Jiayi Xu, PhD
Associate Research Scientist in PsychiatryCards
About
Research
Publications
2024
W22. EATING DISORDERS OVER THE WEIGHT SPECTRUM: DISSECTING GENETIC DIFFERENCES OF EATING DISORDERS, THINNESS, AND OBESITY
Xu J, Signer R, Hicks E, Johnston K, Termorshuizen J, Group P, Bulik C, Huckins L. W22. EATING DISORDERS OVER THE WEIGHT SPECTRUM: DISSECTING GENETIC DIFFERENCES OF EATING DISORDERS, THINNESS, AND OBESITY. European Neuropsychopharmacology 2024, 87: 112. DOI: 10.1016/j.euroneuro.2024.08.231.Peer-Reviewed Original ResearchTissue-specific mannerSignificant genesCC-GWASGenetic distanceConstitutional thinnessIdentified multiple risk variantsBonferroni significanceGenome-wide lociGenome-wide significanceMultiple risk variantsConcordant effect directionsBinge eatingClinical differencesEating disordersGTEx v8S-PrediXcanAN-BGene associationsGenetic relationshipsRisk variantsRisk genesWeight-related traitsGenetic etiologyGenesDifferential expressionExploiting meta-analysis of genome-wide interaction with serum 25-hydroxyvitamin D to identify novel genetic loci associated with pulmonary function
Seo J, Gaddis N, Patchen B, Xu J, Barr R, O’Connor G, Manichaikul A, Gharib S, Dupuis J, North K, Cassano P, Hancock D. Exploiting meta-analysis of genome-wide interaction with serum 25-hydroxyvitamin D to identify novel genetic loci associated with pulmonary function. American Journal Of Clinical Nutrition 2024, 119: 1227-1237. PMID: 38484975, PMCID: PMC11130669, DOI: 10.1016/j.ajcnut.2024.03.007.Peer-Reviewed Original ResearchConceptsGenome-wide association studiesGenome-wide interactionsGWAS meta-analysesGenome-wide genotypingGenetic variant associationsPathway enrichment analysisGenetic architectureVariant associationsP38 MAPK pathwayAssociation studiesGene-environment interactionsBiological insightsGenetic variantsEnrichment analysisVariant signalsMeta-analyzed resultsMAPK pathwayBiological relevancePathwayForced vital capacityEvaluate interactive effectsMeta-analysesVariantsSmoking historyAssociated with FEV<sub>1</sub> an
2023
Eating disorders: are gut microbiota to blame?
Xu J, Carroll I, Huckins L. Eating disorders: are gut microbiota to blame? Trends In Molecular Medicine 2023, 30: 317-320. PMID: 38040602, PMCID: PMC11009075, DOI: 10.1016/j.molmed.2023.11.007.Peer-Reviewed Original ResearchMULTI-ANCESTRY PHENOME-WIDE ASSOCIATION ANALYSES OF GENETIC LIABILITY FOR PROBLEMATIC ALCOHOL USE
Kember R, Johnson J, Johnston K, Lee H, Xu J, Davis L, Smoller J, Mallard T, Huckins L, Sanchez-Roige S, Kranzler H, Gelernter J, Zhou H. MULTI-ANCESTRY PHENOME-WIDE ASSOCIATION ANALYSES OF GENETIC LIABILITY FOR PROBLEMATIC ALCOHOL USE. European Neuropsychopharmacology 2023, 75: s10. DOI: 10.1016/j.euroneuro.2023.08.027.Peer-Reviewed Original Research
2022
Exploring the clinical and genetic associations of adult weight trajectories using electronic health records in a racially diverse biobank: a phenome-wide and polygenic risk study
Xu J, Johnson JS, Signer R, Consortium E, Birgegård A, Jordan J, Kennedy MA, Landén M, Maguire SL, Martin NG, Mortensen PB, Petersen LV, Thornton LM, Bulik CM, Huckins LM. Exploring the clinical and genetic associations of adult weight trajectories using electronic health records in a racially diverse biobank: a phenome-wide and polygenic risk study. The Lancet Digital Health 2022, 4: e604-e614. PMID: 35780037, PMCID: PMC9612590, DOI: 10.1016/s2589-7500(22)00099-1.Peer-Reviewed Original ResearchConceptsElectronic health recordsPolygenic risk scoresWeight trajectoriesDepression polygenic risk scoresObesity polygenic risk scoresHealth recordsWeight changeUK BiobankIndividual health statusLower disease riskGenetic associationPatient populationUS National InstitutesWeight managementStable weightRisk scoreHealthy populationHealth statusAnorexia nervosaBioMe BiobankDisease riskDisorder diagnosisMental healthWeight lossPhenome-wide association studyIdentifying Genetic Components of Anorexia Nervosa Through Pathway Polygenic Risk Scores
