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Gärde M, Matheson GJ, Varnäs K, Svenningsson P, Hedman-Lagerlöf E, Lundberg J, Farde L, Tiger M. Altered Serotonin 1B Receptor Binding After Escitalopram for Depression Is Correlated With Treatment Effect. Int J Neuropsychopharmacol 2024; 27:pyae021. [PMID: 38695786 PMCID: PMC11119883 DOI: 10.1093/ijnp/pyae021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND Major depressive disorder (MDD) is commonly treated with selective serotonin reuptake inhibitors (SSRIs). SSRIs inhibit the serotonin transporter (5-HTT), but the downstream antidepressant mechanism of action of these drugs is poorly understood. The serotonin 1B (5-HT1B) receptor is functionally linked to 5-HTT and 5-HT1B receptor binding and 5-HT1B receptor mRNA is reduced in the raphe nuclei after SSRI administration in primates and rodents, respectively. The effect of SSRI treatment on 5-HT1B receptor binding in patients with MDD has not been examined previously. This positron emission tomography (PET) study aimed to quantify brain 5-HT1B receptor binding changes in vivo after SSRI treatment for MDD in relation to treatment effect. METHODS Eight unmedicated patients with moderate to severe MDD underwent PET with the 5-HT1B receptor radioligand [11C]AZ10419369 before and after 3 to 4 weeks of treatment with the SSRI escitalopram 10 mg daily. Depression severity was assessed at time of PET and after 6 to 7 weeks of treatment with the Montgomery-Åsberg Depression Rating Scale. RESULTS We observed a significant reduction in [11C]AZ10419369 binding in a dorsal brainstem (DBS) region containing the median and dorsal raphe nuclei after escitalopram treatment (P = .036). Change in DBS [11C]AZ10419369 binding correlated with Montgomery-Åsberg Depression Rating Scale reduction after 3-4 (r = 0.78, P = .021) and 6-7 (r = 0.94, P < .001) weeks' treatment. CONCLUSIONS Our findings align with the previously reported reduction of 5-HT1B receptor binding in the raphe nuclei after SSRI administration and support future studies testing change in DBS 5-HT1B receptor binding as an SSRI treatment response marker.
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Affiliation(s)
- M Gärde
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden
| | - G J Matheson
- Department of Psychiatry, Columbia University, New York, USA
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden
| | - K Varnäs
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden
| | - P Svenningsson
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden
| | - E Hedman-Lagerlöf
- Division of Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - J Lundberg
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden
| | - L Farde
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden
| | - M Tiger
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden
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Matheson GJ, Zanderigo F, Miller JM, Bartlett EA, Mann JJ, Ogden RT. PET Imaging of the Serotonin 1A Receptor in Major Depressive Disorder: Hierarchical Multivariate Analysis of [ 11C]WAY100635 Overcomes Outcome Measure Discrepancies. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.12.584569. [PMID: 38559101 PMCID: PMC10980040 DOI: 10.1101/2024.03.12.584569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The serotonin 1A receptor has been linked to both the pathophysiology of major depressive disorder (MDD) and the antidepressant action of serotonin reuptake inhibitors. Most PET studies of the serotonin 1A receptor in MDD used the receptor antagonist radioligand, [carbonyl-11C]WAY100635; however the interpretation of the combined results has been contentious owing to reports of higher or lower binding in MDD with different outcome measures. The reasons for these divergent results originate from several sources, including properties of the radiotracer itself, which complicate its quantification and interpretation; as well as from previously reported differences between MDD and healthy volunteers in both reference tissue binding and plasma free fraction, which are typically assumed not to differ. Recently, we have developed two novel hierarchical multivariate methods which we validated for the quantification and analysis of [11C]WAY100635, which show better accuracy and inferential efficiency compared to standard analysis approaches. Importantly, these new methods should theoretically be more resilient to many of the factors thought to have caused the discrepancies observed in previous studies. We sought to apply these methods in the largest [11C]WAY100635 sample to date, consisting of 160 individuals, including 103 MDD patients, of whom 50 were not-recently-medicated and 53 were antidepressant-exposed, as well as 57 healthy volunteers. While the outcome measure discrepancies were substantial using conventional univariate analysis, our multivariate analysis techniques instead yielded highly consistent results across PET outcome measures and across pharmacokinetic models, with all approaches showing higher serotonin 1A autoreceptor binding potential in the raphe nuclei of not-recently-medicated MDD patients relative to both healthy volunteers and antidepressant-exposed MDD patients. Moreover, with the additional precision of estimates afforded by this approach, we can show that while binding is also higher in projection areas in this group, these group differences are approximately half of those in the raphe nuclei, which are statistically distinguishable from one another. These results are consistent with the biological role of the serotonin 1A autoreceptor in the raphe nuclei in regulating serotonin neuron firing and release, and with preclinical and clinical evidence of deficient serotonin activity in MDD due to over expression of autoreceptors resulting from genetic and/or epigenetic effects. These results are also consistent with downregulation of autoreceptors as a mechanism of action of selective serotonin reuptake inhibitors. In summary, the results using multivariate analysis approaches therefore demonstrate both face and convergent validity, and may serve to provide a resolution and consensus interpretation for the disparate results of previous studies examining the serotonin 1A receptor in MDD.
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Affiliation(s)
- Granville J. Matheson
- Department of Psychiatry, Columbia University, New York, 10032 NY, USA
- Department of Biostatistics, Columbia University Mailman School of Public Health, New York, 10032 NY, USA
- Molecular Imaging and Neuropathology Area, New York State Psychiatric Institute, New York, 10032 NY, USA
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, Stockholm, SE-171 76, Sweden
| | - Francesca Zanderigo
- Department of Psychiatry, Columbia University, New York, 10032 NY, USA
- Molecular Imaging and Neuropathology Area, New York State Psychiatric Institute, New York, 10032 NY, USA
| | - Jeffrey M. Miller
- Department of Psychiatry, Columbia University, New York, 10032 NY, USA
- Molecular Imaging and Neuropathology Area, New York State Psychiatric Institute, New York, 10032 NY, USA
| | - Elizabeth A. Bartlett
- Department of Psychiatry, Columbia University, New York, 10032 NY, USA
- Molecular Imaging and Neuropathology Area, New York State Psychiatric Institute, New York, 10032 NY, USA
| | - J. John Mann
- Department of Psychiatry, Columbia University, New York, 10032 NY, USA
- Molecular Imaging and Neuropathology Area, New York State Psychiatric Institute, New York, 10032 NY, USA
| | - R. Todd Ogden
- Department of Psychiatry, Columbia University, New York, 10032 NY, USA
- Department of Biostatistics, Columbia University Mailman School of Public Health, New York, 10032 NY, USA
- Molecular Imaging and Neuropathology Area, New York State Psychiatric Institute, New York, 10032 NY, USA
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Yu X, Chen K, Ma Y, Bai T, Zhu S, Cai D, Zhang X, Wang K, Tian Y, Wang J. Molecular basis underlying changes of brain entropy and functional connectivity in major depressive disorders after electroconvulsive therapy. CNS Neurosci Ther 2024; 30:e14690. [PMID: 38529527 PMCID: PMC10964037 DOI: 10.1111/cns.14690] [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: 10/27/2023] [Revised: 02/03/2024] [Accepted: 02/23/2024] [Indexed: 03/27/2024] Open
Abstract
INTRODUCTION Electroconvulsive therapy (ECT) is widely used for treatment-resistant depression. However, it is unclear whether/how ECT can be targeted to affect brain regions and circuits in the brain to dynamically regulate mood and cognition. METHODS This study used brain entropy (BEN) to measure the irregular levels of brain systems in 46 major depressive disorder (MDD) patients before and after ECT treatment. Functional connectivity (FC) was further adopted to reveal changes of functional couplings. Moreover, transcriptomic and neurotransmitter receptor data were used to reveal genetic and molecular basis of the changes of BEN and functional connectivities. RESULTS Compared to pretreatment, the BEN in the posterior cerebellar lobe (PCL) significantly decreased and FC between the PCL and the right temporal pole (TP) significantly increased in MDD patients after treatment. Moreover, we found that these changes of BEN and FC were closely associated with genes' expression profiles involved in MAPK signaling pathway, GABAergic synapse, and dopaminergic synapse and were significantly correlated with the receptor/transporter density of 5-HT, norepinephrine, glutamate, etc. CONCLUSION: These findings suggest that loops in the cerebellum and TP are crucial for ECT regulation of mood and cognition, which provides new evidence for the antidepressant effects of ECT and the potential molecular mechanism leading to cognitive impairment.
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Affiliation(s)
- Xiaohui Yu
- State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational MedicineKunming University of Science and TechnologyKunmingChina
- Yunnan Key Laboratory of Primate Biomedical ResearchKunmingChina
| | - Kexuan Chen
- Medical SchoolKunming University of Science and TechnologyKunmingChina
| | - Yingzi Ma
- State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational MedicineKunming University of Science and TechnologyKunmingChina
- Yunnan Key Laboratory of Primate Biomedical ResearchKunmingChina
| | - Tongjian Bai
- Department of NeurologyThe First Hospital of Anhui Medical UniversityHefeiChina
| | - Shunli Zhu
- School of Life Science and TechnologyUniversity of Electronic Science and Technology of ChinaChengduChina
| | - Defang Cai
- The Second People's Hospital of YuxiThe Affiliated Hospital of Kunming University of Science and TechnologyYuxiChina
| | - Xing Zhang
- The Second People's Hospital of YuxiThe Affiliated Hospital of Kunming University of Science and TechnologyYuxiChina
| | - Kai Wang
- Department of NeurologyThe First Hospital of Anhui Medical UniversityHefeiChina
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric DisordersHefeiChina
- School of Mental Health and Psychological SciencesAnhui Medical UniversityHefeiChina
- Collaborative Innovation Center of Neuropsychiatric Disorders and Mental HealthHefeiChina
- Anhui Province Clinical Research Center for Neurological DiseaseHefeiChina
| | - Yanghua Tian
- Department of NeurologyThe First Hospital of Anhui Medical UniversityHefeiChina
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric DisordersHefeiChina
- School of Mental Health and Psychological SciencesAnhui Medical UniversityHefeiChina
- Collaborative Innovation Center of Neuropsychiatric Disorders and Mental HealthHefeiChina
- Anhui Province Clinical Research Center for Neurological DiseaseHefeiChina
- Institute of Artificial IntelligenceHefei Comprehensive National Science CenterHefeiChina
| | - Jiaojian Wang
- State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational MedicineKunming University of Science and TechnologyKunmingChina
- Yunnan Key Laboratory of Primate Biomedical ResearchKunmingChina
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Hassan G, Kamar SA, Rady HY, Abdelrahim DS, Abdel Hay Ibrahim NH, Lasheen NN. A study of roflumilast treatment on functional and structural changes in hippocampus in depressed Adult male Wistar rats. PLoS One 2024; 19:e0296187. [PMID: 38315652 PMCID: PMC10843119 DOI: 10.1371/journal.pone.0296187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 12/04/2023] [Indexed: 02/07/2024] Open
Abstract
Depression is a common stress disability disorder that affects higher mental functions including emotion, cognition, and behavior. It may be mediated by inflammatory cytokines that interfere with neuroendocrine function, and synaptic plasticity. Therefore, reductions in inflammation might contribute to treatment response. The current study aims to evaluate the role of Protein Kinase (PKA)- cAMP response element-binding protein (CREB)- brain derived neurotropic factor (BDNF) signaling pathway in depression and the effects of roflumilast (PDE4 inhibitor) as potential antidepressant on the activity of the PKA-CREB-BDNF signaling pathway, histology, and pro-inflammatory cytokine production. Forty Adult male Wistar rats were divided into 4 groups: Control group, Positive Control group: similar to the controls but received Roflumilast (3 mg / kg / day) by oral gavage for the last 4 weeks of the experiment, Depressed group which were exposed to chronic stress for 6 weeks, and Roflumilast-treated group which were exposed to chronic stress for 6 weeks and treated by Roflumilast (3 mg / kg / day) by oral gavage for the last 4 weeks of the experiment. The depressed group showed significant increase in immobility time with significant decrease in swimming and struggling times, significant decrease in hippocampal PKA, CERB, BDNF, Dopamine, Cortisone, and Superoxide dismutase while hippocampal Phosphodiesterase-E4, Interleukin-6, and Malondialdhyde levels were significantly elevated. These findings were significantly reversed upon Roflumilast treatment. Therefore, it could be concluded that depression is a neurodegenerative inflammatory disease and oxidative stress plays a key role in depression. Roflumilast treatment attenuated the depression behavior in rats denoting its neuroprotective, and anti-inflammatory effects.
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Affiliation(s)
- Ghida Hassan
- Medical Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Sherif A. Kamar
- Anatomy Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
- Faculty of Dentistry, Al-Ahliyya Amman University, Amman, Jordan
| | - Hagar Yousry Rady
- Anatomy Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
- Anatomy Department, Armed Forces College of Medicine, Cairo, Egypt
| | - Dina Sayed Abdelrahim
- Clinical Pharmacology department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
- Pharmacology Department, Faculty of Medicine, Modern University for Technology and Information, Cairo, Egypt
| | | | - Noha N. Lasheen
- Medical Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
- Associate Professor of Physiology, Faculty of Medicine, Galala University, Suez, Egypt
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Cavanagh JT. Anti-inflammatory Drugs in the Treatment of Depression. Curr Top Behav Neurosci 2024; 66:217-231. [PMID: 38112963 DOI: 10.1007/7854_2023_459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The last two decades have seen a flourishing of research into the immunobiology of psychiatric phenotypes, in particular major depressive disorder. Both preclinical and clinical data have highlighted pathways and possible mechanisms that might link changes in immunobiology, most especially inflammation, to clinically relevant behaviour. From a therapeutics perspective, a major impetus has been the action of Biologics, often monoclonal antibodies, that target specific cytokines acting as "molecular scalpels" helping to uncover the actions of those proteins. These interventions have been associated with improvements in mood and related symptoms. There are now enough studies and participants to permit meta-analytic analyses of the actions of these and other anti-inflammatory agents.In this chapter, the focus is on the evidence for the role of inflammation biology in depression and the meta-analytic data from trials. The putative mechanisms that might underpin the antidepressant effect of anti-inflammatory drugs are also explored. Lastly, I describe the more stubborn difficulties around heterogeneity, deep phenotyping and stratification as well as improved animal models and greater understanding of the biology that might be addressed by future studies.
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Affiliation(s)
- Jonathan T Cavanagh
- Centre for Immunobiology, School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.
