Document Detail


The alterations in hepatic microcirculation and Kupffer cell activity after biliary drainage in jaundiced mice.
MedLine Citation:
PMID:  21866308     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND/PURPOSE: The aim of this study is to examine the effects of biliary drainage on hepatic microcirculation and Kupffer cell activity in the liver with obstructive jaundice. METHODS: Common bile duct ligation and division was performed on C57BL/6 mice to induce obstructive jaundice. Seven or 14 days after surgery, some mice underwent biliary drainage. Three days after biliary drainage, sinusoidal perfusion, leukocyte rolling and sticking in the postsinusoidal venules, and the diameters of sinusoids containing blood flow were evaluated using intravital microscopy. Kupffer cell phagocytic activity was estimated as the ratio of Kupffer cells that phagocytosed fluorescent-labeled particles to sinusoids containing blood flow. RESULTS: Sinusoidal perfusion after biliary drainage was significantly increased compared with that in livers with obstructive jaundice, but remained decreased compared with controls. Although the number of rolling leukocytes and sticking leukocytes was significantly decreased, the diameters of sinusoids remained reduced, associated with an increase in Kupffer cell phagocytic activity compared with controls even after biliary drainage. CONCLUSIONS: Leukocyte-endothelial cell interaction is ameliorated but sinusoids remain narrowed due to swelling of activated Kupffer cells; this might cause deterioration of hepatic microcirculation during the early phase of biliary drainage.
Authors:
Tomohisa Okaya; Koji Nakagawa; Fumio Kimura; Hiroaki Shimizu; Hiroyuki Yoshidome; Masayuki Ohtsuka; Atsushi Kato; Hideyuki Yoshitomi; Hiroshi Ito; Masaru Miyazaki
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-25
Journal Detail:
Title:  Journal of hepato-biliary-pancreatic sciences     Volume:  -     ISSN:  1868-6982     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101528587     Medline TA:  J Hepatobiliary Pancreat Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Surgery, Chibaken Saiseikai Narashino Hospital, 1-1-1 Izumichou, Narashino, Chiba, 275-8580, Japan.
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