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  1. #1
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    Tamoxifen Blocks HCG Induced Leydig Cell Desensitization
    Posted by Nandi12 on cuttingedgemuscle


    Tamoxifen Blocks Human Chorionic Gonadotropin (HCG) Induced Leydig Cell Desensitization
    HCG induced testicular desensitization seems to be a hot topic. There are a number of studies showing that concomitant use of Nolvadex ameliorates this. The first abstract suggests that Human Chorionic Gonadotropin (HCG) at least partially blocks the conversion of 17 alpha-hydroxyprogesterone (17 OHP), a testosterone precursor, to testosterone. This effect is suppressed by Nolvadex.

    The second abstract seems to indicate that estrogen may not be the only culprit, since Nolvadex plus Human Chorionic Gonadotropin (HCG) does not increase T levels any more than Human Chorionic Gonadotropin (HCG) alone, even though the combination reduces desensitization.

    Since we are trying to avoid this desensitization so when we quit the Human Chorionic Gonadotropin (HCG) our testes respond to our endogenous LH, it makes sense to always use nolvadex with Human Chorionic Gonadotropin (HCG) to at least help the problem, if not solve it completely.


    J Clin Endocrinol Metab 1980 Nov;51(5):1026-9

    Tamoxifen suppresses gonadotropin-induced 17 alpha-hydroxyprogesterone accumulation in normal men.

    Smals AG, Pieters GF, Drayer JI, Boers GH, Benraad TJ, Kloppenborg PW.

    Intramuscular administration of 1500 IU hCG daily for 3 days induced a transient accumulation of 17 alpha-hydroxyprogesterone (17 OHP) relative to testosterone (T) in normal men, reaching its maximum 24 h after the first injection (17 OHP to T ratio, 1.7 +/- 0.3 times baseline; P < 0.01). Simultaneous administration of hCG and the estrogen antagonist tamoxifen (20 mg twice daily) almost completely abolished the hCG-induced steroidogenic block localized between 17 OHP and T (17 OHP to T ratio at 24 h, 1.1 +/- 0.1 times baseline; P < 0.01 vs. hCG alone). These data indirectly suggest that, in man, the hCG-induced steroidogenic lesion might be mediated through its estrogen-stimulating effect.



    Andrologia 1991 Mar-Apr;23(2):109-14

    Effect of an antiestrogen on the testicular response to acute and chronic administration of hCG in normal and hypogonadotropic hypogonadic men: tamoxifen and testicular response to hCG.

    Levalle OA, Suescun MO, Fiszlejder L, Aszpis S, Charreau E, Guitelman A, Calandra R.

    Division Endocrinologia, Hospital Carlos Durand, Instituto de Biologia y Medicina Experimental, Buenos Aires, Argentina.

    The effect of the antiestrogen tamoxifen (Tx) on the acute and chronic hCG administration was evaluated in patients with hypogonadotropic hypogonadism (HH) and in normal men. An hCG test (5000 IU hCG) was performed before, after two months of hCG administration (2000 IU hCG three times weekly) and after two months of hCG + Tx (2000 IU hCG three times weekly plus 20 mg/day of tamoxifen). Blood samples were obtained before and following 24 and 72 h of every test to determine T, E, 17OHP and SHBG. T increased only in HH with both treatments (X +/- SEM: Basal: 97.9 +/- 19.7; hCG: 237.7 +/- 43.2; hCG +/- Tx: 204.7 +/- 10.7 ng/100 ml). 17OHP rose with hCG alone, but not with hCG + Tx in both groups. E, SHBG and 17OHP/T ratio did not change after treatments. hCG tests: E increased 24 h following hCG administration in every test. The ratio 17OHP/T rose at 24 h in the first and second test but in the third test it did not change. These results support the role of E in the acute hCG-induced Leydig cell desensitization. However, the association of Tx does not improve T serum levels, suggesting that E might not be the unique factor involved in the mechanisms for testicular desensitization.

