Gut microbiota composition (influence on host metabolic pathways)

Gut microbiota composition refers to the taxonomic and functional makeup of microorganisms within the intestinal tract, which profoundly influences host metabolic pathways by generating signaling metabolites (e.g., short-chain fatty acids, bile acids, amino acid metabolites) that act on host cells, especially via modulation of enteroendocrine function, immune signaling, and metabolic regulation[1][2][3][4][6]. Rather than being a discrete molecular target (like a receptor or enzyme), it is a collective ecological entity whose composition and metabolism can be therapeutically modified to impact host health, notably in metabolic, inflammatory, and neurological diseases[1][2][3][4][5][6]. Because it is not a single molecule, receptor, or enzyme, but a broad community influencing numerous host pathways, "gut microbiota composition and host metabolic pathways" is not considered a canonical drug target; instead, it represents a system-level therapeutic axis.

Other names

Gut microbiome compositionintestinal microbiota compositionmicrobiota-metabolic interplay

Modulation of microbial population structure alters production of metabolites (e.g., short-chain fatty acids, bile acids, amino acid derivatives) that influence host receptors and pathways[1][2][3][4][6] Some drugs may directly target metabolic pathways of gut bacteria or indirectly impact composition, thereby influencing host metabolism[3]