2024
Ventral hippocampal parvalbumin interneurons gate the acute anxiolytic action of the serotonergic psychedelic DOI
Tiwari P, Davoudian P, Kapri D, Vuruputuri R, Karaba L, Sharma M, Zanni G, Balakrishnan A, Chaudhari P, Pradhan A, Suryavanshi S, Bath K, Ansorge M, Fernandez-Ruiz A, Kwan A, Vaidya V. Ventral hippocampal parvalbumin interneurons gate the acute anxiolytic action of the serotonergic psychedelic DOI. Neuron 2024 PMID: 39321791, DOI: 10.1016/j.neuron.2024.08.016.Peer-Reviewed Original ResearchAnxiolytic actionVentral hippocampusParvalbumin (PV)-positive interneuronsAnxiety-like behaviorAction of DOIPV-positive interneuronsPsychedelic DOIAnxiolytic responseAnxiolytic effectsSerotonergic psychedelicsFast-spiking cellsParvalbumin interneuronsGABAergic interneuronsVHPCFiring rateDOIHippocampusInterneuronsTherapeutic potentialReceptorsPsychedelicsCellular triggersGenetic approachesElectrophysiology
2023
Psychedelic renaissance: Revitalized potential therapies for psychiatric disorders
Rhee T, Davoudian P, Sanacora G, Wilkinson S. Psychedelic renaissance: Revitalized potential therapies for psychiatric disorders. Drug Discovery Today 2023, 28: 103818. PMID: 37925136, DOI: 10.1016/j.drudis.2023.103818.Peer-Reviewed Original ResearchPsychiatric disordersLysergic acid diethylamideClinical trialsUS Clinical Trials RegistryClinical Trials RegistryPotential therapeutic effectsTrials RegistryTherapeutic effectPotential therapyTherapeutic agentsN-dimethyltryptamineAcid diethylamideLargest causePsychedelic compoundsDisordersPsychotherapeutic approachesSafety concernsTrialsPotential interactive effectsCutting-edge reviewPsychedelic substancesRegistryTherapyHyperconnectivity of Two Separate Long-Range Cholinergic Systems Contributes to the Reorganization of the Brain Functional Connectivity during Nicotine Withdrawal in Male Mice
Carrette L, Kimbrough A, Davoudian P, Kwan A, Collazo A, George O. Hyperconnectivity of Two Separate Long-Range Cholinergic Systems Contributes to the Reorganization of the Brain Functional Connectivity during Nicotine Withdrawal in Male Mice. ENeuro 2023, 10: eneuro.0019-23.2023. PMID: 37295945, PMCID: PMC10306126, DOI: 10.1523/eneuro.0019-23.2023.Peer-Reviewed Original ResearchConceptsWhole-brain functional connectivityCholinergic regionsCholinergic systemFunctional connectivityNicotine withdrawalMale miceFos expressionNicotinic receptorsBrain cholinergic systemWithdrawal-induced changesImmediate early gene FosDiscontinuation of useNicotinic acetylcholine receptorsBrain functional connectivityCholinergic neuronsBasal forebrainNicotine resultsWithdrawal symptomsCholinergic neurotransmissionMRNA expression databaseReceptor mRNANicotine dependenceAcetylcholine receptorsBaseline expressionBrain regions5-MeO-DMT modifies innate behaviors and promotes structural neural plasticity in mice
Jefferson S, Gregg I, Dibbs M, Liao C, Wu H, Davoudian P, Woodburn S, Wehrle P, Sprouse J, Sherwood A, Kaye A, Pittenger C, Kwan A. 5-MeO-DMT modifies innate behaviors and promotes structural neural plasticity in mice. Neuropsychopharmacology 2023, 48: 1257-1266. PMID: 37015972, PMCID: PMC10354037, DOI: 10.1038/s41386-023-01572-w.Peer-Reviewed Original ResearchConceptsMouse medial frontal cortexEarly phase clinical studiesDendritic spine densityHead-twitch responseDose-dependent increaseStructural neural plasticityMedial frontal cortexSpine densityClinical studiesFrontal cortexLong-term effectsDendritic spinesMental illnessNeural plasticitySpine formationPatient accessSubjective effectsNeural consequencesPotential therapeuticsSerotonergic psychedelicsAnxiety symptomsNeural mechanismsUltrasonic vocalizationsElevated ratesMiceShared and Distinct Brain Regions Targeted for Immediate Early Gene Expression by Ketamine and Psilocybin
