d-alpha tocopherol has been researched along with 2,5,7,8-tetramethyl-2-(2'-carboxyethyl)-6-hydroxychroman in 31 studies
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 0 (0.00) | 18.7374 |
| 1990's | 5 (16.13) | 18.2507 |
| 2000's | 20 (64.52) | 29.6817 |
| 2010's | 5 (16.13) | 24.3611 |
| 2020's | 1 (3.23) | 2.80 |
| Authors | Studies |
|---|---|
| Brigelius-Flohé, R; Gassmann, B; Leist, M; Petrzika, M; Schultz, M | 1 |
| Gassmann, B; Petrizka, M; Schönfeld, A; Schultz, M | 1 |
| Brigelius-Flohé, R; Elsner, A; Leist, M; Schultz, M | 1 |
| Brigelius-Flohé, R; Elsner, A; Traber, MG | 1 |
| Brigelius-Flohé, R; Graf, P; Sies, H; Stahl, W; Wechter, W | 1 |
| Brigelius-Flohé, R; Elsner, A; Finckh, B; Hübner, C; Kohlschütter, A; Schuelke, M | 1 |
| Clayton, PT; Muller, DP; Pope, SA | 1 |
| Leonard, S; Lodge, JK; Ridlington, J; Traber, MG; Vaule, H | 1 |
| Dunster, C; Galli, F; Kelly, FJ; Lee, R | 1 |
| Graf, P; Polidori, MC; Radosavac, D; Sies, H; Stahl, W | 1 |
| Burtin, GE; Clayton, PT; Madge, DJ; Muller, DP; Pope, SA | 1 |
| Betancor-Fernandez, A; Polidori, MC; Sies, H; Stahl, W | 1 |
| Hamamura, K; Morinobu, T; Tamai, H; Yoshikawa, S | 1 |
| Hall, WL; Jeanes, YM; Lodge, JK; Proteggente, AR | 1 |
| Mazzini, F; Netscher, T; Salvadori, P | 1 |
| Bray, TM; Bruno, RS; Montine, TJ; Ramakrishnan, R; Traber, MG | 1 |
| Kelly, FJ; Lee, R; Mudway, IS | 1 |
| Brigelius-Flohé, R; Ribalta, J; Rock, E; Roob, JM; Tiran, B; Winklhofer-Roob, BM; Wuga, S | 1 |
| Hamamura, K; Hirahara, F; Iwamoto, T; Morinobu, T; Tamai, H; Yoshikawa, S | 1 |
| Devereaux, MW; Leonard, SW; Mustacich, DJ; Sokol, RJ; Traber, MG | 1 |
| Abe, C; Ichikawa, T; Ikeda, S; Uchida, T; Yamashita, K | 1 |
| Li, YJ; Shaw, HM | 1 |
| Cheng, CC; Huang, CJ; Kuo, YH; Lee, YJ; Li, YJ; Lin, FJ; Luo, SC; Wein, YS | 1 |
| Burnett, JR; Clarke, MW; Croft, KD; Hodgson, JM; Ledowski, T; Puddey, IB; Wu, JH | 1 |
| Leonard, SW; Traber, MG | 1 |
| Fukuwatari, T; Imai, E; Sano, M; Shibata, K; Tsuji, T | 1 |
| Abe, C; Ichikawa, T; Ikeda, S; Nomura, S; Uchida, T | 1 |
| Card, DJ; Farley, SM; Harrington, DJ; Labut, EM; Leonard, SW; Mustacich, DJ; Raines, HF; Traber, MG | 1 |
| Abel, ED; Lim, CS; Mossalam, M; Soto, J | 1 |
| Ikeda, S; Nomura, S; Oda, H; Uchida, T | 1 |
| Bruno, RS; Dey, P; Erdman, JW; Jeon, S; Kuchan, MJ; Neuringer, M; Ranard, KM; Sasaki, GY; Schimpf, KJ | 1 |
4 trial(s) available for d-alpha tocopherol and 2,5,7,8-tetramethyl-2-(2'-carboxyethyl)-6-hydroxychroman
| Article | Year |
|---|---|
Synthetic as compared with natural vitamin E is preferentially excreted as alpha-CEHC in human urine: studies using deuterated alpha-tocopheryl acetates.
