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Chemical compound
Pharmaceutical compound
Pitrazepin is a competitive GABAA and glycine receptor antagonist .[ 1] [ 2] [ 3] insect and snail nervous systems in scientific research .[ 4] [ 5] [ 6] [ 7] [ 8] [ 9]
^ Gähwiler BH, Maurer R, Wüthrich HJ (April 1984). "Pitrazepin, a novel GABAA antagonist". Neuroscience Letters . 45 (3): 311–6. doi :10.1016/0304-3940(84)90244-1 . PMID 6328380 . S2CID 45153546 . ^ Braestrup C, Nielsen M (November 1985). "Interaction of pitrazepin with the GABA/benzodiazepine receptor complex and with glycine receptors". European Journal of Pharmacology . 118 (1–2): 115–21. doi :10.1016/0014-2999(85)90669-7 . PMID 3002806 . ^ Curtis DR, Gynther BD (November 1986). "Pitrazepin: a central glycine and GABA antagonist". European Journal of Pharmacology . 131 (2–3): 311–3. doi :10.1016/0014-2999(86)90590-X . PMID 3816960 . ^ Anthony NM, Harrison JB, Sattelle DB (1993). "GABA receptor molecules of insects". Exs . 63 : 172–209. doi :10.1007/978-3-0348-7265-2_8 . ISBN 978-3-0348-7267-6 PMID 7678525 . ^ Sattelle DB, Pinnock RD, Wafford KA, David JA (January 1988). "GABA receptors on the cell-body membrane of an identified insect motor neuron". Proceedings of the Royal Society B 232 (1269): 443–56. Bibcode :1988RSPSB.232..443S . doi :10.1098/rspb.1988.0006 . PMID 2451252 . S2CID 40290279 . ^ Murphy VF, Wann KT (November 1988). "The action of GABA receptor agonists and antagonists on muscle membrane conductance in Schistocerca gregaria" . British Journal of Pharmacology 95 (3): 713–22. doi :10.1111/j.1476-5381.1988.tb11697.x . PMC 1854212 PMID 2850061 . ^ Zhang W, Han XY, Wong SM, Takeuchi H (January 1997). "Pharmacologic characteristics of excitatory gamma-amino-butyric acid (GABA) receptors in a snail neuron". General Pharmacology . 28 (1): 45–53. doi :10.1016/S0306-3623(96)00152-8 . PMID 9112076 . ^ Kim KH, Takeuchi H (June 1990). "Pharmacological characteristics of two different types of inhibitory GABA receptors on Achatina fulica neurones". European Journal of Pharmacology . 182 (1): 49–62. doi :10.1016/0014-2999(90)90492-O . PMID 2169426 . ^ Takeuchi H (September 1992). "Sensitivities of Achatina giant neurones to putative amino acid neurotransmitters". Comparative Biochemistry and Physiology C . 103 (1): 1–12. doi :10.1016/0742-8413(92)90219-w . PMID 1360362 .
Ionotropic
GABAA Tooltip γ-Aminobutyric acid A receptor
Positive modulators (abridged; see here for a full list): α-EMTBL Alcohols (e.g., drinking alcohol , 2M2B )Anabolic steroids Avermectins (e.g., ivermectin )Barbiturates (e.g., phenobarbital )Benzodiazepines (e.g., diazepam )Bromide compounds (e.g., potassium bromide )Carbamates (e.g., meprobamate )Carbamazepine Chloralose Chlormezanone Clomethiazole Dihydroergolines (e.g., ergoloid (dihydroergotoxine) )Etazepine Etifoxine Fenamates (e.g., mefenamic acid )Flavonoids (e.g., apigenin , hispidulin )Fluoxetine Flupirtine Imidazoles (e.g., etomidate )Kava constituents (e.g., kavain )Lanthanum Loreclezole Monastrol Neuroactive steroids (e.g., allopregnanolone , cholesterol , THDOC )Niacin Niacinamide Nonbenzodiazepines (e.g., β-carbolines (e.g., abecarnil ), cyclopyrrolones (e.g., zopiclone ), imidazopyridines (e.g., zolpidem ), pyrazolopyrimidines (e.g., zaleplon ))Norfluoxetine Petrichloral Phenols (e.g., propofol )Phenytoin Piperidinediones (e.g., glutethimide )Propanidid Pyrazolopyridines (e.g., etazolate )Quinazolinones (e.g., methaqualone )Retigabine (ezogabine) ROD-188 Skullcap constituents (e.g., baicalin )Stiripentol Sulfonylalkanes (e.g., sulfonmethane (sulfonal) )Topiramate Valerian constituents (e.g., valerenic acid )Volatiles /gases (e.g., chloral hydrate , chloroform , diethyl ether , paraldehyde , sevoflurane )Negative modulators: 1,3M1B 3M2B 11-Ketoprogesterone 17-Phenylandrostenol