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Kim JH, Kim HK, Son YD, Kim JH. In Vivo Serotonin 5-HT2A Receptor Availability and Its Relationship with Aggression Traits in Healthy Individuals: A Positron Emission Tomography Study with C-11 MDL100907. Int J Mol Sci 2023; 24:15697. [PMID: 37958691 PMCID: PMC10647245 DOI: 10.3390/ijms242115697] [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: 10/12/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
Serotonergic neurotransmission has been associated with aggression in several psychiatric disorders. Human aggression is a continuum of traits, ranging from normal to pathological phenomena. However, the individual differences in serotonergic neurotransmission and their relationships with aggression traits in healthy individuals remain unclear. In this study, we explored the relationship between 5-HT2A receptor availability in vivo and aggression traits in healthy participants. Thirty-three healthy participants underwent 3-Tesla magnetic resonance imaging and positron emission tomography (PET) with [11C]MDL100907, a selective radioligand for 5-HT2A receptors. To quantify 5-HT2A receptor availability, the binding potential (BPND) was derived using the basis function implementation of the simplified reference tissue model, with the cerebellum as the reference region. The participants' aggression levels were assessed using the Buss-Perry Aggression Questionnaire. The voxel-based correlation analysis with age and sex as covariates revealed that the total aggression score was significantly positively correlated with [11C]MDL100907 BPND in the right middle temporal gyrus (MTG) pole, left fusiform gyrus (FUSI), right parahippocampal gyrus, and right hippocampus. The physical aggression subscale score had significant positive correlations with [11C]MDL100907 BPND in the left olfactory cortex, left orbital superior frontal gyrus (SFG), right anterior cingulate and paracingulate gyri, left orbitomedial SFG, left gyrus rectus, left MTG, left inferior temporal gyrus, and left angular gyrus. The verbal aggression subscale score showed significant positive correlations with [11C]MDL100907 BPND in the bilateral SFG, right medial SFG, left FUSI, and right MTG pole. Overall, our findings suggest the possibility of positive correlations between aggression traits and in vivo 5-HT2A receptor availability in healthy individuals. Future research should incorporate multimodal neuroimaging to investigate the downstream effects of 5-HT2A receptor-mediated signaling and integrate molecular and systems-level information in relation to aggression traits.
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Affiliation(s)
- Jeong-Hee Kim
- Neuroscience Research Institute, Gachon University, Incheon 21565, Republic of Korea
- Biomedical Engineering Research Center, Gachon University, Incheon 21936, Republic of Korea
- Department of Biomedical Engineering, College of IT Convergence, Gachon University, Seongnam-si 13120, Republic of Korea
| | - Hang-Keun Kim
- Neuroscience Research Institute, Gachon University, Incheon 21565, Republic of Korea
- Biomedical Engineering Research Center, Gachon University, Incheon 21936, Republic of Korea
- Department of Biomedical Engineering, College of IT Convergence, Gachon University, Seongnam-si 13120, Republic of Korea
| | - Young-Don Son
- Neuroscience Research Institute, Gachon University, Incheon 21565, Republic of Korea
- Biomedical Engineering Research Center, Gachon University, Incheon 21936, Republic of Korea
- Department of Biomedical Engineering, College of IT Convergence, Gachon University, Seongnam-si 13120, Republic of Korea
| | - Jong-Hoon Kim
- Neuroscience Research Institute, Gachon University, Incheon 21565, Republic of Korea
- Department of Psychiatry, Gachon University College of Medicine, Gil Medical Center, Gachon University, Incheon 21565, Republic of Korea
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2
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Jangard S, Jayaram-Lindström N, Isacsson NH, Matheson GJ, Plavén-Sigray P, Franck J, Borg J, Farde L, Cervenka S. Striatal dopamine D2 receptor availability as a predictor of subsequent alcohol use in social drinkers. Addiction 2023; 118:1053-1061. [PMID: 36710462 DOI: 10.1111/add.16144] [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: 09/06/2022] [Accepted: 01/11/2023] [Indexed: 01/31/2023]
Abstract
BACKGROUND AND AIMS Whereas striatal dopamine D2 receptor (D2R) availability has shown to be altered in individuals with alcohol use disorder (AUD) and in healthy individuals with a family history of AUD, the role of D2R in the development of AUD is unknown. In this positron emission tomography (PET) study, we measured whether D2R availability is associated with subsequent alcohol use and alcohol-related factors, at a follow-up 8 to 16 years post-PET scan, in social drinkers. DESIGN Longitudinal study investigating the association between PET data and later self-report measures in healthy individuals. SETTING Academic research imaging centre in Stockholm, Sweden. PARTICIPANTS There were 71 individuals (68 of whom had evaluable PET data, 5 females, 42.0 years mean age) from a series of previous PET studies. MEASUREMENTS One PET examination with the D2R antagonist radioligand [11 C]raclopride at baseline and self-report measures assessing alcohol use, drug use, impulsivity, reward sensitivity and family history of alcohol or substance use disorder at follow-up. FINDINGS We found no evidence for an association between D2R availability and later alcohol use (B = -0.019, B 95% CI = -0.043 to -0.006, P = 0.147) nor for the majority of the alcohol-related factors (B 95% CI = -0.034 to 0.004, P = 0.273-0.288). A negative association with a small effect size was found between D2R availability and later impulsivity (B = -0.017, B 95% CI = -0.034 to -0.001, P = 0.046). CONCLUSIONS Low striatal dopamine D2 receptor availability may not be a strong predictor in the development of alcohol use disorder.
