Mangaluru: Budding cartoonist, food blogger Nikhil Pai commits suicide

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.

Bhopal, Mar 10: Senior Congress leader Digvijay Singh on Tuesday parried questions on the exact number of MLAs supporting the party in Madhya Pradesh amid a political crisis triggered by the resignation of Jyotiraditya Scindia and 14 MLAs loyal to him.

Repeating his allegation that the BJP was trying to destabilise the Congress-led government, Singh told reporters that the BJP had arranged three chartered planes for Bengaluru on Monday to fly out some MLAs loyal to Scindia.

"We want to know why Bengaluru is used every time to destabilise governments?" he questioned.

When asked about the number of MLAs supporting the Congress in the current political scenario, Singh only said, "Just wait".

He said an atmosphere of uneasiness has been prevailing in the BJP since the Kamal Nath government started cracking a whip on various mafias.

"We (the state government) are exposing Vyapam scam, e-tendering scam, Madhyam scam. In the honey-trap case, BJP men were found to be involved. This will be exposed," he said.

The political crisis in Madhya Pradesh precipitated with the resignation of Jyotiraditya Scindia over his apparent marginalisation in the state politics. Following Scindia's suit, 14 legislators loyal to him have sent their resignation letters via e-mail to Madhya Pradesh Raj Bhavan.

Scindia was subsequently expelled from the Congress by party president Sonia Gandhi.

Speculation that the Guna royal might join the BJP gained ground after he met Prime Minister Narendra Modi in Delhi this morning.

Bengaluru, Jan 5: Karnataka Minister for Large and Medium Industries Jagadish Shettar warned of strict action against officers who demand bribe from farmers while acquiring land.

Mr Shettar, who paid a surprise visit to defense, aerospace hi-tech industry layout in Haraluru, Devanahalli in Bengaluru Rural district, warned the officials who demand a bribe for sanctioning compensation funds.

He said, 'Lands have been acquired from farmers for the development of the industrial area. It's the duty of state government to provide compensation to these farmers. Complaints must be registered against officials who demand a bribe for functioning compensation funds.'