State's first butterfly park opens in Belvai

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, Mar 29: Mosques across Karnataka are now turning into centers to create awareness against deadly coronavirus that cause Covid-19. 

The state government's board of auqaf has issued a notification to the administrations of all mosques to use their loud speakers to create awareness against the virus. 

All the mosques in the state have already suspended congregational prayers to prevent the spread of the virus.

As per the decision of the state board of auqaf, now all mosques have to play the audio clips that creates awareness against the virus in three languages. 

The clips will be played at 10 a.m., 4 p.m., 6 p.m. and 8 p.m. everyday.

Bengaluru, Feb 21: A young woman in Bengaluru was detained today for holding a placard saying ''Free Kashmir'' at a demonstration in the city to protest against the arrest of college student Amulya Leona who had raised pro-Pakistan slogans at an anti-CAA rally a day ago.

The arrested has been identified as Ardra Narayan, a 20-year-old student of an engineering college at Malleshwaram in the city's western suburb.

"Ardra Narayan is being questioned at the Silver Jubilee Park police station after she was whisked away from the spot and detained for holding the placard with ''Free Kashmir'' written on it," Bengaluru Police Commissioner Bhaskar Rao said.

On a complaint by Sri Ram Sena activists, who were protesting against Amulya at the venue, the police booked a suo moto case against Ardra under sections 153A and 153B of the IPC (Indian Penal Code) for disturbing peace and harmony.

The placard also displayed ''Give Us Liberation'' and ''Freedom from India'', a Sri Ram Sena activist alleged.

The development comes a day after Amulya, 19, was arrested under section 124A of the IPC for sedition and jailed for 14 days for allegedly shouting "Pakistan Zindabad" at the anti-Citizenship Amendment Act (CAA) rally at Freedom Park in the city centre on Thursday.

"We are trying to ascertain if there is any connection between Amuly and Ardra though she was alone at the spot holding the placard," Assistant Commissioner of Police (ACP) R. Chandrashekar told news agency.