Corpus StriatumChronic DiseaseMultiple SclerosisDopamine3,4-Dihydroxyphenylacetic AcidBrainAcute DiseaseReceptors, DopamineMagnetic Resonance ImagingBerberineCorpus LuteumSubstantia NigraCorpus CallosumRats, Inbred StrainsNeostriatumRats, Sprague-DawleyNeuronsAgenesis of Corpus CallosumReceptors, Dopamine D2Basal GangliaOxidopamineRacloprideHuntington DiseaseDopamine Plasma Membrane Transport ProteinsReceptors, Dopamine D1Caudate NucleusDopamine AntagonistsCorpora AllataTyrosine 3-MonooxygenaseDopamine and cAMP-Regulated Phosphoprotein 32MicrodialysisBehavior, AnimalParkinson Disease, SecondaryRewardHomovanillic AcidDopamine AgentsNeural PathwaysPenisDopamine AgonistsQuinolinic AcidAmphetamineCerebral CortexLevodopaDopamine Uptake InhibitorsSalicylamidesMethamphetamineParkinsonian DisordersTropanesCorpus Luteum MaintenanceMotor ActivityHaloperidolCocaineNerve Tissue ProteinsDisease Models, AnimalLuteolysisNucleus AccumbensParkinson DiseaseImmunohistochemistryPutamen1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineProgesteroneTime FactorsMPTP PoisoningBenzazepinesGlobus Pallidus