Page last updated: 2024-10-24
detection of chemical stimulus involved in sensory perception of pain
Definition
Target type: biologicalprocess
The series of events involved in the perception of pain in which a chemical stimulus is received and converted into a molecular signal. [GOC:ai]
The detection of chemical stimuli involved in sensory perception of pain is a complex process that involves multiple steps, starting with the activation of specialized sensory neurons called nociceptors. These neurons are located throughout the body and are responsible for detecting a wide range of noxious stimuli, including heat, cold, pressure, and chemicals.
When a nociceptor is activated, it sends a signal to the spinal cord, which then transmits the signal to the brain. The brain interprets this signal as pain.
There are several different types of nociceptors, each of which is sensitive to a different type of stimulus. For example, some nociceptors are sensitive to heat, while others are sensitive to cold. Still, others are sensitive to chemicals, such as those released from damaged tissues.
The chemical stimuli that activate nociceptors can be divided into two main categories:
1. **Exogenous chemicals**: These are chemicals that originate from outside the body, such as those found in the environment. Some examples of exogenous chemicals that can activate nociceptors include capsaicin, the chemical that gives chili peppers their heat, and acid, which is found in many foods and drinks.
2. **Endogenous chemicals**: These are chemicals that originate from within the body. Some examples of endogenous chemicals that can activate nociceptors include prostaglandins, which are released from damaged tissues, and bradykinin, which is released from the blood vessels.
When a nociceptor is activated by a chemical stimulus, the following events occur:
1. The chemical binds to a receptor on the surface of the nociceptor.
2. The binding of the chemical to the receptor causes a change in the electrical potential of the nociceptor.
3. The change in electrical potential triggers a nerve impulse.
4. The nerve impulse travels along the nociceptor to the spinal cord.
5. The spinal cord transmits the nerve impulse to the brain.
6. The brain interprets the nerve impulse as pain.
The process of pain perception is further modulated by a number of factors, including the individual's emotional state, their previous experiences, and their beliefs about pain. This modulation of pain perception can be influenced by a number of factors, including:
1. **Psychological factors**: Factors such as anxiety, fear, and depression can all influence how pain is perceived.
2. **Social factors**: Factors such as social support and cultural norms can also influence how pain is perceived.
3. **Physiological factors**: Factors such as the amount of inflammation present in the body can also influence how pain is perceived.
The perception of pain is a complex process that involves multiple factors. Understanding the biology of pain perception can help us to better understand how to treat pain and prevent it from occurring in the first place.'
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Proteins (3)
| Protein | Definition | Taxonomy |
|---|---|---|
| Acid-sensing ion channel 3 | An acid-sensing ion channel 3 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9UHC3] | Homo sapiens (human) |
| Transient receptor potential cation channel subfamily V member 1 | A transient receptor potential cation channel TRPV1 that is encoded in the genome of human. [PRO:CNA, UniProtKB:Q8NER1] | Homo sapiens (human) |
| Transient receptor potential cation channel subfamily A member 1 | A transient receptor potential cation channel TRPA1 that is encoded in the genome of human. [PRO:HJD, UniProtKB:O75762] | Homo sapiens (human) |
Compounds (137)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| 4-vinylguaiacol | 2-methoxy-4-vinylphenol : A member of the class of phenols that is guaiacol in which the hydrogen para- to the hydroxy group is replaced by a vinyl group. 2-methoxy-4-vinylphenol: a germination inhibitor; also an odorant in green tea; structure in first source | phenols | flavouring agent; pheromone; plant metabolite |
