Title: PROGRESS AND RATE OF ABSORPTION OF RADIOPHOSPHORUS THROUGH THE INTESTINAL TRACT OF RATS
Abstract:Rates of absorption and the movement of P 32 through the intestine of adult rats were measured. These two measurements were combined mathematically to estimate the effective contribution of each segme...Rates of absorption and the movement of P 32 through the intestine of adult rats were measured. These two measurements were combined mathematically to estimate the effective contribution of each segment of the intestinal tract toward normal absorption of phosphorus. All parts of the intestinal tract were able to absorb P 32 . The rate of absorption was greatest at the duodenum, followed by the jejunum, ileum, colon, and stomach in decreasing order. However, since P 32 passed rapidly through the duodenum and jejunum, less material was available to be absorbed, with the result that absorption was less effective in these segments than it was in the ileum. When the progress and rate of absorption was combined quantitatively, the greatest effective absorption was found to occur in the ileum (which absorbed 38% of the total), followed by the duodenum (29%), jejunum (25%), and colon (8%). Two factors were found to limit P 32 absorption: (a) movement of the isotope into gut segments having slower absorption rate, and (b) decreased absorption of P 32 in each gut loop with time. Similar factors had been found previously to limit Sr 89 absorption.Read More
Publication Year: 1961
Publication Date: 1961-03-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
Access and Citation
Cited By Count: 24
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