Gene Association: EPHX2
UniProt Search:
EPHX2 (PROTEIN_CODING)
Function Description: epoxide hydrolase 2
found 125 associated metabolites with current gene based on the text mining result from the pubmed database.
Methyl hexadecanoic acid
Methyl hexadecanoate, also known as methyl palmitate or palmitic acid methyl ester, is a member of the class of compounds known as fatty acid methyl esters. Fatty acid methyl esters are compounds containing a fatty acid that is esterified with a methyl group. They have the general structure RC(=O)OR, where R=fatty aliphatic tail or organyl group and R=methyl group. Thus, methyl hexadecanoate is considered to be a fatty ester lipid molecule. Methyl hexadecanoate is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Methyl hexadecanoate is a fatty, oily, and waxy tasting compound found in cloves, which makes methyl hexadecanoate a potential biomarker for the consumption of this food product. Methyl hexadecanoate can be found primarily in saliva. Methyl hexadecanoic acid belongs to the class of organic compounds known as fatty acid methyl esters. These are compounds containing a fatty acid that is esterified with a methyl group. They have the general structure RC(=O)OR, where R=fatty aliphatic tail or organyl group and R=methyl group. Methyl palmitate is a fatty acid methyl ester. It has a role as a metabolite. Methyl palmitate is a natural product found in Zanthoxylum beecheyanum, Lonicera japonica, and other organisms with data available. A natural product found in Neolitsea daibuensis. Methyl palmitate. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=112-39-0 (retrieved 2024-07-03) (CAS RN: 112-39-0). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Methyl palmitate, an acaricidal compound occurring in Lantana camara, inhibits phagocytic activity and immune response. Methyl palmitate also posseses anti-inflammatory and antifibrotic effects[1][2][3]. Methyl palmitate, an acaricidal compound occurring in Lantana camara, inhibits phagocytic activity and immune response. Methyl palmitate also posseses anti-inflammatory and antifibrotic effects[1][2][3].
Caryophyllene alpha-oxide
Caryophyllene oxide is an epoxide. It has a role as a metabolite.
Caryophyllene oxide is a natural product found in Xylopia emarginata, Eupatorium altissimum, and other organisms with data available.
See also: Cannabis sativa subsp. indica top (part of).
Caryophyllene alpha-oxide is a minor produced of epoxidn. of
9,10-Dihydroxystearic acid
9,10-dihydroxystearic acid, also known as 9,10-dhsa or 9,10-dioh 18:0, is a member of the class of compounds known as long-chain fatty acids. Long-chain fatty acids are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. Thus, 9,10-dihydroxystearic acid is considered to be an octadecanoid lipid molecule. 9,10-dihydroxystearic acid is practically insoluble (in water) and a weakly acidic compound (based on its pKa). 9,10-dihydroxystearic acid can be found in peanut, which makes 9,10-dihydroxystearic acid a potential biomarker for the consumption of this food product. 9,10-dihydroxyoctadecanoic acid is a hydroxy-fatty acid formally derived from octacecanoic (stearic) acid by hydroxy substitution at positions 9 and 10. It is a dihydroxy monocarboxylic acid and a hydroxyoctadecanoic acid. It is a conjugate acid of a 9,10-dihydroxystearate. 9,10-Dihydroxystearic acid is a natural product found in Trypanosoma brucei and Apis cerana with data available.
Gabapentin
Gabapentin was originally developed as a chemical analogue of gamma-aminobutyric acid (GABA) to reduce the spinal reflex for the treatment of spasticity and was found to have anticonvulsant activity in various seizure models. In addition, it also displays antinociceptive activity in various animal pain models. Clinically, gabapentin is indicated as an add-on medication for the treatment of partial seizures, and neuropathic pain. It was also claimed to be beneficial in several other clinical disorders such as anxiety, bipolar disorder, and hot flashes. The possible mechanisms or targets involved in the multiple therapeutic actions of gabapentin have been actively studied. Since gabapentin was developed, several hypotheses had been proposed for its action mechanisms. They include selectively activating the heterodimeric GABA(B) receptors consisting of GABA(B1a) and GABA(B2) subunits, selectively enhancing the NMDA current at GABAergic interneurons, or blocking AMPA-receptor-mediated transmission in the spinal cord, binding to the L-alpha-amino acid transporter, activating ATP-sensitive K(+) channels, activating hyperpolarization-activated cation channels, and modulating Ca(2+) current by selectively binding to the specific binding site of [(3)H]gabapentin, the alpha(2)delta subunit of voltage-dependent Ca(2+) channels. Different mechanisms might be involved in different therapeutic actions of gabapentin. In this review, we summarized the recent progress in the findings proposed for the antinociceptive action mechanisms of gabapentin and suggest that the alpha(2)delta subunit of spinal N-type Ca(2+) channels is very likely the analgesic action target of gabapentin. (PMID: 16474201) [HMDB] Gabapentin was originally developed as a chemical analogue of gamma-aminobutyric acid (GABA) to reduce the spinal reflex for the treatment of spasticity and was found to have anticonvulsant activity in various seizure models. In addition, it also displays antinociceptive activity in various animal pain models. Clinically, gabapentin is indicated as an add-on medication for the treatment of partial seizures, and neuropathic pain. It was also claimed to be beneficial in several other clinical disorders such as anxiety, bipolar disorder, and hot flashes. The possible mechanisms or targets involved in the multiple therapeutic actions of gabapentin have been actively studied. Since gabapentin was developed, several hypotheses had been proposed for its action mechanisms. They include selectively activating the heterodimeric GABA(B) receptors consisting of GABA(B1a) and GABA(B2) subunits, selectively enhancing the NMDA current at GABAergic interneurons, or blocking AMPA-receptor-mediated transmission in the spinal cord, binding to the L-alpha-amino acid transporter, activating ATP-sensitive K(+) channels, activating hyperpolarization-activated cation channels, and modulating Ca(2+) current by selectively binding to the specific binding site of [(3)H]gabapentin, the alpha(2)delta subunit of voltage-dependent Ca(2+) channels. Different mechanisms might be involved in different therapeutic actions of gabapentin. In this review, we summarized the recent progress in the findings proposed for the antinociceptive action mechanisms of gabapentin and suggest that the alpha(2)delta subunit of spinal N-type Ca(2+) channels is very likely the analgesic action target of gabapentin. (PMID: 16474201). D018377 - Neurotransmitter Agents > D018683 - Excitatory Amino Acid Agents > D018691 - Excitatory Amino Acid Antagonists D002492 - Central Nervous System Depressants > D014149 - Tranquilizing Agents > D014151 - Anti-Anxiety Agents D002492 - Central Nervous System Depressants > D014149 - Tranquilizing Agents > D018692 - Antimanic Agents N - Nervous system > N02 - Analgesics > N02B - Other analgesics and antipyretics > N02BF - Gabapentinoids D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D014149 - Tranquilizing Agents D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents C78272 - Agent Affecting Nervous System > C29756 - Sedative and Hypnotic D002491 - Central Nervous System Agents > D000927 - Anticonvulsants D002491 - Central Nervous System Agents > D000700 - Analgesics
20-Hydroxyeicosatetraenoic acid
20-Hydroxyeicosatetraenoic acid (20-HETE) is a metabolite of arachidonic acid. Cytochrome P450 enzymes of the 4A and 4F families catalyze the omega-hydroxylation of arachidonic acid and produce 20-HETE. 20-HETE is a potent constrictor of renal, cerebral, and mesenteric arteries. The vasoconstrictor response to 20-HETE is associated with activation of protein kinase, Rho kinase, and the mitogen-activated protein (MAP) kinase pathway C. 20-HETE also increases intracellular Ca2+ by causing the depolarization of vascular smooth muscle membrane secondary to blocking the large-conductance Ca2+-activated K+-channels and by a direct effect on L-type Ca channels. Elevations in the production of 20-HETE mediate the myogenic response of skeletal, renal, and cerebral arteries to elevations in transmural pressure. There is an important interaction between nitric oxide (NO) and the formation of 20-HETE production. NO inhibits the formation of 20-HETE formation in renal and cerebral arteries. A fall in levels of 20-HETE contributes to the cyclic GMP-independent dilator effect of NO to activate the large-conductance Ca2+-activated K+-channels and to dilate the cerebral arteries (PMID: 16258232). Metabolite produced during NADPH dependent enzymatic oxidation of arachidonic acid. Potent vasoconstrictor [CCD]
11,12-Epoxyeicosatrienoic acid
11,12-Epoxyeicosatrienoic acid (CAS: 81276-02-0) is an epoxyeicosatrienoic acid (EET). Induction of CYP2C8 in native coronary artery endothelial cells by beta-naphthoflavone enhances the formation of 11,12-epoxyeicosatrienoic acid, as well as endothelium-derived hyperpolarizing factor-mediated hyperpolarization and relaxation. Transfection of coronary arteries with CYP2C8 antisense oligonucleotides resulted in decreased levels of CYP2C and attenuated the endothelium-derived hyperpolarizing factor-mediated vascular responses. Thus, a CYP-epoxygenase product is an essential component of the endothelium-derived hyperpolarizing factor-mediated relaxation in the porcine coronary artery, and CYP2C8 fulfills the criteria for the coronary endothelium-derived hyperpolarization factor synthase. The role of EETs in the regulation of the cerebral circulation has become more important since it was realized that EETs are produced in another specialized cell type of the brain, the astrocytes. It has become evident that EETs released from astrocytes may mediate cerebral functional hyperemia. Molecular and pharmacological evidence has shown that neurotransmitter release and spillover onto astrocytes can generate EETs. Since these EETs may reach the vasculature via astrocyte foot-processes, they have the same potential as their endothelial counterparts to hyperpolarize and dilate cerebral vessels. P450 enzymes contain heme in their catalytic domain and nitric oxide (NO) appears to bind to these heme moieties and block formation of P450 products, including EETs. Thus, there appears to be crosstalk between P450 enzymes and NO/NO synthase. The role of fatty acid metabolites and cerebral blood flow becomes even more complex in light of data demonstrating that cyclooxygenase products can act as substrates for P450 enzymes (PMID: 17494091, 17434916, 17406062, 17361113, 15581597, 11413051, 10519554). EETs function as autocrine and paracrine mediators. During inflammation, a large amount of arachidonic acid (AA) is released into the cellular milieu and cyclooxygenase enzymes convert this AA to prostaglandins that in turn sensitize pain pathways. However, AA is also converted into natural EETs by cytochrome P450 enzymes. Cytochrome P450 (CYP) epoxygenases convert arachidonic acid into four epoxyeicosatrienoic acid (EET) regioisomers, 5,6-, 8,9-, 11,12-, and 14,15-EET. EETs produce vascular relaxation by activating smooth muscle large-conductance Ca2+-activated K+ channels. In particular, 11,12-epoxy-5Z,8Z,14Z-eicosatrienoic acid has been shown to play a role in the recovery of depleted Ca2+ pools in cultured smooth muscle cells (PMID: 9368016). In addition, EETs have anti-inflammatory effects on blood vessels and in the kidney, promote angiogenesis, and protect ischemic myocardium and the brain. EET levels are typically regulated by soluble epoxide hydrolase (sEH), the major enzyme degrading EETs. Specifically, soluble epoxide hydrolase (sEH) converts EETs into dihydroxyeicosatrienoic acids. 