2005
Neonatal isolation alters the estrous cycle interactions on the acute behavioral effects of cocaine
Kosten T, Sanchez H, Jatlow P, Kehoe P. Neonatal isolation alters the estrous cycle interactions on the acute behavioral effects of cocaine. Psychoneuroendocrinology 2005, 30: 753-761. PMID: 15919581, DOI: 10.1016/j.psyneuen.2005.03.004.Peer-Reviewed Original ResearchConceptsEstrous stageNeonatal isolationBehavioral effectsNH femalesCocaine dosesNon-handled conditionsLow cocaine dosesCocaine plasma levelsEffects of estrogenVentral striatal dopamineAcute behavioral effectsAbility of cocaineHigher cocaine dosesAcquisition of cocaineAcute behavioral responsesMonoamine levelsStriatal dopamineSerotonin levelsPlasma levelsEstrous cyclicityFemale ratsISO ratsIsolation altersDiestrus stageEstrus rats
2004
Neonatal isolation enhances maintenance but not reinstatement of cocaine self-administration in adult male rats
Zhang X, Sanchez H, Kehoe P, Kosten T. Neonatal isolation enhances maintenance but not reinstatement of cocaine self-administration in adult male rats. Psychopharmacology 2004, 177: 391-399. PMID: 15258719, DOI: 10.1007/s00213-004-1963-y.Peer-Reviewed Original ResearchConceptsAdult male ratsNeonatal isolationMale ratsCocaine-induced reinstatementPR scheduleCocaine dosesExtinguished self-administration behaviorLow cocaine dosesProgressive ratioEarly life stressNon-handled ratsSelf-administration behaviorAcquisition of cocaineDifferent cocaine dosesCocaine-seeking behaviorSelf-administer cocaineReinstatement of cocaineLow dosesRatsCocaineMore cocaineDosesLife stressGroup differencesSeparate groups