Acta Vet. Brno 2011, 80: 235-239

Spontaneous poisoning of goats by the plant Ipomoea sericophylla (Convolvulaceae) in Brazil – a case report

Fábio de S. Mendonça1, Joaquim Evêncio-Neto1, Raquel F. de Albuquerque1, David Driemeir2, Lázaro M. Camargo3, Renata G. S. Dória3, Fabiana M. Boabaid4, Flávio Henrique B. Caldeira4, Edson M. Colodel4

1Department of Animal Morphology and Physiology, Federal Rural University of Pernambuco, Brazil
2Department of Veterinary Clinical Pathology, Faculty of Veterinary Medicine, Federal University of Rio Grande do Sul, Brazil
3Faculty of Agrarian Science, University of Cuiabá, Mato Grosso, Brazil
4Department of Veterinary Medical Clinic, Faculty of Veterinary Medicine, Federal University of Mato Grosso, Brazil

The aim of this study was to report a neurological disease in goats caused by the plant I. sericophylla. The epidemiology, clinical signs, histological findings and the results of the lectin histochemistry analysis of a nervous cells and epithelial cells are also reported. Five goats that remained with neurological signs were examined in more detail. Two goats were necropsied. Histological lesions consisted of neurons with thin cytoplasm vacuolation, presence of axonal spheroids and vacuolation in pancreatic acinar cells, thyroid folliculars cells, hepatocytes and renal tubular cells. On lectin-histochemical analysis, cerebellar cells, pancreatic acinar cells and follicular thyroid cells showed positive staining for Concanavalia ensiformis, Triticum vulgaris, succinylated Triticum vulgaris and Lens culinares, which indicate the storage of α-D-mannose, α-D-glucose, β-D-N-acetyl-glucosamine, and acetyl-neuraminic acid. It is concluded that I. sericophylla is an important toxic plant that causes lysosomal storage disease in goats at semi-arid region of Pernambuco, Brazil.


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