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Photomicrographs showing alterations in the hepatic nuclear factor kappa B (NF-κB) expression following lead acetate (PbAc, 20 mg/kg, i.p.) and/or luteolin (LUT, 50 mg/kg, orally) exposure in male rats. (A) Control group; (B) LUT administered group; (C) PbAc treated group; (D) LUT+PbAc-treated group; scale bar 80 um.
