منابع مشابه
PLASMA DEHYDROASCORBIC ACID LEVELS IN IRANIAN SUBJECTS WITH DIABETES MELLITUS
Several reports concerning high plasma dehydroascorbic acid (DHAsA) levels in diabetics have been published and from these reports, suggestions that monitoring of DHAsA levels in those persons with a predisposition to diabetes mellitus would be of value. However, conflicting reports have also appeared which do not confirm high levels of DHAsA in diabetic subjects when compared to controls....
متن کاملHPLC-UV method for the simultaneous determinations of ascorbic acid and dehydroascorbic acid in human plasma
A high performance liquid chromatography (HPLC) paired with UV-vis detection method to determine ascorbic acid and its oxidation product, dehydroascorbic acid, in human plasma was developed. Ascorbic acid in human plasma was extracted and stabilized using 10% metaphosphoric acid, and was analyzed by a Symmetry C18 column with 5 mM Hexadecyltrimethylammonium bromide and 50 mM KH2PO4 solution as ...
متن کاملplasma dehydroascorbic acid levels in iranian subjects with diabetes mellitus
several reports concerning high plasma dehydroascorbic acid (dhasa) levels in diabetics have been published and from these reports, suggestions that monitoring of dhasa levels in those persons with a predisposition to diabetes mellitus would be of value. however, conflicting reports have also appeared which do not confirm high levels of dhasa in diabetic subjects when compared to controls. beca...
متن کاملThe effect of cortisone and adrenocorticotropic hormone on the dehydroascorbic acid of human plasma.
It is well known that ascorbic acid in aqueous solution is easily and reversibly oxidized to dehydroascorbic acid, and it is believed that above pH 4 the latter can undergo irreversible change, possibly to diketogulonic acid, as a preliminary to further oxidation. The possibility of the existence of dehydroascorbic acid or diketogulonic acid in blood plasma, however, has been generally ignored ...
متن کاملAscorbic Acid Dehydroascorbic Acid C6 Dicarboxylic Acid
Dehydroascorbic acid is shown to be converted to 2-(threo-l,2,3-trihydroxypropyl)tartronic acid in aqueous alkaline solutions. The structure of the acid was determined by mass spectrometry of its acyclic Me3Si derivative. Mass spectrometric and chromatographic data are compared with those of related compounds. The acid is formed by a benzilic acid rearrangement of the intermediate 2,3-hexodiulo...
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ژورنال
عنوان ژورنال: Proceedings of the Nutrition Society
سال: 1953
ISSN: 0029-6651,1475-2719
DOI: 10.1079/pns19530061