11,12-EpETrE or 11,12-epoxy-5Z,8Z,14Z-eicosatrienoic acid is an epoxyeicosatrienoic acid or an EET derived from arachadonic acid. EETs function as autacrine and paracrine mediators. During inflammation, a large amount of arachidonic acid (AA) is released into the cellular milieu and cyclooxygenase enzymes convert this AA to prostaglandins that in turn sensitize pain pathways. However, AA is also converted to natural epoxyeicosatrienoic acids (EETs) by cytochrome P450 enzymes. Cytochrome P450 (CYP) epoxygenases convert arachidonic acid to four epoxyeicosatrienoic acid (EET) regioisomers, 5,6-, 8,9-, 11,12-, and 14,15-EET. EETs produce vascular relaxation by activating smooth muscle large-conductance Ca2+-activated K+ channels. In particular, 11,12-epoxy-5Z,8Z,14Z-eicosatrienoic acid has been show to play a role in the recovery of depleted Ca2+ pools in cultured smooth muscle cells (PMID: 9368016). In addition, EETs have antiinflammatory effects on blood vessels and in the kidney, promote angiogenesis, and protect ischemic myocardium and brain. EET levels are typically regulated by soluble epoxide hydrolase (sEH), the major enzyme degrading EETs. Specifically, soluble epoxide hydrolase (sEH) converts EETs to dihydroxyeicosatrienoic acids. [HMDB] D002317 - Cardiovascular Agents > D014665 - Vasodilator Agents
Phenylbutazone
A drug that has anti-inflammatory, antipyretic, and analgesic activities. It is especially effective in the treatment of ankylosing spondylitis. It also is useful in rheumatoid arthritis and Reiter's syndrome (investigational indication). Although phenylbutazone is effective in gouty arthritis, risk/benefit considerations indicate that this drug should not be employed for this disease. (From AMA Drug Evaluations Annual, 1994, p1822) M - Musculo-skeletal system > M02 - Topical products for joint and muscular pain > M02A - Topical products for joint and muscular pain > M02AA - Antiinflammatory preparations, non-steroids for topical use M - Musculo-skeletal system > M01 - Antiinflammatory and antirheumatic products > M01A - Antiinflammatory and antirheumatic products, non-steroids > M01AA - Butylpyrazolidines C78272 - Agent Affecting Nervous System > C241 - Analgesic Agent > C2198 - Nonnarcotic Analgesic D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D002491 - Central Nervous System Agents > D000700 - Analgesics CONFIDENCE standard compound; EAWAG_UCHEM_ID 3615 EAWAG_UCHEM_ID 3615; CONFIDENCE standard compound CONFIDENCE standard compound; INTERNAL_ID 1158 D000893 - Anti-Inflammatory Agents D018501 - Antirheumatic Agents
rofecoxib
M - Musculo-skeletal system > M01 - Antiinflammatory and antirheumatic products > M01A - Antiinflammatory and antirheumatic products, non-steroids > M01AH - Coxibs D018501 - Antirheumatic Agents > D000894 - Anti-Inflammatory Agents, Non-Steroidal > D016861 - Cyclooxygenase Inhibitors D004791 - Enzyme Inhibitors > D016861 - Cyclooxygenase Inhibitors > D052246 - Cyclooxygenase 2 Inhibitors C78272 - Agent Affecting Nervous System > C241 - Analgesic Agent > C2198 - Nonnarcotic Analgesic C274 - Antineoplastic Agent > C1742 - Angiogenesis Inhibitor > C80509 - COX-2 Inhibitor D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D002491 - Central Nervous System Agents > D000700 - Analgesics C471 - Enzyme Inhibitor > C1323 - Cyclooxygenase Inhibitor COVID info from COVID-19 Disease Map D000893 - Anti-Inflammatory Agents Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
Linoleic acid
Linoleic acid is a doubly unsaturated fatty acid, also known as an omega-6 fatty acid, occurring widely in plant glycosides. In this particular polyunsaturated fatty acid (PUFA), the first double bond is located between the sixth and seventh carbon atom from the methyl end of the fatty acid (n-6). Linoleic acid is an essential fatty acid in human nutrition because it cannot be synthesized by humans. It is used in the biosynthesis of prostaglandins (via arachidonic acid) and cell membranes (From Stedman, 26th ed). Linoleic acid is found to be associated with isovaleric acidemia, which is an inborn error of metabolism. Linoleic acid (LA) is an organic compound with the formula HOOC(CH2)7CH=CHCH2CH=CH(CH2)4CH3. Both alkene groups (−CH=CH−) are cis. It is a fatty acid sometimes denoted 18:2 (n-6) or 18:2 cis-9,12. A linoleate is a salt or ester of this acid.[5] Linoleic acid is a polyunsaturated, omega-6 fatty acid. It is a colorless liquid that is virtually insoluble in water but soluble in many organic solvents.[2] It typically occurs in nature as a triglyceride (ester of glycerin) rather than as a free fatty acid.[6] It is one of two essential fatty acids for humans, who must obtain it through their diet,[7] and the most essential, because the body uses it as a base to make the others. The word "linoleic" derives from Latin linum 'flax', and oleum 'oil', reflecting the fact that it was first isolated from linseed oil.
Arachidonic acid
Arachidonic acid is a polyunsaturated, essential fatty acid that has a 20-carbon chain as a backbone and four cis-double bonds at the C5, C8, C11, and C14 positions. It is found in animal and human fat as well as in the liver, brain, and glandular organs, and is a constituent of animal phosphatides. It is synthesized from dietary linoleic acid. Arachidonic acid mediates inflammation and the functioning of several organs and systems either directly or upon its conversion into eicosanoids. Arachidonic acid in cell membrane phospholipids is the substrate for the synthesis of a range of biologically active compounds (eicosanoids) including prostaglandins, thromboxanes, and leukotrienes. These compounds can act as mediators in their own right and can also act as regulators of other processes, such as platelet aggregation, blood clotting, smooth muscle contraction, leukocyte chemotaxis, inflammatory cytokine production, and immune function. Arachidonic acid can be metabolized by cytochrome p450 (CYP450) enzymes into 5,6-, 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acids (EETs), their corresponding dihydroxyeicosatrienoic acids (DHETs), and 20-hydroxyeicosatetraenoic acid (20-HETE). The production of kidney CYP450 arachidonic acid metabolites is altered in diabetes, pregnancy, hepatorenal syndrome, and in various models of hypertension, and it is likely that changes in this system contribute to the abnormalities in renal function that are associated with many of these conditions. Phospholipase A2 (PLA2) catalyzes the hydrolysis of the sn-2 position of membrane glycerophospholipids to liberate arachidonic acid (PMID: 12736897, 12736897, 12700820, 12570747, 12432908). The beneficial effects of omega-3 fatty acids are believed to be due in part to selective alteration of arachidonate metabolism that involves cyclooxygenase (COX) enzymes (PMID: 23371504). 9-Oxononanoic acid (9-ONA), one of the major products of peroxidized fatty acids, was found to stimulate the activity of phospholipase A2 (PLA2), the key enzyme to initiate the arachidonate cascade and eicosanoid production (PMID: 23704812). Arachidonate lipoxygenase (ALOX) enzymes metabolize arachidonic acid to generate potent inflammatory mediators and play an important role in inflammation-associated diseases (PMID: 23404351). Essential fatty acid. Constituent of many animal phospholipids Arachidonic acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=506-32-1 (retrieved 2024-07-15) (CAS RN: 506-32-1). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Arachidonic acid is an essential fatty acid and a major constituent of biomembranes. Arachidonic acid is an essential fatty acid and a major constituent of biomembranes.
12,13-DiHOME
12,13-DHOME (CAS: 263399-35-5), also known as 12,13-dihydroxy-9-octadecenoic acid or 12,13-DiHOME, is the epoxide hydrolase metabolite of the leukotoxin 12,13-EpOME. 12,13-EpOME acts as a protoxin, with the corresponding epoxide hydrolase 12,13-DHOME specifically exerting toxicity. Both the EpOME and the DHOME are shown to have neutrophil chemotactic activity. 12,13-DHOME suppress the neutrophil respiratory burst by a mechanism distinct from that of respiratory burst inhibitors such as cyclosporin H or lipoxin A4, which inhibit multiple aspects of neutrophil activation. 12,13-DHOME is a derivative of the linoleic acid diol that has been reported to be toxic in human tissue preparations. 12,13-DHOME is a naturally occurring proliferator-activated receptor (PPAR) gamma2 ligand, which stimulates adipocytes and inhibits osteoblast differentiation (PMID: 17435320, 12021203, 12127265). 12,13-DHOME is the epoxide hydrolase metabolite of the leukotoxin12,13-EpOME. 12,13-EpOMEs act as a protoxin, with the corresponding epoxide hydrolase 12,13-DiHOME specifically exerting toxicity. Both the EpOME and the DiHOME are shown to have neutrophil chemotactic activity. 12,13-DiHOME suppress the neutrophil respiratory burst by a mechanism distinct from that of respiratory burst inhibitors such as cyclosporin H or lipoxin A4,which inhibit multiple aspects of neutrophil activation. 12,13-DHOME is a derivative of linoleic acid diol that have been reported to be toxic in humans tissue preparations. 12,13-DHOME is a naturally occurring proliferator-activated receptor (PPAR) gamma2 ligand, which stimulates adipocytes and inhibits osteoblast differentiation. (PMID: 17435320, 12021203, 12127265) [HMDB]
Docosahexaenoic acid
Docosahexaenoic acid (DHA) is an omega-3 essential fatty acid. Chemically, DHA is a carboxylic acid with a 22-carbon chain and six cis- double bonds with the first double bond located at the third carbon from the omega end. DHA is most often found in fish oil. It is a major fatty acid in sperm and brain phospholipids, especially in the retina. Dietary DHA can reduce the level of blood triglycerides in humans, which may reduce the risk of heart disease (Wikipedia). Docosahexaenoic acid is found to be associated with isovaleric acidemia, which is an inborn error of metabolism. Extensively marketed as a dietary supplement in Japan [DFC]. Doconexent is found in many foods, some of which are mung bean, fruit preserve, northern pike, and snapper. COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Docosahexaenoic Acid (DHA) is an omega-3 fatty acid abundantly present brain and retina. It can be obtained directly from fish oil and maternal milk.
