2022
Graph theory analysis of whole brain functional connectivity to assess disturbances associated with suicide attempts in bipolar disorder
Sankar A, Scheinost D, Goldman DA, Drachman R, Colic L, Villa LM, Kim JA, Gonzalez Y, Marcelo I, Shinomiya M, Pittman B, Lacadie CM, Oquendo MA, Constable RT, Blumberg HP. Graph theory analysis of whole brain functional connectivity to assess disturbances associated with suicide attempts in bipolar disorder. Translational Psychiatry 2022, 12: 7. PMID: 35013103, PMCID: PMC8748935, DOI: 10.1038/s41398-021-01767-z.Peer-Reviewed Original ResearchConceptsIntrinsic connectivity distributionBipolar disorderSuicide attemptsHealthy volunteersFunctional connectivity disturbancesSuicide behaviorWhole-brain functional connectivityPrior suicide attemptsRight anterior insulaBrain functional connectivitySuicidal ideation severityBilateral ventromedial prefrontal cortexFunctional magnetic resonanceSignificant group differencesTemporopolar cortexConnectivity disturbancesBrain targetsFC differencesHigh riskCerebellar cortexVentromedial prefrontal cortexSuicidal ideationOrbitofrontal cortexFunctional connectivitySuicide risk
2018
Gray and white matter differences in adolescents and young adults with prior suicide attempts across bipolar and major depressive disorders
Fan S, Lippard ETC, Sankar A, Wallace A, Johnston JAY, Wang F, Pittman B, Spencer L, Oquendo MA, Blumberg HP. Gray and white matter differences in adolescents and young adults with prior suicide attempts across bipolar and major depressive disorders. Journal Of Affective Disorders 2018, 245: 1089-1097. PMID: 30699851, PMCID: PMC6903411, DOI: 10.1016/j.jad.2018.11.095.Peer-Reviewed Original ResearchConceptsMajor depressive disorderYoung adult suicide attemptersNon-suicide attemptersAdult suicide attemptersBipolar disorderSuicide attemptersFractional anisotropyDepressive disorderGM volumePrevention strategiesBrain circuitryYoung adultsBrain circuitry abnormalitiesAdolescents/young adultsWhite matter fractional anisotropyEarly prevention strategiesAdolescence/young adulthoodMagnetic resonance scanningWhite matter alterationsGray matter volumeSuicide prevention strategiesPrior suicide attemptsWM fractional anisotropyWhole-brain analysisWhite matter differences
2017
Multimodal Neuroimaging of Frontolimbic Structure and Function Associated With Suicide Attempts in Adolescents and Young Adults With Bipolar Disorder
Johnston JAY, Wang F, Liu J, Blond BN, Wallace A, Liu J, Spencer L, Cox Lippard ET, Purves KL, Landeros-Weisenberger A, Hermes E, Pittman B, Zhang S, King R, Martin A, Oquendo MA, Blumberg HP. Multimodal Neuroimaging of Frontolimbic Structure and Function Associated With Suicide Attempts in Adolescents and Young Adults With Bipolar Disorder. American Journal Of Psychiatry 2017, 174: 667-675. PMID: 28135845, PMCID: PMC5939580, DOI: 10.1176/appi.ajp.2016.15050652.Peer-Reviewed Original ResearchConceptsGray matter volumeBipolar disorderWhite matter integrityFunctional connectivityMatter volumeSuicide attemptsAttempt lethalityPrefrontal connectivitySuicidal ideationYoung adult suicide attemptersAmygdala-prefrontal functional connectivityYoung adultsAmygdala functional connectivitySuicide-related symptomsAdult suicide attemptersPrior suicide attemptsRegional gray matter volumeFrontolimbic structuresNonattempter groupFrontolimbic systemsHigh riskSignificant negative correlationFunctional MROrbitofrontal cortexSuicidal behavior