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Affiliation(s)
- Simon Jangard
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden
- Division of Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Nitya Jayaram-Lindström
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden
| | - Nils Hentati Isacsson
- Division of Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Granville James Matheson
- Department of Psychiatry, Columbia University, New York City, New York, USA
- Department of Biostatistics, Columbia University Mailman School of Public Health, New York City, New York, USA
| | - Pontus Plavén-Sigray
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden
- Neurobiology Research Unit, Copenhagen University Hospital, Copenhagen, Denmark
| | - Johan Franck
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden
| | - Jacqueline Borg
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden
| | - Lars Farde
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden
| | - Simon Cervenka
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet and Stockholm Health Care Services, Stockholm, Sweden
- Department of Medical Sciences, Psychiatry, Uppsala University, Uppsala, Sweden
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3
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Mitelman SA, Buchsbaum MS, Vyas NS, Christian BT, Merrill BM, Buchsbaum BR, Mitelman AM, Mukherjee J, Lehrer DS. Reading abilities and dopamine D 2/D 3 receptor availability: An inverted U-shaped association in subjects with schizophrenia. BRAIN AND LANGUAGE 2021; 223:105046. [PMID: 34763166 DOI: 10.1016/j.bandl.2021.105046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 10/18/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
Reading impairments are prominent trait-like features of cognitive deficits in schizophrenia, predictive of overall cognitive functioning and presumably linked to dopaminergic abnormalities. To evaluate this, we used 18F-fallypride PET in 19 healthy and 21 antipsychotic-naïve schizophrenia subjects and correlated dopamine receptor binding potentials in relevant AFNI-derived regions and voxelwise with group performance on WRAT4 single-word reading subtest. Healthy subjects' scores were positively and linearly associated with D2/D3 receptor availability in the rectus, orbital and superior frontal gyri, fusiform and middle temporal gyri, as well as middle occipital gyrus and precuneus, all predominantly in the left hemisphere and previously implicated in reading, hence suggesting that higher dopamine receptor density is cognitively advantageous. This relationship was weakened in schizophrenia subjects and in contrast to healthy participants followed an inverted U-shaped curve both in the cortex and dorsal striatum, indicating restricted optimal range of dopamine D2/D3 receptor availability for cognitive performance in schizophrenia.
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Affiliation(s)
- Serge A Mitelman
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Psychiatry, Division of Child and Adolescent Psychiatry, Elmhurst Hospital Center, Elmhurst, NY, USA.
| | - Monte S Buchsbaum
- Departments of Psychiatry and Radiology, University of California San Diego, San Diego, USA; Department of Psychiatry and Human Behavior, University of California Irvine School of Medicine, Orange, CA, USA
| | - Nora S Vyas
- Kingston University London, Department of Psychology, Kingston upon Thames, Surrey, UK; Imperial College Healthcare NHS Trust, Charing Cross Hospital, Department of Nuclear Medicine, London, UK
| | - Bradley T Christian
- Waisman Laboratory for Brain Imaging and Behavior, University of Wisconsin-Madison, Madison, WI, USA
| | - Brian M Merrill
- Department of Psychiatry, Boonshoft School of Medicine, Wright State University, Dayton, OH, USA
| | - Bradley R Buchsbaum
- The Rotman Research Institute, Baycrest Centre for Geriatric Care and Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | | | - Jogeshwar Mukherjee
- Department of Radiological Sciences, Preclinical Imaging, University of California, Irvine School of Medicine, USA
| | - Douglas S Lehrer
- Department of Psychiatry, Boonshoft School of Medicine, Wright State University, Dayton, OH, USA
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4
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Hjorth OR, Frick A, Gingnell M, Hoppe JM, Faria V, Hultberg S, Alaie I, Månsson KNT, Wahlstedt K, Jonasson M, Lubberink M, Antoni G, Fredrikson M, Furmark T. Expression and co-expression of serotonin and dopamine transporters in social anxiety disorder: a multitracer positron emission tomography study. Mol Psychiatry 2021; 26:3970-3979. [PMID: 31822819 DOI: 10.1038/s41380-019-0618-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 11/20/2019] [Accepted: 11/21/2019] [Indexed: 11/09/2022]
Abstract
