Figure 4.

Effects of glycyrrhizin on retinal apoptosis after sodium iodate (SI) treatment in vivo. A, Terminal dUTP nick end‐labelling staining of retina after 28 d of SI treatment. a, sham; b, retina treated with SI; c, retina treated with SI plus glycyrrhizin (SI + GA). Apoptotic cell nuclei were stained brown. B, Both SI and SI + GA significantly increased apoptosis of retina, compared with normal control (*P < 0.01), however, glycyrrhizin significantly decreased the apoptosis of retina treated with SI, compared with SI control (^# P < 0.01)