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Activity of caspase-3 in human lymphocytes following PFOS treatment. The effect of PFOS on activity of caspase-3 in cultured human lymphocytes. Caspase-3 activity was assessed after treatment of human lymphocytes with IC50 (150 µM) of PFOS for 6 and 12 h. PFOS (150 µM), significantly (P < 0.05) increased activity of caspase-3 in human lymphocytes after 12 h incubation in comparison with control. *P < 00.05, **P < 0.01 and ***P < 0.001.
