In a 2 x 2 balanced factorial experiment the biochemical effects on pigs of two dietary factors were investigated. The first factor was a-tocopherol and Se supplementation and the second factor was supplementation with a-tocopherol-stripped linseed oil. In pigs fed on diets depleted of a-tocopherol and Se, increases in concentrations of markers of Lipid peroxidation (4hydroxynonenal and hexanal...

Copyright © 2016 by Journal of Korean Academy of Oral Health This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Objectives: To assess the abs...

The influence of prolonged breastfeeding on breast-milk alpha tocopherol was assessed in 112 lactating mothers practicing exclusive breast-feeding on term infants. The cross sectional study was carried out between May 1st and 30th, 2005 at the University of Benin/University of Benin Teaching Hospital, Benin City among lactating mothers. Employing the Quaife's method, mean alpha-tocopherol value...

BACKGROUND Disorders of antioxidant balance are considered to be involved in the toxicity associated with radiotherapy or chemotherapy. PATIENTS AND METHODS Serum alpha-tocopherol and retinol were determined, by high performance liquid chromatography, before and during therapy with a combination of paclitaxel and carboplatin in 28 patients with breast and ovarian cancer. Serum neopterin and c...

BACKGROUND: The aim of our investigation was to estimate the stability of alpha-tocopheryl O-glycosides in relation to activity of exoglycosidases in selected rat tissues. MATERIAL AND METHODS: Acetylated glycosides were obtained in glucosidation of alpha-tocopherol using the Helferich method. The activity of exoglycosidases was determined by the Zwierz et al. method. Protein concentrations wer...

1. The kinetics of the depletion of alpha-tocopherol in human low-density lipoprotein (LDL) were measured during macrophage-mediated and cell-free oxidation. The formation of oxidatively modified, high-uptake species of LDL in these systems was not detectable until all of the endogenous alpha-tocopherol had been consumed. 2. Supplementation of the alpha-tocopherol content of LDL by loading in v...

Glomerulosclerosis and tubulointerstitial injury are characteristic features seen in the subtotal (5/6) nephrectomy remnant kidney model in the rat. Oxidative stress from renal mass reduction contributes to the glomerular and tubular injury. Previous studies have clearly demonstrated the prevention or inhibition of such injury by an antioxidant such as alpha-tocopherol. However, few data are av...

OBJECTIVE Our aim was to examine the impact of a single enteral dose of vitamin E on serum tocopherol levels. The study was undertaken to see whether a single dose of vitamin E soon after birth can rapidly increase the low α-tocopherol levels seen in very preterm infants. If so, this intervention could be tested as a means of reducing the risk of intracranial hemorrhage. METHODS Ninety-three ...

Alpha-Tocopherol is a classical lipophilic antioxidant well known as a scavenger of free radicals in a hydrophobic milieu. However, it can develop both anti- and prooxidant activity in isolated low density lipoprotein (LDL). It is unknown how these activities are balanced in vivo in human plasma. We studied oxidation of plasma and LDL isolated from healthy donors or from a patient with familial...

Antioxidants such as vitamin E may act differently on skin cells depending on the age of the skin and the level of oxidative damage induced. The effects of alpha-tocopherol (ATF) on H(2)O(2)-induced DNA damage and telomere shortening of normal human skin fibroblast cells derived from young and old individual donors were determined. Fibroblasts were divided into five groups; untreated control, H...