Gene Association: PCYT2
UniProt Search:
PCYT2 (PROTEIN_CODING)
Function Description: phosphate cytidylyltransferase 2, ethanolamine
found 34 associated metabolites with current gene based on the text mining result from the pubmed database.
Helenalin
Helenalin is a sesquiterpene lactone that is 3,3a,4,4a,7a,8,9,9a-octahydroazuleno[6,5-b]furan-2,5-dione substituted by a hydroxy group at position 4, methyl groups at positions 4a and 8 and a methylidene group at position 3 (the 3aS,4S,4aR,7aR,8R,9aR stereoisomer). It has a role as an anti-inflammatory agent, an antineoplastic agent, a plant metabolite and a metabolite. It is a gamma-lactone, a cyclic ketone, an organic heterotricyclic compound, a sesquiterpene lactone and a secondary alcohol. Helenalin is a natural product found in Pentanema britannicum, Psilostrophe cooperi, and other organisms with data available. A sesquiterpene lactone that is 3,3a,4,4a,7a,8,9,9a-octahydroazuleno[6,5-b]furan-2,5-dione substituted by a hydroxy group at position 4, methyl groups at positions 4a and 8 and a methylidene group at position 3 (the 3aS,4S,4aR,7aR,8R,9aR stereoisomer). D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D006401 - Hematologic Agents > D010975 - Platelet Aggregation Inhibitors D002491 - Central Nervous System Agents > D000700 - Analgesics D020011 - Protective Agents > D002316 - Cardiotonic Agents D000893 - Anti-Inflammatory Agents D000970 - Antineoplastic Agents D002317 - Cardiovascular Agents D018501 - Antirheumatic Agents
Citicoline
CDP-choline is a member of the class of phosphocholines that is the chloine ester of CDP. It is an intermediate obtained in the biosynthetic pathway of structural phospholipids in cell membranes. It has a role as a human metabolite, a psychotropic drug, a neuroprotective agent, a Saccharomyces cerevisiae metabolite and a mouse metabolite. It is a member of phosphocholines and a member of nucleotide-(amino alcohol)s. It is functionally related to a CDP. It is a conjugate base of a CDP-choline(1+). Citicoline is a donor of choline in biosynthesis of choline-containing phosphoglycerides. It has been investigated for the treatment, supportive care, and diagnosis of Mania, Stroke, Hypomania, Cocaine Abuse, and Bipolar Disorder, among others. Citicoline is a nutritional supplement and source of choline and cytidine with potential neuroprotective and nootropic activity. Citicoline, also known as cytidine-5-diphosphocholine or CDP-choline, is hydrolyzed into cytidine and choline in the intestine. Following absorption, both cytidine and choline are dispersed, utilized in various biosynthesis pathways, and cross the blood-brain barrier for resynthesis into citicoline in the brain, which is the rate-limiting product in the synthesis of phosphatidylcholine. This agent also increases acetylcholine (Ach), norepinephrine (NE) and dopamine levels in the central nervous system (CNS). In addition, citicoline is involved in the preservation of sphingomyelin and cardiolipin and the restoration of Na+/K+-ATPase activity. Citicoline also increases glutathione synthesis and glutathione reductase activity, and exerts antiapoptotic effects. Donor of choline in biosynthesis of choline-containing phosphoglycerides. N - Nervous system > N06 - Psychoanaleptics > N06B - Psychostimulants, agents used for adhd and nootropics Acquisition and generation of the data is financially supported in part by CREST/JST. D002491 - Central Nervous System Agents > D018697 - Nootropic Agents Citicoline (Cytidine diphosphate-choline) is an intermediate in the synthesis of phosphatidylcholine, a component of cell membranes. Citicoline exerts neuroprotective effects. Citicoline (Cytidine diphosphate-choline) is an intermediate in the synthesis of phosphatidylcholine, a component of cell membranes. Citicoline exerts neuroprotective effects.
