Recent research has highlighted a group of gut bacteria, referred to as CAG-170, which may play a significant role in human health. While over 4,600 species of bacteria are estimated to reside in the human gut, a substantial portion remains unexplored, categorized as the "hidden microbiome." This term refers to species that have been identified through genomic analysis but have yet to be cultured in laboratory settings.
A study led by researchers at the University of Cambridge analyzed gut microbiome samples from over 11,000 individuals across 39 countries. The participants were divided into two groups: those with known medical conditions and those without. The findings indicated a correlation between certain bacterial species and health outcomes. Specifically, 373 species were found to be more abundant in healthy individuals, with CAG-170 showing a strong association with better health.
The researchers noted that CAG-170 appeared to contribute positively to gut microbiome balance by correlating with lower levels of dysbiosis, an imbalance of gut bacteria. Further genomic analysis revealed that CAG-170 possesses genes capable of producing vitamin B12 and enzymes that help break down carbohydrates and fibers, suggesting a supportive role for these bacteria in the microbiome.
While the study suggests a potential link between CAG-170 and health, the question of whether these bacteria contribute to good health or are simply present as a result remains unanswered. Future research is needed to explore the causal relationships and to investigate dietary influences on CAG-170 populations. This could pave the way for innovative probiotic developments aimed at enhancing gut health.