Gut microbial community composition (GM)

The gut microbial community composition, commonly known as the gut microbiota, refers to the vast and diverse population of microorganisms, including bacteria, archaea, fungi, and viruses, that reside in the human digestive tract. This complex ecosystem functions as a metabolic organ, contributing to the breakdown of dietary fibers into short-chain fatty acids, the synthesis of vitamins K and B12, and the maintenance of the intestinal mucosal barrier (NIH, 2023). Beyond local digestion, the gut microbiota plays a pivotal role in systemic health by modulating the host's immune system and communicating with the central nervous system via the gut-brain axis (Nature Reviews Microbiology, 2022). Dysbiosis, or the pathological alteration of this community's composition, is a hallmark of several diseases, most notably recurrent Clostridioides difficile infection and inflammatory bowel disease (PubMed, 2021). Therapeutic interventions, such as fecal microbiota transplantation and defined microbial consortia like SER-109, target this community to restore ecological balance and suppress pathogen overgrowth (FDA, 2023). As research progresses, the gut microbiota is increasingly recognized as a modifiable target for treating metabolic, autoimmune, and even neuropsychiatric conditions.

Other names

Gut microbiotaGut microbiomeIntestinal floraGastrointestinal microbiotaIntestinal microbiota

Restoration of microbial diversity and ecological balance to suppress pathogen overgrowth, competitive exclusion, and modulation of host inflammatory and metabolic pathways.