- Significant increase of 8-hydroxydeoxyguanosine in liver DNA of rats following short-term exposure to the peroxisome proliferators di(2-ethylhexyl)phthalate and di(2-ethylhexyl)adipate. Takagi, A., Sai, K., Umemura, T., Hasegawa, R., Kurokawa, Y. Jpn. J. Cancer Res. (1990)