Search results for "digestive system"
showing 10 items of 1747 documents
Long-Term Evaluation of a Rat Model of Chronic Cholangitis Resembling Human Primary Sclerosing Cholangitis
2003
Primary sclerosing cholangitis (PSC) is a chronic cholestatic disorder with a presumed autoimmune aetiopathogenesis. We have recently described a novel organ-specific rat model of fibrosing cholangitis induced by intrabiliary administration of the hapten-reagent 2,4,6-trinitrobenzenesulfonic acid (TNBS) with similarities to human PSC. In the present report, we have evaluated the long-term outcome of TNBS-induced cholangitis in this model. Mild stenosis of the common bile duct of female Lewis rats (n = 18) was achieved by subtotal ligation and cholangitis induced by TNBS injection (50 mg/kg) into the dilated bile duct after a second laparotomy. After 8 and 12 months, we found no evidence of …
PReS-FINAL-2088: Risk of severe adverse events in juvenile idiopathic arthritis and pediatric-onset inflammatory bowel disease, treated with anti-tnf…
2013
Introduction: Severe adverse events have been described in children affected by Juvenile Idiopathic Arthritis (JIA) and Inflammatory Bowel Disease (IBD) treated with anti-tnf drugs. Objectives: To define the risk of severe adverse events in patients with JIA and IBD treated with anti-tnf drugs. Methods: This is a retrospective cohort study. All patients with JIA and IBD attending the "IRCCS Burlo Garofolo" of Trieste from 2000 to 2012 were enrolled. They were divided into 2 groups on the basis of the presence or absence of anti-tnf exposure. Severe adverse events were considered the followings: a) infections needing anti-tnf permanent suspension and/or hospitalization; b) autoimmune disease…
Liver Function Test Abnormalities in Patients with Inflammatory Bowel Diseases: A Hospital-based Survey
2014
Background and Aims Inflammatory bowel diseases (IBD) are frequently associated with altered liver function tests (LFTs). The causal relationship between abnormal LFTs and IBD is unclear. The aim of our study was to evaluate the prevalence and etiology of LFTs abnormalities and their association with clinical variables in a cohort of IBD patients followed up in a single center. Materials and Methods A retrospective review was undertaken of all consecutive IBD in- and outpatients routinely followed up at a single referral center. Clinical and demographic parameters were recorded. Subjects were excluded if they had a previous diagnosis of chronic liver disease. LFT abnormality was defined as …
Methylene blue-aided cholangioscopy in patients with biliary strictures: feasibility and outcome analysis
2008
BACKGROUND AND STUDY AIMS: Chromoendoscopy using methylene blue is employed in the gastrointestinal tract to delineate neoplastic lesions. We tested the value of chromoendoscopy during choledochoscopy for characterization of local inflammation, neoplasias, and other alterations in patients with biliary strictures. METHODS: Patients with suspected biliary lesions were scheduled for endoscopic retrograde cholangiography with subsequent cholangioscopy. After initial inspection of the bile duct, 15 ml methylene blue (0.1 %) was administered via the working channel of the cholangioscope. Newly appearing circumscribed or unstained lesions were judged according to their macroscopic type and staini…
Pantoprazole: from drug metabolism to clinical relevance.
2008
Conditions requiring inhibition of acid secretion, such as gastro-oesophageal reflux disease (GORD), peptic ulcers, non-ulcer dyspepsia or the use of NSAIDs, are very common, and their prevalence is expecting to rise as they are seen predominantly amongst the elderly. Among the drugs available to inhibit acid secretion, proton pump inhibitors (PPI) have been shown to have the best efficacy-safety ratio and have been used widely.This paper was intended to provide an overall presentation of one of these PPIs, pantoprazole.This study was first intended to give an overview of pantoprazole, so a Medline search was conducted using pantoprazole as unique search term, without publication date restr…
Pharmacokinetic and clinical evaluation of esomeprazole and ASA for the prevention of gastroduodenal ulcers in cardiovascular patients.
2012
Low-dose aspirin (ASA, 75 - 325 mg/day) is widely used for the primary and secondary prevention of cardiovascular (CV) diseases. However, the value of primary prevention ASA is uncertain as the reduction in occlusive events needs to be weighed against the significant increase in major bleedings. Prevention with antisecretory drugs has been proposed to reduce the incidence of ASA-induced gastrointestinal (GI) bleedings, but non-adherence to gastro-protection is of concern, as it significantly increases the risk of upper GI adverse events. Beside patients and physicians education, one approach to overcome non-adherence is the development of fixed-dose combination.This review explores the resu…
Duodenal perforation as presentation of gastric neuroendocrine tumour: A case report
2020
Highlights • Gastric neuroendocrine neoplasms (g-NENs) represent the most frequent digestive NENs and are increasingly recognized thanks to diffusion of upper gastrointestinal endoscopy. • g-NENs can be sporadic or associated with multiple endocrine neoplasia type 1 (MEN-1) and present with a functional Zollinger-Ellison syndrome. • We described a case of a 60 years old Caucasian male came to emergency room with diffuse abdominal pain and leukocytosis on blood tests. • At the level of the pyloric portion we found irregularly thickened walls associated with a small fluid collection and bubbles of free air. On exploratory laparoscopy we found a large perforation (about 5 cm of size) in the fi…
The identification of peroxisome proliferator-activated receptor alpha-independent effects of oleoylethanolamide on intestinal transit in mice
2009
Oleoylethanolamide (OEA) is an endogenous lipid produced in the intestine that mediates satiety by activation of peroxisome proliferator-activated receptor alpha (PPARalpha). OEA inhibits gastric emptying and intestinal motility, but the mechanism of action remains to be determined. We investigated whether OEA inhibits intestinal motility by activation of PPARalpha. PPARalpha immunoreactivity was examined in whole mount preparations of mouse gastrointestinal (GI) tract. The effect of OEA on motility was assessed in wildtype, PPARalpha, cannabinoid CB(1) receptor and CB(2) receptor gene-deficient mice and in a model of accelerated GI transit. In addition, the effect of OEA on motility was as…
Patients with Inflammatory Bowel Disease Are Not at Increased Risk of COVID-19: A Large Multinational Cohort Study
2020
The impact of COVID-19 on inflammatory bowel disease (IBD) patients under pharmacological immunosuppression is still not clearly understood. We investigated the incidence of COVID-19 and the impact of immunosuppression and containment measures on the risk of SARS-CoV-2 infection in a large IBD cohort, from a multicenter cohort from 21st of February to 30th of June, 2020. Ninety-seven patients with IBD (43 UC, 53 CD, one unclassified IBD) and concomitant COVID-19 over a total of 23,879 patients with IBD were enrolled in the study. The cumulative incidence of SARS-CoV-2 infection in patients with IBD vs. the general population was 0.406% and 0.402% cases, respectively. Twenty-three patients (…
Morphology of placental villi after premature delivery and its clinical relevance
1986
Based on a new concept of maturation of the placental villous tree and its disorders (synchronous and asynchronous immaturity, asynchronous maturity, hyperpermaturity, and terminal villi deficiency) we studied the possible effect of the placental villous tree on the premature onset of labour. In mature normal neonates irregular and asynchronous villous patterns were found in 50% of cases. In prematurely delivered neonates, only 33% of the corresponding placentas show synchronous immature villous patterns. Uterine bleeding in the first trimester was associated with a 42% of incidence of premature maturation of the villous tree. These findings strengthen the idea that hormonal imbalance in ea…