Cited by 218Drug-Induced Hepatotoxicity and ProtectionLiver physiology and pathologyImmunotoxicology and immune responses

Nitrotyrosine-protein adducts in hepatic centrilobular areas following toxic doses of acetaminophen in mice

Hinson, Jack A., Pike, Sherryll L., Pumford, Neil R., Mayeux, Philip R.·1998·Chemical Research in Toxicology

Abstract

Treatment of mice with a toxic dose of acetaminophen (300 mg/kg, ip) significantly increased hepatotoxicity at 4 h, as evidenced by histological necrosis in the centrilobular areas of the liver, and increased serum levels of alanine aminotransferase (ALT) (from 8 +/- 1 IU/L in saline-treated mice to 3226 +/- 892 IU/L in the acetaminophen-treated mice). Serum levels of nitrate plus nitrite (a marker of nitric oxide synthesis) were also increased from 62 +/- 8 microM in saline-treated mice to 110 +/- 14 microM in acetaminophen-treated mice (P < 0.05). Regression analysis of serum ALT levels to serum nitrate plus nitrite levels in individual mice revealed a positive, linear relationship between serum ALT levels and serum nitrate plus nitrite levels with a correlation coefficient of 0.9 (P < 0.05). The y intercept value (nitrate plus nitrite level) was 63 +/- 15 microM. Immunohistochemical analysis of liver sections from acetaminophen-intoxicated mice using an anti-3-nitrotyrosine antibody indicated tyrosine nitration in the proteins of the centrilobular cells. Tyrosine nitration has been shown to occur by peroxynitrite, a reactive intermediate formed by an extremely rapid reaction of nitric oxide and superoxide and a species which also has hydroxyl radical-like activity. Analysis of liver sections using an anti-acetaminophen antiserum indicated the centrilobular cells also contained acetaminophen-protein adducts, a reaction of the metabolite N-acetyl-p-benzoquinone imine with cysteine residues on proteins. These data are consistent with acetaminophen metabolic activation leading to increased synthesis of nitric oxide and superoxide and to peroxynitrite as an important intermediate in the toxicity.

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Crossref · 10.1021/tx9800349

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Authors
Hinson, J. A., Pike, S. L., Pumford, N. R., & Mayeux, P. R.
Affiliations
  • University of Arkansas Medical Center (US)
  • University of Arkansas for Medical Sciences (US)
Corresponding author
Hinson, Jack A.
Venue
Chemical Research in Toxicology
Published
1998-05-23
Volume
11
Issue
6
Pages
604-607
ISSN
  • 0893-228X (ISSN-L)
  • 1520-5010
OpenAlex
W2055420058
Cited by
218
References
6
Citations by year
2026: 1 · 2025: 5 · 2024: 5 · 2023: 3 · 2022: 8 · 2021: 4 · 2020: 7 · 2019: 9 · 2018: 10 · 2017: 8 · 2016: 9 · 2015: 13 · 2014: 16 · 2013: 12 · 2012: 8
FWCI
5.80
Type
journal article
Language
en
Open access
closed
Locations
  • Chemical Research in Toxicology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01gm048749-04)
  • National Institute of General Medical Sciences (GM-48749)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK44716)
Topics
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Drug-Induced Hepatotoxicity and Protection
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotoxicology and immune responses
Keywords
acetaminophen hepatotoxicity, nitrotyrosine, protein adducts, peroxynitrite, nitric oxide, superoxide, N-acetyl-p-benzoquinone imine, centrilobular necrosis, alanine aminotransferase, metabolic activation, mice
MeSH terms
Acetaminophen, Alanine Transaminase, Animals, Biotransformation, Liver, Male, Nitrates, Nitric Oxide, Proteins, Tyrosine, Analgesics, Non-Narcotic, Mice

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