Study links oral health to Alzheimer's disease

07/31/2013 | Bloomberg

Researchers found signs of Porphyromonas gingivalis bacteria in 40% of brain tissue samples collected from patients with Alzheimer's disease, but there was no evidence of the bacteria in brain tissue of similar-age people without dementia. The study, published in the Journal of Alzheimer's Disease, supports the hypothesis that oral bacteria can travel through the bloodstream to other parts of the body. Further studies are needed to establish a causal link, the lead researcher said.

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