| 3-methylcatechol | 3-methylbenzene-1,2-diol: structure in first source 3-methylcatechol : A methylcatechol carrying a methyl substituent at position 3. It is a xenobiotic metabolite produced by some bacteria capable of degrading nitroaromatic compounds present in pesticide-contaminated soil samples. dihydroxytoluene : Any hydroxytoluene that has two hydroxy substituents | methylcatechol | bacterial xenobiotic metabolite |
| indole | indole; polycyclic heteroarene | Escherichia coli metabolite | |
| menthol | Menthol: A monoterpene cyclohexanol produced from mint oils. | p-menthane monoterpenoid; secondary alcohol | volatile oil component |
| 2-aminoethoxydiphenyl borate | 2-aminoethoxydiphenyl borate: is a novel membrane-penetrable modulator and transient receptor potential channel blocker; structure in first source; do not confuse with 2-APB cpd 2-aminoethoxydiphenylborane : An organoboron compound that is diphenylborane in which the borane hydrogen is replaced by a 2-aminoethoxy group. | organoboron compound; primary amino compound | calcium channel blocker; IP3 receptor antagonist; potassium channel opener |
| benzyl isothiocyanate | benzyl isothiocyanate: inhibits carcinogen-induced neoplasia; structure in Negwer, 5th ed, #715; also promotes urinary bladder carcinoma | benzenes; isothiocyanate | antibacterial drug |
| cannabinol | Cannabinol: A physiologically inactive constituent of Cannabis sativa L. | dibenzopyran | |
| diclofenac | diclofenac : A monocarboxylic acid consisting of phenylacetic acid having a (2,6-dichlorophenyl)amino group at the 2-position. Diclofenac: A non-steroidal anti-inflammatory agent (NSAID) with antipyretic and analgesic actions. It is primarily available as the sodium salt. | amino acid; aromatic amine; dichlorobenzene; monocarboxylic acid; secondary amino compound | antipyretic; drug allergen; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; environmental contaminant; non-narcotic analgesic; non-steroidal anti-inflammatory drug; xenobiotic |
| disulfiram | organic disulfide; organosulfur acaricide | angiogenesis inhibitor; antineoplastic agent; apoptosis inducer; EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor; EC 3.1.1.1 (carboxylesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; EC 5.99.1.2 (DNA topoisomerase) inhibitor; ferroptosis inducer; fungicide; NF-kappaB inhibitor | |
| flufenamic acid | flufenamic acid : An aromatic amino acid consisting of anthranilic acid carrying an N-(trifluoromethyl)phenyl substituent. An analgesic and anti-inflammatory, it is used in rheumatic disorders. Flufenamic Acid: An anthranilic acid derivative with analgesic, anti-inflammatory, and antipyretic properties. It is used in musculoskeletal and joint disorders and administered by mouth and topically. (From Martindale, The Extra Pharmacopoeia, 30th ed, p16) | aromatic amino acid; organofluorine compound | antipyretic; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; non-narcotic analgesic; non-steroidal anti-inflammatory drug |
| iodoacetamide | |||
| juglone | juglone : A hydroxy-1,4-naphthoquinone that is 1,4-naphthoquinone in which the hydrogen at position 5 has been replaced by a hydroxy group. A plant-derived 1,4-naphthoquinone with confirmed antibacterial and antitumor activities. juglone: structure | hydroxy-1,4-naphthoquinone | geroprotector; herbicide; reactive oxygen species generator |
| mefenamic acid | mefenamic acid : An aminobenzoic acid that is anthranilic acid in which one of the hydrogens attached to the nitrogen is replaced by a 2,3-dimethylphenyl group. Although classed as a non-steroidal anti-inflammatory drug, its anti-inflammatory properties are considered to be minor. It is used to relieve mild to moderate pain, including headaches, dental pain, osteoarthritis and rheumatoid arthritis. Mefenamic Acid: A non-steroidal anti-inflammatory agent with analgesic, anti-inflammatory, and antipyretic properties. It is an inhibitor of cyclooxygenase. | aminobenzoic acid; secondary amino compound | analgesic; antipyretic; antirheumatic drug; EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor; environmental contaminant; non-steroidal anti-inflammatory drug; xenobiotic |
