Dietary and Microbial Oxazoles Induce Intestinal Inflammation by Modulating Aryl Hydrocarbon Receptor Responses.

Genome-wide association studies have identified risk loci associated with the development of inflammatory bowel disease, while epidemiological studies have emphasized that pathogenesis likely involves host interactions with environmental elements whose source and structure need to be defined. Here, we identify a class of compounds derived from dietary, microbial, and industrial sources that are characterized by the presence of a five-membered oxazole ring and induce CD1d-dependent intestinal inflammation. We observe that minimal oxazole structures modulate natural killer T cell-dependent inflammation by regulating lipid antigen presentation by CD1d on intestinal epithelial cells (IECs).

The Transition of the Gastrointestinal Patient from Pediatric to Adult Care.

Transition is the long process of developing independent self-management skills whereas transfer is the actual move from pediatric to adult-centered provider. Structured anticipated transition works best with timelines of tasks to master and discussion of the stylistic differences between pediatric and adult practices. Disease-specific issues need to be addressed, such as earlier timelines for diet-based therapies, parental support for critical illnesses, and differences in therapeutic strategies.

Transition of the patient with IBD from pediatric to adult care-an assessment of current evidence.

Inflammatory bowel disease is a chronic disease of remitting and relapsing nature that is increasingly diagnosed in childhood or adolescence. The importance of the transition from pediatric to adult health care is increasingly recognized, yet the preparation of patient and family before transfer and early subsequent care in the adult health care environment can be variable and challenging. Pediatric providers need to start early and prepare patients in a stepwise fashion.

Dietary arachidonic and oleic acid intake in ulcerative colitis etiology: a prospective cohort study using 7-day food diaries.

Introduction: Dietary fatty acids may be involved in the etiology of ulcerative colitis (UC). Arachidonic acid (AA), an n-6 polyunsaturated fatty acid, is a precursor of the proinflammatory cytokines prostaglandin E2 and leukotriene B4, and its metabolism is competitively inhibited by oleic acid (OA). This study aimed to prospectively investigate whether AA is positively and OA is negatively associated with incident UC development, using data from 7-day food diaries.

An association between dietary arachidonic acid, measured in adipose tissue, and ulcerative colitis.

Background & Aims: Dietary arachidonic acid, an n-6 polyunsaturated fatty acid (n-6 PUFA), might be involved in the etiology of ulcerative colitis (UC). We performed a prospective cohort study to determine whether high levels of arachidonic acid in adipose tissue samples (which reflects dietary intake) are associated with UC.

Methods: We analyzed data collected from 57,053 men and women in the EPIC-Denmark Prospective Cohort Study from 1993 to 1997.