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40Hz Light Pulses Stop Alzheimer’s May 10, 2019

Posted by stuffilikenet in Awesome, Brain, Geek Stuff, Science, Star Trek Technology.
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Neuroscientists at MIT have published a paper which demonstrates that 40Hz pulses of light can somehow inhibit the progress of neurodegeneration in mouse model. This study is designed to figure out how a flickering light could stifle cognitive decline, using two unique mouse models engineered to overproduced the toxic proteins that contribute to neurodegeneration. The animals were exposed to light flickering at 40 Hz for one hour every day for between three and six weeks. It worked a treat;  mice engineered to overproduce tau proteins (that usually cause neurodegeneration) displayed no neuronal degeneration after three weeks of treatment compared to a control group that displayed nearly 20 percent total neuronal loss. The other mouse model, engineered to produce a neurodegenerative protein called p25, displayed no neurodegeneration whatsoever during the entire six weeks of treatment.

At left is the brain of a mouse genetically programmed to develop Alzheimer’s disease. At right,...

The researchers then zoomed in on the light-treated animal’s neurons and microglia to study whether the treatment induced any unusual changes in gene expression. The light-treated mice revealed increased neuronal expression of genes associated with synaptic function and DNA repair. In microglia, the brain’s immune cells, there was a decrease in genes associated with inflammation.

Nobody understands how a 40 Hz flickering light can trigger these specific changes to gene expression deep in the brain, but human trials testing the sound and light treatment in Alzheimer’s patients have already begun.

Note: Adding a 40 Hz auditory tone to the process improved the efficacy of this treatment.  Your elderly parents can benefit from this by using gnuaural, an open-source generator of binaural beats for meditation and other psychological effects.

Homework: https://www.cell.com/neuron/fulltext/S0896-6273(19)30346-0

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