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Brock J, Basu N, Schlachetzki JCM, Schett G, McInnes IB, Cavanagh J. Immune mechanisms of depression in rheumatoid arthritis. Nat Rev Rheumatol 2023; 19:790-804. [PMID: 37923863 DOI: 10.1038/s41584-023-01037-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2023] [Indexed: 11/06/2023]
Abstract
Depression is a common and disabling comorbidity in rheumatoid arthritis that not only decreases the likelihood of remission and treatment adherence but also increases the risk of disability and mortality in patients with rheumatoid arthritis. Compelling data that link immune mechanisms to major depressive disorder indicate possible common mechanisms that drive the pathology of the two conditions. Preclinical evidence suggests that pro-inflammatory cytokines, which are prevalent in rheumatoid arthritis, have various effects on monoaminergic neurotransmission, neurotrophic factors and measures of synaptic plasticity. Neuroimaging studies provide insight into the consequences of inflammation on the brain (for example, on neural connectivity), and clinical trial data highlight the beneficial effects of immune modulation on comorbid depression. Major depressive disorder occurs more frequently in patients with rheumatoid arthritis than in the general population, and major depressive disorder also increases the risk of a future diagnosis of rheumatoid arthritis, further highlighting the link between rheumatoid arthritis and major depressive disorder. This Review focuses on interactions between peripheral and central immunobiological mechanisms in the context of both rheumatoid arthritis and major depressive disorder. Understanding these mechanisms will provide a basis for future therapeutic development, not least in depression.
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Affiliation(s)
- James Brock
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Neil Basu
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | | | - Georg Schett
- Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
- Universitätsklinikum Erlangen, Erlangen, Germany
| | - Iain B McInnes
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Jonathan Cavanagh
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK.
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Pinto SR, Uchida N. Tonic dopamine and biases in value learning linked through a biologically inspired reinforcement learning model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.10.566580. [PMID: 38014087 PMCID: PMC10680794 DOI: 10.1101/2023.11.10.566580] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
A hallmark of various psychiatric disorders is biased future predictions. Here we examined the mechanisms for biased value learning using reinforcement learning models incorporating recent findings on synaptic plasticity and opponent circuit mechanisms in the basal ganglia. We show that variations in tonic dopamine can alter the balance between learning from positive and negative reward prediction errors, leading to biased value predictions. This bias arises from the sigmoidal shapes of the dose-occupancy curves and distinct affinities of D1- and D2-type dopamine receptors: changes in tonic dopamine differentially alters the slope of the dose-occupancy curves of these receptors, thus sensitivities, at baseline dopamine concentrations. We show that this mechanism can explain biased value learning in both mice and humans and may also contribute to symptoms observed in psychiatric disorders. Our model provides a foundation for understanding the basal ganglia circuit and underscores the significance of tonic dopamine in modulating learning processes.
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Affiliation(s)
- Sandra Romero Pinto
- Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, Cambridge, MA 02138, USA
- Program in Speech and Hearing Bioscience and Technology, Division of Medical Sciences, Harvard Medical School, Boston, MA 02115, USA
| | - Naoshige Uchida
- Department of Molecular and Cellular Biology, Center for Brain Science, Harvard University, Cambridge, MA 02138, USA
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Villanueva-Charbonneau G, Potvin S, Marchand S, McIntyre A, McIntosh D, Bissonnette A, Gendron A, Giguère CÉ, Koué MÈ, Kouassi É. Serotonin Transporter mRNA Expression Is Reduced in the Peripheral Blood Mononuclear Cells of Subjects with Major Depression but Normal in Fibromyalgia. Brain Sci 2023; 13:1485. [PMID: 37891852 PMCID: PMC10605238 DOI: 10.3390/brainsci13101485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/14/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Fibromyalgia (FM) and major depression disorder (MDD) frequently co-occur. Both disorders may share common serotonergic alterations, although there is less evidence of such alterations in FM. It is also unclear as to whether these alterations are persistent over time or transient. The objectives of this study were to (i) examine the changes in mRNA expression of serotonin transporter (SERT) on the surface of peripheral blood mononuclear cells (PBMCs) in FM, MDD, and the FM + MDD subjects compared to healthy controls, and to (ii) evaluate the effect of drug treatment on SERT expression. METHODS PBMCs were isolated from FM, MDD, FM + MDD, and control subjects. SERT expression was analyzed at the mRNA level via quantitative real-time polymerase chain reaction. Statistical analyses were performed using analyses of variance and linear mixed-effects models. RESULTS SERT mRNA expression was significantly reduced in MDD subjects compared to controls (p < 0.001), but not in FM nor in FM + MDD subjects. Although the drug treatments improved symptoms in FM, MDD, and FM + MDD subjects, they had no significant effect on SERT mRNA expression. CONCLUSIONS These results corroborate the role of the SERT in the pathophysiology of MDD, but not in FM, and show that the decreased mRNA expression of SERT is a persistent, rather than transient, phenomenon.
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Affiliation(s)
- Gaël Villanueva-Charbonneau
- Département de Pharmacologie et Physiologie, Université de Montréal, Montréal, QC H1T 1C8, Canada
- Centre de Recherche de l’Institut Universitaire en Santé Mentale de Montréal, Montréal, QC H1N 3V2, Canada; (C.-É.G.); (É.K.)
| | - Stéphane Potvin
- Centre de Recherche de l’Institut Universitaire en Santé Mentale de Montréal, Montréal, QC H1N 3V2, Canada; (C.-É.G.); (É.K.)
- Department of Psychiatry and Addiction, University of Montreal, Montreal, QC H3T 1J4, Canada
| | - Serge Marchand
- Department of Surgery, Faculty of Medicine, University of Sherbrooke, Sherbrooke, QC J1K 2R1, Canada;
| | | | - Diane McIntosh
- Department of Psychiatry, University of British Columbia, Vancouver, BC V6T 1Z4, Canada;
| | | | - Alain Gendron
- AstraZeneca Pharmaceuticals, Mississauga, ON L4Y 1M4, Canada;
| | - Charles-Édouard Giguère
- Centre de Recherche de l’Institut Universitaire en Santé Mentale de Montréal, Montréal, QC H1N 3V2, Canada; (C.-É.G.); (É.K.)
| | - Marie-Ève Koué
- Department of Biochemistry and Molecular Medicine, University of Montreal, Montreal, QC H3T 1J4, Canada;
| | - Édouard Kouassi
- Centre de Recherche de l’Institut Universitaire en Santé Mentale de Montréal, Montréal, QC H1N 3V2, Canada; (C.-É.G.); (É.K.)
- Department of Medicine and Medical Specialities, University of Montreal, Montreal, QC H3T 1J4, Canada
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Li SJ, Lo YC, Tseng HY, Lin SH, Kuo CH, Chen TC, Chang CW, Liang YW, Lin YC, Wang CY, Cho TY, Wang MH, Chen CT, Chen YY. Nucleus accumbens deep brain stimulation improves depressive-like behaviors through BDNF-mediated alterations in brain functional connectivity of dopaminergic pathway. Neurobiol Stress 2023; 26:100566. [PMID: 37664874 PMCID: PMC10474237 DOI: 10.1016/j.ynstr.2023.100566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 08/14/2023] [Accepted: 08/19/2023] [Indexed: 09/05/2023] Open
Abstract
Major depressive disorder (MDD), a common psychiatric condition, adversely affects patients' moods and quality of life. Despite the development of various treatments, many patients with MDD remain vulnerable and inadequately controlled. Since anhedonia is a feature of depression and there is evidence of leading to metabolic disorder, deep brain stimulation (DBS) to the nucleus accumbens (NAc) might be promising in modulating the dopaminergic pathway. To determine whether NAc-DBS alters glucose metabolism via mitochondrial alteration and neurogenesis and whether these changes increase neural plasticity that improves behavioral functions in a chronic social defeat stress (CSDS) mouse model. The Lab-designed MR-compatible neural probes were implanted in the bilateral NAc of C57BL/6 mice with and without CSDS, followed by DBS or sham stimulation. All animals underwent open-field and sucrose preference testing, and brain resting-state functional MRI analysis. Meanwhile, we checked the placement of neural probes in each mouse by T2 images. By confirming the placement location, mice with incorrect probe placement (the negative control group) showed no significant therapeutic effects in behavioral performance and functional connectivity (FC) after receiving electrical stimulation and were excluded from further analysis. Western blotting, seahorse metabolic analysis, and electron microscopy were further applied for the investigation of NAc-DBS. We found NAc-DBS restored emotional deficits in CSDS-subjected mice. Concurrent with behavioral amelioration, the CSDS DBS-on group exhibited enhanced FC in the dopaminergic pathway with increased expression of BDNF- and NeuN-positive cells increased dopamine D1 receptor, dopamine D2 receptors, and TH in the medial prefrontal cortex, NAc, ventral hippocampus, ventral tegmental area, and amygdala. Increased pAMPK/total AMPK and PGC-1α levels, functions of oxidative phosphorylation, and mitochondrial biogenesis were also observed after NAc-DBS treatment. Our findings demonstrate that NAc-DBS can promote BDNF expression, which alters FC and metabolic profile in the dopaminergic pathway, suggesting a potential strategy for ameliorating emotional processes in individuals with MDD.
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Affiliation(s)
- Ssu-Ju Li
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No.155, Sec. 2, Linong St., Taipei, 112304, Taiwan, ROC
| | - Yu-Chun Lo
- The Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, No. 250 Wu-Xing St., Taipei, 11031, Taiwan, ROC
| | - Hsin-Yi Tseng
- The Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University and National Health Research Institutes, Taipei, 11031, Taiwan, ROC
| | - Sheng-Huang Lin
- Department of Neurology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 707, Sec. 3, Zhongyang Rd., Hualien, 97002, Taiwan, ROC
- Department of Neurology, School of Medicine, Tzu Chi University, No. 701, Sec. 3, Zhongyang Rd., Hualien, 97004, Taiwan, ROC
| | - Chao-Hung Kuo
- Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Taipei, 11217, Taiwan, ROC
| | - Ting-Chieh Chen
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No.155, Sec. 2, Linong St., Taipei, 112304, Taiwan, ROC
| | - Ching-Wen Chang
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No.155, Sec. 2, Linong St., Taipei, 112304, Taiwan, ROC
- Institute of Biomedical Sciences, Academia Sinica, No. 128, Sec. 2, Academia Rd., Taipei, 115024, Taiwan
| | - Yao-Wen Liang
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No.155, Sec. 2, Linong St., Taipei, 112304, Taiwan, ROC
| | - Yi-Chen Lin
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No.155, Sec. 2, Linong St., Taipei, 112304, Taiwan, ROC
| | - Chih-Yu Wang
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No.155, Sec. 2, Linong St., Taipei, 112304, Taiwan, ROC
| | - Tsai-Yu Cho
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No.155, Sec. 2, Linong St., Taipei, 112304, Taiwan, ROC
| | - Mu-Hua Wang
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No.155, Sec. 2, Linong St., Taipei, 112304, Taiwan, ROC
| | - Ching-Te Chen
- Abbott Medical Taiwan Co, 5/F No. 407, Ruei-Guang Rd., Taipei, 11492, Taiwan, ROC
| | - You-Yin Chen
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, No.155, Sec. 2, Linong St., Taipei, 112304, Taiwan, ROC
- The Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, No. 250 Wu-Xing St., Taipei, 11031, Taiwan, ROC
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Ji GJ, Li J, Liao W, Wang Y, Zhang L, Bai T, Zhang T, Xie W, He K, Zhu C, Dukart J, Baeken C, Tian Y, Wang K. Neuroplasticity-Related Genes and Dopamine Receptors Associated with Regional Cortical Thickness Increase Following Electroconvulsive Therapy for Major Depressive Disorder. Mol Neurobiol 2023; 60:1465-1475. [PMID: 36469225 DOI: 10.1007/s12035-022-03132-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 11/08/2022] [Indexed: 12/08/2022]
Abstract
Electroconvulsive therapy (ECT) is an effective neuromodulatory therapy for major depressive disorder (MDD). Treatment is associated with regional changes in brain structure and function, indicating activation of neuroplastic processes. To investigate the underlying neurobiological mechanism of macroscopic reorganization following ECT, we longitudinally (before and after ECT in two centers) collected magnetic resonance images for 96 MDD patients. Similar patterns of cortical thickness (CT) changes following ECT were observed in two centers. These CT changes were spatially colocalized with a weighted combination of genes enriched for neuroplasticity-related ontology terms and pathways (e.g., synaptic pruning) as well as with a higher density of D2/3 dopamine receptors. A multiple linear regression model indicated that the region-specific gene expression and receptor density patterns explained 40% of the variance in CT changes after ECT. In conclusion, these findings suggested that dopamine signaling and neuroplasticity-related genes are associated with the ECT-induced morphological reorganization.
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Affiliation(s)
- Gong-Jun Ji
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, The School of Mental Health and Psychological Sciences, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei, 230032, China. .,Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, 230088, China. .,Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, 230032, China. .,Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Anhui Province, Hefei, 230032, China.
| | - Jiao Li
- The Clinical Hospital of Chengdu Brain Science Institute, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610000, China.,MOE Key Lab for Neuroinformation, High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, 610000, China
| | - Wei Liao
- The Clinical Hospital of Chengdu Brain Science Institute, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610000, China.,MOE Key Lab for Neuroinformation, High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, 610000, China
| | - Yingru Wang
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, The School of Mental Health and Psychological Sciences, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei, 230032, China.,Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, 230088, China.,Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, 230032, China.,Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Anhui Province, Hefei, 230032, China
| | - Lei Zhang
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, The School of Mental Health and Psychological Sciences, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei, 230032, China.,Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, 230032, China.,Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Anhui Province, Hefei, 230032, China
| | - Tongjian Bai
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, The School of Mental Health and Psychological Sciences, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei, 230032, China.,Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, 230088, China.,Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, 230032, China.,Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Anhui Province, Hefei, 230032, China
| | - Ting Zhang
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, 230088, China.,Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, 230032, China.,Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Anhui Province, Hefei, 230032, China.,Department of Psychiatry, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wen Xie
- Department of Psychiatry, Anhui Mental Health Center, Hefei, 230022, China
| | - Kongliang He
- Department of Psychiatry, Anhui Mental Health Center, Hefei, 230022, China
| | - Chuyan Zhu
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, The School of Mental Health and Psychological Sciences, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei, 230032, China.,Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, 230088, China.,Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, 230032, China.,Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Anhui Province, Hefei, 230032, China
| | - Juergen Dukart
- Institute of Neuroscience and Medicine, Brain and Behaviour, Research Centre Jülich, INM-7), Jülich, Germany.,Institute of Systems Neuroscience, Medical Faculty, Heinrich Heine University Düsseldorf, 40210, Düsseldorf, Germany
| | - Chris Baeken
- Experimental Psychiatry Lab, Department of Head and Skin, Ghent University, Ghent, Belgium.,Department of Psychiatry, Free University Brussels, Brussels, Belgium.,Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Yanghua Tian
- Department of Neurology, The Second Affiliated Hospital of Anhui Medical University , Hefei, China.
| | - Kai Wang
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, The School of Mental Health and Psychological Sciences, Anhui Medical University, No. 81 Meishan Road, Shushan District, Hefei, 230032, China. .,Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, 230088, China. .,Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders, Hefei, 230032, China. .,Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health, Anhui Province, Hefei, 230032, China. .,Anhui Institute of Translational Medicine, Hefei, China.