  2. #2
    Community Veteran JohnnyB's Avatar
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    Those are some high doses of Human Chorionic Gonadotropin (HCG) they used, it'd be nice if they'd do the same study with low doses of Human Chorionic Gonadotropin (HCG) to see the results

    JohnnyB

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    Perverted Old Man Spartie's Avatar
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    I have been using 40mg of Tamoxifen daily (gyno sensitive) along with 250 ius of Human Chorionic Gonadotropin (HCG) EOD this cycle and have been feeling GREAT! I have been on now for over 4 weeks of a 16 week cycle at high doses:

    Test Enan: 1+ Grams per week
    Deca: 600mg per week
    Anadrol: 100mg per day (6 weeks up front)
    Tren Ace: 75mg EOD (last 8 weeks)

    This is the first time I have combined both the Nolva and Human Chorionic Gonadotropin (HCG) throughout a cycle. I have been feeling quite well...no burn-out, no mood swings, testicles are normal size, energy is high, etc. I knew nothing about this study when I decided to add the two together, so thank you for posting!

  4. #4
    Community Veteran Mudge's Avatar
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    There are many reasons to avoid long term nolvadex useage.

    http://www.all-natural.com/tamox.html



    Tamoxifen
    A Major Medical Mistake?
    by Sherrill Sellman
    Extracted from Nexus Magazine, Volume 5, #4 (June - July 1998)
    Once praised for its benefits in preventing breast cancer recurrence, the lucrative pharmaceutical drug tamoxifen is now implicated in causing dangerous side-effects, including other types of cancers.

    In the early 1970's, a shameful chapter closed on the widespread use of a known carcinogenic and endocrine-disrupting drug called DES (diethylstilboestrol), the first synthetic, non-steroidal estrogen drug. Against the advice of its creator, Sir Charles Dodd, between four and six million American and European women and 10,000 Australian women innocently used DES for the prevention of miscarriage and pregnancy complications.

    In addition, DES became a popular though unproven drug for a variety of other conditions. It was used for the suppression of lactation, the treatment of acne, the treatment of certain types of breast and prostatic cancer, and as an inhibitor of growth in young girls, an estrogen replacement in menopause and a "morning after" pill.

    It would take 30 years to accept what laboratory tests had indicated as early as 1938 — that DES was a highly dangerous and harmful drug. It was reported that, 20 years after taking DES, mothers had a 40 to 50 per cent greater risk of breast cancer than non-exposed mothers. In addition, the children of DES mothers showed a high incidence of reproductive abnormalities, miscarriages, vaginal cancer, testicular cancer, sterility and immune dysfunction. In fact, it is feared that repercussions of this drug will be felt for generations to come.

    The irony of this entire debacle is that the medical establishment finally acknowledged that DES was useless in preventing miscarriages. Thus, DES, another disastrous experiment on women, was added to the long list of major medical blunders.

    Out of this early research, a new drug appeared on the horizon which would be soon be heralded as a shining star in the war against the growing epidemic of breast cancer. In the late 1960's the pharmaceutical industry developed a drug called "tamoxifen". As a synthetic, non-steroidal compound with hormone-like effects (many of which are poorly understood), tamoxifen has a similar structure to DES. In fact, it was observed that tamoxifen caused the same abnormal changes seen in cells of women taking estradiol and DES. (1) This similarity raised alarm bells for some.

    Pierre Blais, well known as a drug researcher who was ejected from Canada's health protection bureaucracy when he spoke out about silicone breast implants, describes the story of tamoxifen as "the story of modern drug design which produces garbage drugs". He says, "Good drug design ceased, unfortunately, in the 1930s." Tamoxifen, Blais asserts, "...is a garbage drug that made it to the top of the scrap heap. It is a DES in the making." (2)

    Blais's dire predictions were ignored with the promise of a potential drug treatment for breast cancer. Tamoxifen was first approved by the US Food and Drug Administration (FDA) for use as a birth-control pill; however, it proved to induce rather than inhibit ovulation. Although tamoxifen didn't work as a contraceptive, it was found to lower mammary cancer rates in animals. Animal studies showed that tamoxifen prevented estrogen from binding to receptor sites on breast tissue cells. Tamoxifen also reduced the incidence of breast cancer in rodents after administration of a breast-carcinogenic substance. This discovery provided the impetus to study its effects in treating human breast cancer.

