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Target intelligence / Profile preview
Gamma-aminobutyric acid A Receptor Modulator
- Molecular classification
- Receptor, Ion channel, Ligand-gated ion channel, Allosteric modulator
01
Overview
Gamma-aminobutyric acid A receptor modulators are compounds that modulate the activity of the GABA<sub>A</sub> receptor, a major inhibitory neurotransmitter receptor in the central nervous system. These modulators can be either positive allosteric modulators (PAMs), which enhance the effect of GABA, or negative allosteric modulators (NAMs), which inhibit it. The GABA<sub>A</sub> receptor is an ionotropic, ligand-gated chloride channel composed of various subunits. Allosteric modulators bind at sites distinct from where GABA binds, altering receptor function without directly activating or blocking it. PAMs are widely used therapeutically for their sedative-hypnotic and anxiolytic properties, while NAMs may have cognitive-enhancing or antidepressant properties in selective cases. Dysfunctional modulation can contribute to neurological diseases such as epilepsy.
- Other names
- Gamma-Aminobutyric Acid Type A Receptor ModulatorGABAA Receptor Positive Allosteric ModulatorGABAA Receptor Negative Allosteric ModulatorGABAkine
02
Mechanism of action
Allosteric modulation of GABA<sub>A</sub> receptor activity; enhancement or inhibition of GABA-induced chloride ion influx.
03
Biological functions
Inhibitory neurotransmissionNeuronal hyperpolarizationRegulation of neuronal excitability
04
Disease associations
Anxiety disordersInsomniaEpilepsy/seizure disordersNeurological diseases (e.g., epilepsy)
05
Safety considerations
SedationToleranceDependenceWithdrawal symptomsCognitive impairmentRespiratory depressionConvulsions (with NAMs)Anxiety (with NAMs)
06
Interacting drugs
Benzodiazepines (diazepam)
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