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As reported in ScienceDaily.com (4/09) Radiation Exposure Associated With More Aggressive Thyroid Cancer, Worse Outcomes

Patients with thyroid cancer who have previously been exposed to radiation, for example, in the workplace, through environmental exposure or for treatment of acne or another condition, appear to have more aggressive disease and tend to have worse outcomes in the long term, according to a new article.

"Thyroid cancer is one of the well-known malignant neoplasms [tumors] associated with radiation exposure," the authors write as background information in the article. "It often induces characteristic histologic changes in thyroid tissue, and it is a well-established risk factor for both benign and malignant thyroid tumors. This is supported by epidemiologic studies in atomic bomb survivors and in children living in contaminated areas around Chernobyl, Ukraine, after the 1986 nuclear reactor accident."

Raewyn M. Seaberg, M.D., Ph.D., and colleagues at Mount Sinai Hospital, Toronto, Ontario, Canada, studied 125 patients who had been exposed to radiation at least three years before surgical treatment for thyroid cancer. All the patients were treated at one academic teaching hospital between 1963 and 2007.

Most (56 percent) had a history of direct radiation exposure to the head and neck, usually for the treatment of acne or another benign condition. Six percent had direct radiation exposure to other parts of the body; 23 percent had occupational or diagnostic exposures, such as radiographic technicians, dental assistants or patients exposed to repeated imaging procedures; 11 percent had environmental exposures, such as those in Chernobyl; and 4 percent had received radioactive iodine treatment. The average age at first exposure to radiation was 19.4 years, and cancers were diagnosed an average of 28.7 years later.

Patients were followed for an average of 10.6 years. During this time, 16 percent experienced a recurrence of the disease in the thyroid and 9 percent had cancer that had metastasized (spread) to distant areas. At the last follow-up, 86 percent were alive and free of disease, 4 percent were alive with recurrent thyroid cancer, 4 percent were alive with distant metastases, 4 percent had died of the disease and 2 percent had died of unrelated causes.

These patients were compared with a group of 574 patients of similar ages and sex distribution who also were treated for thyroid cancer but were not exposed to radiation beforehand. The radiation-exposed group was more likely to undergo total or near-total thyroidectomy (removal of the thyroid, 83 percent vs. 38 percent), require additional surgery (23 percent vs. 2 percent), have stage IV disease (16 percent vs. 5 percent), have distant metastases (9 percent vs. 2 percent), have thyroid cancer at follow-up (8 percent vs. 3 percent) or have died of the disease (4 percent vs. 1.5 percent). "Therefore, this study suggests that patients who have been exposed to radiation have more aggressive disease and worse clinical outcome than other patients with thyroid cancer and, therefore, may require more aggressive treatment," they conclude. Dr. Freeman holds the Temmy Latner/Dynacure Chair in Head and Neck Oncology.  


There Is No Safe Dose Of Radiation

As written by Barbara Minton, Natural Health Editor NaturalNews.com (4/09) Rosemary Found to Offer Best Protection against Radiation Poisoning:

The U.S. is turning into radiation nation. In the twenty-three years since Chernobyl, Americans seem to have forgotten the impact of radiation on health. Swept up in the euphoria over an endless parade of wireless devices, we have turned our backs on the common sense that informed us that Chernobyl was a really big deal when we heard the news. Today Americans act as though they are addicted to radiation and completely oblivious of the jack-hammering effect it has on human cells. They appear willing to accept cancer and even death as small prices to pay for the ability to communicate with anyone, anywhere, anytime. As the nation eagerly anticipates the rollout of WiMAX, promising bone-incinerating coverage of 3,000 square miles from a single tower, those who object find they have no voice and no choice.

It has been know for a decade that RF/microwaves from cell phones and tower transmitters cause damage in human blood cells that results in nuclei splintering off into micronuclei fragments. The development of micronuclei heralds the development of pre-cancerous conditions. Many victims of Chernobyl developed blood cell micronuclei that rapidly turned into full blown cancers.

Numerous animal studies have demonstrated that mobile phone radiation quickly causes DNA single and double strand breaks at levels well below the current federal "safe" standards. A six-year industry study showed that human blood exposure to cell phone radiation had a 300 percent increase in genetic damage in the form of micronuclei, suggesting a health threat much greater than smoking or asbestos. RF/microwave and gamma waves are identical in their abilities to produce gene damage and cancer at the cellular level, and there is no safe dose of either. Cell damage is not dependent on a certain level of exposure because at any time in that exposure, breaks in DNA can occur.

Communication antennas saturate the environment with multiple electromagnetic frequencies simultaneously. The response to this endless cellular jiggling is graphically described by Amy Worthington in her article on the radiation poisoning of America. "Human DNA hears this energetic cacophony loud and clear, reacting like the human ear would to high volume country music, R&B plus rock and roll screaming from the same speaker simultaneously. Irradiated cells struggle to protect themselves against the destructive dissonance by hardening their membranes. They cease to receive nourishment, stop releasing toxins, die prematurely and spill micronuclei fragments into a sort of tumor bank account." According to an expert quoted in her article, 2000 hours of cellular phone exposure, or a latency period of about 10 years, increases the risk of brain cancer by 240 percent.

Many studies have shown that workers exposed to RF/microwave radiation routinely have inflated cancer rates, and the latency period between exposure and disease development is short. Some suspect that communications carriers exceed FCC exposure limits. Once equipment is installed and inspections are completed, it can be cranked up to create wider coverage. The FCC has sole regulatory authority over the communications industry, but has neither the money nor the employees to conduct verification testing. Even if they could do the monitoring, their guidelines are obsolete based on current scientific findings that have shown damage to human cells occurs at levels thousands of times lower than current standards permit. In other countries the allowed exposure levels are much less. Russia's standards are 100 times more stringent than those in the U.S., because their scientists have found that human hearts, kidneys, livers and brains are damaged at much lower exposure levels.

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