Karnataka govt. paves the way for recruitment of JOC lecturers'

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, May 1: The Ministry of Home Affairs (MHA) on Friday issued an order under the Disaster Management Act, 2005 to further extend the lockdown for a further period of two weeks beyond May 4.

The current lockdown period is scheduled to end on May 3.

"After a comprehensive review and in view of the lockdown measures having led to significant gains, the COVID-19 situation in the country, Ministry of Home Affairs issued an order under the Disaster Management Act, 2005, today, to further extend the lockdown for a further period of two weeks beyond May 4, 2020," read the order of the Home Ministry.

In red zones and outside containment zones, certain activities including plying of cycle rickshaws and auto-rickshaws, taxis and cab aggregators, intra-district and inter-district plying of buses and barber shops, spas and salons will be prohibited in addition to those prohibited throughout India.

A limited number of activities will remain prohibited across the country, irrespective of the zone, including travel by air, rail, metro and inter-state movement by road, running of schools, colleges, and other educational and training/coaching institutions, the order said.

This came after Prime Minister Narendra Modi's meeting with chief ministers of several states last month where some of them suggested extension of lockdown.

Mangaluru, July 10: Dakshina Kannada, which has emerged as one of the hotspots of covid-19 in Karnataka, has recorded at least six novel coronavirus related deaths in past 24 hours. 

According to sources, four people lost their battle with the novel coronavirus in Wenlock, the designated covid hospital. 

A 35-year-old man from Hosabettu, who was tested positive for COVID-19 recently, died at the Wenlock COVID hospital in the morning.

A 58-year-old woman from Thokkottu, a 67-year-old man from Ullal and a 65-year-old man from Falnir also passed away in the same hospital. 

Two other covid patients passed away in private hospitals. 

With this, the total number of death of covid patients in the district rose to 36.