Author: Niamh

Imbalance in gum bacteria linked to Alzheimer’s disease

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.

New drug to regenerate lost teeth

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 teeth sense the cold

David Clapham, vice president and chief scientific officer of the Howard Hughes Medical Institute (HHMI) in the United States and an international team of scientists have figured out how teeth sense the cold and pinpointed the molecular and cellular factors involved. In both mice and humans, tooth cells called odontoblasts contain cold-sensitive proteins that detect temperature drops, the team reports in the journal Science Advances.