Figure 1.

Effect of parabens and oestradiol on growth of MCF7 human breast cancer cells. Effect of five parabens on growth of MCF7 human breast cancer cells individually at no-observed-effect concentration (NOEC) values, of all five parabens mixed together at NOEC values, of 10^-11 M oestradiol (E2), or of 10^-11 M E2 together with all five parabens at their NOEC values. Cells were grown and cell growth is presented as published previously [35-37] (AK Charles, PD Darbre, University of Reading, unpublished data).