Title : Serum metabolomics reveals irreversible inhibition of fatty acid beta-oxidation through the suppression of PPARalpha activation as a contributing mechanism of acetaminophen-induced hepatotoxicity.

Pub. Date : 2009 Apr

PMID : 19256530






5 Functional Relationships(s)
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1 In this study, serum metabolomes of control and APAP-treated wild-type and Cyp2e1-null mice were examined by liquid chromatography-mass spectrometry (LC-MS) and multivariate data analysis. Acetaminophen cytochrome P450, family 2, subfamily e, polypeptide 1 Mus musculus
2 A time-course study further indicated that both wild-type and Cyp2e1-null mice had their serum acylcarnitine levels markedly elevated within the early hours of APAP treatment. Acetaminophen cytochrome P450, family 2, subfamily e, polypeptide 1 Mus musculus
3 The upregulation of PPARalpha activity following APAP treatment was transient in wild-type mice but was much more prolonged in Cyp2e1-null mice. Acetaminophen cytochrome P450, family 2, subfamily e, polypeptide 1 Mus musculus
4 Overall, serum metabolomics of APAP-induced hepatotoxicity revealed that the CYP2E1-mediated metabolic activation and oxidative stress following APAP treatment can cause irreversible inhibition of fatty acid oxidation, potentially through suppression of PPARalpha-regulated pathways. Acetaminophen cytochrome P450, family 2, subfamily e, polypeptide 1 Mus musculus
5 Overall, serum metabolomics of APAP-induced hepatotoxicity revealed that the CYP2E1-mediated metabolic activation and oxidative stress following APAP treatment can cause irreversible inhibition of fatty acid oxidation, potentially through suppression of PPARalpha-regulated pathways. Acetaminophen cytochrome P450, family 2, subfamily e, polypeptide 1 Mus musculus