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Published in: Digestive Diseases and Sciences 1/2007

01-01-2007 | Original Paper

Cyclooxygenase-2 Expression in Hepatocellular Carcinoma, Cirrhosis and Chronic Hepatitis in the United States

Authors: Sassan Pazirandeh, Urmila Khettry, Fredric D. Gordon, Robert H. Resnick, Jessica E. Murray, Sunil G. Sheth

Published in: Digestive Diseases and Sciences | Issue 1/2007

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Abstract

Aberrant expression of cyclooxygenase-2 in hepatocellular carcinoma was described in Asia. Using immunohistochemistry, we studied the expression of cyclooxygenase-2 in hepatocellular carcinoma, chronic hepatitis, and cirrhosis in a US institution. A staining score of 0–5 representing the sum of an intensity score and a distribution score was used. The mean scores were 2.2±1.60 for chronic hepatitis, 4.37±1.15 for cirrhosis, and 4.76±0.54 for hepatocellular carcinoma. We found a significant difference in mean staining scores between chronic hepatitis and cirrhosis (p < 0.0001), as well as between chronic hepatitis and hepatocellular carcinoma (p < 0.0001). Fibrosis correlated with cyclooxygenase-2 staining score (r=0.65). In conclusion: (1) Cyclooxygenase-2 expression is higher in cirrhosis and hepatocellular carcinoma when compared to chronic hepatitis. (2) Cyclooxygenase-2 expression correlates with the stage of fibrosis. (3) These results imply that in chronic hepatitis and possibly in cirrhosis, hepatocarcinogenesis may be a cyclooxygenase-2 dependent mechanism.
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Metadata
Title
Cyclooxygenase-2 Expression in Hepatocellular Carcinoma, Cirrhosis and Chronic Hepatitis in the United States
Authors
Sassan Pazirandeh
Urmila Khettry
Fredric D. Gordon
Robert H. Resnick
Jessica E. Murray
Sunil G. Sheth
Publication date
01-01-2007
Publisher
Springer US
Published in
Digestive Diseases and Sciences / Issue 1/2007
Print ISSN: 0163-2116
Electronic ISSN: 1573-2568
DOI
https://doi.org/10.1007/s10620-006-9184-3

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