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Start Over Author "Ojha, Amar" Topic suicidal ideation
3 results on '"Ojha, Amar"'

1. Structural brain alterations associated with suicidal thoughts and behaviors in young people: results from 21 international studies from the ENIGMA Suicidal Thoughts and Behaviours consortium.

Author

van Velzen LS, Dauvermann MR, Colic L, Villa LM, Savage HS, Toenders YJ, Zhu AH, Bright JK, Campos AI, Salminen LE, Ambrogi S, Ayesa-Arriola R, Banaj N, Başgöze Z, Bauer J, Blair K, Blair RJ, Brosch K, Cheng Y, Colle R, Connolly CG, Corruble E, Couvy-Duchesne B, Crespo-Facorro B, Cullen KR, Dannlowski U, Davey CG, Dohm K, Fullerton JM, Gonul AS, Gotlib IH, Grotegerd D, Hahn T, Harrison BJ, He M, Hickie IB, Ho TC, Iorfino F, Jansen A, Jollant F, Kircher T, Klimes-Dougan B, Klug M, Leehr EJ, Lippard ETC, McLaughlin KA, Meinert S, Miller AB, Mitchell PB, Mwangi B, Nenadić I, Ojha A, Overs BJ, Pfarr JK, Piras F, Ringwald KG, Roberts G, Romer G, Sanches M, Sheridan MA, Soares JC, Spalletta G, Stein F, Teresi GI, Tordesillas-Gutiérrez D, Uyar-Demir A, van der Wee NJA, van der Werff SJ, Vermeiren RRJM, Winter A, Wu MJ, Yang TT, Thompson PM, Rentería ME, Jahanshad N, Blumberg HP, van Harmelen AL, and Schmaal L

Subjects
Adolescent, Humans, Brain, Neuroimaging methods, Mood Disorders, Suicidal Ideation, Suicide, Attempted
Abstract

Identifying brain alterations associated with suicidal thoughts and behaviors (STBs) in young people is critical to understanding their development and improving early intervention and prevention. The ENIGMA Suicidal Thoughts and Behaviours (ENIGMA-STB) consortium analyzed neuroimaging data harmonized across sites to examine brain morphology associated with STBs in youth. We performed analyses in three separate stages, in samples ranging from most to least homogeneous in terms of suicide assessment instrument and mental disorder. First, in a sample of 577 young people with mood disorders, in which STBs were assessed with the Columbia Suicide Severity Rating Scale (C-SSRS). Second, in a sample of young people with mood disorders, in which STB were assessed using different instruments, MRI metrics were compared among healthy controls without STBs (HC; N = 519), clinical controls with a mood disorder but without STBs (CC; N = 246) and young people with current suicidal ideation (N = 223). In separate analyses, MRI metrics were compared among HCs (N = 253), CCs (N = 217), and suicide attempters (N = 64). Third, in a larger transdiagnostic sample with various assessment instruments (HC = 606; CC = 419; Ideation = 289; HC = 253; CC = 432; Attempt=91). In the homogeneous C-SSRS sample, surface area of the frontal pole was lower in young people with mood disorders and a history of actual suicide attempts (N = 163) than those without a lifetime suicide attempt (N = 323; FDR-p = 0.035, Cohen's d = 0.34). No associations with suicidal ideation were found. When examining more heterogeneous samples, we did not observe significant associations. Lower frontal pole surface area may represent a vulnerability for a (non-interrupted and non-aborted) suicide attempt; however, more research is needed to understand the nature of its relationship to suicide risk., (© 2022. Crown.)

Published
2022
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2. Smaller caudate gray matter volume is associated with greater implicit suicidal ideation in depressed adolescents.

Author

Ho TC, Teresi GI, Ojha A, Walker JC, Kirshenbaum JS, Singh MK, and Gotlib IH

Subjects
Adolescent, Cerebral Cortex, Corpus Striatum, Humans, Putamen diagnostic imaging, Gray Matter diagnostic imaging, Suicidal Ideation
Abstract

