Results 31 to 40 of about 882,947 (269)

The Antiproliferative Effect of Alpha Tocopherol in F98 Cell Culture

Proceedings, 2017
Alpha tocopherol is the most common and biologically active form of Vitamin E. The aim of this study was to evaulate the possible antiproliferative effect of alpha tocopherol on F-98 Glioblastoma cells. F-98 glioblastoma cell line was seeded at a density
Remzi Soner Cengiz, Ayşenur Gök, Efe Kurtdede, Görkem Kısmalı, Tevhide Sel   +4 more
doaj   +1 more source

Lack of correlation between the alpha-tocopherol content of plasma and LDL, but high correlations for gamma-tocopherol and carotenoids

Journal of Lipid Research, 1996
In 59 healthy human subjects (37 male and 22 female) the concentrations of the lipid-soluble antioxidants alpha- and gamma-tocopherol, alpha- and beta-carotene, lycopene, cryptoxanthin, canthaxanthin, and lutein + zeaxanthin were determined in plasma ...
O Ziouzenkova, B M Winklhofer-Roob, H Puhl, J M Roob, H Esterbauer   +4 more
doaj   +1 more source

Specific cellular responses to alpha-tocopherol.

, 2000
In the last 10 years precise cellular functions of alpha-tocopherol, some of which are independent of its antioxidant/radical-scavenging ability, have been revealed. Absorption of alpha-tocopherol from the gut is a selective process.
Zingg, J M, Azzi, Angelo, Spycher, S, Breyer, Isabel, Spycher, Stefan, Roberta Ricciarelli, Ricciarelli, Roberta, Azzi, A, Mariagrazia Staffieri, Pastori, Mariella, Zimmer, Sabine, Isabel Breyer, Ricciarelli, R, Angelo Azzi, Pastori, M, Breyer, I, Sabine Zimmer, Maria Feher, Feher, M, Feher, Maria, Stefan Spycher, Jean-Marc Zingg, Achim Stocker, Staffieri, M, Mariella Pastori, Staffieri, Mariagrazia, Stocker, Achim, Zimmer, S, Zingg, Jean-Marc   +28 more
core   +1 more source

α-Tocopherol in plasma and milk from organically managed dairy cows fed natural or synthetic vitamin E or seaweed [PDF]

, 2012
The objective was to compare the effects of supplementing lactating dairy cows with synthetic (All-rac), natural (RRR) α-tocopheryl acetate or seaweed with a control on the concentration of α-tocopherol in blood and milk.
Steinshamn, Håvard, Thuen, Erling, Luteberget, Ingvild Steinnes, Jensen, Søren K.   +3 more
core   +1 more source

Effect of the Enrichment of Corn Oil With alpha- or gamma-Tocopherol on Its In Vitro Digestion Studied by ¹H NMR and SPME-GC/MS; Formation of Hydroperoxy-, Hydroxy-, Keto-Dienes and Keto-E-epoxy-E-Monoenes in the More alpha-Tocopherol Enriched Samples

Antioxidants, 2020
The aim of this study is the analysis of the in vitro digestion of corn oil, and of the effect of its enrichment with three levels of gamma- and alpha-tocopherol, by using, for the first time, 1H nuclear magnetic resonance (1H NMR) and a solid phase ...
Jon Alberdi-Cedeño, María L. Ibargoitia, María D. Guillén   +2 more
doaj   +1 more source

Nonantioxidant functions of alpha-tocopherol in smooth muscle cells.

, 2001
Most tocopherols and tocotrienols, with the exception of alpha-tocopherol, are not retained by humans. This suggests that alpha-tocopherol is recognized uniquely; therefore, it may exert an exclusive function.
Feher, M, Azzi, Angelo, Feher, Maria, Breyer, Isabel, Jean-Marc Zingg, Achim Stocker, Roberta Ricciarelli, Ricciarelli, Roberta, Azzi, A, Zimmer, Sabine, Stocker, Achim, Isabel Breyer, Ricciarelli, R, Zimmer, S, Angelo Azzi, Breyer, I, Sabine Zimmer, Zingg, J, Maria Feher, Zingg, Jean-Marc   +19 more
core   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

The Cancer Cell Metabolic Reprogramming Remodels the Tumor Microenvironment: Molecular Mechanisms and Therapeutic Strategies

Advanced Science, EarlyView.
This review elucidates how cancer cell metabolic reprogramming—across glucose, lipid, amino acid, and nucleotide pathways—remodels the tumor microenvironment to suppress anti‐tumor immunity and promote immune escape. Targeting these metabolic axes offers promising strategies to overcome immunotherapy resistance and enhance cancer treatment.
Guoqing Xiang, Zhicheng Zhou, Xue Jiang, Zhenguang Du, Yangyang Zhan, Xinli Liu   +5 more
wiley   +1 more source

Routine assay for determination of alpha-tocopherol in liver.

Journal of Lipid Research, 1980
A rapid and accurate procedure for determination of alpha-tocopherol in liver has been developed. Extracts of saponified liver homogenates were purified by a simple and efficient chromatography step on Kieselgel.
A W Kormann
doaj   +1 more source

Seasonal Fluctuations of Plastochromanol‐8 and α‐Tocopherol Amounts in the Leaves of Cecropia Trees

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Plastochromanol‐8 (PC‐8) is a homologue of γ‐tocotrienol with a longer side chain (eight instead of three isoprene units) and therefore also a representative of the tocochromanol (vitamin E) group. PC‐8 has been determined in various plants and seeds, with Cecropia sp. leaves showing unusually high levels.
Rosalie Ormos, Jörg Rau, Walter Vetter
wiley   +1 more source