Mercury poisoning/ Autism link study - Mothering Forums

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Old 10-15-2007, 08:08 PM - Thread Starter
 
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Does anyone have any thoughts or info as to the legitimacy of this study?
http://www.homefirst.com/urine_testi...poisoning.html
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Old 10-15-2007, 08:36 PM
 
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Old 10-15-2007, 10:04 PM
 
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I can believe it. But the majority of "mainstream" people will not. They only believe things from the FDA or CDC :

My DH works in a field that tests smoke stacks from power plants, manufactoring plants, etc, pretty much anything that pollutes our air and knows all too well what mercury can do to the human body if exposed. Severe brain damage is one of them.

single mommy to identical twin girls (3/06) Non-traditional mama just : through life.
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Old 10-16-2007, 12:24 PM - Thread Starter
 
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Old 10-16-2007, 02:26 PM
 
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Old 10-16-2007, 03:39 PM
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I am awaiting my full-text but considering it is written by the Geiers, I wouldn't put much stock into it.

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Old 10-16-2007, 04:18 PM
 
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What's the problem with the Geiers?

Crunchy check list:  2 homebirths (one accidental UC!), co-slept, no CIO, cloth diapers, home/un school, raw milk drinker (!) I am a walking cliche!! I even blog and knit...
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Old 10-16-2007, 04:34 PM
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Originally Posted by lauradbg View Post
What's the problem with the Geiers?
You know all the criticisms that many of you have of pharma greed and FDA accomplice (some of which I do actually share)? Well that and much much more can be said of the Geiers and they are far more nefarious and dangerous. An acquaintance of mine says of the Geiers, "Geier rhymes with liar and means vulture (in German)".

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Old 10-16-2007, 04:50 PM
 
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How, where and when are they "far more nefarious and dangerous"? You're not answering my question. You're making allusions that they're not credible. Could you please outline that for me. : I don't know and would like to know.

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Old 10-16-2007, 05:11 PM
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Have you read their previous 'publications'? Are you familiar with their most recent venture with Lupron (chemical castration) and chelating autistic children? Are you familiar with their sleazy IRB practises? Are you aware that their 'publications' are written to bolster their professional vaccine court witness cache?

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Old 10-16-2007, 05:28 PM
 
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No. I'm not aware of any of that. As I clearly said, "I don't know and would like to know." So, could you please explain? Otherwise, could you please not cast aspersions?

And then maybe you could comment on the actual study...

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Old 10-16-2007, 06:03 PM
 
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I am awaiting my full-text but considering it is written by the Geiers, I wouldn't put much stock into it.
Hey, that type of ad hominem statement is unnecessary. Unless you're accusing the Geiers of outright fraud, it'd be more productive to criticize the data, not the person. Wouldn't it be more fun to poke at the science? Sounds like you're getting a copy but if not, I can email it to you. I haven't read it yet so I can't really comment. I think the usual arguments will probably apply, though: They're observing something in children who are already autistic so there's no way to know which came first. It may seem quite a coincidence that the marker being associated with autism is mercury-related, but until prospective research is done (paired sampling), it probably can't be ruled out.
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Old 10-16-2007, 06:24 PM
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Hey, that type of ad hominem statement is unnecessary. Unless you're accusing the Geiers of outright fraud, it'd be more productive to criticize the data, not the person. Wouldn't it be more fun to poke at the science? Sounds like you're getting a copy but if not, I can email it to you. I haven't read it yet so I can't really comment. I think the usual arguments will probably apply, though: They're observing something in children who are already autistic so there's no way to know which came first. It may seem quite a coincidence that the marker being associated with autism is mercury-related, but until prospective research is done (paired sampling), it probably can't be ruled out.
Glad to see your sense of humour has returned. I should get it in a couple of days but hey, if you have a copy available, I'll take you up on it, Thank-you. See how easy it is to cut down on your reading load by author reputation?

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Old 10-18-2007, 01:17 AM
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OK, Time to poke fun at the 'science'. This is not a prospective study; the subjects already had the outcome (ASD) with a concurrent exposure (mercury).

Their samples were sent to an outside laboratory; so other investigators cannot verify the methods and there is too much test variability due to instrument calibration and different technicians.

Many of the Geiers' references and therefore hypothesis is based upon chronic, low and high level occupational exposure to Hg (primarily vapour) which is fine as long as they don't overreach the data results.

The heme pathway is sensitive to inhibition by both organic and inorganic agents and thus the atypical porphyrinuria pattern is not exclusive to Hg exposure alone and the testing is not standardised to allow for the distinction and certainly cannot differentiate Hg species.

The controls. They are not matched as is claimed and are not robust enough; not matched for exposure and the controls were claimed to be siblings of ASD patients, not siblings of the study patients.

Table 2: I guess they could have achieved statistical significance somehow, somewhere but the table is sloppy and suspect e.g. they report some means with 1 significant figure but the standard deviations with 2. How can this be? The size of the standard deviations as compared to the means suggests more variation within the groups than between the groups.

I think that selection bias was required to even perform this study rather than control for it. Chelated patients had similar porphyrin levels as controls but they don't know or report what the pre-chelation levels were and even if chelation even had an effect.

The discussion was a predictable association with previous Geier 'studies' and the usual suspects with vanity press articles along with cherry-picking select interpretations from some legitimate studies. There is no association with vaccines so I don't know where that notion came from. All in all, a poorly done and predictable study and is nothing more than an entry on their CVs.

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