On September 5, 2006, sciencedaily.com posted a report on its site that contained the following:
For decades, scientists have known that chronic exposure to high concentrations of the metal manganese can cause movement abnormalities resembling symptoms of Parkinson’s disease, but apparently without the same neuron damage characteristic of Parkinson’s patients... animals exposed to manganese do not release dopamine when stimulated, suggestive of a dysfunctional dopamine system even though the neurons do not show the damage present with Parkinson’s disease.
Source:
http://www.sciencedaily.com/releases/2006/08/060828211611.htm
About ten years ago, Mark Purdey was working on a hypothesis for "Mad Cow disease" that excluded the possibility that this "disease" was caused by infectious prions in the cows' food (for example, see Med-Hypotheses. 1996 May; 46(5): 445-54). This recent sciencedaily report is interesting not only because it appears to suppport Purdey's claim that too much maganese and too little copper can cause "Mad Cow" like symptoms, but also because there is the statement:
"For decades, scientists have known that chronic exposure to high concentrations of the metal manganese can cause movement abnormalities resembling symptoms of Parkinson’s disease..."
If this is so, why hasn't a "Mad Cow disease expert" investigated this possibility. Why is it that a farmer (Purdey) had to be the one to invest his own money to demonstrate that there was strong evidence for the manganese overload notion? This is yet another example of the disorganized and nonsensical character of much of the biomedical establishment that exists in "advanced" nations these days. |
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