METHODS:Non-essential metals, Cd, Pb, As, and essential metals, iron (Fe), zinc (Zn), selenium (Se), copper (Cu), calcium (Ca), magnesium (Mg), and manganese (Mn) were measured in maternal whole blood obtained during the first trimester using inductively coupled plasma mass spectrometry.
Today, we inherit these as the essential metals.
Their ability to accumulate high concentrations of metals was observed for both essential nutrients, such as copper (Cu), iron (Fe), zinc (Zn), and selenium, as well as non-essential metals, such as cadmium (Cd), mercury (Hg), lead (Pb), aluminum (Al), and arsenic (As) (Sahayaraj et al. 2012).
MT's are an ubiquitous class of metal-binding proteins that function in the homeostasis of essential metals, as well as serving a detoxification role by sequestering toxic metals.
Metallothioneins are ubiquitous metal-binding proteins that function in the homeostasis of essential metals, such as zinc and copper, as well in detoxification mechanisms by sequestering toxic metals such as cadmium, lead, and mercury [ 73, 74].
Metallothioneins (MTs), a superfamily of cysteine-rich proteins, perform multiple functions, such as maintaining homeostasis of essential metals, detoxification of toxic metals and scavenging of oxyradicals.
RNA-containing structures from the PDB include such essential metals as Zn, Mn and Co, with Zn seen in 64 structures, more than any other transition metal.
P-gp overexpression could potentiate the toxicity of chelators if multidrug-resistant cells are deprived of essential metals as a result of the efflux activity.
This localised copper-deficiency state appears to be specific for copper as opposed to other essential metals and occurs in animals that do not display signs of systemic copper homeostasis.