Phosphoethanolamine
O-Phosphoethanolamine, also known as PEA, phosphorylethanolamine, colamine phosphoric acid or ethanolamine O-phosphate, belongs to the class of organic compounds known as phosphoethanolamines. Phosphoethanolamines are compounds containing a phosphate linked to the second carbon of an ethanolamine. O-Phosphoethanolamine is used in the biosynthesis of two different types of phospholipids: glycerophospholipids and sphingolipids. O-Phosphoethanolamine exists in all living species, ranging from bacteria to plants to humans. Within humans, O-phosphoethanolamine participates in a number of enzymatic reactions. In particular, cytidine triphosphate and O-phosphoethanolamine can be converted into CDP-ethanolamine; which is mediated by the enzyme ethanolamine-phosphate cytidylyltransferase. In addition, O-phosphoethanolamine can be biosynthesized from ethanolamine; which is catalyzed by the enzyme choline/ethanolamine kinase. In humans, O-phosphoethanolamine is involved in phosphatidylcholine biosynthesis. O-phosphoethanolamine is also a product of the metabolism of sphingolipids. In particular, sphinglipids are metabolized in vivo to phosphorylethanolamine and a fatty aldehyde, generally palmitaldehyde. Both metabolites are ultimately converted to glycerophospholipids. The lipids are first phosphorylated by a kinase and then cleaved by the pyridoxal-dependent sphinganine-1-phosphate aldolase. Elevated urine levels of O-Phosphoethanolamine or PEA can be used to help in the diagnosis of Hypophosphatasia (HPP). Reference ranges for urinary PEA vary according to age and somewhat by diet, and follow a circadian rhythm. Outside of the human body, O-phosphoethanolamine has been detected, but not quantified in, several different foods, such as oxheart cabbages, anises, shiitakes, abalones, and teffs. Phosphoryl-ethanolamine, also known as colamine phosphoric acid or ethanolamine phosphate, is a member of the class of compounds known as phosphoethanolamines. Phosphoethanolamines are compounds containing a phosphate linked to the second carbon of an ethanolamine. Phosphoryl-ethanolamine is soluble (in water) and a moderately acidic compound (based on its pKa). Phosphoryl-ethanolamine can be found in a number of food items such as pepper (capsicum), black salsify, cascade huckleberry, and redcurrant, which makes phosphoryl-ethanolamine a potential biomarker for the consumption of these food products. Phosphoryl-ethanolamine can be found primarily in most biofluids, including cerebrospinal fluid (CSF), blood, saliva, and feces. Phosphoryl-ethanolamine exists in all living species, ranging from bacteria to humans. In humans, phosphoryl-ethanolamine is involved in several metabolic pathways, some of which include phosphatidylethanolamine biosynthesis PE(22:5(4Z,7Z,10Z,13Z,16Z)/22:5(4Z,7Z,10Z,13Z,16Z)), phosphatidylethanolamine biosynthesis PE(14:0/20:1(11Z)), phosphatidylethanolamine biosynthesis PE(20:2(11Z,14Z)/20:3(8Z,11Z,14Z)), and phosphatidylethanolamine biosynthesis PE(22:5(7Z,10Z,13Z,16Z,19Z)/16:1(9Z)). Phosphoryl-ethanolamine is also involved in few metabolic disorders, which include fabry disease, gaucher disease, and krabbe disease. Moreover, phosphoryl-ethanolamine is found to be associated with traumatic brain injury. Acquisition and generation of the data is financially supported in part by CREST/JST. KEIO_ID E009 Phosphorylethanolamine is an endogenous metabolite. Phosphorylethanolamine is an endogenous metabolite.
Meclizine
Meclizine is only found in individuals that have used or taken this drug. It is a histamine H1 antagonist used in the treatment of motion sickness, vertigo, and nausea during pregnancy and radiation sickness. [PubChem]Along with its actions as an antagonist at H1-receptors, meclizine also possesses anticholinergic, central nervous system depressant, and local anesthetic effects. Meclizine depresses labyrinth excitability and vestibular stimulation and may affect the medullary chemoreceptor trigger zone. R - Respiratory system > R06 - Antihistamines for systemic use > R06A - Antihistamines for systemic use > R06AE - Piperazine derivatives D018377 - Neurotransmitter Agents > D018678 - Cholinergic Agents > D018680 - Cholinergic Antagonists D018377 - Neurotransmitter Agents > D018494 - Histamine Agents > D006633 - Histamine Antagonists C308 - Immunotherapeutic Agent > C29578 - Histamine-1 Receptor Antagonist D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents C78272 - Agent Affecting Nervous System > C267 - Antiemetic Agent D005765 - Gastrointestinal Agents > D000932 - Antiemetics CONFIDENCE standard compound; EAWAG_UCHEM_ID 3084 D002491 - Central Nervous System Agents D018926 - Anti-Allergic Agents
Ciliatine
Ciliatine is an organophosphorus compound isolated from human and animal tissues. [HMDB] Acquisition and generation of the data is financially supported in part by CREST/JST. Ciliatine is an organophosphorus compound isolated from human and animal tissues. KEIO_ID A056 (2-Aminoethyl)phosphonic acid is an endogenous metabolite.
