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. 2018 Apr 7;19(4):1107. doi: 10.3390/ijms19041107

Figure 3.

Figure 3

Toxic effects of 160 µM 4 min MB and 8 min laser exposure on Detroit 562 cells. Laser exposure alone ensured 95.8% ± 2.2% cell viability, which was not significantly different from the control (p = 0.76 with Mann Whitney test); 160 µM 4 min MB ensured 46.1% ± 0.9% cell viability, which was significantly different from the control (****: p < 10−4 with Mann Whitney test), the combined MB + 660 nm laser exposure allowed 4.9% ± 0.5% cell viability, which was significantly different from the MB exposure and from the 660 nm laser exposure alone (****: p < 10−4 with Mann Whitney test).