PubMed:Antioxidants Abrogate Alpha-Tocopherylquinone-Mediated Down-Regulation of the Androgen Receptor in Androgen-Responsive Prostate Cancer Cells. |
PubMed:Molecular and Biochemical Analysis of the Estrogenic and Proliferative Properties of Vitamin E Compounds. |
PubMed:Effect of α-tocopherol on the hemin-catalyzed decomposition of 1-palmitoyl-2-linoleoyl-3-sn-phosphatidylcholine 13-hydroperoxide in micelles and liposomes. |
PubMed:Oxidative stress is involved in fatigue induced by overnight deskwork as assessed by increase in plasma tocopherylhydroqinone and hydroxycholesterol. |
PubMed:Serum levels of vitamin E forms and risk of cognitive impairment in a Finnish cohort of older adults. |
PubMed:A0001 in Friedreich ataxia: biochemical characterization and effects in a clinical trial. |
PubMed:Tocopherols and tocotrienols plasma levels are associated with cognitive impairment. |
PubMed:Towards a modern definition of vitamin E-evidence for a quinone hypothesis. |
PubMed:Circulating antioxidant profile of pregnant women with asthma. |
PubMed:Use of an adaptive study design in single ascending-dose pharmacokinetics of A0001 (α-tocopherylquinone) in healthy male subjects. |
PubMed:Antiseptic activity and phenolic constituents of the aerial parts of Vitex negundo var. cannabifolia. |
PubMed:α-Tocopherol quinone inhibits β-amyloid aggregation and cytotoxicity, disaggregates preformed fibrils and decreases the production of reactive oxygen species, NO and inflammatory cytokines. |
PubMed:Unusual antimalarial meroditerpenes from tropical red macroalgae. |
PubMed:Occurrence, biosynthesis and function of isoprenoid quinones. |
PubMed:Tocopherylquinone d-alpha an oxidized form of vitamin E increases mitochondrial uncoupling protein 2 expression in human umbilical vein endothelial cells in vitro. |
PubMed:New triterpenoids and other constituents from a special microbial-fermented tea-Fuzhuan brick tea. |
PubMed:Tocopheryl quinones and mitochondria. |
PubMed:Modulation of the mitochondrial cytochrome bc1 complex activity by chromanols and related compounds. |
PubMed:Endogenous adenosine selectively modulates oxidant stress via the A1 receptor in ischemic hearts. |
PubMed:Reperfusion does not induce oxidative stress but sustained endoplasmic reticulum stress in livers of rats subjected to traumatic-hemorrhagic shock. |
PubMed:[Role of alpha-tocopherol in oxidative stress of rat thymocytes induced by hydrogen peroxide and menadione]. |
PubMed:Gamma-tocopheryl quinone, not alpha-tocopheryl quinone, induces adaptive response through up-regulation of cellular glutathione and cysteine availability via activation of ATF4. |
PubMed:On-line liquid chromatography and circular dichroism detection of stereo-isomers of alpha-tocopherol derivatives generated by an electrochemical reaction. |
PubMed:Plasma tocopherols and risk of cognitive impairment in an elderly Italian cohort. |
PubMed:Tocopherylquinone and tocopherylhydroquinone. |
PubMed:Comprehensive analysis of vitamin E constituents in human plasma by liquid chromatography-mass spectrometry. |
PubMed:Biosynthesis, accumulation and emission of carotenoids, alpha-tocopherol, plastoquinone, and isoprene in leaves under high photosynthetic irradiance. |
PubMed:Addition products of alpha-tocopherol with lipid-derived free radicals. |
PubMed:Generation of superoxide and singlet oxygen from alpha-tocopherolquinone and analogues. |
PubMed:Vitamin E metabolism. |
PubMed:Oxidant stress and damage in post-ischemic mouse hearts: effects of adenosine. |
PubMed:Distribution of tocopheryl quinone in mitochondrial membranes and interference with ubiquinone-mediated electron transfer. |
PubMed:[Cytotoxic effect of vitamin E short-chain derivatives on rat thymocytes]. |
