In the US, a person develops Alzheimer’s disease every 67 seconds. By 2050, it is estimated that as many as 16 million Americans will have the disease. But researchers from the Queensland Brain Institute at the University of Queensland in Australia say they have made a “breakthrough” in treatment for the condition: a noninvasive ultrasound technology that can restore memory.

Share on Pinterest When used on the brains of Alzheimer’s mouse models, the team found the ultrasound technique successfully cleared beta-amyloid plaques in 75% of mice.

“The word ‘breakthrough’ is often misused, but in this case I think this really does fundamentally change our understanding of how to treat this disease, and I foresee a great future for this approach,” says study author Prof. Jürgen Götz, of the Clem Jones Centre for Ageing Dementia Research at the Queensland Brain Institute.

In their study, recently published in the journal Science Translational Medicine, Prof. Götz and his colleague Gerhard Leinenga – also of the Clem Jones Centre for Ageing Dementia Research – reveal how the new ultrasound approach removed beta-amyloid plaques from the brains of Alzheimer’s mouse models, restoring their memory.

Beta-amyloid is a protein fragment, or peptide, believed to be involved in the development of Alzheimer’s. As we age, fragments of beta-amyloid can clump together in the brain, forming plaques that accumulate in the spaces between nerve cells, called synapses.

Though it is unclear exactly how beta-amyloid plaques contribute to Alzheimer’s disease, studies have suggested they interfere with communication between nerve cells, making it difficult for them to survive. This can lead to cognitive decline and memory loss.

A number of studies have investigated the use of drugs to combat beta-amyloid build-up in the brain. In May 2014, for example, Medical News Today reported on a study revealing how a commonly prescribed antidepressant reduced beta-amyloid production in Alzheimer’s mouse models.

But no drugs are involved in the approach described by Leinenga and Prof. Götz, potentially offering a less expensive and noninvasive treatment option for patients with Alzheimer’s.