Arecaidine hydrochloride, a pyridine alkaloid, is a potent GABA uptake inhibitor. Arecaidine hydrochloride is a substrate of H+-coupled amino acid transporter 1 (PAT1, SLC36A1) and competitively inhibits L-proline uptake[1][2].
DL-Borneol is a racemic mixture of D-Borneol and L-Borneol. DL-Borneol is widely used for the treatment of cardiovascular and cerebrovascular diseases in China.
3α,21-Dihydroxy-5α-pregnan-20-one (THDOC), an endogenous neurosteroid, is a positive modulator of GABAA receptors. 3α,21-Dihydroxy-5α-pregnan-20-one potentiates neuronal response to low concentrations of GABA at α4β1δ GABAA receptors in vitro.
Arecaidine, a pyridine alkaloid, is a potent GABA uptake inhibitor. Arecaidine is a substrate of H+-coupled amino acid transporter 1 (PAT1, SLC36A1) and competitively inhibits L-proline uptake[1][2].
Pagoclone is an active (+)-enantiomer of the racemate RP 59037. Pagoclone is a partial GABA(A) receptor agonist used for the treatment of panic and anxiety disorders.
Picrotoxin is a noncompetitive antagonist of GABAA receptor.
Tetrahydrodeoxycorticosterone, an neurosteroid, is a potent positive allosteric modulator (PAM) of GABAA receptor. Tetrahydrodeoxycorticosterone has potent neuroinhibitory properties[1][2].
Riluzole-13C,15N2 is the 13C and 15N labeled Riluzole[1]. Riluzole is an anticonvulsant drug and belongs to the family of use-dependent Na+ channel blocker which can also inhibit GABA uptake with an IC50 of 43 μM[2][3].
(S)-SNAP5114 is a selective GABA transport inhibitor, with IC50 values of 5 μM and 21 μM for hGAT-3 and rGAT-2, respectively. (S)-SNAP5114 is an anticonvulsant drug[1][2].
Acamprosate D3 calcium is the deuterium labeled Acamprosate calcium. Acamprosate calcium is a GABA receptor agonist and modulator of glutamatergic systems[1][2].
Gabazine is a selective and competitive antagonist of GABAA receptor, with an IC50 of ~0.2 μM for GABA receptor.
Basmisanil is a highly selective GABAAα5 negative allosteric modulator.
APS3 is a GABA and nACh receptors inhibitor, with a LC50 of 7.2423 μg/mL against Plutella xylostella[1].
Methionine (MRX-1024) is an effective chemoprotective agent which can also inhibit the neuronal activity through GABAA receptor activation.
Panadiplon (FG 10571; PNU 78875), a benzodiazepine receptor, is a 5GABAA partial agonist. Panadiplon exhibits selectivity for 5GABAA receptors versus 1GABAA receptors[1].
Phenylpiracetam(Phenotropyl; Phenotropil) is a phenylated derivative of the nootropic drug piracetam. It is used as a stimulant nootropic drug that can be up to 30-60 times more potent than piracetam.IC50 Value:Target: AMPA receptor allosteric modulatorin vitro: N/Ain vivo: In the open-field test, a significant increase in locomotor activity was observed after a single administration of R-phenotropil at doses of 10 and 50 mg/kg and S-phenotropil at a dose of 50 mg/kg. In the forced swim test, R-phenotropil induced an antidepressant effect at doses of 100 and 50 mg/kg, and S-phenotropil was active at a dose of 100 mg/kg. R-phenotropil significantly enhanced memory function in a passive avoidance response test at a dose of 1 mg/kg; the S-enantiomer did not show any activity in this test [1].
Etifoxine Hcl(HOE 36-801) is potentiator of GABAA receptor function in cultured neurons. Etifoxine preferentially acts on β2 or β3 subunit-containing GABAA receptors. IC50 value:Target: GABAA receptorEtifoxine exhibits anxiolytic activity in rodents and humans with no sedative, myorelaxant or mnesic side effects. Etifoxine acts as a ligand of the translocator protein (TSPO); promotes axonal regeneration.