Urea
Urea is a highly soluble organic compound formed in the liver from ammonia produced by the deamination of amino acids. It is the principal end product of protein catabolism and constitutes about one half of the total urinary solids. Urea is formed in a cyclic pathway known simply as the urea cycle. In this cycle, amino groups donated by ammonia and L-aspartate are converted to urea. Urea is essentially a waste product; it has no physiological function. It is dissolved in blood (in humans in a concentration of 2.5 - 7.5 mmol/liter) and excreted by the kidney in the urine. In addition, a small amount of urea is excreted (along with sodium chloride and water) in human sweat. Urea is found to be associated with primary hypomagnesemia, which is an inborn error of metabolism. B - Blood and blood forming organs > B05 - Blood substitutes and perfusion solutions > B05B - I.v. solutions > B05BC - Solutions producing osmotic diuresis Formulation aid. Cattle feed supplement. Urea is found in many foods, some of which are globe artichoke, hickory nut, hard wheat, and cherry tomato. D - Dermatologicals > D02 - Emollients and protectives > D02A - Emollients and protectives > D02AE - Carbamide products C78275 - Agent Affecting Blood or Body Fluid > C448 - Diuretic > C49187 - Osmotic Diuretic Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry. Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
Morpholine
Morpholine is a permitted (FDA) in edible coatings for fruit and vegetables. Morpholine is a food contaminant arising from its use as a boiler water additive Morpholine is a common additive, in ppm concentrations, for pH adjustment in both fossil fuel and nuclear power plant steam systems. Morpholine is used because its volatility is about the same as water, so once it is added to the water, its concentration becomes distributed rather evenly in both the water and steam phases. Its pH adjusting qualities then become distributed throughout the steam plant to provide corrosion protection. Morpholine is often used in conjunction with low concentrations of hydrazine or ammonia to provide a comprehensive all-volatile treatment chemistry for corrosion protection for the steam systems of such plants. Morpholine decomposes reasonably slowly in the absence of oxygen even at the high temperatures and pressures in these steam systems. Morpholine is an organic chemical compound having the chemical formula O(CH2CH2)2NH. This heterocycle, pictured at right, features both amine and ether functional groups. Because of the amine, morpholine is a base; its conjugate acid is called morpholinium. For example, when morpholine is neutralized by hydrochloric acid, one obtains the salt morpholinium chloride. Morpholine is widely used in organic synthesis. For example, it is a building block in the preparation of the antibiotic linezolid and the anticancer agent gefitinib (Iressa) Permitted (FDA) in edible coatings for fruit and vegetables. Food contaminant arising from its use as a boiler water additive CONFIDENCE standard compound; INTERNAL_ID 8365
Zafirlukast
Zafirlukast is an oral leukotriene receptor antagonist (LTRA) for the maintenance treatment of asthma, often used in conjunction with an inhaled steroid and/or long-acting bronchodilator. It is available as a tablet and is usually dosed twice daily. Another leukotriene receptor antagonist is montelukast (Singulair), which is usually taken just once daily. Zafirlukast blocks the action of the cysteinyl leukotrienes on the CysLT1 receptors, thus reducing constriction of the airways, build-up of mucus in the lungs and inflammation of the breathing passages. R - Respiratory system > R03 - Drugs for obstructive airway diseases > R03D - Other systemic drugs for obstructive airway diseases > R03DC - Leukotriene receptor antagonists D019141 - Respiratory System Agents > D018927 - Anti-Asthmatic Agents > D020024 - Leukotriene Antagonists D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006727 - Hormone Antagonists C78273 - Agent Affecting Respiratory System > C29712 - Anti-asthmatic Agent
12-HETE
12-Hydroxyeicosatetraenoic acid (CAS: 71030-37-0), also known as 12-HETE, is an eicosanoid, a 5-lipoxygenase metabolite of arachidonic acid. 5-Lipoxygenase (LO)-derived leukotrienes are involved in inflammatory glomerular injury. LO product 12-HETE is associated with the pathogenesis of hypertension and may mediate angiotensin II and TGFbeta induced mesangial cell abnormality in diabetic nephropathy. 12-HETE is markedly elevated in the psoriatic lesions. 12-HETE is a vasoconstrictor eicosanoid that contributes to high blood pressure in (renovascular) hypertension and pregnancy-induced hypertension. A significant percentage of patients suffering from a selective increase in plasma LDL cholesterol (type IIa hyperlipoproteinemia) exhibits increased platelet reactivity. This includes enhanced platelet responsiveness against a variety of platelet-stimulating agents ex vivo and enhanced arachidonic acid metabolism associated with increased generation of arachidonic acid metabolites such as 12-HETE, and secretion of platelet-storage products (PMID: 7562532, 12480795, 17361113, 8498970, 1333255, 2119633). 12-HETE is a highly selective ligand used to label mu-opioid receptors in both membranes and tissue sections. The 12-S-HETE analog has been reported to augment tumour cell metastatic potential through activation of protein kinase C. 12-HETE has a diversity of biological actions and is generated by a number of tissues including the renal glomerulus and the vasculature. 12-HETE is one of the six monohydroxy fatty acids produced by the non-enzymatic oxidation of arachidonic acid. 12-HETE is a neuromodulator that is synthesized during ischemia. Its neuronal effects include attenuation of calcium influx and glutamate release as well as inhibition of AMPA receptor (AMPA-R) activation. 12-HETE is found to be associated with peroxisomal biogenesis defect and Zellweger syndrome, which are inborn errors of metabolism.
3-HODE + 9-HODE
13-Hydroxyoctadecadienoic acid (13-HODE) (CAS: 18104-45-5), also known as 13(S)-hydroxy-9Z,11E-octadecadienoic acid or 13(S)-HODE, is the major lipoxygenation product synthesized in the body from linoleic acid. 13-HODE prevents cell adhesion to endothelial cells and can inhibit cancer metastasis. 13-HODE synthesis is enhanced by cyclic AMP. gamma-Linolenic acid, a desaturated metabolite of linoleic acid, causes substantial stimulation of 13-HODE synthesis. A fall in gamma-linolenic acid synthesis with age may be related to the age-related fall in 13-HODE formation (PMID: 9561154). 13-HODE is considered an intermediate in linoleic acid metabolism. It is generated from 13(S)-HPODE via the enzyme lipoxygenase (EC 1.13.11.12). 13-HODE has been shown to be involved in cell proliferation and differentiation in a number of systems. 13-HODE is found to be produced by prostate tumours and cell lines and researchers believe that there is a link between linoleic acid metabolism and the development or progression of prostate cancer (PMID: 9367845).
13-HOTE
13-HOTE is a biologically active lipid molecule produced due to altered intestinal lipid metabolism indicative of Alox15 activity. (PMID: 18258795) [HMDB] 13-HOTE is a biologically active lipid molecule produced due to altered intestinal lipid metabolism indicative of Alox15 activity. (PMID: 18258795).
13-L-Hydroperoxylinoleic acid
(9z,11e)-(13s)-13-hydroperoxyoctadeca-9,11-dienoate, also known as 13s-hydroperoxy-9z,11e-octadecadienoic acid or 13(S)-hpode, belongs to lineolic acids and derivatives class of compounds. Those are derivatives of lineolic acid. Lineolic acid is a polyunsaturated omega-6 18 carbon long fatty acid, with two CC double bonds at the 9- and 12-positions. Thus, (9z,11e)-(13s)-13-hydroperoxyoctadeca-9,11-dienoate is considered to be an octadecanoid lipid molecule (9z,11e)-(13s)-13-hydroperoxyoctadeca-9,11-dienoate is practically insoluble (in water) and a weakly acidic compound (based on its pKa). (9z,11e)-(13s)-13-hydroperoxyoctadeca-9,11-dienoate can be synthesized from octadeca-9,11-dienoic acid (9z,11e)-(13s)-13-hydroperoxyoctadeca-9,11-dienoate can also be synthesized into pinellic acid and 13(S)-HPODE methyl ester (9z,11e)-(13s)-13-hydroperoxyoctadeca-9,11-dienoate can be found in a number of food items such as lingonberry, lemon thyme, watermelon, and agave, which makes (9z,11e)-(13s)-13-hydroperoxyoctadeca-9,11-dienoate a potential biomarker for the consumption of these food products (9z,11e)-(13s)-13-hydroperoxyoctadeca-9,11-dienoate can be found primarily in blood. 13-L-Hydroperoxylinoleic acid (13(S)-HPODE) is one of the primary products of the major polyunsaturated fatty acids (linoleic acid and arachidonic acid) from the 15-lipoxygenase pathway (EC 1.13.11.31). 13(S)-HPODE is a rather unstable metabolite and is rapidly metabolized to more stable secondary products such as diverse forms of hydroxy fatty acids (via reduction of the hydroperoxy group), alkoxy radicals (via homolytic cleavage of the peroxy group), forms of dihydro(pero)xy fatty acids (via lipoxygenase-catalysed double and triple oxygenation), or epoxy leukotrienes (via a hydrogen abstraction from a doubly allylic methylene group and a homolytic cleavage of the hydroperoxy group) (PMID: 9082450). D009676 - Noxae > D016877 - Oxidants > D010545 - Peroxides
15-HETE
15-HETE is a hydroxyeicosatetraenoic acid. Hydroxyeicosatetraenoic acids (HETEs) are formed by the 5-, 12-, and 15-lipoxygenase (LO) pathways. The 5- and 12-LO products are mainly proinflammatory in the skin whereas the main 15-LO product 15-HETE has antiinflammatory capacities. In vitro, 15-HETE has been shown to inhibit LTB4 formation, 12-HETE formation, and specifically inhibits the neutrophil chemotactic effect of LTB4. The inhibition of LTB4 formation is probably due to modulation of the 5-LO because no changes in PGE2 formation have been determined. In vivo, 15-HETE inhibits LTB4-induced erythema and edema, and reduces LTB4 in the synovial fluid of carragheenan-induced experimental arthritis in dogs. 15-HETE also has some immunomodulatory effects. It inhibits the mixed lymphocyte reaction, induces generation of murine cytotoxic suppressor T cells, and it decreases interferon production by murine lymphoma cells. Furthermore, IL-4 and IL-13 have recently been shown to be potent activators of the 15-LO in mononuclear cells (PMID: 11104340). 15(S)-HETE is found to be associated with Zellweger syndrome, which is an inborn error of metabolism. 15(S)-HETE is a hydroxyeicosatetraenoic acid. Hydroxyeicosatetraenoic acids (HETEs) are formed by the 5-, 12- and 15-lipoxygenase (LO) pathways. 5- and 12-LO products are mainly proinflammatory in the skin whereas the main 15-LO product 15-HETE has antiinflammatory capacities. In vitro 15-HETE has been shown to inhibit LTB4 formation, 12-HETE formation and specifically inhibits the neutrophil chemotactic effect of LTB4. The inhibition of LTB4 formation is probably due to modulation of the 5-LO because no changes in PGE2 formation have been determined. In vivo, 15-HETE inhibits LTB4-induced erythema and edema, and reduces LTB4 in the synovial fluid of carragheenan-induced experimental arthritis in dogs. 15-HETE has also some immunomodulatory effects. It inhibits the mixed lymphocyte reaction, induces generation of murine cytotoxic suppressor T cells, and it decreases interferon production by murine lymphoma cells. Furthermore, IL-4 and IL-13 have recently been shown to be potent activators of the 15-LO in mononuclear cells. (PMID: 11104340) [HMDB] 15(S)-HETE. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=54845-95-3 (retrieved 2024-07-10) (CAS RN: 54845-95-3). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).
