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Vaccine Ethylmercury vs. Methylmercury



 
 
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Old May 13th 10, 12:10 PM posted to misc.health.alternative,misc.kids.health,sci.med
john[_5_]
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Default Vaccine Ethylmercury vs. Methylmercury


Several pages of the paper examine the toxicity of methylmercury and its
past use as a fungicide. We are led to believe that this form of mercury is
much different than ethylmercury, the type found in vaccines. This is in
spite of the fact that ethylmercury was used for the same purpose. In fact,
Ethylmercurric Chloride, the material used as a fungicide (which was banned
long ago) is what is used to make thimerosal. This can be easily confirmed
by looking in a Merck Index. We now know that this type of mercury deposits
twice as much inorganic mercury in the brains of primates as compared to
equal doses of methylmercury (4). Inorganic mercury, following the
de-methylation of organic mercury, has been identified as the primary
neurotoxic agent in primate studies (5).
The author mentions the book, "Evidence of Harm: Mercury in Vaccines and
the Autism Epidemic" by David Kirby. It contains 436 scientific references.
The author did not disclose if he read the book. This may have helped his
argument since this book was read by many parents of autistic children. (4)
Burbacher T, Shen D, Liberato N, Grant K, Cernichiari E, Clarkson T. 2005.
Comparison of blood and brain mercury levels in infant monkeys exposed to
methylmercury or vaccines containing thimerosal. Environmental Health
Perspectives. 113:1015-1021. LES INCOMPETANTS: OPEN LETTER TO THE AAP By K.
Paul Stoller, M.D.

Health officials often claim that ethylmercury-the type of mercury found in
vaccines containing thimerosal-should not be compared to methylmercury, a
well-established neurotoxin. However, a Russian study found that adults
exposed to much lower concentrations of ethylmercury than those given to
American children still suffered brain damage years later. In 1985, the
Archives of Toxicology published a comparative study that administered
similar doses of ethylmercury and methylmercury to rats. The
ethylmercury-treated rats had higher amounts of inorganic mercury in their
kidneys and brains.91 In August 2005, a study funded by the National
Institutes of Health also found that ethylmercury is more toxic to the brain
than methylmercury. It crosses the blood-brain barrier quicker and converts
to inorganic mercury-which is more difficult to excrete and stays in the
brain longer-at much higher levels. [2010] MAKE an INFORMED VACCINE DECISION
by Mayer Eisenstein, MD, JD, MPH (with Neil Miller) p.128

[EOHarm] Ethyl vs. Methyl

THE NATIONAL VACCINE ADVISORY COMMITTEE SPONSORED WORKSHOP ON THIMEROSAL
VACCINES DAY ONE - VOLUME I AUGUST 11th, 1999

Dr. George Lucier
National Institutes of Health

..A second study, which was not discussed this morning, is that adult male
and female rats were administered five daily doses of equimolar
concentrations of ethyl or methylmercury by gavage and tissue distribution,
neurotoxicity, and nephrotoxicity assessed. This was a Magos study in 1985
in the Archives of Toxicology. And the key points of that paper we
neurotoxicity of methyl and ethylmercury were similar, although higher
levels of inorganic mercury were seen in the brains of ethylmercury-treated
rats consistent with what we'd said about metabolism; and likewise, because
of that, the renal damage was greater in the ethylmercury treated rats.

..I think it is important to note from the Magos study, in which he directly
compared ethyl and methylmercury, that he found essentially the same results
in both studies, with the exception that the renal toxicity was greater with
ethyl, and I think that was because of the demethylation as a way of
concentrating the mercuric chloride or inorganic mercury in the kidney.


 




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