Reaction Process: Plant Reactome:R-OSA-1119370

Sterol biosynthesis related metabolites

find 24 related metabolites which is associated with chemical reaction(pathway) Sterol biosynthesis

delta24-25-sitosterol ⟶ sitosterol

Campesterol

(8R,9S,10S,13R,14S,17R)-17-((2R,5R)-5,6-Dimethylheptan-2-yl)-10,13-dimethyl-4,5,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol

C28H48O (400.37049579999996)


Campesterol is a phytosterol, meaning it is a steroid derived from plants. As a food additive, phytosterols have cholesterol-lowering properties (reducing cholesterol absorption in intestines), and may act in cancer prevention. Phytosterols naturally occur in small amount in vegetable oils, especially soybean oil. One such phytosterol complex, isolated from vegetable oil, is cholestatin, composed of campesterol, stigmasterol, and brassicasterol, and is marketed as a dietary supplement. Sterols can reduce cholesterol in human subjects by up to 15\\\\\%. The mechanism behind phytosterols and the lowering of cholesterol occurs as follows : the incorporation of cholesterol into micelles in the gastrointestinal tract is inhibited, decreasing the overall amount of cholesterol absorbed. This may in turn help to control body total cholesterol levels, as well as modify HDL, LDL and TAG levels. Many margarines, butters, breakfast cereals and spreads are now enriched with phytosterols and marketed towards people with high cholesterol and a wish to lower it. -- Wikipedia. Campesterol is a member of phytosterols, a 3beta-sterol, a 3beta-hydroxy-Delta(5)-steroid and a C28-steroid. It has a role as a mouse metabolite. It derives from a hydride of a campestane. Campesterol is a natural product found in Haplophyllum bucharicum, Bugula neritina, and other organisms with data available. Campesterol is a steroid derivative that is the simplest sterol, characterized by the hydroxyl group in position C-3 of the steroid skeleton, and saturated bonds throughout the sterol structure, with the exception of the 5-6 double bond in the B ring. Campesterol. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=474-62-4 (retrieved 2024-07-01) (CAS RN: 474-62-4). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Campesterol is a plant sterol with cholesterol lowering and anticarcinogenic effects. Campesterol is a plant sterol with cholesterol lowering and anticarcinogenic effects.

   

Isofucosterol

(3S,8S,9S,10R,13R,14S,17R)-17-((R,E)-5-Isopropylhept-5-en-2-yl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol

C29H48O (412.37049579999996)


Isofucosterol, also known as delta5-avenasterol, is a phytosterol. Phytosterols, or plant sterols, are compounds that occur naturally and bear a close structural resemblance to cholesterol but have different side-chain configurations. Phytosterols are relevant in pharmaceuticals (production of therapeutic steroids), nutrition (anti-cholesterol additives in functional foods, anti-cancer properties), and cosmetics (creams, lipstick). Phytosterols can be obtained from vegetable oils or from industrial wastes, which gives an added value to the latter. Considerable efforts have been recently dedicated to the development of efficient processes for phytosterol isolation from natural sources. The present work aims to summarize information on the applications of phytosterols and to review recent approaches, mainly from the industry, for the large-scale recovery of phytosterols (PMID: 17123816, 16481154). Isofucosterol is found to be associated with phytosterolemia, which is an inborn error of metabolism. Isofucosterol, also known as (24z)-stigmasta-5,24(28)-dien-3-ol or delta5-avenasterol, belongs to stigmastanes and derivatives class of compounds. Those are sterol lipids with a structure based on the stigmastane skeleton, which consists of a cholestane moiety bearing an ethyl group at the carbon atom C24. Thus, isofucosterol is considered to be a sterol lipid molecule. Isofucosterol is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). Isofucosterol can be found in a number of food items such as globe artichoke, gooseberry, deerberry, and ucuhuba, which makes isofucosterol a potential biomarker for the consumption of these food products. Isofucosterol can be found primarily in blood. Moreover, isofucosterol is found to be associated with sitosterolemia. Isofucosterol is a 3beta-sterol consisting of stigmastan-3beta-ol with double bonds at positions 5 and 24(28). The double bond at postion 24(28) adopts a Z-configuration. It has a role as an animal metabolite, a plant metabolite, an algal metabolite and a marine metabolite. It is a 3beta-sterol, a 3beta-hydroxy-Delta(5)-steroid, a C29-steroid and a member of phytosterols. It derives from a hydride of a stigmastane. Fucosterol is a natural product found in Echinometra lucunter, Ulva fasciata, and other organisms with data available. A 3beta-sterol consisting of stigmastan-3beta-ol with double bonds at positions 5 and 24(28). The double bond at postion 24(28) adopts a Z-configuration. Fucosterol is a sterol isolated from algae, seaweed or diatoms.?Fucosterol exhibits various biological activities, including antioxidant, anti-adipogenic, blood cholesterol reducing, anti-diabetic and anti-cancer activities[1][2]. Fucosterol regulates adipogenesis via inhibition of?PPARα?and?C/EBPα?expression and can be used for anti-obesity agents development research[1]. Fucosterol is a sterol isolated from algae, seaweed or diatoms.?Fucosterol exhibits various biological activities, including antioxidant, anti-adipogenic, blood cholesterol reducing, anti-diabetic and anti-cancer activities[1][2]. Fucosterol regulates adipogenesis via inhibition of?PPARα?and?C/EBPα?expression and can be used for anti-obesity agents development research[1].