Serotonin and dopamine are putatively involved in the etiology and treatment of anxiety disorders, but positron emission tomography (PET) studies probing the two neurotransmitters in the same individuals are lacking. The aim of this multitracer PET study was to evaluate the regional expression and co-expression of the transporter proteins for serotonin (SERT) and dopamine (DAT) in patients with social anxiety disorder (SAD). Voxel-wise binding potentials (BPND) for SERT and DAT were determined in 27 patients with SAD and 43 age- and sex-matched healthy controls, using the radioligands [11C]DASB (3-amino-4-(2-dimethylaminomethylphenylsulfanyl)-benzonitrile) and [11C]PE2I (N-(3-iodopro-2E-enyl)-2beta-carbomethoxy-3beta-(4'-methylphenyl)nortropane). Results showed that, within transmitter systems, SAD patients exhibited higher SERT binding in the nucleus accumbens while DAT availability in the amygdala, hippocampus, and putamen correlated positively with symptom severity. At a more lenient statistical threshold, SERT and DAT BPND were also higher in other striatal and limbic regions in patients, and correlated with symptom severity, whereas no brain region showed higher binding in healthy controls. Moreover, SERT/DAT co-expression was significantly higher in SAD patients in the amygdala, nucleus accumbens, caudate, putamen, and posterior ventral thalamus, while lower co-expression was noted in the dorsomedial thalamus. Follow-up logistic regression analysis confirmed that SAD diagnosis was significantly predicted by the statistical interaction between SERT and DAT availability, in the amygdala, putamen, and dorsomedial thalamus. Thus, SAD was associated with mainly increased expression and co-expression of the transporters for serotonin and dopamine in fear and reward-related brain regions. Resultant monoamine dysregulation may underlie SAD symptomatology and constitute a target for treatment.
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Affiliation(s)
- Olof R Hjorth
- Department of Psychology, Uppsala University, Uppsala, Sweden.
| | - Andreas Frick
- Department of Psychology, Uppsala University, Uppsala, Sweden.,The Beijer Laboratory, Department of Neuroscience, Psychiatry, Uppsala University, Uppsala, Sweden.,Department of Neuroscience, Psychiatry, Uppsala University, Uppsala, Sweden
| | - Malin Gingnell
- Department of Psychology, Uppsala University, Uppsala, Sweden.,Department of Neuroscience, Psychiatry, Uppsala University, Uppsala, Sweden
| | - Johanna M Hoppe
- Department of Psychology, Uppsala University, Uppsala, Sweden
| | - Vanda Faria
- Department of Psychology, Uppsala University, Uppsala, Sweden.,Center for Pain and the Brain, Department of Anesthesiology Perioperative and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.,Smell & Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Dresden, Germany
| | - Sara Hultberg
- Department of Psychology, Uppsala University, Uppsala, Sweden
| | - Iman Alaie
- Department of Neuroscience, Child and Adolescent Psychiatry, Uppsala University, Uppsala, Sweden
| | - Kristoffer N T Månsson
- Centre for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany.,Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Max Planck UCL Centre for Computational Psychiatry and Ageing Research, Berlin, Germany
| | - Kurt Wahlstedt
- Department of Psychology, Uppsala University, Uppsala, Sweden
| | - My Jonasson
- Department of Surgical Sciences-Nuclear medicine and PET, Uppsala University, Uppsala, Sweden
| | - Mark Lubberink
- Department of Surgical Sciences-Nuclear medicine and PET, Uppsala University, Uppsala, Sweden
| | - Gunnar Antoni
- Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Mats Fredrikson
- Department of Psychology, Uppsala University, Uppsala, Sweden.,Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Tomas Furmark
- Department of Psychology, Uppsala University, Uppsala, Sweden
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5
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Granero R, Fernández-Aranda F, Pino-Gutierrez AD, Etxandi M, Baenas I, Gómez-Peña M, Moragas L, Valenciano-Mendoza E, Mora-Maltas B, Valero-Solís S, Codina E, Guillén-Guzmán E, Lara-Huallipe M, Caravaca E, Mestre-Bach G, Menchón JM, Jiménez-Murcia S. The prevalence and features of schizophrenia among individuals with gambling disorder. J Psychiatr Res 2021; 136:374-383. [PMID: 33639330 DOI: 10.1016/j.jpsychires.2021.02.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/29/2021] [Accepted: 02/08/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND-OBJECTIVES Few studies have analyzed the comorbid presence of gambling disorder (GD) with schizophrenia, its sociodemographic correlates and clinical implications. This study estimated the prevalence of the dual diagnosis (GD with schizophrenia) and the differences in the profiles of patients with and without the dual condition. METHOD The sample included n = 3,754 patients consecutively accepted for treatment for GD. Sociodemographics, gambling-related variables, psychopathological state and personality traits were assessed and compared between the groups. RESULTS The prevalence of schizophrenia within patients who met clinical criteria for GD was 4.4% (95% confidence interval: 3.8%-5.1%). Variables related to the dual presence of GD with schizophrenia were single marital status, lower education level, inactive working status, socioeconomic disadvantage, younger age, earlier onset of gambling problems, worse global psychopathological state and more dysfunctional personality profile (higher level in harm avoidance and lower level in cooperativeness, reward dependence, persistence and self-directedness). CONCLUSION The presence of schizophrenia among patients with GD was around 4 times higher than the prevalence rate estimated in the reference general population. The differences in the profiles of GD patients with and without schizophrenia suggest that individuals with the dual diagnosis condition require unique assessment considerations and tailored treatment interventions specifically designed for the clinical and functioning higher risk.