α3IA α5IA (LS-193,268) β-CCB β-CCE β-CCM β-CCP β-EMGBL Anabolic steroids Amiloride Anisatin β-Lactams (e.g., penicillins , cephalosporins , carbapenems )Basmisanil Bemegride Bicyclic phosphates (TBPS , TBPO , IPTBO )BIDN Bilobalide Bupropion CHEB Chlorophenylsilatrane Cicutoxin Cloflubicyne Cyclothiazide DHEA DHEA-S Dieldrin (+)-DMBB DMCM DMPC EBOB Etbicyphat FG-7142 (ZK-31906) Fiproles (e.g., fipronil )Flavonoids (e.g., amentoflavone , oroxylin A )Flumazenil Fluoroquinolones (e.g., ciprofloxacin )Flurothyl Furosemide Golexanolone Iomazenil (123 I) IPTBO Isopregnanolone (sepranolone) L-655,708 Laudanosine Lindane MaxiPost Morphine Morphine-3-glucuronide MRK-016 Naloxone Naltrexone Nicardipine Nonsteroidal antiandrogens (e.g., apalutamide , bicalutamide , enzalutamide , flutamide , nilutamide )Oenanthotoxin Pentylenetetrazol (pentetrazol) Phenylsilatrane Picrotoxin (i.e., picrotin , picrotoxinin and dihydropicrotoxinin )Pregnenolone sulfate Propybicyphat PWZ-029 Radequinil Ro 15-4513 Ro 19-4603 RO4882224 RO4938581 Sarmazenil SCS Suritozole TB-21007 TBOB TBPS TCS-1105 Terbequinil TETS Thujone U-93631 Zinc ZK-93426 GABAA -ρ Tooltip γ-Aminobutyric acid A-rho receptor
Metabotropic
GABAB Tooltip γ-Aminobutyric acid B receptor
Receptor (ligands )
GlyR Tooltip Glycine receptor
Positive modulators: Alcohols (e.g., brometone , chlorobutanol (chloretone) , ethanol (alcohol) , tert -butanol (2M2P)tribromoethanol , trichloroethanol , trifluoroethanol )Alkylbenzene sulfonate Anandamide Barbiturates (e.g., pentobarbital , sodium thiopental )Chlormethiazole D12-116 Dihydropyridines (e.g., nicardipine )Etomidate Ginseng constituents (e.g., ginsenosides (e.g., ginsenoside-Rf ))Glutamic acid (glutamate) Ivermectin Ketamine Neuroactive steroids (e.g., alfaxolone , pregnenolone (eltanolone) , pregnenolone acetate , minaxolone , ORG-20599 )Nitrous oxide Penicillin G Propofol Tamoxifen Tetrahydrocannabinol Triclofos Tropeines (e.g., atropine , bemesetron , cocaine , LY-278584 , tropisetron , zatosetron )Volatiles /gases (e.g., chloral hydrate , chloroform , desflurane , diethyl ether (ether) , enflurane , halothane , isoflurane , methoxyflurane , sevoflurane , toluene , trichloroethane (methyl chloroform) , trichloroethylene )Xenon Zinc Antagonists: 2-Aminostrychnine 2-Nitrostrychnine 4-Phenyl-4-formyl-N-methylpiperidine αEMBTL Bicuculline Brucine Cacotheline Caffeine Colchicine Colubrine Cyanotriphenylborate Dendrobine Diaboline Endocannabinoids (e.g., 2-AG , anandamide (AEA) )Gaboxadol (THIP) Gelsemine iso-THAZ Isobutyric acid Isonipecotic acid Isostrychnine Laudanosine N-Methylbicuculline N-Methylstrychnine N,N-Dimethylmuscimol Nipecotic acid Pitrazepin Pseudostrychnine Quinolines (e.g., 4-hydroxyquinoline , 4-hydroxyquinoline-3-carboxylic acid , 5,7-CIQA , 7-CIQ , 7-TFQ , 7-TFQA )RU-5135 Sinomenine Strychnine Thiocolchicoside Tutin Negative modulators: Amiloride Benzodiazepines (e.g., bromazepam , clonazepam , diazepam , flunitrazepam , flurazepam )Corymine Cyanotriphenylborate Daidzein Dihydropyridines (e.g., nicardipine , nifedipine , nitrendipine )Furosemide Genistein Ginkgo constituents (e.g., bilobalide , ginkgolides (e.g., ginkgolide A , ginkgolide B , ginkgolide C , ginkgolide J , ginkgolide M ))Imipramine NBQX Neuroactive steroids (e.g., 3α-androsterone sulfate , 3β-androsterone sulfate , deoxycorticosterone , DHEA sulfate , pregnenolone sulfate , progesterone )Opioids (e.g., codeine , dextromethorphan , dextrorphan , levomethadone , levorphanol , morphine , oripavine , pethidine , thebaine )Picrotoxin (i.e., picrotin and picrotoxinin )PMBA Riluzole Tropeines (e.g., bemesetron , LY-278584 , tropisetron , zatosetron )Verapamil Zinc NMDAR Tooltip N-Methyl-D-aspartate receptor
Transporter (blockers )
GlyT1 Tooltip Glycine transporter 1 GlyT2 Tooltip Glycine transporter 2
