Corpus StriatumChronic DiseaseMultiple Sclerosis3,4-Dihydroxyphenylacetic AcidDopamineAcute DiseaseBrainMagnetic Resonance ImagingReceptors, DopamineBerberineCorpus LuteumCorpus CallosumSubstantia NigraRats, Inbred StrainsAgenesis of Corpus CallosumRats, Sprague-DawleyNeuronsNeostriatumCorpora AllataBasal GangliaPenisReceptors, Dopamine D2Corpus Luteum MaintenanceOxidopamineLuteolysisPutamenProgesterone