Kicking, yelling in sleep can increase the risk of neurological diseases later

Agencies
December 29, 2018

Washington, Dec 29: Kicking and yelling during sleep? You may want to know the risk factors of a violent sleep disorder.

According to a recent study, taking antidepressants for depression, having post-traumatic stress disorder or anxiety diagnosed by a doctor are risk factors for a disruptive and sometimes violent sleep disorder called rapid eye movement (REM) sleep behavior disorder.

The study was published in the journal of ‘Neurology’, the medical journal of the American Academy of Neurology. The study also found that men are more likely to have the disorder.

REM sleep is the dream state of sleep. During normal REM sleep, your brain sends signals to prevent your muscles from moving. However, for people with REM sleep behavior disorder, those signals are disrupted. A person may act out violent or action-filled dreams by yelling, flailing their arms, punching or kicking, to the point of harming themselves or a person sleeping next to them.

"While much is still unknown about REM sleep behavior disorder, it can be caused by medications or it may be an early sign of another neurologic condition like Parkinson's disease, dementia with Lewy bodies or multiple system atrophy. Identifying lifestyle and personal risk factors linked to this sleep disorder may lead to finding ways to reduce the chances of developing it,” said study author Ronald Postuma.

The study looked at 30,097 people with an average age of 63. Researchers screened participants for a variety of health conditions and asked them about lifestyle, behaviour, social, economic and psychological factors.

In addition, every participant was asked, "Have you ever been told, or suspected yourself, that you seem to act out your dreams while asleep?"

Researchers then identified 958 people, or 3.2 percent, with possible REM sleep behavior disorder, after excluding participants with Parkinson's disease, dementia, Alzheimer's disease or sleep apnea.

Researchers found those with the disorder were over two-and-a-half times as likely to report taking antidepressants to treat depression, with 13 percent of those with the disorder taking them compared to 6 percent of those without the disorder. People with the disorder were also two-and-a-half times as likely to have post-traumatic stress disorder. They were twice as likely to have mental illness, and over one-and-a-half times as likely to have psychological distress.

Other findings were that men were twice as likely as women to have possible REM sleep behaviour disorder, 59 percent of those with the disorder were male, compared to 42 percent of those without the disorder.

People with possible REM sleep behaviour disorder were 25 percent more likely than those without the disorder to be moderate to heavy drinkers, with 19 percent of those with the disorder moderate to heavy drinkers compared to 14 percent of those without the disorder. They had slightly less education, an average of 13.2 years of education compared to an average of 13.6 years for those without the disorder. They also had lower income and were more likely to have smoked.

"Our research does not show that these risk factors cause REM sleep behavior disorder, it only shows they are linked. Our hope is that our findings will help guide future research, especially because REM sleep behavior disorder is such a strong sign of future neurodegenerative disease. The more we understand about REM sleep behavior disorder, the better positioned we will be to eventually prevent neurologic conditions like Parkinson's disease,” concluded Postuma.

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Agencies
January 5,2020

Washington D.C., Jan 5: After a woman filed a lawsuit against a diet soda company, the California court has declared that the beverage does not promise to help buyers in losing weight.

The woman had gulped down the drink for over a decade but did not lose inches as a result.

The three-judge panel declared during the hearing: "The prevalent understanding of the term in (the marketplace) is that the 'diet' version of a soft drink has fewer calories than its 'regular' counterpart."

However, the members of the US 9th circuit court have felt that the consumers tend to make out something of their own that is unreasonable and eventually hamper the reputation of brands through a deceptive allegation, reports Fox News.

The response was due to a misleading case filed against Diet Dr Pepper by Shana Becerra from Santa Rosa, California. Shana claimed that she has been addictively purchasing the low-calorie beverage for the past 13 years hoping for losing some fat but failed to lose even a single inch.

The woman also stated that the attractive and fit models misled her into believing that drink will help her in perfecting her body like them.

However, the court's decision was that advertisements are for representational purposes only. "Cannot be reasonably understood to convey any specific meaning at all," as written by Judge Jay Bybee.

Shana had last week made such allegation against Diet coke as well where the court came to a similar verdict. She claimed that she had found various studies where it is evident that the artificial sweetener aspartame used in diet beverages actually boosts weight gain.

But the artificial sweetener is approved in by the concerned administrative department and thus is used in most American drinks.

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Agencies
March 15,2020

Should you let your babies "cry it out" or rush to their side? Researchers have found that leaving an infant to 'cry it out' from birth up to 18 months does not adversely affect their behaviour development or attachment.

The study, published in the Journal of Child Psychology and Psychiatry, found that an infant's development and attachment to their parents is not affected by being left to "cry it out" and can actually decrease the amount of crying and duration.

"Only two previous studies nearly 50 or 20 years ago had investigated whether letting babies 'cry it out' affects babies' development. Our study documents contemporary parenting in the UK and the different approaches to crying used," said the study's researcher Ayten Bilgin from the University of Warwick in the UK.

For the study, the researchers followed 178 infants and their mums over 18 months and repeatedly assessed whether parents intervened immediately when a baby cried or let the baby let it cry out a few times or often.

They found that it made little difference to the baby’s development by 18 months.

The use of parent’s leaving their baby to ‘cry it out’ was assessed via maternal report at term, 3, 6 and 18 months and cry duration at term, 3 and 18 months.

Duration and frequency of fussing and crying was assessed at the same ages with the Crying Pattern Questionnaire.

According to the researchers, how sensitive the mother is in interaction with their baby was video-recorded and rated at 3 and 18 months of age.

Attachment was assessed at 18 months using a gold standard experimental procedure, the strange situation test, which assesses how securely an infant is attached to the major caregiver during separation and reunion episodes.

Behavioural development was assessed by direct observation in play with the mother and during assessment by a psychologist and a parent-report questionnaire at 18 months.

Researchers found that whether contemporary parents respond immediately or leave their infant to cry it out a few times to often makes no difference on the short - or longer term relationship with the mother or the infants behaviour.

This study shows that 2/3 of mum's parent intuitively and learn from their infant, meaning they intervene when they were just born immediately, but as they get older the mother waits a bit to see whether the baby can calm themselves, so babies learn self-regulation.

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Agencies
June 22,2020

A team of scientists has produced first open source all-atom models of full-length COVID-19 Spike protein that facilitates viral entry into host cells – a discovery that can facilitate a faster vaccine and antiviral drug development.

The group from Seoul National University in South Korea, University of Cambridge in the UK and Lehigh University in the US produced the first open-source all-atom models of a full-length S protein.

The researchers say this is of particular importance because the S protein plays a central role in viral entry into cells, making it a main target for vaccine and antiviral drug development.

"Our models are the first full-length SARS-CoV-2 spike (S) protein models that are available to other scientists," said Wonpil Im, a professor in Lehigh University.

"Our team spent days and nights to build these models very carefully from the known cryo-EM structure portions. Modeling was very challenging because there were many regions where simple modeling failed to provide high-quality models," he wrote in a paper published in The Journal of Physical Chemistry B.

Scientists can use the models to conduct innovative and novel simulation research for the prevention and treatment of Covid-19.

Though the coronavirus uses many different proteins to replicate and invade cells, the Spike protein is the major surface protein that it uses to bind to a receptor.

The total number of global COVID-19 cases was nearing 9 million, while the deaths have increased to over 467,000, according to the Johns Hopkins University.

With 2,279,306 cases and 119,967 deaths, the US continues with the world's highest number of COVID-19 infections and fatalities, according to the CSSE.

Brazil comes in the second place with 1,083,341 infections and 50,591 deaths.

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