rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
1993-11-22
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pubmed:abstractText |
Treating rats with pertussis toxin (PTX) both elevated the adipocyte cAMP levels and impaired sensitivity and responsiveness to the antilipolytic effect of insulin in the presence of different beta-adrenergic agonists. However, in the presence of a fixed medium concentration of the degradable cAMP analogue, 8-bromo-cAMP, the effect of insulin was similar in PTX- and control cells. Elevating the cAMP levels in control cells either through different concentrations of the cAMP analogue or addition of adenosine deaminase impaired both insulin sensitivity and responsiveness to a similar extent as that seen in PTX-treated cells. The antilipolytic effect of insulin was exerted through the activation of the cGMP-inhibitable phosphodiesterase (cGI-PDE) as it was dose-dependently impaired by the specific cGI-PDE inhibitor OPC 3911. The results show the importance of the cellular cAMP levels in modulating insulin sensitivity and action. Gi plays a minor role, if any, for the signal transduction of the antilipolytic effect of insulin.
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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 |
Oct
|
pubmed:issn |
0006-291X
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pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
15
|
pubmed:volume |
196
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
287-93
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:8216302-8-Bromo Cyclic Adenosine Monophosphate,
pubmed-meshheading:8216302-Adipocytes,
pubmed-meshheading:8216302-Animals,
pubmed-meshheading:8216302-Cyclic AMP,
pubmed-meshheading:8216302-Epididymis,
pubmed-meshheading:8216302-GTP-Binding Proteins,
pubmed-meshheading:8216302-Insulin,
pubmed-meshheading:8216302-Lipolysis,
pubmed-meshheading:8216302-Male,
pubmed-meshheading:8216302-Pertussis Toxin,
pubmed-meshheading:8216302-Phosphodiesterase Inhibitors,
pubmed-meshheading:8216302-Quinolones,
pubmed-meshheading:8216302-Rats,
pubmed-meshheading:8216302-Rats, Sprague-Dawley,
pubmed-meshheading:8216302-Signal Transduction,
pubmed-meshheading:8216302-Virulence Factors, Bordetella
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pubmed:year |
1993
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pubmed:articleTitle |
Cellular cyclic AMP levels modulate insulin sensitivity and responsiveness--evidence against a significant role of Gi in insulin signal transduction.
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pubmed:affiliation |
Department of Medicine, University of Göteborg, Sahlgren's Hospital, Göteborg, Sweden.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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