Abstract: Provided are a mixture of three species of Lactobacillus fermentum strain and Lactobacillus plantarum strain and use thereof. A composition according to one aspect including, as an active ingredient, a mixture of Lactobacillus fermentum strains GB102 and GB103 and Lactobacillus plantarum strain GB104; or a lysate or culture solution thereof, or an extract of the culture solution, can be usefully used for the prevention or treatment of muscle-related disorders or obesity by alleviating the decrease in grip strength induced by aging or reducing the change in intestinal microbial environment induced by aging.

Abstract: The present disclosure relates to a composition for preventing or treating metabolic diseases, in which the composition includes Bacteroides acidifaciens as an active ingredient. In addition, the present disclosure relates to a composition for oxidizing fat or inhibiting DPP-4, in which the composition includes Bacteroides acidifaciens as an active ingredient. In addition, the present disclosure relates to a transformant expressing a lean phenotype, in which an Atg7 gene is deleted in dendritic cells.

Abstract: The present disclosure relates to a composition for preventing or treating metabolic diseases, in which the composition includes Bacteroides acidifaciens as an active ingredient. In addition, the present disclosure relates to a composition for oxidizing fat or inhibiting DPP-4, in which the composition includes Bacteroides acidifaciens as an active ingredient. In addition, the present disclosure relates to a transformant expressing a lean phenotype, in which an Atg7 gene is deleted in dendritic cells.