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
5-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 ratesMice
2021
Psilocybin 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 microscopyCortexPsilocybinSpine