Document Detail


Modulation of ischemia-reperfusion-induced hepatic injury by Kupffer cells.
MedLine Citation:
PMID:  8200259     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To elucidate the role of Kupffer cells in ischemia-reperfusion-induced hepatic injury, hepatic injury induced by ischemia-reperfusion was analyzed after modulation of Kupffer cell function. Ischemia of the liver was performed by occlusion of both the portal vein and hepatic artery, which enter into the left lateral and median lobes of the liver. Blood flow in the ischemic lobe was reduced, in contrast to an increased blood flow in the nonischemic lobe during occlusion of the veins. Although hepatocyte damage was not demonstrated by ischemia for < 60 min, hepatic injury was found after reperfusion of the liver, and activation of Kupffer cells was morphologically demonstrated by electron microscopies. Suppression of Kupffer cells, induced by previous administration of gadolinium chloride or latex particles, reduced the grade of hepatic injury induced by ischemia-reperfusion. On the other hand, stimulation of Kupffer cell phagocytosis, induced by administration of latex particles at the time of reperfusion, aggravated the ischemia-reperfusion-induced hepatotoxicity, which was then reduced by simultaneous administration of superoxide dismutase. Kupffer cells, isolated from the rats treated with the ischemia-reperfusion procedure, have been found to release increased amounts of oxygen radical intermediates. These results suggest that hepatic injury induced by ischemia-reperfusion is modulated by the function of Kupffer cells and that superoxide anion released from Kupffer cells could play an important role in ischemia-reperfusion hepatic injury.
Authors:
Y Shiratori; H Kiriyama; Y Fukushi; T Nagura; H Takada; K Hai; K Kamii
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Digestive diseases and sciences     Volume:  39     ISSN:  0163-2116     ISO Abbreviation:  Dig. Dis. Sci.     Publication Date:  1994 Jun 
Date Detail:
Created Date:  1994-07-06     Completed Date:  1994-07-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7902782     Medline TA:  Dig Dis Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1265-72     Citation Subset:  AIM; IM    
Affiliation:
Department of Gastroenterology and Hepatology, Koshigaya Hospital, Dokkyo University School of Medicine, Saitama, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Free Radicals / metabolism
Ischemia / physiopathology
Kupffer Cells / physiology*,  ultrastructure
Liver / blood supply*,  ultrastructure
Male
Rats
Rats, Sprague-Dawley
Reperfusion Injury / physiopathology*
Chemical
Reg. No./Substance:
0/Free Radicals

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