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Sleep researchers at SRI International identify promising new treatment for narcolepsy
Date:5/7/2014

MENLO PARK, Calif.May 7, 2014Neuroscientists at SRI International have found that a form of baclofen, a drug used to treat muscle spasticity, works better at treating narcolepsy than the best drug currently available when tested in mice.

According to the National Institute of Neurological Disorders and Stroke (NINDS), narcolepsy, a chronic neurologic disorder characterized by excessive daytime sleepiness, is not a rare condition, but is under-recognized and under-diagnosed. It is estimated to impact 1 in 2,000 people worldwide.

In back-to-back papers published in the May 7 issue of The Journal of Neuroscience, Thomas Kilduff, Ph.D., who directs the Center for Neuroscience within SRI Biosciences, Sarah Wurts Black, Ph.D., a research scientist in the Center for Neuroscience, and colleagues present a mouse model of narcolepsy that mimics the human disorder better than other models currently in use. Kilduff, Black, and the SRI team then used the new narcolepsy model alongside a standard model to investigate a novel therapeutic pathway and to identify a promising way of treating narcolepsy.

"Our work is an example of how basic research can lead to a potential new therapy for a disease," said Kilduff. His team found that a form of baclofen, R-baclofen, works in both mouse models much better than the leading FDA-approved therapeutic for narcolepsy. (Baclofen, which has been available for more than 50 years, is a chemical compound that exists as a mixture of two isomers, designated R and S.) "The next step would be to perform a study in narcoleptic patients to determine its potential for treatment of human narcolepsy."

In humans, narcolepsy onset is typically during adolescence or later, but diagnosis may take more than a decade, making it difficult to study the progression of the disease. The lack of definitive mechanisms to explain what goes awry in the brain's ability to regulate sleep-wake cycles has consequently yielded d
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Contact: Dina Basin
dina.basin@sri.com
650-859-3845
SRI International
Source:Eurekalert

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