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PET imaging of animal models with depressive-like phenotypes. Eur J Nucl Med Mol Imaging 2023; 50:1564-1584. [PMID: 36642759 PMCID: PMC10119194 DOI: 10.1007/s00259-022-06073-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 12/03/2022] [Indexed: 01/17/2023]
Abstract
Major depressive disorder is a growing and poorly understood pathology. Due to technical and ethical limitations, a significant proportion of the research on depressive disorders cannot be performed on patients, but needs to be investigated in animal paradigms. Over the years, animal studies have provided new insight in the mechanisms underlying depression. Several of these studies have used PET imaging for the non-invasive and longitudinal investigation of the brain physiology. This review summarises the findings of preclinical PET imaging in different experimental paradigms of depression and compares these findings with observations from human studies. Preclinical PET studies in animal models of depression can be divided into three main different approaches: (a) investigation of glucose metabolism as a biomarker for regional and network involvement, (b) evaluation of the availability of different neuroreceptor populations associated with depressive phenotypes, and (c) monitoring of the inflammatory response in phenotypes of depression. This review also assesses the relevance of the use of PET imaging techniques in animal paradigms for the understanding of specific aspects of the depressive-like phenotypes, in particular whether it might contribute to achieve a more detailed characterisation of the clinical depressive phenotypes for the development of new therapies for depression.
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12
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García-Gutiérrez MS, Navarro D, Austrich-Olivares A, Manzanares J. Unveiling behavioral and molecular neuroadaptations related to the antidepressant action of cannabidiol in the unpredictable chronic mild stress model. Front Pharmacol 2023; 14:1171646. [PMID: 37144214 PMCID: PMC10151764 DOI: 10.3389/fphar.2023.1171646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 04/03/2023] [Indexed: 05/06/2023] Open
Abstract
Introduction: This study aims to further characterize cannabidiol's pharmacological and molecular profile as an antidepressant. Methods: Effects of cannabidiol (CBD), alone or combined with sertraline (STR), were evaluated in male CD1 mice (n = 48) exposed to an unpredictable chronic mild stress (UCMS) procedure. Once the model was established (4 weeks), mice received CBD (20 mg·kg-1, i.p.), STR (10 mg·kg-1, p.o.) or its combination for 28 days. The efficacy of CBD was evaluated using the light-dark box (LDB), elevated plus maze (EPM), tail suspension (TS), sucrose consumption (SC) and novel object recognition (NOR) tests. Gene expression changes in the serotonin transporter, 5-HT1A and 5-HT2A receptors, BDNF, VGlut1 and PPARdelta, were evaluated in the dorsal raphe, hippocampus (Hipp) and amygdala by real-time PCR. Besides, BDNF, NeuN and caspase-3 immunoreactivity were assessed in the Hipp. Results: CBD exerted anxiolytic and antidepressant-like effects at 4 and 7 days of treatment in the LDB and TS tests, respectively. In contrast, STR required 14 days of treatment to show efficacy. CBD improved cognitive impairment and anhedonia more significantly than STR. CBD plus STR showed a similar effect than CBD in the LBD, TST and EPM. However, a worse outcome was observed in the NOR and SI tests. CBD modulates all molecular disturbances induced by UCMS, whereas STR and the combination could not restore 5-HT1A, BDNF and PPARdelta in the Hipp. Discussion: These results pointed out CBD as a potential new antidepressant with faster action and efficiency than STR. Particular attention should be given to the combination of CBD with current SSRI since it appears to produce a negative impact on treatment.
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Affiliation(s)
- María Salud García-Gutiérrez
- Instituto de Neurociencias, Universidad Miguel Hernández, Alicante, Spain
- Research Network on Primary Addictions, Instituto de Salud Carlos III, MICINN and FEDER, Madrid, Spain
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain
| | - Daniela Navarro
- Instituto de Neurociencias, Universidad Miguel Hernández, Alicante, Spain
- Research Network on Primary Addictions, Instituto de Salud Carlos III, MICINN and FEDER, Madrid, Spain
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain
| | | | - Jorge Manzanares
- Instituto de Neurociencias, Universidad Miguel Hernández, Alicante, Spain
- Research Network on Primary Addictions, Instituto de Salud Carlos III, MICINN and FEDER, Madrid, Spain
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), Alicante, Spain
- *Correspondence: Jorge Manzanares,
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13
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Erritzoe D, Godlewska BR, Rizzo G, Searle GE, Agnorelli C, Lewis Y, Ashok AH, Colasanti A, Boura I, Farrell C, Parfitt H, Howes O, Passchier J, Gunn RN, Politis M, Nutt DJ, Cowen PJ, Knudsen GM, Rabiner EA. Brain Serotonin Release Is Reduced in Patients With Depression: A [ 11C]Cimbi-36 Positron Emission Tomography Study With a d-Amphetamine Challenge. Biol Psychiatry 2022:S0006-3223(22)01704-8. [PMID: 36635177 DOI: 10.1016/j.biopsych.2022.10.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/03/2022] [Accepted: 10/21/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND The serotonin hypothesis of depression proposes that diminished serotonergic (5-HT) neurotransmission is causal in the pathophysiology of the disorder. Although the hypothesis is over 50 years old, there is no firm in vivo evidence for diminished 5-HT neurotransmission. We recently demonstrated that the 5-HT2A receptor agonist positron emission tomography (PET) radioligand [11C]Cimbi-36 is sensitive to increases in extracellular 5-HT induced by an acute d-amphetamine challenge. Here we applied [11C]Cimbi-36 PET to compare brain 5-HT release capacity in patients experiencing a major depressive episode (MDE) to that of healthy control subjects (HCs) without depression. METHODS Seventeen antidepressant-free patients with MDE (3 female/14 male, mean age 44 ± 13 years, Hamilton Depression Rating Scale score 21 ± 4 [range 16-30]) and 20 HCs (3 female/17 male, mean age 32 ± 9 years) underwent 90-minute dynamic [11C]Cimbi-36 PET before and 3 hours after a 0.5-mg/kg oral dose of d-amphetamine. Frontal cortex (main region of interest) 5-HT2A receptor nondisplaceable binding was calculated from kinetic analysis using the multilinear analysis-1 approach with the cerebellum as the reference region. RESULTS Following d-amphetamine administration, frontal nondisplaceable binding potential (BPND) was significantly reduced in the HC group (1.04 ± 0.31 vs. 0.87 ± 0.24, p < .001) but not in the MDE group (0.97 ± 0.25 vs. 0.92 ± 0.22, not significant). ΔBPND of the MDE group was significantly lower than that of the HC group (HC: 15% ± 14% vs. MDE: 6.5% ± 20%, p = .041). CONCLUSIONS This first direct assessment of 5-HT release capacity in people with depression provides clear evidence for dysfunctional serotonergic neurotransmission in depression by demonstrating reduced 5-HT release capacity in patients experiencing an MDE.
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Affiliation(s)
- David Erritzoe
- Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, United Kingdom.
| | - Beata R Godlewska
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | | | | | - Claudio Agnorelli
- Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, United Kingdom; Department of Molecular Medicine, University of Siena, Siena, Italy
| | | | - Abhishekh H Ashok
- Department of Psychosis Studies, King's College London, London, United Kingdom; Department of Radiology, University of Cambridge & Addenbrooke's Hospital, Cambridge, United Kingdom
| | | | - Iro Boura
- Parkinson Foundation Centre of Excellence, King's College London, London, United Kingdom
| | - Chloe Farrell
- Parkinson Foundation Centre of Excellence, King's College London, London, United Kingdom
| | - Hollie Parfitt
- Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, United Kingdom
| | - Oliver Howes
- Department of Psychosis Studies, King's College London, London, United Kingdom
| | | | | | - Marios Politis
- Neurodegeneration Imaging Group, University of Exeter, Exeter, United Kingdom
| | - David J Nutt
- Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, United Kingdom
| | - Philip J Cowen
- Department of Psychiatry, University of Oxford, Oxford, United Kingdom
| | - Gitte M Knudsen
- Neurobiology Research Unit, University Hospital Rigshospitalet and Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Eugenii A Rabiner
- Invicro, London, United Kingdom; Department of Neuroimaging, King's College London, London, United Kingdom
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14
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The altered multiscale dynamics of spontaneous brain activity in depression with Parkinson’s disease. Neurol Sci 2022; 43:4211-4219. [PMID: 35237895 PMCID: PMC9213374 DOI: 10.1007/s10072-022-05974-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 02/21/2022] [Indexed: 11/01/2022]
Abstract
Abstract
Background
Depression is one typical mood disorder in Parkinson’s disease (DPD). The alterations in the resting-state brain activities are believed to be associated with DPD. These resting-state activities are regulated by neurophysiological components over multiple temporal scales. The multiscale dynamics of these spontaneous fluctuations are thus complex, but not well-characterized.
Objective
To characterize the complexity of the spontaneous blood-oxygen-level-dependent (BOLD) of fMRI in DPD. We hypothesized that (1) compared to non-depression PD (NDPD), the complexity in DPD would be lower; and (2) the diminished complexity would be associated with lower connections/communications between brain regions.
Methods
Twenty-nine participants (10 in DPD and 19 in NDPD) who were naïve to medications completed a resting-sate functional MRI scan. The BOLD complexity within each voxel was calculated by using multiscale entropy (MSE). The complexity of the whole brain and each of the 90 regions parcellated following automated-anatomical-labeling template was then obtained by averaging voxel-wised complexity across all brain regions or within each region. The level of connections of regions with diminished complexity was measured by their own global functional connectivity (FC).
Results
As compared to NDPD patients, the whole-brain complexity and complexity in 18 regions were significantly lower in DPD (F > 16.3, p < 0.0005). Particularly, in eight of the 18 regions, lower complexity was associated with lower global FC (Beta = 0.333 ~ 0.611, p = 0.000 ~ 0.030).
Conclusion
The results from this pilot study suggest that the resting-state BOLD complexity may provide critical knowledge into the pathology of DPD. Future studies are thus warranted to confirm the findings of this study.
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15
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Helman TJ, Headrick JP, Peart JN, Stapelberg NJC. Central and cardiac stress resiliences consistently linked to integrated immuno-neuroendocrine responses across stress models in male mice. Eur J Neurosci 2022; 56:4333-4362. [PMID: 35763309 DOI: 10.1111/ejn.15747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 11/29/2022]
Abstract
Stress resilience, and behavioural and cardiovascular impacts of chronic stress, are theorised to involve integrated neuro-endocrine/inflammatory/transmitter/trophin signalling. We tested for this integration, and whether behaviour/emotionality, together with myocardial ischaemic tolerance, are consistently linked to these pathways across diverse conditions in male C57Bl/6 mice. This included: Restraint Stress (RS), 1 hr restraint/day for 14 days; Chronic Unpredictable Mild Stress (CUMS), 7 stressors randomised over 21 days; Social Stress (SS), 35 days social isolation with brief social encounters in final 13 days; and Control conditions (CTRL; un-stressed mice). Behaviour was assessed via open field (OFT) and sucrose preference (SPT) tests, and neurobiology from frontal cortex (FC) and hippocampal transcripts. Endocrine factors, and function and ischaemic tolerance in isolated hearts, were also measured. Model characteristics ranged from no behavioural or myocardial changes with homotypic RS, to increased emotionality and cardiac ischaemic injury (with apparently distinct endocrine/neurobiological profiles) in CUMS and SS models. Highly integrated expression of HPA axis, neuro-inflammatory, BDNF, monoamine, GABA, cannabinoid and opioid signalling genes was confirmed across conditions, and consistent/potentially causal correlations identified for: i) Locomotor activity (noradrenaline, ghrelin; FC Crhr1, Tnfrsf1b, Il33, Nfkb1, Maoa, Gabra1; hippocampal Il33); ii) Thigmotaxis (adrenaline, leptin); iii) Anxiety-like behaviour (adrenaline, leptin; FC Tnfrsf1a; hippocampal Il33); iv) Depressive-like behaviour (ghrelin; FC/hippocampal s100a8); and v) Cardiac stress-resistance (noradrenaline, leptin; FC Il33, Tnfrsf1b, Htr1a, Gabra1, Gabrg2; hippocampal Il33, Tnfrsf1a, Maoa, Drd2). Data support highly integrated pathway responses to stress, and consistent adipokine, sympatho-adrenergic, inflammatory and monoamine involvement in mood and myocardial disturbances across diverse conditions.
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Affiliation(s)
- Tessa J Helman
- School of Pharmacy and Medical Science, Griffith University, Southport, Australia
| | - John P Headrick
- School of Pharmacy and Medical Science, Griffith University, Southport, Australia
| | - Jason N Peart
- School of Pharmacy and Medical Science, Griffith University, Southport, Australia
| | - Nicolas J C Stapelberg
- Faculty of Health Sciences and Medicine, Bond University, Robina, Australia.,Gold Coast Hospital and Health Service, Southport, Australia
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16
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Dopamine Function and Hypothalamic-Pituitary-Thyroid Axis Activity in Major Depressed Patients with Suicidal Behavior. Brain Sci 2022; 12:brainsci12050621. [PMID: 35625008 PMCID: PMC9139537 DOI: 10.3390/brainsci12050621] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/06/2022] [Accepted: 05/06/2022] [Indexed: 02/04/2023] Open
Abstract
Involvement of the dopaminergic (DA) and hypothalamic-pituitary-thyroid (HPT) systems in suicidal behavior is still poorly understood. We assessed multihormonal responses to apomorphine (APO; a short acting DA receptor agonist) and 8 AM and 11 PM protirelin (TRH) tests in 30 medication-free DSM-5 euthyroid major depressed inpatients with suicidal behavior disorder (SBD) (current, n = 14; in early remission, n = 16) and 18 healthy hospitalized control subjects (HCs). Compared to HCs, responses to APO and TRH tests were unaltered in SBDs in early remission. However, current SBDs exhibited increased APO-induced growth hormone (GH) and adrenocorticotropin (ACTH) stimulation, and reduced 11 PM thyrotropin (TSH) and ∆∆TSH values (difference between 11 PM and 8 AM TRH-TSH responses). In current SBDs, the association between high APO-GH concentrations and low ∆∆TSH values was more common in recent suicide attempters than in past suicide attempters. These preliminary results suggest that co-occurring alterations in the DA and HPT systems (i.e., DA receptor hyperresponsiveness associated with decreased hypothalamic TRH drive) may contribute to the pathophysiology of suicidal behavior. Conversely, normalization of DA and TRH functions might reflect a process of recovery from suicidality. Thus, our findings suggest that drugs targeting the DAergic and TRH systems could be relevant in suicide prevention.
