Neurobiological Mechanisms In Major Depressive Disorder

Genes, psychological adversity in childhood, and recent or ongoing psychological stress may combine to cause major depression, write Dr. Sanjay Mathew and colleagues from Mount Sinai School of Medicine in New York in a review published in CMAJ.


"Major depressive disorder is thought to result from the complex interplay of multiple inherited factors and subsequent exposure to a wide range of environmental variables through life," write Dr. Mathew and coauthors.


The review provides a framework for this complex disease that requires a diverse approach in research, diagnosis and treatment. Current treatment options are limited by their delayed onset of action, lack of efficacy and adverse outcomes.


The authors conclude that "much needs to be explored in terms of how genes interact with other environmental variables to influence the risk of major depressive disorder."


About CMAJ


CMAJ is the leading health sciences journal in Canada. CMAJ is a general medical journal publishing original research and review articles, commentaries and editorials, practice updates, an arts and ideas section and health news. Published continuously since 1911, new issues are uploaded on cmaj.ca every second Monday at 4:30 p.m. EST/EDT. cmaj.ca contains the complete editorial contents of CMAJ, supplemented by a variety of interactive features and additional content.

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