article 4 nonhuman 4 1-Methyl-3-isobutylxanthine 2 3',5'-Cyclic-Nucleotide Phosphodiesterase 2 4 (3 butoxy 4 methoxybenzyl) 2 imidazolidinone 2 Acetylcholine 2 Amylomyces rouxii 2 Animals 2 Centrifugation, Density Gradient 2 Chrna9 protein, rat 2 Cyclic AMP 2 Cyclic GMP 2 Dipyridamole 2 Fungi 2 Gene Expression 2 Hair Cells, Outer 2 Hydrolysis 2 Indoles 2 Ion channels 2 K+ channels 2 Linopirdine 2 Membrane Potentials 2 Mucor 2 Nicotinic Acids 2 Nicotinic receptors 2 Oocytes 2 Papaverine 2 Patch-Clamp Techniques 2 Potassium Channel Blockers 2 Protein Subunits 2