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Nitric oxide and pro-inflammatory cytokines in acute hepatitis B.
MedLine Citation:
PMID:  15066646     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background: Experimental studies demonstrate that hepatitis B virus may induce nitric oxide (NO) production in infected hepatocytes. Its presence in acute hepatitis B patients has not been studied. Methods: Serum levels of nitric oxide and its regulatory pro-inflammatory cytokines were detected in 15 patients with uncomplicated acute hepatitis B, 19 blood donors and 15 chronic hepatitis B patients. Cytokines were determined with an immunoassay. Nitric oxide was measured as the serum metabolic products of nitrates and nitrites using a modification of the Griess reaction. Results: All detected cytokines were increased in acute hepatitis B patients compared to healthy controls (p<0.001 for TNF-alpha, p<0.05 for IL-6, p<0.001 for IL1-beta and p<0.001 for IFN-gamma). High serum levels of nitric oxide were found in acute hepatitis B patients (156.96+/-9.76 micromol/l) compared to healthy controls (51+/-6.2 micromol/l, p<0.001) and chronic hepatitis B patients (63.97+/-3.78 micromol/l, p<0.001). No significant correlations were found between NO, cytokine levels and transaminases. Conclusions: High levels of nitric oxide and its regulatory cytokines were found in a group of patients with uncomplicated acute hepatitis B. The exact role of NO in the disease pathogenesis and outcome needs to be studied further.
Authors:
Meri Koulentaki; George Notas; Efthimia Petinaki; Vassilis Valatas; Ioannis A. Mouzas; Elias Castanas; Elias A. Kouroumalis
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  European journal of internal medicine     Volume:  15     ISSN:  1879-0828     ISO Abbreviation:  Eur. J. Intern. Med.     Publication Date:  2004 Feb 
Date Detail:
Created Date:  2004-Apr-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9003220     Medline TA:  Eur J Intern Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  35-38     Citation Subset:  -    
Affiliation:
Department of Gastroenterology, University Hospital Heraklion, P.O. Box 1352, Crete, Greece.
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