Ethanolamine
Ethanolamine (MEA), also known as monoethanolamine, aminoethanol or glycinol, belongs to the class of organic compounds known as 1,2-aminoalcohols (or simply aminoalcohols). These are organic compounds containing an alkyl chain with an amine group bound to the C1 atom and an alcohol group bound to the C2 atom. Ethanolamine is a colorless, viscous liquid with an odor reminiscent of ammonia. In pharmaceutical formulations, ethanolamine is used primarily for buffering or preparation of emulsions. Ethanolamine can also be used as pH regulator in cosmetics. Biologically, ethanolamine is an initial precursor for the biosynthesis of two primary phospholipid classes, phosphatidylcholine (PC) and phosphatidylethanolamine (PE). In this regard, ethanolamine is the second-most-abundant head group for phospholipids. Ethanolamine serves as a precursor for a variety of N-acylethanolamines (NAEs). These are molecules that modulate several animal and plant physiological processes such as seed germination, plant–pathogen interactions, chloroplast development and flowering (PMID: 30190434). Ethanolamine, when combined with arachidonic acid (C20H32O2; 20:4, ω-6), can also form the endocannabinoid anandamide. Ethanolamine can be converted to phosphoethanolamine via the enzyme known as ethanolamine kinase. the two substrates of this enzyme are ATP and ethanolamine, whereas its two products are ADP and O-phosphoethanolamine. In most plants ethanolamine is biosynthesized by decarboxylation of serine via a pyridoxal 5-phosphate-dependent l-serine decarboxylase (SDC). Ethanolamine exists in all living species, ranging from bacteria to plants to humans. Ethanolamine has been detected, but not quantified in, several different foods, such as narrowleaf cattails, mung beans, blackcurrants, white cabbages, and bilberries. Ethanolamine, also known as aminoethanol or beta-aminoethyl alcohol, is a member of the class of compounds known as 1,2-aminoalcohols. 1,2-aminoalcohols are organic compounds containing an alkyl chain with an amine group bound to the C1 atom and an alcohol group bound to the C2 atom. Ethanolamine is soluble (in water) and an extremely weak acidic compound (based on its pKa). Ethanolamine can be found in a number of food items such as daikon radish, caraway, muscadine grape, and lemon grass, which makes ethanolamine a potential biomarker for the consumption of these food products. Ethanolamine can be found primarily in most biofluids, including urine, cerebrospinal fluid (CSF), feces, and saliva, as well as throughout most human tissues. Ethanolamine exists in all living species, ranging from bacteria to humans. In humans, ethanolamine is involved in several metabolic pathways, some of which include phosphatidylcholine biosynthesis PC(20:3(5Z,8Z,11Z)/18:3(6Z,9Z,12Z)), phosphatidylcholine biosynthesis PC(22:5(7Z,10Z,13Z,16Z,19Z)/18:3(6Z,9Z,12Z)), phosphatidylcholine biosynthesis PC(20:4(5Z,8Z,11Z,14Z)/20:0), and phosphatidylethanolamine biosynthesis PE(11D5/9M5). Moreover, ethanolamine is found to be associated with maple syrup urine disease and propionic acidemia. Ethanolamine is a non-carcinogenic (not listed by IARC) potentially toxic compound. Ethanolamine, also called 2-aminoethanol or monoethanolamine (often abbreviated as ETA or MEA), is an organic chemical compound with the formula HOCH2CH2NH2. The molecule is both a primary amine and a primary alcohol (due to a hydroxyl group). Ethanolamine is a colorless, viscous liquid with an odor reminiscent to that of ammonia. Its derivatives are widespread in nature; e.g., lipids . C308 - Immunotherapeutic Agent > C29578 - Histamine-1 Receptor Antagonist KEIO_ID E023
6-Chloro-1,3,5-triazine-2,4-diamine
CONFIDENCE standard compound; INTERNAL_ID 2022
2-Hydroxybutyric acid
