Ram Mandir | VHP to take out rally in Mangaluru on Nov 25, in Udupi on Dec 2

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, Jul 1: The Bajpe police station under the limits of Mangaluru City Police Commissionerate has been sealed down after an arrested accused was tested positive for the Coronavirus.

Police said on Wednesday that the Bajpe police arrested two persons in connection with plotting dacoity in Oddidakala in Bajpe. After the arrest, their throat swab was sent for a test. On Wednesday, one of the accused tested positive for the Coronavirus.

In this connection, the Bajpe police station has been sealed down and the police personnel who were present during the arrest are placed under home quarantine.

Mangaluru, May 17: Former health minister U T Khader demanded that the authorities carry out a scientific analysis of the five deaths that occurred due to Covid-19 in Dakshina Kannada. 

“The number of fatalities vis-à-vis the number of positive cases in the district is worrying, and the district administration and health department should not take the matter lightly. Lapses, if any, in dealing with the co-morbidity factors should be addressed, lest it become a major health challenge,” he warned.

Addressing reporters on Saturday, Khader, said only carrying out such types of analysis will help the health department combat the spread of the novel coronavirus in the future. “At present, the only data available with the health authorities here and in the state war room, is the number of people tested and number of positive cases,” Khader said.

“Any strategy to combat Covid-19 must be built around scientific analysis of causes of how the disease is spreading and to do so, concrete efforts must be made to find the source of the cluster at the First Neuro Hospital in Padil. A analysis of reasons that caused the deaths, will also come in handy for the authorities to prepare suitable advisories for the people, who in turn could take informed decisions,” Khader noted.