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17
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Chaudhari AJ, Badawi RD. Application-specific nuclear medical in vivoimaging devices. Phys Med Biol 2021; 66. [PMID: 33770765 DOI: 10.1088/1361-6560/abf275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 03/26/2021] [Indexed: 11/11/2022]
Abstract
Nuclear medical imaging devices, such as those enabling photon emission imaging (gamma camera, single photon emission computed tomography, or positron emission imaging), that are typically used in today's clinics are optimized for assessing large portions of the human body, and are classified as whole-body imaging systems. These systems have known limitations for organ imaging, therefore application-specific devices have been designed, constructed and evaluated. These devices, given their compact nature and superior technical characteristics, such as their higher detection sensitivity and spatial resolution for organ imaging compared to whole-body imaging systems, have shown promise for niche applications. Several of these devices have further been integrated with complementary anatomical imaging devices. The objectives of this review article are to (1) provide an overview of such application-specific nuclear imaging devices that were developed over the past two decades (in the twenty-first century), with emphasis on brain, cardiac, breast, and prostate imaging; and (2) discuss the rationale, advantages and challenges associated with the translation of these devices for routine clinical imaging. Finally, a perspective on the future prospects for application-specific devices is provided, which is that sustained effort is required both to overcome design limitations which impact their utility (where these exist) and to collect the data required to define their clinical value.
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Affiliation(s)
- Abhijit J Chaudhari
- Department of Radiology, University of California Davis, Sacramento, CA 95817, United States of America.,Center for Molecular and Genomic Imaging, University of California Davis, Davis, CA 95616, United States of America
| | - Ramsey D Badawi
- Department of Radiology, University of California Davis, Sacramento, CA 95817, United States of America.,Department of Biomedical Engineering, University of California Davis, Davis, CA 95616, United States of America
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18
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Serotonin transporter availability increases in patients recovering from a depressive episode. Transl Psychiatry 2021; 11:264. [PMID: 33972499 PMCID: PMC8110529 DOI: 10.1038/s41398-021-01376-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 03/24/2021] [Accepted: 04/13/2021] [Indexed: 02/03/2023] Open
Abstract
Molecular imaging studies have shown low cerebral concentration of serotonin transporter in patients suffering from depression, compared to healthy control subjects. Whether or not this difference also is present before disease onset and after remission (i.e. a trait), or only at the time of the depressive episode (i.e. a state) remains to be explored. We examined 17 patients with major depressive disorder with positron emission tomography using [11C]MADAM, a radioligand that binds to the serotonin transporter, before and after treatment with internet-based cognitive behavioral therapy. In all, 17 matched healthy control subjects were examined once. Cerebellum was used as reference to calculate the binding potential. Differences before and after treatment, as well as between patients and controls, were assessed in a composite cerebral region and in the median raphe nuclei. All image analyses and confirmatory statistical tests were preregistered. Depression severity decreased following treatment (p < 0.001). [11C]MADAM binding in patients increased in the composite region after treatment (p = 0.01), while no change was observed in the median raphe (p = 0.51). No significant difference between patients at baseline and healthy controls were observed in the composite region (p = 0.97) or the median raphe (p = 0.95). Our main finding was that patients suffering from a depressive episode show an overall increase in cerebral serotonin transporter availability as symptoms are alleviated. Our results suggest that previously reported cross-sectional molecular imaging findings of the serotonin transporter in depression most likely reflect the depressive state, rather than a permanent trait. The finding adds new information on the pathophysiology of major depressive disorder.
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19
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Bombardi C, Grandis A, Pivac N, Sagud M, Lucas G, Chagraoui A, Lemaire-Mayo V, De Deurwaerdère P, Di Giovanni G. Serotonin modulation of hippocampal functions: From anatomy to neurotherapeutics. PROGRESS IN BRAIN RESEARCH 2021; 261:83-158. [PMID: 33785139 DOI: 10.1016/bs.pbr.2021.01.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The hippocampal region receives a dense serotoninergic innervation originating from both medial and dorsal raphe nuclei. This innervation regulates hippocampal activity through the activation of distinct receptor families that are expressed in excitatory and inhibitory neurons, terminals of several afferent neurotransmitter systems, and glial cells. Preclinical and clinical studies indicate that hippocampal dysfunctions are involved in learning and memory deficits, dementia, Alzheimer's disease, epilepsy and mood disorders such as anxiety, depression and post-traumatic syndrome disorder, whereas the hippocampus participates also in the therapeutic mechanisms of numerous medicines. Not surprisingly, several drugs acting via 5-HT mechanisms are efficacious to some extent in some diseases and the link between 5-HT and the hippocampus although clear remains difficult to untangle. For this reason, we review reported data concerning the distribution and the functional roles of the 5-HT receptors in the hippocampal region in health and disease. The impact of the 5-HT systems on the hippocampal function is such that the research of new 5-HT mechanisms and drugs is still very active. It concerns notably drugs acting at the 5-HT1A,2A,2C,4,6 receptor subtypes, in addition to the already existing drugs including the selective serotonin reuptake inhibitors.
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Affiliation(s)
- Cristiano Bombardi
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy.
| | - Annamaria Grandis
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Nela Pivac
- Division of Molecular Medicine, Rudier Boskovic Institute, Zagreb, Croatia
| | - Marina Sagud
- Clinical Hospital Center Zagreb and School of Medicine University of Zagreb, Zagreb, Croatia
| | - Guillaume Lucas
- Neurocentre Magendie, INSERM 1215, Université de Bordeaux, Bordeaux, France
| | - Abdeslam Chagraoui
- Laboratory of Neuronal and Neuroendocrine Differentiation and Communication, Institute for Research and Innovation in Biomedicine of Normandy (IRIB), Normandie University, UNIROUEN, INSERM U1239, Rouen, France; Department of Medical Biochemistry, Rouen University Hospital, Rouen, France
| | - Valérie Lemaire-Mayo
- Centre National de la Recherche Scientifique, Institut des Neurosciences Intégratives et Cognitives d'Aquitaine, UMR 5287, Bordeaux, France
| | - Philippe De Deurwaerdère
- Centre National de la Recherche Scientifique, Institut des Neurosciences Intégratives et Cognitives d'Aquitaine, UMR 5287, Bordeaux, France
| | - Giuseppe Di Giovanni
- Laboratory of Neurophysiology, Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta; Neuroscience Division, School of Biosciences, Cardiff University, Cardiff, United Kingdom
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Sales AJ, Maciel IS, Suavinha ACDR, Joca SRL. Modulation of DNA Methylation and Gene Expression in Rodent Cortical Neuroplasticity Pathways Exerts Rapid Antidepressant-Like Effects. Mol Neurobiol 2021; 58:777-794. [PMID: 33025509 DOI: 10.1007/s12035-020-02145-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Stress increases DNA methylation, primarily a suppressive epigenetic mechanism catalyzed by DNA methyltransferases (DNMT), and decreases the expression of genes involved in neuronal plasticity and mood regulation. Despite chronic antidepressant treatment decreases stress-induced DNA methylation, it is not known whether inhibition of DNMT would convey rapid antidepressant-like effects. AIM This work tested such a hypothesis and evaluated whether a behavioral effect induced by DNMT inhibitors (DNMTi) corresponds with changes in DNA methylation and transcript levels in genes consistently associated with the neurobiology of depression and synaptic plasticity (BDNF, TrkB, 5-HT1A, NMDA, and AMPA). METHODS Male Wistar rats received intraperitoneal (i.p.) injection of two pharmacologically different DNMTi (5-AzaD 0.2 and 0.6 mg/kg or RG108 0.6 mg/kg) or vehicle (1 ml/kg), 1 h or 7 days before the learned helplessness test (LH). DNA methylation in target genes and the correspondent transcript levels were measured in the hippocampus (HPC) and prefrontal cortex (PFC) using meDIP-qPCR. In parallel separate groups, the antidepressant-like effect of 5-AzaD and RG108 was investigated in the forced swimming test (FST). The involvement of cortical BDNF-TrkB-mTOR pathways was assessed by intra-ventral medial PFC (vmPFC) injections of rapamycin (mTOR inhibitor), K252a (TrkB receptor antagonist), or vehicle (0.2 μl/side). RESULTS We found that both 5-AzaD and RG108 acutely and 7 days before the test decreased escape failures in the LH. LH stress increased DNA methylation and decreased transcript levels of BDNF IV and TrkB in the PFC, effects that were not significantly attenuated by RG108 treatment. The systemic administration of 5-AzaD (0.2 mg/kg) and RG108 (0.2 mg/kg) induced an antidepressant-like effect in FST, which was, however, attenuated by TrkB and mTOR inhibition into the vmPFC. CONCLUSION These findings suggest that acute inhibition of stress-induced DNA methylation promotes rapid and sustained antidepressant effects associated with increased BDNF-TrkB-mTOR signaling in the PFC.
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Affiliation(s)
- Amanda J Sales
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
- FMRP-USP, Av Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil.
| | - Izaque S Maciel
- Department of Pharmacology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Angélica C D R Suavinha
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Sâmia R L Joca
- Department of BioMolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.
- FCFRP-USP, Av Café, sn, Monte Alegre, Ribeirão Preto, SP, 14040-903, Brazil.
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21
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Delcourte S, Etievant A, Haddjeri N. Role of central serotonin and noradrenaline interactions in the antidepressants' action: Electrophysiological and neurochemical evidence. PROGRESS IN BRAIN RESEARCH 2021; 259:7-81. [PMID: 33541681 DOI: 10.1016/bs.pbr.2021.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The development of antidepressant drugs, in the last 6 decades, has been associated with theories based on a deficiency of serotonin (5-HT) and/or noradrenaline (NA) systems. Although the pathophysiology of major depression (MD) is not fully understood, numerous investigations have suggested that treatments with various classes of antidepressant drugs may lead to an enhanced 5-HT and/or adapted NA neurotransmissions. In this review, particular morpho-physiological aspects of these systems are first considered. Second, principal features of central 5-HT/NA interactions are examined. In this regard, the effects of the acute and sustained antidepressant administrations on these systems are discussed. Finally, future directions including novel therapeutic strategies are proposed.
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Affiliation(s)
- Sarah Delcourte
- Univ Lyon, Université Claude Bernard Lyon 1, Inserm, Stem Cell and Brain Research Institute U1208, Bron, France
| | - Adeline Etievant
- Integrative and Clinical Neurosciences EA481, University of Bourgogne Franche-Comté, Besançon, France
| | - Nasser Haddjeri
- Univ Lyon, Université Claude Bernard Lyon 1, Inserm, Stem Cell and Brain Research Institute U1208, Bron, France.
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Tiger M, Svensson J, Liberg B, Saijo T, Schain M, Halldin C, Farde L, Lundberg J. [ 11 C]raclopride positron emission tomography study of dopamine-D 2/3 receptor binding in patients with severe major depressive episodes before and after electroconvulsive therapy and compared to control subjects. Psychiatry Clin Neurosci 2020; 74:263-269. [PMID: 31943514 DOI: 10.1111/pcn.12980] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/03/2020] [Accepted: 01/07/2020] [Indexed: 12/24/2022]
Abstract
AIM The aim of the study was to test: (i) if D2 /D3 binding in three functional subsections of striatum is different in patients with severe major depressive episodes than in controls; and (ii) if this difference is normalized after electroconvulsive therapy (ECT). METHODS Nine inpatients were examined with positron emission tomography (PET) and the radioligand [11 C]raclopride before and after an average of 8.4 ECT sessions. Treatment response was assessed using the Montgomery-Åsberg Depression Rating Scale. Nine age- and sex-matched controls were examined twice with PET and [11 C]raclopride. RESULTS [11 C]raclopride binding was significantly lower in all three subsections of striatum in patients compared to controls (Cohen's dz , 1.14-1.68; P = 0.003-0.027). Montgomery-Åsberg Depression Ratings decreased significantly after ECT (P < 0.001; Cohen's dz , 2.9). ECT had no statistically significant effect on [11 C]raclopride binding, although post-ECT binding estimates were more similar to those obtained in controls in all subsections of striatum. CONCLUSION Using PET and [11 C]raclopride, we found support for the notion that severe major depressive episodes are associated with significantly lower dopamine D2 /D3 binding in all three subsections of striatum compared to controls. We noted no significant effect on D2 /D3 binding in the patient group after response to ECT.
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Affiliation(s)
- Mikael Tiger
- Center for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden
| | - Jonas Svensson
- Center for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden
| | - Benny Liberg
- Center for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden
| | - Tomoyuki Saijo
- Center for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden
| | - Martin Schain
- Neurobiology Research Unit, Copenhagen University Hospital, Copenhagen, Denmark
| | - Christer Halldin
- Center for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden
| | - Lars Farde
- Center for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden
| | - Johan Lundberg
- Center for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden
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23
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SPECT and PET of the Brain. Clin Nucl Med 2020. [DOI: 10.1007/978-3-030-39457-8_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Robin A, Sauvaget A, Deschamps T, Bulteau S, Thomas-Ollivier V. Combined Measures of Psychomotor and Cognitive Alterations as a Potential Hallmark for Bipolar Depression. Psychiatry Investig 2019; 16:954-957. [PMID: 31870090 PMCID: PMC6933132 DOI: 10.30773/pi.2019.0116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/03/2019] [Accepted: 11/07/2019] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE The current study aimed to examine whether specific features of psychomotor retardation (PMR) and cognitive functioning established different profiles in unipolar (UD) and bipolar depression (BD). METHODS Two groups of age-matched patients with UD (n=54) and BD (n=20) completed the Montgomery-Asberg Depression Rating Scale (MADRS/60), the Montreal Cognitive Assessment (MoCA/30), and the Salpêtrière Retardation Rating Scale (SRRS/60). We analyzed the group effect and then performed intra-group analyses. RESULTS The BD patients have higher SRRS score, and lower MoCA score than UD despite no difference on the level of depression between UD and BD. Our results show that PMR can be predicted by the level of depression in UD and by the cognitive alteration and onset of disease in BD. CONCLUSION PMR is a relevant marker of depression. Our results highlight the importance of concomitant evaluation of psychomotor and cognitive functions in the distinction of UD and BD symptoms.