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Affiliation(s)
- Roser Granero
- Department of Psychobiology and Methodology, Universitat Autònoma de Barcelona - UAB, Spain; Ciber Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto Salud Carlos III, Madrid, Spain.
| | - Fernando Fernández-Aranda
- Ciber Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto Salud Carlos III, Madrid, Spain; Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain; Psychiatry and Mental Health Group, Neuroscience Program, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, L'Hospitalet de Llobregat, Spain; Department of Clinical Sciences, School of Medicine, Universitat de Barcelona - UB, L'Hospitalet de Llobregat, Spain.
| | - Amparo Del Pino-Gutierrez
- Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain; Department of Public Health, Mental Health and Mother-Infant Nursing, School of Nursing, University of Barcelona, Barcelona, Spain.
| | - Mikel Etxandi
- Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain.
| | - Isabel Baenas
- Ciber Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto Salud Carlos III, Madrid, Spain; Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain.
| | - Mónica Gómez-Peña
- Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain.
| | - Laura Moragas
- Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain.
| | | | - Bernat Mora-Maltas
- Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain.
| | - Susana Valero-Solís
- Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain.
| | - Ester Codina
- Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain.
| | - Elías Guillén-Guzmán
- Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences, Hospital Clínic Universitari, Barcelona, Spain.
| | - Milagros Lara-Huallipe
- Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain.
| | - Elena Caravaca
- Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain.
| | - Gemma Mestre-Bach
- Ciber Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto Salud Carlos III, Madrid, Spain; Universidad Internacional de La Rioja, Logroño, La Rioja, Spain.
| | - José M Menchón
- Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain; Department of Clinical Sciences, School of Medicine, Universitat de Barcelona - UB, L'Hospitalet de Llobregat, Spain; CIBER Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Barcelona, Spain.
| | - Susana Jiménez-Murcia
- Ciber Fisiopatología Obesidad y Nutrición (CIBERobn), Instituto Salud Carlos III, Madrid, Spain; Department of Psychiatry, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain; Psychiatry and Mental Health Group, Neuroscience Program, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, L'Hospitalet de Llobregat, Spain; Department of Clinical Sciences, School of Medicine, Universitat de Barcelona - UB, L'Hospitalet de Llobregat, Spain.
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6
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Kilbourn MR. 11C- and 18F-Radiotracers for In Vivo Imaging of the Dopamine System: Past, Present and Future. Biomedicines 2021; 9:108. [PMID: 33499179 PMCID: PMC7912183 DOI: 10.3390/biomedicines9020108] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/17/2021] [Accepted: 01/19/2021] [Indexed: 12/17/2022] Open
Abstract
The applications of positron emission tomography (PET) imaging to study brain biochemistry, and in particular the aspects of dopamine neurotransmission, have grown significantly over the 40 years since the first successful in vivo imaging studies in humans. In vivo PET imaging of dopaminergic functions of the central nervous system (CNS) including dopamine synthesis, vesicular storage, synaptic release and receptor binding, and reuptake processes, are now routinely used for studies in neurology, psychiatry, drug abuse and addiction, and drug development. Underlying these advances in PET imaging has been the development of the unique radiotracers labeled with positron-emitting radionuclides such as carbon-11 and fluorine-18. This review focuses on a selection of the more accepted and utilized PET radiotracers currently available, with a look at their past, present and future.
