Literature DB >> 11435915

Temporomandibular-evoked jaw muscle reflex: role of brain stem NMDA and non-NMDA receptors.

B E Cairns1, B J Sessle, J W Hu.   

Abstract

This study investigated the possible involvement of brain stem excitatory amino acid receptor mechanisms and the trigeminal subnucleus caudalis (Vc) in temporomandibular joint (TMJ)-evoked reflex jaw muscle activity. Glutamate injected into the TMJ of anesthetized rats reflexly evoked activity in the jaw muscles. Application of lidocaine, but not saline, to the surface of the caudal brainstem overlying Vc significantly suppressed TMJ-evoked jaw muscle activity, while application of NMDA or non-NMDA receptor antagonists also significantly attenuated jaw muscle activity. These results provide evidence that Vc is a critical relay in the TMJ-evoked reflex activation of the jaw muscles, and that both NMDA and non-NMDA receptor mechanisms may contribute to these effects.

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Year:  2001        PMID： 11435915     DOI： 10.1097/00001756-200107030-00022

Source DB:  PubMed          Journal:  Neuroreport        ISSN： 0959-4965            Impact factor:   1.837


  13 in total

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9.  NMDA and purinergic processes modulate neck muscle activity evoked by noxious stimulation of dura.

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10.  Dura-evoked neck muscle activity involves purinergic and N-methyl-D-aspartate receptor mechanisms.

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Journal:  Neuroreport       Date:  2015-12-16       Impact factor: 1.837
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