Gut microbiota (None commonly used)

The **gut microbiota**, also known as intestinal flora or gastrointestinal microbiome, refers to the diverse community of microorganisms inhabiting the human gastrointestinal tract. This ecosystem plays essential roles in maintaining intestinal and systemic health by regulating immune responses, supporting digestion and nutrient absorption through fermentation processes that produce beneficial metabolites like short-chain fatty acids, protecting against pathogen colonization by competitive exclusion and secretion of antimicrobial compounds/cytokines, influencing energy metabolism via interaction with hormones/neurotransmitters along the gut-brain axis—and contributing to overall host-microbe mutualism required for homeostasis. Disruption ("dysbiosis") can lead to increased risk for infections such as *Clostridioides difficile*, chronic inflammation including IBDs/autoimmunity/metabolic syndrome/neurological disorders. Therapeutic strategies focus on restoring balanced microbial communities using diet modification/prebiotic/probiotic supplementation/fecal transplantation rather than targeting any single molecular entity within this system.

Other names

Intestinal floraGut floraGastrointestinal microbiomeMicrobiome

For interventions targeting gut microbiota homeostasis: - Modulation/restoration of microbial diversity/composition. - Enhancement or suppression of specific metabolic pathways/metabolites production. - Strengthening mucosal barrier function or immune modulation through altered microbe-host interactions.