Qatar releases 23 Indian prisoners, PM Modi expresses deepest' gratitude

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, Jan 10: Education technology company Byju’s is learnt to have raised $200 million in a funding round from Tiger Global Management, which has valued the Bengaluru-based start-up at around $8 billion, making it the third-largest unicorn (start-up valued over $1 billion) in the country.

With this, the Byju Raveendran-founded company has seen over 50 per cent jump in its valuation in just around nine months. In March 2019, Byju’s was valued $5.4 billion, when it raised around $31 million from General Atlantic, and Chinese investment giant Tencent.

At the current valuation, Byju’s has now replaced home-grown cab-hailing major Ola as the third-largest unicorn, next only to Paytm and OYO, which are valued around $16 billion and $10 billion, respectively.

Byju’s confirmed the transaction through a press statement, though the company declined to share any specific details of the deal. Tiger Global could not be immediately reached for its comments.

“We are happy to partner with a strong investor like Tiger Global Management. They share our sense of purpose and this partnership will advance our long-term vision of creating an impact by changing the way students learn,” said Raveendran. “This partnership is both a validation of the impact created by us so far and a vote of confidence for our long-term vision.”

This is Tiger Global’s first investment in the edutech space in India after Vendantu, an online tutoring platform, where it, along with WestBridge Capital, led a $42-million round in August.

An early backer of India’s internet growth story, the New York-headquartered Tiger Global has been a prolific investor in the Indian start-up space. Its portfolio in the country ranges from consumer focused e-commerce companies that are vital for the growth of the sector, such as Flipkart, Delhivery, Grofers, Quikr and PolicyBazaar, to mention a few.

After tasting success with Flipkart, one of its earliest investments, where it had pumped in around $1 billion, the PE major is now doubling down its focus on the Indian start-up space, under its new investment head Scott Shleifer.

Shleifer, who set up international private equity practice for Tiger Global, is said to be as aggressive deal maker like his predecessor Lee Fixel, who left the investment firm in March. Since then, Tiger has also invested in a host of technology-focused companies in diverse sectors including Ninjacart, CRED, NoBroker and Facilio to mention a few.

“Byju’s has emerged as the leader in the Indian education-tech sector. They are pioneering technology shaping the future of learning for millions of school students in India,” Shleifer was quoted in the press statement issued by the edutech firm.

Newsroom, Jun 16: A 35-year-old Kannada lecturer died in a motorbike accident at Tumkuru in Karnataka.

The deceased is K N Swamy, who was a guest lecturer in Department of Kannada at Central University of Kerala located at Periya in Kasaragod district.

The accident occurred on Sunday afternoon when he was riding his motorbike.

Swamy was also a writer and poet in Kannada.