to investigate the role of metals in the regulation of the ontogenic expression of rat liver metallothionein ( mt ) mrna , the concentrations of zinc , mt and mt mrna were determined in livers of fetal and newborn rats from dams which were fed with a control or zinc-deficient or copper-deficient or iron-deficient diet from day 12 of gestation .
C0009968
copper
C0032961
gestation