2-Hydroxybutyric acid (CAS: 600-15-7), also known as alpha-hydroxybutyrate, is an organic acid derived from alpha-ketobutyrate. alpha-Ketobutyrate is produced by amino acid catabolism (threonine and methionine) and glutathione anabolism (cysteine formation pathway) and is metabolized into propionyl-CoA and carbon dioxide (PMID: 20526369). 2-Hydroxybutyric acid is formed as a byproduct from the formation of alpha-ketobutyrate via a reaction catalyzed by lactate dehydrogenase (LDH) or alpha-hydroxybutyrate dehydrogenase (alphaHBDH). alpha-Hydroxybutyric acid is primarily produced in mammalian hepatic tissues that catabolize L-threonine or synthesize glutathione. Oxidative stress or detoxification of xenobiotics in the liver can dramatically increase the rate of hepatic glutathione synthesis. Under such metabolic stress conditions, supplies of L-cysteine for glutathione synthesis become limiting, so homocysteine is diverted from the transmethylation pathway (which forms methionine) into the transsulfuration pathway (which forms cystathionine). alpha-Ketobutyrate is released as a byproduct when cystathionine is cleaved into cysteine that is incorporated into glutathione. Chronic shifts in the rate of glutathione synthesis may be reflected by urinary excretion of 2-hydroxybutyrate. 2-Hydroxybutyrate is an early marker for both insulin resistance and impaired glucose regulation that appears to arise due to increased lipid oxidation and oxidative stress (PMID: 20526369). 2-Hydroxybutyric acid is often found in the urine of patients suffering from lactic acidosis and ketoacidosis. 2-Hydroxybutyric acid generally appears at high concentrations in situations related to deficient energy metabolism (e.g. birth asphyxia) and also in inherited metabolic diseases affecting the central nervous system during neonatal development, such as "cerebral" lactic acidosis, glutaric aciduria type II, dihydrolipoyl dehydrogenase (E3) deficiency, and propionic acidemia. More recently it has been noted that elevated levels of alpha-hydroxybutyrate in the plasma is a good marker for early-stage type II diabetes (PMID: 19166731). It was concluded from studies done in the mid-1970s that an increased NADH2/NAD ratio was the most important factor for the production of 2-hydroxybutyric acid (PMID: 168632). 2-Hydroxybutyric acid is an organic acid that is involved in propanoate metabolism. It is produced in mammalian tissues (principaly hepatic) that catabolize L-threonine or synthesize glutathione. Oxidative stress or detoxification demands can dramatically increase the rate of hepatic glutathione synthesis. Under such metabolic stress conditions, supplies of L-cysteine for glutathione synthesis become limiting, so homocysteine is diverted from the transmethylation pathway forming methionine into the transsulfuration pathway forming cystathionine. 2-Hydroxybutyrate is released as a by-product when cystathionine is cleaved to cysteine that is incorporated into glutathione. 2-Hydroxybutyric acid is often found in the urine of patients suffering from lactic acidosis and ketoacidosis. 2-Hydroxybutyric acid generally appears at high concentrations in situations related to deficient energy metabolism (e.g., birth asphyxia) and also in inherited metabolic diseases affecting the central nervous system during neonatal development, such as "cerebral" lactic acidosis, glutaric aciduria type II, dihydrolipoyl dehydrogenase (E3) deficiency, and propionic acidemia. More recently it has been noted that elevated levels of alpha-hydroxybutyrate in the plasma is a good marker for early stage type II diabetes (PMID: 19166731). It was concluded from studies done in the mid 1970s that an increased NADH2/NAD ratio was the most important factor for the production of 2-hydorxybutyric acid (PMID: 168632) [HMDB] 2-Hydroxybutyric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=565-70-8 (retrieved 2024-07-16) (CAS RN: 600-15-7). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). (S)-2-Hydroxybutanoic acid is the S-enantiomer of?2-Hydroxybutanoic acid. 2-Hydroxybutanoic acid, a coproduct of protein metabolism, is an insulin resistance (IR) biomarker[1].
