WOMEN'S HEALTH
Supplementation for Breast Cancer Treatment
Nutritional Supplementation
Antioxidant
Nutrients
Antioxidant nutrients help support the immune system, especially
when the body is under stress. Although the following research highlights
individual antioxidant nutrients, it should be stressed that it is not
advisable to take large amounts of one or two antioxidants while excluding
the rest. For optimal protection, a nutritional supplement programme should
include multiple antioxidants. The primary antioxidants are vitamin
A, vitamin
C, vitamin
E, beta-carotene,
selenium,
coenzyme
Q10, and lipoic acid.
Note: Women diagnosed with breast cancer and men with prostate cancer
should not take DHEA, unless under strict medical supervision.
Vitamin
E
Vitamin E, although best known as an antioxidant, has been reported
to have several functions in addition to its antioxidant activity. Recent
studies indicate that vitamin E may inhibit smooth muscle cell and also
cancer cell growth. In both breast and prostate cell cancer lines, analysis
revealed extensive fragmentation, indicating death of all cell lines
supplemented with vitamin E. These studies give evidence of a general
inhibition of cell growth by dl-alpha-tocopherol, with breast and prostate
cancer cells.
Selenium
It has been suggested that selenium levels in the blood might be used
as a non-invasive diagnostic parameter in clinical assessment of malignant
breast disease. The results of one study revealed that women with breast
cancer had blood selenium levels ranging from 41-58mcg/l, whereas the
selenium levels in healthy women subjects ranged from 73-89mcg/l.
Coenzyme
Q10 (CO-Q10)
Coenzyme Q10 (CoQ10) was part of the therapy in the previously mentioned
nutritional/antioxidant protocol with women who were "high-risk" breast
cancer patients. Six of the 32 women in that trial reported partial
tumor regression. In one of those six women, the dosage of CoQ10 was
increased to 390mg. In one month, her tumor was no longer palpable and
in another month, mammography confirmed the absence of tumor.
Melatonin
Melatonin is a hormone that is secreted from the pineal gland in the
brain. Melatonin is the "sleep trigger"- the substance that regulates
the sleep/wake cycle. However, recent research also indicates that melatonin
is also an antioxidant. Studies report that melatonin is capable of
inhibiting the in vitro growth of breast cancer cells, suggesting that
it may be useful in the prevention of breast cancer.
Soy
Isoflavones
In cultures where soy products are consumed in abundance, women's health
problems, certain cancers, and cardiovascular disease are reported to
be less prevalent. Consuming more soy products in the diet increases
the amount of phytoestrogens that you get, which act similar to the
natural estrogens found in the body. Soy isoflavones, such as genistein
and daidzein are rich in phytoestrogens and are thought to reduce the
symptoms of menopause, support healthy bone structure and decrease the
risk of certain cancers.
The soy isoflavone genistein has been shown to stimulate the growth
of a particular type of breast cancer in women that is dependent on
estrogen. Genistein has also been shown to cancel out the beneficial
effects of tamoxifen in women with certain estrogen positive breast
tumors. Therefore, women with estrogen positive breast cancer or who
are on tamoxifen should discuss the use of isoflavones with their healthcare
professional.
Flaxseed
Flaxseed is a good source of plant lignans, particularly secoisolariciresinol
and matairesinol, which are then converted to the lignans enterodiol,
enterolactone once inside the body. They are similar in structure to
sex hormones and thus behave similar to estrogen or possibly block the
effects of estrogen. This activity alters the breakdown of hormones
and thus possibly decreases any related cancer risk.
One study suggested that the reduced risk may result from changing
the breakdown of estrogen to 2-hydroxyestrogen and 16alpha-hydroxyestrone.
2-hydroxyestrogen may also have breast cancer protective effects due
to its slight estrogen effect and possible anti-estrogen activity. A
study involving more than 280 women noted a substantial reduction in
breast-cancer risk among women with a diet high in the lignan enterolactone.
Since increased concentrations of insulin-like growth factor I (IGF-I)
are associated with an increased risk of breast cancer, another possible
way in which flaxseed decreases the risk of breast cancer is by reducing
the amount of IGF-I in the blood. Other studies, mainly using animals
have demonstrated inhibited growth and delayed progression of breast
tumors.
Herbal Supplementation
Larch Arabinogalactan
Arabinogalactans are a class of long, densely branched polysaccharides.
Because of the immune-enhancing properties, larch arabinogalactan (LA)
is receiving increased attention as a potentially useful immune system
enhancer and addition to more traditional cancer treatment options.
LA is reported to enhance immunity by various methods, including stimulating
the activity of natural killer cells and inhibiting the spread of tumor
cells to the liver. Arabinogalactan is available in My
Defense, which is a comprehensive immune system booster.
Green Tea
Green tea reportedly has antioxidant properties and the ability to protect
against oxidative damage of red blood cells. Antioxidants protect cells
and tissues against oxidative damage and injury. Green tea's antioxidant
effects seem to be dependent upon the polyphenol (catechin) fraction.
It is important to note that the addition of milk to any tea may significantly
lower the antioxidant potential.
Investigators have reported that increased consumption of green tea
was associated with decreased numbers of axillary lymph node metastases
among pre-menopausal women with stage I and II breast cancer and with
increased expression of progesterone and estrogen receptors among postmenopausal
women. Claims have been made that increased consumption of green tea
prior to clinical cancer onset may be associated with improved prognosis
of stage I and II breast cancer. This association may be related to
a modifying effect of green tea on the clinical characteristics of the
cancer.
Diet and Lifestyle
The following lifestyle factors are important for women who want to
reduce their risk of developing breast cancer. However, this information
is also very important for women who have already been diagnosed with
breast cancer, because the factors discussed below can alter hormone
activity, boost the immune system, and increase women's chances for
successful remission and long-term survival.
Dietary factors affect a woman's risk of breast cancer. These include
the following: