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16/03 12:33
NEW YORK (Reuters Health) – According to a new study, Alzheimer's disease can be cured by combining light therapy and sound
The study showed that non-intervention therapies improved memory by destroying unwanted proteins in the rat brain.
The molecules known as beta-amyloid accumulate in plaques that "devour" neurons, resulting in devastating symptoms.
Scientists hope that this approach, which works by stimulating brain waves known as gamma oscillations, is effective in humans.
Patients with Alzheimer's disease are already enrolled in the early stages of their first clinical trial.
Experiments have shown that this method has improved the ability of genetically modified laboratory animals to develop mental problems similar to those seen in people with dementia.
Visual and auditory treatments led to improvements when applied uniquely, but the results were better when exposed to sound and light.
"When we combine stimulating visual and auditory stimulation for a week, we observe the prefrontal cortex and a very significant reduction in amyloid," said Dr. Li Hui Tsai, lead author of the Baikor Institute of Medicine. 39, learning and memory of the Massachusetts Institute of Technology.
Scientists have done preliminary tests on this type of stimulation in healthy people, whose results have been shown to be safe. The next step in clinical trials is to determine if the technique provides similar benefits for patients.
Alzheimer's disease disrupts brain waves, but exposing mice to optical and acoustic treatments encourages neurons to start functioning normally.
Through phototherapy, cells generate electrical signals in several different frequency bands, especially gamma frequencies. Previous studies have suggested that patients with Alzheimer's disease have abnormalities in their oscillations.
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