| masoprocol | nordihydroguaretic acid: antioxidant compound found in the creosote bush (Larrea tridentata) | catechols; lignan; tetrol | antioxidant; ferroptosis inhibitor; geroprotector; plant metabolite |
| 5-nitro-2-(3-phenylpropylamino)benzoic acid | 5-nitro-2-(3-phenylpropylamino)benzoic acid: structure given in first source; chloride channel antagonist | nitrobenzoic acid | |
| palmidrol | palmidrol: a cannabinoid receptor-inactive eCB-related molecule used as prophylactic in helping to prevent respiratory viral infection palmitoyl ethanolamide : An N-(long-chain-acyl)ethanolamine that is the ethanolamide of palmitic (hexadecanoic) acid. | endocannabinoid; N-(long-chain-acyl)ethanolamine; N-(saturated fatty acyl)ethanolamine | anti-inflammatory drug; anticonvulsant; antihypertensive agent; neuroprotective agent |
| probenecid | probenecid : A sulfonamide in which the nitrogen of 4-sulfamoylbenzoic acid is substituted with two propyl groups. Probenecid: The prototypical uricosuric agent. It inhibits the renal excretion of organic anions and reduces tubular reabsorption of urate. Probenecid has also been used to treat patients with renal impairment, and, because it reduces the renal tubular excretion of other drugs, has been used as an adjunct to antibacterial therapy. | benzoic acids; sulfonamide | uricosuric drug |
| allyl isothiocyanate | allyl isothiocyanate : An isothiocyanate with the formula CH2=CHCH2N=C=S. A colorless oil with boiling point 152degreeC, it is responsible for the pungent taste of mustard, horseradish, and wasabi. allyl isothiocyanate: used in the manufacture of flavors, war gases; medical use as a counterirritant; structure | alkenyl isothiocyanate; isothiocyanate | antimicrobial agent; antineoplastic agent; apoptosis inducer; lachrymator; metabolite |
| thymol | thymol : A phenol that is a natural monoterpene derivative of cymene. Thymol: A phenol obtained from thyme oil or other volatile oils used as a stabilizer in pharmaceutical preparations, and as an antiseptic (antibacterial or antifungal) agent. | monoterpenoid; phenols | volatile oil component |
| 2-chlorophenol | chlorophenol : A halophenol that is any phenol containing one or more covalently bonded chlorine atoms. | 2-halophenol; monochlorophenol | |
| benzyl bromide | benzyl bromide : A member of the class of benzyl bromides that is toluene substituted on the alpha-carbon with bromine. benzyl bromide: structure given in first source | benzyl bromides | lachrymator |
| ethyl bromoacetate | |||
| acrolein | enal | herbicide; human xenobiotic metabolite; toxin | |
| citronellol | citronellol : A monoterpenoid that is oct-6-ene substituted by a hydroxy group at position 1 and methyl groups at positions 3 and 7. citronellol: alcohol form of citronellal; found in rose oil; RN given refers to parent cpd without isomeric designation; structure insect repellent : An insecticide that acts as a repellent to insects. | monoterpenoid | plant metabolite |
| citronellyl acetate | citronellol acetate : A monoterpenoid that is the acetate ester of citronellol. It has been isolated from Citrus hystrix. citronellyl acetate: RN given refers to cpd without isomeric designation | acetate ester; monoterpenoid | plant metabolite |
| dibenz(b,f)(1,4)oxazepine | |||
| 4-methylcatechol | methylcatechol | antioxidant; carcinogenic agent; hapten; human metabolite; plant metabolite | |
| plumbagin | plumbagin : A hydroxy-1,4-naphthoquinone that is 1,4-naphthoquinone in which the hydrogens at positions 2 and 5 are substituted by methyl and hydroxy groups, respectively. plumbagin: a superoxide anion generator | hydroxy-1,4-naphthoquinone; phenols | anticoagulant; antineoplastic agent; immunological adjuvant; metabolite |