   

Stigmasterol

(3S,8S,9S,10R,13R,14S,17R)-17-((2R,5S,E)-5-ethyl-6-methylhept-3-en-2-yl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol

C29H48O (412.37049579999996)


Stigmasterol is a phytosterol, meaning it is steroid derived from plants. As a food additive, phytosterols have cholesterol-lowering properties (reducing cholesterol absorption in intestines), and may act in cancer prevention. Phytosterols naturally occur in small amount in vegetable oils, especially soybean oil. One such phytosterol complex, isolated from vegetable oil, is cholestatin, composed of campesterol, stigmasterol, and brassicasterol, and is marketed as a dietary supplement. Sterols can reduce cholesterol in human subjects by up to 15\\%. The mechanism behind phytosterols and the lowering of cholesterol occurs as follows : the incorporation of cholesterol into micelles in the gastrointestinal tract is inhibited, decreasing the overall amount of cholesterol absorbed. This may in turn help to control body total cholesterol levels, as well as modify HDL, LDL and TAG levels. Many margarines, butters, breakfast cereals and spreads are now enriched with phytosterols and marketed towards people with high cholesterol and a wish to lower it. Stigmasterol is found to be associated with phytosterolemia, which is an inborn error of metabolism. Stigmasterol is a 3beta-sterol that consists of 3beta-hydroxystigmastane having double bonds at the 5,6- and 22,23-positions. It has a role as a plant metabolite. It is a 3beta-sterol, a stigmastane sterol, a 3beta-hydroxy-Delta(5)-steroid and a member of phytosterols. It derives from a hydride of a stigmastane. Stigmasterol is a natural product found in Ficus auriculata, Xylopia aromatica, and other organisms with data available. Stigmasterol is a steroid derivative characterized by the hydroxyl group in position C-3 of the steroid skeleton, and unsaturated bonds in position 5-6 of the B ring, and position 22-23 in the alkyl substituent. Stigmasterol is found in the fats and oils of soybean, calabar bean and rape seed, as well as several other vegetables, legumes, nuts, seeds, and unpasteurized milk. See also: Comfrey Root (part of); Saw Palmetto (part of); Plantago ovata seed (part of). Stigmasterol is an unsaturated plant sterol occurring in the plant fats or oils of soybean, calabar bean, and rape seed, and in a number of medicinal herbs, including the Chinese herbs Ophiopogon japonicus (Mai men dong) and American Ginseng. Stigmasterol is also found in various vegetables, legumes, nuts, seeds, and unpasteurized milk. A 3beta-sterol that consists of 3beta-hydroxystigmastane having double bonds at the 5,6- and 22,23-positions. C1907 - Drug, Natural Product > C28178 - Phytosterol > C68437 - Unsaturated Phytosterol

   

beta-Sitosterol

(3S,8S,9S,10R,13R,14S,17R)-17-((2R,5R)-5-ethyl-6-methylheptan-2-yl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol

C29H50O (414.386145)


beta-Sitosterol, a main dietary phytosterol found in plants, may have the potential for prevention and therapy for human cancer. Phytosterols are plant sterols found in foods such as oils, nuts, and vegetables. Phytosterols, in the same way as cholesterol, contain a double bond and are susceptible to oxidation, and are characterized by anti-carcinogenic and anti-atherogenic properties (PMID:13129445, 11432711). beta-Sitosterol is a phytopharmacological extract containing a mixture of phytosterols, with smaller amounts of other sterols, bonded with glucosides. These phytosterols are commonly derived from the South African star grass, Hypoxis rooperi, or from species of Pinus and Picea. The purported active constituent is termed beta-sitosterol. Additionally, the quantity of beta-sitosterol-beta-D-glucoside is often reported. Although the exact mechanism of action of beta-sitosterols is unknown, it may be related to cholesterol metabolism or anti-inflammatory effects (via interference with prostaglandin metabolism). Compared with placebo, beta-sitosterol improved urinary symptom scores and flow measures (PMID:10368239). A plant food-based diet modifies the serum beta-sitosterol concentration in hyperandrogenic postmenopausal women. This finding indicates that beta-sitosterol can be used as a biomarker of exposure in observational studies or as a compliance indicator in dietary intervention studies of cancer prevention (PMID:14652381). beta-Sitosterol induces apoptosis and activates key caspases in MDA-MB-231 human breast cancer cells (PMID:12579296). Sitosterol is a member of the class of phytosterols that is stigmast-5-ene substituted by a beta-hydroxy group at position 3. It has a role as a sterol methyltransferase inhibitor, an anticholesteremic drug, an antioxidant, a plant metabolite and a mouse metabolite. It is a 3beta-sterol, a stigmastane sterol, a 3beta-hydroxy-Delta(5)-steroid, a C29-steroid and a member of phytosterols. It derives from a hydride of a stigmastane. Active fraction of Solanum trilobatum; reduces side-effects of radiation-induced toxicity. Beta-Sitosterol is a natural product found in Elodea canadensis, Ophiopogon intermedius, and other organisms with data available. beta-Sitosterol is one of several phytosterols (plant sterols) with chemical structures similar to that of cholesterol. Sitosterols are white, waxy powders with a characteristic odor. They are hydrophobic and soluble in alcohols. beta-Sitosterol is found in many foods, some of which are ginseng, globe artichoke, sesbania flower, and common oregano. C1907 - Drug, Natural Product > C28178 - Phytosterol > C68437 - Unsaturated Phytosterol D057847 - Lipid Regulating Agents > D000960 - Hypolipidemic Agents D009676 - Noxae > D000963 - Antimetabolites Beta-Sitosterol (purity>98\\%) is a plant sterol. Beta-Sitosterol (purity>98\\%) interfere with multiple cell signaling pathways, including cell cycle, apoptosis, proliferation, survival, invasion, angiogenesis, metastasis and inflammation[1]. Beta-Sitosterol (purity>98\%) is a plant sterol. Beta-Sitosterol (purity>98\%) interfere with multiple cell signaling pathways, including cell cycle, apoptosis, proliferation, survival, invasion, angiogenesis, metastasis and inflammation[1].

