4.7 Review

Evidence for GABAergic inhibitory deficits in major depressive disorder

Journal

NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
Volume 35, Issue 3, Pages 818-825

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neubiorev.2010.10.002

Keywords

Major depressive disorder; Cortical inhibition; GABA; Transcranial magnetic stimulation; Interneuron

Funding

  1. National Institutes of Health (NIH) [UL1 RR024982]
  2. National Alliance for Research on Schizophrenia and Depression (NARSAD)
  3. Canadian Institutes of Health Research (CIHR)
  4. Ontario Mental Health Foundation
  5. NATIONAL CENTER FOR RESEARCH RESOURCES [UL1RR024982] Funding Source: NIH RePORTER

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Converging evidence suggests that deficits in gamma-aminobutyric acid (GABA) functioning are implicated in the pathophysiology of major depressive disorder (MDD). This is highlighted by research investigating cortical inhibition (Cl), a process whereby GABAergic interneurons selectively attenuate pyramidal neurons. Transcranial magnetic stimulation (TMS) paradigms evaluate this marker of neuronal inhibitory activity in the cortex. This review will examine the neuroanatomic and neurophysiological evidence from neuroimaging, molecular, treatment, and TMS studies linking dysfunctional GABAergic neurotransmission to MDD. (C) 2010 Elsevier Ltd. All rights reserved.

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