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Antioxidant drug knocks down multiple sclerosis-like disease in mice
Date:12/26/2013

mice also showed reduced loss of axons, or nerve fibers and reduced neurological disabilities associated with the EAE. The mice that had been pre-treated with the MitoQ showed the least problems. The mice that had been treated with MitoQ after EAE also showed many fewer problems than mice who were just induced to get the EAE and then given no treatment.

"The MitoQ also significantly reduced inflammation of the neurons and reduced demyelination," Reddy said. "These results are really exciting. This could be a new front in the fight against MS."

Even if the treatment continues to show promise, testing in humans would be years away. The next steps for Reddy's team will be to understand the mechanisms of MitoQ neuroprotection in different regions of the brain, and how MitoQ protects mitochondria within the brain cells of the EAE mice. Mitochondria, components within all human cells, convert energy into forms that are usable by the cell.

There is a built-in advantage with MitoQ. Unlike many new drugs, MitoQ has been tested for safety in numerous clinical trails with humans. Since its development in the late 1990s, researchers have tested MitoQ's ability to decrease oxidative damage in mitochondria.

"It appears that MitoQ enters neuronal mitochondria quickly, scavenges free radicals, reduces oxidative insults produced by elevated inflammation, and maintains or even boosts neuronal energy in affected cells," said Reddy. The hope has been that MitoQ might help treat neurodegenerative diseases like Alzheimer's and Parkinson's. Studies evaluating its helpfulness in treating those diseases are ongoing.


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Contact: Todd Murphy
murphyt@ohsu.edu
503-494-8231
Oregon Health & Science University
Source:Eurekalert  

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