IL23R and irritable bowel syndrome: An interplay between the microbiota, immune system, and IBD has been described in terms of decreases in Bacteroides and Firmicutes, along with increases in Clostridium, Gammaproteobacteria, Actinobacteria, enteroinvasive Escherichia coli (EIEC), and ILC1s, with high expression of IL-17A, IL-22, and IL-23 receptor (IL-23R) [166].