[grey_whiskers]

Interesting analogy here.

Cheers!

[Myrddin]

The articles seem to agree about Cu deficiency and molybdenum toxicity. I think Purdey did a better job of describing the mechanism i.e. Cu deficiency allow molybdenum and manganese (trivalent) to bind sites where copper should be present. The other paper seems to claim that the presence of the other heavy metals is causing copper deficiency. I think they have the cause and effect confused.

Purdey studied the incidence of Kuru (CWD in humans) and found the tribal areas where this was a problem had a copper deficient soil. Further, the tribal members found a plane wreck and used the metals from the plane to make eating utensils. That drove up their exposure to manganese and molybdenum. That's a fairly good set of environmental evidence that manifested itself in the mechanisms observed as TSE.