BJP to create 5,000 WhatsApp groups to reach out to voters

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.

Bengaluru, Feb 13: Karnataka Chief Minister BS Yediyurappa on Thursday said the government had initiated measures to implement the Sarojini Mahishi report as the 12-hour Karnataka bandh call by several pro-Kannada organisations under the banner of Karnataka Sanghatanegala Okkoota began on Thursday.

“Government always stood for Kannada and Kannadigas and initiated measures to implement the Sarojini Mahishi report,” Yediyurappa said. Meanwhile, in Bengaluru, Ola, Uber and auto services were affected even though buses were plying as usual. Security has also been beefed up in Bengaluru after stones were pelted at a Tirupati-Mangaluru bus in Farangipet, though no one was injured.

Bangalore University has postponed all postgraduate (PG) exams scheduled for today. A pro-Kannada activist, Praveen Shetty, was kept under house arrest and police have detained a few people, including those involved in Cauvery protests and other bandh cases.

The organisations are demanding the implementation of a report by former union minister Sarojini Mahishi that recommends a certain percentage of jobs to Kannadigas in public sector undertakings, private companies, and multinational companies. The report was submitted in 1984 but is yet to be implemented.

Bengaluru, Jun 24: Karnataka Chief Minister BS Yediyurappa was all praise for a sixth standard student from Kallianpur in Udupi district for joining the fight against COVID-19 by stitching Face Masks with one hand for SSLC students writing examination beginning from Thursday.

Mr Yediyurappa took to Twitter and wrote, “Proud of this young COVID warrior Sindhuri. Her smile as she stitches that mask inspires all of us to go beyond our limitation and strengthens us to fight this battle together. God bless you!”

Sindhuri, daughter of Sudhir and Renuka is currently studying in the sixth standard in Mount Rosary school and Bulbul in Scouts and Guides as well.