Yeah, I really couldn`t in good faith argue to my last breath that many of these presumed neurotoxic metals had any specific
redeeming qualities.
I just wanted to hedge a bit on whether the inorganic metal (copper-2) insight would apply broadly to other
metals with different ionic forms. There is a long list of metals that are neurotoxic: Arsenic, lead, methylmercury, etc. .
I was just not as clear about for example iron. Is iron-2 in any neurotoxically way worse than iron-3?
It is interesting to look at the oxidation states of the metals in a periodic table and consider the potential
neurotoxicity.
http://www.vertex42....table_color.pdf
Notably the well behaved metals typically only have a single oxidation state.
Consider sodium, magnesium, potassium, calcium and zinc.
At the same time, aluminum with only one oxidation state still has been shown to have
neurotoxic potential.
Also of interest is the allowable intakes of the non-transtition metals versus the transition metals.
For example, allowable calcium intake is over 10,000 times higher than that of molybdenum.
I am not sure whether the neurotoxicity of different metals could be guessed by simply eyeballing
the periodic table, though it does appear to offer some insights. There are a range of other metals
that could be investigated for potential toxicities including gold, silver platinum, palladium, tungsten,
etc. . Fortunately many of these other metals would likely not be present in the human tissues in
significant quantities.
On this one I think it would be very sensible to go with the paleodieters. The levels and species of
metals in our pre-modern ancestors would be a much better guide than trying to work through all of the
potentially dangerous new age metals that are completely removed from any relevant genetic selection time frame.
When i look at the world map for metals imports, I get this sickening feeling that one could simply overlay global
dementia rates and have a fair amount of correlation.
https://en.wikipedia.org/wiki/Metal
This has a personal meaning for us as our loved one is now coping with dementia.
There might be a metals connection for their dementia as a homozygous TCGA haplotype
in the ATP7B gene is present as well as the HFE (hemochromatosis {iron gene}) C282Y mutation.
http://www.ncbi.nlm....82274/table/T3/
Other families members have various combinations also including the TF (Transferrin {iron gene}) C2 mutation.
By themselves these mutations have not been shown to substantially increase Alzheimer's risk.
However, one does begin to wonder whether enough of these mutants were present in a specific
environment enriched with formally exotic metal species dementia might develop.
The million plus person data set at 23andme might be a great place to start to try and answer some of
these questions. Searching for those with rare combinations (say 1 in 10,000) enriched with metals
variants might shed light on the risk of metals for some of the more vulnerable people in the
community. They could be the canaries in the coal mine for the rest of the population.
Due to our loved ones dementia it has been necessary to use enteral feeding. After reading some of the literature
it was found that it has been known for some time that iron levels in some enteral feeds are not at safe levels for
those with neurodegenerative illnesses. The research was done specifically in ALS. We contacted our medical
team about this and it turned out that there is no available alternative for the feed that we use.
Here are the amounts of metals in our loved one's enteral feeding solution bottle:
sodium 112
potassium 180
magnesium 27
calcium 100
chromium 0.012
molybdenum 0.008
manganese 0.2
iron 1.2
copper 0.13
zinc 1.7
selenium 0.007
iodine 0.016
The story of metals and neurodegeneration is one I would be very interesting in reading.
The entire narrative would probably be a cautionary tale in the startling recklessness and uneducatable
essence of humanity. It would be sort of a Jackass on the truly epic scale of all humanity.
Possibly the Roman empire experience with mental illness caused by metals would be the logical starting point.
It is possible though that there would even be references of metals' neurodegeneration predated that debacle.
Perhaps at the start of the copper age itself?
Yet, there would also be so many examples that could be included from the modern day.
It is astonishing!
It is not that long ago that cars actually had lead added to the fuel to prevent knocking.
It was the equivalent of putting a lead smelter on every major intersection.
The current standard is to strive for a zero lead level in the population.
Apparently when aluminium was first produced it was more expensive than gold and was considered a
luxury item.
This would surely be a good read. Perhaps we could start a Kickstarter campaign to fund an author to write that book!
In the meanwhile, i would be happy if a researcher could explain how the other essential metals listed above from the
enteral feed container might also be interpreted under the organic-inorganic distinction (analogously to copper).
Edited by mag1, 28 December 2015 - 10:04 PM.