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Affiliation(s)
- Michael R Kilbourn
- Department of Radiology, University of Michigan Medical School, Ann Arbor, MI 48105, USA
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7
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Shao X, Sun D, Zhang B, Cheng L, Yan C, Zhu G. Association between GPx-1 polymorphisms and personality traits in healthy Chinese-Han subjects. Brain Behav 2020; 10:e01897. [PMID: 33070477 PMCID: PMC7749609 DOI: 10.1002/brb3.1897] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/22/2020] [Accepted: 09/27/2020] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES Cloninger developed the three-dimensional personality theory and Tridimensional Personality Questionnaire (TPQ), which shows that some dimensions of personality traits are heritable and related to neurotransmitters including dopamine. glutathione peroxidase 1 (GPx1) plays an important role in metabolic dopamine change and closely relates to neurological and psychiatric disorders. The impact of GPx-1 polymorphisms has been rarely explored in the field of personality traits. We decide to explore the relationships between them in healthy Chinese-Han subjects by using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). METHODS In our study, 493 healthy Chinese-Han participants (male = 234, female = 259) were recruited. 2 ml of EDTA-treated blood from each volunteer was taken; meanwhile, personality traits were assessed by TPQ. We detected the genotypes of selected two polymorphisms through PCR-RFLP after extracting DNA. Finally, the association between different genotypes and TPQ scores was performed using SPSS, p < .05 is seen as significant statistical significance. RESULTS Our data found a correlation between rs1800668 and novelty seeking (NS) subscale NS2 (X2 = 7.392, p = .025). While the results showed the rs1050450 was significantly associated with NS4 (X2 = 6.059, p = .048). Regarding sex stratification, there was a significant difference in the NS2 score (X2 = 8.232, p = .016) among women for rs1800668. No sex effect was observed for either genotype for rs1050450. CONCLUSION GPx-1polymorphism is related to personality traits in healthy Chinese-Han subjects. Our results suggested that GPx-1 may be involved in the biological mechanisms and be a potential gene that influenced personality.
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Affiliation(s)
- Xiaojun Shao
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Dongxue Sun
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Bihui Zhang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Lingfei Cheng
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Ci Yan
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Gang Zhu
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China.,Central Laboratory, The First Affiliated Hospital of China Medical University, Shenyang, China
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8
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Xu Q, Liu F, Qin W, Jiang T, Yu C. Multiscale neurobiological correlates of human neuroticism. Hum Brain Mapp 2020; 41:4730-4743. [PMID: 32839993 PMCID: PMC7555066 DOI: 10.1002/hbm.25153] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 06/26/2020] [Accepted: 07/18/2020] [Indexed: 12/19/2022] Open
Abstract
Neuroticism is a heritable personality trait associated with negative emotionality; however, we know little regarding the association between the microscale and macroscale neurobiological substrates of human neuroticism. Cross‐scale correlation analysis may provide such information. In this study, voxel‐wise neuroimaging–neuroticism correlation analyses consistently showed a positive correlation between neuroticism and functional connectivity density (FCD) in the ventral striatum in 274 young Chinese adults. Partial least squares regression analysis showed that the FCD‐neuroticism correlation map was significantly spatially correlated with gene expression profiles in each of six donated human brains. Neuroticism‐related genes derived from the six donors consistently showed significant enrichment in the chemical synaptic transmission, circadian entrainment, long‐term potentiation, inflammatory mediator regulation of transient receptor potential channels, and amphetamine addiction pathways. The protein–protein interaction analysis revealed four hub genes involved in the above pathways, including G protein subunit gamma 10, 5‐hydroxytryptamine receptor 2C, prodynorphin, and calcium/calmodulin‐dependent protein kinase II alpha. By combining multiscale correlation analyses and functional annotations, this study advances our understanding of the genetic and neural substrates of human neuroticism and emphasizes the importance of striatal functional properties in human neuroticism.
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Affiliation(s)
- Qiang Xu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Feng Liu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Wen Qin
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China
| | - Tianzi Jiang
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing, China.,CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Chunshui Yu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin, China.,CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
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9
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Costache ME, Frick A, Månsson K, Engman J, Faria V, Hjorth O, Hoppe JM, Gingnell M, Frans Ö, Björkstrand J, Rosén J, Alaie I, Åhs F, Linnman C, Wahlstedt K, Tillfors M, Marteinsdottir I, Fredrikson M, Furmark T. Higher- and lower-order personality traits and cluster subtypes in social anxiety disorder. PLoS One 2020; 15:e0232187. [PMID: 32348331 PMCID: PMC7190155 DOI: 10.1371/journal.pone.0232187] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 04/08/2020] [Indexed: 02/03/2023] Open
Abstract
Social anxiety disorder (SAD) can come in different forms, presenting problems for diagnostic classification. Here, we examined personality traits in a large sample of patients (N = 265) diagnosed with SAD in comparison to healthy controls (N = 164) by use of the Revised NEO Personality Inventory (NEO-PI-R) and Karolinska Scales of Personality (KSP). In addition, we identified subtypes of SAD based on cluster analysis of the NEO-PI-R Big Five personality dimensions. Significant group differences in personality traits between patients and controls were noted on all Big Five dimensions except agreeableness. Group differences were further noted on most lower-order facets of NEO-PI-R, and nearly all KSP variables. A logistic regression analysis showed, however, that only neuroticism and extraversion remained significant independent predictors of patient/control group when controlling for the effects of the other Big Five dimensions. Also, only neuroticism and extraversion yielded large effect sizes when SAD patients were compared to Swedish normative data for the NEO-PI-R. A two-step cluster analysis resulted in three separate clusters labelled Prototypical (33%), Introvert-Conscientious (29%), and Instable-Open (38%) SAD. Individuals in the Prototypical cluster deviated most on the Big Five dimensions and they were at the most severe end in profile analyses of social anxiety, self-rated fear during public speaking, trait anxiety, and anxiety-related KSP variables. While additional studies are needed to determine if personality subtypes in SAD differ in etiological and treatment-related factors, the present results demonstrate considerable personality heterogeneity in socially anxious individuals, further underscoring that SAD is a multidimensional disorder.
