This article from last fall might be of interest;

Frigerio R, et al. Education and occupations preceding Parkinson
disease: A population-based case-control study.  Neurology.
2005;65:1575–1583.

This is a link to the abstract.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?CMD=search&DB=pubmed





Quoting Randy L Vinecore <[log in to unmask]>:

> Welders (from the mangaqnese) are one such example,
> Physicians/dentists, farmers, for some reason also.
> \Randy
>
>
> Games to entertain your brain.
> http://www.stargraphics.com
>
> Star Graphics Corp
> 10943 S Forest Ridge Ln
> Oregon City, OR 97045
> ----- Original Message -----
> From: "jcu" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, June 23, 2006 11:02 AM
> Subject: Re: Manganese, well water, and PD
>
>
> >I appreciate your advice regarding magnesium oxide, Arnie!
> > Yes, I have stopped using it...But I wonder...are there
> specific
> > professions/occupations that show a high incidence of pd
> > that you are aware of (like, say, potters or x-ray technicians,
> > etc.)? Assuming there is an environmental trigger...
> >
> > Interesting comments about controlled variables, as well.
> >
> >
> > Regardless,
> > thanks for your comments.
> >
> > joan
> >
> > As a footnote,
> > what is interesting about your post is that I received it
> > even though I did not receive my own post to the list
> > (the one you responded to)...not sure why.
> >
> >
> >
> > ----- Original Message -----
> > From: "Arnie Kuzmack" <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Friday, June 23, 2006 4:46 AM
> > Subject: Re: Manganese, well water, and PD
> >
> >
> >>> Just to let you know, manganese oxide (in powder form)
> >>> is a glaze ingredient used by potters. I have worked alot
> with
> >>> clay and used to use as a colourant on clay sculptures. I
> would
> >>> drop an arbitrary amount of powder into water and then dip a
> >>> sponge into this solution to dab onto fired clay. The
> material
> >>> data sheet clearly states that it can be absorbed directly
> >>> through
> >>> the skin into the nervous system. This fact has caused some
> >>> potters to stop using it.
> >>>
> >>> I do not have pd but always wonder if using it has put me at
> >>> risk.
> >>
> >> I have not done a study of the literature, but, as a
> precaution,
> >> it can't hurt to stop using it.  Toxicologically, dermal
> >> absorption is very different from ingestion.  With ingestion,
> the
> >> digestive tract functions to control the degree of absorption
> >> into the blood.  With dermal absorption, it goes directly into
> >> the blood.
> >>
> >>> Juut as an aside, my mother did have pd and most of her adult
> >>> life
> >>> craved liver which of course is high in iron. Is there any
> >>> correlation
> >>> to iron-rich diet from organ meets and pd?
> >>
> >> The study cited by Maryse (attached to your message) purports
> to
> >> show a correlation.  However, it is unclear what other
> variables
> >> were controlled and what lead to the high intake levels of
> iron
> >> and managanese.  See my other comments below.
> >>
> >> As is frequently the case with this sort of study, we do not
> know
> >> whether the high intakes played a role in causing the disease
> or
> >> whether, alternatively, a predisposition to PD caused the
> craving
> >> for liver, or whether some other factor palyed a role in
> causing
> >> both.
> >>
> >> Therefore, we can't say that your mother would have been
> better
> >> off to resist her craving.  We just don't know.
> >>
> >>
> >>>>>> [Arnie]  Ingested manganese is an essential nutrient.
> There
> >>>>>> is very
> >>>>>> little evidence of adverse neurological effects of
> ingested
> >>>>>> manganese.
> >>>>>
> >>>>>
> >>>>>  [Maryse] it could be risky:
> >>>>>
> >>>>>  [Maryse]
> >>>>> http://www.neurology.org/cgi/content/abstract/60/11/1761
> >>>>
> >>>>  [Arnie] Before drawing any conclusions, one would want to
> >>>> know more about
> >>>> these populations and, in particular, what led some of them
> to
> >>>> consume a lot more iron and manganese than the rest.  Was
> >>>> there
> >>>> something about their sociological or other lifestyle
> >>>> characteristics that would occur disproportionately among
> >>>> people
> >>>> in this area who consume larger amounts of iron and
> manganese
> >>>> than others?
> >>>>
> >>>>  [Arnie] While I don't have the full article, the abstract
> >>>> does not
> >>>> mention controlling for other variables, not even smoking
> and
> >>>> alcohol consumption (known to be related to PD risk) or
> >>>> correcting for multiple comparisons (where testing a large
> >>>> number
> >>>> of variables can lead to false positives.)
> >>
> >>
>
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> >
> >
>
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