Relationship between in vivo chlorzoxazone hydroxylation, hepatic cytochrome P450 2E1 content and liver injury in obese non-alcoholic fatty liver disease patients.
Hepatol Res
; 34(1): 57-63, 2006 Jan.
Article
em En
| MEDLINE
| ID: mdl-16321567
The aim of the present study was to test the hypothesis that induction of cytochrome P450 2E1 (CYP2E1) in the liver of patients with non-alcoholic fatty liver disease (NAFLD) is correlated both with the in vivo activity of the cytochrome and with the development of liver injury. For this purpose, the liver content of CYP2E1 was determined by Western blot and the CYP2E1 activity by the in vivo hydroxylation of chlorzoxazone (CLZ). The study groups were obese women with an average body mass index (BMI) of 40.3kg/m(2), who underwent therapeutic gastroplasty or gastrectomy with a gastro-jejunal anastomosis. Further, the hepatic histology was determined to establish the pathological score grouping the subjects into three categories: control, steatosis and steatohepatitis. The liver CYP2E1 content and the CLZ hydroxylation of obese patients with steatosis and, particularly, with steatohepatitis were significantly higher than controls and correlated positively with both the severity of the liver damage. These data provide evidence that CYP2E1 would be involved in the mechanism of liver injury found in obese NAFLD patients. Also, the correlation between liver CYP2E1 content and in vivo CLZ hydroxylation would validate the latter as a reliable indicator of liver injury in NAFLD, thus providing a simple and not invasive method to study these patients.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Hepatol Res
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Chile
País de publicação:
Holanda