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Hepatic regeneration and functional recovery following partial liver resection in an experimental model of hepatic steatosis treated with omega-3 fatty acids.
MedLine Citation:
PMID:  23456631     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND: Omega-3 fatty acids (FAs) have been shown to reduce experimental hepatic steatosis and protect the liver from ischaemia-reperfusion injury. The aim of this study was to examine the effects of omega-3 FAs on regeneration of steatotic liver.
METHODS: Steatosis was induced in rats by a 3-week methionine/choline-deficient diet, which was continued for an additional 2 weeks in conjunction with oral administration of omega-3 FAs or saline solution. Steatosis was graded histologically and quantified by proton magnetic resonance spectroscopy ( H-MRS) before and after the diet/treatment. Liver function was determined by Tc-labelled mebrofenin hepatobiliary scintigraphy (HBS). In separate experiments, the hepatic regenerative capacity and functional recovery of omega-3 FA-treated, saline-treated or non-steatotic (control) rats were investigated 1, 2, 3 and 5 days after partial (70 per cent) liver resection by measurement of liver weight change and hepatocyte proliferation (Ki-67) and HBS.
RESULTS: Severe steatosis (over 66 per cent) in the saline group was reduced by omega-3 FAs to mild steatosis (less than 33 per cent), and hepatic fat content as assessed by H-MRS decreased 2·2-fold. Tc-mebrofenin uptake in the saline group was more than 50 per cent lower than in the control group, confirming the functional effects of steatosis. Tc-mebrofenin uptake and regenerated liver mass were significantly greater in the omega-3 group compared with the saline group on days 1 and 3. The posthepatectomy proliferation peak response was delayed until day 2 in saline-treated rats, compared with day 1 in the omega-3 and control groups.
CONCLUSION: Omega-3 FAs effectively reduced severe hepatic steatosis, which was associated with improved liver regeneration and functional recovery following partial hepatectomy.
Authors:
H A Marsman; W de Graaf; M Heger; R F van Golen; F J W Ten Kate; R Bennink; T M van Gulik
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The British journal of surgery     Volume:  100     ISSN:  1365-2168     ISO Abbreviation:  Br J Surg     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-03-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372553     Medline TA:  Br J Surg     Country:  England    
Other Details:
Languages:  eng     Pagination:  674-83     Citation Subset:  AIM; IM    
Copyright Information:
© 2013 British Journal of Surgery Society Ltd. Published by John Wiley & Sons Ltd.
Affiliation:
Departments of Surgery, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands.
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