Research Progress of NGAL in Inflammatory Bowel Disease / 胃肠病学

Inflammatory bowel disease (IBD) is a chronic and recurrent inflammatory disease of gastrointestinal tract, including Crohn's disease and ulcerative colitis. The exact etiology and pathogenesis of IBD are still not clear. Neutrophil gelatinase-associated lipocalin (NGAL) plays an important role in regulating intestinal immunity, maintaining intestinal epithelial cell barrier, and coordinating the composition of intestinal flora. In addition, NGAL is useful for helping the clinical testing of IBD. This article reviewed the research progress of NGAL in IBD.

Current Research Status of Pathogenesis, Diagnosis and Treatment of Inflammatory Bowel Disease: MiRNAs With Intestinal Immunity and Barrier Function / 胃肠病学

MicroRNAs (miRNAs) are a group of short non-coding RNAs consisting of about 22 nucleotides that downregulate gene expression at posttranscriptional level through binding to the 3'-untranslated region (3'-UTR) of target mRNAs. With the increase in research about miRNAs, it is found that miRNAs could modulate the differentiation and secretion of immunocytes as well as the function of intestinal mucosal barrier. Besides, miRNAs could regulate the composition of intestinal microbiome, and could be used as crucial biomarkers for the diagnosis of inflammatory bowel disease (IBD). In this paper, the roles of miRNAs in the pathogenesis of IBD were reviewed through intestinal immunity and barrier function.