NCBI Taxonomy: 485821
Guarea kunthiana (ncbi_taxid: 485821)
found 60 associated metabolites at species taxonomy rank level.
Ancestor: Guarea
Child Taxonomies: none taxonomy data.
alpha-Tocopherol
Alpha-tocopherol is a pale yellow, viscous liquid. (NTP, 1992) (R,R,R)-alpha-tocopherol is an alpha-tocopherol that has R,R,R configuration. The naturally occurring stereoisomer of alpha-tocopherol, it is found particularly in sunflower and olive oils. It has a role as an antioxidant, a nutraceutical, an antiatherogenic agent, an EC 2.7.11.13 (protein kinase C) inhibitor, an anticoagulant, an immunomodulator, an antiviral agent, a micronutrient, an algal metabolite and a plant metabolite. It is an enantiomer of a (S,S,S)-alpha-tocopherol. In 1922, vitamin E was demonstrated to be an essential nutrient. Vitamin E is a term used to describe 8 different fat soluble tocopherols and tocotrienols, alpha-tocopherol being the most biologically active. Vitamin E acts as an antioxidant, protecting cell membranes from oxidative damage. The antioxidant effects are currently being researched for use in the treatment of diseases causing bone loss, cardiovascular diseases, diabetes mellitus and associated comorbidities, eye diseases, inflammatory diseases (including skin conditions), lipid disorders, neurological diseases, and radiation damage. Though this research is so far inconclusive, vitamin E remains a popular supplement and is generally considered safe by the FDA. Vitamin E is a natural product found in Monteverdia ilicifolia, Calea jamaicensis, and other organisms with data available. Alpha-Tocopherol is the orally bioavailable alpha form of the naturally-occurring fat-soluble vitamin E, with potent antioxidant and cytoprotective activities. Upon administration, alpha-tocopherol neutralizes free radicals, thereby protecting tissues and organs from oxidative damage. Alpha-tocopherol gets incorporated into biological membranes, prevents protein oxidation and inhibits lipid peroxidation, thereby maintaining cell membrane integrity and protecting the cell against damage. In addition, alpha-tocopherol inhibits the activity of protein kinase C (PKC) and PKC-mediated pathways. Alpha-tocopherol also modulates the expression of various genes, plays a key role in neurological function, inhibits platelet aggregation and enhances vasodilation. Compared with other forms of tocopherol, alpha-tocopherol is the most biologically active form and is the form that is preferentially absorbed and retained in the body. A generic descriptor for all tocopherols and tocotrienols that exhibit alpha-tocopherol activity. By virtue of the phenolic hydrogen on the 2H-1-benzopyran-6-ol nucleus, these compounds exhibit varying degree of antioxidant activity, depending on the site and number of methyl groups and the type of isoprenoids. See also: Alpha-Tocopherol Acetate (is active moiety of); Tocopherol (related); Vitamin E (related) ... View More ... alpha-Tocopherol is traditionally recognized as the most active form of vitamin E in humans and is a powerful biological antioxidant. The measurement of "vitamin E" activity in international units (IU) was based on fertility enhancement by the prevention of spontaneous abortions in pregnant rats relative to alpha-Tocopherol. Natural vitamin E exists in eight different forms or isomers: four tocopherols and four tocotrienols. In foods, the most abundant sources of vitamin E are vegetable oils such as palm oil, sunflower, corn, soybean, and olive oil. Nuts, sunflower seeds, and wheat germ are also good sources. Constituent of many vegetable oils such as soya and sunflower oils. Dietary supplement and nutrient. Nutriceutical with anticancer and antioxidant props. Added to fats and oils to prevent rancidity. The naturally-occurring tocopherol is a single stereoisomer; synthetic forms are a mixture of all eight possible isomers An alpha-tocopherol that has R,R,R configuration. The naturally occurring stereoisomer of alpha-tocopherol, it is found particularly in sunflower and olive oils. α-Tocopherol (alpha-tocopherol) is a type of vitamin E. Its E number is "E307". Vitamin E exists in eight different forms, four tocopherols and four tocotrienols. All feature a chromane ring, with a hydroxyl group that can donate a hydrogen atom to reduce free radicals and a hydrophobic side chain which allows for penetration into biological membranes. Compared to the others, α-tocopherol is preferentially absorbed and accumulated in humans. Vitamin E is found in a variety of tissues, being lipid-soluble, and taken up by the body in a wide variety of ways. The most prevalent form, α-tocopherol, is involved in molecular, cellular, biochemical processes closely related to overall lipoprotein and lipid homeostasis. Ongoing research is believed to be "critical for manipulation of vitamin E homeostasis in a variety of oxidative stress-related disease conditions in humans."[2] One of these disease conditions is the α-tocopherol role in the use by malaria parasites to protect themselves from the highly oxidative environment in erythrocytes.[3] DL-α-Tocopherol. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=16826-11-2 (retrieved 2024-06-29) (CAS RN: 10191-41-0). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). DL-alpha-Tocopherol is a synthetic vitamin E, with antioxidation effect. DL-alpha-Tocopherol protects human skin fibroblasts against the cytotoxic effect of UVB[1]. DL-alpha-Tocopherol is a synthetic vitamin E, with antioxidation effect. DL-alpha-Tocopherol protects human skin fibroblasts against the cytotoxic effect of UVB[1]. rel-α-Vitamin E (rel-D-α-Tocopherol) is a vitamin with antioxidant properties and also a mixture[1]. α-Vitamin E ((+)-α-Tocopherol), a naturally occurring vitamin E form, is a potent antioxidant[1][2]. α-Vitamin E ((+)-α-Tocopherol), a naturally occurring vitamin E form, is a potent antioxidant[1][2].