    Estrogen is the common link between most breast cancer risk factors, i.e., genetic, reproductive, dietary, lifestyle and environmental. It both stimulates the division of breast cells (healthy as well as cancerous) and, especially in its 'bad' form, increases the risk of breast cancer. Thus, hormonal drugs such as tamoxifen that block the effects of estrogen on the breast were expected to reduce the risk of breast cancer recurring in women treated for breast cancer. (3)

    Tamoxifen acts as a weak estrogen by competing for estrogen receptors much as phyto-estrogens do. Like phyto-estrogens, tamoxifen has mild estrogenic properties but is considered an anti-estrogen since it inhibits the activity of regular estrogens. More accurately, tamoxifen is an estrogen-blocker. It fights breast cancer by competing with estrogen for space on estrogen receptors in the tumor tissue. Every tamoxifen molecule that hooks onto an estrogen receptor prevents an estrogen molecule from linking up at the same site. Without a steady supply of estrogen, cells in an estrogen-receptor-positive (ER+) tumor do not thrive and the tumor's ability to spread is reduced. (4)

    However, tamoxifen exhibited two conflicting characteristics. It could act either as an anti-estrogen or as an estrogen. Therefore, while tamoxifen is anti-estrogenic to the breast, it also acts as an estrogen to the uterus and, to a lesser extent, the heart, blood vessels and bone. So, although it initially showed the tendency to counter breast cancer recurrence, it would soon be revealed that it also promoted particularly aggressive uterine and liver cancers, caused fatal blood clots and interfered with many other functions.

    Doctors, however, were quick to jump on the tamoxifen bandwagon, turning a blind eye to its more injurious tendencies. Starting in the 1970's oncologists began using tamoxifen to treat women with cancer, often in combination with other drugs, radiation or surgery such as lumpectomy and mastectomy, with modest success. Like DES, tamoxifen's benefits were then extended for use as a preventive against osteoporosis and heart disease.

    Today, doctors are treating about one million American breast cancer patients with tamoxifen, about 20 per cent of them for more than five years. As studies published in the New England Journal of Medicine in 1989 and the Journal of the National Cancer Institute in 1992 showed, women with breast cancer who took tamoxifen reduced their chances of developing cancer in the other breast (contralateral cancer) by about 30 to 50 per cent. (3) These findings would later be challenged.

    Tamoxifen is now recommended for all pre-menopausal women with hormone-positive cancers, as well as for most postmenopausal women with breast cancer and/or a growing number of women with hormone-negative cancers. Tamoxifen is currently used by more women with breast cancer than any other drug. (6)

    Tamoxifen (brand name Nolvadex) is now the most widely prescribed cancer medication in the world. It generated revenues of US $265 million in 1992. By 1995, worldwide sales of Nolvadex reached $400 million. (7) And at AUD $90 for one month's supply, it doesn't come cheap (the Australian Pharmaceutical Benefits Scheme covers $70).

    Tamoxifen was developed by UK-based Imperial Chemical Industries (ICI), one of the world's largest multinational chemical corporations. Zeneca, an ICI subsidiary, is responsible for manufacturing and marketing the hormone and is now the world's largest cancer-drug company.

    It is no surprise that ICI's profits come from playing both sides of the cancer industry. ICI's agrochemical division, which includes Zeneca, manufactures chlorinated and other industrial chemicals including herbicides. All are poisonous, and many are known endocrine-disrupters that have been incriminated as causes of breast cancer. ICI's profits swell by manufacturing chemicals that on the one hand cause breast cancer, and on the other hand reputedly cure breast cancer.


    LIMITED BENEFITS OF TAMOXIFEN
    Tamoxifen 's benefits are determined by several factors: (8)

    Postmenopausal women who are ER-positive (have a positive estrogen receptor status) get the most benefit.
    For postmenopausal women who are ER-negative, the benefits appear to outweigh the risks.
    For pre-menopausal women who are ER-positive, it's a tough call. Potential benefits are small.
    Pre-menopausal women who are ER negative receive virtually no benefit.
    Tamoxifen is more effective in women who have cancer in their lymph nodes than in those whose nodes are cancer-free.

    In 1992 the Lancet published a review of a number of studies in which a total of 30,000 breast cancer patients were randomly assigned either to take tamoxifen or not. The average patient in this collaborative study was followed up for between five and six years. Of the patients taking tamoxifen, 74.4 per cent survived, as compared with 70.9 per cent in the non-tamoxifen group — a less than impressive improvement.

