lyndacarol wrote:...but already it raises old questions. The first one concerns the Lapps or Lapplanders. They live VERY far north in Scandinavia with very little sunshine (i.e. vitamin D); caribou makes up the majority of their diet; yet, MS is virtually nonexistent among these people. Why is that?
peekaboo wrote:Ru -The fact that MS is rare around the exuator is connected with the sunshine only, isn´t it?
not just sunshine but civilization environmental toxins industry etc.
The marked increase of MS incidence and the change of MS clinical phenotype over time cannot be explained by ascertainment bias only,
Geochemical studies in these areas have identified the main sources of contamination to be from drainage of flooded mines, mining wastes and tailings abandoned in settling ponds, and exposed ores. The transport of the fine materials eroded from the tailings ponds contributes to spreading pollution over larger areas downstream. Concentrations of Pb, Cd and Zn in the streams draining the mining area (up to 1, 1.7, and 1000 mg l–1, respectively) are several orders of magnitude higher than those observed in rivers outside the mining areas in Sardinia
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