AGENT FOR IMPROVING INTESTINAL TRACT BARRIER FUNCTION

摘要

An agent for improving an intestinal tract barrier function, comprising, as an active ingredient, living cells of an enterobacterium, wherein the enterobacterium contains, in the genome thereof, at least one, preferably both, of two gene clusters each containing a group of genes encoding a protein constituting an ABC transporter and is capable of producing an acetic acid salt from a saccharide that is transported into cells by the ABC transporter; and a method for screening for a microorganism having an activity of improving an intestinal tract barrier function, which employs the presence of the gene clusters in the genome as an indicator.