Document Detail


Blood flow to the pancreatic islet parenchyma of the Atlantic hagfish (Myxine glutinosa).
MedLine Citation:
PMID:  9623631     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The islet organ of the Atlantic hagfish, a cyclostome, phylogenetically is the most original islet parenchyma. It is well equipped with blood vessels, but lacks nerves. The aim of the present study was to evaluate the relative proportions between regional blood flows in these animals with a microsphere technique and with laser-Doppler flowmetry. As regards the results obtained in the kidneys, gills, and islet organ, the data were essentially the same found using both methods. Approximately 20% of the injected microspheres were found in the kidneys; when corrected for weight, the gill bodies and the islet organ were also found to have the same blood perfusion. The blood flow to the brain and that of the gut and the liver were only approximately 30% and 10%, respectively, of that to the kidney. Topical application of the nitric oxide donor, sodium nitroprusside failed to affect the islet blood flow. Apart from this observation, this non-innervated "primitive" islet parenchyma did not differ from that of the amply innervated mammalian islets with regard to their high basal blood perfusion.
Authors:
L Jansson; S Falkmer
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et métabolisme     Volume:  30     ISSN:  0018-5043     ISO Abbreviation:  Horm. Metab. Res.     Publication Date:  1998 Apr 
Date Detail:
Created Date:  1998-08-27     Completed Date:  1998-08-27     Revised Date:  2009-02-19    
Medline Journal Info:
Nlm Unique ID:  0177722     Medline TA:  Horm Metab Res     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  182-7     Citation Subset:  IM    
Affiliation:
Department of Medical Cell Biology, Uppsala University, Sweden.
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MeSH Terms
Descriptor/Qualifier:
Animals
Hagfishes / physiology*
Islets of Langerhans / blood supply*
Laser-Doppler Flowmetry
Microspheres
Nitric Oxide / pharmacology
Nitroprusside / pharmacology
Regional Blood Flow
Chemical
Reg. No./Substance:
10102-43-9/Nitric Oxide; 15078-28-1/Nitroprusside

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


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