Feature | March 27, 2015

Australian study corroborates findings on role of focused ultrasound in reducing amyloid plaques in mice

focused ultrasound, Alzheimer's, mice, Queensland, treatment

March 27, 2015 — A pre-clinical study published this week in Science Translational Medicine suggests that focused ultrasound may hold a key to providing a non-invasive, non-pharmaceutical approach to treating Alzheimer’s disease.

Researchers from the Queensland Brain Institute in Australia demonstrated that combining the injection of microbubbles and applying ultrasound across the brain using a system from Philips Research reduced the number and volume of amyloid plaques in mice genetically altered to model Alzheimer’s disease. In addition, they found that treated mice had improved memory over untreated ones.

This important work conducted by Jurgen Götz and Gerhard Leinenga, neuroscience researchers who are experts in Alzheimer’s disease, corroborates studies done at Sunnybrook Research Institute under the leadership of focused ultrasound pioneer Kullervo Hynynen. Hynynen and his colleagues were the first to publish data suggesting the benefit of focused ultrasound and microbubbles to open the blood-brain barrier (BBB) and reduce the plaque burden in a different Alzheimer’s model. Similarly, Foundation-funded preclinical research at Columbia University by Elisa Konofagou, Ph.D., safely opened the BBB to treat neurogenerative conditions—including Alzheimer’s.

Foundation Chairman Neal F. Kassell, M.D., stated, “These two studies in separate laboratories using different models are the essential predicate for a clinical trial. Combining these data with a successful safety and efficacy study for opening the blood-brain barrier, which is beginning soon at Sunnybrook, could get us there.”

Although the research is still preliminary, having two validated approaches that use focused ultrasound to eliminate plaques is very promising. “This research makes a wonderful connection between the focused ultrasound community and the neuroscience community that studies Alzheimer’s disease at the most basic cellular level,” said the Foundation’s Chief Scientific Officer Jessica Foley, Ph.D.. “The attention that it is receiving will shed light on the important and immediate advances that are being made to treat a range of brain disorders.”

The Foundation is organizing a steering committee to support additional Alzheimer’s research from pre-clinical stages to clinical trials.

For more information: www.fusfoundation.org

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