<；P>；PROBLEM TO BE SOLVED: To provide a medicine and a food for recovering destroyed intestinal tract barrier functions, or to provide a medicine and a food which are effective for protecting the intestinal tract barrier, and to provide a medicine effective for diseases caused by the functions of the intestinal tract barrier, such as inflammatory intestinal diseases. <；P>；SOLUTION: The medicine or food composition for recovering permeability exasperation or undesired permeability or promoting the recovery, or for inhibiting or preventing undesired permeability exasperation contains lactobacillus, or a lipid ingredient (especially lipoteichoic acid) originated from lactobacillus or lipoteichoic acid originated from S. aureus, as an active ingredient. <；P>；COPYRIGHT: (C)2008,JPO&INPIT
