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Dec 12th, 2006, 05:22 PM
For one, estrogenic compunds can have anti-estrogenic endocrine properties, due to the fact that while they might bind to estrogen receptors, they do not necessarily trigger gene activation. This keeps active estrogen from binding to these cells. Even putting aside the question of inactivity, the very most active phytoestrogens are only about a hundreth as potent as endogenous estrogens, again serving to block more potent estrogens. Phytoestrogens have also been shown to have an indirect limiting effect on levels of estrogen synthase, though the mechanism isn't well studied. Keep in mind that estrogens are tissue-specific, there's no evidence that phytoestrogens bind to reproductive tissues in humans, (in rhesus monkeys, they don't) and this article starts to resemble a heapful of bullshit.
I like how the chemical industry is given a free pass, as DDT and its breakdown chemicals (which are still prevalent in the environment), the shit they use in place of DDT, scent agents in your soap, plasticizers in kid's vinyl toys and food containers, the bisphenol a (originally synthesized as a synthetic estrogen) in polycarbonate bottles among other things, residual chemicals in teflon and stain-resistant products, and hormones administered to corn and livestock, are all estrogen-mimicking and proven endocrine disruptors.
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