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Hepatic lipid peroxidation and cytochrome P-450 2E1 in pediatric nonalcoholic fatty liver disease and its subtypes.

Published on Oct 1, 2011in Journal of Clinical Gastroenterology2.72
· DOI :10.1097/MCG.0b013e31821377e4
Lauren N. Bell12
Estimated H-index: 12
(IUPUI: Indiana University – Purdue University Indianapolis),
Jean P. Molleston28
Estimated H-index: 28
+ 4 AuthorsNaga Chalasani75
Estimated H-index: 75
Abstract
Goal To compare hepatic lipid peroxidation and cytochrome P-450 2E1 (CYP2E1) protein content in liver biopsies from children with nonalcoholic fatty liver disease (NAFLD) and 2 control groups. Background Elevated hepatic lipid peroxidation resulting from increased hepatic CYP2E1 enzyme activity is involved in the pathogenesis of NAFLD and nonalcoholic steatohepatitis (NASH) in adults, but studies in children are lacking. Study Liver biopsies from 59 children with NAFLD (49 with NASH), 10 children with normal liver histology, and 9 children with mild chronic hepatitis C (HCV) infection were examined. Hepatic malondialdehyde (a measure of lipid peroxidation) levels and CYP2E1 protein content were quantitated, as a percentage of the total area, by immunohistochemical staining of liver biopsy material followed by digital image quantitation. Results Lipid peroxidation was significantly greater in NAFLD liver biopsies (46.7±20.8%) compared with biopsies from children with normal liver histology (7.6±9.4%; P Conclusions Hepatic lipid peroxidation is increased in children with NAFLD but this is not related to hepatic CYP2E1 expression. No difference in lipid peroxidation in pediatric NAFLD versus NASH argues against a role in disease progression.
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