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Structural brain features signaling trauma, PTSD, or resilience? A systematic exploration.
Zilcha-Mano, Sigal; Zhu, Xi; Lazarov, Amit; Suarez-Jimenez, Benjamin; Helpman, Liat; Kim, Yoojean; Maitlin, Carly; Neria, Yuval; Rutherford, Bret R.
Afiliação
  • Zilcha-Mano S; Department of Psychology, University of Haifa, Mount Carmel, Haifa, Israel.
  • Zhu X; Department of Psychiatry, Columbia University, New York, New York, USA.
  • Lazarov A; New York State Psychiatric Institute, Columbia University Medical Center, New York, New York, USA.
  • Suarez-Jimenez B; School of Psychological Sciences, Tel-Aviv University, Tel-Aviv, Israel.
  • Helpman L; Department of Psychiatry, Columbia University Medical Center, New York, New York, USA.
  • Kim Y; New York State Psychiatric Institute, Columbia University Medical Center, New York, New York, USA.
  • Maitlin C; Department of Neuroscience, University of Rochester, Rochester, New York, USA.
  • Neria Y; Department of Counseling and Human Development, University of Haifa, Mount Carmel, Haifa, Israel.
  • Rutherford BR; Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Depress Anxiety ; 39(10-11): 695-705, 2022 10.
Article em En | MEDLINE | ID: mdl-35708133
ABSTRACT

BACKGROUND:

Studies have searched for neurobiological markers of trauma exposure, posttraumatic stress disorder (PTSD) diagnosis, and resilience to trauma to identify therapeutic targets for PTSD. Despite some promising results, findings are inconsistent.

AIMS:

The present study adopted a data-driven approach to systematically explore whether structural brain markers of trauma, PTSD, or resilience emerge when all are explored. MATERIALS &

METHODS:

Differences between clusters in the proportion of PTSD, healthy controls (HC), and trauma-exposed healthy controls (TEHC) served to indicate the presence of PTSD, trauma, and resilience markers, respectively. A total of 129 individuals, including 46 with PTSD, 49 TEHCs, and 34 HCs not exposed to trauma were scanned. Volumes, cortical thickness, and surface areas of interest were obtained from T1 structural MRI and used to identify data-driven clusters.

RESULTS:

Two clusters were identified, differing in the proportion of TEHCs but not of PTSDs or HCs. The cluster with the higher proportion of TEHCs, referred to as the resilience cluster, was characterized by higher volume in brain regions implicated in trauma exposure, especially the thalamus and rostral middle frontal gyrus. Cross-validation established the robustness and consistency of the identified clusters. DISCUSSION &

CONCLUSION:

Findings support the existence of structural brain markers of resilience.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Transtornos de Estresse Pós-Traumáticos Tipo de estudo: Prognostic_studies Limite: Humans Idioma: En Revista: Depress Anxiety Assunto da revista: PSIQUIATRIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Israel

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Transtornos de Estresse Pós-Traumáticos Tipo de estudo: Prognostic_studies Limite: Humans Idioma: En Revista: Depress Anxiety Assunto da revista: PSIQUIATRIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Israel