| carvacrol | carvacrol : A phenol that is a natural monoterpene derivative of cymene. An inhibitor of bacterial growth, it is used as a food additive. Potent activator of the human ion channels transient receptor potential V3 (TRPV3) and A1 (TRPA1). | botanical anti-fungal agent; p-menthane monoterpenoid; phenols | agrochemical; antimicrobial agent; flavouring agent; TRPA1 channel agonist; volatile oil component |
| 2,3-dimethylphenol | |||
| toluene 2,4-diisocyanate | toluene 2,4-diisocyanate : A toluene meta-diisocyanate in which the isocyanato groups are at positions 2 and 4 relative to the methyl group on the benzene ring. Toluene 2,4-Diisocyanate: Skin irritant and allergen used in the manufacture of polyurethane foams and other elastomers. | toluene meta-diisocyanate | allergen; hapten |
| allyl sulfide | allyl sulfide: essence of garlic; inhibits CYP2E1 | organic sulfide | |
| bromoacetone | bromoacetone : An alpha-bromoketone that is acetone in which one of the hydrogens is replaced by a bromine atom. A poweful lachrymator, it was formerly used as a chemical weapon. | alpha-bromoketone | lachrymator |
| dronabinol | Delta(9)-tetrahydrocannabinol : A diterpenoid that is 6a,7,8,10a-tetrahydro-6H-benzo[c]chromene substituted at position 1 by a hydroxy group, positions 6, 6 and 9 by methyl groups and at position 3 by a pentyl group. The principal psychoactive constituent of the cannabis plant, it is used for treatment of anorexia associated with AIDS as well as nausea and vomiting associated with cancer chemotherapy. Dronabinol: A psychoactive compound extracted from the resin of Cannabis sativa (marihuana, hashish). The isomer delta-9-tetrahydrocannabinol (THC) is considered the most active form, producing characteristic mood and perceptual changes associated with this compound. | benzochromene; diterpenoid; phytocannabinoid; polyketide | cannabinoid receptor agonist; epitope; hallucinogen; metabolite; non-narcotic analgesic |
| amiloride | amiloride : A member of the class of pyrazines resulting from the formal monoacylation of guanidine with the carboxy group of 3,5-diamino-6-chloropyrazine-2-carboxylic acid. Amiloride: A pyrazine compound inhibiting SODIUM reabsorption through SODIUM CHANNELS in renal EPITHELIAL CELLS. This inhibition creates a negative potential in the luminal membranes of principal cells, located in the distal convoluted tubule and collecting duct. Negative potential reduces secretion of potassium and hydrogen ions. Amiloride is used in conjunction with DIURETICS to spare POTASSIUM loss. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p705) | aromatic amine; guanidines; organochlorine compound; pyrazines | diuretic; sodium channel blocker |
| diallyl trisulfide | organic trisulfide | anti-inflammatory agent; antilipemic drug; antineoplastic agent; antioxidant; antiprotozoal drug; apoptosis inducer; estrogen receptor antagonist; insecticide; platelet aggregation inhibitor; vasodilator agent | |
| perillaldehyde | perillaldehyde: from oil of Perillae herba; has neuropharmacological actions; RN given refers to cpd without isomeric designation; structure in Merck Index, 9th ed, #6956 perillyl aldehyde : An aldehyde that is cyclohex-1-ene-1-carbaldehyde substituted by a prop-1-en-2-yl group at position 4. | aldehyde; olefinic compound | human metabolite; mouse metabolite; volatile oil component |
| diallyl disulfide | diallyl disulfide : An organic disulfide where the organic group specified is allyl. It has been isolated from garlic and other species of the genus Allium. diallyl disulfide: major constituent of garlic oil | organic disulfide | antifungal agent; antineoplastic agent; plant metabolite |
| menthol | (-)-menthol : A p-menthan-3-ol which has (1R,2S,5R)-stereochemistry. It is the most common naturally occurring enantiomer. (+-)-menthol : A racemate comprising equimolar amounts of (+)- and (-)-menthol. Both (+-)- and (-)-menthol are used to relieve symptoms of conditions such as bronchitis and sinusitis. When applied to the skin, menthol dilates the blood vessels, giving a sensation of coldness followed by an analgesic effect that relieves itching. It is therefore used in creams and ointments for the relief of pruritis and urticaria. | p-menthan-3-ol | antipruritic drug; antispasmodic drug; antitussive |
