Cell Phones and Brain Tumors

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                        Cell Phones and Brain Tumors

                        Written by Dr. Daniel J. Murphy D.C., D.A.B.C.O.
                        TAC, Research , Volume 32, Issue 2
                        Published:
                              

 

                        TITLE: Cell phones and brain tumors: A review including
                        the long-term epidemiologic data
                        CITATION: Surgical Neurology, September 2009; 72; pp.
                        205–215
                        AUTHORS: Vini G. Khurana, Ph.D., F.R.A.C.S., Charles
                        Teo, M.B.B.S., F.R.A.C.S., Michael Kundi, Ph.D.,
                        Lennart Hardell, M.D., Ph.D., Michael Carlberg, M.S.
                        TITLE: Cell phones and brain tumors: A review including
                        the long-term epidemiologic data
                        CITATION: Surgical Neurology, September 2009; 72; pp.
                        205–215
                        AUTHORS: Vini G. Khurana, Ph.D., F.R.A.C.S., Charles
                        Teo, M.B.B.S., F.R.A.C.S., Michael Kundi, Ph.D.,
                        Lennart Hardell, M.D., Ph.D., Michael Carlberg, M.S.
                        Key Points from Dr. Dan Murphy
                      
                      
                        1. This article has 68 references. An editorial comment
                        ascribed to this study indicates that it is "the most
                        comprehensive study and analysis to date of this topic."
                        2. These authors found 11 long-term studies in the
                        PubMed database of participants using cell phones for
                        ≥10 years.
                        3. "The results indicate that using a cell phone for ≥10
                        years approximately doubles the risk of being diagnosed
                        with a brain tumor on the same ("ipsilateral") side of
                        the head as that preferred for cell phone use."
                        4. "The authors conclude that there is adequate
                        epidemiologic evidence to suggest a link between
                        prolonged cell phone usage and the development of an
                        ipsilateral brain tumor."
                        5. The power [and danger] generated by a cell phone will
                        vary according to the amount of interference with the
                        signal. Higher power is required when using a cell phone
                        in a moving vehicle, within a building, or in an
                        elevator.
                        6. "The output power [and danger] of the phone is
                        generally set to the highest level during ‘handovers’
                        between networked base stations as a user moves from one
                        geographic area to another or when signal interference
                        is greatest."
                        7. Evidence presented suggests that cordless phones are
                        also not safe.
                        8. Cell phones emit electromagnetic radiation only
                        during calls.
                        9. Cell phone systems have been presumed to be safe
                        because their longer wavelengths are nonionizing,
                        lacking sufficient energy to break intermolecular bonds.
                        Therefore, their increased cancer risk is not as a
                        consequence of ionization.
                        10. "Science Magazine has recently acknowledged that
                        there are several peer-reviewed studies from
                        laboratories in at least 7 countries, including the
                        United States, showing that cell phone or similar
                        low-intensity electromagnetic fields can (contrary to
                        expectations of non-ionizing sources) break DNA or
                        modulate it structurally."
                        11."Irrespective of the type of phone, exposure is
                        highest on the side of the head against which the cell
                        phone is held and appears to be even higher in children
                        owing to thinner scalps and skulls, increased water
                        content of their brain, and lower brain volume."
                        12."Many independent laboratory investigations have
                        suggested adverse biologic effects of cell phone
                        radiation." (12 references)
                        13.The authors present evidence that cell phones can be
                        DNA-damaging as a consequence of "non-thermal
                        interaction between incoming microwaves and exquisitely
                        sensitive oscillatory electrical processes found in
                        living tissues." "This is akin to the reception of a
                        clock radio being susceptible to interference from a
                        nearby cell phone." This "oscillatory similitude may
                        lead to genetic or epigenetic damage through increased
                        local production of reactive oxygen species or free
                        radicals." [Wow!]
                        14."There are several hundred studies that support the
                        existence of low-intensity, non-thermal effects of cell
                        phone radiation on biological systems. The consequences
                        are mostly adverse: DNA single- and double-strand
                        damage, changes in gene transcription, changes in
                        protein folding, heat shock protein generation,
                        production of free radicals, and effects on the immune
                        system."
                        15."Taken together, the long-term epidemiologic data
                        suggest an increased risk of being diagnosed with an
                        ipsilateral brain tumor related to cell phone usage of
                        10 years or more."
                        16.There are also "significantly elevated odds for the
                        development of ipsilateral parotid gland tumors among
                        heavy cell phone users."
                        17.The Central Brain Tumor Registry of the United States
                        maintains comprehensive tumor incidence rates in the
                        USA, and their data shows an increase in incidence of
                        brain tumors of about 36% in less than a decade. This
                        increase is not explained by an aging population
                        (because these figures were age-adjusted) or by better
                        detection.
                        18."The authors believe that the aforementioned
                        epidemiologic and laboratory findings underscore the
                        need for reassessment by governments worldwide of cell
                        phone and also most radiation exposure standards and the
                        usage and deployment of this technology. If the
                        epidemiologic data continue to be confirmed then, in the
                        absence of appropriate and timely intervention and given
                        the increasing global dependence on cell phone
                        technology, especially among the young generation, it is
                        likely that neurosurgeons will see increasing numbers of
                        primary brain tumors, both benign and malignant."
                        Dr. Dan Murphy graduated magna cum laude from Western
                        States Chiropractic College in 1978. He received
                        Diplomat status in Chiropractic Orthopedics in 1986.
                        Since 1982, Dr. Murphy has served part-time as
                        undergraduate faculty at Life Chiropractic College West,
                        currently teaching classes to seniors in the management
                        of spinal disorders. He has taught more than 2000
                        postgraduate continuing education seminars. Dr. Murphy
                        is a contributing author to both editions of the book
                        Motor Vehicle Collision Injuries and to the book
                        Pediatric Chiropractic. Hundreds of detailed Article
                        Reviews, pertinent to chiropractors and their patients,
                        are available at Dr. Murphy’s web page,
                        www.danmurphydc.com.