Non-Helicobacter pylori gut microbiota

The non-Helicobacter pylori gut microbiota refers to the diverse community of microorganisms, including bacteria, archaea, fungi, and viruses, that inhabit the gastrointestinal tract excluding the H. pylori species. This complex ecosystem is essential for maintaining host homeostasis by facilitating the fermentation of non-digestible carbohydrates, synthesizing vitamins such as B12 and K, and providing a barrier against enteric pathogens (Source: Nature Reviews Microbiology, 2016). Beyond digestion, these microbes interact extensively with the host immune system, influencing both local and systemic inflammatory responses (Source: Science, 2017). Dysbiosis, or the imbalance of these microbial populations, has been implicated in the pathogenesis of numerous diseases, including inflammatory bowel disease (IBD), obesity, and Clostridioides difficile infection (Source: Cell, 2019). Therapeutic interventions targeting this microbiota include probiotics, prebiotics, and fecal microbiota transplantation (FMT), which aim to restore a healthy microbial balance (Source: The Lancet, 2017). Recent drug development efforts are also exploring postbiotics and small molecules that specifically modulate microbial metabolic pathways to treat metabolic and autoimmune disorders (Source: Nature Medicine, 2020).

Other names

Gut microbiomeIntestinal microbiotaNon-H. pylori gastric microbiotaCommensal gut floraGastrointestinal microbiota

Modulation of microbial community structure, restoration of commensal diversity, competitive inhibition of pathogens, and production of bioactive metabolites like short-chain fatty acids (SCFAs).