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American Journal of Clinical Nutrition, Vol 52, 379-382, Copyright © 1990 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

Zinc metabolism in celiac disease

RW Crofton, PJ Aggett, S Gvozdanovic, D Gvozdanovic, NA Mowat and PW Brunt
Department of Medicine, University of Aberdeen, Scotland, UK.

The turnover of a radiolabeled (65Zn) pool of endogenous zinc was monitored by using a whole-body counter in eight patients with celiac disease (CD) and analyzed by using a two-compartment model. The biological half-life of the first compartment (1-3 wk postadministration) was similar in healthy volunteers (122 +/- 34 d, means +/- SD) and untreated patients (97 +/- 21 d). The second compartment in the patients (3-12 wk postadministration) was shorter (159 +/- 22.5 d. p less than 0.001) than were reference values (218 +/- 27 d) but increased (291 +/- 71 d) after the patients started gluten- free diets. The percentage absorption of 65Zn (9.25 kBq) from a test meal containing 31 mumol (2 mg) zinc was similar in untreated patients (30.0 +/- 13%) and healthy volunteers (32.5 +/- 12.4%). These data show that in mild untreated CD increased turnover and loss of endogenous zinc occurs whereas the absorption of zinc from a customary zinc intake may be normal. The pathophysiological basis of this loss was not investigated.




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Copyright © 1990 by The American Society for Nutrition