Topics: Adult; alpha-Tocopherol; Chromans; Deuterium; Female; Humans; Male; Middle Aged; Propionates; Tocopherols; Vitamin E | 1998 |
Alpha- and gamma-tocotrienols are metabolized to carboxyethyl-hydroxychroman derivatives and excreted in human urine.
Topics: Chromans; Chromatography, High Pressure Liquid; Dietary Supplements; Female; Humans; Kinetics; Male; Propionates; Tocotrienols; Vitamin E | 2001 |
{alpha}-Tocopherol disappearance is faster in cigarette smokers and is inversely related to their ascorbic acid status.
Topics: Adult; alpha-Tocopherol; Antioxidants; Ascorbic Acid; Chromans; Female; Humans; Isoprostanes; Male; Oxidative Stress; Propionates; Smoking | 2005 |
Vitamin E supplementation and hepatic drug metabolism in humans.
Topics: Adult; alpha-Tocopherol; Area Under Curve; Biotransformation; Chromans; Cytochrome P-450 CYP3A; Dietary Supplements; Double-Blind Method; Drug Interactions; Female; gamma-Tocopherol; Humans; Liver; Male; Midazolam; Middle Aged; Pharmaceutical Preparations; Propionates; Vitamin E | 2009 |
27 other study(ies) available for d-alpha tocopherol and 2,5,7,8-tetramethyl-2-(2'-carboxyethyl)-6-hydroxychroman
| Article | Year |
|---|---|
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?
Topics: Biomarkers; Chromans; Drug Stability; Humans; Male; Propionates; Vitamin E | 1995 |
A novel metabolite of RRR-alpha-tocopherol in human urine.
Topics: Chromans; Chromatography, Thin Layer; Gas Chromatography-Mass Spectrometry; Humans; Male; Propionates; Vitamin E | 1993 |
alpha-Carboxyethyl-6-hydroxychroman as urinary metabolite of vitamin E.
Topics: Animals; Biomarkers; Chromans; Chromatography, Gas; Chromatography, High Pressure Liquid; Gas Chromatography-Mass Spectrometry; Glucuronates; Humans; Hydrolysis; Molecular Structure; Nutrition Assessment; Nutritional Requirements; Propionates; Sensitivity and Specificity; Vitamin E | 1997 |
Quantification of the alpha- and gamma-tocopherol metabolites 2,5,7, 8-tetramethyl-2-(2'-carboxyethyl)-6-hydroxychroman and 2,7, 8-trimethyl-2-(2'-carboxyethyl)-6-hydroxychroman in human serum.
Topics: Adult; Chromans; Chromatography, High Pressure Liquid; Electrochemistry; Humans; Middle Aged; Propionates; Reproducibility of Results; Vitamin E | 1999 |
Urinary alpha-tocopherol metabolites in alpha-tocopherol transfer protein-deficient patients.
Topics: Adolescent; Adult; Ataxia; Carrier Proteins; Chromans; Dietary Supplements; Female; Humans; Male; Mass Spectrometry; Oxidation-Reduction; Pentanoic Acids; Propionates; Vitamin E; Vitamin E Deficiency | 2000 |
A new method for the analysis of urinary vitamin E metabolites and the tentative identification of a novel group of compounds.
Topics: Animals; Chromans; Deuterium; Gas Chromatography-Mass Spectrometry; Humans; Methods; Oxidative Stress; Propionates; Rats; Reproducibility of Results; Vitamin E | 2000 |
Gas chromatography mass spectrometry analysis of carboxyethyl-hydroxychroman metabolites of alpha- and gamma-tocopherol in human plasma.