    The report found that the group helped most consisted of post-menopausal women with ER-positive status. The study went on to report that pre-menopausal women who are ER-negative had absolutely no benefit from taking tamoxifen. (9)

    Despite tamoxifen's proven ability to reduce breast cancer recurrence in postmenopausal women, major studies have shown that tamoxifen reduces death from breast cancer only marginally. (10) The majority of women who take tamoxifen live no longer than women who do not take it. (11) Furthermore, some breast cancers learn how to use tamoxifen to stimulate their growth.

    The benefits of tamoxifen are limited. Virtually all women who take it become resistant within five years. (12) A recent randomized controlled study showed that tamoxifen reached its maximum protective effect on breast tissue with women who took it for five years. Taking it for five more years didn't offer any more protection, and may actually have caused more cancers. In other words, after a while the breast cells become resistant to tamoxifen and actually start to be fed by it. (13)

    This result surprised the researchers. According to Dr. Susan Love, author of Dr. Susan Love's Hormone Book: "This is a dramatic example of why you need good, long-term studies. If we had based all of our recommendations on the five-year data without doing further studies, we would have had women taking tamoxifen forever. So convinced were we that tamoxifen was a wonder drug that the only reason researchers did the later study at all was to prove it wrong. Luckily, we found out that we were wrong in time to prevent doing further damage. We have learned, not for the first time, that more isn't always better." (l4)


    TAMOXIFEN'S DARK SIDE
    While the initial findings of tamoxifen's role in breast cancer treatment seemed so promising, as with so many of the synthetic hormone drugs, further research presented grave concerns for its widespread use. In fact, the MIMS Annual lists 25 adverse reactions to tamoxifen: some of l these can be fatal.


    Menopausal Symptoms
    Tamoxifen often induces menopausal symptoms in menstruating women. About half of these women experience hot flushes. Fluid retention and weight I gain occur in about 25 per cent of l women and can be controlled by reducing the dose. Vaginal discharge and vaginal atrophy are additional symptoms. Some studies have also found l that pre-menopausal users are at risk of developing accelerated bone-mineral loss and osteoporosis.

    Menstrual irregularities also occur in pre-menopausal women. Amenorrhea (absence of the menstrual cycle) often results and can be permanent.


    Eye Damage
    According to a 1978 study in Cancer Treatment Reports and another published in Cancer in 1992, about six per cent of women taking even low-dose tamoxifen suffer damage to the retina and corneal opacities and decreased visual acuity. Irreversible corneal and retinal changes can occur in those taking 20 mg. of tamoxifen twice a day (twice the usual dose). These changes may have no immediate effect on visual acuity, but may predispose the eyes to later problems including cataracts.


    Blood Clots
    Tamoxifen irritates the walls of the veins, and inflammation (a natural healing response to irritation) follows. The constant irritation and inflammation weakens the veins, causing bleeding, clotting, thrombophlebitis and, in the worst cases, obstruction of the blood vessels serving the lungs, which can be deadly and can occur with little warning. The incidence of thrombophlebitis in women using oral contraceptives is generally regarded as significant (1 in 2,000); however, with tamoxifen it's 30 times greater."

    Several studies, including one reported to the FDA's Oncological Drugs Advisory Committee by the National Surgical Adjuvant Breast and Bowel Project in 1991, showed that the risk of developing life-threatening blood clots increases about seven times in women taking tamoxifen. (6)


    Psychological Symptoms
    Depression has been reported as a potential side-effect of tamoxifen in 30 per cent of women. Cases have been reported of an inability to concentrate.

    It is important that patients observe their moods and mental states. If it is suspected at tamoxifen is causing depression or lack of concentration, it is suggested that a period of tamoxifen avoidance be considered.


    Other Symptoms
    Tamoxifen can trigger asthma attacks in some sensitive patients.

    Changes to the vocal cords resulting in impairment of singing and speaking abilities are occasionally caused by tamoxifen.


    CARCINOGENENIC EFFECTS
    It wasn't long before laboratory studies showed that tamoxifen acted as a carcinogen. It has been found that tamoxifen binds tightly and irreversibly to DNA, the genetic blueprint of a cell, causing a cancerous mutation to take place. Even Australia's conservative National Health and Medical Research Council (NHMRC) warned that no amount of tamoxifen is safe when it comes to carcinogenic effects.

    In California there is a law called "Proposition 65" that requires the state to publish and maintain a list of all known carcinogens. In May 1995, the state's Carcinogen Identification Committee voted unanimously to add tamoxifen to its list.

