Older adults with more harmful than healthy bacteria in their gums are more likely to have evidence for amyloid beta – a key biomarker for Alzheimer’s disease – in their cerebrospinal fluid (CSF), according to new research from the New York University College of Dentistry and Weill Cornell Medicine. However, this imbalance in oral bacteria was not associated with another Alzheimer’s biomarker called tau.

A new study by scientists at Kyoto University and the University of Fukui reports that an antibody for one gene – USAG-1 – can stimulate tooth growth in mice suffering from tooth agenesis, a congenital condition. The paper was published in Science Advances.

How do we add the right bacteria into the right place when the biogeography has gotten ‘out of whack’?

The human body is filled with friendly bacteria. However, some of these microorganisms, such as Veillonella parvula, may be too nice.