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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1984-8-7
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pubmed:abstractText |
The effect of glibenclamide on the osmotic resistance of beta-cells was measured using isolated beta-cells from ob/ob-mice. The beta-cells were incubated at different osmolarity and the diameters of the approximately spherical beta-cells were measured at 22 degrees C or at 37 degrees C with the aid of a screw micrometer eyepiece fitted to a light microscope. A near linear decrease of beta-cell diameter was found with increasing osmolarity (111-617 mosm/l). Control experiments showed that the membrane stabilizers, imipramine (0.1 mmol/l) or tetracaine (1 mmol/l), strongly reduced the osmotic swelling induced by low osmolarity (180 mosm/l). Glibenclamide (0.001 or 0.2 mmol/l) did not affect the beta-cell diameter at normal osmolarity (317 mosm/l) but reduced the swelling induced by hypoosmolarity (180 mosm/l) and the shrinking induced by hyperosmolarity (617 mosm/l). It is suggested that glibenclamide increases the osmotic resistance of isolated beta-cells by changing transmembrane flow of ions.
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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/Culture Media,
http://linkedlifedata.com/resource/pubmed/chemical/Glyburide,
http://linkedlifedata.com/resource/pubmed/chemical/Imipramine,
http://linkedlifedata.com/resource/pubmed/chemical/Tetracaine,
http://linkedlifedata.com/resource/pubmed/chemical/Tolbutamide
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0001-6772
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
120
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
407-15
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6430034-Animals,
pubmed-meshheading:6430034-Cell Membrane,
pubmed-meshheading:6430034-Culture Media,
pubmed-meshheading:6430034-Glyburide,
pubmed-meshheading:6430034-Imipramine,
pubmed-meshheading:6430034-Islets of Langerhans,
pubmed-meshheading:6430034-Mice,
pubmed-meshheading:6430034-Mice, Obese,
pubmed-meshheading:6430034-Osmolar Concentration,
pubmed-meshheading:6430034-Tetracaine,
pubmed-meshheading:6430034-Tolbutamide
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pubmed:year |
1984
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pubmed:articleTitle |
Effect of glibenclamide on the osmotic resistance of pancreatic beta-cells.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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