Topics: alpha-Tocopherol; Chromans; Chromatography, High Pressure Liquid; Dietary Supplements; Free Radicals; gamma-Tocopherol; Gas Chromatography-Mass Spectrometry; Humans; Propionates; Time Factors; Vitamin E | 2002 |
Tocopherol metabolites 2, 5, 7, 8-tetramethyl-2-(2'-carboxyethyl)-6-hydroxychroman (alpha-CEHC) and 2, 7, 8-trimethyl-2-(2'-carboxyethyl)-6-hydroxychroman (gamma-CEHC) in human serum after a single dose of natural vitamin E.
Topics: Adult; alpha-Tocopherol; Biological Availability; Chromans; Chromatography, High Pressure Liquid; Female; gamma-Tocopherol; Humans; Isomerism; Male; Propionates; Tocopherols; Vitamin E | 2002 |
Synthesis and analysis of conjugates of the major vitamin E metabolite, alpha-CEHC.
Topics: alpha-Tocopherol; Chromans; Free Radicals; Humans; Mass Spectrometry; Models, Chemical; Propionates; Spectrometry, Mass, Electrospray Ionization; Vitamin E | 2002 |
In vitro antioxidant activity of 2,5,7,8-tetramethyl-2-(2'-carboxyethyl)-6-hydroxychroman (alpha-CEHC), a vitamin E metabolite.
Topics: Antioxidants; Ascorbic Acid; Chromans; Dose-Response Relationship, Drug; Humans; In Vitro Techniques; Models, Chemical; Nitrogen; Oxygen; Peroxynitrous Acid; Propionates; Spectrometry, Fluorescence; Time Factors; Tyrosine; Vitamin E | 2002 |
Measurement of vitamin E metabolites by high-performance liquid chromatography during high-dose administration of alpha-tocopherol.
Topics: Adult; alpha-Tocopherol; Antioxidants; Area Under Curve; Chromans; Chromatography, High Pressure Liquid; Humans; Male; Propionates; Vitamin E | 2003 |
Cigarette smokers have decreased lymphocyte and platelet alpha-tocopherol levels and increased excretion of the gamma-tocopherol metabolite gamma-carboxyethyl-hydroxychroman (gamma-CEHC).
Topics: Adult; alpha-Tocopherol; Antioxidants; Ascorbic Acid; Blood Platelets; Chromans; Dinoprost; Female; Humans; Lymphocytes; Male; Middle Aged; Propionates; Smoking; Uric Acid | 2004 |
First synthesis of rac-(5-2H3)-alpha-CEHC, a labeled analogue of a major vitamin E metabolite.
Topics: Chromans; Gas Chromatography-Mass Spectrometry; Magnetic Resonance Spectroscopy; Propionates; Vitamin E | 2004 |
Inter- and intra-individual vitamin E uptake in healthy subjects is highly repeatable across a wide supplementation dose range.
Topics: Adult; alpha-Tocopherol; Chromans; Dietary Supplements; Female; Humans; Lactones; Male; Middle Aged; Phenotype; Propionates; Quinones; Reproducibility of Results; Vitamin E | 2004 |
The effect of age on vitamin E status, metabolism, and function: metabolism as assessed by labeled tocopherols.
Topics: Absorption; Adult; Aged; Aging; alpha-Tocopherol; Austria; Chromans; Deuterium; gamma-Tocopherol; Humans; Male; Middle Aged; Nutritional Status; Propionates; Tocopherols; Vitamin E | 2004 |
The effect of gamma-tocopherol administration on alpha-tocopherol levels and metabolism in humans.
Topics: Adult; alpha-Tocopherol; Antioxidants; Biological Availability; Chromans; Chromatography, High Pressure Liquid; gamma-Tocopherol; Humans; Male; Propionates; Sodium; Vitamin E | 2005 |
Alpha-tocopherol regulation of hepatic cytochrome P450s and ABC transporters in rats.
Topics: alpha-Tocopherol; Animals; ATP-Binding Cassette Transporters; Chromans; Cytochrome P-450 Enzyme System; Injections, Subcutaneous; Liver; Liver Extracts; Male; Models, Molecular; Propionates; Rats; Rats, Sprague-Dawley; Time Factors | 2006 |
Dietary sesame seed decreases urinary excretion of alpha- and gamma-tocopherol metabolites in rats.
