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- W4385514351 abstract "Oltipraz (OPZ) is a synthetic dithiolethione with potential as a cancer chemopreventive agent, which can work by inducing detoxification enzymes. OPZ is an activator of nuclear factor erythroid 2-related factor 2 (Nrf2), suggesting its involvement in enzyme induction and possible protection against drug-induced liver injury. In this study, we present OPZ-mediated protection of mice against acetaminophen (APAP)-induced liver injury and discuss its possible contributing factors. Overnight-fasted male CD-1 mice were administered APAP intraperitoneally, and some mice were administered OPZ 16 h before APAP. Hepatotoxicity was assessed by measuring serum alanine aminotransferase leakage and histopathological evaluation. The hepatic mRNA expressions of CYP2E1, glutamate cysteine ligase (GCL), and NAD(P)H:quinone oxidoreductase (NQO1) were measured by real-time reverse-transcription polymerase chain reaction. OPZ protected mice from APAP-induced liver injury in a dose-dependent manner, but did not alter hepatic glutathione (GSH) content or GCL expression in control mice, indicating that its hepatoprotective effect is not due to changes in basal GSH levels. OPZ did not affect CYP2E1 expression or APAP-induced early GSH depletion, suggesting it does not inhibit the metabolic activation of APAP to produce N-acetyl-p-benzoquinone imine. In contrast, after GSH depletion, OPZ accelerated hepatic GSH recovery. APAP significantly increased GCL expression during liver injury, but OPZ treatment only led to additional NQO1 expression. This suggests that NQO1 is responsible for the enhanced GSH recovery and protection against APAP-induced liver injury seen in OPZ-treated mice. In summary, OPZ protects against APAP-induced liver injury by inducing NQO1 expression and resulting in improved GSH recovery." @default.
- W4385514351 created "2023-08-04" @default.
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- W4385514351 date "2023-08-03" @default.
- W4385514351 modified "2023-09-27" @default.
- W4385514351 title "Efficacy of oltipraz in preventing acetaminophen-induced liver injury in mice" @default.
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- W4385514351 doi "https://doi.org/10.1007/s00210-023-02649-5" @default.
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