Delta-Tocopherol
Tocopherol, or Vitamin E, is a fat-soluble vitamin in eight forms that is an important antioxidant. Vitamin E is often used in skin creams and lotions because it is believed to play a role in encouraging skin healing and reducing scarring after injuries such as burns. -- Wikipedia; Natural vitamin E exists in eight different forms or isomers, four tocopherols and four tocotrienols. All isomers have a chromanol ring, with a hydroxyl group which can donate a hydrogen atom to reduce free radicals and a hydrophobic side chain which allows for penetration into biological membranes. There is an alpha, beta, gamma and delta form of both the tocopherols and tocotrienols, determined by the number of methyl groups on the chromanol ring. Each form has its own biological activity, the measure of potency or functional use in the body. -- Wikipedia; Alpha-tocopherol is traditionally recognized as the most active form of vitamin E in humans, and is a powerful biological antioxidant. The measurement of "vitamin E" activity in international units (IU) was based on fertility enhancement by the prevention of spontaneous abortions in pregnant rats relative to alpha tocopherol. It increases naturally to about 150\\\\\% of normal in the maternal circulation during human pregnancies. 1 IU of vitamin E is defined as the biological equivalent of 0.667 milligrams of d-alpha-tocopherol, or of 1 milligram of dl-alpha-tocopherol acetate. The other isomers are slowly being recognized as research begins to elucidate their additional roles in the human body. Many naturopathic and orthomolecular medicine advocates suggest that vitamin E supplements contain at least 20\\\\\% by weight of the other natural vitamin E isomers. Commercially available blends of natural vitamin E include "mixed tocopherols" and "high gamma tocopherol" formulas. Also selenium, Coenzyme Q10, and ample vitamin C have been shown to be essential cofactors of natural tocopherols. -- Wikipedia; Synthetic vitamin E, usually marked as d,l-tocopherol or d,l tocopheryl acetate, with 50\\\\\% d-alpha tocopherol moiety and 50\\\\\% l-alpha-tocopherol moiety, as synthesized by an earlier process is now actually manufactured as all-racemic alpha tocopherol, with only about one alpha tocopherol molecule in 8 molecules as actual d-alpha tocpherol. The synthetic form is not as active as the natural alpha tocopherol form. The 1950s thalidomide disaster with numerous severe birth defects is a common example of d- vs l- epimer forms type problem with synthesized racemic mixtures. Information on any side effects of the synthetic vitamin E epimers is not readily available. Naturopathic and orthomolecular medicine advocates have long considered the synthetic vitamin E forms to be with little or no merit for cancer, circulatory and heart diseases. -- Wikipedia; Abetalipoproteinemia is a rare inherited disorder of fat metabolism that results in poor absorption of dietary fat and vitamin E. The vitamin E deficiency associated with this disease causes problems such as poor transmission of nerve impulses, muscle weakness, and degeneration of the retina that can cause blindness. Individuals with abetalipoproteinemia may be prescribed special vitamin E supplements by a physician to treat this disorder. -- Wikipedia; Recent studies also show that vitamin E acts as an effective free radical scavenger and can lower the incidence of lung cancer in smokers. The effects are opposite to that of the clinical trials based on administering carotenoid to male smokers, that resulted in increased risk of lung cancer. Hence vitamin E is an effective antagonist to the oxidative stress that is imposed by high carotenoids in certain patients. -- Wikipedia; A cataract is a condition of clouding of the tissue of the lens of the eye. They increase the risk of disability and blindness in aging adults. Antioxidants are being studied to determine whether they can help prevent or delay cataract growth. Observational studies have found that lens clarity, wh... Delta-Tocopherol is an isomer of Vitamin E. Delta-Tocopherol is an isomer of Vitamin E.
