Re: Fw: Silica Exposure Appears Causally Linked to Kidney Disease

[Guest guest]

This is interesting. I still question whether the

silica contained in vitamins/supplements can be

dangerous to us. I know that it is just used as a

preservative, and is such a small amt, but silica is

silica, and when you look at taking something which we

are so sensitive to, I can't help but wonder if this

small amt can have deleterious effects on us.

Especially when you think that some of these

vitamins/supplements need to be taken 3-4x/day.

Overtime I would think that the silica amts would build

up in us and have the same effects that caused us to be

so sick in the first place. And the reason it would

build up is because our livers don't function too well

and can't process even the smallest amt of silica.

Does anyone else have any ideas on this theory??? Ever

since I started taking supplements, I have been sure to

stay away from anything that contains silica as a

filler/preservative. It is sometimes hard to find

products without silica, but they're out there.

e

> From: " Ilena Rose " <ilena@...>

> Sent: Sunday, July 15, 2001 9:43 PM

> Subject: Silica Exposure Appears Causally Linked to Kidney Disease

>

>

>

> http://internalmedicine.medscape.com/reuters/prof/2001/07/07.10/20010709epid

> 002.

> > html

> >

> > Silica Exposure Appears Causally Linked to Kidney Disease

> > ------------------------------------------------------------------------

> >

> > WESTPORT, CT (Reuters Health) Jul 09 - While exposure to silica has been

> > associated with kidney disease previously, findings from a study conducted

> > by the Centers for Disease Control and Prevention (CDC), Atlanta, suggest

> > that a causal relationship may exist.

> >

> > Dr. Steenland and colleagues, from the CDC's National Institute for

> > Occupational Safety and Health, in Cincinnati, Ohio, assessed renal

> > disease morbidity and mortality and arthritis mortality in a group of 4626

> > silica-exposed workers in the industrial sand industry.

> >

> > Compared with a cohort from the general US population, the workers had an

> > excess mortality rate from acute renal disease (standardized mortality

> > ratio = 2.61), chronic renal disease (SMR = 1.61), and arthritis (SMR =

> > 4.36). The incidence of end-stage renal disease, particularly

> > glomerulonephritis, was also in excess of what would be expected in the

> > general population. Furthermore, the incidence of end-stage renal disease

> > increased as the cumulative exposure to silica increased.

> >

> > " These data represent the largest number of renal cases observed to date

> > in a cohort study of subjects with well-documented exposure to silica, "

> > the authors note in the July issue of Epidemiology.

> >

> > While the excess in glomerular disease cases suggests a possible immune or

> > autoimmune mechanism, it is possible that silica may be directly toxic to

> > the kidney, the researchers point out.

> >

> > " We found positive exposure-response trends...based on either morbidity or

> > mortality data, " the investigators note. " These exposure-response trends

> > tend to confirm a causal relation between silica exposure and subsequent

> > renal disease, " they state.

> >

> > Epidemiology 2001;12:405-412.

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