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Transitional care for patients with IBD focuses on efforts to successfully transfer care from pediatric to adult providers while encouraging the assumption of health care responsibility. As 25% of patients will be diagnosed with IBD before the age of 18 years, many will undergo this process. Efforts to enhance this process have included transition clinics and other means to improve patient comfort with transition and develop the skill of health care self-management. Currently, most pediatric practitioners provide transition care with informal education and emphasize independence without formal programs. A variety of tools to assess transition readiness have been developed. Given the varied disease process, often varied and subjective outcomes, and lack of studies such as randomized controlled trials, further data are necessary to determine the best avenue to transition and assess outcomes. Critically relevant to providing adequate care to transitioning patients includes understanding the development of self-management skills and the developmental processes relevant to young adults with IBD. Transition represents an area for quality improvement, and although progress has been made in recognition and promotion of transition practices, future directions in research will allow improved understanding of the evidence-based practices and needs of these individuals to further enhance their care.

Wireless capsule endoscopy (CE) was introduced in 2000 as a less invasive method to visualize the distal small bowel in adults. Because this technology has advanced it has been adapted for use in pediatric gastroenterology. Several studies have described its clinical use, utility, and various training methods but pediatric literature regarding CE is limited. This clinical report developed by the Endoscopic and Procedures Committee of the North American Society of Pediatric Gastroenterology, Hepatology and Nutrition outlines the current literature, and describes the recommended current role, use, training, and future areas of research for CE in pediatrics.

Sirtuin-6 (Sirt6) is a critical epigenetic regulator, but its function in the gut is unknown. Here, we studied the role of intestinal epithelial Sirt6 in colitis-associated intestinal epithelial injury. We found that Sirt6, which is predominantly expressed in epithelial cells in intestinal crypts, is decreased in colitis in both mice and humans. Colitis-derived inflammatory mediators including interferon-γ and reactive oxygen species strongly inhibited Sirt6 protein expression in young adult mouse colonocyte (YAMC) cells. The susceptibility of the cells to injurious insults was increased after knockdown of Sirt6 expression. In contrast, YAMC cells with Sirt6 overexpression exhibited more resistance to injurious insult. Furthermore, intestinal epithelial-specific Sirt6 (Sirt6 IEC-KO) knockout mice exhibited greater susceptibility to dextran sulfate sodium (DSS)-induced colitis. RNA sequencing transcriptome analysis revealed that inflammatory mediators such as tumor necrosis factor (TNF)-α suppressed expression of R-spondin-1 (Rspo1, a critical growth factor for intestinal epithelial cells) in Sirt6-silenced YAMC cells in vitro. In addition, lipopolysaccharide was found to inhibit colonic Rspo1 expression in Sirt6 IEC-KO mice but not their control littermates. Furthermore, Sirt6 IEC-KO mice with DSS-induced colitis also exhibited in a significant decrease in Rspo1 expression in colons. In vitro, knockdown of Rspo1 attenuated the effect of ectopic expression of Sirt6 on protection of YAMC cells against cell death challenges. In conclusion, Sirt6 plays an important role in protecting intestinal epithelial cells against inflammatory injury in a mechanism associated with preserving Rspo1 levels in the cells.

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