Slashdot reader rpavlicek
writes, "Research done by MIT late this year has shown that light signals can improve the brain's neuron gamma frequency which can reverse the effects of Alzheimer's disease (by removing brain plaque
). Beneficial effects were found in both intercranial and optical stimuli." The Los Angeles Times reports:
New research demonstrates that, in mice whose brains are under attack by Alzheimer's dementia, exposure to lights that flicker at a precise frequency can right the brain's faulty signaling and energize its immune cells to fight off the disease... In mice, these effects were limited to the visual cortex. In humans with Alzheimer's, that's not one of the brain regions that gets gummed up early or significantly by amyloid plaques. But the authors of the new research held out hope that the light therapy might induce gamma oscillations, or their immune-boosting effect, more broadly in human brains, or that some change in delivery of the light might extend its effects to brain regions, such as the hippocampus, that are profoundly affected by Alzheimer's.
A startup has already approached the FDA seeking clinical trials, and the L.A. Times adds that "Even if the new research does not yield a treatment for Alzheimer's, it is expected to deepen understanding of a key player in the disease -- the brain's dedicated immune system -- and point to ways it can be used to fight the disease."