Are Cell Phones Causing Cancer? |
Are Cell Phones Causing Cancer?Accessories ' The Finishing Touches For A Home In 1993, a man filed a lawsuit against the cell phone industry, claiming that his wife died from a brain tumor caused by her repeated use of the cell phone. The tumor was on the same side of the head where she held her cell phone and was shaped like the cell phone antenna. The case got widespread media attention and was featured in CNN's Larry King show.Accessories are the finishing touches that make your house a home. Just as purses, shoes, scarves and ties enhance the look >>>>> Although the claim was dismissed by the court due to lack of sufficient evidence, it was a public relations nightmare for the wireless industry. It also marked the beginning of the global search for a definitive answer to the question: are cell phones safe or not? Does it cause cancer and other degenerative diseases? Brain cancer is up 25% since cell phones became popular. Every year, there are 183,000 more cases in the US alone. Some health experts say there's a link with cell phone use, but is there proof? In an effort to diffuse the negative publicity from the high-profile lawsuit, the cell phone industry itself funded a $25 million dollar research program to prove that cell phones are safe. After 6 years of intensive research, however, the results were not what they were looking for. Dr. George Carlo, the chief research scientist of the program, found evidence that cell phones pose some health risks, possibly even cancer. The first evidence of cancer link that shook the cell phone industry came in 1997. Dr. Michael Repacholi and his colleagues from the Royal Adelaide Hospital in South Australia reported that long-term exposure to the type of radiation that comes from digital cell phones caused an increase in the occurrence of lymphoma in mice. The study received widespread international media attention because it was the first time that cancer has been linked to the cell phone in a well-conducted study. In order to show a link between cell phone radiation and cancer, let's look at several studies Dr. Carlo investigated that made him blow the whistle, so to speak. These red-flag findings provide the pieces that fit together to form the cancer picture: - DNA Damage in Human Blood Studies - Breakdown in the Blood-Brain Barrier - Studies of Tumors in People Who Use Cell Phones - Studies of Cell Phone Radiation Dosage and Response DNA DAMAGE IN HUMAN BLOOD All tumors and all cancers are the result of genetic damage. Most often that damage includes the formation of micronuclei--fragments of chromosomes that form membranes around themselves and appear under a microscope as additional nuclei in blood cells (which normally have just a single nucleus). The relationship between micronuclei and cancer is so strong that doctors around the world test for their presence to identify patients likely to develop cancer. The presence of micronuclei indicates that the cells can no longer properly repair broken DNA. This deficiency is considered to be an indication of an increased risk of developing cancer. - In December 1998, Drs. Ray Tice and Graham Hook of Integrated Laboratory Systems in North Carolina have shown that blood cells exposed to cell phone radiation suffer genetic damage in the form of micronuclei. In their studies, DNA and chromosome damage in human white blood cells occurred when exposed to signals from all types of phones--analog, digital, and PCS. Damage was shown even from signals occurring at a SAR level below the government's "safety" guideline. - Using different methods, the above finding was confirmed by Dr. Joseph Roti Roti of Washington University in St. Louis in 2000. His research showed that human blood cells exposed to radiation at wireless phone frequencies did indeed develop genetic damage, in the form of micronuclei. This finding received a lot of notice because Dr. Roti Roti is a prominent scientist who does hiw work under funding by Motorola Inc. This has a very serious implication. If cell phone radiation encourages the formation of micronuclei in blood cells, and micronuclei are said to be "biological markers" for cancer, then based on these studies alone cell phone use could be said to increase the risk of cancer. BREAKDOWN IN THE BLOOD BRAIN BARRIER The blood brain barrier is a special filter in the blood vessels of the brain that keeps dangerous chemicals from reaching sensitive brain tissue and causing DNA breaks and other damage. How Young Is Too Young? Buying Cell Phones For Kids - In 1994 and again, in 2002, Dr. Leif Salford from Lund University in Stockholm, Sweden found in his studies that rats exposed to cell phone radiation showed a breakdown in the blood brain barrier, as well as areas of shrunken, damaged neurons.Take a random tween, age 8-12, place them in front of a rotary phone and observe at the blank stare of bewilderment. Yes,>>>>>>> The micronuclei studies of Tice, Hook and Roti Roti and the blood-brain findings of Salford provide a two-step explanation for how cancer could be caused by cell phone radiation. Step One: A leakage or breakdown in the blood brain barrier would provide a pathway for cancer-causing chemicals in the bloodstream (from tobacco, pesticides, air pollution, etc.) to leak into the brain and damage sensitive brain tissue that would otherwise be protected. These chemicals could break the DNA in the brain or cause other harm to reach those cells. Step