CDP
Cytidine diphosphate, abbreviated CDP, and also known as 5-CDP, belongs to the class of organic compounds known as pyrimidine ribonucleoside diphosphates. These are pyrimidine ribonucleotides with diphosphate group linked to the ribose moiety. It is a cytosine nucleotide containing two phosphate groups esterified to the sugar moiety. CDP exists in all living species, ranging from bacteria to humans. In humans, CDP is involved in cardiolipin biosynthesis. Outside of the human body, CDP has been detected, but not quantified in several different foods, such as carobs, mexican oregano, evergreen huckleberries, green vegetables, and pepper (Capsicum baccatum). Cytidine 5-(trihydrogen diphosphate). A cytosine nucleotide containing two phosphate groups esterified to the sugar moiety. Synonyms: CRPP; cytidine pyrophosphate. [HMDB]. CDP is found in many foods, some of which are sweet cherry, hard wheat, roman camomile, and ginseng. Acquisition and generation of the data is financially supported in part by CREST/JST.
Cytidine triphosphate
Cytidine triphosphate (CTP), also known as 5-CTP, is pyrimidine nucleoside triphosphate. Formally, CTP is an ester of cytidine and triphosphoric acid. It belongs to the class of organic compounds known as pentose phosphates. These are carbohydrate derivatives containing a pentose substituted by one or more phosphate groups. CTP, much like ATP, consists of a base (cytosine), a ribose sugar, and three phosphate groups. CTP is a high-energy molecule similar to ATP, but its role as an energy coupler is limited to a much smaller subset of metabolic reactions. CTP exists in all living species, ranging from bacteria to plants to humans and is used in the synthesis of RNA via RNA polymerase. Another enzyme known as cytidine triphosphate synthetase (CTPS) mediates the conversion of uridine triphosphate (UTP) into cytidine triphosphate (CTP) which is the rate-limiting step of de novo CTP biosynthesis. CTPS catalyzes a complex set of reactions that include the ATP-dependent transfer of the amide nitrogen from glutamine (i.e., glutaminase reaction) to the C-4 position of UTP to generate CTP. GTP stimulates the glutaminase reaction by accelerating the formation of a covalent glutaminyl enzyme intermediate. CTPS activity regulates the intracellular rates of RNA synthesis, DNA synthesis, and phospholipid synthesis. CTPS is an established target for a number of antiviral, antineoplastic, and antiparasitic drugs. CTP also acts as an inhibitor of the enzyme known as aspartate carbamoyltransferase, which is used in pyrimidine biosynthesis. CTP also reacts with nitrogen-containing alcohols to form coenzymes that participate in the formation of phospholipids. In particular, CTP is the direct precursor of the activated, phospholipid pathway intermediates CDP-diacylglycerol, CDP-choline, and CDP-ethanolamine ((PMID: 18439916). CDP-diacylglycerol is the source of the phosphatidyl moiety for phosphatidylserine, phosphatidylethanolamine, and phosphatidylcholine (synthesized by way of the CDP-diacylglycerol pathway) as well as phosphatidylglycerol, cardiolipin, and phosphatidylinositol (PMID: 18439916). Cytidine triphosphate, also known as 5-ctp or cytidine 5-triphosphoric acid, is a member of the class of compounds known as pentose phosphates. Pentose phosphates are carbohydrate derivatives containing a pentose substituted by one or more phosphate groups. Cytidine triphosphate is soluble (in water) and an extremely strong acidic compound (based on its pKa). Cytidine triphosphate can be found in a number of food items such as lowbush blueberry, black radish, american pokeweed, and cherry tomato, which makes cytidine triphosphate a potential biomarker for the consumption of these food products. Cytidine triphosphate can be found primarily in cellular cytoplasm, as well as throughout all human tissues. Cytidine triphosphate exists in all living species, ranging from bacteria to humans. In humans, cytidine triphosphate is involved in several metabolic pathways, some of which include cardiolipin biosynthesis cl(i-14:0/i-17:0/i-16:0/i-21:0), cardiolipin biosynthesis cl(a-13:0/a-21:0/i-22:0/i-17:0), phosphatidylethanolamine biosynthesis PE(18:2(9Z,12Z)/24:0), and cardiolipin biosynthesis cl(i-13:0/a-21:0/a-15:0/i-16:0). Cytidine triphosphate is also involved in several metabolic disorders, some of which include sialuria or french type sialuria, tay-sachs disease, MNGIE (mitochondrial neurogastrointestinal encephalopathy), and g(m2)-gangliosidosis: variant B, tay-sachs disease. Cytidine triphosphate is a high-energy molecule similar to ATP, but its role as an energy coupler is limited to a much smaller subset of metabolic reactions. Cytidine triphosphate is a coenzyme in metabolic reactions like the synthesis of glycerophospholipids and glycosylation of proteins . Cytidine 5′-triphosphate (Cytidine triphosphate; 5'-CTP) is a nucleoside triphosphate and serves as a building block for nucleotides and nucleic acids, lipid biosynthesis. Cytidine triphosphate synthase can catalyze the formation of cytidine 5′-triphosphate from uridine 5′-triphosphate (UTP). Cytidine 5′-triphosphate is an essential biomolecule?in the de novo?pyrimidine biosynthetic pathway in?T. gondii[1].
