Dr John Lee Advocated Progesterone
Dr John Lee, a rather amazing renegade Harvard educated doctor, internationally acknowledged as a pioneer and expert in the study and use of the hormone progesterone, and on the subject of hormone replacement therapy for women, absolutely hated tamoxifen, a well known breast cancer drug.
He stated “In my opinion, progesterone alone opposes the undesirable effects of estrogen very effectively, and if oncologists understood this they would be prescribing progesterone for their breast cancer patients instead of tamoxifen and Femara.“
Dr Lee was worried about the harmful side effects of tamoxifen and said that it doesn’t address the underlying issues of DNA damage and lack of progesterone, which he felt were some of the root causes of breast cancer. In 2002, Dr Lee co-wrote “What Your Doctor May Not Tell You About Breast Cancer – How Hormone Balance Can Help Save Your Life“, along with David Zava, Ph.D. and Virginia Hopkins.
Partly based on what I read in this book, I decided against Tamoxifen. I just wasn’t willing to risk the side effects.
Instead, Dr Lee advocated hormone balancing and treating imbalances with natural progesterone rather than synthetic estrogen (which you won’t be given anyway if you’ve had breast cancer).
An Interesting 2001 Study
There was an interesting article on Dr Lee’s website (johnleemd.com) where he discussed the results of a study done in 2001:
“The Fred Hutchinson Cancer Center released study results in the Journal of the National Cancer Institute (July 2001) showing that women taking tamoxifen for treatment of first breast cancer are more likely to develop estrogen receptor-negative tumors in the other breast. These tumors are particularly aggressive and difficult to treat with conventional medicine.
The study looked at 9,000 women who survived breast cancer, about half of whom were being treated with tamoxifen. Some 27 percent of the tamoxifen group had estrogen receptor-negative tumors in the other breast, while only 4 percent of the tamoxifen-free group developed estrogen-negative tumors.
It’s frustrating to me that this huge study didn’t look more closely at the relationship between progesterone receptors and tamoxifen. Estrogen and progesterone are dependent upon each other for keeping their respective receptors active. In other words, estrogen is needed to maintain progesterone receptors, and progesterone is needed to maintain estrogen receptors. Thus, a drug like tamoxifen that blocks estrogen would be likely to severely down-regulate progesterone receptors, which would in turn down-regulate estrogen receptors, which would of course create a hormone receptor-negative milieu in the breasts.
The researchers said that this study should not discourage women from using tamoxifen, but to me it’s just one more reason to run from it. Tamoxifen also increases the risk of uterine cancer, blood clots and eye problems, and its benefits don’t last beyond about three to five years.“
Dr Lee passed away in 2003 but his work lives on. From his website: “Dr. Lee s colleagues, family, and friends will carry on his legacy, as will the millions of others whose lives he touched over the years. We know that many of you will write, asking What can we do? The most meaningful way to remember John R. Lee, M.D. and carry on his work is to educate others, one-to-one, and give them the gift of optimal health, as he gave us.“
That’s what I’m doing here – my best to educate others.
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