| Substance | Relationship Strength | Studies | Trials | Classes | Roles |
|---|
gamma-aminobutyric acid
gamma-Aminobutyric Acid: The most common inhibitory neurotransmitter in the central nervous system.. gamma-aminobutyric acid : A gamma-amino acid that is butanoic acid with the amino substituent located at C-4. | 1.98 | 1 | 0 | amino acid zwitterion;
gamma-amino acid;
monocarboxylic acid | human metabolite;
neurotransmitter;
Saccharomyces cerevisiae metabolite;
signalling molecule |
choline
[no description available] | 1.96 | 1 | 0 | cholines | allergen;
Daphnia magna metabolite;
Escherichia coli metabolite;
human metabolite;
mouse metabolite;
neurotransmitter;
nutrient;
plant metabolite;
Saccharomyces cerevisiae metabolite |
cytosine
[no description available] | 1.97 | 1 | 0 | aminopyrimidine;
pyrimidine nucleobase;
pyrimidone | Escherichia coli metabolite;
human metabolite;
mouse metabolite;
Saccharomyces cerevisiae metabolite |
inositol
Inositol: An isomer of glucose that has traditionally been considered to be a B vitamin although it has an uncertain status as a vitamin and a deficiency syndrome has not been identified in man. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1379) Inositol phospholipids are important in signal transduction.. inositol : Any cyclohexane-1,2,3,4,5,6-hexol.. 1D-chiro-inositol : Belonging to the inositol family of compounds, D-chiro-inositol (DCI) is an isomer of glucose. It is an important secondary messenger in insulin signal transduction.. muco-inositol : An inositol that is cyclohexane-1,2,3,4,5,6-hexol having a (1R,2R,3r,4R,5S,6r)-configuration. | 6.97 | 1 | 0 | cyclitol;
hexol | |
hexamethonium
Hexamethonium: A nicotinic cholinergic antagonist often referred to as the prototypical ganglionic blocker. It is poorly absorbed from the gastrointestinal tract and does not cross the blood-brain barrier. It has been used for a variety of therapeutic purposes including hypertension but, like the other ganglionic blockers, it has been replaced by more specific drugs for most purposes, although it is widely used a research tool. | 2.66 | 3 | 0 | quaternary ammonium salt | |
mecamylamine
Mecamylamine: A nicotinic antagonist that is well absorbed from the gastrointestinal tract and crosses the blood-brain barrier. Mecamylamine has been used as a ganglionic blocker in treating hypertension, but, like most ganglionic blockers, is more often used now as a research tool. | 1.96 | 1 | 0 | primary aliphatic amine | |
carbachol
Carbachol: A slowly hydrolyzed CHOLINERGIC AGONIST that acts at both MUSCARINIC RECEPTORS and NICOTINIC RECEPTORS. | 1.97 | 1 | 0 | ammonium salt;
carbamate ester | cardiotonic drug;
miotic;
muscarinic agonist;
nicotinic acetylcholine receptor agonist;
non-narcotic analgesic |
tubocurarine
Tubocurarine: A neuromuscular blocker and active ingredient in CURARE; plant based alkaloid of Menispermaceae.. tubocurarine : A benzylisoquinoline alkaloid muscle relaxant which constitutes the active component of curare.. isoquinoline alkaloid : Any alkaloid that has a structure based on an isoquinoline nucleus. They are derived from the amino acids like tyrosine and phenylalanine. | 1.97 | 1 | 0 | bisbenzylisoquinoline alkaloid | drug allergen;
muscle relaxant;
nicotinic antagonist |
pempidine
Pempidine: A nicotinic antagonist most commonly used as an experimental tool. It has been used as a ganglionic blocker in the treatment of hypertension but has largely been supplanted for that purpose by more specific drugs. | 1.96 | 1 | 0 | piperidines | |
quinoxalines
quinoxaline : A naphthyridine in which the nitrogens are at positions 1 and 4. | 1.98 | 1 | 0 | mancude organic heterobicyclic parent;
naphthyridine;
ortho-fused heteroarene | |
bicuculline
Bicuculline: An isoquinoline alkaloid obtained from Dicentra cucullaria and other plants. It is a competitive antagonist for GABA-A receptors.. bicuculline : A benzylisoquinoline alkaloid that is 6-methyl-5,6,7,8-tetrahydro[1,3]dioxolo[4,5-g]isoquinoline which is substituted at the 5-pro-S position by a (6R)-8-oxo-6,8-dihydrofuro[3,4-e][1,3]benzodioxol-6-yl group. A light-sensitive competitive antagonist of GABAA receptors. It was originally identified in 1932 in plant alkaloid extracts and has been isolated from Dicentra cucullaria, Adlumia fungosa, Fumariaceae, and several Corydalis species. | 3.08 | 1 | 0 | benzylisoquinoline alkaloid;
isoquinoline alkaloid;
isoquinolines | agrochemical;
central nervous system stimulant;
GABA-gated chloride channel antagonist;
GABAA receptor antagonist;
neurotoxin |
nicotine
(S)-nicotine : A 3-(1-methylpyrrolidin-2-yl)pyridine in which the chiral centre has S-configuration. The naturally occurring and most active enantiomer of nicotine, isolated from Nicotiana tabacum. | 3.67 | 10 | 0 | 3-(1-methylpyrrolidin-2-yl)pyridine | anxiolytic drug;
