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Vogelsang DA, Furman DJ, Nee DE, Pappas I, White RL, Kayser AS, D'Esposito M. Dopamine Modulates Effective Connectivity in Frontal Cortex. J Cogn Neurosci 2024; 36:155-166. [PMID: 37902578 DOI: 10.1162/jocn_a_02077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
There is increasing evidence that the left lateral frontal cortex is hierarchically organized such that higher-order regions have an asymmetric top-down influence over lower order regions. However, questions remain about the underlying neuroarchitecture of this hierarchical control organization. Within the frontal cortex, dopamine plays an important role in cognitive control functions, and we hypothesized that dopamine may preferentially influence top-down connections within the lateral frontal hierarchy. Using a randomized, double-blind, within-subject design, we analyzed resting-state fMRI data of 66 healthy young participants who were scanned once each after administration of bromocriptine (a dopamine agonist with preferential affinity for D2 receptor), tolcapone (an inhibitor of catechol-O-methyltransferase), and placebo, to determine whether dopaminergic stimulation modulated effective functional connectivity between hierarchically organized frontal regions in the left hemisphere. We found that dopaminergic drugs modulated connections from the caudal middle frontal gyrus and the inferior frontal sulcus to both rostral and caudal frontal areas. In dorsal frontal regions, effectivity connectivity strength was increased, whereas in ventral frontal regions, effective connectivity strength was decreased. These findings suggest that connections within frontal cortex are differentially modulated by dopamine, which may bias the influence that frontal regions exert over each other.
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Affiliation(s)
| | | | | | - Ioannis Pappas
- University of California
- University of Southern California
| | - Robert L White
- Washington University School of Medicine, Saint Louis, MO
| | - Andrew S Kayser
- University of California
- VA Northern California Health Care System
| | - Mark D'Esposito
- University of California
- VA Northern California Health Care System
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Chen G, Li L, Sun T, Jiang C, Xu W, Chen S, Hu C, Yue Y, Wang T, Jiang W, Yuan Y. The Interaction of LAMA2 and Duration of Illness Affects the Thickness of the Right Transverse Temporal Gyrus in Major Depressive Disorder. Neuropsychiatr Dis Treat 2023; 19:2807-2816. [PMID: 38144699 PMCID: PMC10749177 DOI: 10.2147/ndt.s435025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 12/14/2023] [Indexed: 12/26/2023] Open
Abstract
Background Depression is a heritable brain disorder. Laminin genes were recently identified to affect the brain's overall thickness through neurogenesis, differentiation, and migration in depression. This study aims to explore the effects of the LAMA2's single nucleotide polymorphisms (SNP), a subunit gene of laminin, on the detected brain regions of patients with major depressive disorder (MDD). Methods The study included 89 patients with MDD and 60 healthy controls with T1-weighted structural magnetic resonance imaging and blood samples for genotyping. The interactions between LAMA2 gene SNPs and diagnosis as well as duration of illness (DOI) were explored on brain measures controlled for age, gender, and site. Results The right transverse temporal gyrus and right parahippocampal gyrus showed reduced thickness in MDD. Almost all seven LAMA2 SNPs showed significant interactions with diagnosis on both gyrus (corrected p < 0.05 or trending). In MDD, rs6569604, rs2229848, rs2229849, rs2229850, and rs2784895 interacted with DOI on the right transverse temporal gyrus (corrected p < 0.05), but not the right parahippocampal gyrus. Conclusion The thickness of the right transverse temporal gyrus in patients with MDD may be affected by LAMA2 gene and DOI.
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Affiliation(s)
- Gang Chen
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Institute of Psychosomatics, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Department of Medical Psychology, Huai’an NO 3 People’s Hospital, Huaian, People’s Republic of China
| | - Lei Li
- Institute of Psychosomatics, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Department of Sleep Medicine, The Fourth People’s Hospital of Lianyungang, Lianyungang, People’s Republic of China
| | - Taipeng Sun
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Institute of Psychosomatics, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Department of Medical Psychology, Huai’an NO 3 People’s Hospital, Huaian, People’s Republic of China
| | - Chenguang Jiang
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Institute of Psychosomatics, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
| | - Wei Xu
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Institute of Psychosomatics, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
| | - Suzhen Chen
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Institute of Psychosomatics, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
| | - Changchun Hu
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
| | - Yingying Yue
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Institute of Psychosomatics, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
| | - Tianyu Wang
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Institute of Psychosomatics, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
| | - Wenhao Jiang
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Institute of Psychosomatics, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
| | - Yonggui Yuan
- Department of Psychosomatics and Psychiatry, ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
- Institute of Psychosomatics, School of Medicine, Southeast University, Nanjing, Jiangsu, People’s Republic of China
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Taylor CM, Furman DJ, Berry AS, White RL, Jagust WJ, D’Esposito M, Jacobs EG. Striatal dopamine synthesis and cognitive flexibility differ between hormonal contraceptive users and nonusers. Cereb Cortex 2023; 33:8485-8495. [PMID: 37160338 PMCID: PMC10321119 DOI: 10.1093/cercor/bhad134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/24/2023] [Accepted: 03/26/2023] [Indexed: 05/11/2023] Open
Abstract
In rodents and nonhuman primates, sex hormones are powerful modulators of dopamine (DA) neurotransmission. Yet less is known about hormonal regulation of the DA system in the human brain. Using positron emission tomography (PET), we address this gap by comparing hormonal contraceptive users and nonusers across multiple aspects of DA function: DA synthesis capacity via the PET radioligand 6-[18F]fluoro-m-tyrosine ([18F]FMT), baseline D2/3 receptor binding potential using [11C]raclopride, and DA release using methylphenidate-paired [11C]raclopride. Participants consisted of 36 healthy women (n = 15 hormonal contraceptive users; n = 21 naturally cycling/non users of hormonal contraception), and men (n = 20) as a comparison group. A behavioral index of cognitive flexibility was assessed prior to PET imaging. Hormonal contraceptive users exhibited greater DA synthesis capacity than NC participants, particularly in dorsal caudate, and greater cognitive flexibility. Furthermore, across individuals, the magnitude of striatal DA synthesis capacity was associated with cognitive flexibility. No group differences were observed in D2/3 receptor binding or DA release. Analyses by sex alone may obscure underlying differences in DA synthesis tied to women's hormone status. Hormonal contraception (in the form of pill, shot, implant, ring, or intrauterine device) is used by ~400 million women worldwide, yet few studies have examined whether chronic hormonal manipulations impact basic properties of the DA system. Findings from this study begin to address this critical gap in women's health.
