Mangaluru | Family’s presence of mind during covid victim’s last rites preserves communal harmony

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, Jul 1: Karnataka registered a record 1,272 Covid positive cases to breach the 16,000- mark to take the states tally to 16,514, while seven people succumbed to the dreaded virus, an official said on Wednesday.

"New cases reported from Tuesday 5 p.m. to Wednesday 5 p.m. 1,272," said a health official.

In the past 24 hours, seven people have succumbed to the virus, two each in Bengaluru Urban and Bidar and one each in Dakshina Kannada, Belagavi and Hassan, taking the state''s death toll to 253.

Of the record number of cases in the last 24 hours, Bengaluru Urban bore the brunt with 735 infections, taking the city''s tally rise to 5,290, out of which 4,649 are active cases.

Among the new cases, excluding Bengaluru, Ballari accounted for 85, followed by Dakshina Kannada (84), Dharwad (35), Bengaluru Rural (29), Vijayapura and Hassan (28 each), Uttara Kannada (23) and Udupi (22).

Chamarajanagar witnessed 21 cases, followed by Bagalkote (20), Tumkur (19), Davangere (16), Chikkaballapura (15), Kalaburagi and Ramanagara (14 each), Koppal (13), Raichur and Chitradurga (12 each), Yadgir, Bidar and Belagavi (8 each), Kodagu (7), Mandya and Kolar (5 each), Shivamogga (3), Gadag (2) and Chikkamagaluru (1).

Of the 1,272 new cases, 1,068 or 84 per cent are contacts of earlier cases while domestic returnees accounted for 42 cases or 3 per cent.

On Wednesday, 145 people got discharged from different hospitals, elevating the total number discharges to 8,063.

Of the 16,514 cases in Karnataka, 8,194 are active cases.

Bengaluru, Jun 8: Facing a shortage of labour, some top builders in the city have initiated efforts to bring back the migrant workers, who have returned to their native places following the COVID-19 lockdown, and are holding parleys with Railway authorities for operation of special trains to ferry them.

After the lockdown was announced, many construction projects came to a halt and accordingly the labourers were rendered jobless. These migrant workers preferred to go back to their home state as they were not paid when the projects were stopped and were caught in the big financial mess. Many of these migrants even chose to cover thousands of kilometres by foot when even trains, buses or any motor vehicles were not operating.

Keeping their woes in view, the Centre decided to run the Shramik Special trains to ferry them to their native places. But, after they were gone, the builders found themselves in a lurch. An executive of a builder told PTI "Yes, our builder and a few others are in talks with the Railways to run the special train to bring back the labourers." She said nothing has been materialised as of now.

According to her, the builders took the contact numbers of the workers when they left the city to their home states and are now contacting them one by one. The South Western Railway has so far sent 3.11 lakh migrant workers in 216 Shramik Special trains starting from May 3 to June 6.