    Following suit, in 1996 the World Health Organization formally designated tamoxifen a human carcinogen, grouping it with 70 other chemicals — about one quarter of them pharmaceuticals — that have received this dubious distinction.


    Liver Cancer and Liver Disease
    Tamoxifen is toxic to the liver, and there have been reports of acute hepatitis in patients treated with tamoxifen. Liver damage has occurred in every animal given tamoxifen. According to Gary Williams, medical director of the American Heart Foundation, tamoxifen has been shown in animal studies to be a "rip-roaring" liver carcinogen, inducing highly aggressive cancers in about 12 per cent of rats. (7)

    The latest human studies show a six-fold increase in liver cancer among women taking tamoxifen for more than two years." Liver failure and tamoxifen-induced hepatitis, although rare, have been reported. Even Zeneca admits that tamoxifen is a liver carcinogen — while nevertheless aggressively promoting its use.


    Uterine (Endometrial) Cancer
    As early as 1967, ICI scientists noted that "tamoxifen persists for some days in the uterus". In rats, a tamoxifen metabolite (a breakdown compound almost similar in structure to the original) was found to influence the uterus to be more receptive to estrogen. (The more estrogen, the greater the chance of unnatural cell-division leading to cancer.) ICI also reported liver carcino-genicity of tamoxifen as well as both ovarian and testicular tumors in mice in its description of the drug in the standard Physicians Desk Reference.

    Uterine growths such as polyps, tumors, endometrial thickenings and cancers occur in a significant number of women taking tamoxifen. One study detected abnormal endometrial cells in subjects the day after the first tablet was taken. (9) Pre-cancerous uterine and endometrial changes were seen in 10 per cent of the women taking tamoxifen in a recent study. The higher the dose of tamoxifen and the longer it is taken, the greater the risk of changes. Women taking the standard dose of 20 mg. for two years run a risk of uterine cancer that is 2 to 3 times greater than normal. After five years, the risk is 6 to 8 times greater. (20)

    In February 1996 a review by the International Agency for Research on Cancer, composed of scientists from various countries, definitively concluded that "there is sufficient evidence to regard tamoxifen as a human carcinogen that increases a woman's risk of developing cancer of the endometrium, the inner lining of the uterus" (21)

    A large Swedish study linking tamoxifen to uterine cancer forced Zeneca to send letters in April 1994 to 380,000 physicians across the USA, in defense of the drug. The Swedish researchers had studied 1,371 breast cancer patients who took 40 mg. per day for two to five years and found that there was a six-fold increase in uterine cancer among those patients who took tamoxifen when compared to 1,327 who did not. A second study involving patients who took 20 mg. per day (the recommended dose) also showed a marked increase in uterine cancers compared with the control group. (22)

    When the news came out that breast cancer patients who took tamoxifen for five years or longer (the same regimen that seems to prevent recurrence) might have tripled their risk of uterine cancer, British cancer researcher Richard Peto, head of the cancer research unit at Oxford University, sought to dismiss it. If caught early, he said, endometrial cancer seldom kills, so "it's no big deal". That statement infuriated critics who noted that the treatment for uterine cancer is hysterectomy. Dr. Adriane Fugh-Berman, a leading women's health activist, angrily responded: "To some of us, it is a big deal to lose your uterus."

    Shortly after Peto's flip dismissal of uterine cancers, researchers at the M. D. Anderson Cancer Center at Houston and at Yale University School of Medicine discovered that breast cancer patients who develop uterine cancer while using tamoxifen are likely to have a fast-moving, lethal form of the disease. (23)

    It should be noted that tamoxifen has also been associated with gastrointestinal cancers.


    Breast Cancer
    The premise for taking tamoxifen is its supposed role in protecting breast cancer patients from recurrence of the cancer. It was further postulated that it prevented breast cancer from occurring in the opposite breast (contralateral).

    However, disturbing findings continue to surface, challenging tamoxifen's effectiveness. In 1992 the New England Journal of Medicine showed that tamoxifen may reduce the incidence of contralateral cancer, but this was demonstrated only in pre-menopausal women and only in three out of eight trials. In another 1992 study, reported in Octa Oncologica, it was shown that tamoxifen not only failed to reduce contralateral cancers in pre-menopausal women, but it actually increased their incidence. (24)

    The irony of tamoxifen is that, while widely publicized as the leading treatment against the recurrence of breast cancer, it is a known and listed carcinogenic substance.