PubMed:New cytotoxic tetrahydrofuran- and dihydrofuran-type lignans from the stem of Beilschmiedia tsangii. |
PubMed:Effect of elevated temperature on development of tocopherolquinones in oils. |
PubMed:[Effect of alpha-tocopherol and its derivatives on actinomycin D induced apoptosis of rat thymocytes]. |
PubMed:Ebselen: a thioredoxin reductase-dependent catalyst for alpha-tocopherol quinone reduction. |
PubMed:Tocopherol metabolism using thermochemolysis: chemical and biological properties of gamma-tocopherol, gamma-carboxyethyl-hydroxychroman, and their quinones. |
PubMed:Enhanced ferredoxin-dependent cyclic electron flow around photosystem I and alpha-tocopherol quinone accumulation in water-stressed ndhB-inactivated tobacco mutants. |
PubMed:Cytotoxic chromenes from Myriactis humilis. |
PubMed:Oxidized vitamin E and ubiquinone: competition for binding sites of the mitochondrial cytochrome bc1 complex? |
PubMed:Molecular mechanisms of vitamin E transport. |
PubMed:Determination of alpha-tocopherolquinone in human serum samples by liquid chromatography with fluorescence detection and on-line post-column derivatization. |
PubMed:Redox-interaction of alpha-tocopheryl quinone with isolated mitochondrial cytochrome bc1 complex. |
PubMed:Alpha-tocopherol and alpha-tocopheryl quinone levels in cervical intraepithelial neoplasia and cervical cancer. |
PubMed:Prenatal cocaine administration increases glutathione and alpha-tocopherol oxidation in fetal rat brain. |
PubMed:Electrophile tocopheryl quinones in apoptosis and mutagenesis: thermochemolysis of thiol adducts with proteins and in cells. |
PubMed:Supernatant protein factor in complex with RRR-alpha-tocopherylquinone: a link between oxidized Vitamin E and cholesterol biosynthesis. |
PubMed:gamma-Tocopheryl quinone induces apoptosis in cancer cells via caspase-9 activation and cytochrome c release. |
PubMed:Mössbauer studies of the non-heme iron and cytochrome b559 in a Chlamydomonas reinhardtii PSI- mutant and their interactions with alpha-tocopherol quinone. |
PubMed:Mutagenicity of tocopheryl quinones: evolutionary advantage of selective accumulation of dietary alpha-tocopherol. |
PubMed:Determination of tocopherols, tocopherolquinones and tocopherolhydroquinones by gas chromatography-mass spectrometry and preseparation with lipophilic gel chromatography. |
PubMed:Abnormal incorporation and utilization of alpha-tocopherol in erythrocyte membranes of streptozotocin-induced diabetic rats. |
PubMed:[Effect of tocopherol and tocopherol quinone complexes with proteins on activity of leukotriene B4 lipoxygenase]. |
PubMed:Bioactive oxidized lipids in the plasma of cardiac surgical intensive care patients. |
PubMed:Analysis of vitamin E and its oxidation products by HPLC with electrochemical detection. |
PubMed:Iron-catalyzed reaction products of alpha-tocopherol with 1-palmitoyl-2-linoleoyl-3-sn-phosphatidylcholine (13S)-hydroperoxide. |
PubMed:Gamma-tocopheryl quinone stimulates apoptosis in drug-sensitive and multidrug-resistant cancer cells. |
PubMed:Vitamin E oxidation in human atherosclerotic lesions. |
PubMed:Comparison of gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry methods to quantify alpha-tocopherol and alpha-tocopherolquinone levels in human plasma. |
PubMed:[Effect of alpha-tocopherol, tocopheryl quinone and other complexes with tocopherol-binding proteins on the activity of enzymes metabolizing arachidonic acid]. |
PubMed:Neutral magnesium-dependent sphingomyelinase from liver plasma membrane: purification and inhibition by ubiquinol. |
PubMed:Effects of tocopheryl quinone on the heart: model experiments with xanthine oxidase, heart mitochondria, and isolated perfused rat hearts. |
PubMed:No reduction of alpha-tocopherol quinone by glutathione in rat liver microsomes. |
