Results 241 to 250 of about 14,649 (265)
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Dependence on Cyanocobalamin Injections-Reply
JAMA: The Journal of the American Medical Association, 1989In Reply.— The comments by Drs Newbold and Tilkian underscore the fact that some aspects of vitamin B12metabolism in humans remain elusive despite 40 years of intensive study and thousands of publications.1 Dr Newbold points out that the hereditary defects of vitamin B12metabolism are not addressed in our article.
Lawhorne, Larry Wayne, Ringdahl, David
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Radiokomplexometrische Bestimmung von Cyanocobalamin
Fresenius' Zeitschrift für Analytische Chemie, 1967Zur Bestimmung von Cyanocobalamin wird folgendes Verfahren empfohlen: Das aus der Verbindung mit Ozon in Freiheit gesetzte Kobalt wird mit radioaktivem 60Co versetzt und an einem Kationenaustauscher adsorbiert, dessen Aktivitat gemessen wird. Durch Reaktion mit einer substochiometrischen Menge an ADTA wird dann eine aliquote Menge des Kobalts vom ...
J. Konečný +2 more
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Stability of cyanocobalamin in sugar-coated tablets
International Journal of Pharmaceutics, 2007The purpose of this study was to clarify the stability of cyanocobalamin (VB(12)-CN) in sugar-coated tablets containing fursultiamine hydrochloride (TTFD-HCl), riboflavin (VB(2)), and pyridoxine hydrochloride (VB(6)), and to identify the factors affecting the stability of VB(12)-CN in these sugar-coated tablets.
Masumi Kataoka +2 more
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Biochimica et Biophysica Acta (BBA) - Protein Structure, 1979
Transcobalamin II-cyanocobalamin was isolated from Cohn fraction III of pooled human plasma by affinity chromatography on cyanocobalamin-Sepharose and some conventional separation methods. The affinity ligand cyanocobalamin was coupled to AH-Sepharose by a thermolabile linkage. The unsaturated binding protein was absorbed at 4 degrees C and eluted from
J. Van Kapel, Jan Lindemans, J. Abels
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Transcobalamin II-cyanocobalamin was isolated from Cohn fraction III of pooled human plasma by affinity chromatography on cyanocobalamin-Sepharose and some conventional separation methods. The affinity ligand cyanocobalamin was coupled to AH-Sepharose by a thermolabile linkage. The unsaturated binding protein was absorbed at 4 degrees C and eluted from
J. Van Kapel, Jan Lindemans, J. Abels
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Cyanocobalamin (Vitamin B12) II.
Journal of the American Pharmaceutical Association (Scientific ed.), 1958The data presented seem to indicate that the stability of cyanocobalamin is affected by dehydroascorbic acid, a decomposition product of ascorbic acid. This study further corroborates the initial findings of the effect of decomposed ascorbic acid on cyanocobalamin.
A.J. Bartilucci, R. Digirolamo, H. Eisen
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Spectrophotometric determination of cyanocobalamin (as cobalt)
Microchemical Journal, 1977Abstract A spectrophotometric method for the determination of cyanocobalamin (as cobalt) in pharmaceutical preparations has been developed. The sample is first decomposed with sulfuric acid and potassium perchlorate. The liberated cobalt is then determined using 2,2′-dipyridyl-2-pyridylhydrazone as reagent in solutions containing 20% sulfuric acid ...
Th. Kouimtzis +2 more
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Response of Metabolic Encephalopathy to Treatment with Cyanocobalamin
Scottish Medical Journal, 1968A patient suffering from metabolic encephalopathy, tobacco amblyopia and a lung abscess is described. The encephalopathy responded to treatment with cyanocobalamin but the tobacco amblyopia failed to improve until treatment with hydroxocobalamin was instituted.
J. Bronte-Stewart +2 more
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Radiolysis of cyanocobalamin (vitamin B12)
Radiation Physics and Chemistry, 2000Abstract Research on the radiolysis of vitamins is of considerable interest since these compounds are important nutritional constituents in foods and in dietetic supplements. In spite of these considerations there are few data and very often difficult to compare for the radiolytic behavior of vitamins.
Guadalupe Albarrán +2 more
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