2024
Early adversity causes sex-specific deficits in perforant pathway connectivity and contextual memory in adolescent mice
Islam R, White J, Arefin T, Mehta S, Liu X, Polis B, Giuliano L, Ahmed S, Bowers C, Zhang J, Kaffman A. Early adversity causes sex-specific deficits in perforant pathway connectivity and contextual memory in adolescent mice. Biology Of Sex Differences 2024, 15: 39. PMID: 38715106, PMCID: PMC11075329, DOI: 10.1186/s13293-024-00616-0.Peer-Reviewed Original ResearchConceptsLateral entorhinal cortexContextual fear conditioningDorsal hippocampusHippocampal developmentSex differencesFear conditioningEarly adversityLimited beddingSevere deficitsModel of early adversitySex-specific deficitsReelin-positive neuronsPerforant pathwayReelin-positive cellsDiffusion magnetic resonance imagingEx vivo diffusion magnetic resonance imagingContextual freezingContextual memoryAdolescent miceHippocampal functionLife adversityEntorhinal cortexHippocampusDeficitsAdolescent males
2022
Early life stress impairs synaptic pruning in the developing hippocampus
Dayananda KK, Ahmed S, Wang D, Polis B, Islam R, Kaffman A. Early life stress impairs synaptic pruning in the developing hippocampus. Brain Behavior And Immunity 2022, 107: 16-31. PMID: 36174883, PMCID: PMC10497209, DOI: 10.1016/j.bbi.2022.09.014.Peer-Reviewed Original ResearchConceptsSynaptic pruningMicroglial ramificationHippocampal functionAbnormal hippocampal functionCA1 pyramidal neuronsExpression of TREM2Increased spine densityRamification of microgliaEarly life adversityNormal hippocampal functionSynaptic engulfmentClinical outcomesPyramidal neuronsSpine densityFemale miceHippocampal stimulationSevere formHippocampal developmentPhagocytic activitySevere impairmentEx vivoLife adversityThird weekEarly adversityMice
2020
Early life stress causes sex-specific changes in adult fronto-limbic connectivity that differentially drive learning
White JD, Arefin TM, Pugliese A, Lee CH, Gassen J, Zhang J, Kaffman A. Early life stress causes sex-specific changes in adult fronto-limbic connectivity that differentially drive learning. ELife 2020, 9: e58301. PMID: 33259286, PMCID: PMC7725504, DOI: 10.7554/elife.58301.Peer-Reviewed Original ResearchConceptsEarly life stressSex-specific changesContextual freezing behaviorFronto-limbic connectivityLife stressHigh-resolution diffusion magnetic resonance imagingSex-specific mechanismsMagnetic resonance imagingNeuroanatomical alterationsPostnatal stressDiffusion magnetic resonance imagingMouse modelFronto-limbicResonance imagingModerate responseMalesTranslational workFemalesRodentsFreezing behaviorHuman imagingImagingHypoconnectivityInjury
2019
Editorial Perspective: Childhood maltreatment – the problematic unisex assumption
White JD, Kaffman A. Editorial Perspective: Childhood maltreatment – the problematic unisex assumption. Journal Of Child Psychology And Psychiatry 2019, 61: 732-734. PMID: 31828779, PMCID: PMC7242136, DOI: 10.1111/jcpp.13177.Peer-Reviewed Original Research
2015
Early-Life Stress Perturbs Key Cellular Programs in the Developing Mouse Hippocampus
