Fig. 5
From: Assessment of nano-iron particles impact on the reproductive health of female Wistar rats
Immunohistochemistry comparing caspase-3 staining in ovarian tissue (n = 3 from each group). Control (A): negative expression of immune stain caspase-3 was observed. Magnetite-treated groups (B–D): positive expressions of immune stain caspase-3 were observed (black arrows). Many follicles (F) in various stages of development, corpus luteal (CL), and stroma (S)