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Affiliation(s)
| | - Andreas Frick
- The Beijer Laboratory, Department of Neuroscience, Uppsala University, Uppsala, Sweden
| | - Kristoffer Månsson
- Department of Psychology, Uppsala University, Uppsala, Sweden
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, & Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden
- Max Planck UCL Centre for Computational Psychiatry and Ageing Research, Berlin, Germany and London, United Kingdom
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
| | - Jonas Engman
- Department of Psychology, Uppsala University, Uppsala, Sweden
| | - Vanda Faria
- Department of Psychology, Uppsala University, Uppsala, Sweden
- Center for Pain and The Brain, Department of Anesthesiology, Harvard Medical School, Boston Children’s Hospital, Perioperative and Pain Medicine, Boston, MA, United States of America
- Department of Otorhinolaryngology, Smell & Taste Clinic, TU Dresden, Dresden, Germany
| | - Olof Hjorth
- Department of Psychology, Uppsala University, Uppsala, Sweden
| | | | - Malin Gingnell
- Department of Psychology, Uppsala University, Uppsala, Sweden
- Department of Neuroscience, Uppsala University, Uppsala, Sweden
| | - Örjan Frans
- Department of Psychology, Uppsala University, Uppsala, Sweden
| | - Johannes Björkstrand
- Department of Psychology, Uppsala University, Uppsala, Sweden
- Department of Psychology, Lund University, Lund, Sweden
| | - Jörgen Rosén
- Department of Psychology, Uppsala University, Uppsala, Sweden
| | - Iman Alaie
- Department of Psychology, Uppsala University, Uppsala, Sweden
- Department of Neuroscience, Child and Adolescent Psychiatry, Uppsala University, Uppsala, Sweden
| | - Fredrik Åhs
- Department of Psychology and Social Work, Mid Sweden University, Östersund, Sweden
| | - Clas Linnman
- Harvard Medical School, Spaulding Rehabilitation Hospital, Boston, MA, United States of America
| | - Kurt Wahlstedt
- Department of Psychology, Uppsala University, Uppsala, Sweden
| | - Maria Tillfors
- Department of Social and Psychological Studies, Karlstad University, Karlstad, Sweden
| | - Ina Marteinsdottir
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Mats Fredrikson
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Tomas Furmark
- Department of Psychology, Uppsala University, Uppsala, Sweden
- * E-mail:
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10
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Abstract
PURPOSE OF REVIEW To give an update on recent imaging studies probing positron emission tomography (PET) as a tool for improving biomarker-guided diagnosis of neuropsychiatric disorders. RECENT FINDINGS Several studies confirmed the value of imaging of regional neuronal activity and imaging of dopaminergic, serotonergic, and other neuroreceptor function in the diagnostic process of neuropsychiatric disorders, particularly schizophrenia, depression/bipolar disorder, substance use disorders, obsessive compulsive disorders (OCD), and attention-deficit/hyperactivity disorder. Additionally, imaging brain microglial activation using translocator protein 18 kDa (TSPO) radiotracer allows for unique in-vivo insights into pathophysiological neuroinflammatory changes underlying schizophrenia, affective disorders, and OCD. SUMMARY The role of PET imaging in the biomarker-guided diagnostic process of neuropsychiatric disorders has been increasingly acknowledged in recent years. Future prospective studies are needed to define the value of PET imaging for diagnosis, treatment decisions, and prognosis in neuropsychiatric disorders.
