Edouard Bastarache Inc. on thu 9 sep 04
Hello all,=20
glaze metal leaching may not always be a handicap !!!
Zinc Shortage May Underlie Serious Vision Problem
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By Megan Rauscher=20
NEW YORK (Reuters Health) - Scientists have learned that zinc plays an =
important role in the normal function of rhodopsin, a protein in the eye =
implicated in retinitis pigmentosa, a hereditary disease that often =
leads to blindness.=20
Without binding to zinc, "rhodopsin is very unstable, a feature that is =
typical of retinitis pigmentosa," Dr. John Hwa from Dartmouth Medical =
School in Hanover, New Hampshire, told Reuters Health. "This has =
implications for therapy for retinitis pigmentosa where zinc =
concentration in the retina may be important."=20
The researchers identified a zinc-binding site in rhodopsin, according =
to the report in the Journal of Biological Chemistry. Some cases of =
retinitis pigmentosa appear to occur because mutations near the site =
prevent zinc from binding properly.=20
According to Hwa, too little zinc in the body or a mutation in the =
binding site makes rhodopsin function abnormally, resulting in =
degeneration of the retina and eventually blindness.=20
He acknowledged that his team has yet to determine how much zinc is =
needed to prevent this problem.=20
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SOURCE: Journal of Biological Chemistry, August 20, 2004.=20
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Lee Love on fri 10 sep 04
Edouard Bastarache Inc. wrote:
>glaze metal leaching may not always be a handicap !!!
>
>
Eduouard,
Jean and I take a daily zinc suppliment. One benefit is that
it helps keep the body from picking up heavy metals like mercury and lead.
--
Lee in Mashiko, Japan http://mashiko.org
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Rod Wuetherick on fri 10 sep 04
Lee,
Zinc is also essential to prostate health. Men prone to prostitis and other
ailments of the prostate benefit immensely from Zinc supplementation. My own
experience with prostate problems seem to indicate that taking it everyday
does in fact make a difference in how I feel. Zinc is also necessary for the
body in general for fighting infections. There are also a couple of studies
that I found at the time that indicated (I believe one study was in
Switzerland) that Zinc deficiency has been linked to higher incidences of
prostate cancer.
When I was very, very ill three years ago an infectious disease specialist
here in Vancouver insisted that I take Zinc daily for my prostate. That
surprised me!
I believe it is important to keep your daily dose lower than 40Mg as far as
I can remember. I was warned to make sure I wasn't going over the safe limit
and to check my multi-vitamins for Zinc as well.
Zinc is cheap for all the apparent benefits. I didn't know that it helps the
body resist picking up heavy metals. Interesting, thanks for the info!
Everything is possible,
Rod
Eduouard,
Jean and I take a daily zinc supplement. One benefit is that
it helps keep the body from picking up heavy metals like mercury and lead.
Ron Roy on sat 11 sep 04
I can agree that some leaching is more benign that others - and knowing
which is which is an important factor. It also obvious to me that there is
a huge disagreement among toxicologists about what is safe and what are
safe levels.
Zinc is an important supplement but - the dose should be controlled.
To suggest that zinc leaching from a glaze is a viable way to get zinc does
not take into consideration the dose - and how it would be diminished over
time and does not take into account the strength of the acidity of the food
it is next to.
It is not our job to be providing trace elements to our customers - we
should - as much is as possible - be providing stable liner glazes on ware
to be used for eating, cooking and storing foods.
RR
Edouard said .....
"glaze metal leaching may not always be a handicap !!!"
>By Megan Rauscher
>
>NEW YORK (Reuters Health) - Scientists have learned that zinc plays an
>important role in the normal function of rhodopsin, a protein in the eye
>implicated in retinitis pigmentosa, a hereditary disease that often leads
>to blindness.
>
>Without binding to zinc, "rhodopsin is very unstable, a feature that is
>typical of retinitis pigmentosa," Dr. John Hwa from Dartmouth Medical
>School in Hanover, New Hampshire, told Reuters Health. "This has
>implications for therapy for retinitis pigmentosa where zinc concentration
>in the retina may be important."
>
>The researchers identified a zinc-binding site in rhodopsin, according to
>the report in the Journal of Biological Chemistry. Some cases of retinitis
>pigmentosa appear to occur because mutations near the site prevent zinc
>from binding properly.
>
>According to Hwa, too little zinc in the body or a mutation in the binding
>site makes rhodopsin function abnormally, resulting in degeneration of the
>retina and eventually blindness.
>
>He acknowledged that his team has yet to determine how much zinc is needed
>to prevent this problem.
>
>SOURCE: Journal of Biological Chemistry, August 20, 2004.
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
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