2022
Hippocampal acetylcholine modulates stress-related behaviors independent of specific cholinergic inputs
Mineur YS, Mose TN, Vanopdenbosch L, Etherington IM, Ogbejesi C, Islam A, Pineda CM, Crouse RB, Zhou W, Thompson DC, Bentham MP, Picciotto MR. Hippocampal acetylcholine modulates stress-related behaviors independent of specific cholinergic inputs. Molecular Psychiatry 2022, 27: 1829-1838. PMID: 34997190, PMCID: PMC9106825, DOI: 10.1038/s41380-021-01404-7.Peer-Reviewed Original ResearchConceptsStress-related behaviorsCholinergic inputMedial septum/diagonal bandBehavioral effectsBrain ACh levelsChAT-positive neuronsSelective chemogenetic activationMuscarinic ACh receptorsDepression-like symptomsSignificant behavioral effectsHippocampal acetylcholineMaladaptive behavioral responsesAntidepressant effectsCholinergic neuronsACh releaseChemogenetic activationChemogenetic inhibitionCholinergic antagonistsLocal infusionAcetylcholine levelsACh levelsDiagonal bandACh receptorsHippocampal neuronsPharmacological approaches
2020
Implications of Oligomeric Amyloid-Beta (oAβ42) Signaling through α7β2-Nicotinic Acetylcholine Receptors (nAChRs) on Basal Forebrain Cholinergic Neuronal Intrinsic Excitability and Cognitive Decline
George AA, Vieira JM, Xavier-Jackson C, Gee MT, Cirrito JR, Bimonte-Nelson HA, Picciotto MR, Lukas RJ, Whiteaker P. Implications of Oligomeric Amyloid-Beta (oAβ42) Signaling through α7β2-Nicotinic Acetylcholine Receptors (nAChRs) on Basal Forebrain Cholinergic Neuronal Intrinsic Excitability and Cognitive Decline. Journal Of Neuroscience 2020, 41: 555-575. PMID: 33239400, PMCID: PMC7821864, DOI: 10.1523/jneurosci.0876-20.2020.Peer-Reviewed Original ResearchMeSH KeywordsAlpha7 Nicotinic Acetylcholine ReceptorAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAnimalsBasal ForebrainCell LineCognitive DysfunctionElectrophysiological PhenomenaFemaleGenotypeHumansMaleMaze LearningMiceMice, TransgenicNeuronsParasympathetic Nervous SystemPeptide FragmentsSignal TransductionConceptsBasal forebrain cholinergic neuronsNeuronal intrinsic excitabilityAlzheimer's diseaseCholinergic neuronsDiagonal bandIntrinsic excitabilityAPP/PS1 transgenic miceCognitive declineCharacteristics of ADMedial septum-diagonal bandNicotinic acetylcholine receptor subtypesOligomeric amyloid betaAction potential firing rateForebrain cholinergic neuronsPS1 transgenic miceHorizontal diagonal bandLevels of amyloidSeptum-diagonal bandCurrent-clamp recordingsAcetylcholine receptor subtypesAction potential afterhyperpolarizationAge-matched littermatesOrganotypic slice culturesSpatial reference memoryHomomeric α7