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Ítem A Syndrome of Severe Hypoglycemia and Acidosis in Young Immunosuppressed Diabetic Monkeys and Pigs—Association With Sepsis(Wolters Kluwer Health, Inc., 2012-12-27) Echeverri Junca, Gabriel JaimeBackground: Large animals treated with immunosuppressive drugs for preclinical experiments of transplantation have increased risks of infection, which can be compounded by the induction of diabetes if islet transplantation is planned. Methods: We report our experience with severe sepsis in two young cynomolgus monkeys and five pigs that were subjected to diabetes induction, immunosuppressive therapy, or islet allotransplantation. Results: In two monkeys and five pigs, infection was associated with a syndrome of profound hypoglycemia accompanied by severe acidosis, which was resistant to treatment. We do not believe that this syndrome has been reported previously by others. Conclusions: Despite treatment, this syndrome complicated the interpretation of blood glucose readings as a measure of islet graft function and resulted in death or the need for euthanasia in all seven animals. We tentatively suggest that the syndrome may be related to the presence of microorganisms that metabolize glucose and produce lactate.
Ítem Development of a Standardized Model for Liver Failure in Pigs: Anatomopathophysiologic Findings After Extended Liver Resection(Elsevier, 2012-09-01) Spada, MarcoEighteen pigs weighing a mean 19 ± 4 kg, were divided into group 1 (n = 2), that underwent resection of the left lateral lobe, group 2 (n = 2), resection of the left median and right median lobes; and group 3 (n = 18), resection of the left lateral, left median, right median, and right lateral lobes. All animals were followed for 5 days. Liver failure (n = 8) leading to animal death within 3 days after surgery was observed in 65% of group 3, whereas no group 1 or 2 animal experienced liver insufficiency. Multivariate analysis revealed that the extent of liver resection expressed as a percentage of total body weight <2.3%, international normalized ratio > 1.6 as postoperative day 2, serum bilirubin > 4.2 on postoperative day 2, and serum lactates > 9 mmol/L after resection were independent predictors of liver failure (P < .05). The number of resected liver lobes was not a good predictor of liver failure in swine, whereas the extent of resection expressed as a percentage of total body weight was an independent predictor of early liver failure. A resected liver-to-body weight ratio >2.3% was associated with a 65% probability of developing liver insufficiency. This parameter may be useful when developing a model of liver failure after extended liver resection in swine.Ítem Trasplante combinado hígado-riñón en la Fundación Valle del Lili, Cali, Colombia - Experiencia de un centro(Asociación Colombiana de Gastroenterología, 2016-04-01) Villegas O, Jorge IvánIntroducción: el trasplante combinado de hígado y riñón (CLK) ha mostrado ser una buena alternativa para pacientes con diagnóstico concomitante de enfermedad renal crónica (ERC) y enfermedad hepática terminal. Algunos estudios han mostrado además un beneficio inmunológico del trasplante combinado, con disminución de la tasa de rechazo del injerto renal.