Depression could result in changes to the structure of a key component of the brain, a study has warned. Alterations were found in parts of the brain known as white matter, which contains fibre tracts that enable brain cells to communicate with one another by electrical signals.
White matter is a key component of the brain’s wiring and its disruption has been linked to problems with emotion processing and thinking skills, researchers said. The study sheds light on the biology of depression and could help in the search for better diagnosis and treatment. Scientists at the University of Edinburgh in the UK used a cutting-edge technique known as diffusion tensor imaging to map the structure of white matter.
A quality of the matter - known as white matter integrity - was reduced in people who reported symptoms indicative of depression. The same changes were not seen in people who were unaffected. Depression is the world’s leading cause of disability. Symptoms include low mood, exhaustion and feelings of emptiness, researchers said.
“This study uses data from the largest single sample published to date and shows that people with depression have changes in the white matter wiring of their brain,” said Heather Whalley, a senior research fellow at the University of Edinburgh. “There is an urgent need to provide treatment for depression and an improved understanding of its mechanisms will give us a better chance of developing new and more effective methods of treatment.
{{/usCountry}}“This study uses data from the largest single sample published to date and shows that people with depression have changes in the white matter wiring of their brain,” said Heather Whalley, a senior research fellow at the University of Edinburgh. “There is an urgent need to provide treatment for depression and an improved understanding of its mechanisms will give us a better chance of developing new and more effective methods of treatment.
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