Tada Oikawa S, Ichihara G, Fukatsu H, Shimanuki Y, Tanaka N, Watanabe E, et al. Titanium Dioxide Particle Type and Concentration Influence the Inflammatory Response in Caco-2 Cells. Int J Mol Sci. 2016;17:576 pubmed publisher
..Further studies are required to determine the in vivo relevance of these findings to avoid the hazards of ingested particles. ..