Insomnia medication could treat acting-out-dream behaviour with fewer side effects
PTI, May 29, 2023, 11:50 AM IST
Representative image (Source: Pexels)
Researchers have found sleep medications commonly used to treat insomnia, or difficulty falling and remaining asleep, to significantly reduce rapid eye movement (REM) sleep behaviour disorder.
The study findings suggested that these medications, known as dual orexin receptor antagonists, could also potentially cause fewer side effects.
REM sleep behaviour disorder is a condition, mostly affecting adults aged over 50, in which one often unknowingly physically acts out their dreams with vocal sounds or sudden, violent arm and leg movements during slumber, leading to significant injury to themselves or bed partners.
Outlining a model to better describe how REM sleep behaviour disorder develops due to neurodegeneration associated with tau protein accumulation, Mount Sinai researchers in the US in this study have provided an early-life biomarker of impending neurodegeneration.
This, they say, could guide future prevention and treatment.
Their study is published in the Journal of Neuroscience.
“We identify a novel model in which REM sleep behaviour disorder can develop, due to neurodegeneration associated with accumulation of tau protein, and a novel therapy that could minimize REM sleep behaviour disorder,” said corresponding author Andrew W. Varga, associate professor of Medicine (Pulmonary, Critical Care and Sleep Medicine) at the Icahn School of Medicine at Mount Sinai.
In a mouse model, the researchers examined the brain for neurodegenerative disorders following abnormal deposits of tau, a protein that normally helps stabilise the internal skeleton of nerve cells in the brain.
They analyzed behavioral states including wakefulness, phases of REM (sleep with dreams), phases of non-REM (sleep without dreams), length of sleep, transitions from waking to sleep, and how some factors are related to age.
The researchers found nearly a third of the older subjects exhibited dream enactment behaviours reminiscent of REM sleep behaviour disorder, including chewing and limb extension.
Administering a dual orexin receptor antagonist twice during a 24-hour period was found to not only reduce the time it took to fall asleep and increase both the quality and duration of sleep, but also reduce levels of dream enactment.
The medication was administered twice to evaluate sleep in light and dark phases.
“We anticipated finding breakdown of sleep quality with progressive neurodegeneration related to tau accumulation, but the observation of dream enactment was a surprise,” said lead author Korey Kam, assistant professor of Medicine (Pulmonary, Critical Care and Sleep Medicine) at Icahn Mount Sinai.
“It was even more surprising and exciting to observe that a dual orexin receptor antagonist could significantly minimize the dream enactment behaviours,” said Kam.
Udayavani is now on Telegram. Click here to join our channel and stay updated with the latest news.
Top News
Related Articles More
Include 4 hrs of physical activity, 8 hrs sleep in routine for optimal health, suggests study
Traffic noise can increase risk of cardiovascular disease: Study
Nearsightedness is at epidemic levels – and the problem begins in childhood
Study finds genetic basis for link between depression, heart disease
World Malaria Day: WHO calls for equitable health access
MUST WATCH
Latest Additions
ICG apprehends Indian fishing boat with 173 kg of narcotics; two crew members detained
Ahead of phase 3 polls, Congress and BJP spar in MP over quotas, Muslim appeasement
Ramanagara: Five students swept away by currents in Cauvery river
Prajwal Revanna suspended from JD(S), says Kumaraswamy
JD(S) MLA demands expulsion of Revanna, son; says charges against them embarrassing