Your gut microbiome may be more contagious than scientists thought
Scientists using 'reverse ecology' have discovered that gut bacterial species are composed of distinct populations adapted to specific internal conditions. These findings suggest that certain bacterial variants are linked to chronic diseases like cancer and diabetes, potentially enabling more precise medical treatments.
Why it matters
Moving beyond species-level analysis to population-level microbiome research could revolutionize personalized medicine and disease diagnostics.
The human gut is home to trillions of microorganisms (the microbiome), a vast community that helps shape digestion, immune function and metabolism. Now, researchers led by the University of Vienna have found that many gut bacterial species are more complex than they appear.
Using an analytical strategy known as 'reverse ecology,' the team showed that individual bacterial species can contain several evolutionarily distinct populations, each adapted to different conditions inside the gut. Some of these populations were associated with advanced age, chronic inflammatory bowel diseases, colorectal cancer and type 2 diabetes.
The findings, published in Nature , could help scientists identify more precise microbiome biomarkers and may eventually support treatments aimed at specific bacterial populations rather than entire species.
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