Sex-specific metabolic alterations in the type 1 diabetic brain of mice revealed by an integrated method of metabolomics and mixed-model.

Type 1 diabetes (T1D) can cause brain region-specific metabolic disorders, but whether gender influences T1D-related brain metabolic changes is rarely reported. Therefore, here we examined metabolic changes in six different brain regions of male and female mice under normal and T1D conditions using an integrated method of NMR-based metabolomics and linear mixed-model, and aimed to explore sex-specific metabolic changes from normal to T1D. The results demonstrate that metabolic differences occurred in all brain regions between two genders, while the hippocampal metabolism is more likely to be affected by T1D. At the 4th week after streptozotocin treatment, brain metabolic disorders mainly occurred in the cortex and hippocampus in female T1D mice, but the striatum and hippocampus in male T1D mice. In addition, anaerobic glycolysis was significantly altered in male mice, mainly in the striatum, midbrain, hypothalamus and hippocampus, but not in female mice. We also found that female mice exhibited a hypometabolism status relative to male mice from normal to T1D. Collectively, this study suggests that T1D affected brain region-specific metabolic alterations in a sex-specific manner, and may provide a metabolic view on diabetic brain diseases between genders.

Risk factors associated with the development of hyperamylasemia and post-ERCP pancreatitis in the Cuban National Institute / Factores de riesgo con el desarrollo de la hiperamilasemia y pancreatitis post PCRE en el Cuban National Institute

Contexto: La pancreatitis aguda es la complicación más frecuente de la PCRE y algunos factores de riesgo son asociados con el desarrollo de hiperamilasemia y pancreatitis post PCRE. Objetivos: Identificar factores nuevos asociados con hiperamilasemia y pancreatitis post PCRE en pacientes que acudieron a nuestro centro. Material y métodos: Un estudio retrospectivo de cohorte se llevó a cabo en 170 pacientes en quienes se realizó una CPRE diagnóstico-terapéutica por enfermedad biliopancreática. 67 pacientes desarrollaron hiperamilasemia (39,4%) y 6 pancreatitis post PCRE (3,5%). Se aplicaron los siguientes criterios diagnósticos: Hiperamilasemia: elevación de la amilasa sérica por encima del valor normal (90IU).Pancreatitis aguda post PCRE: dolor abdominal continuo por más de 24 horas y elevación de la amilasa tres veces por encima del valor normal. Resultados: El número de canulaciones, más de 4 (19 pacientes), (p=0,006; RR= 3,00) se asoció significativamente con el desarrollo de la hiperamilasemia y la puesta de stents biliares (14 pacientes) se asoció como un factor protector (p=0,00; RR= 0,39). Los factores asociados con el desarrollo de la pancreatitis post PCRE se relacionaron con el paciente (localización peridiverticular de la papila (p=0,00; RR= 2,00) y disfunción del Esfinter de Oddi (p=0,000; RR=1,20). Conclusiones: Factores técnicos fueron asociados con el desarrollo de la hiperamilasemia, sin embargo, los relacionados con el desarrollo de la pancreatitis post PCRE fueron mayoritariamente relacionados al paciente.

Context: Acute pancreatitis is the most common complication in ERCP, and some risk factors were associated with the development of hyperamylasemia and post-ERCP pancreatitis. Objectives: identifying new factors associated with the development of hyperamylasemia or post-ERCP pancreatitis in patients attended at our center. Material and methods: A (retrospective) cohort study was carried out in 170 patients on which a diagnostic-therapeutic ERCP was done due to biliopancreatic disease. 67 patients developed hyperamylasemia (39.4%) and 6 post-ERCP pancreatitis (3.5%). The following diagnostic criteria were applied: Hyperamylasemia: increase in the serum amylase level above the normal value (90I/U). Acute post-ERCP pancreatitis: clinical: continuous abdominal pain for over 24 hours and biochemical: elevation of amylase 3 times above normal value (90U/I). Results: The number of cannulations more than 4 (19 patients), (p=0.006; RR= 3.00) was associated significantly with the development of hyperamylasemia and the placing of biliary stent (14 patients), (p=0.00; RR= 0.39) was a protective factor. The factors associated with the development of post-ERCP pancreatitis were related with the patient (peridiverticular location of the papilla (p=0.00; RR= 2.00) and the sphincter of Oddi dysfunction (p=0.000; RR=1.20). Conclusion: Technical factors were associated with the development of hyperamylasemia, however, the factors associated with the development of post-ERCP pancreatitis in our universe of study were related mainly with the patient.