Wei L, Hao J, Lacher RK, Abbott T, Chung L, Colangelo CM, Kaffman A. Early-Life Stress Perturbs Key Cellular Programs in the Developing Mouse Hippocampus. Developmental Neuroscience 2015, 37: 476-488. PMID: 26068561, PMCID: PMC4644446, DOI: 10.1159/000430861.Peer-Reviewed Original ResearchConceptsEarly life stressEffects of ELSHippocampal developmentSynaptic maturationAxonal growthExpression of proteinsJuvenile hippocampusJuvenile miceHippocampal functionAbnormal hippocampal developmentNormal axonal growthHippocampal-dependent memoryNormal synaptic developmentHuman imaging studiesTotal protein contentCA1 neuronsSynaptic markersFemale miceMouse modelMouse hippocampusSynaptic pruningAnimal modeMature spinesHippocampusSynaptic proteinsEarly-Life Stress Restricts the Capacity of Adult Progenitor Cells to Differentiate into Neurons
Kaffman A. Early-Life Stress Restricts the Capacity of Adult Progenitor Cells to Differentiate into Neurons. Biological Psychiatry 2015, 77: 307-309. PMID: 25592267, PMCID: PMC4435555, DOI: 10.1016/j.biopsych.2014.11.008.Peer-Reviewed Original Research
2014
Early Life Stress Inhibits Expression of Ribosomal RNA in the Developing Hippocampus
Wei L, Hao J, Kaffman A. Early Life Stress Inhibits Expression of Ribosomal RNA in the Developing Hippocampus. PLOS ONE 2014, 9: e115283. PMID: 25517398, PMCID: PMC4269428, DOI: 10.1371/journal.pone.0115283.Peer-Reviewed Original ResearchConceptsEarly life stressSecond weekHippocampal growthAbnormal hippocampal functionNormal hippocampal developmentNormal mouse hippocampusLife stressMaternal separationMouse hippocampusMouse modelHippocampal developmentHippocampal functionHippocampus developmentNovel molecular mechanismDaily separationHippocampusWeeksDNA methylationInhibits expressionAdulthoodExposureMolecular mechanismsRNA contentGradual declineNormal growth
2011
Early Life Stress Inhibits Expression of a Novel Innate Immune Pathway in the Developing Hippocampus
Wei L, Simen A, Mane S, Kaffman A. Early Life Stress Inhibits Expression of a Novel Innate Immune Pathway in the Developing Hippocampus. Neuropsychopharmacology 2011, 37: 567-580. PMID: 21993208, PMCID: PMC3242319, DOI: 10.1038/npp.2011.239.Peer-Reviewed Original ResearchMeSH KeywordsAcute-Phase ProteinsAnimalsAnimals, NewbornAnxietyBehavior, AnimalCarrier ProteinsCorticosteroneCritical Period, PsychologicalDisease Models, AnimalDown-RegulationFemaleGenomicsHippocampusHumansImmunity, InnateMaleMaternal DeprivationMembrane GlycoproteinsMemory DisordersMiceMice, Inbred BALB CMice, KnockoutNeurogenesisStress, PsychologicalConceptsLipopolysaccharide binding proteinEarly life stressAnxiety-like behaviorLife stressSynaptic pruningNovel innate immune pathwayLBP knockout miceNormal hippocampal developmentNormal synaptic pruningSynaptic marker PSD95Hippocampus of pupsMajor risk factorChronic mental illnessImpairs cognitive functionInnate immune pathwaysPostnatal day 30Hippocampal-dependent memoryAbnormal spine morphologyInnate immune systemNon-human primatesLBP levelsSpine densityMicroglia cellsRisk factorsHippocampal developmentAffiliative Behavior Requires Juvenile, But Not Adult Neurogenesis
Wei L, Meaney MJ, Duman RS, Kaffman A. Affiliative Behavior Requires Juvenile, But Not Adult Neurogenesis. Journal Of Neuroscience 2011, 31: 14335-14345. PMID: 21976519, PMCID: PMC3204413, DOI: 10.1523/jneurosci.1333-11.2011.Peer-Reviewed Original ResearchConceptsAdult female miceAdult neurogenesisFemale miceSubventricular zoneAblation of neurogenesisLevels of neurogenesisTransgenic mouse approachSubgranular zoneOlfactory deficitsNew neuronsGlobal eliminationBrain circuitsNeurogenesisProfound impairmentMiceJuvenile periodNovel roleAdult femalesSocial explorationMouse approachSocial abnormalitiesMolecular mechanismsAblationFemalesPeriod
2010
Early-life stress, corticotropin-releasing factor, and serotonin transporter gene: A pilot study
