BACKGROUND Contrast-induced acute kidney injury (CI- AKI) increases the likelihood of patient morbidity and mortality following coronary procedures. Volume supplement with saline is the standard treatment to prevent CI-AKI. Additional antioxidant prophylaxis has often yielded conflicting results. The present study was conducted to examine the role of novel application vitamin E (tocopherol) in ...

OBJECTIVE To analyze the impact of low levels of testosterone induced by orchiectomy and the effect of alpha-tocopherol supplementation on oxidative stress in the urethral sphincter. MATERIALS AND METHODS Forty male Wistar rats weighing 250-300 g were divided into four groups with 10 each: Sham group; Orchiectomy group: bilateral orchiectomy; Orchiectomy-pre-Tocopherol group: bilateral orchie...

In this study, waste edible oil was prepared by both heat and aeration treatment, and the increasing inhibitive effect of tocopherol treatment on the acid value (AV) and carbonyl value (CV) of the oil was investigated. The AV and CV of waste edible oil treated with tocopherol were 0.1-1.0% lower than those of the nontreated oil, indicating that tocopherol exerted a radical-scavenging activity. ...

Gamma tocopherol content of 7 Iranian sesame seeds (sesamum indicum L.) was determined by high performance liquid chromatography using C8 column and methanol, water and butanol as mobile phase. The gamma-tocopherol content varied from 563 to 1095 mg/kg in oil and 293 to 569 mg/kg in sesame seed and was in broad agreement with the Codex range. A large variation was found in the concentration of ...

The aim of this study was to determine the chemical composition (fatty acids, tocopherols, and sterols) evaluate oxidative stability Moroccan pomegranate ( Punica granatum L.) seed oil. oil content 22.63 g/100g dry weight. fatty acid showed a dominance conjugated linolenic acids (CLnAs) (86.96 g/100g). most dominant punicic (75.1 g/100g), followed by catalpic (6.7 g/100g) linoleic with amounts ...

Vitamin E, a micronutrient (comprising alpha-, beta-, gamma- and delta-tocopherols, alpha-, beta-, gamma- and delta-tocotrienols), has documented antioxidant and non-antioxidant effects, some of which inhibit inflammation and angiogenesis. We compared the abilities of alpha-, gamma- and delta-tocopherols to regulate human blood cytotoxicity (BEC) and lymphatic endothelial cytotoxicity (LEC), pr...

background: spermatozoa preservation is an approach to improve the fertility rate to pass on the valuable genetic material from sire to their offspring. during the last 20 years, reproductive biotechnologists have focused on the approaches that improve spermatozoa cryosurvival. one of the possible mechanisms is supplementation in semen extender. objectives: the aim of this study was to evaluate...

The plasma tocopherol level is often low in cirrhosis (1, 2). Whether such low values reflect alterations in the absorption, utilization or excretion of tocopherol related to liver damage, or are the result of a decreased dietary intake is not known. Previous attempts to investigate tocopherol metabolism in liver disease have been limited to tests of tocopherol tolerance based on plasma curves ...

Insulin resistance may enhance the neointima formation via increased oxidative stress. However, clinical trials investigating the benefit of antioxidant therapy with α-tocopherol showed negative results. Recent studies showed that chemical characteristics of γ-tocopherol are distinct from those of α-tocopherol. We hypothesized that γ-tocopherol is superior to α-tocopherol in preventing the neoi...

The ability of dietary supplementation with carotenoids to protect chick tissues against oxidative stress in vitro was examined. Male Leghorn chicks were fed on diets supplemented (100 mg supplement/kg diet) with either beta-carotene, zeaxanthin (beta,beta-carotene-3,3'-diol), canthaxanthin (beta,beta-carotene-4,4'-dione) or alpha-tocopherol, or on a control diet, from 1 d old until 37 d of age...