Xu J, Johnson J, Choi S, García-González J, Consortium E, Bulik C, O’Reilly P, Huckins L. Identifying Genetic Components of Anorexia Nervosa Through Pathway Polygenic Risk Scores. Biological Psychiatry 2022, 91: s70. DOI: 10.1016/j.biopsych.2022.02.194.Peer-Reviewed Original ResearchMapping anorexia nervosa genes to clinical phenotypes
Johnson J, Cote A, Dobbyn A, Sloofman L, Xu J, Cotter L, Charney A, Consortium E, Birgegård A, Jordan J, Kennedy M, Landén M, Maguire S, Martin N, Mortensen P, Thornton L, Bulik C, Huckins L. Mapping anorexia nervosa genes to clinical phenotypes. Psychological Medicine 2022, 53: 2619-2633. PMID: 35379376, PMCID: PMC10123844, DOI: 10.1017/s0033291721004554.Peer-Reviewed Original ResearchConceptsBody mass indexGenome-wide association studiesTranscriptome imputationElectronic health record phenotypingAssociation studiesPhenome-wide association studyS-PrediXcan analysisMeasurement of cholesterolTraditional genome-wide association studiesGenes associated with ANAssociation of genetic variantsSubstance useGenetically regulated gene expressionImpact of body mass indexConsequences of aberrant expressionBiobank cohortBiobank populationAssociated with measuresAssociation of ANGWAS findingsSecondary analysisS-PrediXcanDisease riskMass indexSignificant genesChange in plasma α-tocopherol associations with attenuated pulmonary function decline and with CYP4F2 missense variation
Xu J, Guertin K, Gaddis N, Agler A, Parker R, Feldman J, Kristal A, Arnold K, Goodman P, Tangen C, Hancock D, Cassano P. Change in plasma α-tocopherol associations with attenuated pulmonary function decline and with CYP4F2 missense variation. American Journal Of Clinical Nutrition 2022, 115: 1205-1216. PMID: 35040869, PMCID: PMC8970985, DOI: 10.1093/ajcn/nqac013.Peer-Reviewed Original ResearchConceptsMulti-Ethnic Genotyping ArrayFunctional declineMixed-effects linear regressionAttenuate age-related declinePulmonary function declineFEV1 declineNever smokersFormer smokersAdherent participantsEuropean ancestryDietary intakeHigh dietary intakeEffect sizeCytochrome P450 family 4 subfamily F member 2SmokersGenotyping arraysAge-related declineLinear regressionAssociationC alleleMissense variantsT alleleMissense variationsPulmonary functionBaseline
2021
64. IDENTIFYING PSYCHIATRIC AND METABOLIC GENETIC COMPONENTS OF ANOREXIA NERVOSA THROUGH PATHWAY POLYGENIC RISK SCORES
Xu J, Johnson J, Choi S, García-González J, Group E, Bulik C, O'Reilly P, Huckins L. 64. IDENTIFYING PSYCHIATRIC AND METABOLIC GENETIC COMPONENTS OF ANOREXIA NERVOSA THROUGH PATHWAY POLYGENIC RISK SCORES. European Neuropsychopharmacology 2021, 51: e75-e76. DOI: 10.1016/j.euroneuro.2021.07.153.Peer-Reviewed Original Research
2020
Genetically Determined Omega-3 Polyunsaturated Fatty Acids and Lung Function: A Mendelian Randomization Analysis
Patchen B, Xu J, Hancock D, Cassano P. Genetically Determined Omega-3 Polyunsaturated Fatty Acids and Lung Function: A Mendelian Randomization Analysis. Current Developments In Nutrition 2020, 4: nzaa061_101. PMCID: PMC7259102, DOI: 10.1093/cdn/nzaa061_101.Peer-Reviewed Original ResearchAssociated with FEV1Multivariable MRMendelian randomizationForced vital capacityHeart and Aging ResearchInverse variance weighted methodHealth training programsMendelian randomization analysisVariance weighted methodGenome-wide association dataImprove causal inferenceCross-sectional studyLung functionNational InstituteWald ratioDigestive and Kidney DiseasesSample MRUnivariable MREpidemiology ConsortiumUK BiobankResidual confoundingNational Institute of DiabetesRandomization analysisTraining programForced expiratory volume