Fipronil sulfone is the major metabolite of Fipronil.Fipronil sulfone selectively inhibits?GABA receptor?with?IC50 of 175 nM (assayed by displacement of 4′-ethynyl-4-n-[2,3-3H2]- propylbicycloorthobenzoate ([3H]EBOB) from the noncompetitive blocker site).
p-Hydroxybenzaldehyde is a one of the major components in Dendrocalamus asper bamboo shoots, with antagonistic effect on GABAA receptor of the α1β2γ2S subtype at high concentrations.
Bamaluzole is a GABA receptor agonist extracted from patent WO 2012064642 A1.
12,14-Dichlorodehydroabietic acid, a chlorinated resin acid, is a potent Ca2+-activated K+ (BK) channel opener. 12,14-Dichlorodehydroabietic acid blocks GABA-dependent chloride entry in mammalian brain and operates as a non-competitive GABAA antagonist. 12,14-Dichlorodehydroabietic acid increases cytosolic free Ca2+ and stimulates transmitter release[1][2].
AA29504 is a ethyl carbamate with γ-aminobutyric acid (GABAA(HY-L120) receptor activity. AA29504 inhibits the delivery of the neurotransmitter gamma-aminobutyric acid in the central nervous system. AA29504 can be used to research anxiety, insomnia and other neuropsychiatric diseases [1].
Songorine is a diterpenoid alkaloid isolated from the genus Aconitum. Songorine is a GABAA receptor antagonist in rat brain and has anti cancer, antiarrhythmic and anti-inflammatory activities. Songorine has the potential for the treatment of Epithelial ovarian cancer (EOC)[1].
NNC05-2090 (hydrochloride) is a GABA uptake inhibitor. NNC05-2090 is a betaine/GABA transporter (BGT-1) inhibitor with an IC50 value of 10.6 μM. NNC05-2090 can be used for the research of epilepsy and neurological disease[1][2].
Jujuboside A is a glycoside extracted from Semen Ziziphi Spinosae, a Chinese herbal medicine used to treat insomnia and anxiety.
Fipronil is an insecticide that acts as a selective antagonist of insect GABA receptors (IC50s = 30 nM and 1,600 nM for cockroach and rat receptors, respectively). Fipronil also inhibits desensitizing and non-desensitizing glutamate-induced chloride currents in cockroach neurons (IC500s = 800 nM and 10 nM, respectively). Fipronil induces activity of the cytochrome P450 (CYP) isoforms CYP1A1/2, CYP2B1/2, and CYP3A1/2 in isolated rat liver microsomes.
BPDBA is a selective and noncompetitive betaine/GABA transporter (BGT-1) inhibitor with IC50s of 20 μM and 35 μM against human BGT-1 and mouse GAT2, respectively[1].
Abecarnil (ZK 112119) is a ligand or a partial agonist for benzodiazepine (BZ) receptor. Abecarnil possesses anxiolytic and anticonvulsant properties. Abecarnil can act as a positive allosteric modulator of GABAA receptor. Abecarnil inhibits the binding of the BZ [3H]lormetazepam to rat cerebral cortex membranes, with an IC50 of 0.82 nM. Abecarnil can be used for epilepsy research[1][2][3][4].
MRK-016 is a selective, orally bioavailable inverse agonist of GABAA α5 receptor, with an EC50 of 3 nM for GABAA α5, and Kis of 0.83, 0.85, 0.77 and 1.4 nM for human GABAA α1β3γ2, GABAA α2β3γ2, GABAA α3β3γ2, and GABAA α5β3γ2, respectively; MRK-016 also readily penetrates the CNS.
Acamprosate calcium(Campral EC) is a GABA receptor agonist and modulator of glutamatergic systems; reduces alcohol consumption in animal models of alcohol addiction.IC50 value:Target: GABA receptorAcamprosate, or N-acetyl homotaurine, is an N-methyl-D-aspartate receptor modulator approved by the Food and Drug Administration (FDA) as a pharmacological treatment for alcohol dependence.Acamprosate has low bioavailability, but also has an excellent tolerability and safety profile. In comparison with naltrexone and disulfiram, which are the other FDA-approved treatments for alcohol dependence, acamprosate is unique in that it is not metabolized by the liver and is also not impacted by alcohol use, so can be administered to patients with hepatitis or liver disease (a common comorbid condition among individuals with alcohol dependence) and to patients who continue drinking alcohol.
NCS-382 (sodium) is a potent GABA receptor antagonist. NCS-382 (sodium) has anti-sedative and anti-hypnotic activities and can be used in research related to neurological diseases[1].