Coplan JD, Abdallah CG, Kaufman J, Gelernter J, Smith EL, Perera TD, Dwork AJ, Kaffman A, Gorman JM, Rosenblum LA, Owens MJ, Nemeroff CB. Early-life stress, corticotropin-releasing factor, and serotonin transporter gene: A pilot study. Psychoneuroendocrinology 2010, 36: 289-293. PMID: 20692103, PMCID: PMC3017732, DOI: 10.1016/j.psyneuen.2010.07.011.Peer-Reviewed Original ResearchConceptsEarly life stressCSF CRF concentrationsCRF concentrationsCerebrospinal fluid corticotropin-releasing factor concentrationsCorticotropin-releasing factor concentrationsPilot studyNonhuman primate modelCorticotropin-releasing factorYears of ageEarly life adversitySerotonin transporter gene polymorphismPersistent elevationTransporter gene polymorphismPrimate modelMajor depressionCSF samplesDepressive symptomsGene polymorphismsAllele groupFactor concentrationsLFD conditionsMale bonnet macaquesChildhood abuseSubsequent developmentBonnet macaquesThe role of early life stress in development of the anterior limb of the internal capsule in nonhuman primates
Coplan JD, Abdallah CG, Tang CY, Mathew SJ, Martinez J, Hof PR, Smith EL, Dwork AJ, Perera TD, Pantol G, Carpenter D, Rosenblum LA, Shungu DC, Gelernter J, Kaffman A, Jackowski A, Kaufman J, Gorman JM. The role of early life stress in development of the anterior limb of the internal capsule in nonhuman primates. Neuroscience Letters 2010, 480: 93-96. PMID: 20541590, PMCID: PMC2951885, DOI: 10.1016/j.neulet.2010.06.012.Peer-Reviewed Original ResearchConceptsDeep brain stimulationInternal capsuleDiffusion tensor imagingWhite matterFractional anisotropyAnterior limbNonhuman primate modelWhite matter impairmentAdult male bonnet macaquesOccipital white matterEarly life stressWhite matter tract integrityWhite matter integrityParental verbal abuseMother-infant attachmentPrimate modelPosterior limbBrain stimulationTract integrityTensor imagingAnxiety disordersAnxiety scoresMale bonnet macaquesLife stressSignificant reductionEarly life stress increases anxiety-like behavior in Balbc mice despite a compensatory increase in levels of postnatal maternal care
Wei L, David A, Duman RS, Anisman H, Kaffman A. Early life stress increases anxiety-like behavior in Balbc mice despite a compensatory increase in levels of postnatal maternal care. Hormones And Behavior 2010, 57: 396-404. PMID: 20096699, PMCID: PMC2849915, DOI: 10.1016/j.yhbeh.2010.01.007.Peer-Reviewed Original Research
2007
Neurodevelopmental sequelae of postnatal maternal care in rodents: clinical and research implications of molecular insights
Kaffman A, Meaney MJ. Neurodevelopmental sequelae of postnatal maternal care in rodents: clinical and research implications of molecular insights. Journal Of Child Psychology And Psychiatry 2007, 48: 224-244. PMID: 17355397, DOI: 10.1111/j.1469-7610.2007.01730.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnimals, NewbornArousalBehavior, AnimalBrainCognitionCritical Period, PsychologicalDNA MethylationEmotionsEpigenesis, GeneticFemaleGroomingHumansHypothalamo-Hypophyseal SystemMaleMaternal BehaviorMicePhenotypePrimatesRatsReceptors, NeurotransmitterSensory DeprivationSocial EnvironmentTouchConceptsDNA methylationFrequency of lickingParent-offspring interactionsPostnatal maternal carePromoter elementsGene expressionPostmitotic cellsMolecular insightsParental careBehavioral traitsFunctional consequencesImportant roleMolecular scaffoldsMethylationMaternal careNon-human primatesRecent rodent workBrain developmentExpressionNeurodevelopmental aspectsRodentsMammalsGenesPrimates