2006
The nicotinic antagonist mecamylamine has antidepressant-like effects in wild-type but not β2- or α7-nicotinic acetylcholine receptor subunit knockout mice
Rabenstein RL, Caldarone BJ, Picciotto MR. The nicotinic antagonist mecamylamine has antidepressant-like effects in wild-type but not β2- or α7-nicotinic acetylcholine receptor subunit knockout mice. Psychopharmacology 2006, 189: 395-401. PMID: 17016705, DOI: 10.1007/s00213-006-0568-z.Peer-Reviewed Original ResearchConceptsAntidepressant-like effectsAntagonist mecamylamineNicotinic acetylcholine receptor activityNoncompetitive nAChR antagonist mecamylamineAntagonist dihydro-β-erythroidineΑ7 knockout miceΑ7-nAChR subunitAcetylcholine receptor activityEffects of mecamylamineNAChR antagonist mecamylamineDihydro-β-erythroidineNicotinic antagonist mecamylamineSubunit knockout miceBaseline locomotor activityDose-response studyMethodsAdult miceAntagonist hexamethoniumAntidepressant efficacyAntidepressant responseCentral nAChRsImmobility timeCholinergic transmissionSwim testMecamylamineSuspension test
2001
Nicotine Receptor Inactivation Decreases Sensitivity to Cocaine
Zachariou V, Caldarone B, Weathers-Lowin A, George T, Elsworth J, Roth R, Changeux J, Picciotto M. Nicotine Receptor Inactivation Decreases Sensitivity to Cocaine. Neuropsychopharmacology 2001, 24: 576-589. PMID: 11282258, DOI: 10.1016/s0893-133x(00)00224-4.Peer-Reviewed Original ResearchConceptsPlace preferenceDA turnoverLow doseHigh-affinity nicotinic acetylcholine receptorsMesolimbic DA systemHigh-affinity nAChRsNicotinic antagonist mecamylamineWild-type miceMesolimbic dopamine systemFos-related antigensProperties of nicotineCocaine place preferenceΒ2 subunitNicotinic acetylcholine receptorsAntagonist mecamylamineDA releaseMetabolite DOPACNeurochemical changesSubthreshold doseType miceDopamine systemPsychomotor stimulantsAcetylcholine receptorsHigh dosesBrain regions