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Ravagnani Salto AB, Santoro ML, Hoexter MQ, Jackowski AP, Pan PM, Rosário MC, Belangero SI, Alvarenga PG, Doretto VF, Fumo AMT, Batistuzzo MC, Macul Ferreira de Barros P, Timpano KR, Ota VK, Rohde LA, Miguel EC, Leckman JF, Zugman A. Obsessive-Compulsive Symptoms, Polygenic Risk Score, and Thalamic Development in Children From the Brazilian High-Risk Cohort for Mental Conditions (BHRCS). Front Psychiatry 2021; 12:673595. [PMID: 34163385 PMCID: PMC8215160 DOI: 10.3389/fpsyt.2021.673595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 05/11/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Thalamic volume measures have been linked to obsessive-compulsive disorder (OCD) in children and adolescents. However, it is unclear if alterations in thalamic volumes occur before or after symptom onset and if there is a relation to the presence of sub-clinical obsessive-compulsive symptoms (OCS). Here, we explore the relationship between OCS and the rate of thalamic volume change in a cohort of children and youth at high risk to develop a mental disorder. A secondary aim was to determine if there is a relationship between OCS and the individual's OCD polygenic risk score (OCD-PRS) and between the rate of thalamic volume change and the OCD-PRS. Methods: The sample included 378 children enrolled in the longitudinal Brazilian High-Risk Cohort for Mental Conditions. Participants were assessed for OCS and the symmetrized percent change (SPC) of thalamic volume across two time-points separated by 3 years, along with the OCD-PRS. Zero-altered negative binomial models were used to analyze the relationship between OCS and thalamic SPC. Multiple linear regressions were used to examine the relationship between thalamic SPC and OCD-PRS. Results: A significant relationship between OCS and the right thalamus SPC (p = 0.042) was found. There was no significant relationship between changes in thalamic volume SPC and OCD-PRS. Conclusions: The findings suggest that changes in the right thalamic volume over the course of 3 years in children may be associated to OCS. Future studies are needed to confirm these results and further characterize the specific nature of OCS symptoms associated with thalamic volumes.
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Affiliation(s)
| | - Marcos L Santoro
- Departamento de Morfologia e Genética, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Marcelo Q Hoexter
- Department and Institute of Psychiatry, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Andrea Parolin Jackowski
- Laboratory of Integrative Neuroscience, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Pedro M Pan
- Laboratory of Integrative Neuroscience, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Maria Conceição Rosário
- Laboratory of Integrative Neuroscience, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Sintia I Belangero
- Departamento de Morfologia e Genética, Universidade Federal de São Paulo, São Paulo, Brazil.,Laboratory of Integrative Neuroscience, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Pedro Gomes Alvarenga
- Department and Institute of Psychiatry, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Victoria Fogaça Doretto
- Department and Institute of Psychiatry, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Afonso Mazine Tiago Fumo
- Department and Institute of Psychiatry, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Marcelo C Batistuzzo
- Department and Institute of Psychiatry, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil.,Department of Methods and Techniques in Psychology, Pontifical Catholic University, São Paulo, Brazil
| | | | - Kiara R Timpano
- Department of Psychology, University of Miami, Coral Gables, FL, United States
| | - Vanessa K Ota
- Departamento de Morfologia e Genética, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Luis Augusto Rohde
- Attention-Deficit/Hyperactivity Disorder and Developmental Psychiatry Programs, Hospital de Clínicas de Porto Alegre, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | | | - James F Leckman
- Yale Child Study Centre, Yale School of Medicine, Yale University, New Haven, CT, United States
| | - André Zugman
- Laboratory of Integrative Neuroscience, Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
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