Microbial functional state and metabolic output

Microbial functional state and metabolic output refers to the integrated biochemical activity of the human microbiome, specifically the production of bioactive metabolites that interact with host signaling pathways (Nature Reviews Microbiology, 2016). This target represents a shift from traditional single-protein pharmacology toward systems-level modulation of the gut ecosystem. Key metabolic outputs include short-chain fatty acids (SCFAs), which regulate T-cell differentiation and intestinal barrier integrity, and secondary bile acids, which influence metabolic rate via TGR5 and FXR receptors (Nature, 2017). Pathological shifts in this output, such as increased production of trimethylamine (TMA) or hydrogen sulfide, are implicated in atherosclerosis and ulcerative colitis, respectively (Cell Host & Microbe, 2020). Therapeutic interventions include live biotherapeutic products (LBPs), prebiotics, and small-molecule inhibitors of microbial enzymes like tryptophanase or beta-glucuronidase (Science, 2019). Monitoring this state involves metabolomic profiling and metagenomic sequencing to assess the functional potential of the microbial community (Cell, 2019).

Other names

Gut microbiome functional profileMicrobial metabolomeMicrobiota metabolic outputFunctional dysbiosis

Modulation of the microbial ecosystem to alter the production of bioactive metabolites and restore homeostatic host-microbe signaling (Science Translational Medicine, 2020).