Background: Objective biomarkers of cognitive vulnerabilities related to suicidal ideation (SI) may assist in early prevention in adolescents. Previously, we found that smaller gray matter volumes (GMVs) of the dorsal striatum prospectively predicted implicit SI, measured using a computerized implicit association test (IAT) assessing associations between "self" and "death," in a community sample of adolescents. Here, we sought to replicate these findings in an independent sample of depressed adolescents., Methods: 53 depressed adolescents who varied in severity of suicidal thoughts and behaviors completed high-resolution structural MRI. Caudate, putamen, and nucleus accumbens GMVs were estimated using FreeSurfer 6.0. Robust linear regressions were used to examine associations between striatal GMVs and implicit and explicit SI, covarying for sex, age, total intracranial volume, medication use, and depression severity. Significance was determined using Bonferroni correction. Finally, LASSO regression was used to identify which striatal GMV contributed most to prediction of implicit SI., Results: Smaller bilateral caudate and right nucleus accumbens GMVs were associated with higher IAT scores (all ps<0.001). Smaller putamen and nucleus accumbens GMVs were not associated with implicit or explicit SI. Our LASSO analysis indicated that right caudate GMV contributed most to the prediction of IAT scores., Conclusions: This study is the first to demonstrate that caudate GMVs are significantly associated with implicit self-associations with death in a sample of depressed adolescents. When considered with our previous work, smaller caudate GMVs may be a robust biomarker of implicit SI in adolescents, with clinical implications for early identification of youth at risk for engaging in suicidal behaviors., (Copyright © 2020. Published by Elsevier B.V.)

Published
2021
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3. Structural brain alterations associated with suicidal thoughts and behaviors in young people: results from 21 international studies from the ENIGMA Suicidal Thoughts and Behaviours consortium

Author

van Velzen, Laura, Dauvermann, Maria, Colic, Lejla, Villa, Luca, Savage, Hannah, Toenders, Yara, Zhu, Alyssa, Bright, Joanna, Campos, Adrián, Salminen, Lauren, Ambrogi, Sonia, Ayesa-Arriola, Rosa, Banaj, Nerisa, Başgöze, Zeynep, Bauer, Jochen, Blair, Karina, Blair, Robert James, Brosch, Katharina, Cheng, Yuqi, Colle, Romain, Connolly, Colm, Corruble, Emmanuelle, Couvy-Duchesne, Baptiste, Crespo-Facorro, Benedicto, Cullen, Kathryn, Dannlowski, Udo, Davey, Christopher, Dohm, Katharina, Fullerton, Janice, Gonul, Ali Saffet, Gotlib, Ian, Grotegerd, Dominik, Hahn, Tim, Harrison, Ben, He, Mengxin, Hickie, Ian, Ho, Tiffany, Iorfino, Frank, Jansen, Andreas, Jollant, Fabrice, Kircher, Tilo, Klimes-Dougan, Bonnie, Klug, Melissa, Leehr, Elisabeth, Lippard, Elizabeth, Mclaughlin, Katie, Meinert, Susanne, Miller, Adam Bryant, Mitchell, Philip, Mwangi, Benson, Nenadić, Igor, Ojha, Amar, Overs, Bronwyn, Pfarr, Julia-Katharina, Piras, Fabrizio, Ringwald, Kai, Roberts, Gloria, Romer, Georg, Sanches, Marsal, Sheridan, Margaret, Soares, Jair, Spalletta, Gianfranco, Stein, Frederike, Teresi, Giana, Tordesillas-Gutiérrez, Diana, Uyar-Demir, Aslihan, van der Wee, Nic, van der Werff, Steven, Vermeiren, Robert, Winter, Alexandra, Wu, Mon-Ju, Yang, Tony, Thompson, Paul, Rentería, Miguel, Jahanshad, Neda, Blumberg, Hilary, van