Exposing mice to an hour of 40-hertz stimuli every day for a week reduced levels of amyloid-β plaques and tau protein, and improved cognition.

The agency warns that plasma treatments costing thousands of dollars, which supposedly treat the infirmities of old age, have not been proven “safe or effective.”

The protein expression data, which are freely available online, could help identify new drug targets for the disease.

An enzyme of the bacteria Porphyromonas gingivalis has been found in the brains of patients with the disorder, and causes neurodegeneration in mice.

The observation could pave the way for a blood test to predict disease progression in people with a genetic predisposition to developing the neurodegenerative disorder.

A hormone treatment contaminated with amyloid-β given to mice caused the protein’s accumulation in their brains, suggesting the same could have occurred in humans given the therapy.

A study explores how nuclear pore complexes are disrupted in Alzheimer’s disease.

Studies have demonstrated that magnetic and electrical currents can enhance memory in human subjects, but the technology is not yet ready for prime time.

One variant limited the brain’s ability to use glucose.