   

Squalene

InChI=1/C30H50/c1-25(2)15-11-19-29(7)23-13-21-27(5)17-9-10-18-28(6)22-14-24-30(8)20-12-16-26(3)4/h15-18,23-24H,9-14,19-22H2,1-8H3/b27-17+,28-18+,29-23+,30-24

C30H50 (410.39123)


Squalene is an unsaturated aliphatic hydrocarbon (carotenoid) with six unconjugated double bonds found in human sebum (5\\\\%), fish liver oils, yeast lipids, and many vegetable oils (e.g. palm oil, cottonseed oil, rapeseed oil). Squalene is a volatile component of the scent material from Saguinus oedipus (cotton-top tamarin monkey) and Saguinus fuscicollis (saddle-back tamarin monkey) (Hawleys Condensed Chemical Reference). Squalene is a component of adult human sebum that is principally responsible for fixing fingerprints (ChemNetBase). It is a natural organic compound originally obtained for commercial purposes primarily from shark liver oil, though there are botanical sources as well, including rice bran, wheat germ, and olives. All higher organisms produce squalene, including humans. It is a hydrocarbon and a triterpene. Squalene is a biochemical precursor to the whole family of steroids. Oxidation of one of the terminal double bonds of squalene yields 2,3-squalene oxide which undergoes enzyme-catalyzed cyclization to afford lanosterol, which is then elaborated into cholesterol and other steroids. Squalene is a low-density compound often stored in the bodies of cartilaginous fishes such as sharks, which lack a swim bladder and must therefore reduce their body density with fats and oils. Squalene, which is stored mainly in the sharks liver, is lighter than water with a specific gravity of 0.855 (Wikipedia) Squalene is used as a bactericide. It is also an intermediate in the manufacture of pharmaceuticals, rubber chemicals, and colouring materials (Physical Constants of Chemical Substances). Trans-squalene is a clear, slightly yellow liquid with a faint odor. Density 0.858 g / cm3. Squalene is a triterpene consisting of 2,6,10,15,19,23-hexamethyltetracosane having six double bonds at the 2-, 6-, 10-, 14-, 18- and 22-positions with (all-E)-configuration. It has a role as a human metabolite, a plant metabolite, a Saccharomyces cerevisiae metabolite and a mouse metabolite. Squalene is originally obtained from shark liver oil. It is a natural 30-carbon isoprenoid compound and intermediate metabolite in the synthesis of cholesterol. It is not susceptible to lipid peroxidation and provides skin protection. It is ubiquitously distributed in human tissues where it is transported in serum generally in association with very low density lipoproteins. Squalene is investigated as an adjunctive cancer therapy. Squalene is a natural product found in Ficus septica, Garcinia multiflora, and other organisms with data available. squalene is a metabolite found in or produced by Saccharomyces cerevisiae. A natural 30-carbon triterpene. See also: Olive Oil (part of); Shark Liver Oil (part of). A triterpene consisting of 2,6,10,15,19,23-hexamethyltetracosane having six double bonds at the 2-, 6-, 10-, 14-, 18- and 22-positions with (all-E)-configuration. COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Squalene is an intermediate product in the synthesis of cholesterol, and shows several pharmacological properties such as hypolipidemic, hepatoprotective, cardioprotective, antioxidant, and antitoxicant activity. Squalene also has anti-fungal activity and can be used for the research of Trichophyton mentagrophytes research[2]. Squalene is an intermediate product in the synthesis of cholesterol, and shows several pharmacological properties such as hypolipidemic, hepatoprotective, cardioprotective, antioxidant, and antitoxicant activity. Squalene also has anti-fungal activity and can be used for the research of Trichophyton mentagrophytes research[2].

