“…Lactobacilli spp., E. coli -Nisle 1917, Bifodobacteria spp., some Streptococcus types, and the yeast Saccharomyces boulardii are all considered probiotics [ 60 ]. Recently, their application as adjuvant therapy in IBS treatment mostly showed positive results [ 111 , 112 , 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 123 , 124 ]. In addition, administration of Akkermansia muciniphila and Lactobacillus sakei OK67 to high-fat diet (HFD) fed mice were independently able to enhance tight-junction function, increasing occludin gene expression and decreasing intestinal permeability [ 125 , 126 ].…”