Some bits on sulforaphane:
http://her2support.org/vbulletin/sho...849#post226849
some of which suggests degradation of ER receptors.
Despite potential cancer stem cell benefit, got a little concerned about the possibility of enhancing her2 and halted the Jarrow Broccomax supplement (broccoli seed extract). Might be a great thing..just that clarifying studies haven't been funded. Crapshoot indeed.
In the broccoli
link above, didn't see any references noted..at least not in a way you could easily find them.