GL blocks TUNEL-positive staining at the early stage after APAP challenge. TUNEL-staining analysis of paraffin-embedded livers. Original magnification, 20×. Control, saline-treated mice; GL, only GL 100 mg/kg-treated mice; APAP, saline/APAP-treated mice; GL + APAP, GL 100 mg/kg/APAP-treated mice.