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Affiliation(s)
- Alison Robin
- Laboratory “Movement, Interactions, Performance” (E.A. 4334), Faculty of Sport Sciences, University of Nantes, Nantes, France
- Addictology and Liaison Psychiatry Department, University Hospital Nantes, Nantes, France
| | - Anne Sauvaget
- Laboratory “Movement, Interactions, Performance” (E.A. 4334), Faculty of Sport Sciences, University of Nantes, Nantes, France
- Addictology and Liaison Psychiatry Department, University Hospital Nantes, Nantes, France
| | - Thibault Deschamps
- Laboratory “Movement, Interactions, Performance” (E.A. 4334), Faculty of Sport Sciences, University of Nantes, Nantes, France
| | - Samuel Bulteau
- Addictology and Liaison Psychiatry Department, University Hospital Nantes, Nantes, France
| | - Véronique Thomas-Ollivier
- Laboratory “Movement, Interactions, Performance” (E.A. 4334), Faculty of Sport Sciences, University of Nantes, Nantes, France
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Azechi H, Hakamada K, Yamamoto T. A new inbred strain of Fawn-Hooded rats demonstrates mania-like behavioural and monoaminergic abnormalities. IBRO Rep 2019; 7:98-106. [PMID: 31763490 PMCID: PMC6861655 DOI: 10.1016/j.ibror.2019.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 11/02/2019] [Indexed: 01/06/2023] Open
Abstract
The Fawn-Hooded (FH) rat carries a gene mutation that results in a dysfunctional serotoninergic system. However, previous studies have reported differing features between the FH/Wjd and FH/Har strains. We aimed to compare the behavioural and neurobiological features of FH/HamSlc rats with those of Fischer 344 rats. We performed the open field, elevated minus-maze, Y-maze spontaneous alternation, and forced swim tests to investigate behavioural alterations. We also assessed neurobiological characteristics by quantifying monoamines and their related compounds in the prefrontal cortex, hippocampus, and striatum using high-performance liquid chromatography with an electrochemical detection system. FH/HamSlc rats showed hyperactivity and a high impulsivity tendency in the open field and the elevated minus maze test, but no cognitive dysfunction. In addition, the hyperactivity was suppressed immediately after the forced swim test. FH/HamSlc rats showed low dopamine levels, but high dopamine turnover in the striatum. Serotonin and noradrenaline levels were low in the prefrontal cortex and the hippocampus of FH/HamSlc rats, but high serotonin turnover was observed in the prefrontal cortex, hippocampus, and striatum. FH/HamSlc rats show (1) mania-like behavioural characteristics that are different from those of other strains of FH rats; (2) stimulus dependent suppression of hyperactivity similar to the clinical findings that exercise alleviates the symptoms of bipolar disorder; and (3) monoaminergic dysregulation such as monoamine imbalance and hyperturnover that may be associated with mania-related behavioural characteristics. Thus, the FH/HamSlc rat is a new animal model for mania including bipolar disorder.
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Key Words
- 5-HIAA, 5-hydroxyindoleacetic acid
- 5-HT, serotonin
- ADHD, attention-deficit hyperactivity disorder
- Bipolar mania model
- DA, dopamine
- DOPAC, 3,4-dihydroxyphenylacetic acid
- FH, Fawn-Hooded
- Fawn-Hooded rat
- HPLC, high-performance liquid chromatography
- HVA, homovanillic acid
- Hyperactivity
- Impulsivity
- MAO-A, monoamine oxidase A
- MHPG, 3-methoxy-4-hydroxyphenylglycol
- Monoaminergic dysregulation
- NA, noradrenaline
- PCA, perchloric acid
- SEM, standard error of the mean
- Stimulus responsivity
- TPH2, tryptophan hydroxylase 2
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Affiliation(s)
- Hirotsugu Azechi
- Department of Psychology, Tezukayama University, Nara 631-8585, Japan
| | - Kōsuke Hakamada
- Department of Neurophysiology and Cognitive Neuroscience, Graduate School of Psychological Sciences, Tezukayama University, Nara 631-8585, Japan
| | - Takanobu Yamamoto
- Department of Psychology, Tezukayama University, Nara 631-8585, Japan.,Department of Neurophysiology and Cognitive Neuroscience, Graduate School of Psychological Sciences, Tezukayama University, Nara 631-8585, Japan
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26
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Hernández-Hernández OT, Martínez-Mota L, Herrera-Pérez JJ, Jiménez-Rubio G. Role of Estradiol in the Expression of Genes Involved in Serotonin Neurotransmission: Implications for Female Depression. Curr Neuropharmacol 2019; 17:459-471. [PMID: 29956632 PMCID: PMC6520586 DOI: 10.2174/1570159x16666180628165107] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 05/23/2018] [Accepted: 06/25/2018] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND In women, changes in estrogen levels may increase the incidence and/or symptomatology of depression and affect the response to antidepressant treatments. Estrogen therapy in females may provide some mood benefits as a single treatment or might augment clinical response to antidepressants that inhibit serotonin reuptake. OBJECTIVE We analyzed the mechanisms of estradiol action involved in the regulation of gene expression that modulates serotonin neurotransmission implicated in depression. METHOD Publications were identified by a literature search on PubMed. RESULTS The participation of estradiol in depression may include regulation of the expression of tryptophan hydroxylase-2, monoamine oxidase A and B, serotonin transporter and serotonin-1A receptor. This effect is mediated by estradiol binding to intracellular estrogen receptor that interacts with estrogen response elements in the promoter sequences of tryptophan hydroxylase-2, serotonin transporter and monoamine oxidase-B. In addition to directly binding deoxyribonucleic acid, estrogen receptor can tether to other transcription factors, including activator protein 1, specificity protein 1, CCAAT/enhancer binding protein β and nuclear factor kappa B to regulate gene promoters that lack estrogen response elements, such as monoamine oxidase-A and serotonin 1A receptor. CONCLUSION Estradiol increases tryptophan hydroxylase-2 and serotonin transporter expression and decreases the expression of serotonin 1A receptor and monoamine oxidase A and B through the interaction with its intracellular receptors. The understanding of molecular mechanisms of estradiol regulation on the protein expression that modulates serotonin neurotransmission will be helpful for the development of new and more effective treatment for women with depression.
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Affiliation(s)
- Olivia Tania Hernández-Hernández
- Consejo Nacional de Ciencia y Tecnologia Research Fellow Instituto Nacional de Psiquiatria Ramon de la Fuente Muniz, Calzada Mexico-Xochimilco 101, Col. San Lorenzo Huipulco, Delegacion Tlalpan, 14370, Ciudad de Mexico, Mexico
| | - Lucía Martínez-Mota
- Laboratorio de Farmacologia Conductual, Direccion de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatria Ramon de la Fuente Muniz, Calzada Mexico-Xochimilco 101, Col. San Lorenzo Huipulco, Delegacion Tlalpan, 14370, Ciudad de Mexico, Mexico
| | - José Jaime Herrera-Pérez
- Laboratorio de Farmacologia Conductual, Direccion de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatria Ramon de la Fuente Muniz, Calzada Mexico-Xochimilco 101, Col. San Lorenzo Huipulco, Delegacion Tlalpan, 14370, Ciudad de Mexico, Mexico
| | - Graciela Jiménez-Rubio
- Laboratorio de Farmacologia Conductual, Direccion de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatria Ramon de la Fuente Muniz, Calzada Mexico-Xochimilco 101, Col. San Lorenzo Huipulco, Delegacion Tlalpan, 14370, Ciudad de Mexico, Mexico
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27
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Insula serotonin 2A receptor binding and gene expression contribute to serotonin transporter polymorphism anxious phenotype in primates. Proc Natl Acad Sci U S A 2019; 116:14761-14768. [PMID: 31266890 PMCID: PMC6642374 DOI: 10.1073/pnas.1902087116] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Genetic variation in the serotonin transporter gene (SLC6A4) is associated with vulnerability to affective disorders and pharmacotherapy efficacy. We recently identified sequence polymorphisms in the common marmoset SLC6A4 repeat region (AC/C/G and CT/T/C) associated with individual differences in anxiety-like trait, gene expression, and response to antidepressants. The mechanisms underlying the effects of these polymorphisms are unknown, but a key mediator of serotonin action is the serotonin 2A receptor (5HT2A). Thus, we correlated 5HT2A binding potential (BP) and RNA gene expression in 16 SLC6A4 genotyped marmosets with responsivity to 5HT2A antagonism during the human intruder test of anxiety. Voxel-based analysis and RNA measurements showed a reduction in 5HT2A BP and gene expression specifically in the right posterior insula of individuals homozygous for the anxiety-related variant AC/C/G. These same marmosets displayed an anxiogenic, dose-dependent response to the human intruder after 5HT2A pharmacological antagonism, while CT/T/C individuals showed no effect. A voxel-based correlation analysis, independent of SLC6A4 genotype, revealed that 5HT2A BP in the adjacent right anterior insula and insula proisocortex was negatively correlated with trait anxiety scores. Moreover, 5HT2A BP in both regions was a good predictor of the size and direction of the acute emotional response to the human intruder threat after 5HT2A antagonism. Our findings suggest that genetic variation in the SLC6A4 repeat region may contribute to the trait anxious phenotype via neurochemical changes in brain areas implicated in interoceptive and emotional processing, with a critical role for the right insula 5HT2A in the regulation of affective responses to threat.
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28
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Landau AM, Alstrup AKO, Noer O, Winterdahl M, Audrain H, Møller A, Videbech P, Wegener G, Gjedde A, Doudet DJ. Electroconvulsive stimulation differentially affects [ 11C]MDL100,907 binding to cortical and subcortical 5HT 2A receptors in porcine brain. J Psychopharmacol 2019; 33:714-721. [PMID: 30887871 DOI: 10.1177/0269881119836212] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Electroconvulsive therapy is an effective therapy of depression. We hypothesized that the beneficial effects are mediated partly by decreased serotonin receptor availability in the cortex. AIMS We used positron emission tomography with the serotonin 5HT2A receptor radioligand [11C]MDL100,907 to determine serotonin receptor availability in response to electroconvulsive stimulation (ECS). METHODS Seven Göttingen minipigs were deeply anaesthetized and imaged at baseline before the onset of ECS, and at 1-2 and 8-10 days after the end of a clinical course of ECS, consisting of 10 sessions over 3.5 weeks, and post-ECS values were compared to baseline. One additional minipig was anaesthetized over 10 sessions without ECS, as a control. We analysed images with the Ichise model for binding in cortex and hippocampus, followed by whole-brain analysis by statistical non-parametric mapping. RESULTS We found significantly increased binding potential of [11C]MDL100,907 in the cortex and hippocampus 1-2 days after ECS, consistent with increased serotonin receptor availability compared to baseline. By 8-10 days after the final ECS, the average tracer binding had returned towards baseline. However, we also found significantly decreased tracer binding in the subcortical regions of olfactory bulb, pons, thalamus and striatum. CONCLUSIONS With ECS, minipigs, unlike primates but like rodents, have higher availability at cortical and hippocampal 5HT2A receptors. Decreased tracer binding is consistent with reduced serotonin receptor availability as a differential effect of ECS on 5HT2A receptors in subcortical regions of minipig brain.
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Affiliation(s)
- Anne M Landau
- 1 Translational Neuropsychiatry Unit, Aarhus University, Aarhus, Denmark.,2 Department of Nuclear Medicine and PET Centre, Aarhus University and Hospital, Aarhus, Denmark
| | | | - Ove Noer
- 2 Department of Nuclear Medicine and PET Centre, Aarhus University and Hospital, Aarhus, Denmark
| | - Michael Winterdahl
- 2 Department of Nuclear Medicine and PET Centre, Aarhus University and Hospital, Aarhus, Denmark
| | - Hélène Audrain
- 2 Department of Nuclear Medicine and PET Centre, Aarhus University and Hospital, Aarhus, Denmark
| | - Arne Møller
- 2 Department of Nuclear Medicine and PET Centre, Aarhus University and Hospital, Aarhus, Denmark.,3 Center of Functionally Integrative Neuroscience, Aarhus University, Aarhus, Denmark
| | - Poul Videbech
- 4 Centre of Mental Health, Glostrup & University of Copenhagen, Copenhagen, Denmark
| | - Gregers Wegener
- 1 Translational Neuropsychiatry Unit, Aarhus University, Aarhus, Denmark
| | - Albert Gjedde
- 2 Department of Nuclear Medicine and PET Centre, Aarhus University and Hospital, Aarhus, Denmark.,5 Department of Nuclear Medicine, University of Southern Denmark & Odense University Hospital, Odense, Denmark.,6 Department of Neurology and Neurosurgery, McGill University, Montreal, QC, Canada
| | - Doris J Doudet
- 7 Department of Medicine/Neurology, University of British Columbia, Vancouver, BC, Canada
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29
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Lebedeva NN, Maltsev VY, Pochigaeva KI, Guekht AB. [Neurophysiological peculiarities of cognitive activity in patients anxiety-depressive and hypochondriacal disorders]. Zh Nevrol Psikhiatr Im S S Korsakova 2019; 119:43-49. [PMID: 31089094 DOI: 10.17116/jnevro201911903143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
AIM To study neurophysiological features of the cognitive activity in patients with anxiety-depressive and hypochondriacal disorders. MATERIAL AND METHODS The study included 65 people: 16 with hypochondriacal disorder, 23 with mixed anxiety and depressive disorder, and 26 control subjects. Heart rate variability method and electroencephalography were used. RESULTS AND CONCLUSION There was a decrease in the beta-1 frequency range in EEG after performing cognitive test in patients with mixed anxiety and depressive disorder. Patients with hypochondriacal disorder had the reduced duration of RR intervals; increased beta-1 frequency range in the resting state; the increase in the dominant beta-2 frequency during the cognitive test, and in the standard deviation of theta-wave frequencies after the cognitive test.