CDP-glycerol
Cdp-glycerol is a member of the class of compounds known as cdp-glycerols. Cdp-glycerols are glycerolipids with a cytidine diphosphate attached to the oxygen O1 or O2 of the glycerol part. Cdp-glycerol is slightly soluble (in water) and a moderately acidic compound (based on its pKa). Cdp-glycerol can be found in a number of food items such as pummelo, elderberry, mugwort, and american butterfish, which makes cdp-glycerol a potential biomarker for the consumption of these food products. Cdp-glycerol is part of the Purine metabolism, and Glycerophospholipid metabolism pathways. It is a substrate for: Manganese-dependent ADP-ribose/CDP-alcohol diphosphatase.
CDP-ethanolamine
CDP-ethanolamine, also known as cytidine 5’-diphosphoethanolamine, belongs to the class of organic compounds known as CDP-ethanolamines. These are phosphoethanolamines that consist of an ethanolamine having a cytidine 5-diphosphate moiety attached to the oxygen. CDP-ethanolamine is a very strong basic compound (based on its pKa). In humans, CDP-ethanolamine is involved in phosphatidylethanolamine biosynthesis. Outside of the human body, CDP-ethanolamine has been detected, but not quantified in, several different foods, such as Chinese water chestnuts, buffalo currants, red huckleberries, eggplants, and brazil nuts. This could make CDP-ethanolamine a potential biomarker for the consumption of these foods. Cytidine is a molecule (known as a nucleoside) that is formed when cytosine is attached to a ribose ring (also known as a ribofuranose) via a beta-N1-glycosidic bond. [HMDB]. CDP-Ethanolamine is found in many foods, some of which are allspice, hedge mustard, wasabi, and green vegetables.
Succinylsulfathiazole
Same as: D07060
24-Hydroxycholesterol
24-Hydroxycholesterol (24OHC) is almost exclusively formed in the brain. The enzymatic conversion of CNS cholesterol to 24OHC, which readily crosses the blood-brain barrier, is the major pathway for brain cholesterol elimination and brain cholesterol homeostasis maintenance. The enzyme mediating this conversion has been characterized at the molecular level as cholesterol 24-hydroxylase (EC 1.14.13.98, CYP46) and is mainly located in neurons. Like other oxysterols, 24OHC is efficiently converted into normal bile acids or excreted in bile in its sulfated and glucuronidated form. Levels of 24OHC in the circulation decrease with age in infants and children. In adults, however, the levels appear to be stable. There is accumulating evidence pointing toward a potentially important link between cholesterol, beta-amyloid, and Alzheimers disease. Patients with active demyelinating diseases had increased levels of 24OHC in cerebrospinal fluid (CSF). Patients with Alzheimers disease have slightly increased levels of 24OHC in CSF. Patients with multiple sclerosis have a tendency to have higher levels of 24OHC during active periods. (PMID: 15061359, 14574622). 24-Hydroxycholesterol has been found to accumulate in hereditary hypercholesterolemia, an inborn error of metabolism. 