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Faulty
Methylation
Methlylation is
what occurs when your body takes one substance and turns
it into another, so it is detoxified and can be excreted
from the body.
Methylation is a
process that occurs one billion times per second, it
takes place in the liver during phase two
detoxification. A methyl group is a carbon atom with
three hydrogen atoms attached to it. Methylation occurs
when SAMe (S-adenosine methionine) donates a methyl
group, which is then attached to the molecule that is
being detoxified. SAMe then becomes homocysteine.
Vitamin B6, B12, and folic acid are necessary to reduce
homocysteine and keep the methylation process occurring.
Faulty
methylation has been linked to heart disease, stroke,
neural tube defects, Alzheimer's disease, colon cancer,
reproductive cancers, kidney infarct, cervical dysplasia,
faulty detoxification and impaired DNA repair. When you
have poor methylation your body's levels of homocysteine
will elevate. Homocysteine is a amino acid that is
toxic to the body. Dr. Kilmer McCulley (author of “The
Homocysteine Revolution”), discovered that high levels
of homocysteine caused heart disease and stroke in
animal studies. He then found that B vitamins decreased
the homocysteine levels, and therefore stopped the heart
disease process. Our society has the mindframe that
cholesterol is the biggest factor to heart disease, but
only 40% of people who have heart attacks have any of
the standard risk factors. Could the cause be
homocysteine?
According to
the “Lancet” 1980 poor methylation will cause neural
tube defects. It was found that mothers who had
children with neural tube defects from a previous birth,
who took a multivitamin had a 1:178 incident of repeated
neural tube defects, where the control group with no
multivitamin had a 5:260 incident of neural tube
defects. In 1991 the “Lancet” reported that folic acid
was the nutrient that prevented neural tube defects. In
the “Journal of the American Medical Association” 1992
it was found that low folic acid levels increased the
incidence of cervical dysplasia. It was also discovered
that folic acid supplementation could stop the process
and even reverse it. The “Journal of Nutrition” year
2000, reported that the lower the levels of folic acid
and vitamin B12 the more severe the cervical dysplasia.
In 1988, the “New England Journal of Medicine” stated
that lower levels of folic acid and vitamin B12
increased the incidence of Alzheimer's. This is because
folic acid and vitamin B12 are needed for phospholipid
synthesis in the brain.
Methylation is
also used in DNA. Every cell in your body has the DNA
for every other cell, but your liver cell doesn't make a
heart cell. This is because methyl groups turn off the
DNA we don't want our bodies to read. If you have poor
methylation your body will start to take the methyl
groups off of your genes to use for other purposes. Now
if that methyl group was removed from a cancer gene, it
may begin to express cancer. This is how methylation
turns off your oncogenes and your metastatic promoter
genes. The “Journal of Nutrition and Cancer” year 2000,
stated that cancer cells have lower levels of folic acid
and vitamin B12 and therefore lower levels of
methylation. “Journal of Carcinogenesis” year 2000,
states that methylation is needed to mask DNA as well as
repair DNA.
Approximately
one trillion molecules of oxygen passes through every
single cell in our body in a 24-hour period. This
equals approximately 100,000 free radical hits on our
cellular DNA. 99 to 99.9 percent is repaired by
methylation. Approximately one-third of people have the
677 C to T polymorphism (which can be tested through
genomics).
This doesn't allow them to convert folic acid to the
activated form of 5 methyl tetrahydrofolate, which is
needed to make the enzyme 5 methylene tetrahydrofolate
reductase. This is the enzyme that is needed to remove
homocysteine. Individuals who have this genetic
polymorphism will have an increased risk of the above
mentioned diseases.
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