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11
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Zimmer L. [PET imaging for better understanding of normal and pathological neurotransmission]. Biol Aujourdhui 2019; 213:109-120. [PMID: 31829931 DOI: 10.1051/jbio/2019025] [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: 09/17/2019] [Indexed: 11/14/2022]
Abstract
Positron emission tomography imaging is still an expanding field of preclinical and clinical investigations exploring the brain and its normal and pathological functions. In addition to technological improvements in PET scanners, the availability of suitable radiotracers for unexplored pharmacological targets is a key factor in this expansion. Many radiotracers (or radiopharmaceuticals, when administered to humans) have been developed by multidisciplinary teams to visualize and quantify a growing numbers of brain receptors, transporters, enzymes and other targets. The development of new PET radiotracers still represents an exciting challenge, given the large number of neurochemical functions that remain to be explored. In this article, we review the development context of the first preclinical radiotracers and their passage to humans. The main current contributions of PET radiotracers are described in terms of imaging neuronal metabolism, quantification of receptors and transporters, neurodegenerative and neuroinflammatory imaging. The different approaches to functional imaging of neurotransmission are also discussed. Finally, the contributions of PET imaging to the research and development of new brain drugs are described.
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Affiliation(s)
- Luc Zimmer
- Centre de Recherche en Neurosciences de Lyon (CNRS - INSERM - Université Claude Bernard Lyon 1), Lyon, France - CERMEP-Imagerie du Vivant, Hospices Civils de Lyon, Bron, France - Institut National des Sciences et Techniques Nucléaires, CEA, Saclay, France
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12
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Abstract
Whole brain dynamics intuitively depend upon the internal wiring of the brain; but to which extent the individual structural connectome constrains the corresponding functional connectome is unknown, even though its importance is uncontested. After acquiring structural data from individual mice, we virtualized their brain networks and simulated in silico functional MRI data. Theoretical results were validated against empirical awake functional MRI data obtained from the same mice. We demonstrate that individual structural connectomes predict the functional organization of individual brains. Using a virtual mouse brain derived from the Allen Mouse Brain Connectivity Atlas, we further show that the dominant predictors of individual structure-function relations are the asymmetry and the weights of the structural links. Model predictions were validated experimentally using tracer injections, identifying which missing connections (not measurable with diffusion MRI) are important for whole brain dynamics in the mouse. Individual variations thus define a specific structural fingerprint with direct impact upon the functional organization of individual brains, a key feature for personalized medicine.
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13
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Lozupone M, La Montagna M, D'Urso F, Daniele A, Greco A, Seripa D, Logroscino G, Bellomo A, Panza F. The Role of Biomarkers in Psychiatry. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1118:135-162. [PMID: 30747421 DOI: 10.1007/978-3-030-05542-4_7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Psychiatric illnesses are cognitive and behavioral disorders of the brain. At present, psychiatric diagnosis is based on DSM-5 criteria. Even if endophenotype specificity for psychiatric disorders is discussed, it is difficult to study and identify psychiatric biomarkers to support diagnosis, prognosis, or clinical response to treatment. This chapter investigates the innovative biomarkers of psychiatric diseases for diagnosis and personalized treatment, in particular post-genomic data and proteomic analyses.
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Affiliation(s)
- Madia Lozupone
- Neurodegenerative Disease Unit, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari, Italy
| | - Maddalena La Montagna
- Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Francesca D'Urso
- Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Antonio Daniele
- Institute of Neurology, Catholic University of Sacred Heart, Rome, Italy.,Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Antonio Greco
- Geriatric Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, Foggia, Italy
| | - Davide Seripa
- Geriatric Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, Foggia, Italy
| | - Giancarlo Logroscino
- Neurodegenerative Disease Unit, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari, Italy.,Department of Clinical Research in Neurology, University of Bari Aldo Moro, Lecce, Italy
| | - Antonello Bellomo
- Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Francesco Panza
- Neurodegenerative Disease Unit, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari, Italy. .,Geriatric Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, Foggia, Italy. .,Department of Clinical Research in Neurology, University of Bari Aldo Moro, Lecce, Italy.
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14
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Kim JH, Choe YS, Cumming P, Son YD, Kim HK, Joo YH, Kim JH. Relationship of self-transcendence traits with in vivo dopamine D2/3 receptor availability and functional connectivity: An [ 18 F]fallypride PET and fMRI study. Synapse 2019; 73:e22121. [PMID: 31206840 DOI: 10.1002/syn.22121] [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] [Received: 04/02/2019] [Revised: 05/30/2019] [Accepted: 06/08/2019] [Indexed: 12/13/2022]
Abstract
Genetic research has implicated dopamine neurotransmission in the expression of the self-transcendence trait in humans. However, molecular imaging of dopaminergic markers is undocumented in relation to this personality trait. In this multimodal imaging study, we first investigated the relationship between the self-transcendence trait and in vivo dopamine D2/3 receptor availability using [18 F]fallypride positron emission tomography (PET). We next conducted seed-based functional connectivity analyses using resting-state functional magnetic resonance imaging (rs-fMRI) data with regions derived from the PET analysis as seeds to explore the functional significance of D2/3 receptor availability foci associated with the self-transcendence trait. Twenty-one healthy subjects underwent high-resolution PET with [18 F]fallypride and a subset of 18 subjects also completed 3-Tesla rs-fMRI. The Temperament and Character Inventory was used to measure the self-transcendence trait. A voxel-based whole brain analysis revealed that the [18 F]fallypride binding potential (BPND ) within the cluster of the left insula was significantly positively correlated with self-transcendence trait scores. A region-of-interest analysis also showed a significant positive correlation between self-transcendence and [18 F]fallypride BPND in the left insula. The exploratory [18 F]fallypride BPND seed-based rs-fMRI analysis showed that the functional connectivity from the left insula seed to the prefrontal cortices (including the inferior frontal region) was negatively associated with self-transcendence trait scores. The results of the present study suggest that D2/3 receptor-mediated neurotransmission in the left insula may constitute a significant neurobiological factor in the self-transcendence trait. The negative associations between BPND seed-based functional connectivity and self-transcendence trait scores may suggest reduced prefrontal control in this personality trait.
