Search results for " Colitis"
showing 10 items of 301 documents
Endoscopic confocal imaging.
2005
In vivo fluorescence endomicroscopy is a newly developed diagnostic tool enabling virtual in vivo histology of the mucosal layer during ongoing endoscopy. This review summarizes currently available data about the technique and clinical use of confocal endomicroscopy. Indications discussed include colorectal cancer evaluation, ulcerative colitis and surveillance, Barrett's esophagus, and detection of Helicobacter pylori infection in vivo.
Imaging techniques in inflammatory bowel disease: recent trends, questions and answers
2009
Summary Imaging techniques have undergone substantial progress in recent years and contribute significantly in the diagnosis of inflammatory bowel diseases in conjunction with patient history, clinical and laboratory examination. Modern cross-sectional imaging modalities such as computed tomography and magnetic resonance imaging allow an evaluation not only of the complete bowel wall of the small intestine, but also of extraluminal structures. They constitute a major diagnostic component in the initial workup, in stricturing or fistulizing disease and in suspected abscess. Transabdominal ultrasonography has been re-appreciated in these settings as an easy- and ready-to-use tool yielding rea…
Efficacy of budesonide-loaded mesoporous silica microparticles capped with a bulky azo derivative in rats with TNBS-induced colitis.
2019
Abstract A colon targeted drug delivery system for inflammatory bowel diseases (IBD), consisting in budesonide loaded mesoporous silica microparticles functionalized with a selective azo-molecular gate (M-Bud), has been evaluated for in vivo efficacy. Experimental colitis in male Wistar rats was induced by rectal instillation of 2,4,6-trinitrobenzenesulfonic acid (TNBS). M-Bud was orally administered to the rats as a suspension in water. Colon/body weight ratio, clinical activity score, and histological evaluation were used as inflammatory indices to measure the performance of the microparticles. The formulation was compared with a suspension prepared from the commercial drug Entocord®. Sta…
5-Aminosalicylsäure-assoziierte Pankreatitis
2008
Acute pancreatitis with severe belt-like upper abdominal pain developed within 1-4 weeks of starting medication in three patients (29-year-old man with ulcerative colitis; 43-year-old woman and 22-year-old woman with Crohn's disease) treated, for the first time, with 5-aminosalicylic acid (mesalazine), 500 mg three times daily. Concentrations of lipase initially were 545, 1182 and 3000 U/l, and of amylase 243, 449 and 129 U/l, respectively. Symptoms receded within a few hours after the drug had been discontinued, enzyme levels returning to normal in the course of the next 2-3 weeks. On repeating the drug in two of the patients, in lower dosage, the pancreatitis recurred within a few days. T…
Guanosine prevents nuclear factor-κB nuclear translocation ameliorating experimental colitis in rats
2018
Background inflammatory bowel diseases (IBDs), including Crohn’s disease (CD) and ulcerative colitis (UC), are prevalent and debilitating health problems worldwide. Due to the adverse effects of classical treatment for IBD, therapeutic options and approaches for these diseases continue to evolve. Guanosine, a guanine-based purine, is an extracellular signalling molecule that seems to exert anti-inflammatory and antioxidative effects in several in vivo and in vitro injury models. The aim of the present study was to investigate whether exogenous guanosine may have protective effects on 2,4-dinitrobenzene sulfonic acid (DNBS)-induced Colitis in rat. Methods Experimental Colitis was induced by …
IL-12 family members in experimental colitis
2008
Interleukin (IL)-12 p35/p40 is a heterodimeric cytokine that plays an important role in T helper (Th) cell polarization and Th1 T-cell differentiation. Recent findings have shown that both p35 and p40 can form other cytokines with different proteins (IL-23: p19/p40; IL-35: p35/EBI3). Furthermore, the cytokine IL-27 (EBI3/p28) has been identified as a member of the IL-12 family. Here, we discuss the recent findings on the role of IL-12 family members in experimental colitis. In particular, the role of IL-23 as a master regulator of effector T-cell activation is highlighted. These findings have important implications for the design of new therapeutic approaches in chronic intestinal inflammat…
Does uremic enterocolitis exist?
1981
In rats a severe but compensated chronic renal insufficiency was induced by stepwise 9/10 nephrectomy. Despite this severe chronic renal insufficiency we observed no relevant pathological changes in the intestinal mucosa. In particular, we found no evidence of mucosal erosions, ulceration or pseudomembranous colitis, findings which are traditionally thought to be characteristic of the uremic state. This was also true of those animals dying prematurely from uremia. Thus serious doubts arise about the existence of “uremic enterocolitis”, doubts which also proved justified after a critical review of the literature on human pathology.
Liver infarction in a patient with Clostridium Difficile colitis. A possible connection?
2019
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Inflammatory Bowel Diseases
1979
The endoscopic aspects of an inflammatory colon disease do not permit the differentiation of a nonspecific proctitis from a bacterial enterocolitis and an ulcerative proctitis.
Elevated serum eotaxin levels in patients with inflammatory bowel disease.
2002
OBJECTIVE: Eotaxin is a recently characterized chemokine with potent and selective chemotactic activity for eosinophils. Previous studies indicating that eosinophils accumulate and become activated in inflammatory bowel disease (IBD) led us to hypothesize that eotaxin is potentially involved in the pathophysiology of IBD and, therefore, that eotaxin would be increased in the serum of patients with IBD. The objective of this study was to test those assumptions. METHODS: We investigated 72 patients with IBD, 35 with ulcerative colitis, and 37 with Crohn’s disease. A total of 27 patients had active and 45 inactive disease; 26 were receiving corticosteroids. Eotaxin serum levels were determined…