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Thirioux B, Langbour N, Bokam P, Renaudin L, Wassouf I, Harika-Germaneau G, Jaafari N. Microstates imbalance is associated with a functional dysregulation of the resting-state networks in obsessive-compulsive disorder: a high-density electrical neuroimaging study using the TESS method. Cereb Cortex 2023; 33:2593-2611. [PMID: 35739579 DOI: 10.1093/cercor/bhac229] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/13/2022] [Accepted: 05/14/2022] [Indexed: 11/14/2022] Open
Abstract
The dysfunctional patterns of microstates dynamics in obsessive-compulsive disorder (OCD) remain uncertain. Using high-density electrical neuroimaging (EEG) at rest, we explored microstates deterioration in OCD and whether abnormal microstates patterns are associated with a dysregulation of the resting-state networks interplay. We used EEG microstates analyses, TESS method for sources reconstruction, and General Linear Models to test for the effect of disease severity on neural responses. OCD patients exhibited an increased contribution and decreased duration of microstates C and D, respectively. Activity was decreased in the Salience Network (SN), associated with microstate C, but increased in the Default Mode Network (DMN) and Executive Control Network (ECN), respectively, associated with microstates E and D. The hyperactivity of the right angular gyrus in the ECN correlated with the symptoms severity. The imbalance between microstates C and D invalidates the hypothesis that this electrophysiological pattern is specific to psychosis. Demonstrating that the SN-ECN dysregulation manifests as abnormalities in microstates C and D, we confirm that the SN deterioration in OCD is accompanied by a failure of the DMN to deactivate and aberrant compensatory activation mechanisms in the ECN. These abnormalities explain typical OCD clinical features but also detachment from reality, shared with psychosis.
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Affiliation(s)
- Bérangère Thirioux
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, 86021 Poitiers, France
- CNRS 7295, Centre de Recherches sur la Cognition et l'Apprentissage, Université de Poitiers, 86021 Poitiers, France
| | - Nicolas Langbour
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, 86021 Poitiers, France
- CNRS 7295, Centre de Recherches sur la Cognition et l'Apprentissage, Université de Poitiers, 86021 Poitiers, France
| | - Prasanth Bokam
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, 86021 Poitiers, France
| | - Léa Renaudin
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, 86021 Poitiers, France
| | - Issa Wassouf
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, 86021 Poitiers, France
- CNRS 7295, Centre de Recherches sur la Cognition et l'Apprentissage, Université de Poitiers, 86021 Poitiers, France
| | - Ghina Harika-Germaneau
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, 86021 Poitiers, France
- CNRS 7295, Centre de Recherches sur la Cognition et l'Apprentissage, Université de Poitiers, 86021 Poitiers, France
- Faculté de Médecine et de Pharmacie, Université de Poitiers, 86021 Poitiers, France
| | - Nematollah Jaafari
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, 86021 Poitiers, France
- CNRS 7295, Centre de Recherches sur la Cognition et l'Apprentissage, Université de Poitiers, 86021 Poitiers, France
- Faculté de Médecine et de Pharmacie, Université de Poitiers, 86021 Poitiers, France
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Xiong Y, Chen RS, Wang XY, Li X, Dai LQ, Yu RQ. Cerebral blood flow in adolescents with drug-naive, first-episode major depressive disorder: An arterial spin labeling study based on voxel-level whole-brain analysis. Front Neurosci 2022; 16:966087. [PMID: 35968369 PMCID: PMC9363766 DOI: 10.3389/fnins.2022.966087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 07/07/2022] [Indexed: 11/13/2022] Open
Abstract
PurposeThe major depressive disorder (MDD) can be a threat to the health of people all over the world. Although governments have developed and implemented evidence-based interventions and prevention programs to prevent MDD and maintain mental health in adolescents, the number of adolescents with this condition has been on the rise for the past 10 years.MethodsA total of 60 adolescents were recruited, including 32 drug-naive adolescents with first-episode MDD and 28 healthy controls (HCs). Alterations in the intrinsic cerebral activity of the adolescents with MDD were explored using arterial spin labeling (ASL) while differences in the regional cerebral blood flow (rCBF) of the two groups were assessed based on voxel-based whole-brain analysis. Finally, correlations between the regional functional abnormalities and clinical variables were investigated for adolescents with MDD.ResultsCompared with HCs, MDD patients had a lower rCBF in the left triangular part of the inferior frontal gyrus (IFGtriang) but a higher one in the right Precental gyrus (PreCG). Negative correlations were also noted between the CBF in the left IFGtriang and the Hamilton depression scale (HAMD) scores of MDD patients.ConclusionElucidating the neurobiological features of adolescent patients with MDD is important to adequately develop methods that can assist in early diagnosis, precaution and intervention.
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Affiliation(s)
- Ying Xiong
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Hematology, Chongqing General Hospital, Chongqing, China
| | - Rong-Sheng Chen
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xing-Yu Wang
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiao Li
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lin-Qi Dai
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ren-Qiang Yu
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- *Correspondence: Ren-Qiang Yu,
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