HOME >> BIOLOGY >> NEWS
Sleep disorders linked to faulty brain chemistry, study finds

ANN ARBOR, Mich. The first tantalizing clues that chemical imbalances in the brain may be partly to blame for certain life-disrupting sleep disorders are being reported in two new studies by University of Michigan Health System researchers.

In two papers in the July 8 issue of the journal Neurology, the team reports apparent links between deficits in brain chemistry and obstructive sleep apnea (OSA) and REM sleep behavior disorder (RBD). Both are relatively common sleep problems that disturb the slumber -- and daytime behavior -- of millions of Americans.

The new findings were made using two types of neurochemical brain scans and detailed sleep studies in 13 patients with multiple system atrophy (MSA), a rare and fatal degenerative neurological disease almost always accompanied by severe sleep disorders. Their results from the MSA patients, who all had both sleep apnea and REM behavior disorder, were very different from those of 27 healthy control subjects.

Specifically, the researchers found that MSA patients had a far lower density of certain brain cells, or neurons, that produce the key chemicals dopamine and acetylcholine. The greater their lack, the worse their sleep problems were.

The patients with the fewest dopamine-producing neurons in the striatum of their brains had the worst RBD symptoms of thrashing, talking and violent flailing while they slept. And patients with the lowest levels of acetylcholine-producing neurons in the brainstem had the most interruptions in their breathing during sleep.

And while the researchers are careful to note that their findings to date can only show a correlation, not causation, between brain chemistry and sleep disorders, they plan further research to explore the relationship.

"It's exciting to be able to show this major neurochemical deficit for the first time, and confirm what others have suspected," says lead author Sid Gilman, M.D., F.R.C.P., the William J. Herdman Prof
'"/>

Contact: Kara Gavin
kegavin@umich.edu
734-764-2220
University of Michigan Health System
7-Jul-2003


Page: 1 2 3 4 5

Related biology news :

1. Sleepless over Seattle: Migrating songbirds forgo sleep but keep their wits
2. Sleep boosts ability to learn language, University of Chicago researchers find
3. Sleep deprivation within five hours of learning impairs memory consolidation in mice
4. Sleep debts accrue when nightly sleep totals six hours or fewer
5. Sleepless aged rats show biological clock problems
6. Sleep in early life may play crucial role in brain development
7. Sleeping dogs lend a paw to narcoleptics
8. Protein Misfolding, Not Mutant Gene, Key To Lethal Sleep Disorder
9. Scientists Identify New Gene That Controls Sleep/Wake Cycle
10. Hibernation: The Opposite of Sleep?
11. Brain serotonin enzyme finding might explain psychiatric disorders

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/16/2016)... , June 16, 2016 ... is expected to reach USD 1.83 billion by ... View Research, Inc. Technological proliferation and increasing demand ... are expected to drive the market growth. ... The development of advanced multimodal techniques ...
(Date:6/3/2016)... LONDON , June 3, 2016 /PRNewswire/ ... Transport Management) von Nepal ... ,Angebot und Lieferung hochsicherer geprägter Kennzeichen, einschließlich ... weltweit führend in der Produktion und Implementierung ... an der Ausschreibung im Januar teilgenommen, aber ...
(Date:5/24/2016)... patient care by providing unparalleled technology to leaders of the medical imaging industry.  As ... added to the range of products distributed by Ampronix. Photo - ... ... ... ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... NC (PRWEB) , ... June 23, 2016 , ... In ... University Hospital in Denmark detail how a patient who developed lymphedema after being treated ... tissue. The results could change the paradigm for dealing with this debilitating, frequent side ...
(Date:6/23/2016)... 2016  Blueprint Bio, a company dedicated to identifying, ... community, has closed its Series A funding round, according ... "We have received a commitment from Forentis Fund ... to meet our current goals," stated Matthew Nunez ... to complete validation on the current projects in our ...
(Date:6/23/2016)... NEW YORK , June 23, 2016 ... the trading session at 4,833.32, down 0.22%; the Dow Jones ... the S&P 500 closed at 2,085.45, down 0.17%. Stock-Callers.com has ... INFI ), Nektar Therapeutics (NASDAQ: NKTR ... BIND Therapeutics Inc. (NASDAQ: BIND ). Learn more ...
(Date:6/23/2016)... ... 23, 2016 , ... Regulatory Compliance Associates® Inc. (RCA), a ... webinar on Performing Quality Investigations: Getting to Root Cause. This ... charge. , Incomplete investigations are still a major concern to the Regulatory Authorities ...
Breaking Biology Technology:
Cached News: