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Colitis-associated cancer (CAC) is a major complication of inflammatory bowel diseases. We show that components of the inflammasome are protective during acute and recurring colitis and CAC in the dextran sulfate sodium (DSS) and azoxymethane + DSS models. Mice lacking the inflammasome adaptor protein PYCARD (ASC) and caspase-1 demonstrate increased disease(More)
It is well established that the intestinal microbiota plays a key role in the pathogenesis of Crohn's disease (CD) and ulcerative colitis (UC) collectively referred to as inflammatory bowel disease (IBD). Epidemiological studies have provided strong evidence that IBD patients bear increased risk for the development of colorectal cancer (CRC). However, the(More)
Aim: Magnetic resonance imaging (MRI) based colonography represents a new imaging tool which has mainly been investigated for polyp screening. To evaluate this approach for patients with inflammatory bowel disease (IBD), we compared MRI based colonography with conventional colonoscopy for assessing the presence and extent of colonic inflammation. Patients(More)
Activation of alloreactive T cells by APCs such as dendritic cells (DC) has been implicated as crucial step in transplant rejection. In contrast, it has been proposed that macrophages (Mphi) maintain tolerance toward alloantigens. It was therefore the aim of this study to further analyze the T cell-stimulatory capacity of mature DC and Mphi in vitro using(More)
In inflammatory diseases such as Crohn's disease (CD) and ulcerative colitis (UC), one would expect that TNF or IL-6 stimulates the hypothalamus, which activates the hypothalamus-autonomic nervous system (HANS) axis and the hypothalamic-pituitary-adrenal (HPA) axis in a parallel fashion. The study was initiated in order to investigate the parallelism of the(More)
BACKGROUND Experimental studies have shown that luminal antigens are involved in chronic intestinal inflammatory disorders such as Crohn's disease and ulcerative colitis. Alteration of the intestinal microflora by antibiotic or probiotic therapy may induce and maintain remission. The aim of this randomized, placebo-controlled trial was to determine the(More)
BACKGROUND There is a dire need for reliable prognostic markers that can guide effective therapeutic intervention in Crohn's disease (CD). We examined whether different phenotypes in CD can be classified based on colonic microRNA (miRNA) expression and whether miRNAs have prognostic utility for CD. METHODS High-throughput sequencing of small and total RNA(More)
BACKGROUND The impact of tomato lycopene extract (TLE) on intestinal inflammation is currently unknown. We investigated the effect of TLE on lipopolysaccharide (LPS)-induced innate signaling and experimental colitis. METHODOLOGY/PRINCIPAL FINDINGS Mice were fed a diet containing 0.5 and 2% TLE or isoflavone free control (AIN-76). The therapeutic efficacy(More)
Dehydroepiandrosterone in relation to other adrenal hormones during an acute inflammatory stressful disease state compared with chronic inflammatory disease: role of interleukin-6 and tumour necrosis factor Abstract Objective: Serum levels of dehydroepiandrosterone (DHEA) and DHEA sulphate (DHEAS) are low in chronic inflammatory diseases, although the(More)