| Autor: |
Shears GE; Department of Applied Biochemistry and Food Science, Nottingham University, School of Agriculture, Sutton Bonington, Loughborough, Leics., Neale RJ, Ledward DA |
| Jazyk: |
angličtina |
| Zdroj: |
The British journal of nutrition [Br J Nutr] 1989 May; Vol. 61 (3), pp. 573-81. |
| DOI: |
10.1079/bjn19890144 |
| Abstrakt: |
1. In vivo 59Fe absorption from intrinsically labelled Fe-containing fractions of liver and blood were measured in rats by intragastric dosing. All rats were fed on a low-Fe diet for 3 d before dosing in order to standardize the Fe status of the intestinal mucosal cells. 2. An increase in digestion time from 2 to 12 h increased 59Fe absorption (P less than 0.01) from all fractions except ferritin. 3. Fe-deficient rats when compared with essentially Fe-replete rats showed decreased gastric retention for all fractions, but increased 59Fe absorption over 2 h only from ferritin. Ferritin showed several unusual absorption characteristics. 4. Dietary tungsten supplementation of Fe-deficient rats reduced the ferroxidase activity of intestinal mucosal xanthine oxidase. In addition, gastric retention and 59Fe absorption (P less than 0.05) from all fractions were increased. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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