9,10-DiHOME
9,10-Dihydroxy-12-octadecenoic acid (CAS: 263399-34-4), also known as 9,10-DHOME, is a derivative of linoleic acid diol and has been reported to be toxic in humans tissue preparations. 9,10-DHOME is a naturally occurring proliferator-activated receptor (PPAR) gamma2 ligand, which stimulates adipocytes and inhibits osteoblast differentiation. 9,10-DHOME is the epoxide hydrolase metabolite of the leukotoxin 9,10-EpOME. 9,10-EpOME act as a protoxin, with the corresponding epoxide hydrolase metabolite 9,10-DHOME, specifically exerting toxicity. Both 9,10-EpOME and 9,10-DHOME are shown to have neutrophil chemotactic activity. 9,10-DHOME suppresses the neutrophil respiratory burst by a mechanism distinct from that of respiratory burst inhibitors such as cyclosporin H or lipoxin A4, which inhibit multiple aspects of neutrophil activation (PMID: 12021203, 12127265, 17435320). 9,10-DHOME is found in fruits and can be isolated from the seeds of Cucurbita pepo. 9,10-DHOME is a derivative of linoleic acid diol that have been reported to be toxic in humans tissue preparations. 9,10-DHOME is a naturally occurring proliferator-activated receptor (PPAR) gamma2 ligand, which stimulates adipocytes and inhibits osteoblast differentiation. 9,10-DHOME is the epoxide hydrolase metabolite of the leukotoxin 9,10--EpOME. 9,10-EpOMEs act as a protoxin, with the corresponding epoxide hydrolase 9,10-DiHOME specifically exerting toxicity. Both the 9,10-EpOME and the 9,10-DiHOME are shown to have neutrophil chemotactic activity. 9,10-DiHOME suppress the neutrophil respiratory burst by a mechanism distinct from that of respiratory burst inhibitors such as cyclosporin H or lipoxin A4,which inhibit multiple aspects of neutrophil activation. (PMID: 12021203, 12127265, 17435320) [HMDB]
9,10-Epoxyoctadecenoic acid
9,10-Epoxyoctadecenoic acid (9,10-EOA) is a peroxidation product of linoleic acid (LA). 9,10-EOA is a naturally occurring component of oxidized low density lipoprotein (LDL), the level of which increases with aging, atherosclerosis, and rheumatoid arthritis, perhaps due to an increase in 15-lipoxygenase and free oxygen radicals. 9,10-EOA is a proliferator-activated receptors (PPAR) gamma2 ligand, that is antiosteogenic without stimulating adipocyte differentiation. Studies in dogs suggest that 9,10-EOA has toxic cardiovascular effects. (PMID: 12665667, 12021203, 10667371).
Prostaglandin J2
Prostaglandin J2 (PGJ2) is an endogenous product of inflammation in humans. It induces neuronal death and the accumulation of ubiquitinated proteins into distinct aggregates. It may play a role in neurodegenerative disorders inducing a chain of events that culminates in neuronal cell death. An altered expression of enzymes in PGJ2 synthesis may represent a novel pathogenic mechanism in human obesity. The peroxisome proliferator-activated receptor gamma (PPARγ) has a fundamental role in glucose homeostasis and adipocyte differentiation. Besides linoleate, linolenate and arachidonate, the most notable PPAR ligand is 15-deoxy-delta12-14-prostaglandin J2, a natural derivative of prostaglandin D2 and PGJ2. It is therefore plausible that the production of 15d-PGJ2 within adipose tissue may act as an endogenous mediator of adipocyte differentiation. PGJ2 disrupts the cytoskeleton in neuronal cells. This cyclopentenone prostaglandin triggered endoplasmic reticulum (ER) collapse and the redistribution of ER proteins, such as calnexin and catechol-O-methyltransferase, into a large centrosomal aggregate containing ubiquitinated proteins and alpha-synuclein. The PGJ2-dependent cytoskeletal rearrangement paralleled the development of the large centrosomal aggregate. Supporting a mechanism by which, upon PGJ2 treatment, cytoskeleton/ER collapse coincides with the relocation of ER proteins, other potentially neighboring proteins, and ubiquitinated proteins into centrosomal aggregates. Development of these large perinuclear aggregates is associated with disruption of the microtubule/ER network. This aberrant protein deposition, triggered by a product of inflammation, may be common to other compounds that disrupt microtubules and induce protein aggregation, such as MPP+ and rotenone, found to be associated with neurodegeneration. Many neurodegenerative disorders, such as Parkinson disease, exhibit inclusion bodies containing ubiquitinated proteins. Concentrations of PGJ2 in biofluids have not been established, since this prostaglandin is further metabolized into delta12-PGJ2, and 15-deoxy-delta12,14-PGJ2. (PMID: 16737963, 16842938, 16774923)Prostaglandins are eicosanoids. The eicosanoids consist of the prostaglandins (PGs), thromboxanes (TXs), leukotrienes (LTs), and lipoxins (LXs). The PGs and TXs are collectively identified as prostanoids. Prostaglandins were originally shown to be synthesized in the prostate gland, thromboxanes from platelets (thrombocytes), and leukotrienes from leukocytes, hence the derivation of their names. All mammalian cells except erythrocytes synthesize eicosanoids. These molecules are extremely potent, able to cause profound physiological effects at very dilute concentrations. All eicosanoids function locally at the site of synthesis, through receptor-mediated G-protein linked signalling pathways. Prostaglandin J2 (PGJ2) is an endogenous product of inflammation in humans. It induces neuronal death and the accumulation of ubiquitinated proteins into distinct aggregates. It may play a role in neurodegenerative disorders inducing a chain of events that culminates in neuronal cell death. An altered expression of enzymes in PGJ2 synthesis may represent a novel pathogenic mechanism in human obesity. The peroxisome proliferator-activated receptor gamma (PPARγ) has a fundamental role in glucose homeostasis and adipocyte differentiation. Besides linoleate, linolenate and arachidonate, the most notable PPAR ligand is 15-deoxy-delta12-14-prostaglandin J2, a natural derivative of prostaglandin D2 and PGJ2. It is therefore plausible that the production of 15d-PGJ2 within adipose tissue may act as an endogenous mediator of adipocyte differentiation. PGJ2 disrupts the cytoskeleton in neuronal cells. This cyclopentenone prostaglandin triggered endoplasmic reticulum (ER) collapse and the redistribution of ER proteins, such as calnexin and catechol-O-methyltransferase, into a large centrosomal aggregate containing ubiquitinated proteins and alpha-synuclein. The PGJ2-dependent cytoskeletal rearrangement paralleled the development of the large centrosomal aggregate. Supporting a mechanism by which, upon PGJ2 treatment, cytoskeleton/ER collapse coincides with the relocation of ER proteins, other potentially neighboring proteins, and ubiquitinated proteins into centrosomal aggregates. Development of these large perinuclear aggregates is associated with disruption of the microtubule/ER network. This aberrant protein deposition, triggered by a product of inflammation, may be common to other compounds that disrupt microtubules and induce protein aggregation, such as MPP+ and rotenone, found to be associated with neurodegeneration. Many neurodegenerative disorders, such as Parkinson disease, exhibit inclusion bodies containing ubiquitinated proteins. Concentrations of PGJ2 in biofluids have not been established, since this prostaglandin is further metabolized into delta12-PGJ2, and 15-deoxy-delta12,14-PGJ2. (PMID: 16737963, 16842938, 16774923) D000970 - Antineoplastic Agents
11,12-DiHETrE
11,12-DiHETrE is a Cytochrome P450 (P450) eicosanoid. Arachidonic acid may be oxygenated by cytochrome P450 in several ways. Epoxidation of the double bonds leads to the regio- and enantioselective formation of four epoxyeicosatrienoic acids (EETs), which are hydrolyzed by epoxide hydrolase to vicinal diols (DHETs). 11,12-DiHETrE excretion is increased in healthy pregnant women compared with nonpregnant female volunteers, and increased even further in patients with pregnancy-induced hypertension (PIH). The physiological significance of arachidonic acid epoxides has been debated and it is unknown whether they play a role in pregnancy and parturition. Vasodilative effects, inhibition of cyclooxygenase, or inhibition of platelet aggregation by EETs have been observed only at micromolar concentrations. On the other hand, effects on the stimulus-secretion coupling during hormone release have been found in the nanomolar and picomolar range. (PMID: 9440131, 2198572) [HMDB] 11,12-DiHETrE is a Cytochrome P450 (P450) eicosanoid. Arachidonic acid may be oxygenated by cytochrome P450 in several ways. Epoxidation of the double bonds leads to the regio- and enantioselective formation of four epoxyeicosatrienoic acids (EETs), which are hydrolyzed by epoxide hydrolase to vicinal diols (DHETs). 11,12-DiHETrE excretion is increased in healthy pregnant women compared with nonpregnant female volunteers, and increased even further in patients with pregnancy-induced hypertension (PIH). The physiological significance of arachidonic acid epoxides has been debated and it is unknown whether they play a role in pregnancy and parturition. Vasodilative effects, inhibition of cyclooxygenase, or inhibition of platelet aggregation by EETs have been observed only at micromolar concentrations. On the other hand, effects on the stimulus-secretion coupling during hormone release have been found in the nanomolar and picomolar range. (PMID: 9440131, 2198572).