Harmelen, Anne-Laura, Schmaal, Lianne, Instituto de Investigación Marqués de Valdecilla, German Research Foundation, National Institutes of Health (US), European Commission, van Velzen, Laura S [0000-0002-6003-5227], Dauvermann, Maria R [0000-0002-2873-8512], Villa, Luca M [0000-0001-5091-6410], Toenders, Yara J [0000-0002-4117-1143], Campos, Adrián I [0000-0003-3468-8619], Ambrogi, Sonia [0000-0002-2897-358X], Ayesa-Arriola, Rosa [0000-0003-0570-5352], Başgöze, Zeynep [0000-0002-0306-4849], Bauer, Jochen [0000-0001-9345-2126], Brosch, Katharina [0000-0002-0526-8095], Connolly, Colm G [0000-0002-4051-3682], Cullen, Kathryn R [0000-0001-9631-3770], Dannlowski, Udo [0000-0001-7117-2908], Davey, Christopher G [0000-0003-1431-3852], Fullerton, Janice M [0000-0003-4014-4490], Gonul, Ali Saffet [0000-0003-3522-1359], Hahn, Tim [0000-0001-6541-3795], He, Mengxin [0000-0003-2714-3565], Hickie, Ian B [0000-0001-8832-9895], Ho, Tiffany C [0000-0002-4500-6364], Ojha, Amar [0000-0002-1038-0225], Overs, Bronwyn J [0000-0002-7138-5556], Piras, Fabrizio [0000-0003-3566-5494], Ringwald, Kai G [0000-0001-5886-6745], Sanches, Marsal [0000-0002-6993-6822], Soares, Jair C [0000-0002-5466-5628], Spalletta, Gianfranco [0000-0002-7432-4249], Tordesillas-Gutiérrez, Diana [0000-0003-1458-3932], Uyar-Demir, Aslihan [0000-0002-0856-4260], Winter, Alexandra [0000-0003-3759-1425], Wu, Mon-Ju [0000-0002-0540-8027], Rentería, Miguel E [0000-0003-4626-7248], Blumberg, Hilary P [0000-0002-6363-4698], Apollo - University of Cambridge Repository, Neurology, Developmental Neuroscience in Society, University of Melbourne, University of Cambridge [UK] (CAM), Yale School of Medicine [New Haven, Connecticut] (YSM), University of Southern California (USC), University of Queensland [Brisbane], Fondazione Santa Lucia [IRCCS], Clinical and Behavioral Neurology [IRCCS Santa Lucia], Universidad de Cantabria [Santander], University of Minnesota Medical School, University of Minnesota System, Westfälische Wilhelms-Universität Münster = University of Münster (WWU), Boys Town National Research Hospital [Omaha], Philipps Universität Marburg = Philipps University of Marburg, Kunming Medical University (KMU), Université Paris-Saclay, Florida State University [Tallahassee] (FSU), Centre de recherche en épidémiologie et santé des populations (CESP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Algorithms, models and methods for images and signals of the human brain (ARAMIS), Sorbonne Université (SU)-Inria de Paris, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Institut du Cerveau = Paris Brain Institute (ICM), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institute for Molecular Bioscience, Universidad de Sevilla / University of Sevilla, University of New South Wales [Kensington], Ege University [Izmir], Stanford University, The University of Sydney, University of Texas at Austin [Austin], Harvard University, University of North Carolina [Chapel Hill] (UNC), University of North Carolina System (UNC), University of Texas Health Science Center, The University of Texas Health Science Center at Houston (UTHealth), University of Pittsburgh Medical Center [Pittsburgh, PA, États-Unis] (UPMC), Neuroscience Research Australia (NeuRA), Hospital Universitario Marqués de Valdecilla [Santander], Leiden University Medical Center (LUMC), Universiteit Leiden, University of California [San Francisco] (UC San Francisco), University of California (UC), and Keck School of Medicine [Los Angeles]