24-Hydroxycholesterol (24OHC) is almost exclusively formed in the brain. The enzymatic conversion of CNS cholesterol to 24OHC, which readily crosses the blood-brain barrier, is the major pathway for brain cholesterol elimination and brain cholesterol homeostasis maintenance. The enzyme mediating this conversion has been characterized at the molecular level as cholesterol 24-hydroxylase (EC 1.14.13.98, CYP46) and is mainly located in neurons. Like other oxysterols, 24OHC is efficiently converted into normal bile acids or excreted in bile in its sulfated and glucuronidated form. Levels of 24OHC in the circulation decrease with age in infants and children. In adults, however, the levels appear to be stable. There is accumulating evidence pointing toward a potentially important link between cholesterol, beta-amyloid, and Alzheimers disease. Patients with active demyelinating diseases had increased levels of 24OHC in cerebrospinal fluid (CSF). Patients with Alzheimers disease have slightly increased levels of 24OHC in CSF. Patients with multiple sclerosis have a tendency to have higher levels of 24OHC during active periods. (PMID: 15061359, 14574622) [HMDB] 24(S)-Hydroxycholesterol (24S-OHC), the major brain cholesterol metabolite, plays an important role to maintain homeostasis of cholesterol in the brain. 24(S)-Hydroxycholesterol (24S-OHC) is one of the most efficient endogenous LXR agonist known and is present in the brain and in the circulation at relatively high levels. 24(S)-Hydroxycholesterol (24S-OHC) is a very potent, direct, and selective positive allosteric modulator of NMDARs with a mechanism that does not overlapthat of other allosteric modulators[1][2][3]. 24(S)-Hydroxycholesterol (24S-OHC), the major brain cholesterol metabolite, plays an important role to maintain homeostasis of cholesterol in the brain. 24(S)-Hydroxycholesterol (24S-OHC) is one of the most efficient endogenous LXR agonist known and is present in the brain and in the circulation at relatively high levels. 24(S)-Hydroxycholesterol (24S-OHC) is a very potent, direct, and selective positive allosteric modulator of NMDARs with a mechanism that does not overlapthat of other allosteric modulators[1][2][3].
succinylsulfathiazole
A - Alimentary tract and metabolism > A07 - Antidiarrheals, intestinal antiinflammatory/antiinfective agents > A07A - Intestinal antiinfectives > A07AB - Sulfonamides C254 - Anti-Infective Agent > C29739 - Sulfonamide Anti-Infective Agent D000890 - Anti-Infective Agents > D013432 - Sulfathiazoles D000890 - Anti-Infective Agents > D013424 - Sulfanilamides Same as: D07060
Phosphodimethylethanolamine
Phosphomonomethylethanolamine, phosphodimethylethanolamine and phosphocholine were weak competitive inhibitors of the cytidylyltransferase catalyzed reaction when phosphoethanolamine was used as a substrate, with Ki values of 7.0, 6.8 and 52.9 mM, respectively. (PMID: 8130268) Unlike the plant and Plasmodium PEAMT, which catalyze all three methylations in the pathway, PMT-2 catalyzes only the last two steps in the pathway, i.e., the methylation of phosphomonomethylethanolamine (P-MME) to phosphodimethylethanolamine (P-DME) and of P-DME to phosphocholine. (PMID: 16681378)
2-Hydroxybutyric acid
A hydroxybutyric acid having a single hydroxyl group located at position 2; urinary secretion of 2-hydroxybutyric acid is increased with alcohol ingestion or vigorous physical exercise and is associated with lactic acidosis and ketoacidosis in humans and diabetes in animals. (S)-2-Hydroxybutanoic acid is the S-enantiomer of?2-Hydroxybutanoic acid. 2-Hydroxybutanoic acid, a coproduct of protein metabolism, is an insulin resistance (IR) biomarker[1].
O-PHOSPHORYLETHANOLAMINE
Phosphorylethanolamine is an endogenous metabolite. Phosphorylethanolamine is an endogenous metabolite.