14,15-Epoxy-5,8,11-eicosatrienoic acid
14,15-epoxy-5,8,11-eicosatrienoic acid is an epoxyeicosatrienoic acid (EET), a metabolite of arachidonic acid. The P450 eicosanoids epoxyeicosatrienoic acids (EETs) are endogenous lipid mediators produced by P450 epoxygenases and metabolized through multiple pathways including soluble epoxide hydrolase (sEH). The cytochrome P-450 (P450) monooxygenase pathway includes enzymes of the CYP1A, CYP2B, CYP2C, CYP2E, and CYP2J subfamilies that catalyze the formation of four regioisomeric products, 5,6-, 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid. EETs are produced in brain and perform important biological functions, including protection from ischemic injury. Both light flashes and direct glial stimulation produce vasodilatation mediated by EETs. EETs may be involved in the development of hypertension and endothelial dysfunction in DOCA-salt rats, but not in excessive collagen deposition or electrophysiological abnormalities. EETs have vasodilator and natriuretic effect. Blockade of EET formation is associated with salt-sensitive hypertension. Four regioisomeric cis-EET are primary products of arachidonic acid metabolism by cytochrome P450 epoxygenases. Upon hydration by soluble epoxide hydrolase (sEH), EET are metabolized to dihydroxyeicosatrienoic acids (DHET). These hydration products are more stable and less biologically active than EETs. (PMID: 17494091, 17468203, 17434916, 17406062, 17361113, 15581597). 14,15-epoxy-5,8,11-eicosatrienoic acid is an epoxyeicosatrienoic acid (EET), a metabolite of arachidonic acid. D002317 - Cardiovascular Agents > D014665 - Vasodilator Agents
8,9-Epoxyeicosatrienoic acid
8,9-Epoxyeicosatrienoic acid is an epoxyeicosatrienoic acid eicosanoid, a metabolite of arachidonic acid. The P450 epoxyeicosatrienoic acids (EETs) are endogenous lipid mediators produced by P450 epoxygenases and metabolized through multiple pathways including soluble epoxide hydrolase (sEH). The cytochrome P-450 (P450) monooxygenase pathway includes enzymes of the CYP1A, CYP2B, CYP2C, CYP2E, and CYP2J subfamilies that catalyze the formation of four regioisomeric products, 5,6-, 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid. EETs are produced in brain and perform important biological functions, including protection from ischemic injury. Both light flashes and direct glial stimulation produce vasodilatation mediated by EETs. EETs may be involved in the development of hypertension and endothelial dysfunction in DOCA-salt rats, but not in excessive collagen deposition or electrophysiological abnormalities. EETs have vasodilator and natriuretic effect. Blockade of EET formation is associated with salt-sensitive hypertension. Four regioisomeric cis-EET are primary products of arachidonic acid metabolism by cytochrome P450 epoxygenases. Upon hydration by soluble epoxide hydrolase (sEH), EET are metabolized to dihydroxyeicosatrienoic acids (DHET). These hydration products are more stable and less biologically active than EETs. (PMID: 17494091, 17468203, 17434916, 17406062, 17361113, 15581597) [HMDB] 8,9-Epoxyeicosatrienoic acid is an epoxyeicosatrienoic acid eicosanoid, a metabolite of arachidonic acid. The P450 epoxyeicosatrienoic acids (EETs) are endogenous lipid mediators produced by P450 epoxygenases and metabolized through multiple pathways including soluble epoxide hydrolase (sEH). The cytochrome P-450 (P450) monooxygenase pathway includes enzymes of the CYP1A, CYP2B, CYP2C, CYP2E, and CYP2J subfamilies that catalyze the formation of four regioisomeric products, 5,6-, 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid. EETs are produced in brain and perform important biological functions, including protection from ischemic injury. Both light flashes and direct glial stimulation produce vasodilatation mediated by EETs. EETs may be involved in the development of hypertension and endothelial dysfunction in DOCA-salt rats, but not in excessive collagen deposition or electrophysiological abnormalities. EETs have vasodilator and natriuretic effect. Blockade of EET formation is associated with salt-sensitive hypertension. Four regioisomeric cis-EET are primary products of arachidonic acid metabolism by cytochrome P450 epoxygenases. Upon hydration by soluble epoxide hydrolase (sEH), EET are metabolized to dihydroxyeicosatrienoic acids (DHET). These hydration products are more stable and less biologically active than EETs. (PMID: 17494091, 17468203, 17434916, 17406062, 17361113, 15581597). D002317 - Cardiovascular Agents > D014665 - Vasodilator Agents
5,6-Epoxy-8,11,14-eicosatrienoic acid
5,6-Epoxy-8,11,14-eicosatrienoic acid is an Epoxyeicosatrienoic acid (EET), a metabolite of arachidonic acid. The epoxyeicosatrienoic acids (EETs) are endogenous lipid mediators produced by P450 epoxygenases and metabolized through multiple pathways including soluble epoxide hydrolase (sEH). The cytochrome P-450 (P450) monooxygenase pathway includes enzymes of the CYP1A, CYP2B, CYP2C, CYP2E, and CYP2J subfamilies that catalyze the formation of four regioisomeric products, 5,6-, 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid. EETs are produced in brain and perform important biological functions, including protection from ischemic injury. Both light flashes and direct glial stimulation produce vasodilatation mediated by EETs. EETs may be involved in the development of hypertension and endothelial dysfunction in DOCA-salt rats, but not in excessive collagen deposition or electrophysiological abnormalities. EETs have vasodilator and natriuretic effect. Blockade of EET formation is associated with salt-sensitive hypertension. (PMID: 17494091, 17468203, 17434916, 17406062, 17361113) [HMDB] 5,6-Epoxy-8,11,14-eicosatrienoic acid is an Epoxyeicosatrienoic acid (EET), a metabolite of arachidonic acid. The epoxyeicosatrienoic acids (EETs) are endogenous lipid mediators produced by P450 epoxygenases and metabolized through multiple pathways including soluble epoxide hydrolase (sEH). The cytochrome P-450 (P450) monooxygenase pathway includes enzymes of the CYP1A, CYP2B, CYP2C, CYP2E, and CYP2J subfamilies that catalyze the formation of four regioisomeric products, 5,6-, 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid. EETs are produced in brain and perform important biological functions, including protection from ischemic injury. Both light flashes and direct glial stimulation produce vasodilatation mediated by EETs. EETs may be involved in the development of hypertension and endothelial dysfunction in DOCA-salt rats, but not in excessive collagen deposition or electrophysiological abnormalities. EETs have vasodilator and natriuretic effect. Blockade of EET formation is associated with salt-sensitive hypertension. (PMID: 17494091, 17468203, 17434916, 17406062, 17361113).
14,15-DiHETrE
14,15-DiHETrE is a Cytochrome P450 (P450) eicosanoid. Eicosanoids generated from arachidonic acid metabolism by cytochrome P450 (P450) enzymes are important autocrine and paracrine factors that have diverse biological functions. P450 eicosanoids are involved in the regulation of vascular tone, renal tubular transport, cardiac contractility, cellular proliferation, and inflammation. Regulation of P450 eicosanoid levels is determined by many factors, including the induction or repression of the P450 enzymes responsible for their formation. Fibrate drugs are part of a diverse group of compounds known as peroxisome proliferators, which also include herbicides and phthalate ester plasticizers. Peroxisome proliferators act via peroxisome proliferator-activated receptor (PPAR ). This receptor is a member of the PPAR nuclear receptor family that also consists of the PPAR and PPAR isoforms. PPAR is mainly expressed in the heart, liver, and kidney, whereas the expression of PPAR is predominantly in the adipose tissue. The biological role of PPAR as a lipid sensor has been well established. 14,15-DiHETrE is a potent activators of PPAR and PPAR . shown to induce the binding of PPAR to a peroxisome proliferator response element (PPRE). Furthermore, 14,15-DiHETrE behaves like peroxisome proliferators in that is able to alter apoA-I and apoA-II mRNA expression. 14,15-DiHETrE is the most potent PPARalpha activator in a COS-7 cell expression system producing a 12-fold increase in PPARalpha-mediated luciferase activity. (PMID: 17431031, 16113065) [HMDB] 14,15-DiHETrE is a Cytochrome P450 (P450) eicosanoid. Eicosanoids generated from arachidonic acid metabolism by cytochrome P450 (P450) enzymes are important autocrine and paracrine factors that have diverse biological functions. P450 eicosanoids are involved in the regulation of vascular tone, renal tubular transport, cardiac contractility, cellular proliferation, and inflammation. Regulation of P450 eicosanoid levels is determined by many factors, including the induction or repression of the P450 enzymes responsible for their formation. Fibrate drugs are part of a diverse group of compounds known as peroxisome proliferators, which also include herbicides and phthalate ester plasticizers. Peroxisome proliferators act via peroxisome proliferator-activated receptor (PPAR). This receptor is a member of the PPAR nuclear receptor family that also consists of the PPAR and PPAR isoforms. PPAR is mainly expressed in the heart, liver, and kidney, whereas the expression of PPAR is predominantly in the adipose tissue. The biological role of PPAR as a lipid sensor has been well established. 14,15-DiHETrE is a potent activators of PPAR and PPAR, shown to induce the binding of PPAR to a peroxisome proliferator response element (PPRE). Furthermore, 14,15-DiHETrE behaves like peroxisome proliferators in that is able to alter apoA-I and apoA-II mRNA expression. 14,15-DiHETrE is the most potent PPARalpha activator in a COS-7 cell expression system producing a 12-fold increase in PPARalpha-mediated luciferase activity. (PMID: 17431031, 16113065).
8,9-DiHETrE
8,9-DiHETrE is a Cytochrome P450 (P450) eicosanoid. Eicosanoids generated from arachidonic acid (AA) metabolism by cytochrome P450 (P450) enzymes are important autocrine and paracrine factors that have diverse biological functions. P450 eicosanoids are involved in the regulation of vascular tone, renal tubular transport, cardiac contractility, cellular proliferation, and inflammation. P450converts AA to 8,9- dihydroxyeicosatrienoic acid. This enzymatic pathway was first described in liver; however, it is now clear that AA can be metabolized by P450 in many tissues including the pituitary gland, eye, kidney, adrenal gland, and blood vessels. (PMID: 17431031, 11700990) [HMDB] 8,9-DiHETrE is a Cytochrome P450 (P450) eicosanoid. Eicosanoids generated from arachidonic acid (AA) metabolism by cytochrome P450 (P450) enzymes are important autocrine and paracrine factors that have diverse biological functions. P450 eicosanoids are involved in the regulation of vascular tone, renal tubular transport, cardiac contractility, cellular proliferation, and inflammation. P450converts AA to 8,9- dihydroxyeicosatrienoic acid. This enzymatic pathway was first described in liver; however, it is now clear that AA can be metabolized by P450 in many tissues including the pituitary gland, eye, kidney, adrenal gland, and blood vessels. (PMID: 17431031, 11700990).
9,10-Epoxystearic acid
9,10-epoxystearate, also known as 18:0(9ep) or 9,10-epoxystearic acid, 14c-acid, belongs to lineolic acids and derivatives class of compounds. Those are derivatives of lineolic acid. Lineolic acid is a polyunsaturated omega-6 18 carbon long fatty acid, with two CC double bonds at the 9- and 12-positions. Thus, 9,10-epoxystearate is considered to be an octadecanoid lipid molecule. 9,10-epoxystearate is practically insoluble (in water) and a weakly acidic compound (based on its pKa). 9,10-epoxystearate can be found in a number of food items such as garden cress, silver linden, european chestnut, and soft-necked garlic, which makes 9,10-epoxystearate a potential biomarker for the consumption of these food products.
9,12,13-TriHOME
9,12,13-TriHOME is a trihydroxyoctadecenoic acid metabolite of linoleic acid, one of the major fatty acids found in lipids. Vascular tissue converts various polyunsaturated fatty acids to monohydroxy and trihydroxy metabolites derived from hydroperoxides which may be involved in regulating prostaglandin synthesis. The absolute amounts of 9,12,13-TriHOME varies considerably from one species to another. There are several possible mechanisms for the formation of esterified oxygenated polyunsaturated fatty acids: oxygenated and then incorporated into lipids, not well incorporated into either vascular endothelial or smooth muscle cells, or could accumulated in lipids either due to autoxidation in vivo or to the action of an enzyme similar to Iipoxygenase. (PMID: 3997883, 6414520) [HMDB] 9,12,13-TriHOME is a trihydroxyoctadecenoic acid metabolite of linoleic acid, one of the major fatty acids found in lipids. Vascular tissue converts various polyunsaturated fatty acids to monohydroxy and trihydroxy metabolites derived from hydroperoxides which may be involved in regulating prostaglandin synthesis. The absolute amounts of 9,12,13-TriHOME varies considerably from one species to another. There are several possible mechanisms for the formation of esterified oxygenated polyunsaturated fatty acids: oxygenated and then incorporated into lipids, not well incorporated into either vascular endothelial or smooth muscle cells, or could accumulated in lipids either due to autoxidation in vivo or to the action of an enzyme similar to Iipoxygenase. (PMID: 3997883, 6414520). Pinellic acid is a trihydroxyoctadecenoic acid with hydroxy groups at positions C-9, -12, and 13, and an E (cis) double bond at position 10. It has a role as an adjuvant and an anti-inflammatory agent. It is functionally related to a 13(S)-HPODE. Pinellic acid is a natural product found in Pinellia ternata, Bupleurum falcatum, and other organisms with data available. A trihydroxyoctadecenoic acid with hydroxy groups at positions C-9, -12, and 13, and an E (cis) double bond at position 10.
9,10,13-TriHOME
9,10,13-TriHOME is a trihydroxyoctadecenoic acid metabolite of linoleic acid, one of the major fatty acids found in lipids. Vascular tissue converts various polyunsaturated fatty acids to monohydroxy and trihydroxy metabolites derived from hydroperoxides which may be involved in regulating prostaglandin synthesis. [HMDB] 9,10,13-TriHOME is a trihydroxyoctadecenoic acid metabolite of linoleic acid, one of the major fatty acids found in lipids. Vascular tissue converts various polyunsaturated fatty acids to monohydroxy and trihydroxy metabolites derived from hydroperoxides which may be involved in regulating prostaglandin synthesis.