   

Cycloartenol

(3R,6S,11S,12S,15R,16R)-7,7,12,16-tetramethyl-15-[(2R)-6-methylhept-5-en-2-yl]pentacyclo[9.7.0.0^{1,3}.0^{3,8}.0^{12,16}]octadecan-6-ol

C30H50O (426.386145)


Cycloartenol is found in alcoholic beverages. Cycloartenol is a constituent of Artocarpus integrifolia fruits and Solanum tuberosum (potato) Cycloartenol is a sterol precursor in photosynthetic organisms and plants. The biosynthesis of cycloartenol starts from the triterpenoid squalene. Its structure is also related to triterpenoid lanosterol Cycloartenol is a pentacyclic triterpenoid, a 3beta-sterol and a member of phytosterols. It has a role as a plant metabolite. It derives from a hydride of a lanostane. Cycloartenol is a natural product found in Euphorbia nicaeensis, Euphorbia boetica, and other organisms with data available. Constituent of Artocarpus integrifolia fruits and Solanum tuberosum (potato)

   

Farnesyl pyrophosphate

{[hydroxy({[(2E,6E)-3,7,11-trimethyldodeca-2,6,10-trien-1-yl]oxy})phosphoryl]oxy}phosphonic acid

C15H28O7P2 (382.1310198)


Farnesyl pyrophosphate is an intermediate in the HMG-CoA reductase pathway used by organisms in the biosynthesis of terpenes and terpenoids. -- Wikipedia [HMDB]. Farnesyl pyrophosphate is found in many foods, some of which are kumquat, macadamia nut, sweet bay, and agave. Farnesyl pyrophosphate is an intermediate in the HMG-CoA reductase pathway used by organisms in the biosynthesis of terpenes and terpenoids. -- Wikipedia.

   

Water

Sterile purified water in containers

H2O (18.0105642)


Water is a chemical substance that is essential to all known forms of life. It appears colorless to the naked eye in small quantities, though it is actually slightly blue in color. It covers 71\\% of Earths surface. Current estimates suggest that there are 1.4 billion cubic kilometers (330 million m3) of it available on Earth, and it exists in many forms. It appears mostly in the oceans (saltwater) and polar ice caps, but it is also present as clouds, rain water, rivers, freshwater aquifers, lakes, and sea ice. Water in these bodies perpetually moves through a cycle of evaporation, precipitation, and runoff to the sea. Clean water is essential to human life. In many parts of the world, it is in short supply. From a biological standpoint, water has many distinct properties that are critical for the proliferation of life that set it apart from other substances. It carries out this role by allowing organic compounds to react in ways that ultimately allow replication. All known forms of life depend on water. Water is vital both as a solvent in which many of the bodys solutes dissolve and as an essential part of many metabolic processes within the body. Metabolism is the sum total of anabolism and catabolism. In anabolism, water is removed from molecules (through energy requiring enzymatic chemical reactions) in order to grow larger molecules (e.g. starches, triglycerides and proteins for storage of fuels and information). In catabolism, water is used to break bonds in order to generate smaller molecules (e.g. glucose, fatty acids and amino acids to be used for fuels for energy use or other purposes). Water is thus essential and central to these metabolic processes. Water is also central to photosynthesis and respiration. Photosynthetic cells use the suns energy to split off waters hydrogen from oxygen. Hydrogen is combined with CO2 (absorbed from air or water) to form glucose and release oxygen. All living cells use such fuels and oxidize the hydrogen and carbon to capture the suns energy and reform water and CO2 in the process (cellular respiration). Water is also central to acid-base neutrality and enzyme function. An acid, a hydrogen ion (H+, that is, a proton) donor, can be neutralized by a base, a proton acceptor such as hydroxide ion (OH-) to form water. Water is considered to be neutral, with a pH (the negative log of the hydrogen ion concentration) of 7. Acids have pH values less than 7 while bases have values greater than 7. Stomach acid (HCl) is useful to digestion. However, its corrosive effect on the esophagus during reflux can temporarily be neutralized by ingestion of a base such as aluminum hydroxide to produce the neutral molecules water and the salt aluminum chloride. Human biochemistry that involves enzymes usually performs optimally around a biologically neutral pH of 7.4. (Wikipedia). Water, also known as purified water or dihydrogen oxide, is a member of the class of compounds known as homogeneous other non-metal compounds. Homogeneous other non-metal compounds are inorganic non-metallic compounds in which the largest atom belongs to the class of other nonmetals. Water can be found in a number of food items such as caraway, oxheart cabbage, alaska wild rhubarb, and japanese walnut, which makes water a potential biomarker for the consumption of these food products. Water can be found primarily in most biofluids, including ascites Fluid, blood, cerebrospinal fluid (CSF), and lymph, as well as throughout all human tissues. Water exists in all living species, ranging from bacteria to humans. In humans, water is involved in several metabolic pathways, some of which include cardiolipin biosynthesis CL(20:4(5Z,8Z,11Z,14Z)/18:0/20:4(5Z,8Z,11Z,14Z)/18:2(9Z,12Z)), cardiolipin biosynthesis cl(i-13:0/i-15:0/i-20:0/i-24:0), cardiolipin biosynthesis CL(18:0/18:0/20:4(5Z,8Z,11Z,14Z)/22:5(7Z,10Z,13Z,16Z,19Z)), and cardiolipin biosynthesis cl(a-13:0/i-18:0/i-13:0/i-19:0). Water is also involved in several metabolic disorders, some of which include de novo triacylglycerol biosynthesis tg(i-21:0/i-13:0/21:0), de novo triacylglycerol biosynthesis tg(22:0/20:0/i-20:0), de novo triacylglycerol biosynthesis tg(a-21:0/i-20:0/i-14:0), and de novo triacylglycerol biosynthesis tg(i-21:0/a-17:0/i-12:0). Water is a drug which is used for diluting or dissolving drugs for intravenous, intramuscular or subcutaneous injection, according to instructions of the manufacturer of the drug to be administered [fda label]. Water plays an important role in the world economy. Approximately 70\\% of the freshwater used by humans goes to agriculture. Fishing in salt and fresh water bodies is a major source of food for many parts of the world. Much of long-distance trade of commodities (such as oil and natural gas) and manufactured products is transported by boats through seas, rivers, lakes, and canals. Large quantities of water, ice, and steam are used for cooling and heating, in industry and homes. Water is an excellent solvent for a wide variety of chemical substances; as such it is widely used in industrial processes, and in cooking and washing. Water is also central to many sports and other forms of entertainment, such as swimming, pleasure boating, boat racing, surfing, sport fishing, and diving .

