Journal
JOURNAL OF HEPATOLOGY
Volume 42, Issue 3, Pages 371-377Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhep.2004.11.033
Keywords
acetaminophen; ethanol; sinusoidal endothelial cells; microcirculation
Categories
Funding
- NIAAA NIH HHS [R0-1 AA12436] Funding Source: Medline
Ask authors/readers for more resources
Background/Aims: The pathophysiology of binge drinking of ethanol and its potentiation of acetaminophen (APAP) toxicity has received very little attention. To evaluate if ethanol hinging sensitizes hepatic sinusoidal endothelial cells (SEC) and liver to APAP toxicity. Methods: The histopathological responses to APAP were evaluated in the livers of mice gavaged with APAP alone, following a single, week-end type ethanol binge (4 g/kg every 12 h X 5 doses) or three weekly binges. Results: Six hours after APAP, 600 mg/kg elicited severe centrilobular necrosis together with hemorrhagic congestion and infiltration of erythrocytes into the Space of Disse through large gaps that had formed in SEC. There was no evidence of parenchymal injury at 2 h, but gaps already were formed through the cytoplasm of the SEC by coalescence of fenestrae. A single binge followed by 300 mg/kg APAP elicited SEC and parenchymal injury equivalent to 600 mg/kg APAP alone at 2 and 6 h. The responses were exacerbated following three binges. Lower glutathione levels in the liver were shown in ethanol-binged animals. Conclusions: Ethanol binging increases APAP hepatotoxicity. SEC are an early target for APAP-induced injury and ethanol hinging enhances the SEC injury prior to evidence of parenchymal cell injury. (c) 2004 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available