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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Effectiveness of methyrapone in the treatment of acetaminophen toxicity in mice.

Metyrapone tartrate, 400 mg/kg i.p. raised the LD50 for acetaminophen from 340 mg/kg i.p. to 540 mg/kg i.p. in fasting male Swiss white mice. The minimum protective dose of metyrapone was 200 mg/kg. Metyrapone was effective in preventing death when given up to 2 h after acetaminophen administration. The LD50 for metyrapone tartrate was 760 mg/kg i.p. Metyrapone decreased or prevented acetaminophen induced hepatic damage measured either by histology or plasma glutamate pyruvate transaminase activity. Metyrapone tartrate, 400 mg/kg i.p., inhibited the severe liver glutathione depletion seen with acetaminophen alone. It is proposed that metyrapone protects mice from acetaminophen induced liver toxicity and death by inhibiting the oxidation of acetaminophen to a toxic intermediate.[1]

References

  1. Effectiveness of methyrapone in the treatment of acetaminophen toxicity in mice. Nelson, E.B., Montes, M., Goldstein, M. Toxicology (1980) [Pubmed]
 
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