
The role of allopregnanolone on immature cerebellar granule cells (CGC) proliferation was studied. Allopregnanolone (0.1-1 microM) increased [(3)H]thymidine incorporation and cell number determined by neuronal counting and by an MTT colorimetric assay. The effect of the neurosteroid was completely prevented by preincubation with 10 mM MgCl(2), 10 microM nifedipine, 10 microM picrotoxin or by 50 microM bicuculine. We conclude that ALLO affects cerebellar neurogenesis by increasing calcium influx through voltage-gated calcium channels and GABA(A) receptors activation.
GABA A RECEPTOR, Pregnanolone, CALCIUM, NEUROGENESIS, Rats, Sprague-Dawley, Chloride Channels, https://purl.org/becyt/ford/1.6, Cerebellum, Animals, https://purl.org/becyt/ford/1, CEREBELLUM, Cells, Cultured, Cell Proliferation, Neurons, PROLIFERATION, Receptors, GABA-A, Rats, Animals, Newborn, ALLOPREGNANOLONE, Calcium, Steroids, Calcium Channels, Excitatory Amino Acid Antagonists
GABA A RECEPTOR, Pregnanolone, CALCIUM, NEUROGENESIS, Rats, Sprague-Dawley, Chloride Channels, https://purl.org/becyt/ford/1.6, Cerebellum, Animals, https://purl.org/becyt/ford/1, CEREBELLUM, Cells, Cultured, Cell Proliferation, Neurons, PROLIFERATION, Receptors, GABA-A, Rats, Animals, Newborn, ALLOPREGNANOLONE, Calcium, Steroids, Calcium Channels, Excitatory Amino Acid Antagonists
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