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. 2001 May 11;900(2):320-3.
doi: 10.1016/s0006-8993(01)02293-4.

Baclofen inhibition of dorsal root-evoked inhibitory postsynaptic currents in substantia gelatinosa neurons of rat spinal cord slice

K Yang  1 , Y Feng, Y Li
Affiliations

Baclofen inhibition of dorsal root-evoked inhibitory postsynaptic currents in substantia gelatinosa neurons of rat spinal cord slice

K Yang et al. Brain Res. .

Abstract

We investigated the action of baclofen, an agonist for GABA(B) receptor, on the dorsal root-evoked inhibitory postsynaptic currents (IPSCs) in substantia gelatinosa (SG) neurons in the adult rat spinal cord slice. Most of the dorsal root-evoked IPSCs in SG were mediated by Adelta fibers. Baclofen (10 microM) reduced the amplitude of Adelta fiber-evoked glycine receptor-mediated IPSCs to 20.9+/-3.0% (n=13), and GABA(A) receptor-mediated IPSCs to 18.6+/-3.4% (n=12) of the controls, respectively. The results further suggest modulatory role of GABA(B) receptor in spinal dorsal horn.

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