Lauroyl-CoA
Lauroyl-CoA is a substrate for Protein FAM34A. [HMDB]. Lauroyl-CoA is found in many foods, some of which are apricot, hazelnut, other soy product, and thistle. Lauroyl-CoA is a substrate for Protein FAM34A.
(5Z,9E,14Z)-(8xi,11R,12S)-11,12-epoxy-8-hydroxyicosa-5,9,14-trienoic Acid
(5Z,9E,14Z)-(8xi,11R,12S)-11,12-epoxy-8-hydroxyicosa-5,9,14-trienoic Acid, also known as Hepoxilin a3 or 8-EH-2, is classified as a member of the Hepoxilins. Hepoxilins are eicosanoids containing an oxirane group attached to the fatty acyl chain. (5Z,9E,14Z)-(8xi,11R,12S)-11,12-epoxy-8-hydroxyicosa-5,9,14-trienoic Acid is considered to be practically insoluble (in water) and acidic
Pregnanediol
Pregnanediol is an endogenous human testosterone metabolite. It can be detected in the urine of adults and newborns in variable concentrations. Pregnanediol is abnormally elevated in patients with cytochrome P450 (P450C17, steroid 17alpha-monooxygenase, EC 1.14.99.9) oxidoreductase deficiency (Antley-Bixler syndrome, PORD, OMIM: 201750). Antley-Bixler syndrome is a multiple congenital malformation syndrome with craniosynostosis, radiohumeral synostosis, femoral bowing, choanal atresia or stenosis, joint contractures, urogenital abnormalities, and often early death. An assay of urinary pregnanediol excretion provides an accurate indication of outcome in threatened miscarriage in 74 - 93\\\% percent of cases. Pregnanediol is one of the most important markers of pregnenolone administration, which can potentially be abused by athletes to maintain an equilibration of the steroidal environment after sex steroids administrations. Patients with recurrent vulvovaginal candidiasis have significantly lower levels of urinary pregnanediol (PMID: 126703, 16608896, 16906539, 1191599, 2905284, 15763596, 10360427, 11159778, 16687200). Pregnanediol excretion is low in women with suspected placental insufficiency and in women with uterine fibroma. Pregnanediol levels can change in endocrine disturbances such as hirsutism or Cushings syndrome, depending on the stage of the disease. Pregnanediol has been tried as a more reliable compound to measure in screening of urinary steroids when suspecting doping, due to its not significant isotopic fractionation that could lead to false positive results in anti-doping testing. 13C-Enrichment caused by a diet change might be a reason of concern in athletes that move around between places and might have a considerable change of diet between competitions. In contrast to the results obtained with the carbon isotopic ratio, the profiling of urinary testosterone/epitestosterone (T/E) ratios is found to be unaffected by a diet change (PMID: 16338181, 5172227, 13636945, 14440289). Pregnanediol is an endogenous human testosterone metabolite. It can be detected in adults and newborns urine in variable concentrations. Pregnanediol is abnormally elevated in patients with cytochrome P450 (P450C17, steroid 17alpha-monooxygenase, EC 1.14.99.9) oxidoreductase deficiency (Antley-Bixler syndrome, PORD, OMIM 201750). Antley-Bixler syndrome is a multiple congenital malformation syndrome with craniosynostosis, radiohumeral synostosis, femoral bowing, choanal atresia or stenosis, joint contractures, urogenital abnormalities and, often, early death. An assay of urinary pregnanediol excretion provides an accurate indication of outcome in threatened abortion in 74 - 93\\\% per cent of cases. Pregnanediol is one of the most important markers of pregnenolone administration, which can potentially be abused by athletes to maintain an equilibration of the steroidal environment after sex steroids administrations. Patients with recurrent vulvovaginal candidiasis have significantly lower levels of urinary pregnanediol. (PMID: 126703, 16608896, 16906539, 1191599, 2905284, 15763596, 10360427, 11159778, 16687200) [HMDB] C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones Pregnanediol is the major metabolite of progesterone and can be excreted via urine. Pregnanediol offers an indirect way to measure progesterone levels in vivo[1].
20-Carboxy-leukotriene B4
20-Carboxyleukotriene B4 is an omega-oxidized metabolite of leukotriene B4 (LTB4). Neutrophil microsomes are known to oxidize 20-hydroxy-LTB4 (20-OH-LTB4) to its 20-oxo and 20-carboxy derivatives in the presence of NADPH. This activity has been ascribed to LTB4 omega-hydroxylase (cytochrome P-450LTB omega). Leukotriene B4 release from polymorphonuclear granulocytes of severely burned patients was reduced as compared to healthy donor cells. This decrease is due to an enhanced conversion of LTB4 into the 20-hydroxy- and 20-carboxy-metabolites and further to a decreased LTB4-synthesis. LTB4 is the major metabolite in neutrophil polymorphonuclear leukocytes. Leukotrienes are metabolites of arachidonic acid derived from the action of 5-LO (5-lipoxygenase). The immediate product of 5-LO is LTA4 (leukotriene A4), which is enzymatically converted into either LTB4 (leukotriene B4) by LTA4 hydrolase or LTC4 (leukotriene C4) by LTC4 synthase. The regulation of leukotriene production occurs at various levels, including expression of 5-LO, translocation of 5-LO to the perinuclear region and phosphorylation to either enhance or inhibit the activity of 5-LO. Biologically active LTB4 is metabolized by w-oxidation carried out by specific cytochrome P450s (CYP4F) followed by beta-oxidation from the w-carboxy position and after CoA ester formation. Other specific pathways of leukotriene metabolism include the 12-hydroxydehydrogenase/ 15-oxo-prostaglandin-13-reductase that form a series of conjugated diene metabolites that have been observed to be excreted into human urine. Metabolism of LTC4 occurs by sequential peptide cleavage reactions involving a gamma-glutamyl transpeptidase that forms LTD4 (leukotriene D4) and a membrane-bound dipeptidase that converts LTD4 into LTE4 (leukotriene E4) before w-oxidation. These metabolic transformations of the primary leukotrienes are critical for termination of their biological activity, and defects in expression of participating enzymes may be involved in specific genetic disease. (PMID 17623009, 7633595, 2155225, 3039534)Leukotrienes are eicosanoids. The eicosanoids consist of the prostaglandins (PGs), thromboxanes (TXs), leukotrienes (LTs), and lipoxins (LXs). The PGs and TXs are collectively identified as prostanoids. Prostaglandins were originally shown to be synthesized in the prostate gland, thromboxanes from platelets (thrombocytes), and leukotrienes from leukocytes, hence the derivation of their names. All mammalian cells except erythrocytes synthesize eicosanoids. These molecules are extremely potent, able to cause profound physiological effects at very dilute concentrations. All eicosanoids function locally at the site of synthesis, through receptor-mediated G-protein linked signalling pathways.
Dienestrol
Dienestrol is a synthetic, non-steroidal estrogen. It is an estrogen receptor agonist. Estrogens work partly by increasing a normal clear discharge from the vagina and making the vulva and urethra healthy. Using or applying an estrogen relieves or lessens: dryness and soreness in the vagina, itching, redness, or soreness of the vulva. Conditions that are treated with vaginal estrogens include a genital skin condition (vulvar atrophy), inflammation of the vagina (atrophic vaginitis), and inflammation of the urethra (atrophic urethritis). G - Genito urinary system and sex hormones > G03 - Sex hormones and modulators of the genital system > G03C - Estrogens > G03CC - Estrogens, combinations with other drugs G - Genito urinary system and sex hormones > G03 - Sex hormones and modulators of the genital system > G03C - Estrogens > G03CB - Synthetic estrogens, plain D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones > D004967 - Estrogens C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C483 - Therapeutic Estrogen
Norethindrone acetate
C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone D012102 - Reproductive Control Agents > D003270 - Contraceptive Agents
Peucedanin
Peucedanin, also known as 2-isopropyl-3-methoxy-7h-furo[3,2-g]chromen-7-one or 4-methoxy-5-isopropylfuro(2,3:6,7)coumarin, is a member of the class of compounds known as psoralens. Psoralens are organic compounds containing a psoralen moiety, which consists of a furan fused to a chromenone to for 7H-furo[3,2-g]chromen-7-one. Peucedanin is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Peucedanin can be found in carrot, chervil, and wild carrot, which makes peucedanin a potential biomarker for the consumption of these food products. D011838 - Radiation-Sensitizing Agents > D017319 - Photosensitizing Agents > D011564 - Furocoumarins
Juvenile hormone III
Juvenile hormone III is a member of the juvenile hormone family of compounds that is the methyl ester of (2E,6E)-9-[(2R)-3,3-dimethyloxiran-2-yl]-3,7-dimethylnona-2,6-dienoic acid. Juvenile hormone III is found in most insect species. It is an epoxide, an enoate ester, a fatty acid methyl ester and a juvenile hormone.
3-Amino-4-hydroxybenzoic acid
3-Amino-4-hydroxybenzoic acid is an endogenous metabolite.
1-(2-Hydroxy-5-(trifluoromethyl)phenyl)-5-(trifluoromethyl)-1H-benzo[d]imidazol-2(3H)-one
Thiourea
Thiourea is an organic compound of carbon, nitrogen, sulfur and hydrogen, with the formula CSN2H4 or (NH2)2CS. It is similar to urea, except that the oxygen atom is replaced by a sulfur atom. The properties of urea and thiourea differ significantly because of the relative electronegativities of sulfur and oxygen. Thiourea is a versatile reagent in organic synthesis. "Thioureas" refers to a broad class of compounds with the general structure (R1R2N)(R3R4N)C=S. Thioureas are related to thioamides, e.g. RC(S)NR2, where R is methyl, ethyl, etc. Thiourea is prohibited from use in food. Industrial uses of thiourea include production of flame retardant resins, and vulcanization accelerators. Thiourea is used as an auxiliary agent in diazo paper (light-sensitive photocopy paper) and almost all other types of copy paper. It is also used to tone silver-gelatin photographic prints. The liquid silver cleaning product TarnX is essentially a solution of thiourea. A leaching agent for gold leaching and silver leaching can be created by selectively oxidizing thiourea, bypassing the steps of cyanide use and smelting. Another common application for use of thiourea is a common sulfur source for making semiconductor cadmium sulfide nanoparticle. Thiourea is a planar molecule. The C=S bond distance is 1.60±0.1 for a wide range of derivatives. This narrow range indicates that the C=S bond is insensitive to the nature of the substitutent. Thus, the thioamide, which is similar to an amide group, is difficult to perturb. Thiourea reduces peroxides to the corresponding diols. The intermediate of the reaction is an unstable epidioxide which can only be identified at -100 °C. Epidioxide is similar to epoxide except with two oxygen atoms. This intermediate reduces to diol by thiourea D019995 - Laboratory Chemicals > D007202 - Indicators and Reagents Prohibited from use in food
Benzo[e]pyrene
5,6-DHET
5,6-DHET is an epoxide intermediate in the oxygenation of arachidonic acid by hepatic monooxygenases pathway. 5,6-DHET is the hydrolysis metabolite of cis-5(6)Epoxy-cis-8,11,14-eicosatrienoic acid by epoxide hydrolases. Many drugs, chemicals, and endogenous compounds are oxygenated in mammalian tissues and in some instances reactive and potentially toxic or carcinogenic epoxides are formed. Naturally occurring olefins may also be oxygenated by mammalian enzymes. The most well known are lipoxygenases and microsomal cytochrome P-450-linked monooxygenases. The epoxides may be chemically labile or may be enzymatically hydrolyzed. When arene or olefinic epoxides are formed by microsomal P-450-linked monooxygenases, they are often rapidly converted to less reactive trans-diols through the action of microsomal epoxide hydrolases. (PMID: 6801052, 6548162) [HMDB] 5,6-DHET is an epoxide intermediate in the oxygenation of arachidonic acid by hepatic monooxygenases pathway. 5,6-DHET is the hydrolysis metabolite of cis-5(6)Epoxy-cis-8,11,14-eicosatrienoic acid by epoxide hydrolases. Many drugs, chemicals, and endogenous compounds are oxygenated in mammalian tissues and in some instances reactive and potentially toxic or carcinogenic epoxides are formed. Naturally occurring olefins may also be oxygenated by mammalian enzymes. The most well known are lipoxygenases and microsomal cytochrome P-450-linked monooxygenases. The epoxides may be chemically labile or may be enzymatically hydrolyzed. When arene or olefinic epoxides are formed by microsomal P-450-linked monooxygenases, they are often rapidly converted to less reactive trans-diols through the action of microsomal epoxide hydrolases. (PMID: 6801052, 6548162).