    Heart Disease and Osteoporosis
    Another promise of tamoxifen was its supposed protective benefits for the heart and bones. It was theorized that its estrogenic properties would help reduce heart disease and osteoporosis in women, but once again the theory crumbled under the weight of hard facts.

    Several trials with tamoxifen failed to show that it has any effect on bone density and thus on prevention of osteoporosis. In three other trials, bone density increased slightly in lower spinal vertebrae but not in longer bones or hip bones which are particularly susceptible to fractures and potentially fatal complications.

    Initial data seemed to indicate that it decreased the incidence of heart attacks, but they have been disproved by more recent studies. According to Dr. Susan Love: "It doesn't seem to have a bad effect on lipids, but that's a far cry from preventing heart attacks."

    A detailed review of the drug's alleged protective cardiovascular effects prompted the British National Heart, Lung and Blood Institute, a once strong proponent of tamoxifen, to withdraw its support because the evidence of benefit proved so inadequate. (25)

    According to the January 1996 issue of The Network News, it was reported at a closed-door meeting of the National Cancer Institute that tamoxifen failed to prevent heart disease in breast cancer patients.


    THE BREAST CANCER PREVENTION TRIAL
    Based far more on wishful thinking than on science, the U.S. National Cancer Institute (NCI) leaped to the conclusion that tamoxifen's anti-estrogenic effects in relation to breast cancer treatment meant that the drug would prevent breast cancer from developing in healthy women.

    Disregarding all the research implicating tamoxifen with serious and potentially fatal side-effects, the NCI launched a US$60 million breast cancer prevention trial in April 1992, aiming to recruit 16,000 healthy women in the United States, Europe, Canada, Australia and New Zealand. Still ongoing, the trial now involves 13,000 healthy women over the age of 35 who are considered at high risk. Australia has recruited 1,350 women, with a target of 2,500. For five years, half the women receive tamoxifen and half receive a placebo. The drug is supplied free of charge by manufacturer Zeneca.

    Dr. Samuel Epstein, Professor Environmental Medicine at the University of Illinois School of Public Health and author of The Breast Cancer Prevention Program, raises serious concerns. "Unfortunately, this misguided and dangerous approach to prevention stems from the entrenched fixation of the NCI on the use of chemical drugs to prevent cancer which may have been induced by chemical pollutants, medical technology (such as radiation from X-rays) and carcinogenic/estrogenic drugs in the first place. Instead of attempting to reduce the carcinogenic chemical burden under which we struggle to maintain our health, the NCI believes that the solution is to add more chemicals to the mix."

    Dr. Susan Love concurs: "It is a sad state of affairs when we have to add yet more chemicals to counteract the effects of other chemicals."

    This attitude extends to the way the NCI treats the women in the trial. They are given no guidance on alternative protective measures such as increasing exercise, maintaining a healthy weight, eating a protective diet and avoiding exposure to environmental carcinogens; nor are they being fully informed about the serious risks of tamoxifen.

    Dr. Lynette Dumble, Senior Research Fellow in History and Philosophy of Science at the University of Melbourne, believes that the global trial to prevent breast cancer with tamoxifen is a modern and very large chapter of "medical imperialism". Back in October 1994 she commented on ABC TV's Quantum science program that the tamoxifen trial was the medical equivalent of mutilating surgery which prevents a woman from developing breast cancer by cutting off both her breasts.

    Dr. Dumble sees women as vulnerable guinea pigs for the trial, and questions both the breast cancer risk of healthy women volunteering for the trial (how can you tell whether fate or tamoxifen prevents a woman from developing breast cancer?) and the terms of the trial's positives and negatives (if a woman dies of tamoxifen-related endometrial or liver cancer, does this count as a tamoxifen success in preventing breast cancer?).

    It seems absurd, but why would the powers-that-be continue to promote a trial that promises to substitute one cancer for another in otherwise healthy women? Once again, healthy women are targeted as the guinea pigs for a drug treatment that has already been proven to be a cause of a variety of cancers including breast cancer. In the case of tamoxifen, medical research has once again taken a back seat to profits. It is the population that is at risk. The cancer establishment would certainly be eager to prove a tamoxifen-prevention role, since it would then open up another huge, billion-dollar market.