Citicoline
CDP-choline is a member of the class of phosphocholines that is the chloine ester of CDP. It is an intermediate obtained in the biosynthetic pathway of structural phospholipids in cell membranes. It has a role as a human metabolite, a psychotropic drug, a neuroprotective agent, a Saccharomyces cerevisiae metabolite and a mouse metabolite. It is a member of phosphocholines and a member of nucleotide-(amino alcohol)s. It is functionally related to a CDP. It is a conjugate base of a CDP-choline(1+). Citicoline is a donor of choline in biosynthesis of choline-containing phosphoglycerides. It has been investigated for the treatment, supportive care, and diagnosis of Mania, Stroke, Hypomania, Cocaine Abuse, and Bipolar Disorder, among others. Citicoline is a nutritional supplement and source of choline and cytidine with potential neuroprotective and nootropic activity. Citicoline, also known as cytidine-5-diphosphocholine or CDP-choline, is hydrolyzed into cytidine and choline in the intestine. Following absorption, both cytidine and choline are dispersed, utilized in various biosynthesis pathways, and cross the blood-brain barrier for resynthesis into citicoline in the brain, which is the rate-limiting product in the synthesis of phosphatidylcholine. This agent also increases acetylcholine (Ach), norepinephrine (NE) and dopamine levels in the central nervous system (CNS). In addition, citicoline is involved in the preservation of sphingomyelin and cardiolipin and the restoration of Na+/K+-ATPase activity. Citicoline also increases glutathione synthesis and glutathione reductase activity, and exerts antiapoptotic effects. Donor of choline in biosynthesis of choline-containing phosphoglycerides. N - Nervous system > N06 - Psychoanaleptics > N06B - Psychostimulants, agents used for adhd and nootropics D002491 - Central Nervous System Agents > D018697 - Nootropic Agents Citicoline (Cytidine diphosphate-choline) is an intermediate in the synthesis of phosphatidylcholine, a component of cell membranes. Citicoline exerts neuroprotective effects. Citicoline (Cytidine diphosphate-choline) is an intermediate in the synthesis of phosphatidylcholine, a component of cell membranes. Citicoline exerts neuroprotective effects.
Ethanolamine
A member of the class of ethanolamines that is ethane with an amino substituent at C-1 and a hydroxy substituent at C-2, making it both a primary amine and a primary alcohol. C308 - Immunotherapeutic Agent > C29578 - Histamine-1 Receptor Antagonist
(2-Aminoethyl)phosphonic acid
A phosphonic acid in which the hydrogen attached to the phosphorus of phosphonic acid is substituted by a 2-aminoethyl group. (2-Aminoethyl)phosphonic acid is an endogenous metabolite.
CDP-ethanolamine
A phosphoethanolamine consisting of ethanolamine having a cytidine 5-diphosphate moiety attached to the oxygen.
meclizine
R - Respiratory system > R06 - Antihistamines for systemic use > R06A - Antihistamines for systemic use > R06AE - Piperazine derivatives D018377 - Neurotransmitter Agents > D018678 - Cholinergic Agents > D018680 - Cholinergic Antagonists D018377 - Neurotransmitter Agents > D018494 - Histamine Agents > D006633 - Histamine Antagonists C308 - Immunotherapeutic Agent > C29578 - Histamine-1 Receptor Antagonist D018373 - Peripheral Nervous System Agents > D001337 - Autonomic Agents C78272 - Agent Affecting Nervous System > C267 - Antiemetic Agent D005765 - Gastrointestinal Agents > D000932 - Antiemetics D002491 - Central Nervous System Agents D018926 - Anti-Allergic Agents
CYTIDINE-5-triphosphATE
Cytidine 5′-triphosphate (Cytidine triphosphate; 5'-CTP) is a nucleoside triphosphate and serves as a building block for nucleotides and nucleic acids, lipid biosynthesis. Cytidine triphosphate synthase can catalyze the formation of cytidine 5′-triphosphate from uridine 5′-triphosphate (UTP). Cytidine 5′-triphosphate is an essential biomolecule?in the de novo?pyrimidine biosynthetic pathway in?T. gondii[1].
Cerebrosterol
A 24-hydroxycholesterol that has S configuration at position 24. It is the major metabolic breakdown product of cholesterol in the brain. 24(S)-Hydroxycholesterol (24S-OHC), the major brain cholesterol metabolite, plays an important role to maintain homeostasis of cholesterol in the brain. 24(S)-Hydroxycholesterol (24S-OHC) is one of the most efficient endogenous LXR agonist known and is present in the brain and in the circulation at relatively high levels. 24(S)-Hydroxycholesterol (24S-OHC) is a very potent, direct, and selective positive allosteric modulator of NMDARs with a mechanism that does not overlapthat of other allosteric modulators[1][2][3]. 24(S)-Hydroxycholesterol (24S-OHC), the major brain cholesterol metabolite, plays an important role to maintain homeostasis of cholesterol in the brain. 24(S)-Hydroxycholesterol (24S-OHC) is one of the most efficient endogenous LXR agonist known and is present in the brain and in the circulation at relatively high levels. 24(S)-Hydroxycholesterol (24S-OHC) is a very potent, direct, and selective positive allosteric modulator of NMDARs with a mechanism that does not overlapthat of other allosteric modulators[1][2][3].