15H-11,12-EETA
15H-11,12-EETA is an epoxyeicosatrienoic acid (EET). The role of EETs in regulation of the cerebral circulation has become more important, since it was realized that EETs are produced in another specialized cell type of the brain, the astrocytes. It has become evident that EETs released from astrocytes may mediate cerebral functional hyperemia. Molecular and pharmacological evidence hve shown that neurotransmitter release and spillover onto astrocytes can generate EETs. Since these EETs may reach the vasculature via astrocyte foot-processes, they have the same potential as their endothelial counterparts to hyperpolarize and dilate cerebral vessels. P450 enzymes contain heme in their catalytic domain and nitric oxide (NO) appears to bind to these heme moieties and block formation of P450 products, including EETs. Thus, there appears to be crosstalk between P450 enzymes and NO/NO synthase. The role of fatty acid metabolites and cerebral blood flow becomes even more complex in light of data demonstrating that cyclooxygenase products can act as substrates for P450 enzymes. (PMID: 17494091, 17468203, 17434916, 17406062, 17361113, 15581597, 11413051, 10519554, 11893556) [HMDB] 15H-11,12-EETA is an epoxyeicosatrienoic acid (EET). The role of EETs in regulation of the cerebral circulation has become more important, since it was realized that EETs are produced in another specialized cell type of the brain, the astrocytes. It has become evident that EETs released from astrocytes may mediate cerebral functional hyperemia. Molecular and pharmacological evidence hve shown that neurotransmitter release and spillover onto astrocytes can generate EETs. Since these EETs may reach the vasculature via astrocyte foot-processes, they have the same potential as their endothelial counterparts to hyperpolarize and dilate cerebral vessels. P450 enzymes contain heme in their catalytic domain and nitric oxide (NO) appears to bind to these heme moieties and block formation of P450 products, including EETs. Thus, there appears to be crosstalk between P450 enzymes and NO/NO synthase. The role of fatty acid metabolites and cerebral blood flow becomes even more complex in light of data demonstrating that cyclooxygenase products can act as substrates for P450 enzymes. (PMID: 17494091, 17468203, 17434916, 17406062, 17361113, 15581597, 11413051, 10519554, 11893556).
11,12,15-THETA
11,12,15-trihydroxyeicosatrienoic acid (11,12,15-THETA) is a metabolite of the 15-lipoxygenase (15-LO) pathway of arachidonic acid (AA). 11,12,15-THETA is an endothelium-derived relaxing factor. Acetylcholine stimulates AA release from membrane phospholipids of vascular endothelial cells (ECs). AA is released from phosphatidylcholine (PC) and phosphatidylethanolamine (PE) by phospholipase A2 (PLA2), or from phosphatidylinositol (PI) by phospholipase C (PLC) pathway. The diacylglycerol (DAG) lipase can convert DAG into 2-arachidonoylglycerol from which free AA can be released by monoacylglycerol (MAG) lipase or fatty acid amidohydrolase (FAAH). 11,12,15-THETA mediates the acetylcholine-induced vaso-relaxation, via activation of the K+ channels to hyperpolarize the smooth muscle membrane and induce relaxation. (PMID: 12907422, 16024567, 15388505, 14622984) [HMDB] 11,12,15-trihydroxyeicosatrienoic acid (11,12,15-THETA) is a metabolite of the 15-lipoxygenase (15-LO) pathway of arachidonic acid (AA). 11,12,15-THETA is an endothelium-derived relaxing factor. Acetylcholine stimulates AA release from membrane phospholipids of vascular endothelial cells (ECs). AA is released from phosphatidylcholine (PC) and phosphatidylethanolamine (PE) by phospholipase A2 (PLA2), or from phosphatidylinositol (PI) by phospholipase C (PLC) pathway. The diacylglycerol (DAG) lipase can convert DAG into 2-arachidonoylglycerol from which free AA can be released by monoacylglycerol (MAG) lipase or fatty acid amidohydrolase (FAAH). 11,12,15-THETA mediates the acetylcholine-induced vaso-relaxation, via activation of the K+ channels to hyperpolarize the smooth muscle membrane and induce relaxation. (PMID: 12907422, 16024567, 15388505, 14622984).
Benzo[a]pyrene-4,5-oxide
This compound belongs to the family of Chrysenes. These are compounds containing the polyaromatic chrysene moiety, which consists of a benzene ring fused to a phenanthrene ring system to form Benzo[a]phenanthrene. D009676 - Noxae > D002273 - Carcinogens
2-Chloro-5-nitro-N-phenylbenzamide
CONFIDENCE standard compound; INTERNAL_ID 929; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4257; ORIGINAL_PRECURSOR_SCAN_NO 4255 CONFIDENCE standard compound; INTERNAL_ID 929; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3923; ORIGINAL_PRECURSOR_SCAN_NO 3921 CONFIDENCE standard compound; INTERNAL_ID 929; DATASET 20200303_ENTACT_RP_MIX508; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 4307; ORIGINAL_PRECURSOR_SCAN_NO 4305 CONFIDENCE standard compound; INTERNAL_ID 929; DATASET 20200303_ENTACT_RP_MIX500; DATA_PROCESSING MERGING RMBmix ver. 0.2.7; DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0; ORIGINAL_ACQUISITION_NO 3920; ORIGINAL_PRECURSOR_SCAN_NO 3918 GW9662 is a potent and selective PPARγ antagonist with an IC50 of 3.3 nM, showing 10 and 1000-fold selectivity over PPARα and PPARδ, respectively.
14R,15S-EpETrE
14R,15S-EpETrE is the dominant extracellular metabolite of epoxygenase products of arachidonic acid released from human luteinised granulosa cells. Epoxyeicosatrienoic acids (EpETrEs) have been reported recently having vasodilatory effects and a role of P-450-dependent arachidonic acid monooxygenase metabolites is suggested in vasoregulation. The physiological role of this compound has not been totally established, although in other tissues EpETrEs are mainly involved in hormone production and in the vascular and renal systems. Some studies have implicated epoxygenase metabolites of arachidonic acid in the control of steroidogenesis in luteinised granulosa cells. (PMID: 12749593, 12361727, 1650001) [HMDB] 14R,15S-EpETrE is the dominant extracellular metabolite of epoxygenase products of arachidonic acid released from human luteinised granulosa cells. Epoxyeicosatrienoic acids (EpETrEs) have been reported recently having vasodilatory effects and a role of P-450-dependent arachidonic acid monooxygenase metabolites is suggested in vasoregulation. The physiological role of this compound has not been totally established, although in other tissues EpETrEs are mainly involved in hormone production and in the vascular and renal systems. Some studies have implicated epoxygenase metabolites of arachidonic acid in the control of steroidogenesis in luteinised granulosa cells. (PMID: 12749593, 12361727, 1650001). D002317 - Cardiovascular Agents > D014665 - Vasodilator Agents
3a,20b-Pregnanediol
C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone Complex steroid in human breast milk that inhibits hepatic glucuronyl transferase (PMID: 4246186). Complex steroid in human breast milk that inhibits hepatic glucuronyl transferase (4246186) [HMDB] D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones Pregnanediol is the major metabolite of progesterone and can be excreted via urine. Pregnanediol offers an indirect way to measure progesterone levels in vivo[1].
13-HPODE(1-)
13-HPODE(1-) is also known as 13-Hydroperoxy-(9Z,11E)-octadecadienoate. 13-HPODE(1-) is considered to be practically insoluble (in water) and acidic
5,8,11-Eicosatrienoic acid, 14,15-dihydroxy-, (5Z,8Z,11Z)-
(Z)-7-((2S,3R)-3-((2Z,5Z)-Undeca-2,5-dienyl)oxiran-2-yl)hept-5-enoic acid
FA 22:6
Chemical was purchased from CAY 90310 (Lot. 0458708-4); Diagnostic ions: 327.1, 283.2, 229.7,191.1, 177.2 COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials CONFIDENCE standard compound; INTERNAL_ID 296 Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Docosahexaenoic Acid (DHA) is an omega-3 fatty acid abundantly present brain and retina. It can be obtained directly from fish oil and maternal milk.
FA 20:4
Chemical was purchased from CAY 90010 (Lot. 0447254-11); Diagnostic ions:303.1, 259.2, 205.2 Acquisition and generation of the data is financially supported in part by CREST/JST. relative retention time with respect to 9-anthracene Carboxylic Acid is 1.604 relative retention time with respect to 9-anthracene Carboxylic Acid is 1.605 relative retention time with respect to 9-anthracene Carboxylic Acid is 1.603 COVID info from WikiPathways Annotation level-2 Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Arachidonic acid is an essential fatty acid and a major constituent of biomembranes. Arachidonic acid is an essential fatty acid and a major constituent of biomembranes.
urea
B - Blood and blood forming organs > B05 - Blood substitutes and perfusion solutions > B05B - I.v. solutions > B05BC - Solutions producing osmotic diuresis D - Dermatologicals > D02 - Emollients and protectives > D02A - Emollients and protectives > D02AE - Carbamide products C78275 - Agent Affecting Blood or Body Fluid > C448 - Diuretic > C49187 - Osmotic Diuretic Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry. Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
gabapentin
D018377 - Neurotransmitter Agents > D018683 - Excitatory Amino Acid Agents > D018691 - Excitatory Amino Acid Antagonists D002492 - Central Nervous System Depressants > D014149 - Tranquilizing Agents > D014151 - Anti-Anxiety Agents D002492 - Central Nervous System Depressants > D014149 - Tranquilizing Agents > D018692 - Antimanic Agents N - Nervous system > N02 - Analgesics > N02B - Other analgesics and antipyretics > N02BF - Gabapentinoids D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D014149 - Tranquilizing Agents D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents C78272 - Agent Affecting Nervous System > C29756 - Sedative and Hypnotic D002491 - Central Nervous System Agents > D000927 - Anticonvulsants D002491 - Central Nervous System Agents > D000700 - Analgesics CONFIDENCE standard compound; EAWAG_UCHEM_ID 2561
Arachidonic acid
A long-chain fatty acid that is a C20, polyunsaturated fatty acid having four (Z)-double bonds at positions 5, 8, 11 and 14. COVID info from WikiPathways Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Arachidonic acid is an essential fatty acid and a major constituent of biomembranes. Arachidonic acid is an essential fatty acid and a major constituent of biomembranes.
