Nimra Banu bags 1st rank in Nat'l level Maths exam

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.

Mangaluru, Jan 20: A suspicious unattended laptop bag with the suspicion of containing “something harmful” was found abandoned at the Mangaluru International Airport on Monday.

The bag was found kept in the rest area meant for the passengers outside the airport. According to reports, two men came in auto and left the bag near the ticket counter, which is near the VIP vehicles parking area.

The bag, which was lying unattended near the entrance of the airport was removed from the spot by the airport security personnel at 8.45 am.

Bomb detection squad personnel has rushed to the spot and shifted the bag to a safe zone, said Mangaluru Commissioner of Police P S Harsha.

Thiruvananthapuram, Mar 25: Kerala Chief Minister Pinarayi Vijayan on Tuesday said that strict action will be taken against overpricing and hoarding of essential items during lockdown period in the state.
Speaking to media persons here, he said: "Today 14 new cases of COVID-19 have been reported taking the total number of cases to 105 (excluding four discharged) in the state."
"Out of this, six are from Kasaragod district, two from Kozhikode, eight have returned from Dubai, one each from Qatar and UK; and three have got infected from a mutual contact. One health worker is also suspected to be on the list," he said.
A total of 72,460 people are under observation in the state out of which 71,994 are in isolation in their homes and 466 in hospitals. Today 164 people were hospitalised. 4,516 samples were sent for testing out of which 3,331 have tested negative.
Chief Minister Vijayan said that people should take the lockdown seriously and strictly adhere to government instructions.
"All personal vehicles should strictly be off the road. Taxis and autos can only be used for emergency purposes. People using personal vehicles should give self-declaration giving details about the purpose of the journey. Police action will be taken against those giving false information or found misusing personal vehicles," he said.
The Chief Minister today interacted with the MLAs from Kasargod through audio conferencing and asked them to co-ordinate the activities there along with the Panchayat president.
"Special attention should be given to the elderly, homeless, specially-abled in the state and local self-government institutions should take effort to arrange food and shelter for the needy. Apart from medicines, those in isolation would also be given counselling if required," he said.
He also urged the youth to come forward in volunteering during this difficult time. They can volunteer as bystanders in hospitals and help in other places too.
The Chief Minister also informed that the testing facilities at Central Universities in Kerala, IISER in Trivandrum and MIMS, Kozhikode can be used.
"All MLAs are working in their respective constituencies and they should make the effort to identify places that can be used as regional isolation centres, as and when required," said Vijayan.