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. 2019 Sep 17;20(18):4602. doi: 10.3390/ijms20184602

Figure 5.

Figure 5

Effects of antioxidants and 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) on the cytotoxicity of TPZ and 9,10-phenanthrene quinone in MH22a cells. 40 µM TPZ (1–4), 5.0 µM 9,10-phenanthrene quinone (5–8), additions: none (1,5), + 300 µM desferrioxamine (2,6), + 3.0 µM N,N’-diphenyl-p-phenylene diamine (DPPD) (3,7), + 20 µM BCNU (4,8). Additions of DPPD, desferrioxamine and BCNU did not affect the cell viability. n = 3, p < 0.02 for 1 against 2–4, and for 5 against 6–8 (*). Cell viability in control experiments, 98.5 ± 1.0%.