PubMed:Long-chain n-3 fatty acids specifically affect rat coagulation factors dependent on vitamin K: relation to peroxidative stress. |
PubMed:Polychlorinated biphenyl-induced effects on metabolic enzymes, AP-1 binding, vitamin E, and oxidative stress in the rat liver. |
PubMed:Determination of alpha-tocopherol and alpha-tocopherylquinone in rat tissues and plasma by high-performance liquid chromatography with electrochemical detection. |
PubMed:Antioxidant reactions of alpha-tocopherolhydroquinone. |
PubMed:Redox changes of cytochrome b(559) in the presence of plastoquinones. |
PubMed:Copper(II)-catalyzed oxidation of d-alpha-tocopherol by oxygen in aqueous solution. |
PubMed:Effects of UV light and tumor promoters on endogenous vitamin E status in mouse skin. |
PubMed:Age-related changes in alpha-tocopherol dynamics with relation to lipid hydroperoxide content and fluidity of rat erythrocyte membrane. |
PubMed:[Age-related change in the alpha-tocopherolquinone/alpha-tocopherol ratio in the rat erythrocyte membrane]. |
PubMed:Redox dynamics of alpha-tocopherol in erythrocyte membranes of elderly patients with asymptomatic primary hyperlipidemia. |
PubMed:Formation of phospholipid hydroperoxides and its inhibition by alpha-tocopherol in rat brain synaptosomes induced by peroxynitrite. |
PubMed:A function for the vitamin E metabolite alpha-tocopherol quinone as an essential enzyme cofactor for the mitochondrial fatty acid desaturases. |
PubMed:Protection by vitamin C of loss of vitamin E in cultured rat hepatocytes. |
PubMed:Binding of alpha-tocopherylquinone, an oxidized form of alpha-tocopherol, to glutathione-S-transferase in the liver cytosol. |
PubMed:Simultaneous determination of homologues of vitamin E and coenzyme Q and products of alpha-tocopherol oxidation. |
PubMed:Preparation and characterization of 8a-(phosphatidylcholine-dioxy)-alpha-tocopherones and their formation during the peroxidation of phosphatidylcholine in liposomes. |
PubMed:Alpha-tocopherol in rat brain subcellular fractions is oxidized rapidly during incubations with low concentrations of peroxynitrite. |
PubMed:The reduction of alpha-tocopherolquinone by human NAD(P)H: quinone oxidoreductase: the role of alpha-tocopherolhydroquinone as a cellular antioxidant. |
PubMed:Alpha-tocopheryl hydroquinone is an efficient multifunctional inhibitor of radical-initiated oxidation of low density lipoprotein lipids. |
PubMed:alpha-Tocopheryl quinone is converted into vitamin E in man. |
PubMed:Nitric oxide-induced oxidation of alpha-tocopherol. |
PubMed:Action of an antiserum to alpha-tocoquinone on photosystem II-particle preparations of Nicotiana tabacum. |
PubMed:The reaction between nitric oxide and alpha-tocopherol: a reappraisal. |
PubMed:A novel approach to study linoleic acid autoxidation: importance of simultaneous detection of the substrate and its derivative oxidation products. |
PubMed:Oxidation of alpha-tocopherol during the peroxidation of dilinoleoylphosphatidylcholine in liposomes. |
PubMed:alpha-Tocopherol quinone level is remarkably low in the cerebrospinal fluid of patients with sporadic amyotrophic lateral sclerosis. |
PubMed:Vitamin E and vitamin E-quinone levels in red blood cells and plasma of newborn infants and their mothers. |
PubMed:Simultaneous determination of alpha-tocopherol and alpha-tocopherolquinone by high-performance liquid chromatography and coulometric detection in the redox mode. |
PubMed:Novel urinary metabolite of alpha-tocopherol, 2,5,7,8-tetramethyl-2(2'-carboxyethyl)-6-hydroxychroman, as an indicator of an adequate vitamin E supply? |
PubMed:Human atherosclerotic plaque contains both oxidized lipids and relatively large amounts of alpha-tocopherol and ascorbate. |
PubMed:On the mechanism of the anticlotting action of vitamin E quinone. |
