Hepatic histopathology indicating the steatosis and the protective role of gemfibrozil and fenofibrate in Ppara-null mice. (a, c, e, g) Histopathology image in the Con, MFD, MFD-G and MFD-F in the wild-type mice. (b, d, f, h) Histopathology image in the Con, MFD, MFD-G and MFD-F in the Ppara-null mice. The results were expressed as mean ± SD (n=5; *: compared with WT-Con or KO-Con respectively; ^: compared with WT-MFD or KO-MFD groups respectively)