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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
|
pubmed:dateCreated |
1979-5-26
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pubmed:abstractText |
The relationship between beta-cell replication and insulin release was investigated utilizing neonatal rat pancreatic monolayer cell cultures. Glucose-induced insulin release was either inhibited using diazoxide or mannoheptulose, or potentiated using theophylline. The corresponding effects on the frequency of beta-cell replication were determined by incubating cultures with [3H]thymidine and estimating the frequency of beta-cell labeling in aldehyde thionine-stained radioautographs. beta-Cell replication and insulin release were shown to be dissociable processes in two ways. First, in the presence of diazoxide (1-100 microgram/ml), insulin release was inhibited by as much as 86%, while the frequency of beta-cell replication was not reduced. Second, in the presence of theophylline (1 mM), insulin release was increased by 23%, while beta-cell replication was inhibited. Finally, the inhibition of both beta-cell replication and insulin release by mannoheptulose (5.5 mM) indicated that glucose utilization may be important for both of these beta-cell processes.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Diazoxide,
http://linkedlifedata.com/resource/pubmed/chemical/Glucose,
http://linkedlifedata.com/resource/pubmed/chemical/Insulin,
http://linkedlifedata.com/resource/pubmed/chemical/Mannoheptulose,
http://linkedlifedata.com/resource/pubmed/chemical/Theophylline
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0013-7227
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
103
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1321-7
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:369848-Animals,
pubmed-meshheading:369848-Cell Division,
pubmed-meshheading:369848-Cells, Cultured,
pubmed-meshheading:369848-Diazoxide,
pubmed-meshheading:369848-Glucose,
pubmed-meshheading:369848-Insulin,
pubmed-meshheading:369848-Islets of Langerhans,
pubmed-meshheading:369848-Mannoheptulose,
pubmed-meshheading:369848-Mitotic Index,
pubmed-meshheading:369848-Rats,
pubmed-meshheading:369848-Theophylline
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pubmed:year |
1978
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pubmed:articleTitle |
Pancreatic beta-cell replication: relation to insulin secretion.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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