Two: While a number of studies showed that cell phone radiation by itself does not appear to break DNA, the micronuclei findings suggest that they do impair the DNA repair mechanisms in brain cells. Micronuclei result from a breakdown of the cell's ability to repair itself. If the brain cells become unable to repair themselves, then carcinogenesis--the creation of tumors--induced by chemical toxins could begin. DNA carries the genetic material of an organism and its different cells. Any damage that goes unrepaired affects the future generation of cells. The change has procreated and this mutation is seen as a possible cause of cancer. Denso Cell Phone Accessories - For Your Phone TUMORS IN PEOPLE WHO USE CELL PHONESAccessorizing your cell phone is both easy and affordable with Denso cell phone accessories and among the extensive>>>>>>> Epidemiological studies, performed by different investigators using different methods, show some evidence of an increased risk of tumors among people who use cellular phones. - In 1998, Dr. Ken Rothman of Eidemiology Resources, Inc. in Newton, Mass., did a study showing that users of handheld cell phones have more than twice the risk of dying from brain cancer than do car phone users--whose antennas are mounted on the body of the car, far removed from the users' heads. - In 1998, Joshua Muscat, a research scientist from the American Health Foundation, showed in his study a doubling of the risk of developing neuro-epithelial tumors on the outside of the brain among cell phone users, particularly on the side of the skull where cell phone antennas are held during calls. - Muscat also showed in another study that people who have used cell phones for six years or more have a 50-percent increase in risk of developing acoustic neuroma, a benign tumor of the nerve that controls hearing and extends from the ear to the brain. Acoustic neuromas can cause hearing loss and can be life-threatening if untreated. This was confirmed in a separate study in Stockholm, Sweden by Anders Ahlbom in 2004 and sponsored by the World Health Organization (WHO), which finds that people who have used cell phones, this time for at least 10 years, may have an increased risk of developing acoustic neuroma. - In a study also requested by WHO, researchers headed by Dr. Lennart Hardell of the Orebro Medical Center in Sweden examined 1,617 patients aged between 20 and 80 who had been diagnosed with a brain tumour between 1997 and 2000. They were then compared to healthy people. Those who used cell phones for less than 10 years faced a 20% higher risk of developing brain cancer. But for those who used them for more than a decade the risk was 80% higher. The study also found that tumours were 2.5 times more likely to be on the same side of the head as the phone was held. The cancer of the auditory nerve, accoustic neuroma, showed a larger increase--3.5 times greater risk. CELL PHONE RADIATION DOSAGE AND RESPONSE All studies mentioned showed that an increase in cell phone radiation exposure also increases the likelihood of the adverse effect occurring. In Repacholi's study of mice, the risk of lymphoma increased significantly the longer the mice were exposed to the radio waves. In the research work done by Tice, Hook, and Roti Roti, the risks of genetic damage as measured by micronuclei formation increased as the amount of radiation increased. In the three epidemoiological studies--two by Muscat and one by Hardell--the risk of tumors was greater in the areas of the brain near where the cell phone was held. In Salford's study, the higher the radiation exposure level the rats were exposed to, the more damage was apparent in the blood vessels in the brain and the neurons. THE BIG CANCER PICTURE The test tube studies by Tice and Hook; the mouse study by Repacholoi and Selford; and the epidemiological studies by Rothman, Muscat, and Hardell all agree in that they suggest an increased risk of cancer among cell phone users. They fit together to form the beginnings of a picture that everyone can see. They perhaps don't form the complete picture yet, but there are enough already in place to see that there is cause fo genuine public health concern about cell phone safety. According to Dr. Carlo, "The big picture is disturbingly clear. There is a definite risk that the radiation plume that emanates from a cell phone antenna can cause cancer and other health problems. It is a risk that affects hundreds of millions of people around the world. It is a risk that must be seen and understood by all who use cell phones so they can take all the appropriate and available steps to protect themselves--and especially to protect young children whose skulls are still growing and who are the most vulnerable to the risks of radiation." MORE PIECES COMING - In 2000, a team of Sydney researchers published a scientific hypothesis about how mobile phone radiation causes cancer. The report claims that the radiation generated by cell phones causes ongoing stress to the body cells, causing them to give off 'heat shock proteins (HSP).' The human cells sometimes release these proteins in response to injury or infection. Such a chronic activation of the heat shock response affects the normal regulation of cells, which could result in cancer. - In 2002, cell biologist Fiorenzo Marinelli and his team at the National Research Council in Bologna, Italy, exposed leukemia cells ...... |
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