New research shows that there is more than one estrogen receptor. We're familiar with the estrogen alpha receptor. This is the one that can go bad and signal cells to multiply uncontrollably, resulting in breast or ovarian cancer. Now scientists have discovered estrogen receptor beta, that seems to put the brakes on cell growth. A team led by Heather Harris of Wyeth Research in Collegeville, PA, found that drugs that increase estrogen receptor beta decrease inflammation. Jan Ake Gustafsson has also been working with estrogen receptor beta in Sweden. Women taking aromatase inhibitors for breast cancer had a bad side effect - intense pain all over their bodies. That is because the aromatase inhibitors were stopping estrogen receptor beta along with alpha.
See www.sceincenews.org, Jan. 5, 2008 vol. 173, " A Different Side of Estrogen."
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