Loreclezole hydrochloride, an antiepileptic compound, is a selective GABAA receptor modulator and acts as a positive allosteric modulator of β2 or β3-subunit containing receptors[1][2].
E2730 is a noncompetitive but selective inhibitor of gamma-aminobutyric acid (GABA) transporter 1 (GAT1) with orally available and antiepileptic activity. E2730-mediated GAT1 inhibition is positively correlated with environmental GABA levels and selectively inhibits GAT1-mediated GABA uptake. E2730 (5-50 mg/kg; po) in rat amygdala ignition model, and in mouse cornea ignition (5-50 mg/kg), drug resistance 6Hz-44mA has demonstrated in vivo efficacy in models of psychomotor epilepsy (5-50 mg/kg), fragile X syndrome (2.5-300 mg/kg), and Dravet syndrome (10 mg/kg, 20 mg/kg)[1].
Vigabatrin Hcl(γ-Vinyl-GABA; Sabril) is a structural analog of the inhibitory neurotransmitter γ-aminobutyric acid (GABA) that irreversibly inhibits the catabolism of GABA by GABA transaminase.IC50 value:Target: GABA transaminaseClinical studies have shown that vigabatrin is superior to placebo in decreasing the frequency of infantile spasms. In tuberous sclerosis, vigabatrin may be considered the first-line treatment for IS. The mode of action is increasing concentrations of the inhibitory neurotransmitter GABA in the brain.A significant increase in seizure threshold was observed following systemic (i.p.) administration of high (600 or 1200 mg/kg) doses of vigabatrin. Bilateral microinjection of vigabatrin (10 μg) into either the anterior or posterior SNr also increased seizure threshold, but less markedly than systemic treatment.
TACA (trans-4-Aminocrotonic acid) is a potent agonist of GABAA and GABAC receptors (KD= 0.6 μM). TACA also is GABA uptake inhibitor and substrate for GABA-T. TACA produces late biphasic responses in the MPG neurons[1][2][3].
Lotilaner is a parasiticide, acts as a potent non-competitive antagonist of insects GABACl receptors, with an IC50 of 23.84 nM for Drosophila melanogaster GABA receptor. No effect on a dog GABAA receptor[1].
6-Aminonicotinic acid is a GABAA receptor agonist with Ki value of 4.4 nM[1].
SCS (Salicylidene salicylhydrazide) is a potent, allosteric and selective inhibitor of β1-containing GABAA receptors with an IC50 of 32 nM against α2β1γ1θ by VIPR measurement. SCS is also a chelator of metal ions[1].
3-Methyl-GABA is an activator of GABA aminotransferase with anticonvulsant activity.
(R)-Baclofen(STX209) is a selective GABAB receptor agonist. IC50 value:Target: GABAB receptorGABAB receptors are metabotropic receptors which produce slow inhibitory signals. By manipulating GABAB receptor activity using Baclofen, a variety of functions are studied including synaptic transmissions and antinociception events.
Ro15-4513, imidazobenzodiazepinone derivative, is a partial inverse agonist of benzodiazepine receptor (BZR)[1]. Ro15-4513 is a potent ethanol antagonist[2]. Ro15-4513 has anti-anxiety effect[3].
Ethyl dirazepate is a drug which is a benzodiazepine derivative. It has anxiolytic and hypnotic and possibly other characteristic benzodiazepine properties.
Propofol-d17 (2,6-Diisopropylphenol-d17) is the deuterium labeled Propofol. 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].
Uldazepam is a benzodiazepine derivative and can be used to treat patients with anxiety syndromes as tranquilizer.
Chlormethiazole is an potent and orally active GABAA agonist[1]. Chlormethiazole inhibits cytochrome P450 isoforms: CYP2A6 and CYP2E1 in human liver microsomes. Chlormethiazole is an anticonvulsant agent and has the potential for treating convulsive status epilepticus[2].
Tracazolate hydrochloride (ICI 136753 hydrochloride) is a potent GABAA receptor modulator. Tracazolate hydrochloride potentiates α1β1γ2s (EC50=13.2 μM) and α1β3γ2 (EC50=1.5 μM) in a concentration-dependent manner. Tracazolate hydrochloride has the potency (EC50) is determined by the nature of the third subunit (γ1-3, δ, ε) within the receptor complex. Tracazolate hydrochloride possesses anxiolytic and anticonvulsant activity[1][2].
SX-3228 is a selective benzodiazepine1 (BZ1) receptor agonist with an IC50 of 17 nM.