..., methods, instructions or products referred to in the content or advertisements. Vitamin C Ascorbic acid Dietary intake Reference value The D-A-CH ‘reference values for nutrient intake' [ 1 ] are jointly issued by the nutrition societies of Germany, Austria and Switzerland...

... or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Ascorbic acid Scurvy Vitamin C The usual name in English...

...M. Hamdaoui; T. Doghri; B. Tritar The aim of our study was to evaluate the bioavailability of iron from a typical Tunisian meal ‘couscous’ provided to healthy rats with or without appropriate mixtures of tea plus ascorbic acid and to search for the optimal amount of ascorbic acid able to overcome...

... of resecting 50% of the distal small intestine (DSI) on copper status in rats fed three semisynthetic diets (basal diet, and basal diet with cholecalciferol or ascorbic acid). Intestinal resection significantly decreased the digestive (apparent digestibility coefficient; ADC) and metabolic utilization (balance...

...Johan Eriksson; Antti Kohvakka The effect of magnesium (Mg) and ascorbic acid (AA) supplementation on metabolic control was assessed in 56 outpatient diabetics. A 90-day run-in period was followed by two 90-day treatment periods, during which Mg (600 mg/day) and AA (2 g/day) were administered...

... to in the content or advertisements. Antioxidant vitamins Ascorbic acid Carotenes Duplicate diet Retinol Tocopherols Original Paper Ann Nutr Metab 1995;39:208-216 a Ravel* Vitamin Intakes (A, Ef C, A.M. Rousselb Carotenes) in a French Institution: J Alarya Assessment by the Duplicate-Diet...

...Helga Gerster Even though a certain part of oxalate in the urine derives from metabolized ascorbic acid (AA), the intake of high doses of vitamin C does not increase the risk of calcium oxalate kidney stones due to physiological regulatory factor: gastrointestinal absorption as well as renal...

...B.P. Poovaiah; Brian D. Potter; Stanley T. Omaye Plasma-, erythrocyte- and liver Se-dependent glutathione peroxidase (GPx) activity, ascorbic acid (AA) concentration, and erythrocyte and liver Se levels were analyzed in groups of guinea pigs fed a Torula yeast-based semipurified diet supplemented...

... by low plasma ascorbic acid levels during the preceding year. The two doses of vitamin C were compared with placebo in a double-blind, cross-over design during randomly determined 6-week periods followed by 2-week washout intervals. No effect was observed on serum cholesterol, HDL cholesterol...

..., ascorbic acid was added at 5 and 10 mg/l00 g of diet. The diets were fed to weanling albino rats for a period of 28 days. Plasma iron was determined by the bathophenanthraline method, and hemoglobin was measured using the Sahil hemoglobinometer. The results showed that ascorbic acid influenced...

...% (both vitamins). Ann. Nutr. Metab. 28: 186-191 (1984) © 1984 S.Karger AG. Basel 0250-6807/84/0283-0186S2.75/0 The Effect of a-Tocopherol and Ascorbic Acid on the Serum Lipid Peroxide Level in Elderly People M. Wartanowicz, B. Panczenko-Kresowska, §. Ziemlahski, M. Kowalska, G. Okolska Department...

...E. Ginter; P. Bobek; D. Vargová Ascorbic acid mixed with the diet of guinea pigs achieved substantially higher maximum tissue concentrations of ascorbate than when ascorbic acid was administered orally once a day. A 0.5% w/w of ascorbic acid in the diet ensured a state close to maximal tissue...

...Erik Björn-Rasmussen; Leif Hallberg The present study was performed to measure the effect of increasing amounts of ascorbic acid on the absorption of 5 mg iron in a maize meal. 30 normal subjects were served two maize meals, one of them with ascorbic acid at different dose levels. At the dose level...

... acid and to stimulate the growth of hypovitaminotic C guinea pigs, had no influence on the survival time of scorbutic guinea pigs. Tetrahydrofolic acid, reported to possess 40 % of the activity of ascorbic acid in the protocollagen proline-hydroxylase system, also failed significantly to prolong...

... greater than the suggested normal limit of 10%, and these results indicated that they had some degree of thiamin deficiency. The TPP effect was, however, significantly reduced and excretory levels of thiamin were significantly increased in these patients by oral supplementation with ascorbic acid for 1...

...R.J. Hurley; P.R. Jones; R.E. Hughes The uptake of ascorbic acid by the organs of near-scorbutic guinea-pigs was examined. Tissue saturation was achieved in the liver, spleen, heart and adrenals 24 h after the administration of 1 % ascorbic acid in the drinking water; saturation of the eye lens...

... induce cellular oxidative stress. Ascorbic acid (AA) is a powerful physiological antioxidant and, in the presence of free Fe (II), can exhibit prooxidant effects in vitro. However, in vivo prooxidant effects of Fe (II) and AA have not yet been indisputably demonstrated. Here we evaluate the potential...

...I. Nourmohammadi; M. Modarress; K. Khanaki; M. Shaabani Objective: Several studies on cataract have suggested that antioxidant micronutrients such as α-tocopherol, retinol and ascorbic acid may help to protect against cataractogenesis. Our objective was to determine the serum concentration...

...Raquel Retana-Ugalde; Esther Casanueva; Mario Altamirano-Lozano; Cristina González-Torres; Víctor Manuel Mendoza-Núñez Aim: To determine the useful dosage of ascorbic acid and alpha-tocopherol against oxidative stress and DNA damage in the elderly. Methods: A double-blind controlled clinical assay...

...Andreas Kubin; Karl Kaudela; Rudolf Jindra; Gerhart Alth; Werner Grünberger; Franz Wierrani; Robert Ebermann Background/Aim: L -Ascorbic acid (AA) is the predominant circulating form of vitamin C found in human blood. It has been hypothesized that surgical stress increases the vitamin C metabolite...