Lesiones renales y pancreáticas inducidas por ipomoea carnea en cabras
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Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias
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Ipomoea carnea es una planta tóxica debido a los alcaloides swainsonina y calisteginas, que provoca pérdidas económicas en la producción animal del nordeste argentino. El propósito de este estudio fue describir las lesiones microscópicas verificadas en páncreas y riñón, así como los cambios del perfil bioquímico renal causados por la intoxicación experimental con I. carnea en caprinos. Se emplearon 9 cabras alimentadas con alfalfa; 4 de ellas obraron como testigos y las 5 restantes fueron sometidas a la ingestión de hojas de I. carnea a razón de 50 g/kg/día durante 53 días, fecha en que fueron sacrificadas debido al grave deterioro de su salud. Semanalmente se realizaron exámenes clínicos y extracciones de sangre y orina. Urea y creatinina incrementaron progresivamente su concentración sérica en los animales intoxicados, quienes también revelaron anormalidades en el urianálisis. Los órganos más afectados fueron páncreas y riñón. Además de la vacuolización citoplasmática descripta por otros autores, en el presente estudio se constató la presencia de contenido eosinofilico intratubular y ensanchamiento del espacio de Bowman en los riñones, daños que explicarían las anormalidades detectadas en orina y sangre. Tales cambios asumen utilidad al momento de realizar el diagnóstico de esta intoxicación.
Ipomoea carnea is a toxic plant due to the alkaloids swainsonine and calystegines, which causes animal production economic losses in Northeast Argentina. The purpose of this study was to describe microscopic lesions verified in pancreas and kidney, as well as renal biochemical profile changes caused by I. carnea experimental intoxication in goats. Nine goats fed on alfalfa hay were used; four of them were controls and the five remainder were submitted to the ingestion of I. carnea leaves (50 g/kg/day during 53 days). At this time these animals were sacrificed due to its serious health deterioration. Clinical exams, as well as blood and urine sampling, were weekly carried out. Urea and creatinine progressively increased their serum concentration in the intoxicated animals, which also revealed abnormalities in the urine composition. Pancreas and kidneys were gravely affected. Besides the intracellular vacuolization already described by other authors, the presence of an intratubular eosinophillic content, as well as an expansion of Bowman space in the kidneys, were verified in present study. These damages would explain the abnormalities detected in urine and blood. Such changes are useful to optimize the diagnosis of this intoxication.
Ipomoea carnea is a toxic plant due to the alkaloids swainsonine and calystegines, which causes animal production economic losses in Northeast Argentina. The purpose of this study was to describe microscopic lesions verified in pancreas and kidney, as well as renal biochemical profile changes caused by I. carnea experimental intoxication in goats. Nine goats fed on alfalfa hay were used; four of them were controls and the five remainder were submitted to the ingestion of I. carnea leaves (50 g/kg/day during 53 days). At this time these animals were sacrificed due to its serious health deterioration. Clinical exams, as well as blood and urine sampling, were weekly carried out. Urea and creatinine progressively increased their serum concentration in the intoxicated animals, which also revealed abnormalities in the urine composition. Pancreas and kidneys were gravely affected. Besides the intracellular vacuolization already described by other authors, the presence of an intratubular eosinophillic content, as well as an expansion of Bowman space in the kidneys, were verified in present study. These damages would explain the abnormalities detected in urine and blood. Such changes are useful to optimize the diagnosis of this intoxication.
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Ríos, Elvio Eduardo, et al., 2009. Lesiones renales y pancreáticas inducidas por ipomoea carnea en cabras. Revista Veterinaria. Corrientes: Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias, vol. 20, no. 1, p. 45-49. ISSN 1669-6840. http://dx.doi.org/10.30972/vet.2011882
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