LactotrophsPituitary Gland, AnteriorProlactinNeuronsSomatotrophsThyrotropin-Releasing HormoneThyrotrophsPituitary GlandNeurons, AfferentHyperprolactinemiaMotor NeuronsGrowth HormoneCells, CulturedTranscription Factor Pit-1DopamineAction PotentialsReceptors, Dopamine D2MoltingSulpirideMembrane PotentialsCalciumCadmium ChlorideRats, WistarElectrophysiologyRats, Sprague-DawleyExocytosisPatch-Clamp TechniquesImmunohistochemistryTime FactorsPotassium ChannelsRadioimmunoassayEstrous CycleDose-Response Relationship, DrugDopaminergic NeuronsPotassiumEstradiolCyclic AMPGABAergic NeuronsHippocampusSynapsesElectric StimulationBodily SecretionsNerve Tissue ProteinsAxonsGanglia, SpinalSynaptic TransmissionSensory Receptor CellsDendritesSecretory RateOlfactory Receptor NeuronsIntestinal SecretionsBacterial Secretion SystemsCholinergic NeuronsCerebral CortexSpinal Cordgamma-Aminobutyric AcidNeurons, EfferentAnimals, NewbornMice, Inbred C57BLNeural InhibitionNeuropeptidesMotor Neuron DiseaseModels, Neurological