18-Deoxysagittarol
18-Deoxysagittarol is found in root vegetables. 18-Deoxysagittarol is a constituent of Sagittaria sagittifolia (arrowhead). Constituent of Sagittaria sagittifolia (arrowhead). 18-Deoxysagittarol is found in root vegetables.
Spathulenol
Spathulenol is a tricyclic sesquiterpenoid that is 4-methylidenedecahydro-1H-cyclopropa[e]azulene carrying three methyl substituents at positions 1, 1 and 7 as well as a hydroxy substituent at position 7. It has a role as a volatile oil component, a plant metabolite, an anaesthetic and a vasodilator agent. It is a sesquiterpenoid, a carbotricyclic compound, a tertiary alcohol and an olefinic compound. Spathulenol is a natural product found in Xylopia aromatica, Xylopia emarginata, and other organisms with data available. See also: Chamomile (part of). A tricyclic sesquiterpenoid that is 4-methylidenedecahydro-1H-cyclopropa[e]azulene carrying three methyl substituents at positions 1, 1 and 7 as well as a hydroxy substituent at position 7. Spathulenol is found in alcoholic beverages. Spathulenol is a constituent of Salvia sclarea (clary sage).
Alismoxide
Alismoxide is a natural product found in Curcuma phaeocaulis, Curcuma zedoaria, and other organisms with data available. Alismoxide is a natural product. Alismoxide is a natural product.
VITAMIN E
Window width to select the precursor ion was 3 Da.; CONE_VOLTAGE was 40 V.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 19HP8024 to the Mass Spectrometry Society of Japan. COVID info from COVID-19 Disease Map, clinicaltrial, clinicaltrials, clinical trial, clinical trials D020011 - Protective Agents > D000975 - Antioxidants D018977 - Micronutrients > D014815 - Vitamins Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Window width to select the precursor ion was 3 Da.; CONE_VOLTAGE was 15 V.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 19HP8024 to the Mass Spectrometry Society of Japan. Window width to select the precursor ion was 3 Da.; CONE_VOLTAGE was 20 V.; This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 19HP8024 to the Mass Spectrometry Society of Japan. DL-alpha-Tocopherol is a synthetic vitamin E, with antioxidation effect. DL-alpha-Tocopherol protects human skin fibroblasts against the cytotoxic effect of UVB[1]. DL-alpha-Tocopherol is a synthetic vitamin E, with antioxidation effect. DL-alpha-Tocopherol protects human skin fibroblasts against the cytotoxic effect of UVB[1]. rel-α-Vitamin E (rel-D-α-Tocopherol) is a vitamin with antioxidant properties and also a mixture[1]. α-Vitamin E ((+)-α-Tocopherol), a naturally occurring vitamin E form, is a potent antioxidant[1][2]. α-Vitamin E ((+)-α-Tocopherol), a naturally occurring vitamin E form, is a potent antioxidant[1][2].
Delta-Tocopherol
A tocopherol in which the chroman-6-ol core is substituted by a methyl group at position 8. It is found particularly in maize (corn) oil and soya bean (soybean) oils. D020011 - Protective Agents > D000975 - Antioxidants > D024505 - Tocopherols Delta-Tocopherol is an isomer of Vitamin E. Delta-Tocopherol is an isomer of Vitamin E.
18-Deoxysagittarol
Ephanyl
COVID info from COVID-19 Disease Map, clinicaltrial, clinicaltrials, clinical trial, clinical trials D020011 - Protective Agents > D000975 - Antioxidants D018977 - Micronutrients > D014815 - Vitamins Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS rel-α-Vitamin E (rel-D-α-Tocopherol) is a vitamin with antioxidant properties and also a mixture[1]. α-Vitamin E ((+)-α-Tocopherol), a naturally occurring vitamin E form, is a potent antioxidant[1][2]. α-Vitamin E ((+)-α-Tocopherol), a naturally occurring vitamin E form, is a potent antioxidant[1][2].
119-13-1
D020011 - Protective Agents > D000975 - Antioxidants > D024505 - Tocopherols Delta-Tocopherol is an isomer of Vitamin E. Delta-Tocopherol is an isomer of Vitamin E.
(R)-nephthenol
A cembrane diterpenoid obtained by regio- and stereoselective hydration of the exocyclic double bond of cembrene C.