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
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