   

Oxygen

Molecular oxygen

O2 (31.98983)


Oxygen is the third most abundant element in the universe after hydrogen and helium and the most abundant element by mass in the Earths crust. Diatomic oxygen gas constitutes 20.9\\% of the volume of air. All major classes of structural molecules in living organisms, such as proteins, carbohydrates, and fats, contain oxygen, as do the major inorganic compounds that comprise animal shells, teeth, and bone. Oxygen in the form of O2 is produced from water by cyanobacteria, algae and plants during photosynthesis and is used in cellular respiration for all living organisms. Green algae and cyanobacteria in marine environments provide about 70\\% of the free oxygen produced on earth and the rest is produced by terrestrial plants. Oxygen is used in mitochondria to help generate adenosine triphosphate (ATP) during oxidative phosphorylation. For animals, a constant supply of oxygen is indispensable for cardiac viability and function. To meet this demand, an adult human, at rest, inhales 1.8 to 2.4 grams of oxygen per minute. This amounts to more than 6 billion tonnes of oxygen inhaled by humanity per year. At a resting pulse rate, the heart consumes approximately 8-15 ml O2/min/100 g tissue. This is significantly more than that consumed by the brain (approximately 3 ml O2/min/100 g tissue) and can increase to more than 70 ml O2/min/100 g myocardial tissue during vigorous exercise. As a general rule, mammalian heart muscle cannot produce enough energy under anaerobic conditions to maintain essential cellular processes; thus, a constant supply of oxygen is indispensable to sustain cardiac function and viability. However, the role of oxygen and oxygen-associated processes in living systems is complex, and they and can be either beneficial or contribute to cardiac dysfunction and death (through reactive oxygen species). Reactive oxygen species (ROS) are a family of oxygen-derived free radicals that are produced in mammalian cells under normal and pathologic conditions. Many ROS, such as the superoxide anion (O2-)and hydrogen peroxide (H2O2), act within blood vessels, altering mechanisms mediating mechanical signal transduction and autoregulation of cerebral blood flow. Reactive oxygen species are believed to be involved in cellular signaling in blood vessels in both normal and pathologic states. The major pathway for the production of ROS is by way of the one-electron reduction of molecular oxygen to form an oxygen radical, the superoxide anion (O2-). Within the vasculature there are several enzymatic sources of O2-, including xanthine oxidase, the mitochondrial electron transport chain, and nitric oxide (NO) synthases. Studies in recent years, however, suggest that the major contributor to O2- levels in vascular cells is the membrane-bound enzyme NADPH-oxidase. Produced O2- can react with other radicals, such as NO, or spontaneously dismutate to produce hydrogen peroxide (H2O2). In cells, the latter reaction is an important pathway for normal O2- breakdown and is usually catalyzed by the enzyme superoxide dismutase (SOD). Once formed, H2O2 can undergo various reactions, both enzymatic and nonenzymatic. The antioxidant enzymes catalase and glutathione peroxidase act to limit ROS accumulation within cells by breaking down H2O2 to H2O. Metabolism of H2O2 can also produce other, more damaging ROS. For example, the endogenous enzyme myeloperoxidase uses H2O2 as a substrate to form the highly reactive compound hypochlorous acid. Alternatively, H2O2 can undergo Fenton or Haber-Weiss chemistry, reacting with Fe2+/Fe3+ ions to form toxic hydroxyl radicals (-.OH). (PMID: 17027622, 15765131) [HMDB]. Oxygen is found in many foods, some of which are soy bean, watermelon, sweet basil, and spinach. Oxygen is the third most abundant element in the universe after hydrogen and helium and the most abundant element by mass in the Earths crust. Diatomic oxygen gas constitutes 20.9\\% of the volume of air. All major classes of structural molecules in living organisms, such as proteins, carbohydrates, and fats, contain oxygen, as do the major inorganic compounds that comprise animal shells, teeth, and bone. Oxygen in the form of O2 is produced from water by cyanobacteria, algae and plants during photosynthesis and is used in cellular respiration for all living organisms. Green algae and cyanobacteria in marine environments