Medindia

X

Gene Known as 'SERT' That Transports Serotonin, Magnifies Impact of Trauma

by Bidita Debnath on  September 22, 2015 at 11:56 PM Research News   - G J E 4
Why some, but not all adults who have experienced sexual or physical abuse as children go on to develop long term depression? New research suggests that this could partly be due to their specific genetic make up.
 Gene Known as 'SERT' That Transports Serotonin, Magnifies Impact of Trauma
Gene Known as 'SERT' That Transports Serotonin, Magnifies Impact of Trauma
Advertisement

However, the researchers also found that the same gene variant that can make a person sad in one context, can trigger happiness in another context.

Advertisement
"Our results suggest some people have a genetic makeup that makes them more susceptible to negative environments, but if put in a supportive environment these same people are likely to thrive," said lead investigator Chad Bousman from the University of Melbourne in Australia.

The research focussed on a particular gene, known as SERT, that transports the mood-regulating chemical, serotonin.

Every person has one of three types of SERT gene, either the long-long (l/l), the short-long (s/l), or the short-short (s/s).

The team DNA-tested 333 middle-aged people. They recorded their depressive symptoms each year over a five-year period.

They found that those with the s/s genotype who had experienced sexual or physical abuse as a child were more likely to experience ongoing severe depressive symptoms in middle age.

But, conversely, those with this same genotype but no history of abuse were happier than the rest of the population.

Bousman said this is good news for people experiencing depression and their treating health professionals.

"You cannot change your genotype or go back and change your childhood, but you can take steps to modify your current environment," he said.

The research was published in the British Journal of Psychiatry Open.

Source: IANS
Advertisement

Post your Comments

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
User Avatar
* Your comment can be maximum of 2500 characters
Notify me when reply is posted I agree to the terms and conditions

You May Also Like

Advertisement
View All