Women's Health Weekly
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Breast Cancer Risk Factors
Endogenous or exogenous progesterone does not exacerbate breast cancer risk
February 23rd, 2006
Endogenous or exogenous progesterone does not appear to exacerbate breast cancer risk. According to a report from Italy, "In the last two decades the prevailing opinion, supported by the 'estrogen augmented by progesterone' hypothesis, has been that progesterone contributes to the development of breast cancer (BC). Support for this opinion was provided by the finding that some synthetic progestins, when added to estrogen in hormone replacement therapy (HRT) for menopausal complaints, increase the BC risk more than estrogen alone." "However, recent findings suggest that both the production of progesterone during pregnancy and the progesterone...
Source: Women's Health Weekly (2006-02-23)
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