tephrosia / Dermatite Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Toxicon Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido