slightly significantp = 0.01
The results in Figures 1a,b , corresponding to the findings done by an automated LUNA cell counter show that disperse dyes Brown 1, Blue 124, Blue 1 and Tartrazine had a very significant ( p < 0.0001) and a slightly significant ( p = 0.01) reduction of viability of MPEK-BL6 and IPEC-J2 cells when exposed to the high and low concentrations of these dyes, respectively.