1963
DOI: 10.1136/gut.4.3.261
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Use of labelled triolein, vitamin A, and D-xylose in the diagnosis of malabsorption

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Cited by 10 publications
(1 citation statement)
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“…The interpretation of serum retinol concentration following oral administration is not straightforward because there are several steps in the handling of retinol esters which would determine the bioavailability of the molecule once administered. Most of the early work using the ‘vitamin A absorption test’ developed in the 1950s and 1960s used high doses of retinol esters, comparable with the doses used in our study, but clinical and analytical protocols were not standardized and results are difficult to compare from one laboratory to another 18 –20 . Subsequently, it was appreciated that the hepatic retinol store influences the handling of retinol by the liver, so that in a state of repletion retinol is stored in the liver, but in deplete individuals retinol is released for transport by retinol binding protein for use by retinol‐dependent tissues 21 .…”
Section: Discussionmentioning
confidence: 83%
“…The interpretation of serum retinol concentration following oral administration is not straightforward because there are several steps in the handling of retinol esters which would determine the bioavailability of the molecule once administered. Most of the early work using the ‘vitamin A absorption test’ developed in the 1950s and 1960s used high doses of retinol esters, comparable with the doses used in our study, but clinical and analytical protocols were not standardized and results are difficult to compare from one laboratory to another 18 –20 . Subsequently, it was appreciated that the hepatic retinol store influences the handling of retinol by the liver, so that in a state of repletion retinol is stored in the liver, but in deplete individuals retinol is released for transport by retinol binding protein for use by retinol‐dependent tissues 21 .…”
Section: Discussionmentioning
confidence: 83%