New Delhi, Oct 8
A team of Australian researchers has decoded important genetic differences in how females and males experience depression for the first time, an advance that could pave the way for more targeted intervention and treatments.
In the study, published in Nature Communications, scientists found that genetic factors contribute more to depression risk in females than in males.
The team from QIMR Berghofer Medical Research Institute discovered about twice as many genetic "flags" for depression in the DNA of females as they did in that of males.
"We already know that females are twice as likely to suffer from depression in their lifetime than males," said Dr. Brittany Mitchell, Senior Researcher at QIMR Berghofer's Genetic Epidemiology Lab.
"And we also know that depression looks very different from one person to another. Until now, there hasn't been much consistent research to explain why depression affects females and males differently, including the possible role of genetics," Mitchell added.
The team identified about 7,000 changes in the DNA that could cause depression in both sexes, and about a further 6,000 DNA changes (a total of 13,000) that could cause depression in females only.
Researcher Dr. Jodi Thomas said the study also pinpointed how depression could show up differently for females and males.
The team found that the genetic factors linked to depression overlap more with those associated with metabolic traits in females.
"We found some genetic differences that may help explain why females with depression more often experience metabolic symptoms, such as weight changes or altered energy levels."
For the largest global study of its kind, the scientists analysed DNA from hundreds of thousands of people with and without depression, including around 130,000 females and 65,000 males with depression.
The changes in DNA that the scientists have identified are genetic differences people are born with, not changes that happen because of life experiences.
Traditionally, most drug trials and therapies are tested on males, but Drs Mitchell and Thomas hope their work will also translate to a greater clinical understanding of female depression.
"Unpacking the shared and unique genetic factors in males and females gives us a clearer picture of what causes depression -- and opens the door to more personalized treatments," Dr. Thomas said.
The findings highlight the importance of considering sex-specific genetic influences in studying depression and other health conditions.
— IANS
Reader Comments
Interesting findings but I'm concerned about the sample size - only 65,000 males compared to 130,000 females. Could this skew the results? Still, good to see research addressing gender differences in mental health.
The metabolic connection makes so much sense! Many women I know with depression struggle with weight changes and fatigue. In Indian households, these are often dismissed as "laziness" rather than medical symptoms. This research could really change how we approach women's health 💪
As someone working in healthcare in India, this study is groundbreaking. We desperately need more gender-specific research in mental health. Most medications are still tested primarily on men, which explains why treatments don't always work equally well for women.
While the genetic findings are important, we shouldn't overlook social factors. In India, women face unique pressures - career expectations, family responsibilities, safety concerns. These environmental factors interact with genetics in complex ways. Both matter!
Finally! Research that acknowledges women's mental health needs are different. Hope Indian medical colleges and hospitals take note. We need more awareness and specialized care for women's mental health issues. This could be life-changing for so many! 🌟
We welcome thoughtful discussions from our readers. Please keep comments respectful and on-topic.