provide about 70\\% of the free oxygen produced on earth and the rest is produced by terrestrial plants. Oxygen is used in mitochondria to help generate adenosine triphosphate (ATP) during oxidative phosphorylation. For animals, a constant supply of oxygen is indispensable for cardiac viability and function. To meet this demand, an adult human, at rest, inhales 1.8 to 2.4 grams of oxygen per minute. This amounts to more than 6 billion tonnes of oxygen inhaled by humanity per year. At a resting pulse rate, the heart consumes approximately 8-15 ml O2/min/100 g tissue. This is significantly more than that consumed by the brain (approximately 3 ml O2/min/100 g tissue) and can increase to more than 70 ml O2/min/100 g myocardial tissue during vigorous exercise. As a general rule, mammalian heart muscle cannot produce enough energy under anaerobic conditions to maintain essential cellular processes; thus, a constant supply of oxygen is indispensable to sustain cardiac function and viability. However, the role of oxygen and oxygen-associated processes in living systems is complex, and they and can be either beneficial or contribute to cardiac dysfunction and death (through reactive oxygen species). Reactive oxygen species (ROS) are a family of oxygen-derived free radicals that are produced in mammalian cells under normal and pathologic conditions. Many ROS, such as the superoxide anion (O2-)and hydrogen peroxide (H2O2), act within blood vessels, altering mechanisms mediating mechanical signal transduction and autoregulation of cerebral blood flow. Reactive oxygen species are believed to be involved in cellular signaling in blood vessels in both normal and pathologic states. The major pathway for the production of ROS is by way of the one-electron reduction of molecular oxygen to form an oxygen radical, the superoxide anion (O2-). Within the vasculature there are several enzymatic sources of O2-, including xanthine oxidase, the mitochondrial electron transport chain, and nitric oxide (NO) synthases. Studies in recent years, however, suggest that the major contributor to O2- levels in vascular cells is the membrane-bound enzyme NADPH-oxidase. Produced O2- can react with other radicals, such as NO, or spontaneously dismutate to produce hydrogen peroxide (H2O2). In cells, the latter reaction is an important pathway for normal O2- breakdown and is usually catalyzed by the enzyme superoxide dismutase (SOD). Once formed, H2O2 can undergo various reactions, both enzymatic and nonenzymatic. The antioxidant enzymes catalase and glutathione peroxidase act to limit ROS accumulation within cells by breaking down H2O2 to H2O. Metabolism of H2O2 can also produce other, more damaging ROS. For example, the endogenous enzyme myeloperoxidase uses H2O2 as a substrate to form the highly reactive compound hypochlorous acid. Alternatively, H2O2 can undergo Fenton or Haber-Weiss chemistry, reacting with Fe2+/Fe3+ ions to form toxic hydroxyl radicals (-.OH). (PMID: 17027622, 15765131). V - Various > V03 - All other therapeutic products > V03A - All other therapeutic products > V03AN - Medical gases

   

(S)-2,3-Epoxysqualene

(3S)-2,2-Dimethyl-3-[(3E,7E,11E,15E)-3,7,12,16,20-pentamethyl-3,7,11,15,19-heneicosapentaen-1-yl]oxirane

C30H50O (426.386145)


(S)-2,3-Epoxysqualene, also known as 2,3-oxidosqualene or (S)-squalene-2,3-epoxide, belongs to the class of organic compounds known as triterpenoids. These are terpene molecules containing six isoprene units. Thus, (S)-2,3-epoxysqualene is considered to be an isoprenoid lipid molecule. (S)-2,3-Epoxysqualene is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. (S)-2,3-Epoxysqualene is an intermediate in the biosynthesis of terpenoid. It is a substrate for squalene monooxygenase and lanosterol synthase. (S)-2,3-Epoxysqualene is an intermediate in the biosynthesis of Terpenoid. It is a substrate for Squalene monooxygenase and Lanosterol synthase. [HMDB]. (S)-2,3-Epoxysqualene is found in many foods, some of which are new zealand spinach, lime, cassava, and cloves.

   

3-Epicycloeucalenol

7,12,16-trimethyl-15-(6-methyl-5-methylideneheptan-2-yl)pentacyclo[9.7.0.0¹,³.0³,⁸.0¹²,¹⁶]octadecan-6-ol

C30H50O (426.386145)


3-Epicycloeucalenol is found in fruits. 3-Epicycloeucalenol is a constituent of Musa sapientum (banana) fruit peel Constituent of Musa sapientum (banana) fruit peel. 3-Epicycloeucalenol is found in fruits.

