Fig. 4From: Involvement of oxidative stress in tri-ortho–cresyl phosphate-induced autophagy of mouse Leydig TM3 cells in vitro Ultrastructural evidence of TOCP inducing autophagy in mouse Leydig TM3 cells. Mouse Leydig TM3 cells were treated with DMSO (a and b) or 0.5 mM TOCP for 48 h (c and d). Then, autophagic vacuoles in the cells were visualized by transmission electron microscopy (TEM), starvation-treated cells as positive control (e and f). The autophagic vacuoles are indicated by arrowsBack to article page