Effect of aluminum on hematopoiesis after intraperitoneal exposure in rats

The experiments were performed on female Wistar rats that received aluminum chloride every day intraperitoneally, 4 mg Al/kg for 3 weeks. In the blood selected morphological factors and delta-aminolevulinic acid dehydratase activity (ALA-D) were investigated. In the kidney and liver ALA-D, delta-aminolevulinic acid synthase (ALA-S), and heme oxygenase activity were also determined. After aluminum chloride administration the most sensitive indicator was an increase of heme oxygenase activity in the liver and a decrease in iron levels in the serum of rats. Aluminum also increased ALA-S activity in the kidney and liver of rats. No changes of ALA-D activity in the liver, the kidney, and the blood were observed. The decreasing of hemoglobin, hematocrit, mean corpuscular hemoglobin mass, and mean corpuscular hemoglobin concentration was noted after 3 weeks of exposure.