3-hydroxy-2,19-epoxypregnan-20-one 2 3-hydroxy-6,19-epoxypregn-4-ene-20-one 2 3alpha hydroxy 2beta, 19 epoxy 5alpha pregnan 20 one 2 3alpha hydroxy 5alpha pregnan 20 one 2 3alpha hydroxy 6,19 epoxypregn 4 ene 20 one 2 4 aminobutyric acid A receptor 2 4 aminobutyric acid A receptor stimulating agent 2 Animals 2 Article 2 Autoradiography 2 Bicyclo Compounds, Heterocyclic 2 Binding, Competitive 2 Cerebral Cortex 2 Cerebral cortex 2 Flunitrazepam 2 GABA-A Receptor Agonists 2 GABAA receptor 2 Hippocampus 2 Male 2 Muscimol 2 Neurosteroids 2 Pregnanolone 2 Protein Binding 2 Rats, Sprague-Dawley 2 Receptors, GABA-A 2 Sprague Dawley rat 2 Sulfur Radioisotopes 2 Synthetic steroids 2 Tritium 2 analogs and derivatives 2