[Effect of an inhibitor of alpha-secretase metabolizing amyloid precursor protein on memory in rats].
Copyright policy )[Effect of an inhibitor of alpha-secretase metabolizing amyloid precursor protein on memory in rats].
Intracortical administration of 10(-4) M batimastat, a specific inhibitor of one of metalloproteinases metabolizing amyloid precursor protein, namely alpha-secretase, to adult rats resulted in a decrease in the number of correct runs in a one-level 8-arm maze down to 92.78 +/- 1.03% of the control values (p < 0.01) already 60 min after an injection. The effect of a single injection of the inhibitor to adult rats did not have a prolonged character. However, injections of batimastat into the cortex of brain hemispheres of rats during early postnatal ontogenesis (5th and 7th days after birth) resulted in considerable deterioration of 8-arm maze orientation of these animals at adult age (90.92 +/- 2.21% of correct runs, p < 0.001) compared to control animals. The findings suggest an important role of alpha-secretase in memorization. A possible role of alpha-secretase in memory and pathogenesis of Alzheimer's disease is discussed.
Male, Phenylalanine, Thiophenes, Rats, Amyloid beta-Protein Precursor, Memory, Endopeptidases, Animals, Protease Inhibitors, Amyloid Precursor Protein Secretases, Rats, Wistar, Maze Learning
Male, Phenylalanine, Thiophenes, Rats, Amyloid beta-Protein Precursor, Memory, Endopeptidases, Animals, Protease Inhibitors, Amyloid Precursor Protein Secretases, Rats, Wistar, Maze Learning
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