PubMed:Antioxidant and cytotoxic tocopheryl quinones in normal and cancer cells. |
PubMed:Tocopherols and 6-hydroxy-chroman-2-carbonitrile derivatives inhibit vascular smooth muscle cell proliferation by a nonantioxidant mechanism. |
PubMed:The oxidation of alpha-tocopherol and trolox by peroxynitrite. |
PubMed:Concentrations of alpha-tocopherol and its quinone derivative in cerebrospinal fluid from patients with vascular dementia of the Binswanger type and Alzheimer type dementia. |
PubMed:One- and two-electron reduction of quinones by rat liver subcellular fractions. |
PubMed:Increased susceptibility to oxidation of vitamin E in mitochondrial fractions compared with synaptosomal fractions from rat brains. |
PubMed:Determination of tocopherols and tocopherolquinone in human red blood cell and platelet samples. |
PubMed:A liquid chromatographic method for the simultaneous determination of alpha-tocopherol and tocopherolquinone in human red blood cells and other biological samples where tocopherol is easily oxidized during sample treatment. |
PubMed:Kinetic study of free-radical-scavenging action of biological hydroquinones (reduced forms of ubiquinone, vitamin K and tocopherol quinone) in solution. |
PubMed:Oxidation of alpha-tocopherol in subcellular fractions from rat brain and its possible involvement in nerve function. |
PubMed:[Effect of the complexes tocopherol-protein-acceptors and tocopherylquinone-protein-acceptors on the activity cytosol phospholipase A2 in rat liver]. |
PubMed:Linear dichroism and molecular orientation in Langmuir-Blodgett films of plastoquinones and alpha-tocopherol quinone. |
PubMed:The role of metabolism in the antioxidant function of vitamin E. |
PubMed:Requirement for coenzyme Q in plasma membrane electron transport. |
PubMed:Stimulation of serum-free cell proliferation by coenzyme Q. |
PubMed:Monolayer study of plastoquinones, alpha-tocopherol quinone, their hydroquinone forms and their interaction with monogalactosyldiacylglycerol. Charge-transfer complexes in a mixed monolayer. |
PubMed:Stopped-flow kinetic study of vitamin E regeneration reaction with biological hydroquinones (reduced forms of ubiquinone, vitamin K, and tocopherolquinone) in solution. |
PubMed:Reduction of alpha-tocopherolquinone to alpha-tocopherolhydroquinone in rat hepatocytes. |
PubMed:Antioxidant depletion in aortic crossclamping ischemia: increase of the plasma alpha-tocopheryl quinone/alpha-tocopherol ratio. |
PubMed:The oxidation products from two kinds of tocopherols co-existing in autoxidation system of methyl linoleate. |
PubMed:Ascorbic acid, glutathione and synthetic antioxidants prevent the oxidation of vitamin E in platelets. |
PubMed:Lipid peroxidation and antioxidant defense systems in rat liver after chronic ethanol feeding. |
PubMed:The effect of alpha-tocopherol and alpha-tocopheryl quinone on the radiosensitivity of thiol-depleted mammalian cells. |
PubMed:[Scavenging of active oxygen by vitamin E]. |
PubMed:Inhibition of phylloquinone epoxide reductase by BHT quinone methide, salicylic acid and alpha-tocopherolquinone. |
PubMed:Determination of alpha-tocopherolquinone (vitamin E quinone) in human serum, platelets, and red cell membrane samples. |
PubMed:In vitro oxidation of alpha-tocopherol (vitamin E) in human platelets upon incubation with unsaturated fatty acids, diamide and superoxide. |
PubMed:Simultaneous measurement of tocopherols and tocopheryl quinones in tissue fractions using high-performance liquid chromatography with redox-cycling electrochemical detection. |
PubMed:Solvent influence on model oxidations of alpha-tocopherol. |
PubMed:Determination of alpha-tocopherol and alpha-tocopherylquinone in small biological samples by high-performance liquid chromatography with electrochemical detection. |
