...U. Trechsel; C. M. Taylor; J. A. Eisman; J.-P. Bonjour; H. Fleisch 1. Protein-binding assays have been used to measure plasma 1,25-dihydroxy-vitamin D [1,25-(OH) 2 D] as well as 25-hydroxy-vitamin D [25-(OH)D] in rats given 10 mg of phosphorus (P) day −1 kg −1 as ethane-1-hydroxy-1,1-diphosphonate...

... expressed as a percentage of the total plasma radioactivity was higher than that of 25-[ 3 H]hydroxy-vitamin D 3 . 3. It is suggested that the mechanism of intestinal absorption of vitamin D and 25-hydroxy-vitamin D may differ in man, the absorption of 25-hydroxy-vitamin D possibly being less dependent...

... on plasma concentrations of 25-hydroxy-vitamin D was studied in a group of control anicteric Wistar rats ( n = 11), Wistar rats 8 days after common bile-duct ligation ( n = 7) with conjugated hyperbilirubinaemia and in Gunn rats ( n = 11). 3. The plasma 25-hydroxy-vitamin D response to ultraviolet radiation...

...J. B. Eastwood; A. Daly; G. D. Carter; J. Alaghband-Zadeh; H. E. De Wardener 1. Plasma 25-hydroxy-vitamin D concentration was measured in 40 normal subjects, 19 patients with terminal renal failure, 137 patients who had been on dialysis up to 11 years and in 17 renal transplant patients. 2...