   

Presqualene diphosphate

[({[(1S,2S,3S)-2-[(3E)-4,8-dimethylnona-3,7-dien-1-yl]-2-methyl-3-[(1E,5E)-2,6,10-trimethylundeca-1,5,9-trien-1-yl]cyclopropyl]methoxy}(hydroxy)phosphoryl)oxy]phosphonic acid

C30H52O7P2 (586.3188102)


Presqualene diphosphate is an intermediate in the biosynthesis of Terpenoid. It is a substrate for Farnesyl-diphosphate farnesyltransferase. [HMDB]. Presqualene diphosphate is found in many foods, some of which are soft-necked garlic, pomes, roman camomile, and white cabbage. Presqualene diphosphate is an intermediate in the biosynthesis of Terpenoid. It is a substrate for Farnesyl-diphosphate farnesyltransferase.

   

delta8,14-Sterol

(2S,5S,6S,7S,14R,15R)-2,6,15-trimethyl-14-[(2R)-6-methyl-5-methylideneheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadeca-1(10),11-dien-5-ol

C29H46O (410.3548466)


delta8,14-Sterol, also known as 4alpha-methyl-5alpha-ergosta-8,14,24(28)-trien-3beta-ol, belongs to the class of organic compounds known as ergosterols and derivatives. These are steroids containing ergosta-5,7,22-trien-3beta-ol or a derivative thereof, which is based on the 3beta-hydroxylated ergostane skeleton. Thus, delta8,14-sterol is considered to be a sterol lipid molecule. delta8,14-Sterol is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. delta8,14-Sterol is an intermediate in the biosynthesis of steroids and is converted from O-butusifoliol via the enzyme cytochrome P450, family 51, subfamily A (sterol 14-demethylase) (EC 1.14.13.70). It is then converted into 4-alpha-methylfecosterol via the enzyme delta14-sterol reductase (EC 1.3.1.70). Constituent of wheat germ oil (Triticum aestivum)

   

24-Methylenelophenol

(1R,2S,5S,6S,7S,11R,14R,15R)-2,6,15-trimethyl-14-[(2R)-6-methyl-5-methylideneheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-9-en-5-ol

C29H48O (412.37049579999996)


24-Methylenelophenol is involved in the biosynthesis of steroids. 24-Methylenelophenol is converted from 4alpha-methylfecosterol by cholestenol delta-isomerase (EC: 5.3.3.5). 24-Methylenelophenol is converted into 24-ethylidenelophenol by 24-methylenesterol C-methyltransferase (EC 2.1.1.143). 24-Methylenelophenol can also be converted into episterol.

   

(3beta,4beta,5alpha)-4-Methylergosta-7,24(28)-dien-3-ol

(1R,2S,5S,6S,7S,11R,14R,15R)-2,6,15-trimethyl-14-[(2R,5Z)-5-(propan-2-yl)hept-5-en-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-9-en-5-ol

C30H50O (426.386145)


(3beta,4beta,5alpha)-4-Methylergosta-7,24(28)-dien-3-ol is isolated from marigold (Calendula officinalis) flowers.

   

24-Methylenecholesterol

(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methyl-5-methylideneheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol

C28H46O (398.3548466)


24-Methylenecholesterol, also known as chalinasterol or ostreasterol, belongs to the class of organic compounds known as ergosterols and derivatives. These are steroids containing ergosta-5,7,22-trien-3beta-ol or a derivative thereof, which is based on the 3beta-hydroxylated ergostane skeleton. Thus, 24-methylenecholesterol is considered to be a sterol lipid molecule. 24-Methylenecholesterol is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. 24-Methylenecholesterol is involved in the biosynthesis of steroids. 24-Methylenecholesterol is converted from 5-dehydroepisterol by 7-dehydrocholesterol reductase (EC 1.3.1.21). 24-Methylenecholesterol is converted into campesterol by delta24-sterol reductase (EC 1.3.1.72). 24-methylenecholesterol is a 3beta-sterol having the structure of cholesterol with a methylene group at C-24. It has a role as a mouse metabolite. It is a 3beta-sterol and a 3beta-hydroxy-Delta(5)-steroid. It is functionally related to a cholesterol. 24-Methylenecholesterol is a natural product found in Echinometra lucunter, Ulva fasciata, and other organisms with data available. A 3beta-sterol having the structure of cholesterol with a methylene group at C-24. Constituent of clams and oysters 24-Methylenecholesterol (Ostreasterol), a natural marine sterol, stimulates cholesterol acyltransferase in human macrophages. 24-Methylenecholesterol possess anti-aging effects in yeast. 24-methylenecholesterol enhances honey bee longevity and improves nurse bee physiology[1][2][3].