gabapentin
D018377 - Neurotransmitter Agents > D018683 - Excitatory Amino Acid Agents > D018691 - Excitatory Amino Acid Antagonists D002492 - Central Nervous System Depressants > D014149 - Tranquilizing Agents > D014151 - Anti-Anxiety Agents D002492 - Central Nervous System Depressants > D014149 - Tranquilizing Agents > D018692 - Antimanic Agents N - Nervous system > N02 - Analgesics > N02B - Other analgesics and antipyretics > N02BF - Gabapentinoids D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D014149 - Tranquilizing Agents D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents C78272 - Agent Affecting Nervous System > C29756 - Sedative and Hypnotic D002491 - Central Nervous System Agents > D000927 - Anticonvulsants D002491 - Central Nervous System Agents > D000700 - Analgesics CONFIDENCE standard compound; INTERNAL_ID 1678 CONFIDENCE standard compound; INTERNAL_ID 4114 CONFIDENCE Reference Standard (Level 1)
13-HoTrE
A hydroxyoctadecatrienoic acid that consists of 9Z,11E,15Z-octadecatrienoic acid bearing an additional 13-hydroxy substituent. CONFIDENCE standard compound; NATIVE_RUN_ID STD_neg_MSMS_1min0099.mzML; PROCESSING averaging of repeated ion fragments at 30.0 eV within 5 ppm window [MS, MS:1000575, mean of spectra, ] CONFIDENCE standard compound; NATIVE_RUN_ID STD_neg_MSMS_1min0099.mzML; PROCESSING averaging of repeated ion fragments at 20.0 eV within 5 ppm window [MS, MS:1000575, mean of spectra, ] CONFIDENCE standard compound; NATIVE_RUN_ID STD_neg_MSMS_1min0099.mzML; PROCESSING averaging of repeated ion fragments at 10.0 eV within 5 ppm window [MS, MS:1000575, mean of spectra, ] CONFIDENCE standard compound; NATIVE_RUN_ID QExHF03_NM_0001341.mzML; PROCESSING averaging of repeated ion fragments at 30.0 eV within 5 ppm window [MS, MS:1000575, mean of spectra, ] CONFIDENCE standard compound; NATIVE_RUN_ID QExHF03_NM_0001341.mzML; PROCESSING averaging of repeated ion fragments at 20.0 eV within 5 ppm window [MS, MS:1000575, mean of spectra, ] CONFIDENCE standard compound; NATIVE_RUN_ID QExHF03_NM_0001341.mzML; PROCESSING averaging of repeated ion fragments at 10.0 eV within 5 ppm window [MS, MS:1000575, mean of spectra, ] CONFIDENCE standard compound; NATIVE_RUN_ID QExHF03_NM_0001341.mzML; PROCESSING averaging of repeated ion fragments at 40.0 NCE within 5 ppm window [MS, MS:1000575, mean of spectra, ] CONFIDENCE standard compound; NATIVE_RUN_ID QExHF03_NM_0001341.mzML; PROCESSING averaging of repeated ion fragments at 30.0 NCE within 5 ppm window [MS, MS:1000575, mean of spectra, ] CONFIDENCE standard compound; NATIVE_RUN_ID QExHF03_NM_0001341.mzML; PROCESSING averaging of repeated ion fragments at 20.0 NCE within 5 ppm window [MS, MS:1000575, mean of spectra, ]
zafirlukast
R - Respiratory system > R03 - Drugs for obstructive airway diseases > R03D - Other systemic drugs for obstructive airway diseases > R03DC - Leukotriene receptor antagonists D019141 - Respiratory System Agents > D018927 - Anti-Asthmatic Agents > D020024 - Leukotriene Antagonists D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006727 - Hormone Antagonists C78273 - Agent Affecting Respiratory System > C29712 - Anti-asthmatic Agent
phenylbutazone
M - Musculo-skeletal system > M02 - Topical products for joint and muscular pain > M02A - Topical products for joint and muscular pain > M02AA - Antiinflammatory preparations, non-steroids for topical use M - Musculo-skeletal system > M01 - Antiinflammatory and antirheumatic products > M01A - Antiinflammatory and antirheumatic products, non-steroids > M01AA - Butylpyrazolidines A member of the class of pyrazolidines that is 1,2-diphenylpyrazolidine-3,5-dione carrying a butyl group at the 4-position. C78272 - Agent Affecting Nervous System > C241 - Analgesic Agent > C2198 - Nonnarcotic Analgesic D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D002491 - Central Nervous System Agents > D000700 - Analgesics D000893 - Anti-Inflammatory Agents D018501 - Antirheumatic Agents
urea
B - Blood and blood forming organs > B05 - Blood substitutes and perfusion solutions > B05B - I.v. solutions > B05BC - Solutions producing osmotic diuresis A carbonyl group with two C-bound amine groups. The commercially available fertilizer has an analysis of 46-0-0 (N-P2O5-K2O). D - Dermatologicals > D02 - Emollients and protectives > D02A - Emollients and protectives > D02AE - Carbamide products C78275 - Agent Affecting Blood or Body Fluid > C448 - Diuretic > C49187 - Osmotic Diuretic Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry. Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
Peucedanin
A member of the class of furanocoumarins that is furo[3,2-g]chromen-7-one, bearing additional isopropyl and methoxy substituents at positions 2 and 3 respectively. D011838 - Radiation-Sensitizing Agents > D017319 - Photosensitizing Agents > D011564 - Furocoumarins Origin: Plant, Coumarins
3-Amino-4-hydroxybenzoic acid
3-Amino-4-hydroxybenzoic acid is an endogenous metabolite.
12-Hete
A HETE that is icosa-5,8,10,14-tetraenoic acid substituted by a hydroxy group at position 12. It is a metabolite of arachidonic acid. A HETE having a (12S)-hydroxy group and (5Z)-, (8Z)-, (10E)- and (14Z)-double bonds.
Vernolic acid
A monounsaturated epoxy fatty acid composed of cis-9-octadecenoic acid having a 12,13-epoxy group.
Prostaglandin J2
A member of the class of prostaglandins J that consists of prosta-5,9,13-trien-1-oic acid substituted by an oxo group at position 11 and a hydroxy group at position 15 (the 5Z,13E,15S stereoisomer). D000970 - Antineoplastic Agents
Pregnanediol
C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C1636 - Therapeutic Steroid Hormone D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones Pregnanediol is the major metabolite of progesterone and can be excreted via urine. Pregnanediol offers an indirect way to measure progesterone levels in vivo[1].
Cognac oil
An octadecadienoic acid in which the two double bonds are at positions 9 and 12 and have Z (cis) stereochemistry. COVID info from PDB, Protein Data Bank, WikiPathways Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
Uniphat A60
Methyl palmitate, an acaricidal compound occurring in Lantana camara, inhibits phagocytic activity and immune response. Methyl palmitate also posseses anti-inflammatory and antifibrotic effects[1][2][3]. Methyl palmitate, an acaricidal compound occurring in Lantana camara, inhibits phagocytic activity and immune response. Methyl palmitate also posseses anti-inflammatory and antifibrotic effects[1][2][3].
A3925_SIGMA
COVID info from WikiPathways Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Arachidonic acid is an essential fatty acid and a major constituent of biomembranes. Arachidonic acid is an essential fatty acid and a major constituent of biomembranes.
Hyanit
B - Blood and blood forming organs > B05 - Blood substitutes and perfusion solutions > B05B - I.v. solutions > B05BC - Solutions producing osmotic diuresis D - Dermatologicals > D02 - Emollients and protectives > D02A - Emollients and protectives > D02AE - Carbamide products C78275 - Agent Affecting Blood or Body Fluid > C448 - Diuretic > C49187 - Osmotic Diuretic Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry. Urea is a powerful protein denaturant via both direct and indirect mechanisms[1]. A potent emollient and keratolytic agent[2]. Used as a diuretic agent. Blood urea nitrogen (BUN) has been utilized to evaluate renal function[3]. Widely used in fertilizers as a source of nitrogen and is an important raw material for the chemical industry.
epoxide
Caryophyllene oxide is an epoxide. It has a role as a metabolite. Caryophyllene oxide is a natural product found in Xylopia emarginata, Eupatorium altissimum, and other organisms with data available. See also: Cannabis sativa subsp. indica top (part of). A natural product found in Cupania cinerea. Caryophyllene oxide, isolated from from Hymenaea courbaril, possesses analgesic and anti-inflammatory activity[1]. Caryophyllene oxide, isolated from from Hymenaea courbaril, possesses analgesic and anti-inflammatory activity[1].
DHSA
9,10-dihydroxyoctadecanoic acid is a hydroxy-fatty acid formally derived from octacecanoic (stearic) acid by hydroxy substitution at positions 9 and 10. It is a dihydroxy monocarboxylic acid and a hydroxyoctadecanoic acid. It is a conjugate acid of a 9,10-dihydroxystearate. 9,10-Dihydroxystearic acid is a natural product found in Trypanosoma brucei and Apis cerana with data available. A hydroxy-fatty acid formally derived from stearic acid by hydroxy substitution at positions 9 and 10.
Dienestrol
G - Genito urinary system and sex hormones > G03 - Sex hormones and modulators of the genital system > G03C - Estrogens > G03CC - Estrogens, combinations with other drugs G - Genito urinary system and sex hormones > G03 - Sex hormones and modulators of the genital system > G03C - Estrogens > G03CB - Synthetic estrogens, plain D006730 - Hormones, Hormone Substitutes, and Hormone Antagonists > D006728 - Hormones > D004967 - Estrogens C147908 - Hormone Therapy Agent > C548 - Therapeutic Hormone > C483 - Therapeutic Estrogen
Doconexent
A docosahexaenoic acid having six cis-double bonds at positions 4, 7, 10, 13, 16 and 19. COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Docosahexaenoic Acid (DHA) is an omega-3 fatty acid abundantly present brain and retina. It can be obtained directly from fish oil and maternal milk.
Lauroyl-CoA
A medium-chain fatty acyl-CoA that results from the formal condensation of the thiol group of coenzyme A with the carboxy group of lauric (dodecanoic) acid.
13(S)-HPODE
D009676 - Noxae > D016877 - Oxidants > D010545 - Peroxides The (S)-enantiomer of 13-HPODE
isoleukotoxin
An optically active form of vernolic acid having (12R,13S)-configuration. D004791 - Enzyme Inhibitors
13(S)-HODE
An HODE (hydroxyoctadecadienoic acid) in which the double bonds are at positions 9 and 11 (E and Z geometry, respectively) and the hydroxy group is at position 13 (with S-configuration).
GW 9662
GW9662 is a potent and selective PPARγ antagonist with an IC50 of 3.3 nM, showing 10 and 1000-fold selectivity over PPARα and PPARδ, respectively.
12,13-DHOA
A DiHOME obtained by formal dihydroxylation of the 12,13-double bond of octadeca-9,12-dienoic acid (the 9Z-geoisomer).
