Fig. 7
From: Glycyl-alanyl-histidine protects PC12 cells against hydrogen peroxide toxicity
GAH decreases the number of TUNEL-positive PC12 cells. PC12 cells were exposed to 500 μM hydrogen peroxide for 24 h. The TUNEL assay was performed using the Click-iT TUNEL Alexa Fluor 594 Imaging Assay Kit. The TUNEL signal is shown in red (top of figure, bottom panels) and Hoechst 33,342 nuclear staining is shown in blue (top of figure, top panels). The upper panels are representative images of TUNEL staining. All data are shown as mean ± SE of three independent experiments (p < 0.01)