biomarker;
immunomodulator;
mitogen;
neurotoxin;
nicotinic acetylcholine receptor agonist;
peripheral nervous system drug;
phytogenic insecticide;
plant metabolite;
psychotropic drug;
teratogenic agent;
xenobiotic |
bicuculline methiodide
[no description available] | 3.08 | 1 | 0 | | |
lophotoxin
lophotoxin: belongs to the cembrene class of diterpenoids; neuromuscular toxin isolated from several pacific gorgonians of the genus Lophogorgia; RN given refers to (1R-(1R*,2S*,4S*,10R*,12R*,14R*,15R*))-isomer; structure given in first source | 8.48 | 2 | 0 | | |
bipinnatin b
bipinnatin B: nicotinic receptor antagonist related to lophotoxin; structure given in first source | 1.98 | 1 | 0 | | |
atropine
tropan-3alpha-yl 3-hydroxy-2-phenylpropanoate : A tropane alkaloid that is (1R,5)-8-methyl-8-azabicyclo[3.2.1]octane substituted by a (3-hydroxy-2-phenylpropanoyl)oxy group at position 3. | 1.96 | 1 | 0 | | |
oxytocin
Oxytocin: A nonapeptide hormone released from the neurohypophysis (PITUITARY GLAND, POSTERIOR). It differs from VASOPRESSIN by two amino acids at residues 3 and 8. Oxytocin acts on SMOOTH MUSCLE CELLS, such as causing UTERINE CONTRACTIONS and MILK EJECTION.. oxytocin : A cyclic nonapeptide hormone with amino acid sequence CYIQNCPLG that also acts as a neurotransmitter in the brain; the principal uterine-contracting and milk-ejecting hormone of the posterior pituitary. Together with the neuropeptide vasopressin, it is believed to influence social cognition and behaviour. | 1.98 | 1 | 0 | heterodetic cyclic peptide;
peptide hormone | oxytocic;
vasodilator agent |
nitroarginine
Nitroarginine: An inhibitor of nitric oxide synthetase which has been shown to prevent glutamate toxicity. Nitroarginine has been experimentally tested for its ability to prevent ammonia toxicity and ammonia-induced alterations in brain energy and ammonia metabolites. (Neurochem Res 1995:200(4):451-6). N(gamma)-nitro-L-arginine : An L-arginine derivative that is L-arginine in which the terminal nitrogen of the guanidyl group is replaced by a nitro group. | 1.99 | 1 | 0 | guanidines;
L-arginine derivative;
N-nitro compound;
non-proteinogenic L-alpha-amino acid | |
sesquiterpenes
[no description available] | 1.98 | 1 | 0 | | |
surugatoxin
surugatoxin: marine toxin isolated from japanese ivory shell, Babylonia japonica; structure | 4.49 | 4 | 0 | pteridines | |
conotoxin mi
conotoxin MI: 14-residue peptide toxin from marine snail Conus magus; amino acid sequence in first source | 1.97 | 1 | 0 | | |
tetrodotoxin
Tetrodotoxin: An aminoperhydroquinazoline poison found mainly in the liver and ovaries of fishes in the order TETRAODONTIFORMES, which are eaten. The toxin causes paresthesia and paralysis through interference with neuromuscular conduction.. tetrodotoxin : A quinazoline alkaloid that is a marine toxin isolated from fish such as puffer fish. It has been shown to exhibit potential neutotoxicity due to its ability to block voltage-gated sodium channels. | 1.99 | 1 | 0 | azatetracycloalkane;
oxatetracycloalkane;
quinazoline alkaloid | animal metabolite;
bacterial metabolite;
marine metabolite;
neurotoxin;
voltage-gated sodium channel blocker |
histrionicotoxin
histrionicotoxin: toxin isolated from Colombian frog, Dendrobates histrionicus; structure. histrionicotoxin : An azaspiro compound that is 1-azaspiro[5.5]undecane substituted by a hydroxy group at position 8, a but-1-en-3-yn-1-yl group at position 7 and a pent-3-en-1-yn-5-yl group at position 2 (the 2S,6R,7S,8S stereoisomer). | 6.97 | 1 | 0 | | |
brimonidine tartrate
Brimonidine Tartrate: A quinoxaline derivative and ADRENERGIC ALHPA-2 RECEPTOR AGONIST that is used to manage INTRAOCULAR PRESSURE associated with OPEN-ANGLE GLAUCOMA and OCULAR HYPERTENSION. | 1.98 | 1 | 0 | | |
pituitrin
Pituitrin: A substance or extract from the neurohypophysis (PITUITARY GLAND, POSTERIOR). | 1.98 | 1 | 0 | | |
omega-conotoxin (conus magus)
Conus magus toxin: from marine mollusk Conus magus; 25-27 amino acid peptide; MW 3 kDa | 1.98 | 1 | 0 | | |
picrotoxin
Picrotoxin: A noncompetitive antagonist at GABA-A receptors and thus a convulsant. Picrotoxin blocks the GAMMA-AMINOBUTYRIC ACID-activated chloride ionophore. Although it is most often used as a research tool, it has been used as a CNS stimulant and an antidote in poisoning by CNS depressants, especially the barbiturates.. picrotoxin : A mixture consisting of equimolar amounts of picrotoxinin and picrotin found in the climbing plant Anamirta cocculus. | 3.08 | 1 | 0 | | |
conotoxin gi
conotoxin GI: highly toxic; from venom of marine snail Conus geographus; amino acid sequence given in first source | 1.97 | 1 | 0 | | |
prosurugatoxin
prosurugatoxin: from Japanese ivory shell, Babylonia japonica | 4.49 | 4 | 0 | | |