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Affiliation(s)
- Caitlin M Taylor
- Department of Psychological & Brain Sciences, University of California, Santa Barbara, CA 93106, United States
| | - Daniella J Furman
- Department of Neurology, University of California San Francisco, San Francisco, CA 94143, United States
| | - Anne S Berry
- Department of Psychology, Brandeis University, Waltham, MA 02453, United States
| | - Robert L White
- Department of Neurology, Washington University School of Medicine, St. Louis, MO 63112, United States
| | - William J Jagust
- Helen Wills Neuroscience Institute, University of California Berkeley, Berkeley, CA 94720, United States
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States
| | - Mark D’Esposito
- Helen Wills Neuroscience Institute, University of California Berkeley, Berkeley, CA 94720, United States
- Department of Psychology, University of California Berkeley, Berkeley, CA 94720, United States
| | - Emily G Jacobs
- Department of Psychological & Brain Sciences, University of California, Santa Barbara, CA 93106, United States
- Neuroscience Research Institute, University of California Santa Barbara, Santa Barbara, CA 93106, United States
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Xavier J, Bastos CR, Camerini L, Amaral PB, Jansen K, de Mattos Souza LD, da Silva RA, Pinheiro RT, Lara DR, Ghisleni G. Interaction between COMT Val 158 Met polymorphism and childhood trauma predicts risk for depression in men. Int J Dev Neurosci 2022; 82:385-396. [PMID: 35441426 DOI: 10.1002/jdn.10186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 02/28/2022] [Accepted: 04/03/2022] [Indexed: 11/08/2022] Open
Abstract
Depression is a disabling illness with complex etiology. While the Catechol-O-Methyltransferase (COMT) gene, in particular the functional Val158 Met polymorphism, has been related to depression, the mechanisms underlying this gene-disease association are not completely understood. Therefore, we explore the association of COMT Val158 Met polymorphism with depression as well as its interaction with childhood trauma in 1,136 young adults from a population-based study carried out in the city of Pelotas-Brazil. The diagnosis was performed through the Mini International Neuropsychiatric Interview 5.0 (MINI 5.0), and trauma was assessed with the childhood trauma questionnaire (CTQ). Total DNA was extracted and genotyped by real-time PCR and the QTLbase dataset was queried to perform large-scale quantitative trait locus (QTL) analysis. Our research showed no direct association between the Val158 Met polymorphism and the diagnosis of depression (women: χ2=0.10, d=1, p=0.751 and men: χ2=0.003, df=1 p=0.956). However, the Met-allele of the Val158 Met polymorphism modified the effect of childhood trauma in men [OR=2.58 (95% CI:1.05-6.29); p=0.038] conferring risk for depression only on those who suffer from trauma. The conditional effect from moderation analysis showed that trauma impacts the risk of depression only in men carrying the Met-allele (Effect: 0.9490, Standard Error (SE): 0.2570; p=0.0002). QTLbase and dataset for Val158 Met polymorphism were consistent for markers that influence chromatin accessibility transcription capacity including histone methylation and acetylation. The changes caused in gene regulation by childhood trauma exposure and polymorphism may serve as evidence of the mechanism whereby the interaction increases susceptibility to this disorder in men.
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Affiliation(s)
- Janaína Xavier
- Center of Health Sciences, Post-Graduation Program of Health and Behavior, Catholic University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Clarissa Ribeiro Bastos
- Center of Health Sciences, Post-Graduation Program of Health and Behavior, Catholic University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Laísa Camerini
- Center of Health Sciences, Post-Graduation Program of Health and Behavior, Catholic University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Paola Bajadares Amaral
- Center of Health Sciences, Post-Graduation Program of Health and Behavior, Catholic University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Karen Jansen
- Center of Health Sciences, Post-Graduation Program of Health and Behavior, Catholic University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Luciano Dias de Mattos Souza
- Center of Health Sciences, Post-Graduation Program of Health and Behavior, Catholic University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Ricardo Azevedo da Silva
- Center of Health Sciences, Post-Graduation Program of Health and Behavior, Catholic University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Ricardo Tavares Pinheiro
- Center of Health Sciences, Post-Graduation Program of Health and Behavior, Catholic University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Diogo Rizzato Lara
- Department of Cellular and Molecular Biology, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Gabriele Ghisleni
- Center of Health Sciences, Post-Graduation Program of Health and Behavior, Catholic University of Pelotas, Pelotas, Rio Grande do Sul, Brazil
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