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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1993-8-5
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pubmed:abstractText |
A valuable system has been developed to study replication of adult beta cells. Isolated islets from adult rats were partially dispersed and plated on dishes coated with extracellular matrix from bovine-corneal endothelial cells. Within 24 h islet cells attached to the matrix and formed a monolayer. The proportion of insulin-, glucagon-, and somatostatin-containing cells in the cultures was characteristic of whole islets. Function of beta cells was assessed by measuring glucose-stimulated insulin release. Insulin release from 7-day-old cultures increased 19-fold after a 16.7 mM glucose challenge indicating that beta-cell function was normal. Cellular replication in the cultures was assessed using the thymidine analogue 5-bromo-2'-deoxyuridine (BrdU). BrdU incorporation was noted in insulin-, glucagon-, and somatostatin-containing cells and also in non-endocrine cells. Among endocrine cells, the majority of BrdU labeling occurred in beta cells. Beta-cell replication potential was assessed using different concentrations of glucose. The incorporation of BrdU into beta cells was affected in a dose-dependent manner by glucose; over a 10-fold increase of beta-cell BrdU labeling was observed when glucose concentration was raised from 5.5 to 16.7 mM. The system proved advantageous for studying the replication potential of adult beta cells.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
1071-2690
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
29A
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
339-44
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:8320184-Animals,
pubmed-meshheading:8320184-Cattle,
pubmed-meshheading:8320184-Cell Division,
pubmed-meshheading:8320184-Cells, Cultured,
pubmed-meshheading:8320184-Culture Media,
pubmed-meshheading:8320184-Dose-Response Relationship, Drug,
pubmed-meshheading:8320184-Endothelium, Corneal,
pubmed-meshheading:8320184-Extracellular Matrix,
pubmed-meshheading:8320184-Glucose,
pubmed-meshheading:8320184-Insulin,
pubmed-meshheading:8320184-Islets of Langerhans,
pubmed-meshheading:8320184-Male,
pubmed-meshheading:8320184-Rats,
pubmed-meshheading:8320184-Rats, Sprague-Dawley
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pubmed:year |
1993
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pubmed:articleTitle |
Replication of adult pancreatic-beta cells cultured on bovine corneal endothelial cell extracellular matrix.
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pubmed:affiliation |
Joslin Diabetes Center, Boston, MA 02215.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|