What is the mechanism by which these cations cause cancer?
Have a look at:
OK...so from this, the short answer appears to be: (1) Ni+2 catalyzes reactions that create reactive oxygen species (peroxide, superoxide). (2) inhibits excision-repair of DNA. (3) cause gene silencing (more methylation of histones, less acetylation).
Wow, I had no idea nickel did all this...
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