Figure 7.

(a) In the control group, the mitochondria cristae was narrow and slender, and the density of some mitochondria matrix was slightly decreased; (b) mitochondria in the TNF-α group showed the shape became longer, the number increased, and the density of membrane increased; (c) in the fer-1 group, there were voids in the mitochondrion, but the mitochondrion shape became shorter, and the gap became wider, and part of the cristae was vesicular; (d) cavernous structure and membrane dense agglutination were shown in mitochondria of erastin group. The magnification of the above images is 20,000.