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Affiliation(s)
- N N Lebedeva
- Institute of Higher Nervous Activity and Neurophysiology of RAS, Moscow, Russia; Moscow Research and Clinical Centre for Neuropsychiatry, Moscow, Russia
| | - V Yu Maltsev
- Institute of Higher Nervous Activity and Neurophysiology of RAS, Moscow, Russia; Moscow Research and Clinical Centre for Neuropsychiatry, Moscow, Russia; Russian State University for the Humanities, Moscow, Russia
| | - K I Pochigaeva
- Moscow Research and Clinical Centre for Neuropsychiatry, Moscow, Russia
| | - A B Guekht
- Moscow Research and Clinical Centre for Neuropsychiatry, Moscow, Russia
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30
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Regional default mode network connectivity in major depressive disorder: modulation by acute intravenous citalopram. Transl Psychiatry 2019; 9:116. [PMID: 30877271 PMCID: PMC6420575 DOI: 10.1038/s41398-019-0447-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/26/2019] [Accepted: 02/13/2019] [Indexed: 11/08/2022] Open
Abstract
The relationship between altered default mode network (DMN) connectivity and abnormal serotonin function in major depressive disorder (MDD) has not been investigated. Using intravenous citalopram and resting-state fMRI, we investigated DMN intra-network connectivity and serotonin function in 77 healthy controls and patients with MDD. There were no significant main effects of MDD or citalopram on DMN intra-network connectivity; however, significant interactions indicated that group differences under saline were modified by citalopram. In MDD patients during saline infusion, in contrast with controls, the DMN (i) did not include the precuneus that was instead part of an anti-correlated network but (ii) did include amygdala that was part of the anti-correlated network in controls. Citalopram infusion in MDD patients restored the pattern seen in controls under saline. In healthy controls, citalopram infusion disengaged the precuneus from the DMN and engaged the amygdala, partially reproducing the abnormalities seen under saline in MDD. In exploratory analyses within the MDD group, greater rumination self-ratings were associated with greater intra-network connectivity of the anterior cingulate cortex with the DMN. We hypothesise that, in MDD, disengagement of the precuneus from the DMN relates to overgeneral memory bias in rumination. The opposite effect, with greater engagement of the amygdala in the DMN, reflects the negative valence of rumination. Reversal of these abnormalities by citalopram suggests that they may be related to impaired serotonin function. That citalopram engaged the amygdala in the DMN in controls may relate to the paradoxical effects on aversive processing seen with acute SSRIs in healthy subjects.
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31
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Villas Boas GR, Boerngen de Lacerda R, Paes MM, Gubert P, Almeida WLDC, Rescia VC, de Carvalho PMG, de Carvalho AAV, Oesterreich SA. Molecular aspects of depression: A review from neurobiology to treatment. Eur J Pharmacol 2019; 851:99-121. [PMID: 30776369 DOI: 10.1016/j.ejphar.2019.02.024] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 02/14/2019] [Accepted: 02/14/2019] [Indexed: 12/14/2022]
Abstract
Major depressive disorder (MDD), also known as unipolar depression, is one of the leading causes of disability and disease worldwide. The signs and symptoms are low self‑esteem, anhedonia, feeling of worthlessness, sense of rejection and guilt, suicidal thoughts, among others. This review focuses on studies with molecular-based approaches involving MDD to obtain an integrated, more detailed and comprehensive view of the brain changes produced by this disorder and its treatment and how the Central Nervous System (CNS) produces neuroplasticity to orchestrate adaptive defensive behaviors. This article integrates affective neuroscience, psychopharmacology, neuroanatomy and molecular biology data. In addition, there are two problems with current MDD treatments, namely: 1) Low rates of responsiveness to antidepressants and too slow onset of therapeutic effect; 2) Increased stress vulnerability and autonomy, which reduces the responses of currently available treatments. In the present review, we encourage the prospection of new bioactive agents for the development of treatments with post-transduction mechanisms, neurogenesis and pharmacogenetics inducers that bring greater benefits, with reduced risks and maximized access to patients, stimulating the field of research on mood disorders in order to use the potential of preclinical studies. For this purpose, improved animal models that incorporate the molecular and anatomical tools currently available can be applied. Besides, we encourage the study of drugs that do not present "classical application" as antidepressants, (e.g., the dissociative anesthetic ketamine and dextromethorphan) and drugs that have dual action mechanisms since they represent potential targets for novel drug development more useful for the treatment of MDD.
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Affiliation(s)
- Gustavo Roberto Villas Boas
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil; Faculty of Health Sciences, Federal University of Grande Dourados, Dourados Rodovia Dourados, Itahum Km 12, Cidade Universitaria, Caixa. postal 364, CEP 79804-970, Dourados, Mato Grosso do Sul, Brazil.
| | - Roseli Boerngen de Lacerda
- Department of Pharmacology of the Biological Sciences Center, Federal University of Paraná, Jardim das Américas, Caixa. postal 19031, CEP 81531-990, Curitiba, Paraná, Brazil.
| | - Marina Meirelles Paes
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Priscila Gubert
- Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Wagner Luis da Cruz Almeida
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Vanessa Cristina Rescia
- Research Group on Development of Pharmaceutical Products (P&DProFar), Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Pablinny Moreira Galdino de Carvalho
- Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Adryano Augustto Valladao de Carvalho
- Center for Biological and Health Sciences, Federal University of Western Bahia, Rua Bertioga, 892, Morada Nobre II, CEP 47810-059, Barreiras, Bahia, Brazil.
| | - Silvia Aparecida Oesterreich
- Faculty of Health Sciences, Federal University of Grande Dourados, Dourados Rodovia Dourados, Itahum Km 12, Cidade Universitaria, Caixa. postal 364, CEP 79804-970, Dourados, Mato Grosso do Sul, Brazil.
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Dopaminergic Mechanisms Underlying Normal Variation in Trait Anxiety. J Neurosci 2019; 39:2735-2744. [PMID: 30737306 DOI: 10.1523/jneurosci.2382-18.2019] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 01/03/2019] [Accepted: 01/29/2019] [Indexed: 02/07/2023] Open
Abstract
Trait anxiety has been associated with altered activity within corticolimbic pathways connecting the amygdala and rostral anterior cingulate cortex (rACC), which receive rich dopaminergic input. Though the popular culture uses the term "chemical imbalance" to describe the pathophysiology of psychiatric conditions such as anxiety disorders, we know little about how individual differences in human dopamine neurochemistry are related to variation in anxiety and activity within corticolimbic circuits. We addressed this issue by examining interindividual variability in dopamine release at rest using [11C]raclopride positron emission tomography (PET), functional connectivity between amygdala and rACC using resting-state functional magnetic resonance imaging (fMRI), and trait anxiety measures in healthy adult male and female humans. To measure endogenous dopamine release, we collected two [11C]raclopride PET scans per participant. We contrasted baseline [11C]raclopride D2/3 receptor binding and D2/3 receptor binding following oral methylphenidate administration. Methylphenidate blocks the dopamine transporter, which increases extracellular dopamine and leads to reduced [11C]raclopride D2/3 receptor binding via competitive displacement. We found that individuals with higher dopamine release in the amygdala and rACC self-reported lower trait anxiety. Lower trait anxiety was also associated with reduced rACC-amygdala functional connectivity at baseline. Further, functional connectivity showed a modest negative relationship with dopamine release such that reduced rACC-amygdala functional connectivity was accompanied by higher levels of dopamine release in these regions. Together, these findings contribute to hypodopaminergic models of anxiety and support the utility of combining fMRI and PET measures of neurochemical function to advance our understanding of basic affective processes in humans.SIGNIFICANCE STATEMENT It is common wisdom that individuals vary in their baseline levels of anxiety. We all have a friend or colleague we know to be more "tightly wound" than others, or, perhaps, we are the ones marveling at others' ability to "just go with the flow." Although such observations about individual differences within nonclinical populations are commonplace, the neural mechanisms underlying normal variation in trait anxiety have not been established. Using multimodal brain imaging in humans, this study takes initial steps in linking intrinsic measures of neuromodulator release and functional connectivity within regions implicated in anxiety disorders. Our findings suggest that in healthy adults, higher levels of trait anxiety may arise, at least in part, from reduced dopamine neurotransmission.
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Arakawa R, Stenkrona P, Takano A, Svensson J, Andersson M, Nag S, Asami Y, Hirano Y, Halldin C, Lundberg J. Venlafaxine ER Blocks the Norepinephrine Transporter in the Brain of Patients with Major Depressive Disorder: a PET Study Using [18F]FMeNER-D2. Int J Neuropsychopharmacol 2019; 22:278-285. [PMID: 30649319 PMCID: PMC6441126 DOI: 10.1093/ijnp/pyz003] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/21/2018] [Accepted: 01/09/2019] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The in vivo binding of clinical dose of venlafaxine on norepinephrine transporter has been questioned because venlafaxine has higher in vitro affinity to serotonin transporter than that to norepinephrine transporter. Although serotonin transporter occupancy of clinically relevant doses of venlafaxine has been reported, there has been no report of norepinephrine transporter occupancy in the human brain. METHODS This was an open-label, single center, exploratory positron emission tomography study. Twelve major depressive disorder patients who had responded to venlafaxine extended-release and 9 control subjects were recruited. Each subject participated in one positron emission tomography measurement with [18F]FMeNER-D2. Binding potential in brain was quantified by the area under the curve ratio method with thalamus as target and white matter as reference regions. The difference of binding potential values between control and patient groups divided to 2 dose ranges were evaluated. Norepinephrine transporter occupancy (%) for all the major depressive disorder patients was calculated using mean binding potential of control subjects as baseline. The relationships between dose or plasma concentration of total active moiety and occupancies of norepinephrine transporter were also estimated. RESULTS The binding potential of the patient group with 150 to 300 mg/d was significantly lower than that in the control subjects group (P = .0004 < .05/2). The norepinephrine transporter occupancy (8-61%) increased in a dose-dependent manner although a clear difference beyond 150 mg/d was not observed. CONCLUSIONS This study demonstrates that clinically relevant doses of venlafaxine extended-release block the norepinephrine transporter of the major depressive disorder patient's brain. The data support the notion that the antidepressant effect of venlafaxine involves a combination of serotonin transporter and norepinephrine transporter blockades.
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Affiliation(s)
- Ryosuke Arakawa
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden,Correspondence: Ryosuke Arakawa, MD, PhD, Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden. Post address: Karolinska University Hospital Solna, R5:02, SE-17176 Stockholm, Sweden ()
| | - Per Stenkrona
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden
| | - Akihiro Takano
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden
| | - Jonas Svensson
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden
| | - Max Andersson
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden
| | - Sangram Nag
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden
| | - Yuko Asami
- Central Nervous System, Medical Affairs, Pfizer Essential Health, Pfizer Japan Inc., Tokyo, Japan
| | - Yoko Hirano
- Central Nervous System, Medical Affairs, Pfizer Essential Health, Pfizer Japan Inc., Tokyo, Japan
| | - Christer Halldin
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden
| | - Johan Lundberg
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden
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Mann JJ, Metts AV, Ogden RT, Mathis CA, Rubin-Falcone H, Gong Z, Drevets WC, Zelazny J, Brent DA. Quantification of 5-HT 1A and 5-HT 2A receptor Binding in Depressed Suicide Attempters and Non-Attempters. Arch Suicide Res 2019; 23:122-133. [PMID: 29281590 DOI: 10.1080/13811118.2017.1417185] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To determine serotonin system abnormalities related to major depression or previous suicidal behavior. METHODS [11C]WAY100635, [18F]altanserin and positron emission tomography were used to compare 5-HT1A and 5-HT2A binding in MDD patients divided into eight past suicide attempters (>4yrs prior to scanning) and eight lifetime non-attempters, and both groups were compared to eight healthy volunteers. RESULTS The two receptor types differed in binding pattern across brain regions from each other, but there were no differences in binding between healthy volunteers and the two depressed groups or between depressed suicide attempters and non-attempters. No effects of depression severity or lifetime aggression were observed for either receptor. CONCLUSION Limitations of this study include small sample size and absence of high lethality suicide attempts in the depressed attempter group. No trait-like binding correlations with past suicide attempt or current depression were observed. Given the heterogeneity of nonfatal suicidal behavior, a larger sample study emphasizing higher lethality suicide attempts may find the serotonin biological phenotype seen in suicide decedents.
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Underwood MD, Kassir SA, Bakalian MJ, Galfalvy H, Dwork AJ, Mann JJ, Arango V. Serotonin receptors and suicide, major depression, alcohol use disorder and reported early life adversity. Transl Psychiatry 2018; 8:279. [PMID: 30552318 PMCID: PMC6294796 DOI: 10.1038/s41398-018-0309-1] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 08/05/2018] [Indexed: 01/19/2023] Open
Abstract
Serotonin neurotransmitter deficits are reported in suicide, major depressive disorder (MDD) and alcohol use disorder (AUD). To compare pathophysiology in these disorders, we mapped brain serotonin transporter (SERT), 5-HT1A, and 5-HT2A receptor binding throughout prefrontal cortex and in anterior cingulate cortex postmortem. Cases and controls died suddenly minimizing agonal effects and had a postmortem interval ≤24 h to avoid compromised brain integrity. Neuropathology and toxicology confirmed absence of neuropathology and psychotropic medications. For most subjects (167 of 232), a DSM-IV Axis I diagnosis was made by psychological autopsy. Autoradiography was performed in right hemisphere coronal sections at a pre-genual level. Linear model analyses included sex and age with group and Brodmann area as interaction terms. SERT binding was lower in suicides (p = 0.004) independent of sex (females < males, p < 0.0001), however, the lower SERT binding was dependent on MDD diagnosis (p = 0.014). Higher SERT binding was associated with diagnosis of alcoholism (p = 0.012). 5-HT1A binding was greater in suicides (p < 0.001), independent of MDD (p = 0.168). Alcoholism was associated with higher 5-HT1A binding (p < 0.001) but only in suicides (p < 0.001). 5-HT2A binding was greater in suicides (p < 0.001) only when including MDD (p = 0.117) and alcoholism (p = 0.148) in the model. Reported childhood adversity was associated with higher SERT and 5-HT1A binding (p = 0.004) in nonsuicides and higher 5-HT2A binding (p < 0.001). Low SERT and more 5-HT1A and 5-HT2A binding in the neocortex in depressed suicides is dependent on Axis I diagnosis and reported childhood adversity. Findings in alcoholism differed from those in depression and suicide indicating a distinct serotonin system pathophysiology.
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Affiliation(s)
- Mark D Underwood
- Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA.
