Alzheimersymptomen in mice are decreased by treatment with light and sound

Medical Scientists have managed to mice with symptoms of Alzheimer's disease successfully treated with a unique combination of sound and light. The treatment has not yet been tested on humans, but it offers hope for the future. The study was published today in the scientific journal Cell.

Li-Huei Tsai, director of Picower Institute for Learning and Memory at the Massachusetts Institute of Technology, kortweg MIT, argued with her team the mice for an entire week, one hour per day exposed to sound waves – noise - with a frequency of 40 Hertz. At the same time, they had 40 flashes of light per second. A previous study with the flashes of light produced positive results, but the effects of the addition of the sound are amazing.

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stage Alzheimer's patients suffer a disturbance of the rhythm of the gammagolven in the brain. Brainwaves, including gammagolven, play a role in our concentration, sleep, perception and movements. the

The treatment with sound and light synchronized to the rhythm of the gammagolven. These waves, caused, in their turn, for an increased activation of microglia : cells that are responsible for the removal of foreign substances and dead tissue. The microglia were more efficient in the approach of amyloid plaques , a build-up of eiwitfragmenten that is characteristic of Alzheimer's disease.

Also, the presence of a variant of the tau protein, which is associated with the disorder, decreased by the treatment. In addition, it appeared that the blood vessels in the brain worked better at the sonic, making the harmful protein easier could be disposed of.

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