Industrialist BM Farooq likely to get Rajya Sabha ticket from JD(S)

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.

New Delhi, Jun 6: With the coronavirus pandemic showing no signs of abating, it seems unlikely that Muslims from India will be able to undertake the Hajj pilgrimage this year.

However, the government will take a final decision on the matter only after Saudi Arabia makes its position on hosting the pilgrimage clear.

A circular issued by the Hajj Committee of India on Friday said only a few weeks are left for the preparatory work in India for Hajj 2020, yet the Saudi authorities have not communicated any further development regarding the pilgrimage.

"In view of the several inquiries received and concerns expressed over uncertainty over Hajj 2020, it has been decided by the Hajj Committee of India that, those pilgrims who desire to cancel their Hajj journey this year, their 100 per cent amount paid so far will be refunded without any deductions," the circular issued by Hajj Committee of India CEO Maqsood Ahmed Khan said.

"Coronavirus cases are increasing in Saudi Arabia and two lakh people have to go from here. We had made preparations, but now there is very little time left. We are waiting for an official word from Saudi Arabia," a top source said.

In response to a question, the source said, "This time, it is unlikely that people will be able to undertake Hajj from India."

Uncertainty has been looming large over this year's Hajj in the wake of the coronavirus pandemic and though Saudi Arabia has not made a decision on whether the annual pilgrimage will be held or not, it did ask Muslims to delay their bookings till there is more clarity.

The bilateral annual Hajj 2020 agreement between India and Saudi Arabia was signed last December. In 2020, a total of 2 lakh Indian Muslims were expected to perform Hajj.

Over 95,000 COVID-19 cases and more than 600 deaths have been reported in Saudi Arabia due to the coronavirus pandemic, according to Johns Hopkins University data.

Some countries have decided not to send their people for Hajj this time. The most prominent among these is Indonesia, the country with the largest Muslim population in the world.

The Hajj 2020 is proposed in the period between late July and early August.

The Hajj is one of the five pillars of Islam which every Muslim is required to complete at least once in their lifetime if they are healthy enough and have the means to do so.