NeuroMolecular Medicine

, Volume 5, Issue 1, pp 11–25

Role of neurotrophic factors in the etiology and treatment of mood disorders


DOI: 10.1385/NMM:5:1:011

Cite this article as:
Duman, R.S. Neuromol Med (2004) 5: 11. doi:10.1385/NMM:5:1:011


Basic research in rodents has demonstrated that exposure to stress decreases levels of brain-derived neurotrophic factor (BDNF) in brain regions associated with depression. In contrast, antidepressant treatment produces the opposite effect and blocks the effects of stress on BDNF. BDNF upregulation and possibly other neurotrophic/growth factors could reverse or block the atrophy and cell loss that has been observed in rodent stress models and in depressed patients. The morphological alterations observed in depressed patients could result from decreased size or number of glia and/or neurons and may include regulation of adult neurogenesis. This article reviews the primary work leading to a neurotrophic hypothesis of depression and antidepressant action and the cellular mechanisms and signal transduction pathways that underlie these effects.

Index Entries

Antidepressantstressneurogenesisserotoninnorepinephrinehippocampusbrain-derived neurotrophic factor

Copyright information

© Humana Press Inc 2004

Authors and Affiliations

  1. 1.Division of Molecular Psychiatry, Departments of Psychiatry and PharmacologyYale University School of MedicineNew Haven