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. 2021 Apr 24;22(9):4454. doi: 10.3390/ijms22094454

Figure 8.

Figure 8

Effect of tested nanohydroxyapatites (nHAp: Li+ and nHAp: Li+/Eu3+) on the SH-SY5Y (a,c) and PC12 (b,d) cells after mechanical damage: (a,b) DCF-DA assay; (c,d) Griess assay; Control (the negative control)—cell culture incubated without nanohydroxyapatites and without mechanical damage; Cp (the positive control)—cell culture after mechanical damage but without tested compounds; * p < 0.05, ** p < 0.01—significant difference compared to the negative control; # p < 0.05, ## p < 0.01—significant difference compared to the positive control.