Higher volumes of hippocampal subfields in pediatric obsessive-compulsive disorder

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art_VATTIMO_Higher_volumes_of_hippocampal_subfields_in_pediatric_obsessivecompulsive_2021.PDF (2.27 MB)
Citações na Scopus
6
Tipo de produção
article
Data de publicação
2021
DOI
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
ELSEVIER IRELAND LTD
Autores
FRUDIT, Paula
Citação
PSYCHIATRY RESEARCH-NEUROIMAGING, v.307, article ID 111200, 9p, 2021
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Differences in hippocampus volume have been identified in adult patients with obsessive-compulsive disorder (OCD). However, the role of this limbic structure in pediatric patients is unclear. This study aimed to investigate the hippocampus and its subregions in a sample of 29 children and adolescents with OCD compared to 28 healthy controls, matched for age, sex, education, and IQ. Volumetric segmentation was performed using the Freesurfer software to calculate the volumes of the subregions that reflect the hippocampal cytoarchitecture. The volumes of three anatomic subregions (tail, body, and head) were also calculated. ANCOVA was performed to investigate differences of these volumes between patients and controls, controlling for total gray matter volume. After Bonferroni correction for multiple comparisons (p-value < 0.00556 for the body and < 0.00625 for the head structures), patients presented statistically significant larger volumes of the following structures: left subiculum body; left CA4 body; left GC-DG body; left molecular layer body; right parasubiculum; left CA4 head; left molecular layer head; right subiculum head and right molecular layer head. These enlarged volumes resulted in larger left and right whole hippocampi in patients, as well as bilateral hippocampal heads and left hippocampal body (all p-values < 0.00625). There were no associations between OCD severity and hippocampal volumes. These findings diverge from previous reports on adults and may indicate that larger hippocampal volumes could reflect an early marker of OCD, not present in adults.
Palavras-chave
Pediatric obsessive-compulsive disorder, Hippocampus volume, Hippocampal subregions, Children, Youth
URI
https://observatorio.fm.usp.br/handle/OPI/39345
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MPS
Artigos e Materiais de Revistas Científicas - HC/IPq
Artigos e Materiais de Revistas Científicas - LIM/23
Artigos e Materiais de Revistas Científicas - ODS/03
Artigos e Materiais de Revistas Científicas - ODS/05