| phenethyl isothiocyanate | phenethyl isothiocyanate : An isothiocyanate having a phenethyl group attached to the nitrogen. It is a naturally occurring compound found in some cruciferous vegetables (e.g. watercress) and is known to possess anticancer properties. phenethyl isothiocyanate: a dietary liver aldehyde dehydrogenase inhibitor; promotes urinary bladder carcinoma | isothiocyanate | antineoplastic agent; EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor; metabolite |
| o-chlorobenzylidenemalonitrile | o-Chlorobenzylidenemalonitrile: A riot control agent which causes temporary irritation of the eyes and the mucosal surface of the respiratory tract. It is a more potent irritant than OMEGA-CHLOROACETOPHENONE, but less incapacitating. | organochlorine compound | |
| chlordantoin | chlordantoin: structure | imidazolidine-2,4-dione | |
| cannabichromene | 1-benzopyran | ||
| isovelleral | isovelleral: structure given in first source | aldehyde | |
| iberverin | |||
| 4-ethylguaiacol | 4-ethylguaiacol: a constituent of wood creosote; suppresses intestinal smooth muscle contraction | methoxybenzenes; phenols | |
| allicin | botanical anti-fungal agent; sulfoxide | antibacterial agent | |
| perilla ketone | perilla ketone: potent lung toxin from Perilla frutescens; structure | aromatic ketone | |
| 4-ethylcatechol | 4-ethylcatechol: structure in first source | catechols | |
| polygodial | aldehyde | ||
| voacamine | alkaloid ester; methyl ester; monoterpenoid indole alkaloid; organic heteropentacyclic compound; tertiary amino compound | angiogenesis inhibitor; antineoplastic agent; plant metabolite | |
| erucin | isothiocyanate | ||
| 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-(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 |
| beta-eudesmol | beta-eudesmol : A carbobicyclic compound that is trans-decalin substituted at positions 2, 4a, and 8 by 2-hydroxypropan-2-yl, methyl and methylidene groups, respectively (the 2R,4aR,8aS-diastereoisomer). beta-eudesmol: found in Atractylodes and other plants; RN given refers to (2R-(2alpha,4aalpha,8abeta))-isomer | carbobicyclic compound; eudesmane sesquiterpenoid; tertiary alcohol | volatile oil component |
| (6ar-trans)-isomer of tetrahydrocannabivarin 9 | |||
| cp-55,940 | |||
| 1,1'-biphenyl-4-yl-boronic acid | |||
| camphora | (R)-camphor : The (R)- enantiomer of camphor. camphora: a component of Guanxingao, a kind of traditional Chinese rubber electuary medicine which is able to either cure or guard against coronary heart disease and angina pectoris | camphor | |
| 4-hydroxybenzyl isothiocyanate | 4-hydroxybenzyl isothiocyanate: found in white mustard; structure in first source | phenols | |
| ag 3-5 | icilin: a cooling compound that activates TRPM8 | C-nitro compound | |
| 6-methylthiohexyl isothiocyanate | 1-isothiocyanato-6-(methylsulfanyl)hexane : A isothiocyanate that is hexane in which two of the terminal methyl hydrogens at positions 1 and 6 have been replaced by isothiocyanato and methylsulfanyl groups. 6-methylthiohexyl isothiocyanate: isolated from Wasabia japonica (wasabi) | isothiocyanate; methyl sulfide | antineoplastic agent; Arabidopsis thaliana metabolite; EC 4.1.1.17 (ornithine decarboxylase) inhibitor; neuroprotective agent |
| dihydroresveratrol | dihydroresveratrol : A stilbenol that is 1,1'-ethane-1,2-diyldibenzene with hydroxy groups at positions 1, 3 and 4'. dihydroresveratrol: structure in first source | stilbenol | plant metabolite; xenobiotic metabolite |
| resveratrol | trans-resveratrol : A resveratrol in which the double bond has E configuration. | resveratrol | antioxidant; phytoalexin; plant metabolite; quorum sensing inhibitor; radical scavenger |
| 2-butenal | crotonaldehyde : An enal consisting of propene having a formyl group at the 1-position. | enal | |
| Tetrahydropiperine | benzodioxoles | ||
