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Gamma-aminobutyric acid, a GABA-B receptor agonist. A GABA receptor agonist is a drug that is an agonist for one or more of the GABA receptors, producing typically sedative effects, and may also cause other effects such as anxiolytic, anticonvulsant, and muscle relaxant effects. [1]
The GABA receptors are a class of receptors that respond to the neurotransmitter gamma-aminobutyric acid (GABA), the chief inhibitory compound in the mature vertebrate central nervous system. There are two classes of GABA receptors: GABA A and GABA B .
The ionotropic GABA A receptor protein complex is also the molecular target of the benzodiazepine class of tranquilizer drugs. Benzodiazepines do not bind to the same receptor site on the protein complex as does the endogenous ligand GABA (whose binding site is located between α- and β-subunits), but bind to distinct benzodiazepine binding sites situated at the interface between the α- and ...
GABA B Receptors are similar in structure to and in the same receptor family with metabotropic glutamate receptors. [10] There are two subunits of the receptor, GABA B1 and GABA B2, [11] and these appear to assemble as obligate heterodimers in neuronal membranes by linking up by their intracellular C termini. [10]
GABA A receptors in the periaqueductal gray are pro-nociceptive at supraspinal sites while GABA A that are found in the spinal cord are anti-hyperalgesic. Spinal α2 and α3 containing GABA A receptors are responsible for the anti-hyperalgesic action of intrathecal diazepam. This was shown when the anti-hyperalgesic action was reduced when ...
Gamma-aminobutyric acid, or GABA, is a neurotransmitter that aids in controlling anxiety, stress and fear — but more research needs to be done to see how effective GABA supplements are ...
GABA is the major inhibitory neurotransmitter in the mammalian brain where it acts at GABA-A receptors, which are ligand-gated chloride channels. Chloride conductance of these channels can be modulated by agents such as benzodiazepines that bind to the GABA-A receptor. At least 16 distinct subunits of GABA-A receptors have been identified. [6]
A GABAergic or GABAnergic agent is any chemical that modifies the effects of GABA in the body or brain. Some different classes of GABAergic drugs include agonists , antagonists , modulators, reuptake inhibitors and enzymes.