Scientists now believe
that many diseases and conditions, are triggered or exacerbated by changes in
gut bacteria. A decade ago, Washington
University discovered that adding gut microbes from obese mice to thin mice
caused huge gains in weight, a finding which has been replicated many times. “Being able to cast light on this microbial
'Dark matter' has implications for the whole of biology and how we consider
health.” But the new research suggests
that those microbes can live outside of the body and be ingested, potentially
upsetting populations of healthy bacteria in the gut and triggering disease. Intriguingly it could explain why some
illnesses run in families. Far from being simply genetic, family members could
be picking up conditions through close contact or sharing bathrooms. Spores are a form of bacterial hibernation
which allow species to remain dormant for long periods of time. It is the first
time that scientists have considered that transmission of disease might be
possible through gut bacteria…Dr Trevor Lawley, who led the new study at the Wellcome
Trust Sanger Institute, said the conditions like obesity and Inflammatory
Bowel Disease, which includes Crohn’s Disease and Colitis, could be passed on. “I think there are definitely disease that
are caused by an imbalance in microbiotia. If you look at something like
Inflammatory Bowel Disease. Or obesity, that’s a possibility.
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