Instead, we used the more conservative generalized linear model (Proc GLM; SAS Institute Inc.) to evaluate the effect of TCDD, DMBA, and diet on phenotypes (body weight, percent body fat, fasting blood glucose, branch elongation, fat pad length, number of terminal end buds, size of terminal end buds, and fold change) (Livak and Schmittgen 2001) of Cyp1a1, Cyp1a2, Cyp1b1, Areg,
Ereg, Egf, Rac1, Tgfb, Bax, Ccnd1, Mki67, Igf1, Fgf2, Ahr, Egfr, and Esr1 levels.