- Division of Molecular Imaging and Neuropathology, Columbia University and New York State Psychiatric Institute, New York, NY, USA.
| | - Suham A Kassir
- Division of Molecular Imaging and Neuropathology, Columbia University and New York State Psychiatric Institute, New York, NY, USA
| | - Mihran J Bakalian
- Division of Molecular Imaging and Neuropathology, Columbia University and New York State Psychiatric Institute, New York, NY, USA
| | - Hanga Galfalvy
- Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA
- Division of Molecular Imaging and Neuropathology, Columbia University and New York State Psychiatric Institute, New York, NY, USA
- Division of Biostatistics, Columbia University and New York State Psychiatric Institute, New York, NY, USA
| | - Andrew J Dwork
- Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA
- Division of Molecular Imaging and Neuropathology, Columbia University and New York State Psychiatric Institute, New York, NY, USA
- Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons, New York, NY, USA
- Macedonian Academy of Sciences and Arts, Skopje, Macedonia
| | - J John Mann
- Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA
- Division of Molecular Imaging and Neuropathology, Columbia University and New York State Psychiatric Institute, New York, NY, USA
| | - Victoria Arango
- Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY, USA
- Division of Molecular Imaging and Neuropathology, Columbia University and New York State Psychiatric Institute, New York, NY, USA
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Babb JA, Linnros SE, Commons KG. Evidence for intact 5-HT 1A receptor-mediated feedback inhibition following sustained antidepressant treatment in a rat model of depression. Neuropharmacology 2018; 141:139-147. [PMID: 30170082 DOI: 10.1016/j.neuropharm.2018.08.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 08/06/2018] [Accepted: 08/25/2018] [Indexed: 01/12/2023]
Abstract
Serotonin (5-HT) neurons are strongly implicated in mood disorders such as depression and are importantly regulated by feedback inhibition mediated by 5-HT1A receptors. These receptors may play a role, albeit a poorly understood one, in the generation of mood disorders, treatment response to antidepressants and delayed therapeutic efficacy. Here we sought to gain insight into the role of 5-HT1A receptor-mediated feedback inhibition in these processes by studying Fos protein expression within serotonin neurons in a rat model of stress-related mood disorder, early life maternal separation (MS), combined with two-week treatment with the antidepressant fluoxetine (FLX) in adulthood. We gauged 5-HT1A receptor-mediated feedback inhibition by the ability of the antagonist, WAY-100635 (WAY), to disinhibit Fos expression in 5-HT neurons. We found that two-week FLX treatment dramatically inhibited Fos expression in serotonin neurons and that this effect was reversed by blocking 5-HT1A receptors with WAY. Together these observations reveal that after prolonged exposure to SSRIs, endogenous 5-HT1A receptors continue to exert feedback inhibition of serotonin neurons. Furthermore we found unique effects of pharmacological treatments after MS in that the WAY effect was greatest in MS rats treated with FLX, a phenomenon selective to the rostral 2/3 of the dorsal raphe nucleus (B7). These results indicate that the balance between activation and feedback inhibition of serotonin neurons in B7 is altered and uniquely sensitive to FLX after early-life stress.
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Affiliation(s)
- Jessica A Babb
- Department of Anesthesiology, Perioperative, and Pain Medicine, Boston Children's Hospital, 300 Longwood Ave., Boston, MA 02115, USA; Department of Anesthesia, Harvard Medical School, 25 Shattuck St, Boston, MA 02115, USA.
| | - Sofia E Linnros
- Department of Anesthesiology, Perioperative, and Pain Medicine, Boston Children's Hospital, 300 Longwood Ave., Boston, MA 02115, USA; Department of Pharmaceutical Biosciences, Uppsala University, 751 05 Uppsala, Sweden.
| | - Kathryn G Commons
- Department of Anesthesiology, Perioperative, and Pain Medicine, Boston Children's Hospital, 300 Longwood Ave., Boston, MA 02115, USA; Department of Anesthesia, Harvard Medical School, 25 Shattuck St, Boston, MA 02115, USA.
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van Galen KA, Ter Horst KW, Booij J, la Fleur SE, Serlie MJ. The role of central dopamine and serotonin in human obesity: lessons learned from molecular neuroimaging studies. Metabolism 2018; 85:325-339. [PMID: 28970033 DOI: 10.1016/j.metabol.2017.09.007] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 09/14/2017] [Accepted: 09/18/2017] [Indexed: 12/11/2022]
Abstract
Obesity results from an imbalance between energy intake and expenditure, and many studies have aimed to determine why obese individuals continue to (over)consume food under conditions of caloric excess. The two major "neurotransmitter hypotheses" of obesity state that increased food intake is partially driven by decreased dopamine-mediated reward and decreased serotonin-mediated homeostatic feedback in response to food intake. Using molecular neuroimaging studies to visualize and quantify aspects of the central dopamine and serotonin systems in vivo, recent PET and SPECT studies have also implicated alterations in these systems in human obesity. The interpretation of these data, however, is more complex than it may appear. Here, we discuss important characteristics and limitations of current radiotracer methods and use this framework to comprehensively review the available human data on central dopamine and serotonin in obesity. On the basis of the available evidence, we conclude that obesity is associated with decreased central dopaminergic and serotonergic signaling and that future research, especially in long-term follow-up and interventional settings, is needed to advance our understanding of the neuronal pathophysiology of obesity in humans.
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Affiliation(s)
- Katy A van Galen
- Department of Endocrinology and Metabolism, Academic Medical Center, Amsterdam, Netherlands
| | - Kasper W Ter Horst
- Department of Endocrinology and Metabolism, Academic Medical Center, Amsterdam, Netherlands
| | - Jan Booij
- Department of Nuclear Medicine, Academic Medical Center, Amsterdam, Netherlands
| | - Susanne E la Fleur
- Department of Endocrinology and Metabolism, Academic Medical Center, Amsterdam, Netherlands; Laboratory of Endocrinology, Department of Clinical Chemistry, Academic Medical Center, Amsterdam, Netherlands; Metabolism and Reward Group, Netherlands Institute for Neuroscience, Amsterdam, Netherlands
| | - Mireille J Serlie
- Department of Endocrinology and Metabolism, Academic Medical Center, Amsterdam, Netherlands.
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Abstract
The dopamine (DA) system is considered to be centrally involved in the pathophysiology of several major psychiatric disorders. Using positron emission tomography (PET), aberrations in dopamine D2/D3-receptors (D2-R) levels and uptake of the DA precursor FDOPA have been shown for schizophrenia, substance abuse and depression. Radioligands for the dopamine D1-receptor (D1-R) have been available for more than three decades, however this receptor subtype has received much less attention in psychiatry research. Here, studies investigating D1-R in psychiatric patients in comparison to healthy control subjects are summarized. Although small sample sizes, medication effects and heterogeneous methods of quantification limit the conclusions that can be drawn, the data is suggestive of higher levels of cortical D1-R in drug naïve patients with psychosis, and lower D1-R in patients with affective disorders. Data sharing and reanalysis using harmonized methodology are important next steps towards clarifying the role of D1-R in these disorders.
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Affiliation(s)
- Simon Cervenka
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden.
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Altered populations of natural killer cells, cytotoxic T lymphocytes, and regulatory T cells in major depressive disorder: Association with sleep disturbance. Brain Behav Immun 2017; 66. [PMID: 28645775 PMCID: PMC5650936 DOI: 10.1016/j.bbi.2017.06.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
A subset of individuals with major depressive disorder (MDD) have impaired adaptive immunity characterized by a greater vulnerability to viral infection and a deficient response to vaccination along with a decrease in the number and/or activity of T cells and natural killer cells (NKC). Nevertheless, it remains unclear which specific subsets of lymphocytes are altered in MDD, a shortcoming we address here by utilizing an advanced fluorescence-activated cell sorting (FACS) method that allows for the differentiation of important functionally-distinct lymphocyte sub-populations. Furthermore, despite evidence that sleep disturbance, which is a core symptom of MDD, is itself associated with alterations in lymphocyte distributions, there is a paucity of studies examining the contribution of sleep disturbance on lymphocyte populations in MDD populations. Here, we measured differences in the percentages of 13 different lymphocytes and 6 different leukocytes in 54 unmedicated MDD patients (partially remitted to moderate) and 56 age and sex-matched healthy controls (HC). The relationship between self-reported sleep disturbance and cell counts was evaluated in the MDD group using the Pittsburgh Sleep Quality Index (PSQI). The MDD group showed a significantly increased percentage of CD127low/CCR4+ Treg cells, and memory Treg cells, as well as a reduction in CD56+CD16- (putative immunoregulatory) NKC counts, the latter, prior to correction for body mass index. There also was a trend for higher effector memory CD8+ cell counts in the MDD group versus the HC group. Further, within the MDD group, self-reported sleep disturbance was associated with an increased percentage of effector memory CD8+ cells but with a lower percentage of CD56+CD16- NKC. These results provide important new insights into the immune pathways involved in MDD, and provide novel evidence that MDD and associated sleep disturbance increase effector memory CD8+ and Treg pathways. Targeting sleep disturbance may have implications as a therapeutic strategy to normalize NKC and memory CD8+ cells in MDD.
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Tangen Ä, Borg J, Tiger M, Varnäs K, Sorjonen K, Lindefors N, Halldin C, Lundberg J. Associations between cognition and serotonin receptor 1B binding in patients with major depressive disorder - A pilot study. Psychiatry Res Neuroimaging 2017; 267:15-21. [PMID: 28688337 DOI: 10.1016/j.pscychresns.2017.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 05/28/2017] [Accepted: 06/01/2017] [Indexed: 11/22/2022]
Affiliation(s)
- Ämma Tangen
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden.
| | - Jacqueline Borg
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
| | - Mikael Tiger
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
| | - Katarina Varnäs
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
| | - Kimmo Sorjonen
- Department of Clinical Neuroscience, Divison of Psychology, Karolinska Institutet, Stockholm, Sweden
| | - Nils Lindefors
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
| | - Christer Halldin
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
| | - Johan Lundberg
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE-171 76 Stockholm, Sweden
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Tuominen L, Miettunen J, Cannon DM, Drevets WC, Frokjaer VG, Hirvonen J, Ichise M, Jensen PS, Keltikangas-Järvinen L, Klaver JM, Knudsen GM, Takano A, Suhara T, Hietala J. Neuroticism Associates with Cerebral in Vivo Serotonin Transporter Binding Differently in Males and Females. Int J Neuropsychopharmacol 2017; 20:963-970. [PMID: 29020405 PMCID: PMC5716061 DOI: 10.1093/ijnp/pyx071] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 08/03/2017] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Neuroticism is a major risk factor for affective disorders. This personality trait has been hypothesized to associate with synaptic availability of the serotonin transporter, which critically controls serotonergic tone in the brain. However, earlier studies linking neuroticism and serotonin transporter have failed to produce converging findings. Because sex affects both the serotonergic system and the risk that neuroticism poses to the individual, sex may modify the association between neuroticism and serotonin transporter, but this question has not been investigated by previous studies. METHODS Here, we combined data from 4 different positron emission tomography imaging centers to address whether neuroticism is related to serotonin transporter binding in vivo. The data set included serotonin transporter binding potential values from the thalamus and striatum and personality scores from 91 healthy males and 56 healthy females. We specifically tested if the association between neuroticism and serotonin transporter is different in females and males. RESULTS We found that neuroticism and thalamic serotonin transporter binding potentials were associated in both males and females, but with opposite directionality. Higher neuroticism associated with higher serotonin transporter binding potential in males (standardized beta 0.292, P=.008), whereas in females, higher neuroticism associated with lower serotonin transporter binding potential (standardized beta -0.288, P=.014). CONCLUSIONS The finding is in agreement with recent studies showing that the serotonergic system is involved in affective disorders differently in males and females and suggests that contribution of thalamic serotonin transporter to the risk of affective disorders depends on sex.
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Affiliation(s)
- Lauri Tuominen
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala),Correspondence: Lauri Tuominen, MD, PhD, MGH/HST Athinoula A. Martinos Center for Biomedical Imaging, 149 13th St, Charlestown, MA 02129 ()
| | - Jouko Miettunen
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Dara M Cannon
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Wayne C Drevets
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Vibe G Frokjaer
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Jussi Hirvonen
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Masanori Ichise
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Peter S Jensen
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Liisa Keltikangas-Järvinen
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Jacqueline M Klaver
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Gitte M Knudsen
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Akihiro Takano
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Tetsuya Suhara
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
| | - Jarmo Hietala
- Turku PET Centre, Turku University Hospital, Turku, Finland (Drs Tuominen, Hirvonen, and Hietala); Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Cambridge, MA (Dr Tuominen); Center for Life Course Health Research, University of Oulu, Finland & Medical Research Center (MRC) Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland (Dr Miettunen); Centre for Neuroimaging & Cognitive Genomics (NICOG), Clinical Neuroimaging Laboratory, NCBES Galway Neuroscience Centre, College of Medicine Nursing and Health Sciences, National University of Ireland, Galway, Ireland (Dr Cannon); Janssen Research & Development, LLC, of Johnson & Johnson, Titusville, NJ (Dr Drevets); Neurobiology Research Unit, Rigshospitalet, Denmark (Dr Knudsen); Center for Integrated Molecular Brain Imaging, Rigshospitalet, Denmark (Dr Frokjaer and Mr Jensen); Department of Radiology, University of Turku, Turku, Finland (Dr Hirvonen); Department of Functional Brain Imaging Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan (Drs Ichise, Takano, and Suhara); IBS, Unit of Personality, Work and Health Psychology, University of Helsinki, Helsinki, Finland (Dr Keltikangas-Järvinen); Department of Psychology, Southern Illinois University, Carbondale, Illinois (Dr Klaver); Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark (Dr Knudsen); Center for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (Dr Takano); Department of Psychiatry, University of Turku, Turku, Finland (Dr Hietala)
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Rajkowska G, Mahajan G, Legutko B, Challagundla L, Griswold M, Albert PR, Daigle M, Miguel-Hidalgo JJ, Austin MC, Blakely RD, Steffens DC, Stockmeier CA. Length of axons expressing the serotonin transporter in orbitofrontal cortex is lower with age in depression. Neuroscience 2017; 359:30-39. [PMID: 28711621 DOI: 10.1016/j.neuroscience.2017.07.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 06/08/2017] [Accepted: 07/04/2017] [Indexed: 12/27/2022]
Abstract
Studies of major depressive disorder (MDD) in postmortem brain tissue report enhanced binding to inhibitory serotonin-1A autoreceptors in midbrain dorsal raphe and reductions in length of axons expressing the serotonin transporter (SERT) in dorsolateral prefrontal cortex. The length density of axons expressing SERT in the orbitofrontal cortex (OFC) was determined in 18 subjects with MDD and 17 age-matched control subjects. A monoclonal antibody was used to immunohistochemically label the SERT in fixed sections of OFC. The 3-dimensional length density of SERT-immunoreactive (ir) axons in layer VI of OFC was estimated. The age of subjects with MDD was negatively correlated with SERT axon length (r=-0.77, p<0.0005). The significant effect of age persisted when removing four depressed subjects with an antidepressant medication present at the time of death, or when removing nine depressed subjects that had a recent prescription for an antidepressant medication. Neither gender, tissue pH, postmortem interval, 5-HTTLPR genotype, time in fixative, nor death by suicide had a significant effect on axon length. The age-related decrease in SERT-ir axon length in MDD may reflect pathology of ascending axons passing through deep white matter hyperintensities. Greater length of axons expressing SERT in younger subjects with MDD may result in a significant deficit in serotonin availability in OFC.
