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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1984-9-12
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pubmed:abstractText |
Absorption rates and metabolism of orally administered glucose and fructose were quantitated in conscious, overnight-fasted, Yucatan miniature swine. The pigs were surgically prepared, with catheters in the portal vein and a carotid artery. A continuous wave Doppler flow cuff was placed around the portal vein. Four to 7 days after surgery, arterial and portal venous blood samples were obtained in the basal state and at 15-minute intervals for 4 hours following oral administration of glucose or fructose (1.5 g/kg body weight). Absorption rates and intestinal metabolism were calculated from portal blood flow and arterio-venous concentration differences for glucose, fructose and lactate. Oral fructose administration was accompanied by a rise in intestinal lactate production, which correlated significantly with the fructose absorption rate. Intestinal lactate output during fructose absorption could account for 12% of the fructose absorbed or metabolized. A small rise in glucose output from the gut was also observed. In contrast, after oral glucose administration, only a modest rise in intestinal lactate output was noted. It could account for only 2% of the glucose absorbed or metabolized. No correlation between glucose absorption rate and intestinal lactate output was observed. These studies indicate that a significant portion of oral fructose is converted to lactate during absorption but that the major part enters the portal vein as fructose. Only minimal intestinal metabolism of ingested glucose occurs.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0022-3166
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
114
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1413-20
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6747724-Administration, Oral,
pubmed-meshheading:6747724-Animals,
pubmed-meshheading:6747724-Fructose,
pubmed-meshheading:6747724-Glucose,
pubmed-meshheading:6747724-Intestinal Absorption,
pubmed-meshheading:6747724-Intestines,
pubmed-meshheading:6747724-Lactates,
pubmed-meshheading:6747724-Swine,
pubmed-meshheading:6747724-Swine, Miniature
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pubmed:year |
1984
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pubmed:articleTitle |
Intestinal metabolism of orally administered glucose and fructose in Yucatan miniature swine.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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