A study finds that certain types of microbes in the gut can be an early warning for Alzheimer’s
of people with more advanced Alzheimer’s, for example, showed that their guts contained higher ratios of bacteria called Bacteroidetes, which are known primarily for their ability to fight off other pathogens, compared to a type called Firmicutes which are associated with obesity and diabetes.
The next step in confirming these findings is to take fecal samples containing bacteria from people with no amyloid or tau in their brains and transplant them in animals who do have these protein buildups, to see how much the microbiome can change the progression of disease.
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