These data indicate a direct action of estrogen on oviduct tissue to promote a rapid increase in the activity of a specific enzyme and represent the first example of a completely in vitro enzyme response to estrogen. (science.sciencemag.org)
Ovarian Actions of Estrogen Receptor - β: An Update Ann E. Drummond, Ph.D. 1 Peter J. Fuller, B.Med.Sci., M.B.B.S., Ph.D., F.R.A.C.P. 1 1Prince Henry's Institute of Medical Research, Clayton, Victoria, Australia (bioidenticalhormones101.com)
Soy foods contain isoflavones, compounds that in some ways mimic the action of estrogen, and high levels of estrogen spur the growth of some breast cancers. (aicr.org)