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Front Neuroendocrinol. 2012 Jan;33(1):116-25. doi: 10.1016/j.yfrne.2011.12.002. Epub 2011 Dec 27.

Cytokines and brain excitability.

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  • 1Hotchkiss Brain Institute, Alberta Children's Hospital Research Institute, Department of Physiology and Pharmacology, Faculty of Medicine, University of Calgary, Health Sciences Centre, 3330 Hospital Dr. NW, Calgary, Alberta, Canada T2N 4N1.

Abstract

Cytokines are molecules secreted by peripheral immune cells, microglia, astrocytes and neurons in the central nervous system. Peripheral or central inflammation is characterized by an upregulation of cytokines and their receptors in the brain. Emerging evidence indicates that pro-inflammatory cytokines modulate brain excitability. Findings from both the clinical literature and from in vivo and in vitro laboratory studies suggest that cytokines can increase seizure susceptibility and may be involved in epileptogenesis. Cellular mechanisms that underlie these effects include upregulation of excitatory glutamatergic transmission and downregulation of inhibitory GABAergic transmission.

Copyright © 2012 Elsevier Inc. All rights reserved.

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