This study was carried out on male Wistar rats. The bone marrow activities of acetylcholinesterase (AchE-EC.3.1.1.7.), glutathione reductase (GR-EC.1.6.4.2.) and glucose-6-phosphate dehydrogenase (G6PD-EC.1.1.1.49.) were determined as affected by aluminium. The present experiments have revealed that within the first days there will be an increase in enzyme activity in the bone marrow. Simultaneously a decline in the activity of bone marrow could be observed which occurred later in the first course of the experiment.
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