Linked Life Data

16298610

Source:http://linkedlifedata.com/resource/pubmed/id/16298610

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2005-11-21
pubmed:abstractText
Pancreatic islet cell transplantation is a promising approach to restoring normoglycemia in diabetic patients. The outcome of islet transplantation is uncertain for two reasons: The quality of isolated islets is still poorly defined and the functional potential of transplanted islets is difficult to predict. Therefore, one of the primary challenges in islet transplantation is to identify and understand the changes taking place in islets after isolation and culture. Description of such changes in living islet cells offers insights not achievable by use of fixed-cell techniques. Three fluorescent dyes, dichlorodihydrofluorescein diacetate, tetramethylrhodamine methyl ester perchlorate (TMRM), and fluorescent wheat germ agglutinin, were used to assess either overall oxidative stress, time-dependent mitochondrial membrane potentials, or localization of oligosaccharides. Confocal microscopy was performed with a microlens-enhanced Nipkow disk-based confocal system mounted on an inverse microscope. We were able to show differences in the amount of oligosaccharides on the cell surface between endocrine and exocrine cells in freshly isolated human islet preparations. The study of the mitochondrial membrane potential via TMRM proved to be useful to early identification of damaged or stressed cells. Thus a combination of fluorescent dyes as subcellular markers, with a powerful live confocal imaging system may be of great value to isolation and culture.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0041-1345
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3409-11
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
"Real-time" assessment of human islet preparations with confocal live cell imaging.
pubmed:affiliation
KMT-ZIT Laboratory, Innsbruck Medical University, Anichstrasse 35, 6020 Innsbruck, Austria.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't