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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1987-3-11
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pubmed:abstractText |
To study the mechanism responsible for pancreatic NaHCO3 secretion, the inhibitor NN'-dicyclohexylcarbodiimide (DCCD) was administered to six secretin-infused, anaesthetized pigs. Pancreatic juice was collected from a catheter in the main pancreatic duct. Secretion rate was measured at several arterial pH values in each animal, both before and after DCCD. 15 (14-30) mumol kg-1 body wt DCCD, intra-arterially, reduced pancreatic NaHCO3 secretion from 296 (234-398) to 181 (134-237) mumol min-1 at arterial pH 7.43 (7.42-7.47). Similar fractional reductions of secretion occurred at lower arterial pH. Pancreatic tissue ATP concentration, 1.8 (1.4-2.0) mumol g-1 wet wt, was not changed by DCCD. DCCD, less than or equal to 10(-4) mol l-1, did not change Na,K-ATPase nor carbonic anhydrase activities in separate in vitro assay systems. It is concluded that DCCD reduced pancreatic NaHCO3 secretion by a mechanism not involving ATP depletion nor inhibition of Na,K-ATPase nor carbonic anhydrase activities in pancreatic cells. Because DCCD inhibits proton pumps, DCCD may have reduced NaHCO3 secretion through interfering with a proton pump involved in extruding H+ from HCO-3 secreting cells to interstitial fluid in the pancreas.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Adenosine Triphosphate,
http://linkedlifedata.com/resource/pubmed/chemical/Bicarbonates,
http://linkedlifedata.com/resource/pubmed/chemical/Carbodiimides,
http://linkedlifedata.com/resource/pubmed/chemical/Carbonic Anhydrases,
http://linkedlifedata.com/resource/pubmed/chemical/Dicyclohexylcarbodiimide,
http://linkedlifedata.com/resource/pubmed/chemical/Secretin,
http://linkedlifedata.com/resource/pubmed/chemical/Sodium-Potassium-Exchanging ATPase
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0001-6772
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
128
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
547-54
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:3028043-Adenosine Triphosphate,
pubmed-meshheading:3028043-Animals,
pubmed-meshheading:3028043-Bicarbonates,
pubmed-meshheading:3028043-Carbodiimides,
pubmed-meshheading:3028043-Carbonic Anhydrases,
pubmed-meshheading:3028043-Dicyclohexylcarbodiimide,
pubmed-meshheading:3028043-Hemodynamics,
pubmed-meshheading:3028043-Hydrogen-Ion Concentration,
pubmed-meshheading:3028043-Pancreas,
pubmed-meshheading:3028043-Pancreatic Juice,
pubmed-meshheading:3028043-Secretin,
pubmed-meshheading:3028043-Sodium-Potassium-Exchanging ATPase,
pubmed-meshheading:3028043-Swine
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pubmed:year |
1986
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pubmed:articleTitle |
NN'-dicyclohexylcarbodiimide (DCCD) reduces pancreatic NaHCO3 secretion without changing pancreatic tissue ATP levels.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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