References
- DeLuca H F. Vitamin D. Metabolism and function. Monographs on Endocrinology. Springer Verlag, Berlin 1979
- Oftebro H, Saarem K, Björkhem I, Pedersen J I. Side chain hydroxylation of C27-steroids and vitamin D3 by a cytochrome P-450 enzyme system isolated from human liver mitochondria. J Lipid Res 1981; 22: 1254–64
- Saarem K, Bergseth S, Oftebro H, Pedersen J I. Subcellular localization of vitamin D3 25-hydroxy-lase in human liver. J Biol Chem 1984; 259: 10936–40
- Holmberg I. Differences in the metabolism of vitamin D2 and vitamin D3 by subcellular fractions from rat liver. Biochim Biophys Acta 1984; 800: 106–9
- Andersson S, Holmberg I, Wikvall K. 25-Hydroxylation of C27-steroids and vitamin D3 by a constitutive cytochrome P-450 from rat liver microsomes. J Biol Chem 1983; 258: 6777–81
- Björkhem I, Holmberg I. Mass fragmenographic assay of 25-hydroxyvitamin D3. Methods Enzymol 1980; 67: 385–93
- Björkhem I, Gustafsson J. Hydroxylation of steroid side chain in biosynthesis of bile acids. Eur J Biochem 1973; 36: 201–12
- Björkhem I, Holmberg I. Assay and properties of a mitochondrial 25-hydroxylase active on vitamin D3. J Biol Chem 1978; 253: 842–9
- Holmberg I. Inhibition of reconstituted vitamin D3 25-hydroxylase by a protein fraction from rat liver microsomes. Biochem Biophys Res Commun 1984; 123: 1209–14
- Yasukochi Y, Masters B SS. Some properties of a detergent-solubilized NADPH-cytochrome c (cytochrome P-450) reductase purified by bio-specific affinity chromatography. J Biol Chem 1976; 251: 5337–44
- Björkhem I, Holmberg I. On the 25-hydroxy-lation of vitamin D3in vitro studied with a mass fragmentographic technique. J Biol Chem 1979; 254: 9518–24
- Ahlsten M, Hansson R, Holmberg I, Ljungdahl I, Wikvall K. Reconstitution of cholesterol 7α-hyroxylase system from human liver microsomes. Biochem Med 1980; 26: 307–13
- Hunt R D, Garcia F G, Felix G, Hegstedt D M. Hypervitaminosis D in New World Monkeys. Am J Clin Nutr 1969; 22: 358–66
- Jones G, Schnocs H K, DeLuca H F. An in vitro study of vitamin D2 hydroxylases in the chick. J Biol Chem 1976; 251: 24–8
- Hunt R D, Garcia F G, Walsh J R. A comparison of the toxicity of ergocalciferol and cholecalciferol in Rhesus monkeys (Macaco mulatto). J Nutr 1972; 102: 975–86
- Harrington D D, Page E H. Acute vitamin D3 toxicosis in horses: case report and experimental studies of the comparative toxicity of vitamins D2 and D3. J Am Vet Med Assoc 1983; 182: 1358–69
- Roborgh J R, De Man T J. The hypercalcemic activity of dihydrotachysterol3 and dihydrotachysterol, and of the vitamins D2 and D3 after intravenous injection of the aqueous preparations. II. Comparative experiments on rats. Biochem Pharmacol 1960; 3: 277–82
- Haddad J G, Jr., Hahn T J. Natural and synthetic sources of circulating 25-hydroxyvitamin D in man. Nature 1973; 244: 515–7
- Whyte M P, Haddad J G, Jr., Walters D D, Stamp T CB. Vitamin D bioavailability: serum 25-hydroxyvitamin D levels in man after oral, subcutaneous, intramuscular and intravenous vitamin D administration. J Clin Endocrinol Metab 1979; 48: 906–11