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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1996-6-27
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pubmed:abstractText |
The cellular mechanisms associated with the replicative response of hepatocytes to growth factor simulation is incompletely understood. Murine hepatocyte DNA synthesis is altered by cyclic AMP, suggesting that protein kinase A is involved in the cellular mechanisms associated with liver growth. The purpose of this study was to evaluate the role of protein kinase A in human hepatocyte DNA synthesis. human hepatocytes were isolated and maintained in primary culture on rat tail collagen. DNA synthesis was evaluated by determining [3H] thymidine incorporation. Human hepatocytes between 24 and 96 hr following harvest increased DNA synthesis in response to epidermal growth factor but not in response to glucagon, a stimulant of adenyl cyclase, or dibutyryl cyclic AMP. Mitogen-stimulated DNA synthesis was decreased by dibutyryl cyclic AMP. Cyclic AMP isomers that block or stimulate the effect of cyclic AMP on protein kinase A did not significantly alter resting or mitogens-stimulated human hepatocyte DNA synthesis. The results suggest that increased protein kinase A activity does not produce human hepatocyte replicative DNA synthesis.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0163-2116
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
41
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1014-21
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:8625744-Cell Culture Techniques,
pubmed-meshheading:8625744-Cells, Cultured,
pubmed-meshheading:8625744-Cyclic AMP-Dependent Protein Kinases,
pubmed-meshheading:8625744-DNA,
pubmed-meshheading:8625744-DNA Replication,
pubmed-meshheading:8625744-Female,
pubmed-meshheading:8625744-Humans,
pubmed-meshheading:8625744-Liver,
pubmed-meshheading:8625744-Male,
pubmed-meshheading:8625744-Middle Aged,
pubmed-meshheading:8625744-Thymidine,
pubmed-meshheading:8625744-Time Factors,
pubmed-meshheading:8625744-Tritium
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pubmed:year |
1996
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pubmed:articleTitle |
Role of protein kinase A in human hepatocyte DNA synthesis.
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pubmed:affiliation |
Department of Surgery, St. Louis University Hospital, Missouri 63110-0250, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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