Intoxicação por Ipomoea asarifolia em bovinos e ovinos no Rio Grande do Norte

Carvalho, Fabrício Kleber de Lucena; Dantas, Antônio Flávio Medeiros; Riet-Correa, Franklin; Pires, João P.S.; Silva, Fabrício O.R.

doi:10.1590/s0100-736x2014001100006

Cited by 10 publications

(9 citation statements)

References 8 publications

(16 reference statements)

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“…One of the fundamental points to be determined in this report was whether I. pes caprae causes storage disease or a condition compatible with that described in so-called tremorgenic syndromes. The absence of storage, confirmed by histopathological analysis and lectin-histochemical evaluation, indicates that I. pes caprae is responsible for a tremorgenic picture similar to those described in cases of Ipomoea asarifolia (Döbereiner et al 1960, Riet-Correa et al 2003, Araújo et al 2004, Barbosa et al 2005.…”

Section: Discussionmentioning

confidence: 55%

Tremorgenic syndrome caused by Ipomoea pes caprae in cattle

et al. 2020

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Poisonous plants are a significant cause of death among adult cattle in Brazil. Plants that affect the central nervous system are widely spread throughout the Brazilian territory and comprise over 30 toxic species, including the genus Ipomoea, commonly associated with a lysosomal storage disease and a tremorgenic syndrome in livestock. We describe natural and experimental Ipomoea pes caprae poisoning in cattle from a herd in the Northside of Rio de Janeiro, Brazil. Affected cattle presented episodes of severe ataxia, abnormal posture followed by falling, muscular tremor, contraction, and spasticity, more prominent in the limbs, intensified by movement and forthcoming, and recumbence. Grossly, a substantial amount of leaves and petioles were found in the rumen. Histopathological examination showed degenerative neuronal changes, mostly in cerebellar Purkinje cells, which were confirmed with Bielschowsky silver. The characteristic clinical changes and mild histological lesion strongly suggested a tremorgenic syndrome. Lectin- immunohistochemistry evaluation reinforced this hypothesis; all lectins tested failed to react with affect neurons and Purkinje cells, which ruled out an underlying lysosomal storage disease. One calf given I. pes caprae leaves experimentally developed clinical signs similar to natural cases. On the 28th day of the experiment, the plant administration was suspended, and the calf recovered within four days. I. pes caprae’s spontaneous tremorgenic syndrome in cattle is conditioned to exclusive feeding for several months. We were able to experimentally reproduce toxic clinical signs 12 days following the ingestion.

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Section: Discussionmentioning

confidence: 55%

Tremorgenic syndrome caused by Ipomoea pes caprae in cattle

et al. 2020

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“…Other neurological poisonous plants, such as Ipomoea spp. and Solanum paniculatum are endemic in northeastern Brazil and should be considerate in the differential diagnosis (Antoniassi et al 2007, Guaraná et al 2011, Carvalho et al 2014.…”

Section: Discussionmentioning

confidence: 99%

Spontaneous poisoning by Talisia esculenta in cattle

et al. 2019

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Talisia esculenta, commonly known as pitombeira, is a tree which fruits are widely consumed by human beings in northeastern Brazil. The aim of this work is to describe the epidemiological, clinical and pathological aspects of two outbreaks of spontaneous poisoning by T. esculenta in cattle in the dry region of Pernambuco, northeastern Brazil. The cases occurred in the municipalities of São Bento do Una and Belo Jardim. From a total of 25 adult cattle, eight become sick after ingest T. esculenta leaves and fruits. Four cattle died until 72 hours after the first clinical signs; which consisted in ataxia, reluctance to walk, tottering, head tremors muscle spasms in the limbs, rigidity of the pelvic limbs with wide base stance position, ruminal atony and, when stressed, presented falls and remained in abnormal positions. Two cattle were necropsied; the only significant finding was the presence of partially digested leaves, barks and seeds of T. esculenta in ruminal contents. Microscopically no lesions were observed. There is no specific therapy for poisoning by T. esculenta leaves. Prophylaxis consists in preventing cattle from gaining access to pasture areas containing the plant.

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“…Ipomoea asarifolia (Convolvulaceae) is found in the whole country, but the intoxication has been reported in sheep, goats, cattle, and buffalo in the northeastern region and on Marajó Island in the state of Pará. The disease occurs during the dry season when there is shortage of forage , Carvalho et al 2014a). Lambs are more frequently affected.…”

Section: Tremorgenic Plants: Ipomoea Asarifolia Chloris Virgata Chlmentioning

confidence: 99%

“…Lambs are more frequently affected. It has been demonstrated that the toxic compound is eliminated by milk affecting nursing lambs that are maintained confined while their mothers ingest I. asarifolia but do not show clinical signs themselves (Carvalho et al 2014a. The disease also occurs in nursing calves and lambs that remain confined while their mothers are in the field ingesting I. asarifolia (Carvalho et al 2014c).…”

Section: Tremorgenic Plants: Ipomoea Asarifolia Chloris Virgata Chlmentioning

confidence: 99%

Toxic plants affecting the nervous system of ruminants and horses in Brazil

et al. 2017

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This review updates information about neurotoxic plants affecting ruminants and equidae in Brazil. Currently in the country, there are at least 131 toxic plants belonging to 79 genera. Thirty one of these poisonous plants affect the nervous system. Swainsonine-containing plants (Ipomoea spp., Turbina cordata and Sida carpinifolia) cause numerous outbreaks of poisoning, mainly in goats, but cattle and horses are occasionally affected. The poisoning by Ipomoea asarifolia, a tremorgenic plant, is very common in sheep, goats and cattle in the Northeastern region and in the Marajo island. Poisoning by the pods of Prosopis juliflora are frequent in cattle in Northeastern Brazil; occasionally this poisoning affects goats and more rarely sheep. Some poisonings by plants, such as Hybanthus calceolaria, Ipomoea marcellia and Talisia esculenta in ruminants and Indigofera lespedezioides in horses were recently described and needs to be accurately investigated about its occurrence and importance. Other plants poisonings causing nervous signs in ruminants and equidae are less important, but should be considered for the differential diagnosis of neurologic diseases.

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Intoxicação por Ipomoea asarifolia em bovinos e ovinos no Rio Grande do Norte

Cited by 10 publications

References 8 publications

Tremorgenic syndrome caused by Ipomoea pes caprae in cattle

Tremorgenic syndrome caused by Ipomoea pes caprae in cattle

Spontaneous poisoning by Talisia esculenta in cattle

Toxic plants affecting the nervous system of ruminants and horses in Brazil

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