PCRE: ampulotomía o fistulotomía suprapapilar con needle knife para acceder a la vía biliar en canulación dificil / ERCP: ampulotomy or suprapapillary fistulotomy with needle knife to access bile ductin difficult cannulation

INTRODUCCIÓN: la canulación profunda de la via biliar principal es requisito para una Pancreato-colangiografía Retrograda Endoscópica (PCRE) de carácter terapéutico. El pre corte es una técnica practicada en casos de canulación difícil. Objetivo: Reportar los casos de pacientes con canulación difícil y fistulotomia suprapapilar como un método para la canulación selectiva del colédoco. Reportar la eficacia, hallazgos demográficos, endoscópicos y complicaciones de éste procedimiento. MATERIAL Y MÉTODOS: estudio prospectivo, descriptivo y observacional de casos. Se ha realizado en 93 pacientes sometidos a PCRE con canulación difícil en quienes se practicó el pre corte tipo Fistulotomia, en un Centro privado de Endoscopia Digestiva del 2000 al 2010 en Lima. RESULTADOS: En 1205 (100%) CPRE se hicieron 1152 (96%) papiloesfinterotomias, de éstos en 93 casos (8%) casos se hizo fistulotomia previa a la papiloesfinterotomia. El grupo atareo más frecuente fue de 61 a 70 años, la relación F:M, 2.4:1. La eficacia fue 96%, los hallazgos endoscópicos más frecuentes fueron Odditis, impactación de cálculo y la presencia de ampuloma, los diagnósticos finales fueron enfermedad litiásica (34%), seguida de la Odditis con o sin litiasis coledociana (29%), en el 75% de casos se realizó terapéutica, el 8.5% de casos presentó complicaciones (pancreatitis y sangrado). No se registró perforaciones ni colangitis. CONCLUSIONES: en esta serie la fistulotomia en casos de canulación difícil es eficaz, es más frecuente en casos de Odditis, cálculo impactado y ampuloma y las complicaciones son bajas. RECOMENDACIONES: el pre corte tipo fistulotomia está dirigida a pacientes que requieren PCRE terapéutica, la decisión de realizarla debe ser precoz, la firma de un consentimiento informado es primordial.

INTRODUCTION: Biliary conducts deep cannulation is a requirement for therapeutic Endoscopic Retrograde Cholangio-Pancreatography (ERCP). The pre-cut papillotomy is a technique for difficult cannulation cases. Aims: Report cases of hard cannulation and suprapapilar fistulotomy as a method for selective common bile duct cannulation. Report efficacy, demographic and endoscopic findings and complications of this procedure. MATERIALS AND METHODS: Observational, descriptive and prospective study of cases. Sample of 93 patients who had a difficult cannulation ERCP, in which suprapapilar fistulotomy pre-cut type was done, in a private digestive endoscopic center between 2000 and 2010 in Lima, Peru. RESULTS: 1205 (100%) ERCP were made 1152 (96%) papillosphincterotomies. Fistulotomy was done in 93 cases (8%) of these papillosphincterotomies. The most prevalent age group was 61 to 70 years old, the female-male proportion was 2.4:1. The efficacy was 96%. The most prevalent endoscopy findings were odditis, gallstone impactation and ampulloma presence, final diagnosis were lithiasic disease (34%), Odditis with or without common bile duct lithiasis (29%). Therapeutic ERCP was done in 75% of the cases, 8.5% showed complications (pancreatitis and bleeding). No perforation or cholangitis were registered. CONCLUSIONS: In this case series, fistulotomy in difficult cannulation procedures had good efficacy. Is most prevalent in cases with odditis, gallstone impactation and ampulloma. Complications of the procedure are low. RECOMMENDATIONS: The fistulotomy type of pre-cut is leaded for patients who require therapeutic ERCP. The decision for doing the procedure must be precocious and informed consent is primordial.

Pancreatocolangiografía retrograda endoscópica y esfinterotomía en las parasitosis / Endoscopic retrograde colangio pancreatography and esphinterotomy in parasitic diseases

Presentamos seis pacientes con obstrucción de la vía billar debida a parásitos (Fasciola hepática, Ascaris lumbricoides y quiste hidatídico) que se diagnosticaron y manejaron endoscópicamente. Este es el primer trabajo nacional que resalta la importancia de la pancreatocolangiografía retrógrada endoscópica en el manejo de estas parasitosis. Por otro lado se destaca que no obstante la litiasis coledociana es la causa más común de ictericia extrahepática; debe considerarse a la parasitosis de la vía biliar en el diagnóstico diferencial.

We report six patients with billary duct obstruction due to parasites (Fasciola hepatica, ascarlasis and hydatid cyst) that were diagnosed and managed with the endoscopic approach. This is the first national paper which relevants the importance of endoscopic retrograde cholangio pancreatography in the management of this parasitosis. Despite choledocholithiasis is the most common cause of extrahepatic jaundice, biliary tree parasitosis must be considered in the differential diagnosis.