| cinnamaldehyde | (E)-cinnamaldehyde : The E (trans) stereoisomer of cinnamaldehyde, the parent of the class of cinnamaldehydes. 3-phenylprop-2-enal : A member of the class of cinnamaldehydes that is prop-2-enal in which a hydrogen at position 3 has been replaced by a phenyl group. The configuration of the double bond is not specified; the name "cinnamaldehyde" is widely used to refer to the E (trans) isomer. | 3-phenylprop-2-enal; cinnamaldehydes | antifungal agent; EC 4.3.1.24 (phenylalanine ammonia-lyase) inhibitor; flavouring agent; hypoglycemic agent; plant metabolite; sensitiser; vasodilator agent |
| geraniol | 3,7-dimethylocta-2,6-dien-1-ol; monoterpenoid; primary alcohol | allergen; fragrance; plant metabolite; volatile oil component | |
| piperine | piperine : A N-acylpiperidine that is piperidine substituted by a (1E,3E)-1-(1,3-benzodioxol-5-yl)-5-oxopenta-1,3-dien-5-yl group at the nitrogen atom. It is an alkaloid isolated from the plant Piper nigrum. | benzodioxoles; N-acylpiperidine; piperidine alkaloid; tertiary carboxamide | food component; human blood serum metabolite; NF-kappaB inhibitor; plant metabolite |
| ilepcimide | ilepcimide: structure given in first source; RN given refers to compound with no isomeric designation | benzodioxoles | |
| butylidenephthalide | 2-benzofurans; gamma-lactone | EC 3.2.1.20 (alpha-glucosidase) inhibitor; hypoglycemic agent; metabolite | |
| nerol | nerol : The (2Z)-stereoisomer of 3,7-dimethylocta-2,6-dien-1-ol. It has been isolated from the essential oils from plants like lemon grass. | 3,7-dimethylocta-2,6-dien-1-ol | fragrance; plant metabolite; volatile oil component |
| cannabidiol | cannabidiol : An cannabinoid that is cyclohexene which is substituted by a methyl group at position 1, a 2,6-dihydroxy-4-pentylphenyl group at position 3, and a prop-1-en-2-yl group at position 4. Cannabidiol: Compound isolated from Cannabis sativa extract. | olefinic compound; phytocannabinoid; resorcinols | antimicrobial agent; plant metabolite |
| sb 366791 | N-(3-methoxyphenyl)-4-chlorocinnamanilide: a TRPV1 antagonist; structure in first source | ||
| (e)-3-(4-t-butylphenyl)-n-(2,3-dihydrobenzo(b)(1,4)dioxin-6-yl)acrylamide | 3-(4-t-butylphenyl)-N-(2,3-dihydrobenzo(b)(1,4)dioxin-6-yl)acrylamide: a vanilloid receptor 1 antagonist and antihyperalgesic agent; structure in first source | ||
| isoeugenol | trans-isoeugenol : The trans-stereoisomer of isoeugenol. | isoeugenol | plant metabolite |
| hc 030031 | 2-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl)-N-(4-isopropylphenyl)acetamide: a TRPA1 channel blocker | ||
| urb 597 | cyclohexyl carbamic acid 3'-carbamoylbiphenyl-3-yl ester: a fatty acid amide hydrolase inhibitor; structure in first source | biphenyls | |
| zucapsaicin | methoxybenzenes; phenols | ||
| capsaicin | ALGRX-4975: an injectable capsaicin (TRPV1 receptor agonist) formulation for longlasting pain relief capsaicinoid : A family of aromatic fatty amides produced as secondary metabolites by chilli peppers. | capsaicinoid | non-narcotic analgesic; TRPV1 agonist; voltage-gated sodium channel blocker |
| geranyl acetate | geranyl acetate : A monoterpenoid that is the acetate ester derivative of geraniol. geranyl acetate: constituted about 90% of the palmarosa oil | acetate ester; monoterpenoid | plant metabolite |
| capsazepine | capsazepine : A benzazepine that is 2,3,4,5-tetrahydro-1H-2-benzazepine which is substituted by hydroxy groups at positions 7 and 8 and on the nitrogen atom by a 2-(p-chlorophenyl)ethylaminothiocarbonyl group. A synthetic analogue of capsaicin, it was the first reported capsaicin receptor antagonist. capsazepine: modified capsaicin molecule; a capsaicin receptor antagonist | benzazepine; catechols; monochlorobenzenes; thioureas | capsaicin receptor antagonist |
| phorbol 12-phenylacetate 13-acetate 20-homovanillate | phorbol 12-phenylacetate 13-acetate 20-homovanillate: behavior contrasts with resiniferatoxin and capsaicin in the lack of cooperativity in binding vanilloid (capsaicin) receptor | ||
| 6-iodonordihydrocapsaicin | 6-iodonordihydrocapsaicin: a TRPV1 antagonist | methoxybenzenes; phenols | |
| pinosylvin | pinosylvin: phytoalexin found in pine and eucalyptus | pinosylvin | |
| prostaglandin a2 | prostaglandin A2: RN given refers to (5Z,13E,15S)-isomer | prostaglandins A | human metabolite |
