Document Detail

Direct identification of electrophysiologically monitored cells within intact mouse islets of Langerhans.
MedLine Citation:
PMID:  3510929     Owner:  NLM     Status:  MEDLINE    
Cells found to be electrically active within microdissected mouse islets of Langerhans perifused with high (greater than or equal to 11.1 mM) glucose concentrations were labeled by injecting Lucifer yellow through the recording electrode. After fixation, these cells were located by fluorescence microscopy on sections serially cut throughout the islets and were subsequently identified by immunofluororescence staining with specific anti-islet hormone sera. Electrophysiologic control confirmed that the electrode tip had remained within the same cell throughout the experiment and showed that Lucifer yellow labeling did not affect the electrical activity of the impaled cell. Upon individual impalements, Lucifer yellow labeled either the impaled cell alone or this cell and some of its neighbors to which it was dye coupled. Immunofluorescence staining of the Lucifer yellow-labeled cells revealed that glucose-induced electrical activity was recorded from individual B-cells or groups of dye-coupled B-cells as well as from A-cells coupled to B-cells.
P Meda; R M Santos; I Atwater
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Diabetes     Volume:  35     ISSN:  0012-1797     ISO Abbreviation:  Diabetes     Publication Date:  1986 Feb 
Date Detail:
Created Date:  1986-03-10     Completed Date:  1986-03-10     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0372763     Medline TA:  Diabetes     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  232-6     Citation Subset:  AIM; IM    
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MeSH Terms
Action Potentials / drug effects
Fluorescent Antibody Technique
Glucose / pharmacology
Islets of Langerhans / cytology*,  drug effects,  physiology
Isoquinolines / diagnostic use
Microscopy, Fluorescence
Monitoring, Physiologic
Grant Support
5R01-AM-30519-02/AM/NIADDK NIH HHS
Reg. No./Substance:
0/Isoquinolines; 50-99-7/Glucose; 77944-88-8/lucifer yellow

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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