2022
Polygenic risk score and peer victimisation independently predict depressive symptoms in adolescence: results from the Quebec Longitudinal Study of Children Development
Perret LC, Boivin M, Morneau‐Vaillancourt G, Andlauer TFM, Paquin S, Langevin S, Girard A, Turecki G, O'Donnell K, Tremblay RE, Côté SM, Gouin J, Ouellet‐Morin I, Geoffroy M. Polygenic risk score and peer victimisation independently predict depressive symptoms in adolescence: results from the Quebec Longitudinal Study of Children Development. Journal Of Child Psychology And Psychiatry 2022, 64: 388-396. PMID: 36124742, DOI: 10.1111/jcpp.13706.Peer-Reviewed Original ResearchConceptsDepressive symptomsGenetic predispositionQuebec Longitudinal StudyPolygenic risk scoresRisk scoreSelf-reported depressive symptomsLongitudinal studyIndividual genetic predispositionSuch gene-environment interactionsGene-environment interactionsSuch symptomsSymptomsDepressionChild developmentPredispositionAdolescencePeer victimisationFuture studiesEarly adolescenceScoresRiskAdolescentsAssociation
2019
Integrated analysis of environmental and genetic influences on cord blood DNA methylation in new-borns
Czamara D, Eraslan G, Page CM, Lahti J, Lahti-Pulkkinen M, Hämäläinen E, Kajantie E, Laivuori H, Villa PM, Reynolds RM, Nystad W, Håberg SE, London SJ, O’Donnell K, Garg E, Meaney MJ, Entringer S, Wadhwa PD, Buss C, Jones MJ, Lin DTS, MacIsaac JL, Kobor MS, Koen N, Zar HJ, Koenen KC, Dalvie S, Stein DJ, Kondofersky I, Müller NS, Theis FJ, Räikkönen K, Binder E. Integrated analysis of environmental and genetic influences on cord blood DNA methylation in new-borns. Nature Communications 2019, 10: 2548. PMID: 31186427, PMCID: PMC6559955, DOI: 10.1038/s41467-019-10461-0.Peer-Reviewed Original ResearchConceptsDNA methylationEnvironmental factorsCellular functionsEpigenetic processesCord blood DNA methylationBlood DNA methylationMethylationGenetic variantsGenetic contributionIntegrated analysisPrenatal environmental factorsComplex disorderGenetic influencesGxE modelsGenotypesGWASRelative contributionGxEIndependent cohortCpGDisease riskEnrichmentVariants
2018
PRS-on-Spark (PRSoS): a novel, efficient and flexible approach for generating polygenic risk scores
Chen LM, Yao N, Garg E, Zhu Y, Nguyen TTT, Pokhvisneva I, Hari Dass SA, Unternaehrer E, Gaudreau H, Forest M, McEwen LM, MacIsaac JL, Kobor MS, Greenwood CMT, Silveira PP, Meaney MJ, O’Donnell K. PRS-on-Spark (PRSoS): a novel, efficient and flexible approach for generating polygenic risk scores. BMC Bioinformatics 2018, 19: 295. PMID: 30089455, PMCID: PMC6083617, DOI: 10.1186/s12859-018-2289-9.Peer-Reviewed Original ResearchPrenatal maternal stress, fetal programming, and mechanisms underlying later psychopathology—A global perspective
Glover V, O'Donnell KJ, O'Connor TG, Fisher J. Prenatal maternal stress, fetal programming, and mechanisms underlying later psychopathology—A global perspective. Development And Psychopathology 2018, 30: 843-854. PMID: 30068411, DOI: 10.1017/s095457941800038x.BooksMeSH KeywordsAnxiety DisordersBrainChildCross-Cultural ComparisonDepressive DisorderDeveloping CountriesFemaleFetal DevelopmentHumansHypothalamo-Hypophyseal SystemInfantMental DisordersPituitary-Adrenal SystemPregnancyPrenatal Exposure Delayed EffectsPsychopathologyPsychosocial DeprivationRisk FactorsSocial EnvironmentStress, PsychologicalConceptsPrenatal stressLater psychopathologyPregnancy-specific anxietyPrenatal maternal stressPrenatal stress altersAdrenal axisChild neurodevelopmentHigh-income countriesFetal programmingInfant deathMaternal stressGene-environment interactionsNutritional deficienciesMothers' stressDifferent ethnic groupsStress altersPsychopathologyBiological differencesEthnic groupsInterpersonal violenceAnxietyCaucasian samplesHigh levelsPregnancyCytokinesDNA methylome variation in a perinatal nurse-visitation program that reduces child maltreatment: a 27-year follow-up