PubMed:Relationship between cellular calcium and vitamin E metabolism during protection against cell injury. |
PubMed:Serum alpha-tocopherol levels after high-dose enteral vitamin E administration in patients with acute respiratory failure. |
PubMed:Use of alpha-tocopherylquinone in ulcerative colitis. |
PubMed:Use of alpha-tocopherylquinone in the treatment of ulcerative colitis. |
PubMed:Ulcerative colitis: the result of an altered bacterial metabolism of bile acids or cholesterol. |
PubMed:Deficiency of vitamin E in the alveolar fluid of cigarette smokers. Influence on alveolar macrophage cytotoxicity. |
PubMed:Effects of Low-Temperature Acclimation and Oxygen Stress on Tocopheron Production in Euglena gracilis Z. |
PubMed:Erythrocyte vitamin E is oxidized at a lower peroxide concentration in neonates than in adults. |
PubMed:[Effect of alpha-tocopherol on the concentration of alpha-tocopherylquinone in human blood lipids]. |
PubMed:Role of prostanoids and lipid peroxides as mediators of the 12-O-tetradecanoylphorbol-13-acetate effect on cell growth. |
PubMed:Inhibition of lipid peroxidation by alpha-tocopherolquinone and alpha-tocopherolhydroquinone. |
PubMed:Composition and function of plastoglobuli : I. Isolation and purification from chloroplasts and chromoplasts. |
PubMed:Simultaneous determination by high-performance liquid chromatography of tocopherol isomers, alpha-tocopheryl quinone, and cholesterol in red blood cells and plasma. |
PubMed:[Oxidation-reduction processes in the rat myocardium in acute hypoxia]. |
PubMed:Biochemical interaction of arachidonic acid and vitamin E in human platelets. |
PubMed:On the formation and measurement of alpha-tocopherolquinone and alpha-tocopherolhydroquinone in rat tissues. |
PubMed:Occurrence of alpha-tocopherolquinone and alpha-tocopherolquinol in microorganisms. |
PubMed:Image analysis for the automated estimation of clonal growth and its application to the growth of smooth muscle cells. |
PubMed:Regulation of cell division in a human glioma cell clone by arachidonic acid and alpha-tocopherolquinone. |
PubMed:[Effectiveness of different alpha-tocopherol derivatives in preventing experimental muscular dystrophy in chickens]. |
PubMed:On the occurrence of alpha-tocopherolquinone in rat tissue. |
PubMed:alpha-Tocopherolquinone in the rat: synthesis and mitochondrial reduction. |
PubMed:Photosynthetic apparatus of chilling-sensitive plants. IX. The involvement of alpha-tocopherol in the electron transport chain and the anti-oxidizing system in chloroplasts of tomato leaves. |
PubMed:Reduced intestinal absorption of vitamin E by low dietary levels of retinoic acid in rats. |
PubMed:Localization of prenylquinones in the envelope of spinach chloroplasts. |
PubMed:Alpha tocopherol quinone (alpha TQ): a potent inhibitor of platelet function. |
PubMed:Role of antioxidants on the stimulation of the mitogenic response. |
PubMed:Synthesis of alpha-tocopherolquinone by the rat and its reduction by mitochondria. |
PubMed:Physiological effects of photosystem II-herbicides on the development of the photosynthetic apparatus. |
PubMed:[Prooxidant effect of alpha-tocopherol on essential fatty acids in aqueous media]. |
PubMed:[E-vitamin activity of vitamin E derivatives with experimental encephalomalacia in chicks]. |
PubMed:[Effects of alpha-tocopherol derivatives on natural quinone levels in the tissues of vitamin E deficient rats]. |
PubMed:Studies on electron transfer systems in the marine diatom Phaeodactylum tricornutum. II. Identification and determination of quinones, cytochromes, and flavins. |
PubMed:Interfacial oxidation of alpha-tocopherol and the surface properties of its oxidation products. |
PubMed:Incorporation of (14)CO 2 in prenylquinones of Chlorella pyrenoidosa. |
