Results 41 to 50 of about 47,648 (179)
Identification of Indicators for Preterm Birth Using Retinoid Metabolites
Metabolites reflect the biochemical dynamics for the maintenance of pregnancy and parturition. UPLC-Q/TOF-MS and LC-MS/MS metabolomics were performed to identify and validate the plasma metabolomic signatures of preterm birth (PTB). We recruited pregnant
Young-Ah You +9 more
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This study aimed to assess the interaction between different dietary vitamin A (dVitA) levels and the same concentration of vitamin E (100 IU all-rac-α-tocopheryl acetate/kg feed) in growing-finishing pigs.
A. Olivares +3 more
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The present study was conducted to examine whether the intestinal esterification of retinol could be due to a microsomal acyl-CoA transferase. When the 'microsomal fraction' of rat mucosa was incubated with [3H]retinol and palmitoyl-CoA or oleoyl-CoA ...
P Helgerud, L B Petersen, K R Norum
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Perfusion feeding in rats induced a decrease in circulating retinol despite an adequate supply of vitamin A. We studied the effect of total parenteral nutrition (TPN) on the retinol specific carrier in rat, analyzing holo-RBP (bound to retinol) and apo ...
A Lespine +7 more
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Plasma kinetics of vitamin A in humans after a single oral dose of [8,9,19-13C]retinyl palmitate
The kinetics of vitamin A and its major metabolites were investigated in humans. Eleven healthy male subjects ingested 105 mumol (100,000 IU) of [8,9,19-13C]retinyl palmitate in an oily solution.
D V Reinersdorff, E Bush, D J Liberato
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Unusual properties of retinyl palmitate hydrolase activity in rat liver.
These studies report the hydrolysis of retinyl palmitate with liver homogenates and homogenate fractions from retinol-depleted rats. The studies utilized an effective in vitro assay for retinyl palmitate hydrolase (RPH) activity, in which microgram ...
E H Harrison, J E Smith, D S Goodman
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Accumulation of retinol in the liver after prolonged hyporetinolemia in the vitamin A-sufficient rat
We assessed the effects of prolonged reduction of plasma retinol concentrations (hyporetinolemia) on the distribution of tissue vitamin A (VA) and of its active compounds using a model of continuous recombinant human interleukin-6 (rhIL-6) infusion via ...
Sin H. Gieng +2 more
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Simultaneous measurement of serum probucol and lipid-soluble antioxidants.
A method is described for the simultaneous measurement of probucol, retinol, tocopherols, lycopene, and carotenes by reverse phase high performance liquid chromatography.
L Schäfer Elinder, G Walldius
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Vitamin A (retinol) and some of its derivatives are a group of fat-soluble compounds used in cosmetic products as bioactive ingredients. Therefore, it is necessary to perform the quality control of final product to ensure their efficacy and safety.
Víctor Vállez-Gomis +5 more
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