Results 1 to 10 of about 1,799,941 (229)

Formation of RRR-α-tocopherol in rumen and intestinal digestibility of tocopherols in dairy cows [PDF]

open access: yesAnimal Nutrition, 2023
Tocopherol sources in diets are often a combination of all-rac-α-tocopheryl acetate (synthetic α-tocopherol) from vitamin supplements and natural tocopherols and 2R-(4′R, 8′R)-5,7,8-trimethyltocotrienol (α-tocotrienols) from the feed sources. Synthetic α-
Saman Lashkari   +3 more
doaj   +2 more sources

α-Tocopherol modulates the low density lipoprotein receptor of human HepG2 cells [PDF]

open access: yesNutrition Journal, 2003
The aim of this study was to determine the effects of vitamin E (α-tocopherol) on the low density lipoprotein (LDL) receptor, a cell surface protein which plays an important role in controlling blood cholesterol. Human HepG2 hepatoma cells were incubated
Bottema Cynthia DK   +3 more
doaj   +3 more sources

Mitigating degradation of frying oil and oil absorption of French fries caused by α-tocopherol and γ-oryzanol incorporation into rice bran oil [PDF]

open access: yesFood Chemistry: X
α-Tocopherol and γ-oryzanol affect physicochemical properties of oils, while their role in frying oil uptake remains unclear. Thus, the influence of various concentrations of 0–1000 mg α-tocopherol/kg oil and 0–15,000 mg γ-oryzanol/kg oil on the oil ...
Hai-long Zhang   +5 more
doaj   +2 more sources

α-Tocopherols modify the membrane dipole potential leading to modulation of ligand binding by P-glycoprotein [PDF]

open access: yesJournal of Lipid Research, 2015
α-Tocopherol (vitamin E) has attracted considerable attention as a potential protective or palliative agent. In vitro, its free radical-scavenging antioxidant action has been widely demonstrated.
Sterenn Davis   +6 more
doaj   +2 more sources

Biosynthesis of α-Tocopherol and Plastoquinone-9 in spinach chloroplasts [PDF]

open access: yes, 1980
Prenylation and methylation reaction in al biosynthesis is localized in the envelope membranes of the chloroplasts, while PQ-9 biosynthesis takes place in the envelope membranes and also in the thylakoid membranes. The sequence in a-T biosynthesis in spinach is (see also Figure 1): Homogentisate + Phytyl-PP —> Me-6-PQH?—> 2,3-Me2PQH?—>γ J ...
Soll, Jürgen, Schultz, Gernot
openaire   +4 more sources

α-Tocopherol inhibits atherogenesis and improves cardiac function in mice independently of its antioxidant properties [PDF]

open access: yesVascular Biology
The impact of α-tocopherol on atherosclerosis is unclear and controversial. While some studies suggest potential benefits, such as antioxidant properties that may reduce oxidative stress, other studies indicate no significant preventive effects.
Isabelle Coornaert   +4 more
doaj   +2 more sources

Chimeric Antisense Oligonucleotide Conjugated to α-Tocopherol

open access: yesMolecular Therapy: Nucleic Acids, 2015
We developed an efficient system for delivering short interfering RNA (siRNA) to the liver by using α-tocopherol conjugation. The α-tocopherol–conjugated siRNA was effective and safe for RNA interference–mediated gene silencing in vivo. In contrast, when
Tomoko Nishina   +11 more
doaj   +2 more sources

α-Tocopherol in chloroplasts: Nothing more than an antioxidant?

open access: yesCurrent opinion in plant biology, 2023
Among the eight forms of vitamin E, only tocopherols are essential compounds that are distributed throughout the entire plant kingdom, with α-tocopherol being the most predominant form in photosynthetic tissues.
Tania Mesa, S. Munné‐Bosch
semanticscholar   +1 more source

Alpha-tocopherol-loaded polycaprolactone nanoparticles improve the inflammation and systemic oxidative stress of arthritic rats

open access: yesJournal of Traditional and Complementary Medicine, 2022
Background and aim: The present study investigated the effects of orally administered α-tocopherol-loaded polycaprolactone nanoparticles on the articular inflammation and systemic oxidative status of middle-aged Holtzman rats with Freund's adjuvant ...
Lucas S. Moreira   +11 more
doaj   +1 more source

Encapsulation of Folic Acid and α-Tocopherol in Lysozyme Particles and Their Bioaccessibility in the Presence of DNA

open access: yesAntioxidants, 2023
Protein particles have been reported as the potential carriers for the co-encapsulation of bioactive components. In this study, lysozyme, a basic protein, was used to simultaneously encapsulate folic acid and α-tocopherol at pH 4.0.
Lingling Ma   +5 more
doaj   +1 more source

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