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Fig. 3 | BMC Neuroscience

Fig. 3

From: Norepinephrine protects against cochlear outer hair cell damage and noise-induced hearing loss via α2A-adrenergic receptor

Fig. 3

HEI-OC1 cell survival after H2O2 exposure and NE treatment. a Cell images were captured by holographic microscopy. The morphological changes are displayed over time after treatment with H2O2. Scale bar = 100 mm, n = 3. b Viability of HEI-OC1 cells at 1 and 5 h after stimulation with 0, 0.2, 0.4 and 0.8 mM of H2O2. c Viability of HEI-OC1 cells at 5 h after stimulation with 0, 0.1, 1, 5, 10 and 50 mM of NE. d Effects of NE on HEI-OC1 cell survival after H2O2 exposure. e Quantification of cell apoptosis for different treatments. *p < 0.05, **p < 0.001, ****p < 0.0001

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