نتایج جستجو برای: physiology vitamin c
تعداد نتایج: 1211441 فیلتر نتایج به سال:
Background and purpose:Epidemiological evidence has suggested that consumption of fruits reduces the risk of chronic diseases such as cancer and cardiovascular disease. These benefits are often attributed to their high antioxidant components such as vitamin C (ascorbic acid). Citrus species are extremely rich sources for this vitamin, therefore we decided to determine the amount of vitamin C ...
1. Department of Biological Sciences, Manchester Metropolitan University, England 2. Allergy, Environmental and Orthomolecular Medicine 127 Second Street, Los Altos, California 94022, USA Abstract This paper presents a new account of the action of ascorbate in humans: the dynamic flow model. The model is consistent with previous studies and with the known properties of vitamin C. Based on this ...
Background: Atrial fibrillation is the most common arrhythmia after cardiac surgery. Vitamin C as an antioxidant has an important role in reducing the incidence of postop-erative atrial fibrillation. The present study aimed at administrating vitamin C as a way to reduce the incidence of post-CABG atrial fibrillation. Methods: In this double-blind, parallel clinical trial, 170 patients with cor...
Introduction: Phenylhydrazine (PHZ) is a well-known hemolytic compound inducing intoxication in erythrocytes. Therefore, the present study aimed to evaluate the protective effects of royal jelly and vitamin C against phenylhydrazine-induced damages in mouse testicles. Methods: In this study, 64 adult male mice were randomly and equally assigned to eight groups. The first group received norma...
coenzyme q10, a lipid soluble benzoquinone, has excellent antioxidant and membrane stabilizing properties in the cardiac tissue. the present study investigated the effects of coenzyme q10 on in vitro ldl oxidation quantitavely. the formation of conjugated dienes, malondialdehyde (mda) and electrophoretic mobility were monitored as markers of the oxidation of ldl, respectively. coenzyme q₁₀ show...
the present study was aimed to test the efficacy of adding vitamins c or e to tris-fructose-egg yolk diluent to increase awassi ram sperm storage period at 5 ˚c. semen samples from six mature awassi rams were used in this study. the semen samples were diluted by tris-glucose-egg yolk. diluted semen sample was divided into three parts. the first part was added with 0.9 mg ml-1 vitamin c, the sec...
the naturally occurring antioxidants: vitamin e, β-carotene and vitamin c are known to ameliorate theoxidative stress generated during various physiological and pathological conditions. the oxidative stress mayoccur at different sites, different times, and by different mechanisms in the animal system. lower levels ofthe anti-oxidant vitamins are associated with poor fertility and production lev...
background: the extremely low-frequency electromagnetic field (elf-emf), mainly emitted by electric transmission lines and household electronic appliances, is becoming a worldwide health risk. it is imperative to investigate the biological impacts of elf-emf and to identify products that are resistant to the radiation from 50 hz elf-emf. in this study, we investigated the biological impacts of ...
background: renal ischemia reperfusion injury may occur in a variety of clinical situations, following a transient drop in total or regional blood flow to the kidney. this study was performed to investigate the protective effects of different antioxidants such as vitamin c, vitamin e, hydrocortisone and combination of these agents against experimental renal ischemia-reperfusion injury. method:...
The objective of this study was to investigate the propensity of permethrin (PTN) to induce oxidative stress and changes in enzyme activities in liver of rainbow trout and its possible attenuation by vitamin C. Forty-eight fish were randomly assigned to 1 of 6 treatment groups and their livers were used for liver perfusion method: control (0 μgL-1 permethrin and 0 mgL-1 vitamin C), PTN-0.16 (0....
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