| Pinosylvin methyl ether | stilbenoid | ||
| pterostilbene | diether; methoxybenzenes; stilbenol | anti-inflammatory agent; antineoplastic agent; antioxidant; apoptosis inducer; hypoglycemic agent; neuroprotective agent; neurotransmitter; plant metabolite; radical scavenger | |
| shogaol | shogaol: from ginger, ZINGIBER OFFICINALE; less mutagenic than GINGEROL; structure given in first source | enone; monomethoxybenzene; phenols | |
| prostaglandin a1 | prostaglandins A | ||
| anandamide | anandamide : An N-acylethanolamine 20:4 resulting from the formal condensation of carboxy group of arachidonic acid with the amino group of ethanolamine. | endocannabinoid; N-acylethanolamine 20:4 | human blood serum metabolite; neurotransmitter; vasodilator agent |
| arachidonyl dopamine | arachidonyl dopamine: a ligand for the vanilloid receptor VR1 | catechols; fatty amide; N-(fatty acyl)-dopamine; secondary carboxamide | |
| tranilast | tranilast : An amidobenzoic acid that is anthranilic acid in which one of the anilino hydrogens is replaced by a 3,4-dimethoxycinnamoyl group. tranilast: antiallergic drug; potent inhibitor of homologous passive cutaneous anaphylaxis | amidobenzoic acid; cinnamamides; dimethoxybenzene; secondary carboxamide | anti-allergic agent; anti-asthmatic drug; antineoplastic agent; aryl hydrocarbon receptor agonist; calcium channel blocker; hepatoprotective agent; nephroprotective agent |
| 4,4'-dihydroxystilbene | stilbene-4,4'-diol | ||
| linoleoyl ethanolamide | linoleoyl ethanolamide : An N-acylethanolamine 18:2 that is the ethanolamide of linoleic acid. linoleoyl ethanolamide: RN given for (Z,Z)-isomer | N-acylethanolamine 18:2 | EC 3.5.1.99 (fatty acid amide hydrolase) inhibitor |
| n-oleoylethanolamine | N-oleoylethanolamine: ceramidase inhibitor oleoyl ethanolamide : An N-(long-chain-acyl)ethanolamine that is the ethanolamide of oleic acid. The monounsaturated analogue of the endocannabinoid anandamide. | endocannabinoid; N-(long-chain-acyl)ethanolamine; N-acylethanolamine 18:1 | EC 3.5.1.23 (ceramidase) inhibitor; geroprotector; PPARalpha agonist |
| 4-hydroxystilbene | 4-hydroxystilbene: RN given refers to cpd without isomeric designation stilben-4-ol : A phenol having the structure of stilbene with a hydroxy function at C-4 of one of the phenyl rings; the stereochemistry across the alkene bond is not specified. | stilben-4-ol | |
| olvanil | methoxybenzenes; phenols | ||
| 15-deoxy-delta(12,14)-prostaglandin j2 | 15-deoxy-Delta(12,14)-prostaglandin J2 : A prostaglandin J derivative comprising prostaglandin J2 lacking the 15-hydroxy group and having C=C double bonds at the 12- and 14-positions. 15-deoxy-delta(12,14)-prostaglandin J2: 15-deoxy-PGJ2 is also available; check for double bonds (indicated by delta) at 12 and 14 positions | prostaglandins J | electrophilic reagent; insulin-sensitizing drug; metabolite |
| cannabigerol | cannabigerol : A member of the class of resorcinols that is resorcinol which is substituted by a (2E)-3,7-dimethylocta-2,6-dien-1-yl group at position 2 and by a pentyl group at position 5. It is a natural product found in Cannabis sativa and Helichrysum species. cannabigerol: RN given refers to (E)-isomer; structure given in first source | phytocannabinoid; resorcinols | anti-inflammatory agent; antibacterial agent; antioxidant; appetite enhancer; cannabinoid receptor agonist; neuroprotective agent; plant metabolite |
| 3,5-dimethoxy-trans-stilbene | 3,5-dimethoxystilbene: structure in first source | stilbenoid | |
| albaconol | albaconol: from the mushroom Albatrellus; structure in first source | ||
| ligustilide | ligustilide: found in Umbelliferae plants; RN given refers to cpd without isomeric designation; structure in first source | butenolide | metabolite |
| Piperanine | benzodioxoles | ||
| piperlonguminine | piperlonguminine: from Piper longum; structure in first source | benzodioxoles | |
