Relmβ is relevant for intestinal health as it functions to promote mucosal barrier integrity via up-regulating mucin secretion to support and maintain the protective mucus barrier, while also exerting immunoregulatory effects that attenuate mucosal damage and inflammation by promoting noninflammatory adaptive responses to intestinal infections [64,65,66,67]. Here, MUC5AC is linked to digestive system infectious disorder.