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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. [1]
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] There are three receptors of the gamma-aminobutyric acid. The ...
The gabapentinoid drugs do not bind significantly to other known drug receptors and so the α 2 δ VGCC subunit has been called the gabapentin receptor. [ 15 ] [ 4 ] Recently, the same α 2 δ-1 protein has been found closely associated not with VGCCs but with other proteins such as presynaptic NMDA-type glutamate receptors , cell adhesion ...
In pharmacology, GABA A receptor positive allosteric modulators, also known as GABAkines or GABA A receptor potentiators, [1] are positive allosteric modulator (PAM) molecules that increase the activity of the GABA A receptor protein in the vertebrate central nervous system. GABA is a major inhibitory neurotransmitter in the central nervous system.
A GABA reuptake inhibitor (GRI) is a type of drug which acts as a reuptake inhibitor for the neurotransmitter gamma-Aminobutyric acid (GABA) by blocking the action of the gamma-Aminobutyric acid transporters (GATs). This in turn leads to increased extracellular concentrations of GABA and therefore an increase in GABAergic neurotransmission. [1]
A GABA analogue is a compound which is an analogue or derivative of the neurotransmitter gamma-Aminobutyric acid (GABA) (the IUPAC of which is 4-aminobutanoic acid). Many GABA analogues are used as drugs , especially as anticonvulsants , sedatives , and anxiolytics .
[1] [2] The effects of GABA A receptor NAMs are functionally the opposite of those of GABA A receptor positive allosteric modulators (PAMs) like the benzodiazepines, barbiturates, and ethanol . [1] [2] Non-selective GABA A receptor NAMs can produce a variety of effects including convulsions, neurotoxicity, and anxiety, among others. [1] [2]
In general these drugs produce stimulant and convulsant effects, and are mainly used for counteracting overdoses of sedative drugs. Examples include bicuculline, securinine and metrazol, and the benzodiazepine GABA A receptor antagonist flumazenil. Other agents which may have GABA A receptor antagonism include the antibiotic ciprofloxacin, [1 ...