Davoudian P, Shao L, Kwan A. Shared and Distinct Brain Regions Targeted for Immediate Early Gene Expression by Ketamine and Psilocybin. ACS Chemical Neuroscience 2023, 14: 468-480. PMID: 36630309, PMCID: PMC9898239, DOI: 10.1021/acschemneuro.2c00637.Peer-Reviewed Original ResearchConceptsC-fos expressionBrain regionsNeural plasticityPlasticity-related gene expressionPrimary visual cortexNumerous brain regionsAnterior cingulate cortexExact brain regionsContribution of receptorsDistinct brain regionsImmediate early gene expressionDorsal rapheGlutamatergic receptorsCA1 subfieldSubanesthetic ketamineFemale miceLocus coeruleusInsular cortexSaline controlsTherapeutic effectPsilocybin administrationBasolateral amygdalaLateral habenulaCingulate cortexVisual cortexVisualizing drug actions on dendrites: psilocybin and other classic psychedelics
Shao L, Liao C, Gregg I, Davoudian P, Savalia N, Delagarza K, Kwan A. Visualizing drug actions on dendrites: psilocybin and other classic psychedelics. 2023, btu2b.2. DOI: 10.1364/brain.2023.btu2b.2.Peer-Reviewed Original Research
2022
Local connectivity and synaptic dynamics in mouse and human neocortex
Campagnola L, Seeman SC, Chartrand T, Kim L, Hoggarth A, Gamlin C, Ito S, Trinh J, Davoudian P, Radaelli C, Kim MH, Hage T, Braun T, Alfiler L, Andrade J, Bohn P, Dalley R, Henry A, Kebede S, Alice M, Sandman D, Williams G, Larsen R, Teeter C, Daigle TL, Berry K, Dotson N, Enstrom R, Gorham M, Hupp M, Dingman Lee S, Ngo K, Nicovich PR, Potekhina L, Ransford S, Gary A, Goldy J, McMillen D, Pham T, Tieu M, Siverts L, Walker M, Farrell C, Schroedter M, Slaughterbeck C, Cobb C, Ellenbogen R, Gwinn RP, Keene CD, Ko AL, Ojemann JG, Silbergeld DL, Carey D, Casper T, Crichton K, Clark M, Dee N, Ellingwood L, Gloe J, Kroll M, Sulc J, Tung H, Wadhwani K, Brouner K, Egdorf T, Maxwell M, McGraw M, Pom CA, Ruiz A, Bomben J, Feng D, Hejazinia N, Shi S, Szafer A, Wakeman W, Phillips J, Bernard A, Esposito L, D'Orazi FD, Sunkin S, Smith K, Tasic B, Arkhipov A, Sorensen S, Lein E, Koch C, Murphy G, Zeng H, Jarsky T. Local connectivity and synaptic dynamics in mouse and human neocortex. Science 2022, 375: eabj5861. PMID: 35271334, PMCID: PMC9970277, DOI: 10.1126/science.abj5861.Peer-Reviewed Original ResearchAMPK-mediated potentiation of GABAergic signalling drives hypoglycaemia-provoked spike-wave seizures
Salvati KA, Ritger ML, Davoudian PA, O'Dell F, Wyskiel DR, Souza GMPR, Lu AC, Perez-Reyes E, Drake JC, Yan Z, Beenhakker MP. AMPK-mediated potentiation of GABAergic signalling drives hypoglycaemia-provoked spike-wave seizures. Brain 2022, 145: 2332-2346. PMID: 35134125, PMCID: PMC9337815, DOI: 10.1093/brain/awac037.Peer-Reviewed Original ResearchConceptsSpike-wave seizuresAbsence epilepsyGABAB receptor functionThalamic brain slicesThalamocortical neuronsCircuit excitabilitySystemic administrationBrain slicesRodent modelsNeuronal activityDiabetes treatmentEpileptic seizuresSeizuresProtein kinaseProtein kinase activationAMPEpilepsyNetwork activityKinase activationMetabolismActivationProtein kinase agonistsEnergetic stressHypoglycaemiaKinase
2021
Connectomic features underlying diverse synaptic connection strengths and subcellular computation
Liu TX, Davoudian PA, Lizbinski KM, Jeanne JM. Connectomic features underlying diverse synaptic connection strengths and subcellular computation. Current Biology 2021, 32: 559-569.e5. PMID: 34914905, PMCID: PMC8825683, DOI: 10.1016/j.cub.2021.11.056.Peer-Reviewed Original ResearchConceptsSomatic postsynaptic potentialsSingle presynaptic spikeElectrical compartmentalizationPostsynaptic potentialsSynapse densityDiverse neuronsSynaptic connectionsSynaptic connection strengthsOlfactory networkPresynaptic spikesNeural tissueDrosophila brainNeuronal biophysicsConnectivity mapsNeuronsBrainSynapsesPsilocybin induces rapid and persistent growth of dendritic spines in frontal cortex in vivo
