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Thursday, July 28, 2011

[AlternativeAnswers] Vitamin C shows eyes and brain health potential

 


Please save your patients eyes and brain. Let them understand this
important research on vision and brain function and vitamin C! The new research
indicates that vitamin C may not only benefit the eye, but have wider
implications for the functioning of the central nervous system (CNS).

I have not had less than 8 grams of BIOEN'R-G'Y C a day for years and
when under stress like deadlines and travel, 12-16 gm is what I take. My eye
glass prescription had to be weakened as at age 76 my vision is improving!

I take everything listed on my website and use PEMF daily including direct
to my head! I also have been on continuous oral chelation with the total 9
pill package that requires twice a day for well over 15 years now. So I
would prefer to not leave anything out, as everything is working very well!!
If I had the time I would get IV Myer's and short chelation IV too, as
nothing can get out all the toxins like lead and oral nutrients usually cannot
be well enough absorbed to keep magnesium etc in optimal shape.

But I muddle through somehow with only my oral program but research with
PEMF suggests that it provides a bioporation effect.

Garry F. Gordon MD,DO,MD(H)
President, Gordon Research Institute
www.gordonresearch.com

http://www.nutraingredients-usa.com/Research/Vitamin-C-shows-ey
es-brain-health-potential-Study/?c=DcghxY3t7h6VWOa1OE%2F74g%3D%3D&utm_source=newsletter_d
aily&utm_medium=email&utm_campaign=Newsletter%2BDaily

Vitamin C shows eyes & brain health potential: Study
By Stephen Daniells, 18-Jul-2011

One of the nutrition industry's biggest sellers – vitamin C – may help
nerve cells in the eye to function properly, says a new study that suggests
the vitamin may also be important for brain function, too.

The "surprising discovery" by researchers Oregon Health & Science
University indicates that vitamin C may be needed for correct functioning of
retinal cells, which in turn may have implications for the central nervous
system.

In order for retinal cells to function properly, "we found that cells need
to be 'bathed' in relatively high doses of vitamin C, inside and out,"
explained Henrique von Gersdorff, PhD, a senior scientist at OHSU's Vollum
Institute and a co-author of the study.

"Because the retina is part of the central nervous system, this suggests
there's likely an important role for vitamin C throughout our brains, to a
degree we had not realized before."

According to findings published in the Journal of Neuroscience, this new
research used goldfish retinas, which the researchers claim have the same
overall biological structure as human retinas.

Eye health
The dietary supplement and functional food market for eye health is being
driven by several major forces: An aging population, unhealthy diets, an
increased demand for natural ingredients and rising healthcare costs.

Most of the science in this area has focused on the macula – a yellow spot
of about five millimeters diameter on the retina – and a corresponding
condition called age-related macular degeneration (AMD).

The yellow color is due to the content of the carotenoids lutein and
zeaxanthin, which we derive from the diet, and these two nutrients dominate the
$138m US eye health ingredients market, according to Frost & Sullivan (2008
data).

In addition to lutein and zeaxanthin, ingredients such as astaxanthin,
beta-carotene, and bilberry extracts, as well as the vitamins A, C and E, are
also included in eye health formulations.

Putting the C in CNS
The new research indicates that vitamin C may not only benefit the eye,
but have wider implications for the functioning of the central nervous system
(CNS).

According to the OHSU scientists, the benefits revolve around special
receptors in the retina and brain called GABA-type receptors, which reportedly
modulate the rapid communication between brain cells by acting as an
inhibitory 'brake' on excitatory neurons in the brain.

When vitamin C is no longer present, the OHSU researchers report that
these receptors stopped functioning properly.

Vitamin C reservoir
Dr von Gersdorff and his co-workers note that the function of vitamin C in
the brain is not well understood. However, vitamin C stores in the brain
are known to be the last to be depleted in times of vitamin C deprivation,
they added.

"Perhaps the brain is the last place you want to lose vitamin C," he
said.

Vitamin C deficiency results in the condition called scurvy, and one of
the common symptoms of which is depression. The researchers postulated that
their new findings may help explain this observation.

The findings may also have implications for other diseases that are caused
by malfunctioning nerve cells in the retina and brain, like glaucoma and
epilepsy, said the researchers

"Maybe a vitamin C-rich diet could be neuroprotective for the retina –
for people who are especially prone to glaucoma," von Gersdorff said. "This
is speculative and there is much to learn. But this research provides some
important insights and will lead to the generation of new hypotheses and
potential treatment strategies."

Source: The Journal of Neuroscience
Volume 31, Issue 26, Pages 9672-9682, doi:10.1523/JNEUROSCI.5157-10.2011
"Allosteric Modulation of Retinal GABA Receptors by Ascorbic Acid"
Authors: C.I. Calero, E. Vickers, G. Moraga Cid, L.G. Aguayo, H. von
Gersdorff, D.J. Calvo

[Non-text portions of this message have been removed]

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