Mangaluru: Muslim students protest against Srinivas College for 'hijab ban'

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, Mar 31: With many departmental stores, shops and establishments insisting on people to wear masks, Karnataka government on Tuesday clarified that as a rule every one need not wear a mask.

The Commissionerate of Health and Family Welfare Services in an advisory said a person is suppose to wear mask only when he or she has symptoms of cold or cough or fever or any other respiratory problem.

It said a person who is caring for COVID-19 suspect or confirmed patient should wear mask. Also, a health worker who is attending to a patient with respiratory symptoms should wear a mask.

The advisory also noted that those treating or handling COVID-19 suspects or patients need to wear N95 mask, while others can wear triple layer surgical mask.

The advisory from the Commissionerate has come amid shops and establishments, also police on road insisting people to wear masks when they venture out.

Feb 26: The Tamil Nadu government on Tuesday claimed that it prevented Karnataka from discussing the contentious Mekedatu reservoir issue at the Cauvery Water Management Authority (CWMA) meeting held in New Delhi.

Besides the representatives of Tamil Nadu and Karnataka at the fifth meeting of CWMA, presided over by Central Water Commission Chairman R K Jain, officials of Kerala and Puducherry also participated.

CWMA member and TN PWD Secretary K Manivasan told reporters after the meeting that the state government prevented Karnataka from discussing the dam issue by pointing out the pending petitions in the Supreme Court against the project filed by the E Palaniswami government.

"We have told participants of the meeting that Mekedatu reservoir will be against the interests of Tamil Nadu and its farmers. Our consistent stand is that it should not be built at any cost. Finally the issue was not discussed in the meeting," Manivasan said.

The Mekedatu reservoir is proposed to be constructed by Karnataka across Cauvery river near Mekedatu, about 110 km from Bengaluru, in Kanakapura taluk.

It was first proposed along with Shivanasamudra hydro power project at Shimsa in 2003 with an intention to use the water for a hydro power station and supply drinking water to Bengaluru city. It was designed to store 67 tmc feet of water.

While Tamil Nadu is claiming that the construction of a balancing reservoir will disturb Cauvery water flow to the state affecting irrigation, Karnataka says the project is basically designed to take care of the drinking water needs of Bengaluru after releasing water to Tamil Nadu as per the quantum specified by the Cauvery water disputes tribunal.