Evidence for the Hormone Dependency of Hepatic Hyperplastic Nodules: Inhibition of Malignant Transformation After Exogenous 17β‐Estradiol and Tamoxifen
Shaindel Y. Mishkin, Emmanuel Farber, Ru Kun Ho, Shree Mulay, Seymour Mishkin – 1 January 1983 – Hepatic hyperplastic nodules (HHNs) in rats were studied as an experimental prototype of oral contraceptive‐related hepatic tumors. We have found cytoplasmic estrogen receptors in HHNs produced by acetylaminofluorene (AAF) (four cycles of 0.02% in diet). Rats with AAF‐induced HHNs were randomized into four groups: (i) AAF‐treated control; (ii) estrogen alone (estradiol‐17β); (iii) tamoxifen alone, and (iv) estrogen + tamoxifen.