Abstract
Effects of low level lead (Pb) exposure on the time-dependent organ-tissue distribution of zinc (Zn), iron (Fe), copper (Cu), and calcium (Ca) were investigated in the neonatal rat. Pups were exposed to Pb acetate (50 mg/kg) via intragastric intubation at 3-d intervals from day 6 postpartum to day 18. This level of Pb exposure had no significant effect on body weight. Exposure to Pb resulted in an alteration of the normal, time-dependent organ distribution of the essential elements and significantly lower concentrations of Zn were found in brain, liver, kidney, and femur of Pb-treated animals.
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