19.12.15: health/hormonics/cancer#prostate/estrogen:
.
Dr.Lee 2002 noted that prostate cancer is
one of the many diseases that can be
associated with estrogen dominance,
where there is too much estrogen
relative to progesterone.
. this is supported by a 2011 study
[
Expert Rev Endocrinol Metab. 2011:
Estrogen action and prostate cancer.]
. estradiol-17β has been classified as a carcinogen
by the International Agency for Research on Cancer [9–11],
primarily based on its association with
endometrial and breast carcinoma in women [12–15].
. young men have low estrogen,
moderate progesterone,
and 4 times as much testosterone (T);
but when aging they get more estrogenic activity
and the combination of T and estrogen
is what dramatically increases the risk
of prostate cancer.
At least in rats, testosterone alone
is necessary, but not sufficient,
for the development of prostate cancer.
It is only with the addition of estrogen
that cancer can be reliably induced.