Cell viability restoration by DMTU and NAC in human lung cancer cells-A549 receiving the exposure of TiO₂-NPs or MWCNTs.

<p>(<b>a</b>) In short term group, cells were pre-treated with either of DMTU or NAC for 30 minutes followed by exposure of TiO₂-NPs (10 & 50 µg/ml) for 24 h. In long term group, cells were receiving a co-exposure (24 h) of DMTU/NAC and TiO₂-NPs (10 & 50 µg/ml). Cells were then analyzed for DMTU/NAC mediated restoration in the cell viability reduced due to TiO₂-NPs exposure. All values are mean±S.E. of 3 experiments. ^**P<0.01 (unexposed control Vs TiO₂-NPs exposure). ##P<0.01 (TiO₂-NPs exposure Vs DMTU/NAC treatment). (<b>b</b>) In short term group, cells were pre-treated with either of DMTU or NAC for 30 minutes followed by exposure of MWCNTs (10 & 50 µg/ml) for 24 h. In long term group, cells were receiving a co-exposure (24 h) of DMTU/NAC and MWCNTs (10 & 50 µg/ml). Cells were then analyzed for DMTU/NAC mediated restoration in the cell viability reduced due to MWCNTs exposure. All values are mean ± S.E. of 3 experiments. ^**P<0.01 (unexposed control Vs MWCNTs exposure). ##P<0.01 (MWCNTs exposure Vs DMTU/NAC treatment).