Hartal across Kerala after RSS activist hacked to death

Washington D.C., May 8: The prime time for brain development in a child's life is the first year, where the infant spends most of the time asleep. It is the time when neural connections form and sensory memories are encoded.

However, when sleep is disrupted, as occurs more often among children with autism, brain development may be affected, too.

New research led by the University of Washington finds that sleep problems in a baby's first 12 months may not only precede an autism diagnosis but also may be associated with altered growth trajectory in a key part of the brain, the hippocampus.

The study, which was published in the American Journal of Psychiatry, researchers report that in a sample of more than 400 taken of 6- to 12-month-old infants, those who were later diagnosed with autism were more likely to have had difficulty falling asleep.

It also states that this sleep difficulty was associated with altered growth trajectories in the hippocampus.

"The hippocampus is critical for learning and memory, and changes in the size of the hippocampus have been associated with poor sleep in adults and older children.

As many as 80 per cent of the children with autism spectrum disorder have sleep problems," said Annette Estes, director of the UW Autism Center and senior author of the study.

"In our clinical experience, parents have a lot of concerns about their children's sleep, and in our work on early autism intervention, we observed that sleep problems were holding children and families back," added Estes, who is also a UW professor of speech and hearing sciences.

"It could be that altered sleep is part-and-parcel of autism for some children. One clue is that behavioural interventions to improve sleep don't work for all children with autism, even when their parents are doing everything just right. This suggests that there may be a biological component to sleep problems for some children with autism," said Estes.

To consider links among sleep, brain development, and autism, researchers at the IBIS Network looked at MRI scans of 432 infants, surveyed parents about sleep patterns, and measured cognitive functioning using a standardized assessment.

At the outset of the study, infants were classified according to their risk for developing autism: Those who were at higher risk of developing autism -- about two-thirds of the study sample -- had an older sibling who had already been diagnosed.

Infant siblings of children with autism have a 20 per cent chance of developing autism spectrum disorder -- a much higher risk than children in the general population.

In the current study, 127 of the 432 infants were identified as "low risk" at the time the MRI scans were taken because they had no family history of autism.

They later evaluated all the participants at 24 months of age to determine whether they had developed autism. Of the roughly 300 children originally considered "high familial risk," 71 were diagnosed with autism spectrum disorder at that age.

Problems with sleep were more common among the infants later diagnosed with an autism spectrum disorder, as were larger hippocampi. No other subcortical brain structures were affected, including the amygdala, which is responsible for certain emotions and aspects of memory, or the thalamus, a signal transmitter from the spinal cord to the cerebral cortex.

The authors note that while parents reported more sleep difficulties among infants who developed autism compared to those who did not, the differences were very subtle and only observed when looking at group averages across hundreds of infants.

Sleep patterns in the first years of life change rapidly as infants transition from sleeping around the clock to a more adult-like sleep/wake cycle. Until further research is completed, Estes said, it is not possible to interpret challenges with sleep as an early sign of increased risk for autism.

Kalaburagi, Feb 24: Former Karnataka chief minister Siddaramaiah on Monday alleged that dissatisfaction and unhappiness are rising among the local Bharatiya Janata Party MLAs and the party might soon witness large scale defection.

Addressing the media, Mr. Siddaramaiah said many of the BJP MLAs have openly expressed their disappointment and unhappiness with the BJPs high command and also with Chief Minister B S Yeddyurappa's attitude towards them and they have said that they want to join the Congress at the earliest.

Bengaluru, Jul 15: As on Wednesday, Bengaluru witnessed its first day of lockdown after rising number of Corona cases in the city. In a latest development, popular Kannada actor Dhruva Sarja and his wife Prerana Sarja have tested positive for COVID-19 sending shockwaves in the indutry.

Dhruva Sarja is the nephew of Arjun Sarja and younger brother of Chiranjeevi Sarja who passed away last month after suffering a massive heart attack.

The actor has requested people, who came in contact with them, to get tested immediately.

"My wife and I have both been tested positive for COVID-19 with mild symptoms and hence chosen to get ourselves hospitalised. I'm sure we'll be back all fine! All those who were in close proximity with us please get yourselves tested and remain safe," he tweeted.

My wife and I have both been tested positive for COVID-19 with mild symptoms and hence chosen to get ourselves hospitalised. I’m sure we’ll be back all fine! All those who were in close proximity with us please get yourselves tested and remain safe.
ಜೈ ಆಂಜನೇಯ

— Dhruva Sarja (@DhruvaSarja) July 15, 2020

In recent times, Mandya MP and popular actress Sumalatha Ambereesh too tested positive, now Dhruva Sarja is the second notable celebrity from Sandalwood to have tested positive for COVID-19.

A source close to the actor's family says that "During Chiranjeevi's funeral last month, some sections of people who had attended had also tested positive, as social distancing rules were not followed by those who attended the funeral. But now, the family has quarantined and there is no cause for worry. Dhruva has also requested all his primary contact to come forward voluntarily and get tested."