Brown adipose tissue is less active in boys with obesity compared to boys with normal BMI: Study

Brown adipose tissue is less active in boys with obesity compared to boys with normal BMI: Study
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A new study has found that brown adipose tissue (BAT) is less active in boys with obesity compared to boys with normal body mass index (BMI).

The study was published in the journal, ‘Diabetes’.

Senior author Katherine Morrison said that BAT, also known as brown fat, helps the body burn regular fat and is activated by cold, but her research team noticed reduced BAT activity in the boys with obesity in response to a cold stimulus.

ALSO READ: Adolescents consuming ultra-processed foods are at risk of obesity: Study

The researchers of McMaster’s Centre for Metabolism, Obesity, and Diabetes Research performed MRI scans to measure BAT activity in 26 boys between the ages of eight and 10.

They studied the BAT tissue in the neck before and after one hour of exposure to a cold suit set at a temperature of 18 degrees Celsius. The patient sample included 13 boys with a normal BMI and the same number again with obesity, in the first study of its kind in children.

“The promise of this study is that if we can better understand BAT and how to mimic or stimulate its effects, it might offer us new therapies to treat obesity,” said Morrison, a professor in the university’s Department of Pediatrics pediatrician at the McMaster Children’s Hospital.

“Beyond helping families improve their nutrition, physical activity, and sleep, we have few treatments to assist children and adolescents with obesity. There are new medications that reduce appetite used in some adolescents. Investigating BAT activity holds out the hope of developing a new class of drugs that increase the amount of energy you burn,” she added.

However, Morrison said that it is still unknown whether a lack of BAT activity causes obesity, or if the condition simply impairs brown fat’s ability to burn energy.

She said that newborn babies have large amounts of BAT, but it steadily decreases through childhood so that by adulthood it is mostly present only in the neck region. The reason for decreasing brown fat levels in children remains unknown.

Morrison said her team used MRI scans to measure BAT activity as it did not expose the boys to ionizing radiation, unlike CT or PET scans. This potential safety risk has impeded research in children until now.

This story has been published from a wire agency feed without modifications to the text.

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