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Scandinavian Journal of Gastroenterology Volume 6, 1971 - Issue 3
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Original Article

Absorption of Cyanocobalamin, Coenzyme B12, Methylcobalamin, and Hydroxocobalamin at Different Dose Levels

J. F. Adams Dept. of Medicine, Southern General Hospital, Glasgow, Scotland, Glaxo Limited, Greenford, England, and Scottish Research Reactor Centre, East Kilbride, Scotland
,
Sheila K. Ross Dept. of Medicine, Southern General Hospital, Glasgow, Scotland, Glaxo Limited, Greenford, England, and Scottish Research Reactor Centre, East Kilbride, Scotland
,
L. Mervyn Dept. of Medicine, Southern General Hospital, Glasgow, Scotland, Glaxo Limited, Greenford, England, and Scottish Research Reactor Centre, East Kilbride, Scotland
,
K. Boddy Dept. of Medicine, Southern General Hospital, Glasgow, Scotland, Glaxo Limited, Greenford, England, and Scottish Research Reactor Centre, East Kilbride, Scotland
&
Priscilla King Dept. of Medicine, Southern General Hospital, Glasgow, Scotland, Glaxo Limited, Greenford, England, and Scottish Research Reactor Centre, East Kilbride, Scotland
Pages 249-252 | Received 18 Jul 1970, Accepted 16 Nov 1970, Published online: 25 Feb 2010

REFERENCES

  • Boddy, K. 1967. A high sensitivity shadow-shield whole body monitor with scanning-bed and tilting-chair geometries incorporated in a mobile laboratory. Brit. J. Radiol. 40, 631–637.
  • Callender, S. T. & Evans, J. R. 1955. Observations on the relationship of intrinsic factor to the absorption of labelled vitamin B12 from the intestine. Clin. Sci. 14, 387–393.
  • Glass, G. B. J., Boyd, L. J. & Stephanson, L. 1954. Intestinal absorption of vitamin B12 in humans as studied by isotope technic. Proc. Soc. exp. Biol. (N. Y.) 86, 522–526.
  • Heinrich, H. C. & Gabbe, E. E. 1964. Metabolism of the vitamin B12-coenzyme in rats and man. Ann. N.Y. Acad. Sci. 112, 871–903.
  • Herbert, V., Streiff, R. R. & Sullivan, L. W. 1964. Notes on vitamin B12 absorption; autoimmunity and childhood pernicious anemia; relation of intrinsic factor to blood group substance. Medicine 43, 679–687.
  • Herbert, V. & Sullivan, L. W. 1964. Activity of coenzyme B12 in man. Ann. N. Y. Acad. Sci. 112, 855–870.
  • Heyssel, R. M., Bozian, R. C., Darby, W. J. & Bell, M. C. 1966. Vitamin B12 turnover in man. The assimilation of vitamin B12 from natural foodstuff by man and estimates of minimal daily dietary requirements. Amer. J. clin. Nutr. 18, 176–184.
  • Johnson, A. W., Mervyn, L., Shaw, N. & Smith, E. L. 1963. A partial synthesis of the vitamin B12 coenzyme and some of its analogues. J. chem. Soc. 4146–4156.
  • Nyberg, W. & Reizenstein, P. G. 1958. Intestinal absorption of radio vitamin B12 bound in pig liver. Lancet. 2, 832–833.
  • Okuda, K., Takara, I. & Fujii, T. 1968. Absorption of liver-bound vitamin B12 in relation to intrinsic factor. Blood 32, 313–323.
  • Reizenstein, P. G. & Nyberg, W. 1959. Intestinal absorption of liver-bound radio vitamin B12 in patients with pernicious anaemia and controls. Lancet 2, 248–252.
  • Rosenblum, C., Woodbury, D. T., Gilbert, J. P., Okuda, K. & Chow, B. F. 1955. Comparative absorption of vitamin B12 analogues by normal humans. I Chlorocobalamin vs. cyanocobalamin. Proc. Soc. exp. Biol. (N. Y.) 89, 63–66.
  • Rosenblum, C., Yamamoto, R. S., Wood, R., Woodbury, D. T., Okuda, K. & Chow, B. F. 1956. Comparative absorption of vitamin B12 analogues by normal humans. II Chloro-, Sulfato-, Nitro- and Thiocyanato – vs Cyanocobalamin. Proc. Soc. exp. Biol. (N. Y.) 91, 364–367.
  • Ståhlberg, K. G., Radner, S. & Nordén, Å. 1967. Liver vitamin B12 in subjects with and without vitamin B12 deficiency. A quantitative and qualitative study. Scand. J. Haemat. 4, 312–320.
  • Sullivan, L. W., Herbert, V. & Reizenstein, P. G. 1962. Evidence against preferential intestinal absorption of physiologic quantities of liver-bound vitamin B12 by patients with pernicious anemia. Amer. J. clin. Nutr. 11, 568–573.
  • Swenseid, M. E., Gasster, M. & Halsted, J. A. 1954. Limits of absorption of orally administered vitamin B12; Effect of intrinsic factor sources. Proc. Soc. exp. Biol. (N. Y.) 86, 834–836.
  • Toohey, J. T. & Barker, H. A. 1961. Isolation of coenzyme B12 from liver. J. biol. Chem. 236, 560–563.

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