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Study: Hormone Treatments Boost Breast Cancer Risks

Posted on Oct 19, 2010
Flickr / Nesbitt_Photo (CC-BY-SA)

A ribbon of balloons commemorates breast cancer awareness month—that would be October—in this photo taken in New Hampshire in 2008.

A newly released medical study might cause women to reconsider going the hormonal replacement route in light of the potential risks: The study, published in the Journal of the American Medical Association, suggests that women who take estrogen and progesterone put themselves at higher risk of dying from breast cancer.  —KA


And it contradicts prior studies that suggest women taking the drugs had less aggressive, easier-to-treat breast cancers.

“As opposed to the prevailing thought of two years ago, that cancers associated with estrogen plus progesterone would be favorable and not much of a problem, we are actually showing they are associated with an increased risk of death from breast cancer,” Dr. Rowan Chlebowski of the Los Angeles Biomedical Research Institute, who led the study, said in a telephone interview.

The findings include 11 years of follow-up from the Women’s Health Initiative study, which in 2002 found women who took estrogen plus progesterone for five years had higher rates of ovarian cancer, breast cancer, strokes and other health problems.

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By Green Smoke Reviews, January 2, 2012 at 9:20 pm Link to this comment

Cancer is a scary thing. I have quit smoking using e-cigs, but I am still trying to find some supplements to take that will reverse the damage I have done to my lungs over the years. Does anyone know of any good ones?

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By jeffrey dach md, October 20, 2010 at 4:14 am Link to this comment
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The JAMA article revelation that Progestins cause breast cancer is “old news”.  The astounding thing is that none of the news articles mentions that Progestins are chemically altered forms of progesterone.  Progesterone is a naturally occuring human hormone, FDA approved for use as a drug.  and is readily available at pharmacies, and is known to prevent breast cancer.  Why not use Progesterone instead of the chemically altered “monster” progestins??  Millions of women have switched to natural progesterone.

You are probably wondering why do we use the word, “bioidentical”?  That’s an excellent question.  I can remember back when I was in first year medical school learning biochemistry at the University of Illinois in Chicago.  Our class used Lehninger’s classic textbook of biochemistry.  Lehninger never used the word, bio-identical hormones, because all hormones are by definition, bioidentical hormones.  They simply used the word, “hormone”.  Using a word like “bioidentical” was simply redundant and unnecessary for a biochemistry textbook, as it should be today.

Why are the smart women switching to bioidentical hormones? 
Bioidentical hormones are safer and more effective than chemically altered synthetic hormones.

To read more:

jeffrey dach md

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