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Neuroscience

Non-addictive opiate-like compounds may help treat narcolepsy

Chronic morphine treatment in mice restored a narcolepsy-related deficit in the brain, decreasing symptoms 

by Cici Zhang
June 29, 2018 | APPEARED IN VOLUME 96, ISSUE 27

 

09627-scicon11-micro.jpg
Credit: Sci. Transl. Med.
The brain of a person who used heroin long-term (bottom) had more hypocretin-producing neurons than that of a control.

Narcolepsy is a neurological condition featuring sudden bouts of sleep and muscle weakening that disrupt patients’ everyday function. Current treatments have unpleasant side effects. People with narcolepsy lack a wakefulness peptide known as hypocretin in their brains, but no drugs exist to replace this missing compound. Now, a team led by Jerome Siegel at the University of California, Los Angeles, has demonstrated that 14 days of morphine treatment restores the number of hypocretin-producing neurons in mice with a condition mimicking narcolepsy, rousing the animals and reducing their muscle weakening (Sci. Transl. Med. 2018, DOI: 10.1126/scitranslmed.aao4953). The researchers say that rather than morphine, which is an opiate, nonaddictive opiate-like compounds may be used to treat narcolepsy one day, but more work is needed. The team pursued this line of research because earlier, they had found that brains from people who use heroin chronically had 54% more hypocretin neurons on average than the control group. That finding suggests there might be a link between the hypocretin system and opioid addiction, Siegel says.

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Comments
Greg Hostetler (July 2, 2018 10:39 AM)
Provigil, as far as I know, is the most effective treatment for narcolepsy, especially when considering cost, side effect profile, and therapeutic effect.
See also: http://healthysleep.med.harvard.edu/narcolepsy/treating-narcolepsy/medications

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