Document Detail


Insulin-induced electrophysiology changes in human pleura are mediated via its receptor.
MedLine Citation:
PMID:  20814548     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Insulin directly changes the sheep pleural electrophysiology. The aim of this study was to investigate whether insulin induces similar effects in human pleura, to clarify insulin receptor's involvement, and to demonstrate if glibenclamide (hypoglycemic agent) reverses this effect.
METHODS: Human parietal pleural specimens were mounted in Ussing chambers. Solutions containing insulin or glibenclamide and insulin with anti-insulin antibody, anti-insulin receptor antibody, and glibenclamide were used. The transmesothelial resistance (R(TM)) was determined. Immunohistochemistry for the presence of Insulin Receptors (IRa, IRb) was also performed.
RESULTS: Insulin increased R(TM) within 1st min (P = .016), when added mesothelially which was inhibited by the anti-insulin and anti-insulin receptor antibodies. Glibenclamide also eliminated the insulin-induced changes. Immunohistochemistry verified the presence of IRa and IRb.
CONCLUSION: Insulin induces electrochemical changes in humans as in sheep via interaction with its receptor. This effect is abolished by glibenclamide.
Authors:
V K Kouritas; M Ioannou; C N Foroulis; N Desimonas; K Evaggelopoulos; K I Gourgoulianis; P A Molyvdas; C Hatzoglou
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Publication Detail:
Type:  Journal Article     Date:  2010-08-12
Journal Detail:
Title:  Experimental diabetes research     Volume:  2010     ISSN:  1687-5303     ISO Abbreviation:  Exp Diabetes Res     Publication Date:  2010  
Date Detail:
Created Date:  2010-09-03     Completed Date:  2010-12-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101274844     Medline TA:  Exp Diabetes Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  853176     Citation Subset:  IM    
Affiliation:
Department of Physiology, Medical School, University of Thessaly, Mezourlo, New Buildings, Larissa, Greece. kouritas@otenet.gr
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MeSH Terms
Descriptor/Qualifier:
Glyburide / pharmacology
Humans
Insulin / pharmacology*
Pleura / drug effects*,  physiology
Receptor, IGF Type 1 / physiology
Receptor, Insulin / analysis,  physiology*
Chemical
Reg. No./Substance:
10238-21-8/Glyburide; 11061-68-0/Insulin; EC 2.7.10.1/Receptor, IGF Type 1; EC 2.7.10.1/Receptor, Insulin

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


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