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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-4688

Zeilhofer, H U; Zeilhofer, U B (2008). Spinal dis-inhibition in inflammatory pain. Neuroscience letters, 437(3):170-174.

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Inflammatory diseases and neuropathic insults trigger signaling cascades, which frequently lead to intense and long-lasting pain syndromes in affected patients. Such pain syndromes are characterized not only by an increased sensitivity to painful stimuli (hyperalgesia), but also by a qualitative change in the sensory perception of other, tactile stimuli (allodynia) and the occurrence of spontaneous pain in the absence of any sensory input. Long-term potentiation (LTP)-like changes in synaptic transmission between nociceptive C-fibers and spino-periaqueductal grey projection neurons as well as a loss of inhibitory control by GABAergic and glycinergic spinal dorsal horn neurons have repeatedly been proposed as underlying principles. While considerable evidence supports a significant contribution of C-fiber LTP to hyperalgesia, such monosynaptic plasticity cannot explain the occurrence of allodynia and spontaneous pain. In this review, we focus on mechanisms of synaptic dis-inhibition in inflammatory pain and propose that pathologically heightened pain sensitivity can be reversed by restoring synaptic inhibition with drugs that target specific spinal GABAA receptor subtypes.




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Item Type:Journal Article, refereed, further contribution
Communities & Collections:04 Faculty of Medicine > Institute of Pharmacology and Toxicology
DDC:570 Life sciences; biology
610 Medicine & health
Date:6 June 2008
Deposited On:27 Oct 2008 10:45
Last Modified:21 Oct 2012 00:52
Publisher DOI:doi:10.1016/j.neulet.2008.03.056
PubMed ID:18406524

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