No evidence of oxidative stress was observed in liver after arousal. Level of protein carbonyls in liver from animals treated with AO prior to arousal was 1060± 73 nmol/g wet mass and was not significantly different from late arousal (laAGS) animals treated with saline prior to arousal (p>0.20, t-test, n=5). Similarly, levels of TBARS in animals treated with AO prior to arousal was 14.4±2.1 nmol/g wet mass and was not significantly different from laAGS (p>0.68, t-test, n=5).