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. 2016 May 20;6:26449. doi: 10.1038/srep26449

Figure 1. The relative rate of apoptosis in NPCs subjected to different loading durations and incubation durations post-loading was determined using the TUNEL assay.

Figure 1

(a) In the positive control, apoptotic cells were stained with fluorescein and therefore appeared green in colour. (b–i) The rate of apoptosis after static loading with 70% strain with different loading and incubation durations was assessed. (m–o) Bar charts to show the mean ± 2SE level of apoptosis (indicated by % TUNEL-positive cells/DAPI-positive cells). Asterisks indicate statistically significant results (p < 0.05).