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Korean Journal of Preventive Medicine 1983;16(1): 19-24.
Combined Effects of Iron and Zinc on Accumulation of Lead in Some Organs of Rats.
Hyung Taek Ohm, Dong Bin Song, Chul Whan Cha
Department of Preventive Medicine and Institute for Environmental Health College of Medicine, Korea University, Korea.
ABSTRACT
In order to study the effects of iron and zinc on the lead poisoning of rats, lead with iron and zinc, or lead alone were administered orally to a total of 98 adult rats of Sprague-Dawley Species. The concentrations of lead, zinc, and iron were measured by atomic absorption spectrophotometer at every 20 days intervals of 20th, 40th, 60th, 80th and 120th day as a final measurement. Those datas were analysed and compared with those of control groups. The results were summarized as follow; 1. The concentration of lead in blood, bone, and liver tissues kept increasing in case of lead exposure group whereas it started decreasing at 60-80th day when concentration of zinc started increasing in case of combined exposure group. However, in kidney tissue, the concentration of lead in combined exposure group kept increasing up to the end of observation showing special high concentration at the final measurement at 120th day. 2. Concentration of zinc in blood and liver tissues had increased from 60-80th day in case of combined exposure group. 3. Concentration of iron in blood showed decreasing from 44.15+/-9.67 to 32.44+/-2.69 microgram/ml in case of lead exposure group, whereas it showed constant level of 47.50~45.65 microgram/ml. However, in liver tissue it kept constant as control did from 40th to 60th days, but from 100th day on it started increasing to show much higher concentration than control.
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