We investigated the plasma concentration and urinary excretion of vitamin C in cows supplemented with vitamin C. Five cows (mean BW = 597 kg) were allocated to a 5 x 5 Latin square design and supplemented with a vitamin C preparation coated with hydrogenated soybean oil at 0, 10, 20, 40, or 60 mg of vitamin C per kg of BW per day for 9 d. Plasma and urine samples were collected for measuring vi...

This study was designed to elucidate the effect of ascorbic acid on salivary total antioxidant capacity in smokers. In this single blind crossover clinical trial, the whole unstimulated saliva of 30 smokers, who were randomly divided into two groups, was collected. In the first phase after the saliva collection, one group of patients took 500 mg of vitamin C powder, for 3 weeks. Then, saliva of...

objective: streptozotocin (stz) destroys the beta cells of pancreas by generation of reactive oxygen species and vitamin c has documented antioxidant properties. this study was designed to evaluate the preventive effect of supplementation of diet by vitamin c on induction of stz-diabetes and its effect on carbohydrate and lipid metabolism of diabetic rats. materials and methods: fifty male wist...

the effects of dietary supplementation of grape seed extract (gse) and vitamin c on carcass characteristics, gut morphology and ileal microflora in broiler chickens exposed to chronic heat stress were examined. experimental diets included a control diet (without additive), 3 levels of gse (150, 300, 450 mg/kg of diet), and vitamin c (300 mg/kg of diet). each of the five diets was fed to 5 repli...

Background: Cadmium (Cd) intoxication can cause oxidative stress and involve the antioxi-dant defense system in hepatocytes. Administration of vitamin C, chitosan, or a combination of both may prevent Cd-induced oxidative damage. Methods:Cyprinus carpio were distributed into six groups. The control group received normal feed (Group I). Group II was exposed to 0.2 mg.L-1 cadmium chloride. Gr...

The effect of subcutaneous injections of vitamin C on the seminal characteristics of Markhoz bucks (2–4-year-old) was studied. The bucks, trained to serve an artificial vagina, were randomly allotted into three equal groups (n = 4) and received daily either zero (1 mL normal saline; control group), or 20 (VitC20 group) or 40 (VitC40 group) mg per kg body weight vitamin C from July 06, 2006 to O...

background: eicosapentaenoic acid (epa) is the principal ω-3 fatty acids in marine oils. fasting blood sugar (fbs), hba1c and some of the plasma lipids and lipoproteins has been negatively related to the intake of ω-3 fatty acids and ascorbic acid, in some studies. therefore, the purpose of this study was to assess the effects of epa and/or vitamin c on glycemic indices, blood pressure, and pla...