Like breast cancer, very little real progress has been made in the
treatment of prostate enlargement and prostate cancer. Yes, there are many
new types of treatments available, but aside from surgery to remove a
cancer that hasn’t metastasized yet, not one treatment has been
convincingly shown to significantly prolong life or reduce the numbers of
men who are dying of prostate cancer. In fact, the Journal of the American
Medical Association (JAMA) of June 28, 2000, carried an article comparing
treatment recommendations by radiation oncologists and urologists for men
with moderately well differentiated, localized prostate cancer and greater
than a 10-year life expectancy based on age. In such cases, 92 percent of
urologists recommended radical prostatectomy (removal or the prostate
gland), whereas 72 percent of radiation oncologists recommended radiation
treatments. An accompanying editorial points out that the treatment advice
is determined by the services the doctor provides rather than by any
clear-cut evidence of the superiority of either treatment, or even whether
or not either treatment is any better than watchful waiting.
The PSA Count
One of the biggest areas of misunderstanding in prostate cancer has
been the PSA count. Prostate specific antigen (PSA) is produced within the
prostate gland and within breast tissue. (Therefore the phrase PSA is not
correct, since it is not specific to the prostate.) The function of PSA is
finally becoming clarified – when abnormal crowding of normal cells in the
prostate occurs, the cells produce more PSA which inhibits angiogenesis of
its neighboring cells. Angiogenesis is the growth of blood vessels leading
to a cancer tumor. Think of it as developing supply lines to feed an army.
Since cancer cells grow more rapidly than normal cells, they tend to crowd
against normal cells. One of the hallmarks of cancer cells is that they
will induce angiogenesis that will increase the flow of blood to them. The
anti-angiogenesis function of PSA is a defense against abnormally grwoig
cells in the prostate. Firm massage of normal prostate cells will increase
PSA levels in the prostate. Thus, PSA is a marker for increased crowding
of normal prostate cells.
Unfortunately, conventional medicine uses PSA levels as a marker for
prostate cancer. However, most “occult” prostate cancer occurs without
elevating the PSA level. Some people even think that PSA elevation is bad
and should be reduced. An example is the company that produced a drug
called PCSpes which inhibits PSA production and causes breast development.
In the past, I have challenged that company to produce evidence that using
the drug will lower the mortality or extend the survival of men using the
drug. No such evidence exists, to my knowledge. This is an example of
blaming the messenger rather than understanding the message. Recently
PCSpes, supposedly and herbal product, was found to contain a mixture of
pharmaceutical drugs and was taken off the market.
Conventional doctors often use PSA levels to determine treatment
options. The facts are that prostate cancer patients in countries who have
abandoned PSA tests have the same or better survival rates as countries
that use PSA tests. In Sweden, for example,
Physicians rarely screen for prostate cancer or use radical therapies,
choosing watchful waiting instead. Despite this, mortality rates for
prostate cancer have declined in Sweden. In the U.K, prostate cancer
mortality rates are similar to the U.S., even though PSA screening is not
routinely performed. In older men, when most prostate cancer occurs, the
cancer is slow-growing and early intervention may be of little
consequence. An interesting incidence (equivalent to PSA screening) and
subsequent changes in mortality in regions using common treatment
recommendations. They found no association between the intensity of PSA
screening and subsequent decreases in prostate cancer mortality.
Further, good references show that men early in the course of their
prostate cancer generally have low testosterone levels and little or no
elevation of PSA.
As men age, their testosterone and progesterone levels fall. Theses are
the two hormones known to be anabolic – meaning that they produce energy,
rather than using up energy, such as estrogen and insulin do. With the
fall of testosterone and progesterone, cellular energy wanes. Only the
cancer cell, with its ability to create angiogenesis, retains its high
energy. When a testosterone-deficient man has his testosterone restored,
normal cells then have more energy and, thus, can produce more PSA. This
is why PSA tends to rise a bit when testosterone is restored. The PSA is a
defense factor and the increased PSA inhibits angiogenesis of the cancer
cells. If one’s PSA rises a bit after the testosterone is brought up to
normal physiological levels of a younger man, it is not a sign that the
cancer is growing, but instead, is a sign that the normal cells have becoe
stronger in fighting against the cancer cells.
Maintaining good levels of both progesterone and testosterone should be
the goal of men for preventing and for treating prostate cancer.