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The effect of hypoxia on caspase-1,-8, and -9 mRNA expression and caspase -3/-7 activity levels. Expression levels of (A) caspase-1, (B) caspase-8, (C) caspase-9 normalized to U6 in NB7 cells subjected to 24 h normoxia or 24 h hypoxia (1% O2). (D) Caspase-3/-7 activity levels in NB7 cells subjected to 24 h normoxia or 24 h hypoxia (1% O2). Bars represent mean ± SEM, *p < 0.05, **p < 0.01.
