Animals 6 nonhuman 6 priority journal 6 Female 4 Hyperpolarization-activated cation current 4 Leptin 4 Male 4 Neurons 4 Patch-Clamp Techniques 4 Pedunculopontine Tegmental Nucleus 4 Rats 4 Rats, Sprague-Dawley 4 animal 4 animal cell 4 arousal 4 article 4 controlled study 4 drug effects 4 female 4 leptin 4 male 4 n methyl dextro aspartic acid receptor 4 patch clamp 4 pedunculopontine tegmental nucleus 4 physiology 4 protein function 4 rat 4 sodium current 4 AMPA receptor 2 Action Potentials 2