O’Donnell K, Chen L, MacIsaac JL, McEwen LM, Nguyen T, Beckmann K, Zhu Y, Chen LM, Brooks-Gunn J, Goldman D, Grigorenko EL, Leckman JF, Diorio J, Karnani N, Olds DL, Holbrook JD, Kobor MS, Meaney MJ. DNA methylome variation in a perinatal nurse-visitation program that reduces child maltreatment: a 27-year follow-up. Translational Psychiatry 2018, 8: 15. PMID: 29317599, PMCID: PMC5802588, DOI: 10.1038/s41398-017-0063-9.Peer-Reviewed Original ResearchConceptsNurse-Family PartnershipIntervention programsProspective longitudinal studyYears of ageMajor psychiatric disordersAge 27 yearsChild maltreatmentPsychosocial intervention programEarly intervention programsLifestyle factorsIntervention groupBlood samplesPsychiatric disordersAdult offspringDiagnostic InterviewChildhood adversityNFP programInterindividual variationLongitudinal studyComponent scoresSustained impactAbuse/neglectDNA methylationFamily partnershipsDNA methylome
2017
Dynamic interaction between fetal adversity and a genetic score reflecting dopamine function on developmental outcomes at 36 months
Bischoff AR, Pokhvisneva I, Léger É, Gaudreau H, Steiner M, Kennedy JL, O’Donnell K, Diorio J, Meaney MJ, Silveira PP, . Dynamic interaction between fetal adversity and a genetic score reflecting dopamine function on developmental outcomes at 36 months. PLOS ONE 2017, 12: e0177344. PMID: 28505190, PMCID: PMC5432105, DOI: 10.1371/journal.pone.0177344.Peer-Reviewed Original Research
2016
Fetal Origins of Mental Health: The Developmental Origins of Health and Disease Hypothesis
O'Donnell KJ, Meaney MJ. Fetal Origins of Mental Health: The Developmental Origins of Health and Disease Hypothesis. American Journal Of Psychiatry 2016, 174: 319-328. PMID: 27838934, DOI: 10.1176/appi.ajp.2016.16020138.BooksMeSH KeywordsAffectBirth WeightBrainChildChild, PreschoolChronic DiseaseFemaleFetal DevelopmentFetal Growth RetardationGene-Environment InteractionGlucocorticoidsHumansInfantInfant, NewbornMaleMaternal HealthMental DisordersNeurodevelopmental DisordersPregnancyPrenatal Exposure Delayed EffectsPsychopathologyRisk FactorsStress, PsychologicalTemperamentConceptsFetal growthMental healthFetal originLater psychopathologyMaternal mental healthDevelopmental originsNeurodevelopmental outcomesFetal neurodevelopmentChronic illnessObservational studyMaternal adversityMaternal anxietyStress mediatorsClinical relevanceFetal developmentPostnatal influencesAdult HealthDisease hypothesisFindings parallel studiesNeurodevelopmentGenetic factorsEmotional wellIllnessHealthRisk
2013
Stressful events and psychological difficulties: testing alternative candidates for sensitivity
Laceulle OM, O’Donnell K, Glover V, O’Connor T, Ormel J, van Aken MA, Nederhof E. Stressful events and psychological difficulties: testing alternative candidates for sensitivity. European Child & Adolescent Psychiatry 2013, 23: 103-113. PMID: 23756816, DOI: 10.1007/s00787-013-0436-4.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAffective SymptomsAnxiety DisordersChildChild DevelopmentChild of Impaired ParentsChild, PreschoolDisease SusceptibilityFemaleHumansLife Change EventsMaleMothersPregnancyPrenatal Exposure Delayed EffectsProspective StudiesRisk FactorsSex FactorsSocial EnvironmentSocioeconomic FactorsStress, PsychologicalSurveys and QuestionnairesTime FactorsConceptsPsychological difficultiesStressful eventsDifficult temperamentPrenatal anxietyLife eventsSources of sensitivityStressful life eventsPrenatal maternal anxietyChild developmentReciprocal associationsAge 7Maternal anxietyAge 4Child's ageTemperamentLongitudinal studyStress exposureAnxietyEarly childhoodCurrent studyConsistent evidenceChildrenPrior workDifficultiesAdditional research
2010
Anxiety, depression and saliva cortisol in women with a medical disorder during pregnancy
King NM, Chambers J, O’Donnell K, Jayaweera SR, Williamson C, Glover VA. Anxiety, depression and saliva cortisol in women with a medical disorder during pregnancy. Archives Of Women's Mental Health 2010, 13: 339-345. PMID: 20101421, DOI: 10.1007/s00737-009-0139-5.Peer-Reviewed Original ResearchConceptsMedical disordersSaliva cortisolDiurnal saliva samplesAdverse pregnancy outcomesHigher EPDS scoresSubgroup of womenExtra psychological supportSelf-rating questionnaireVs. 35.2Antenatal womenHyperemesis gravidarumPregnancy outcomesEPDS scoresPregnant womenVs. 5.9Neurodevelopmental problemsCortisol levelsHealth professionalsPregnancySaliva samplesDisorder groupElevated levelsPsychological supportWomenDisorders