PubMed:[Alpha-tocopherylquinone in the treatment leg ulcers and hypodermitis]. |
PubMed:alpha-Tocopherylquinone: effect on blood pressure in normotensive volunteers and its plasma concentrations in men and dogs. |
PubMed:[Behavior of alpha-tocopherol during the autoxidation of linoleic acid in aqueous solution]. |
PubMed:Sensitive fluorometric method for tissue tocopherol analysis. |
PubMed:Vitamin E: a reexamination. |
PubMed:[The dependence of the concentration of plastid quinones and pigments in Zea mays and Atriplex rosea on the light intensity and the age of the plants]. |
PubMed:Relationship Between alpha-Tocopherol and alpha-Tocopherylquinone in Mineral-deficient Maize Plants. |
PubMed:Alpha-tocopherol in the retinal outer segment of bovine eyes. |
PubMed:Electrochemical studies of the redox behavior of alpha-tocopherylquinone and a related model quinone. |
PubMed:Determination of alpha-tocopherol in erythrocytes by gas-liquid chromatography. |
PubMed:Comparative Studies on Plastoquinones: V. Changes in Lipophilic Chloroplast Quinones during Development. |
PubMed:The Occurence of delta-Tocopherylquinone in Higher Plants and Its Relation to Senescence. |
PubMed:Comparative Studies on Plastoquinones. IV. Plastoquinones in Algae. |
PubMed:[Study of iodine uptake by the thyroid of the golden hamster treated by vitamin E and alpha-tocopherylquinone]. |
PubMed:[Distribution and relative concentrations of lipophilic plastid quinones in green plants]. |
PubMed:[Effects of alpha-tocopherylquinone on the intestinal absorption of isotonic glucose solution and on oxygen consumption in the rat; a function of the percentage of oxygen in the environment]. |
PubMed:[Treatment of essential hypertension with tocopherylquinone]. |
PubMed:[Plastoglobuli in different types of plastids from Allium cepa L]. |
PubMed:Reductive cyclization of alpha-tocopherylquinone. |
PubMed:[CLINICAL CONSIDERATIONS ON THE USE OF TOCOPHERYLQUINONE IN THE TREATMENT OF ARTERIAL HYPERTENSION]. |
PubMed:[Formation of tocopheronlactone from apha-tocopherylquinone in the human organism]. |
PubMed:[TOCOPHEROL AND TOCOPHERYLQUINONE AS GROWTH FACTORS FOR FUSIFORMIS NIGRESCENS (PRELIMINARY REPORT)]. |
PubMed:[THE USE OF THIN-LAYER CHROMATOGRAPHY FOR THE SEPARATION OF 2,5,7,8-TETRAMETHYL-2-(BETA-CARBOXYETHYL)-6-HYDROXYCHROMAN AND TOCOPHERONOLACTONE FROM ALPHA-TOCOPHERYLQUINONE AND SOME TOCOPHEROLS]. |
PubMed:Light-Dependent Conversions of Endogenous alpha-Tocopherylquinone and Plastoquinone-D in Spinacia Oleracea Chloroplasts. |
PubMed:[ACTION OF TOCOPHERYLQUINONE IN ARTERIAL HYPERTENSION OF THE FIFTIES]. |
PubMed:THE ROLE OF ALPHA-TOCOPHERYLQUINONE IN THE ELECTRON-TRANSPORT SYSTEM OF CHLOROPLASTS. |
PubMed:LIGHT-INDUCED CHANGES OF ALPHA-TOCOPHERYLQUINONE IN SPINACH CHLOROPLASTS. |
PubMed:THE VITAMIN E ACTIVITY OF ALPHA-TOCOPHERYLQUINONE AND ALPHA-TOCOPHERYLHYDROQUINONE IN THE RAT. |
PubMed:[Action of alpha-tocopherylquinone in coronaritis]. |
PubMed:[Ambulatory treatment of essential hypertension. Apropos of 14 aged patients by tocopherylquinone]. |
PubMed:[Trial treatment of hypertension with a new hypotensive drug (trimethyl-tetramethyl-hexadecanone-olbenzoquinone or tocopherylquinone)]. |
PubMed:[Use of tocopherylquinone in the ambulatory therapy of arterial hypertension]. |
PubMed:[Comparative study of the various metabolic effects exerted by tocopherol and alpha-tocopheryl-quinone]. |
PubMed:[Action of I'alpha-tocopherylquinone on the genital glands]. |
PubMed:[Action of tocopheryl-quinone on arterial hypertension]. |
PubMed:[On an acute dermatomyositis treated with intravenous hydrocortisone and alpha-tocopheryl-quinone in alcoholic solution]. |
PubMed:[Action of 1'alpha-tocopherol and 1'alpha-tocopheryl quinone on adrenal glands in the rat]. |
PubMed:Ubiquinone and tocopherylquinone. |