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Molecular Pathway Reconstruction And Analysis Of Disturbed Gene Expression In Depressed Individuals Who Died By Suicide, Vladimir Zhurov, John D. H. Stead, Zul Merali, Miklos Palkovits, Gabor Faludi, Caroline Schild-Poulter, Hymie Anisman, Michael O. Poulter

Brain and Mind Institute

Molecular mechanisms behind the etiology and pathophysiology of major depressive disorder and suicide remain largely unknown. Recent molecular studies of expression of serotonin, GABA and CRH receptors in various brain regions have demonstrated that molecular factors may contribute to the development of depressive disorder and suicide behaviour. Here, we used microarray analysis to examine the expression of genes in brain tissue (frontopolar cortex) of individuals who had been diagnosed with major depressive disorder and died by suicide, and those who had died suddenly without a history of depression. We analyzed the list of differentially expressed genes using pathway analysis, which …