Shao LX, Liao C, Gregg I, Davoudian PA, Savalia NK, Delagarza K, Kwan AC. Psilocybin induces rapid and persistent growth of dendritic spines in frontal cortex in vivo. Neuron 2021, 109: 2535-2544.e4. PMID: 34228959, PMCID: PMC8376772, DOI: 10.1016/j.neuron.2021.06.008.Peer-Reviewed Original ResearchConceptsFrontal cortexDendritic spinesMouse medial frontal cortexLayer 5 pyramidal neuronsSpine formation ratesApical dendritic spinesMedial frontal cortexUntapped therapeutic potentialPyramidal neuronsSingle doseExcitatory neurotransmissionBehavioral deficitsBeneficial actionsStructural remodelingSynaptic rewiringMammalian brainTherapeutic potentialNeural adaptationUse of psychedelicsSerotonergic psychedelicsSpine sizeTwo-photon microscopyCortexPsilocybinSpineDopaminergic mechanism underlying reward-encoding of punishment omission during reversal learning in Drosophila
McCurdy LY, Sareen P, Davoudian PA, Nitabach MN. Dopaminergic mechanism underlying reward-encoding of punishment omission during reversal learning in Drosophila. Nature Communications 2021, 12: 1115. PMID: 33602917, PMCID: PMC7893153, DOI: 10.1038/s41467-021-21388-w.Peer-Reviewed Original ResearchConceptsDopaminergic neuronsCholinergic neuronsNeural circuit mechanismsCholinergic relayDopaminergic mechanismsSynaptic excitationSynaptic reconstructionSynaptic inputsVivo functional imagingCircuit mechanismsNeuronsAversive memoryFunctional imagingOdor responsesAversive outcomesReduced activationSuch activationCircuit motifsActivationOutcomesElectric shock punishmentSensory cuesUnexpected omissionShock punishmentBehavioral analysisEmerging Therapeutics Based on the Amino Acid Neurotransmitter System: An Update on the Pharmaceutical Pipeline for Mood Disorders
Hecking J, Davoudian PA, Wilkinson ST. Emerging Therapeutics Based on the Amino Acid Neurotransmitter System: An Update on the Pharmaceutical Pipeline for Mood Disorders. Chronic Stress 2021, 5: 24705470211020446. PMID: 34124495, PMCID: PMC8175843, DOI: 10.1177/24705470211020446.Peer-Reviewed Original ResearchMood disordersMonoamine hypothesisPhase III clinical trialsAmino acid neurotransmitter systemsClassical monoamine hypothesisAmino acid neurotransmittersPublic health issueClinical trialsNovel therapiesNeurotransmitter systemsAV-101Clinical treatmentClinical researchHealth issuesDisordersPotential targetPhase IIPharmaceutical pipelineDrugsGanaxoloneZuranoloneEsketamineBrexanoloneRapastinelPathophysiology
2020
Chapter Four Clinical overview of NMDA-R antagonists and clinical practice
Davoudian PA, Wilkinson ST. Chapter Four Clinical overview of NMDA-R antagonists and clinical practice. Advances In Pharmacology 2020, 89: 103-129. PMID: 32616204, DOI: 10.1016/bs.apha.2020.04.004.ChaptersConceptsNMDA receptor antagonistReceptor antagonistGlutamatergic systemClinical trialsPathophysiology of depressionLevels of monoaminesNMDA-R antagonistsTreatment of depressionRole of glutamatePatient's therapeutic responseRecent FDA approvalIntranasal esketamineMonoamine hypothesisPathophysiological mechanismsClinical overviewTherapeutic responseCurrent treatmentClinical practiceTranslational studiesMental illnessFDA approvalNeural circuitsAntagonistDepressionPotential mechanisms
2018
Sparse recurrent excitatory connectivity in the microcircuit of the adult mouse and human cortex
Seeman SC, Campagnola L, Davoudian PA, Hoggarth A, Hage TA, Bosma-Moody A, Baker CA, Lee JH, Mihalas S, Teeter C, Ko AL, Ojemann JG, Gwinn RP, Silbergeld DL, Cobbs C, Phillips J, Lein E, Murphy G, Koch C, Zeng H, Jarsky T. Sparse recurrent excitatory connectivity in the microcircuit of the adult mouse and human cortex. ELife 2018, 7: e37349. PMID: 30256194, PMCID: PMC6158007, DOI: 10.7554/elife.37349.Peer-Reviewed Original ResearchConceptsRecurrent excitatory connectivityExcitatory connectivityAdult mouse primary visual cortexMouse primary visual cortexHuman cortexLayer 2/3 neuronsClasses of neuronsPrimary visual cortexShort-term depressionBody of evidenceExcitatory neuronsAdult miceVisual cortexSynaptic signalingTwo-photon optogeneticsCell classesCortical networksCortical microcircuitsCortexNeuronsFuture studiesMiceMicrocircuitsSynapses