| 4-amylcinnamoylanthranilic acid | 4-amylcinnamoylanthranilic acid: phospholipase A2 inhibitor N-(p-amylcinnamoyl)anthranilic acid : An amidobenzoic acid that is anthranilic acid in which one of the anilino hydrogens is replaced by a 4-pentylcinnamoyl group. It is a transient receptor potential (TRP) channel blocker and phospholipase A2 (PLA2) inhibitor. | amidobenzoic acid; cinnamamides; secondary carboxamide | EC 3.1.1.4 (phospholipase A2) inhibitor; TRP channel blocker |
| farnesylthioacetic acid | farnesylthioacetic acid: a competitive inhibitor of isoprenylated protein methyltransferase; structure in first source | ||
| 2-pentenal | (E)-2-pentenal : A 2-pentenal in which the double bond has (E)-configuration. It is found in cigarette smoke, virgin olive oil, and milk. 2-pentenal : An enal consisting of pent-2-ene having an oxo group at the 1-position 2-pentenal: RN given refers to cpd without isomeric designation | 2-pentenal | plant metabolite |
| 3,4',5-trimethoxystilbene | 3,4',5-trimethoxystilbene: structure in first source | ||
| catharanthine | alkaloid ester; bridged compound; methyl ester; monoterpenoid indole alkaloid; organic heteropentacyclic compound; tertiary amino compound | ||
| s-trans,trans-farnesylthiosalicylic acid | farnesylthiosalicylic acid: structure in first source | sesquiterpenoid | |
| iodoresiniferatoxin | iodoresiniferatoxin: a vanilloid receptor 1 antagonist | ||
| 4-oxo-2-nonenal | (E)-4-oxonon-2-enal : The enal that is (E)-non-2-enal substituted with an oxo group at C-4. 4-oxo-2-nonenal: reacts with 2'-deoxyguanosine; a product of lipid peroxidation; structure in first source | enal; enone | human metabolite |
| arvanil | arvanil: structure in first source | methoxybenzenes; phenols | |
| borneol | borneol | ||
| am 404 | anilide | ||
| 1-isoquinolin-5-yl-3-(4-trifluoromethyl-benzyl)-urea | 1-isoquinolin-5-yl-3-(4-trifluoromethyl-benzyl)-urea: structure in first source | ||
| 4-(4-chlorophenyl)-3-methylbut-3-en-2-oxime | 4-(4-chlorophenyl)-3-methylbut-3-en-2-oxime: a TRPA1 antagonist | ||
| sb 705498 | SB 705498: structure in first source | ||
| n-(4-tert-butylphenyl)-4-(3-chloropyridin-2-yl)tetrahydropyrazine-1(2h)-carboxamide | N-(4-tert-butylphenyl)-4-(3-chloropyridin-2-yl)tetrahydropyrazine-1(2H)-carboxamide: a vanilloid receptor 1 antagonist and analgesic; structure in first source | piperazines; pyridines | |
| arachidonoylserotonin | arachidonoylserotonin: an NSAID with antinociceptive activity; fatty acid amide hydrolase inhibitor; structure in first source N-arachidonoylserotonin : An N-acylserotonin obtained by formal condensation of the carboxy group of arachidonic acid with the primary amino group of serotonin. | N-acylserotonin; phenols | anti-inflammatory agent; anticonvulsant; antioxidant; capsaicin receptor antagonist; EC 3.5.1.99 (fatty acid amide hydrolase) inhibitor; human metabolite; signalling molecule |
| jyl 1421 | JYL 1421: a vanilloid receptor antagonist; structure in first source | ||
| abt 102 | ABT 102: a TRPV1 antagonist; structure in first source | ||
| jnj 17203212 | |||
| a 784168 | 1-(3-(trifluoromethyl)pyridin-2-yl)-N-(4-(trifluoromethylsulfonyl)phenyl)-1,2,3,6-tetrahydropyridine-4-carboxamide: a TRPV1 antagonist | ||
| ly2183240 | LY2183240: structure in first source | biphenyls | |
| methylphenidate | N-phenyl-4-(quinolin-2-ylmethyl)piperazine-1-carboxamide: a fatty acid amide hydrolase inhibitor; structure in first source | ||
| cannabidivarin | cannabidivarin: from Cannabis sativa | monoterpenoid | |
| a-438079 | |||
| amg 517 | |||
| a 803467 | A 803467: an Nav1.8 sodium channel blocker; structure in first source | ||
| mavatrep | mavatrep: a transient receptor potential vanilloid 1 antagonist; structure in first source | ||
| am 6701 | |||
| 8-iso-prostaglandin a2 | 8-isoprostaglandin A2: a cyclopentenone isoprostane | prostanoid | |
| a 967079 | A 967079: a TRPA1 channel antagonist; structure in first source | ||
| voacristine | voacristine: indole alkaloid from leaves of Ervatamia coronaria; RN given for 20(S)-isomer; structure given in first source | ||
| miogadial | miogadial: responsible for hot taste of myoga, Zingiber mioga; structure in first source | ||
| abt 116 | ABT 116: a TRPV1 antagonist with analgesic activity; structure in first source |