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Absorption of large, single, oral intakes of ascorbic acid.
- D. Hornig, J. P. Vuilleumier, D. Hartmann
- Biology, Medicine
- International journal for vitamin and nutrition…
A male non-smoking volunteer increased his daily intake of ascorbic acid continuously by ingesting in a single, oral dose 1, 2, 3, 4 and 5 g crystalline ascorbic acid. The dose was always kept… Expand
Uptake and release of [I-14C]ascorbic acid and [I-14C]dehydro-ascorbic acid by leucocytes of guinea pigs
Abstract The leucocyte membrane was found to be permeable to both ascorbic acid and dehydroascorbic acid in either direction. Mean ratios of uptake of dehydroascorbic acid to ascorbic acid by… Expand
The Significance of the Extent of Proximal Margins of Clearance in Gastric Cancer Surgery
The surgery of gastric carcinoma should take into account the differences in growth pattern between the intestinal and diffuse type in accordance with Lauren. From 1969 to 1983, a total number of 849… Expand
Interaction of erythorbic acid with ascorbic acid catabolism.
- D. Hornig
- Chemistry, Medicine
- Acta vitaminologica et enzymologica
There exist altogether four stereoisomers of ascorbic acid. Erythorbic acid (D-isoascorbic acid) differs in the spatial configuration at carbon 5 and has less than 5 per cent of biological vitamin C… Expand
Absorption und Metabolisierung als limitierende Faktoren bei der Oxalatbildung aus Ascorbinsäure
Im Zusammenhang mit Absorption und Stoffwechsel der Ascorbinsaure sind zwei Kriterien besonders wichtig, die bei experimentellen Studien Beachtung finden mussen. Einmal kann nicht generell vom… Expand
High intakes of vitamin C: A contributor to oxalate formation in man?
Functions of Vitamins beyond Recommended Dietary Allowances: European Academy of Nutritional Sciences Workshop, Nice, October 1997: Proceedings
Decomposition of Exogenous 14C-Oxalate (14C-OX) to 14C-Carbon Dioxide (14CO2) In Vitro and in Animals
The question concerning bacterial decomposition of oxalate by intestinal microorganisms is unresolved. Varying amounts of oxalate were incubated with human feces. The formed CO2 was determined by… Expand