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Mechanisms of iron absorption and transport in neonatal rat intestine.
The absorption of an oral dose of iron (Fe59) sulfate has been shown to occur throughout the entire small intestine of the neonate. Fe59 absorption and transport across the duodenum and jejunum wereExpand
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Intrinsic factor-cobalamin accumulates in the ilea of mice treated with chloroquine.
Chloroquine, which interferes with the degradation of a number of transport proteins, impedes the exit of cobalamin from the small intestine of the mouse. This study was designed to determine ifExpand
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Absorption of saturated and unsaturated fatty acids by rat jejunum and ileum.
The absorption of C14-labeled octanoic, myristic, palmitic, stearic, oleic, and linoleic acids was studied in isolated loops of rat intestine, in vivo. Fatty acids of shorter chain length, orExpand
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A specific gastrin receptor site in the rat stomach.
A specific receptor for gastrin I has been demonstrated in the rat stomach fundus. Specific binding of 125I-labelled gastrin I was localised to particles sedimenting between 250--20 000 X g.Expand
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Characterization of a pancreatic tumor containing vasoactive intestinal peptide, neurotensin, and pancreatic polypeptide.
The biochemical characteristics of a pancreatic tumor from a patient with watery diarrhea, hypokalemia, hypochlorhydria, and steatorrhea is described Plasma concentrations of vasoactive intestinalExpand
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In vivo evidence that cobalamin is absorbed by receptor-mediated endocytosis in the mouse.
This study examines the mechanism of cobalamin absorption in the context of receptor-mediated endocytosis. Uptake, the amount of cobalamin that left the intestinal lumen, and transport, the componentExpand
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Humoral regulation of vitamin B12 absorption by pregnant mouse small intestine.
In vivo experiments in which pregnant mice were fed an oral dose of 40 ng of [57Co]B12 demonstrated that there was a progressive increase in B12 absorption in the 3rd week of pregnancy. TheExpand
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Effect of Placental Lactogen on the Number of Intrinsic Factor Receptors in the Pregnant Mouse
Abstract Experiments were designed to identify the factor in serum which has been shown to result in an increased number of intrinsic factor (IF) receptors in the small intestine of the mouse in lateExpand
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Intrinsic factor-independent transport of vitamin B 12 across the gut of the neonatal rat.
When Co5’-vitamin B12 is fed by stomach tube to neonatal rats the vitamin is present in the wall of the lower jejunum and upper ileum within 30 min. The vitamin appears in the carcass 2 hr afterExpand
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