Topics: alpha-Tocopherol; Animals; Chromans; gamma-Tocopherol; Kidney; Liver; Lung; Male; Propionates; Rats; Rats, Wistar; Seeds; Sesamum | 2007 |
Pregnenolone and dexamethasone, modulators of cytochrome P450-3A, not increase but reduce urinary alpha-CEHC excretion in rats.
Topics: alpha-Tocopherol; Animals; Chromans; Cytochrome P-450 CYP3A; Dexamethasone; Ketoconazole; Liver; Male; Pregnenolone Carbonitrile; Propionates; Rats; Rats, Wistar; Thiobarbituric Acid Reactive Substances | 2007 |
Isolation and identification of alpha-CEHC sulfate in rat urine and an improved method for the determination of conjugated alpha-CEHC.
Topics: alpha-Tocopherol; Animals; Chromans; Chromatography, High Pressure Liquid; Hydrochloric Acid; Hydrolysis; Propionates; Rats; Rats, Wistar | 2008 |
Measurement of the vitamin E metabolites, carboxyethyl hydroxychromans (CEHCs), in biological samples.
Topics: Animals; Chromans; Chromatography, High Pressure Liquid; Humans; Mass Spectrometry; Propionates; Vitamin E | 2006 |
Association between 24 hour urinary α-tocopherol catabolite, 2,5,7,8-tetramethyl-2(2'-carboxyethyl)-6-hydroxychroman (α-CEHC) and α-tocopherol intake in intervention and cross-sectional studies.
Topics: Adolescent; Adult; alpha-Tocopherol; Biomarkers; Chromans; Cross-Sectional Studies; Diet Records; Dietary Supplements; Female; Humans; Male; Propionates; Reproducibility of Results; Urinalysis; Young Adult | 2011 |
Tissue distribution of vitamin E metabolites in rats after oral administration of tocopherol or tocotrienol.
Topics: 14-alpha Demethylase Inhibitors; Administration, Oral; alpha-Tocopherol; Animals; Biological Transport; Chromans; gamma-Tocopherol; Intestine, Small; Kidney; Liver; Male; Organ Specificity; Propionates; Rats; Rats, Wistar; Tocotrienols; Vitamin E | 2011 |
Vitamin E decreases extra-hepatic menaquinone-4 concentrations in rats fed menadione or phylloquinone.
Topics: Administration, Oral; alpha-Tocopherol; Animals; ATP-Binding Cassette Transporters; Biotransformation; Chromans; Cytochrome P-450 Enzyme System; Dietary Supplements; Gene Expression Regulation; Injections, Subcutaneous; Liver; Male; Propionates; Random Allocation; Rats; Rats, Sprague-Dawley; RNA, Messenger; Tissue Distribution; Vitamin E; Vitamin K 1; Vitamin K 2; Vitamin K 3 | 2012 |
Solid phase synthesis of mitochondrial triphenylphosphonium-vitamin E metabolite using a lysine linker for reversal of oxidative stress.
Topics: Animals; Cattle; Chromans; Lysine; Mass Spectrometry; Mice; Mitochondria; Organophosphorus Compounds; Oxidative Stress; Propionates; Reactive Oxygen Species; Solid-Phase Synthesis Techniques; Vitamin E | 2013 |
γ-Tocopherol Is Metabolized Faster than α-Tocopherol in Young Japanese Women.
Topics: Adult; alpha-Tocopherol; Chromans; Chromatography, High Pressure Liquid; Diet; Eating; Female; gamma-Tocopherol; Humans; Japan; Nutritional Status; Propionates; Young Adult | 2018 |
Infant Rhesus Macaque Brain α-Tocopherol Stereoisomer Profile Is Differentially Impacted by the Source of α-Tocopherol in Infant Formula.
Topics: alpha-Tocopherol; Animal Feed; Animals; Brain Chemistry; Carrier Proteins; Chromans; Diet; Gene Expression Regulation; Humans; Infant; Infant Food; Macaca mulatta; Milk; Propionates | 2020 |