   

Hydrogen Ion

Hydrogen cation

H+ (1.0078246)


Hydrogen ion, also known as proton or h+, is a member of the class of compounds known as other non-metal hydrides. Other non-metal hydrides are inorganic compounds in which the heaviest atom bonded to a hydrogen atom is belongs to the class of other non-metals. Hydrogen ion can be found in a number of food items such as lowbush blueberry, groundcherry, parsley, and tarragon, which makes hydrogen ion a potential biomarker for the consumption of these food products. Hydrogen ion exists in all living organisms, ranging from bacteria to humans. In humans, hydrogen ion is involved in several metabolic pathways, some of which include cardiolipin biosynthesis cl(i-13:0/a-25:0/a-21:0/i-15:0), cardiolipin biosynthesis cl(a-13:0/a-17:0/i-13:0/a-25:0), cardiolipin biosynthesis cl(i-12:0/i-13:0/a-17:0/a-15:0), and cardiolipin biosynthesis CL(16:1(9Z)/22:5(4Z,7Z,10Z,13Z,16Z)/18:1(11Z)/22:5(7Z,10Z,13Z,16Z,19Z)). Hydrogen ion is also involved in several metabolic disorders, some of which include de novo triacylglycerol biosynthesis TG(20:3(8Z,11Z,14Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z)/22:5(7Z,10Z,13Z,16Z,19Z)), de novo triacylglycerol biosynthesis TG(18:2(9Z,12Z)/20:0/20:4(5Z,8Z,11Z,14Z)), de novo triacylglycerol biosynthesis TG(18:4(6Z,9Z,12Z,15Z)/18:3(9Z,12Z,15Z)/18:4(6Z,9Z,12Z,15Z)), and de novo triacylglycerol biosynthesis TG(24:0/20:5(5Z,8Z,11Z,14Z,17Z)/24:0). A hydrogen ion is created when a hydrogen atom loses or gains an electron. A positively charged hydrogen ion (or proton) can readily combine with other particles and therefore is only seen isolated when it is in a gaseous state or a nearly particle-free space. Due to its extremely high charge density of approximately 2×1010 times that of a sodium ion, the bare hydrogen ion cannot exist freely in solution as it readily hydrates, i.e., bonds quickly. The hydrogen ion is recommended by IUPAC as a general term for all ions of hydrogen and its isotopes. Depending on the charge of the ion, two different classes can be distinguished: positively charged ions and negatively charged ions . Hydrogen ion is recommended by IUPAC as a general term for all ions of hydrogen and its isotopes. Depending on the charge of the ion, two different classes can be distinguished: positively charged ions and negatively charged ions. Under aqueous conditions found in biochemistry, hydrogen ions exist as the hydrated form hydronium, H3O+, but these are often still referred to as hydrogen ions or even protons by biochemists. [Wikipedia])

   

formate

Formic acid, cromium (+3), sodium (4:1:1) salt

CHO2- (44.997654600000004)


Formate, also known as formic acid or methanoic acid, is a member of the class of compounds known as carboxylic acids. Carboxylic acids are compounds containing a carboxylic acid group with the formula -C(=O)OH. Formate is soluble (in water) and a weakly acidic compound (based on its pKa). Formate can be found in a number of food items such as mammee apple, chicory roots, malabar spinach, and grapefruit, which makes formate a potential biomarker for the consumption of these food products. Formate (IUPAC name: methanoate) is the anion derived from formic acid. Its formula is represented in various equivalent ways: CHOO‚àí or HCOO‚àí or HCO2‚àí. It is the product of deprotonation of formic acid. It is the simplest carboxylate anion. A formate (compound) is a salt or ester of formic acid . Formate, also known as formic acid or methanoic acid, is a member of the class of compounds known as carboxylic acids. Carboxylic acids are compounds containing a carboxylic acid group with the formula -C(=O)OH. Formate is soluble (in water) and a weakly acidic compound (based on its pKa). Formate can be found in a number of food items such as mammee apple, chicory roots, malabar spinach, and grapefruit, which makes formate a potential biomarker for the consumption of these food products. Formate (IUPAC name: methanoate) is the anion derived from formic acid. Its formula is represented in various equivalent ways: CHOO− or HCOO− or HCO2−. It is the product of deprotonation of formic acid. It is the simplest carboxylate anion. A formate (compound) is a salt or ester of formic acid .

   

S-Adenosyl-L-methionine

S-Adenosyl-L-methionine

C15H23N6O5S+ (399.1450568)


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Coenzyme II

Coenzyme II

C21H25N7O17P3-3 (740.051977)


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[Hydroxy(oxido)phosphoryl] phosphate

[Hydroxy(oxido)phosphoryl] phosphate

HO7P2-3 (174.9197556)


COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS

   

5-S-[(3S)-3-azaniumyl-3-carboxylatopropyl]-5-thioadenosine

5-S-[(3S)-3-azaniumyl-3-carboxylatopropyl]-5-thioadenosine

C14H20N6O5S (384.12158300000004)


   

4alpha,14-Dimethyl-5alpha-ergosta-8,24(28)-dien-3beta-ol

4alpha,14-Dimethyl-5alpha-ergosta-8,24(28)-dien-3beta-ol

C30H50O (426.386145)