TNF and Alzheimer disease: The LPS‐treated AD‐MSCs with TiO2 and mono TiO2 nanoparticles significantly decreased the interleukins‐4, 6, 10, and TNF‐α in the genetic and protein levels (p > 0.05), while dual TiO2 nanoparticles high significantly decreased the interleukins‐4, 6, and TNF‐α in the genetic and protein levels (p > 0.01) compared to induced cells with LPS (Figure 8A–F).