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Effect of SP extract on the antioxidant enzymes activity of GPX (A), SOD (B) and CAT (C) in hepatotoxicity induced by APAP. C: control; APAP: acetaminophen; APAP + SP: acetaminophen and 500 mg/kg of ethanolic extract of Stachys pilifera; APAP + SM: acetaminophen and 100 mg/kg of Silymarin. aP < 0 05 versus control group and bP < 0 05 versus APAP group.
