Figure 6From: Molecular mechanism of DNA damage induced by titanium dioxide nanoparticles in toll-like receptor 3 or 4 expressing human hepatocarcinoma cell lines Expression of DNA damage marker mRNAs in TiO 2 NP-exposed HepG2 cells. Cells were exposed to 10 μg/ml TiO2 NPs for 48 h. Results are shown as the mean ± SD, n ≥3 for each marker, (*P <0.05).Back to article page