Ascorbic acid is an effective antioxidant and free radical scavenger. Therefore, it is expected that ascorbic acid should act as a radioprotectant. We investigated the effects of post-radiation treatment with ascorbic acid on mouse survival. Mice received whole body irradiation (WBI) followed by intraperitoneal administration of ascorbic acid. Administration of 3 g/kg of ascorbic acid immediate...

abstract effect of different concentrations of salicylic acid on postharvest life of kiwifruit (actinidia deliciosa) cultivar hayward at 0 ±.5 °c and 90-95% rh was studied. fruits were treated with salicylic acid (0, 1 and 2 mmol/l-1) and stored at 0±.5°c for 16 weeks. fruit quality attributes assessment including firmness, total acidity, soluble solid content, ascorbic acid, antioxidant activi...

Ascorbic acid in soluble extracts of neural tissue can account for the increase in surface acetylcholine receptors (AChR's) seen on L5 myogenic cells treated with crude brain extract (Knaack, D., and T. R. Podleski, 1985, Proc. Natl. Acad. Sci. USA., 82:575-579). The present study further elucidates the nature of the response of L5 cells to ascorbic acid. Light autoradiography showed that ascor...

The presence of ascorbic acid in gastric juice may protect against gastric carcinoma and peptic ulceration. This study examined the effect of Helicobacter pylori (H pylori) on the secretion of ascorbic acid into gastric juice by measuring fasting plasma and gastric juice ascorbic acid concentrations in patients with and without the infection and also before and after its eradication. Gastric ju...

تعمج تانايبلا . ةيجهنم ةعجارم تناك ةساردلا هذه :هقیرطلا و ةصالخا تاملكلا لامعتساو تانايبلا ةدعاق يف ثحبلا للاخ نم زجالحا " :یتلاا تناك ةصالخا تاملكلا .ثحبلا یف قمعتلا ريياعلما . " ةطبثلما لماوعلا " و "ءاسنلل ةدلاولا لبق ةياعرلا " لوصو" ٬" یف قمعتلا وةساردلا دعب .OR ،AND تناك ةيقطنلما لماوعلا تلااقم تددحو تضفر ةطبارتم ريغ تلااقم ، هفلتخلما تلااقلما تلااقلما رايتخلاا رايعم .تلااقلما لذل اصخلم اها...

Ascorbic acid is frequently administered intravenously by alternative health practitioners and, occasionally, by mainstream physicians. Intravenous administration can greatly increase the amount of ascorbic acid that reaches the circulation, potentially increasing the risk of oxalate crystallization in the urinary space. To investigate this possibility, we developed gas chromatography mass spec...

Objective(s): The aim of this study was to determine the protective role of ascorbic acid on apoptosis and proliferation of spermatogonia and primary spermatocyte cells after malathion administration as an organophosphate pesticide in rat testis.Materials and Methods: Thirty male Wistar rats were randomly divided into five groups of 6 ra...

PURPOSE Ascorbic acid has been reported to have an adipogenic effect on 3T3-L1 preadipocytes, while evidence also suggests that ascorbic acid reduces body weight in humans. In this study, we tested the effects of ascorbic acid on adipogenesis and the balance of lipid accumulation in ovariectomized rats, in addition to long-term culture of differentiated 3T3-L1 adipocytes. MATERIALS AND METHOD...

A recent finding from this laboratory indicated that the incubation in vitro of purified xanthine oxidase with trace amounts of l-ascorbic acid resulted in a marked inhibition of the enzymatic activity (1, 2). Since the physiological mode’of action of Z-ascorbic acid is still obscure, it seemed desirable to determine whether ascorbic acid would, in the intact animal, exert a similar effect on x...

Chemical methods for the determination of reduced ascorbic acid (Zascorbic acid) are based upon its reducing properties. The indophenol method of Bessey (1, 2) and the perinaphthindantrione hydrate method of Moubasher (3) are examples of these methods. Modifications to increase the specificity of the indophenol method have been presented by Robinson and Stotz (4), Lowry, Lopez, and Bessey (5), ...