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Affiliation(s)
- Grazyna Rajkowska
- Department of Psychiatry and Human Behavior, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA.
| | - Gouri Mahajan
- Department of Psychiatry and Human Behavior, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA.
| | - Beata Legutko
- Department of Psychiatry and Human Behavior, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA.
| | - Lavanya Challagundla
- Department of Data Science, JD Bower School of Population Health, University of Mississippi Medical Center, Jackson, MS 39216, USA.
| | - Michael Griswold
- Department of Data Science, JD Bower School of Population Health, University of Mississippi Medical Center, Jackson, MS 39216, USA.
| | - Paul R Albert
- Ottawa Hospital Research Institute (Neuroscience) and UOttawa Brain and Mind Research Institute, Ottawa, ON K1H 8M5, Canada.
| | - Mireille Daigle
- Ottawa Hospital Research Institute (Neuroscience) and UOttawa Brain and Mind Research Institute, Ottawa, ON K1H 8M5, Canada.
| | - Jose J Miguel-Hidalgo
- Department of Psychiatry and Human Behavior, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA.
| | - Mark C Austin
- Department of Biological Sciences, Idaho State University, Pocatello, ID 83209, USA.
| | - Randy D Blakely
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.
| | - David C Steffens
- Department of Psychiatry, University of Connecticut School of Medicine, Farmington, CT 06030, USA.
| | - Craig A Stockmeier
- Department of Psychiatry and Human Behavior, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA; Department of Psychiatry, Case Western Reserve University, Cleveland, OH 44106, USA.
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Zong S, Hoffmann C, Mané-Damas M, Molenaar P, Losen M, Martinez-Martinez P. Neuronal Surface Autoantibodies in Neuropsychiatric Disorders: Are There Implications for Depression? Front Immunol 2017; 8:752. [PMID: 28725222 PMCID: PMC5497139 DOI: 10.3389/fimmu.2017.00752] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/13/2017] [Indexed: 12/16/2022] Open
Abstract
Autoimmune diseases are affecting around 7.6-9.4% of the general population. A number of central nervous system disorders, including encephalitis and severe psychiatric disorders, have been demonstrated to associate with specific neuronal surface autoantibodies (NSAbs). It has become clear that specific autoantibodies targeting neuronal surface antigens and ion channels could cause severe mental disturbances. A number of studies have focused or are currently investigating the presence of autoantibodies in specific mental conditions such as schizophrenia and bipolar disorders. However, less is known about other conditions such as depression. Depression is a psychiatric disorder with complex etiology and pathogenesis. The diagnosis criteria of depression are largely based on symptoms but not on the origin of the disease. The question which arises is whether in a subgroup of patients with depression, the symptoms might be caused by autoantibodies targeting membrane-associated antigens. Here, we describe how autoantibodies targeting membrane proteins and ion channels cause pathological effects. We discuss the physiology of these antigens and their role in relation to depression. Finally, we summarize a number of studies detecting NSAbs with a special focus on cohorts that include depression diagnosis and/or show depressive symptoms.
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Affiliation(s)
- Shenghua Zong
- Division Neuroscience, School for Mental Health and Neuroscience, Maastricht University, Maastricht, Netherlands
| | - Carolin Hoffmann
- Division Neuroscience, School for Mental Health and Neuroscience, Maastricht University, Maastricht, Netherlands
| | - Marina Mané-Damas
- Division Neuroscience, School for Mental Health and Neuroscience, Maastricht University, Maastricht, Netherlands
| | - Peter Molenaar
- Division Neuroscience, School for Mental Health and Neuroscience, Maastricht University, Maastricht, Netherlands
| | - Mario Losen
- Division Neuroscience, School for Mental Health and Neuroscience, Maastricht University, Maastricht, Netherlands
| | - Pilar Martinez-Martinez
- Division Neuroscience, School for Mental Health and Neuroscience, Maastricht University, Maastricht, Netherlands
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Phf8 loss confers resistance to depression-like and anxiety-like behaviors in mice. Nat Commun 2017; 8:15142. [PMID: 28485378 PMCID: PMC5436068 DOI: 10.1038/ncomms15142] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 03/03/2017] [Indexed: 12/16/2022] Open
Abstract
PHF8 is a histone demethylase with specificity for repressive modifications. While mutations of PHF8 have been associated with cognitive defects and cleft lip/palate, its role in mammalian development and physiology remains unexplored. Here, we have generated a Phf8 knockout allele in mice to examine the consequences of Phf8 loss for development and behaviour. Phf8 deficient mice neither display obvious developmental defects nor signs of cognitive impairment. However, we report a striking resiliency to stress-induced anxiety- and depression-like behaviour on loss of Phf8. We further observe misregulation of serotonin signalling within the prefrontal cortex of Phf8 deficient mice and identify the serotonin receptors Htr1a and Htr2a as direct targets of PHF8. Our results clarify the functional role of Phf8 in mammalian development and behaviour and establish a direct link between Phf8 expression and serotonin signalling, identifying this histone demethylase as a potential target for the treatment of anxiety and depression.
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45
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Slattery DA, Cryan JF. Modelling depression in animals: at the interface of reward and stress pathways. Psychopharmacology (Berl) 2017; 234:1451-1465. [PMID: 28224183 DOI: 10.1007/s00213-017-4552-6] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 01/27/2017] [Indexed: 12/13/2022]
Abstract
RATIONALE Despite substantial research efforts the aetiology of major depressive disorder (MDD) remains poorly understood, which is due in part to the heterogeneity of the disorder and the complexity of designing appropriate animal models. However, in the last few decades, a focus on the development of novel stress-based paradigms and a focus on using hedonic/anhedonic behaviour have led to renewed optimism in the use of animal models to assess aspects of MDD. OBJECTIVES Therefore, in this review article, dedicated to Athina Markou, we summarise the use of stress-based animal models for studying MDD in rodents and how reward-related readouts can be used to validate/assess the model and/or treatment. RESULTS We reveal the use and limitations of chronic stress paradigms, which we split into non-social (i.e. chronic mild stress), social (i.e. chronic social defeat) and drug-withdrawal paradigms for studying MDD and detail numerous reward-related readouts that are employed in preclinical research. Finally, we finish with a section regarding important factors to consider when using animal models. CONCLUSIONS One of the most consistent findings following chronic stress exposure in rodents is a disruption of the brain reward system, which can be easily assessed using sucrose, social interaction, food, drug of abuse or intracranial self-stimulation as a readout. Probing the underlying causes of such alterations is providing a greater understanding of the potential systems and processes that are disrupted in MDD.
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Affiliation(s)
- D A Slattery
- Laboratory of Translational Psychiatry, Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Heinrich-Hoffmann-Str. 10, 60528, Frankfurt, Germany.
| | - J F Cryan
- APC Microbiome Institute, Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
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Abstract
With the antidepressant efficacy of Transcranial Magnetic Stimulation well-established by several meta-analyses, there is growing interest in its mechanism of action. TMS has been shown to engage, and in some cases, normalize functional connectivity and neurotransmitter levels within networks dysfunctional in the depressed state. In this review, I will suggest candidate biomarkers, based on neuroimaging, that may be predictive of response to TMS. I will then review the effects of TMS on networks and neurotransmitter systems involved in depression. Throughout, I will also discuss how our current understanding of response predication and network engagement may be used to personalize treatment and optimize its efficacy.
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Zoons E, Tijssen MAJ, Dreissen YEM, Speelman JD, Smit M, Booij J. The relationship between the dopaminergic system and depressive symptoms in cervical dystonia. Eur J Nucl Med Mol Imaging 2017; 44:1375-1382. [PMID: 28314910 PMCID: PMC5486819 DOI: 10.1007/s00259-017-3664-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 02/23/2017] [Indexed: 12/29/2022]
Abstract
PURPOSE Cervical dystonia (CD) is associated with tremor/jerks (50%) and psychiatric complaints (17-70%). The dopaminergic system has been implicated in the pathophysiology of CD in animal and imaging studies. Dopamine may be related to the motor as well as non-motor symptoms of CD. CD is associated with reduced striatal dopamine D2/3 (D2/3) receptor and increased dopamine transporter (DAT) binding. There are differences in the dopamine system between CD patients with and without jerks/tremor and psychiatric symptoms. METHODS Patients with CD and healthy controls underwent neurological and psychiatric examinations. Striatal DAT and D2/3 receptor binding were assessed using [123I]FP-CIT and [123I]IBZM SPECT, respectively. The ratio of specific striatal to non-specific binding (binding potential; BPND) was the outcome measure. RESULTS Twenty-seven patients with CD and 15 matched controls were included. Nineteen percent of patients fulfilled the criteria for a depression. Striatal DAT BPND was significantly lower in depressed versus non-depressed CD patients. Higher DAT BPND correlated significantly with higher scores on the Unified Myoclonus Rating Scale (UMRS). The striatal D2/3 receptor BPND in CD patients showed a trend towards lower binding compared to controls. The D2/3 BPND was significantly lower in depressed versus non-depressed CD patients. A significant correlation between DAT and D2/3R BPND was found in both in patients and controls. CONCLUSIONS Alterations of striatal DAT and D2/3 receptor binding in CD patients are related mainly to depression. DAT BPND correlates significantly with scores on the UMRS, suggesting a role for dopamine in the pathophysiology of tremor/jerks in CD.
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Affiliation(s)
- E Zoons
- Department of Neurology, Academic Medical Centre, Amsterdam, The Netherlands
| | - M A J Tijssen
- Department of Neurology, University Medical Centre, Groningen, The Netherlands
| | - Y E M Dreissen
- Department of Neurology, Academic Medical Centre, Amsterdam, The Netherlands
| | - J D Speelman
- Department of Neurology, Academic Medical Centre, Amsterdam, The Netherlands
| | - M Smit
- Department of Neurology, University Medical Centre, Groningen, The Netherlands
| | - J Booij
- Department of Nuclear Medicine, Academic Medical Centre, PO Box 22660, 1100 DD, Amsterdam, The Netherlands.
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Dysregulation of Striatal Dopamine Receptor Binding in Suicide. Neuropsychopharmacology 2017; 42:974-982. [PMID: 27402414 PMCID: PMC5312055 DOI: 10.1038/npp.2016.124] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 06/03/2016] [Accepted: 07/04/2016] [Indexed: 02/02/2023]
Abstract
Inconsistent evidence implicates disruptions of striatal dopaminergic indices in suicide and major depression. To determine whether there are alterations in the striatal dopamine system in suicide, we conducted a quantitative autoradiographic survey of dopamine transporter (DAT; [3H]mazindol), D1 receptor ([3H]SCH23390), and D2 receptor ([3H]sulpiride) binding in the dorsal striatum postmortem from matched suicides and controls. Axis I and axis II psychiatric diagnosis, recent treatment history, and early life adversity (ELA) were determined by psychological autopsy. Mean DAT, D2, and D1 receptor binding did not differ in suicide. However, there was a positive correlation between D1 and D2 receptor binding in the dorsal striatum of control subjects (R2=0.31, p<0.05) that was not present in suicides (R2=0.00, p=0.97). In suicides and controls with reported ELA, there was no correlation between striatal DAT and D1 receptor binding (R2=0.07, p=0.33), although DAT and D1 receptor binding was positively correlated in subjects with no report of ELA (R2=0.32, p<0.05). After controlling for age, there were no significant ELA-related mean differences. Binding of D1 receptors and DAT throughout the striatum correlated negatively with age (D1 receptor: R2=0.12, p<0.05; DAT: R2=0.36, p<0.001). There appears to be an imbalance in dopaminergic receptor and transporter expression related to suicide that differs from that associated with ELA or age.
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Dubin MJ, Liston C, Avissar MA, Ilieva I, Gunning FM. Network-Guided Transcranial Magnetic Stimulation for Depression. Curr Behav Neurosci Rep 2017; 4:70-77. [PMID: 28316903 DOI: 10.1007/s40473-017-0108-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PURPOSE OF REVIEW First, we will identify candidate predictive biomarkers of antidepressant response of TMS based on the neuroimaging literature. Next, we will review the effects of TMS on networks involved in depression. Finally, we will discuss ways in which our current understanding of network engagement by TMS may be used to optimize its antidepressant effect. RECENT FINDINGS The past few years has seen significant interest in the antidepressant mechanisms of TMS. Studies using functional neuroimaging and neurochemical imaging have demonstrated engagement of networks known to be important in depression. Current evidence supports a model whereby TMS normalizes network function gradually over the course of several treatments. This may, in turn, mediate its antidepressant effect. SUMMARY One strategy to optimize the antidepressant effect of TMS is to more precisely target networks relevant in depression. We propose methods to achieve this using functional and neurochemical imaging.
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Affiliation(s)
- Marc J Dubin
- Department of Psychiatry, Weill Cornell Medical College, New York, NY, 10065, USA; Feil Family Mind and Brain Institute, Weill Cornell Medical College, New York, NY, 10065, USA
| | - Conor Liston
- Department of Psychiatry, Weill Cornell Medical College, New York, NY, 10065, USA; Feil Family Mind and Brain Institute, Weill Cornell Medical College, New York, NY, 10065, USA; Sackler Institute for Developmental Psychobiology, Weill Cornell Medical College, New York, NY, 10065, USA
| | - Michael A Avissar
- Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY 10032, USA; Division of Experimental Therapeutics, New York State Psychiatric Institute
| | - Irena Ilieva
- Department of Psychiatry, Weill Cornell Medical College, New York, NY, 10065, USA; Institute of Geriatric Psychiatry, Weill Cornell Medical College, New York, NY, 10065, USA
| | - Faith M Gunning
- Department of Psychiatry, Weill Cornell Medical College, New York, NY, 10065, USA; Institute of Geriatric Psychiatry, Weill Cornell Medical College, New York, NY, 10065, USA
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Schrag A, Taddei RN. Depression and Anxiety in Parkinson's Disease. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2017; 133:623-655. [DOI: 10.1016/bs.irn.2017.05.024] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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