Protein Information

Name GABA at
Synonyms (S) 3 amino 2 methylpropionate transaminase; 4 aminobutyrate aminotransferase; ABAT; ABAT protein; GABA aminotransferase; GABA transaminase; GABA AT; GABA T…

Compound Information

Name 4-aminopyridine
CAS 4-pyridinamine

Reference List

PubMed Abstract RScore(About this table)
11113304 Pena F, Tapia R: Seizures and neurodegeneration induced by 4-aminopyridine in rat hippocampus in vivo: role of glutamate- and GABA-mediated neurotransmission and of ion channels. Neuroscience. 2000;101(3):547-61.

None of the drugs facilitating GABA-mediated transmission, including uptake blockers, GABA-transaminase inhibitors and agonists of the A-type receptor, was able to reduce the glutamate release, seizures or neuronal damage produced by 4-aminopyridine.
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19955357 Markwardt SJ, Wadiche JI, Overstreet-Wadiche LS: Input-specific GABAergic signaling to newborn neurons in adult dentate gyrus. J Neurosci. 2009 Dec 2;29(48):15063-72.


Rather, our results suggest that slow synaptic responses in newborn GCs are generated by dedicated inputs that produce a relatively low concentration of GABA at postsynaptic receptors, similar to slow IPSCs in mature GCs.
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15939088 DeFazio RA, Hablitz JJ: Horizontal spread of activity in neocortical inhibitory networks. Brain Res Dev Brain Res. 2005 Jun 9;157(1):83-92. Epub 2005 Apr 19.

In the presence of 4-aminopyridine (4-AP) and excitatory amino acid receptor blockers, GABAergic networks in the neocortex give rise to large spontaneous GABA-mediated depolarizations.
Taken together, these data support a role for both direct synaptic action of GABA at GABA (A) receptors and nonsynaptic mechanisms in the generation and propagation of depolarizing GABA responses.
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