Document Detail


Studies on the viability of the isolated vascularly perfused rat colon.
MedLine Citation:
PMID:  8886579     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The colon contains large numbers of endocrine cells. Insight into their physiological function is limited. This is due to the fact that no sufficient model of isolated endocrine colon cells is available. In the present study we introduce an isolated vascularly perfused colon model for in vitro studies. This model offers the advantage that it keeps the endocrine cells in their physiological orientation and environment. The gut mucosa is highly sensitive to ischemia. Therefore, a careful validation of its viability is crucial in gut organ preparations. This study demonstrates that, by utilizing an oxygenated vascular medium supplemented with 25% washed bovine erythrocytes, a perfusion of the colon is achieved for at least 1 h without obvious tissue injuries. During this time parameters such as perfusion pressure, venous lactate dehydrogenase release, glucose consumption, lactate output, oxygen consumption, perfusate loss by the preparation and morphology were analyzed. Dependent on stimulation, the endocrine L cells of the colon released glucagon-like peptide-I upon arterial perfusion of methacholine or gastrin-releasing peptide. In conclusion, a model for the isolated perfusion of the colon is introduced which is suitable for studies of endocrine colon cells.
Authors:
C Herrmann-Rinke; R Eissele; R Arnold; B Göke
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Publication Detail:
Type:  In Vitro; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Digestion     Volume:  57     ISSN:  0012-2823     ISO Abbreviation:  Digestion     Publication Date:  1996  
Date Detail:
Created Date:  1997-02-12     Completed Date:  1997-02-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0150472     Medline TA:  Digestion     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  349-55     Citation Subset:  IM    
Affiliation:
Department of Internal Medicine, Philipps University of Marburg, Germany.
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MeSH Terms
Descriptor/Qualifier:
Animals
Cell Survival
Colon / blood supply*,  cytology
Glucagon / secretion
Glucagon-Like Peptide 1
Glucose / metabolism
Intestinal Mucosa / cytology
L Cells (Cell Line) / metabolism
L-Lactate Dehydrogenase / blood
Lactates / metabolism
Male
Mice
Oxygen Consumption
Peptide Fragments / secretion
Perfusion
Protein Precursors / secretion
Rats
Rats, Wistar
Chemical
Reg. No./Substance:
0/Lactates; 0/Peptide Fragments; 0/Protein Precursors; 50-99-7/Glucose; 89750-14-1/Glucagon-Like Peptide 1; 9007-92-5/Glucagon; EC 1.1.1.27/L-Lactate Dehydrogenase

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


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