    ALTERNATIVES TO TAMOXIFEN
    While the cancer establishment continues to invest vast amounts of money into research, manufacturing and trialling of harmful drugs for the prevention and hopeful cure of breast cancer, there are safer and more effective options that already exist.

    Estriol, one of the estrogens produced by the ovaries, is considered a safe estrogen in that it has been shown to inhibit breast cancer. Dr. Henry Lemon and his colleagues conducted a study in women who already had breast cancer that had spread to other areas of the body. One group was given Estriol and another not. At the end of the study, 37 per cent of those women who received estriol had either a remission or an arrest of their cancer. Might not estriol, a natural, safe hormone with almost no side-effects, be able to accomplish what tamoxifen does but without the toxic side-effects?

    There is also convincing evidence that natural progesterone has an important role in breast cancer treatment and prevention. A study conducted in 1981 at Johns Hopkins University revealed that when a group with a low progesterone level was compared with a normal-level progesterone group, it was found that the occurrence of breast cancer was 5.4 times greater in the women in the low progesterone group. That is, the incidence of breast cancer in the low progesterone group was over 80 per cent greater than in the normal progesterone group. When the researchers looked at the low progesterone group for all types of cancer, they found that these women experienced a tenfold increase in all malignant cancers, compared to the normal group.

    In a 1995 study published in the Journal of Fertility and Sterility, researchers found that women using a topical progesterone cream had dramatically reduced breast cell multiplication rates compared to women using either a placebo or estrogen. This exciting study demonstrated that natural progesterone creams impressively decreased breast cell proliferation rates. (27)

    Lifestyle factors also play a significant role. In a prospective study of 25,624 Norwegian women aged 20 to 54, after an average of 14 years of follow-up the investigators found strong evidence that everyday exercise, both at work and at leisure, reduced the breast cancer risk. Women who exercised at least four hours a week during leisure time were found to have a 37 per cent reduction in risk of breast cancer, compared with sedentary women. The study found that the more time spent exercising, the lower the breast cancer risk. (28)

    As Dr. John Lee pointed out in his best-selling book, What Doctors May Not Tell You About Menopause: "Herbs and food contain phyto-estrogens. Their benefit parallels that of tamoxifen (without the adverse side-effects) in that phyto-estrogens occupy estrogen receptors and are less estrogenic than those made by the body. Since it is now known that reducing caloric intake reduces estrogen levels, and recent studies find 46 per cent less breast cancer among women consuming more fruit and vegetables, it would seem that women interested in preventing breast cancer could make modest changes in diet and derive better and certainly safer results." (29)

    History continues to repeat itself. Time and time again women have been reassured that the wonder drugs or treatments offered them would be their salvation, only to discover they were exposed to harmful carcinogenic and mutagenic chemicals.

    In addition to the DES debacle, the disasters of thalidomide, silicone breast implants, estrogen replacement therapy and now tamoxifen (to name just a few) continue to demonstrate how readily women's lives have been sacrificed in the pursuit of profits. The warnings have been drowned out by the glossy advertising campaigns and the reassurances of "medical experts".

    There are solutions to the breast cancer epidemic. However, they will be found more by altering lifestyle, dietary and stress factors, and reducing or eliminating exposure to the many known toxic, carcinogenic chemicals that are polluting the environment, than by some miraculous drug discovery. It is also up to women not only to continue to become fully educated about safe health options but to demand them from health providers. Too many women have already been maimed and sacrificed to unproven and unsafe drug treatments.

    It is widely believed that today's drugs are tomorrow's poisons. In the case of tamoxifen, tomorrow has already arrived.
    He who overcomes others has force; He who overcomes himself is strong. Lao-tzu

  5. #5
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    The first thing we have to consider is that you simply cannot extrapolate studies performed on females to males. We are that different.

    For males, however, I do worry about possible ocular damage and increased risk of liver CA.

    Estrogen (as are drugs of this class to the uterus) unopposed by progesterone is wel-known to increase th erisk of uterine CA. THAT is no surprise.

    I just am not in favor of long-term use of SERM-class drugs in males.

    The first two studies are very interesting. However, they do not apply to my patients, as they know how to use HCG appropriately.

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