Waglerin-1, a 22-amino acid peptide, is a competitive antagonist of the muscle nicotinic receptor (nAChR)[1].
Afloqualone is a agonist of GABA receptor .Target: GABA Receptorin vitro: Afloqualone is a quinazolinone family GABAergic drug.Afloqualone is an analogue of methaqualone. It has sedative and muscle-relaxant effects, resulting from its agonist activity at the β subtype of the GABAa receptor.in vivo: Afloqualone slightly increased the response during the alarm period in one out of 3 rats at 5, 10, and 20 mg/kg p.o., respectively.
Dihydroergotoxine mesylate is a complex of closely related alkaloid salts; Binds with high affinity to the GABAA receptor Cl- channel, producing an allosteric interaction with the benzodiazepine site.IC50 value:Target: Dihydroergotoxine mesylate also interacts with central dopaminergic, serotonergic and adrenergic (α1) receptors. Dihydroergotoxine mesylate displays antiproliferative activity in vitro (IC50 = 18 - 38 μM in prostate cancer cells) and exhibits cognition-enhancing, anticonvulsant and sedative activity in vivo.
CP-409092 hydrochloride is a partial agonist of GABAA receptor, with anti-anxiety activity[1].
Org20599 is a positive allosteric modulator and at higher concentrations direct agonist of GABAA receptor with an EC50 of 1.1 μM[1].
Xilmenolone is a GABAA receptor positive allosteric modulator[1].
Baclofen is a gamma-amino-butyric acid (GABA) derivative used as a skeletal muscle relaxant.Target: GABA ReceptorBaclofen, a lipophilic analog of gamma-aminobutyric acid, is clinically used to control spasticity. Baclofen pretreatment (3 mg/kg) not only prolonged the time taken for animals to reach a core body temperature of 40 degrees C (P < 0.001), but also reduced the percentage of rats attaining a core body temperature of 40 degrees C [1]. Baclofen overdose may result in coma, apnea, autonomic disturbances, cardiac conduction abnormalities, and seizures. Levels obtained shortly after overdose correlate with length of mechanical ventilation [2].
Pipequaline (PK 8165) is a non-selective GABAA receptor partial agonist with anxiolytic activity.
U93631 is a GABAA receptor ligand of novel chemical structure with IC50 of 100 nM,and has been shown to induce a rapid, time-dependent decay of GABA-induced whole-cell Cl-currents in recombinant GABAA receptors. target: GABAA receptorIC 50: GABAA receptor[1]In vitro: In the presence of U93631 at 5 UM, the peak amplitude decreased as a function of GABA concentration, with the half-maximal inhibitory concentration being approximately 100 nM, which is close to the Kd for the high affinity GABA site(85 nM). It appears that the drug interacts with GABA-bound receptors (at least monoliganded) and accelerates receptor desensitization,rather than acting as an open channel blocker. [1]
GABAA receptor agent 2 TFA is a potent and high-affinity GABAA receptor antagonist with an IC50 of 24 nM (human α1β2γ2 GABAA-expressing tsA201 cells) and a Ki of 28 nM (rat GABAA receptors). GABAA receptor agent 2 TFA is inactive against four human GABA transporters (hGAT-1, hBGT-1, hGAT-2, and hGAT-3)[1].
Flumazenil acid is a metabolite of Flumazenil[1]. Flumazenil is a GABAA receptor antagonist[2].
Propofol potently and directly activates GABAA receptor and inhibits glutamate receptor mediated excitatory synaptic transmission. Propofol has antinociceptive properties and is used for sedation and hypnotic[1].
GABAA receptor modulator-2 (Compound 20) is selective, orally active α5-GABAAR negative allosteric modulator (NAM) with a Ki of 4.1 nM. GABAA receptor modulator-2 shows high-metabolic stability and good CNS safety[1].