Subjects
Cortical Thickness, History, Adolescent, Volume, Mood Disorders, [SCCO.NEUR]Cognitive science/Neuroscience, Brain, Suicide, Attempted, Neuroimaging, Adolescents, Reliability, Suicidal Ideation, Sample, Regions, Cellular and Molecular Neuroscience, Psychiatry and Mental health, SDG 3 - Good Health and Well-being, Bipolar, Adults, Humans, Molecular Biology, Gray
Abstract

Funder: MQ Brighter Futures Award MQBFC/2 and the U.S. National Institute of Mental Health under Award Number R01MH117601. National Suicide Prevention Research Fund, managed by Suicide Prevention Australia, Funder: MQ Brighter Futures Award MQBFC/2. Interdisziplinäres Zentrum für Klinische Forschung, UKJ, Funder: Italian Ministry of Health grant RC17-18-19-20-21/A, Funder: Instituto de Salud Carlos III through the projects PI14/00639, PI14/00918 and PI17/01056 (Co-funded by European Regional Development Fund/European Social Fund "Investing in your future") and Fundación Instituto de Investigación Marqués de Valdecilla (NCT0235832 and NCT02534363), Funder: National Institute of Mental Health (K23MH090421), the National Alliance for Research on Schizophrenia and Depression, the University of Minnesota Graduate School, the Minnesota Medical Foundation, and the Biotechnology Research Center (P41 RR008079 to the Center for Magnetic Resonance Research), University of Minnesota, and the Deborah E. Powell Center for Women’s Health Seed Grant, University of Minnesota, Funder: Medical Leader Foundation of Yunnan Province (L2019011) and Famous Doctors Project of Yunnan Province Plan (YNWR-MY-2018-041), Funder: CJ Martin Fellowship (NHMRC app 1161356). “Investissements d’avenir” ANR-10-IAIHU-06, Funder: German Research Foundation (DFG, grant FOR2107-DA1151/5-1 and DA1151/5-2 to UD, and DFG grants HA7070/2-2, HA7070/3, HA7070/4 to TH), Funder: Australian National Health and Medical Research Council of Australia (NHMRC) Project Grants 1024570 NHMRC Career Development Fellowships (1061757), Funder: Medical Faculty Münster, Innovative Medizinische Forschung (Grant IMF KO 1218 06), Funder: Australian National Medical and Health Research Council (Program Grant 1037196 and Investigator Grant 1177991 to PBM, Project Grant 1066177 to JMF), the Lansdowne Foundation, Good Talk and the Keith Pettigrew Family Bequest (PM) Janette Mary O’Neil Research Fellowship. IHG is supported in part by R37MH101495, Funder: Australian National Health and Medical Research Council of Australia (NHMRC) Project Grants 1064643 (principal investigator, BJH) NHMRC Career Development Fellowships (1124472), Funder: National Institute of Mental Health (K01MH106805). Klingenstein Third Generation Foundation, the National Institute of Mental Health (K01MH117442), the Stanford Maternal Child Health Research Institute, and the Stanford Center for Cognitive and Neurobiological Imaging. TCH receives partial support from the Ray and Dagmar Dolby Family Fund, Funder: German Research Foundation (DFG, grant FOR2107-JA 1890/7-1 and JA 1890/7-2 to AJ, and DFG, grant FOR2107-KI588/14-1 and FOR2107-KI588/14-2 to TK), Funder: NIAAA (K01AA027573, R21AA027884) and the American Foundation for Suicide Prevention, Funder: National Institute of Mental Health (R01-MH103291), Funder: National Center for Complementary and Integrative Health (NCCIH) R21AT009173 and R61AT009864 National Center for Advancing Translational Sciences (CTSI), National Institutes of Health, through UCSF-CTSI UL1TR001872 American Foundation for Suicide Prevention (AFSP) SRG-1-141-18 UCSF Research Evaluation and Allocation Committee (REAC) and J. Jacobson Fund to TTY; by the National Institute of Mental Health (NIMH) R01MH085734 and the Brain and Behavior Research Foundation (formerly NARSAD), Funder: MQ Brighter Futures Award MQBFC/2 R61MH111929RC1MH088366, R01MH070902, R01MH069747, American Foundation for Suicide Prevention, International Bipolar Foundation, Brain and Behavior Research Foundation, For the Love of Travis Foundation and Women’s Health Research at Yale, Funder: MQ Brighter Futures Award MQBFC/2 Social Safety and Resilience programme of Leiden University, Funder: MQ Brighter Futures Award MQBFC/2 National Institute of Mental Health under Award Number R01MH117601 NHMRC Career Development Fellowship (1140764), Identifying brain alterations associated with suicidal thoughts and behaviors (STBs) in young people is critical to understanding their development and improving early intervention and prevention. The ENIGMA Suicidal Thoughts and Behaviours (ENIGMA-STB) consortium analyzed neuroimaging data harmonized across sites to examine brain morphology associated with STBs in youth. We performed analyses in three separate stages, in samples ranging from most to least homogeneous in terms of suicide assessment instrument and mental disorder. First, in a sample of 577 young people with mood disorders, in which STBs were assessed with the Columbia Suicide Severity Rating Scale (C-SSRS). Second, in a sample of young people with mood disorders, in which STB were assessed using different instruments, MRI metrics were compared among healthy controls without STBs (HC; N = 519), clinical controls with a mood disorder but without STBs (CC; N = 246) and young people with current suicidal ideation (N = 223). In separate analyses, MRI metrics were compared among HCs (N = 253), CCs (N = 217), and suicide attempters (N = 64). Third, in a larger transdiagnostic sample with various assessment instruments (HC = 606; CC = 419; Ideation = 289; HC = 253; CC = 432; Attempt=91). In the homogeneous C-SSRS sample, surface area of the frontal pole was lower in young people with mood disorders and a history of actual suicide attempts (N = 163) than those without a lifetime suicide attempt (N = 323; FDR-p = 0.035, Cohen's d = 0.34). No associations with suicidal ideation were found. When examining more heterogeneous samples, we did not observe significant associations. Lower frontal pole surface area may represent a vulnerability for a (non-interrupted and non-aborted) suicide attempt; however, more research is needed to understand the nature of its relationship to suicide risk.

Published
2022

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