depressive disorders are more common among persons with chronic diseases such as inflammatory bowel disease and anti-inflammatory effect of some antidepressants such as amitriptyline has been reported. acetic acid colitis was induced in both reserpinised (depressed) and non-reserpinised (normal) rats. reserpinised groups received reserpine (6 mg/kg, i.p.) one hour prior to colitis induction. th...

Lactobacillus rhamnosus GG was assessed for its ability to alleviate DSS-induced colitis in mice and activate epidermal growth factor receptor and Akt signaling in intestinal epithelial cells. In this study mice were treated with DSS to induce colitis and they were given Lactobacillus GG fermented milk to assess the effect of probiotic on colitis. Lactobacillus GG fermented milk significantly r...

The increased incidence of Crohn's disease in smokers has been recently reported, suggesting a strong association of cigarette smoke (CS) with colitis. However, the mechanism of the action of CS on colitis has not yet been explored. Here, we demonstrate that CS exposure is sufficient to induce colitis in mice. Interestingly, the colitis is mainly mediated by Th1, but not Th17, responses. CD4+ T...

Checkpoint inhibitors are immune-stimulatory antibodies that have transformed the management and prognosis of individuals with metastatic melanoma and other cancers. Checkpoint inhibitor-induced colitis is an increasingly recognized immune-related adverse event that shares many of the same phenotypical, serological, and histological characteristics of both Crohn's disease and ulcerative colitis...

Blocking the mevalonate pathway for cholesterol reduction by using statin may have adverse effects including statin-induced colitis. Moreover, one of predisposing factors colitis is an imbalanced CD4+ T cell, which can be observed on complete deletion HMG-CoA reductase (HMGCR), a target statins. In this study, we inquired geranylgeranyl pyrophosphate (GGPP) responsible maintaining T-cell homeos...

Inflammatory bowel disease (IBD) is multifactorial and involves immunological, environmental and genetic factors. Although there are no animal models that effectively mimic human IBD, experimental models allow us to analyze the mechanisms of chronic intestinal inflammation. IBD can be induced in mice by dextran sulfate sodium (DSS) or by a 2,4,6-trinitrobenzene sulfonic acid (TNBS)‑ethanol enem...

trinitrobenzene sulfonic acid (tnbs)-induced colitis is one of the most common methods for studying inflammatory bowel disease in animal models. several factors may, however, affect its reproducibility, rate of animal mortality, and macroscopic and histopathological outcomes. our aim was to validate the main contributing factors to this method and compare the effects of different reference drug...

The propensity of a range of parasitic helminths to stimulate a Th2 or regulatory cell-biased response has been proposed to reduce the severity of experimental inflammatory bowel disease. We examined whether infection with Schistosoma mansoni, a trematode parasite, altered the susceptibility of mice to colitis induced by dextran sodium sulfate (DSS). Mice infected with schistosome worms were re...

DSS induced colitis is a chronic inflammatory disease characterized by inflammation in the gastrointestinal tract, which destabilizes the gut and induces an uncontrolled immune response. Although DSS induced colitis is generally thought to develop as a result of an abnormally active intestinal immune system, its pathogenesis remains unclear. Gene associated with retinoid interferon induced mort...

Purpose: In this study, the effect on heart, kidneys and liver organs in TNBS-induced Ulcerative colitis was investigated. Method: Twenty mice were randomly divided into two groups, which included normal group and model group. The model of chronic colitis was induced by 50% TNBS. The model of chronic colitis was verified by body weight, H&E staining. Heart, kidneys and liver organs were tested ...