Amelioration of Hepatocellular Integrity and Inhibition of Sinusoidal Oxidative Stress by N-Acetylcysteine Pretreatment in Cold Ischemia-Reperf usion Injury of Rat Liver

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Abstract
Further improvements of donor liver preservation are still required in liver transplantation. In the present study, we investigated whether intraportal injection of N-acetylcysteine (NAC) 15 min before flush-out of UW solution (NAC pretreatment) improves liver dysfunction after cold preservation or has a protective effect on sinusoidal oxidative stress. The effect of NAC pretreatment was examined using an isolated perfused rat liver model. The NAC pretreatment significantly reduced sinusoidal oxidative stress relative to a control dextrose 5% injection. Under a glutathione-depleted condition produced by L-buthionine-[S-R]-sulfoximine, the NAC pretreatment also significantly reduced hepatocellular as well as sinusoidal oxidative stress, resulting in improvement of hepatocelllar integrity relative to a control dextrose 5% injection.

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