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Affiliation(s)
- Jeong-Hee Kim
- Research Institute for Advanced Industrial Technology, Korea University, Sejong, South Korea.,Neuroscience Research Institute, Gachon University, Incheon, South Korea
| | - Yi-Seul Choe
- Neuroscience Research Institute, Gachon University, Incheon, South Korea
| | - Paul Cumming
- Department of Nuclear Medicine, Inselspital, Bern University, Bern, Switzerland.,School of Psychology and Counselling and IHBI, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Young-Don Son
- Neuroscience Research Institute, Gachon University, Incheon, South Korea.,Department of Biomedical Engineering, College of Health Science, Gachon University, Incheon, South Korea
| | - Hang-Keun Kim
- Neuroscience Research Institute, Gachon University, Incheon, South Korea.,Department of Biomedical Engineering, College of Health Science, Gachon University, Incheon, South Korea
| | - Yo-Han Joo
- Neuroscience Research Institute, Gachon University, Incheon, South Korea
| | - Jong-Hoon Kim
- Neuroscience Research Institute, Gachon University, Incheon, South Korea.,Department of Psychiatry, Gachon University College of Medicine, Gil Medical Center, Gachon University, Incheon, South Korea
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15
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Muñoz-Negro JE, Prudent C, Gutiérrez B, Cervilla JA. Paranoia and risk of personality disorder in the general population. Personal Ment Health 2019; 13:107-116. [PMID: 30989831 DOI: 10.1002/pmh.1443] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 01/14/2019] [Accepted: 03/13/2019] [Indexed: 01/26/2023]
Abstract
BACKGROUND We hypothesized that paranoia is associated with personality disorder (PD) in the general population. METHOD This was a population-based cross-sectional survey carried out in Andalusia (Spain) using a representative sample of 4 507 participants. Paranoia was measured using the Green Paranoid Thought Scale, and risk of having a PD was screened using the Standardized Assessment of Personality Abbreviated Scale whilst borderline personality disorder (BPD) was measured with the CEPER-III Exploratory Interview of Personality disorder. Adjusted Pearsons' correlations between paranoia and PD or BPD were calculated. RESULTS Paranoia was associated with the risk of having PD and, more robustly, with BPD. Both associations held true for both personality outcomes (PD and BPD) when tested for two Green Paranoid Thought Scale paranoia subtypes (persecutory and reference) after accounting for the effects of age, sex and child abuse. CONCLUSIONS Paranoia seems to either augment the risk for, or be part of, PD/BPD. © 2019 John Wiley & Sons, Ltd.
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Affiliation(s)
- José E Muñoz-Negro
- Unidad de Salud Mental, Hospital Universitario San Cecilio de Granada, Instituto Biosanitario de Granada, Servicio Andaluz de Salud, Granada, Spain
| | - Cécile Prudent
- Equipe Émergente de Recherche, BePsyLab, Université d' Angers, Angers, France
| | - Blanca Gutiérrez
- Departamento de Psiquiatría, Facultad de Medicina, Universidad de Granada, Granada, Spain
| | - Jorge A Cervilla
- Unidad de Salud Mental, Hospital Universitario San Cecilio de Granada, Instituto Biosanitario de Granada, Servicio Andaluz de Salud, Granada, Spain.,Departamento de Psiquiatría, Facultad de Medicina, Universidad de Granada, Granada, Spain
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16
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Uher J, Trofimova I, Sulis W, Netter P, Pessoa L, Posner MI, Rothbart MK, Rusalov V, Peterson IT, Schmidt LA. Diversity in action: exchange of perspectives and reflections on taxonomies of individual differences. Philos Trans R Soc Lond B Biol Sci 2019; 373:rstb.2017.0172. [PMID: 29483355 DOI: 10.1098/rstb.2017.0172] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2018] [Indexed: 12/31/2022] Open
Abstract
Throughout the last 2500 years, the classification of individual differences in healthy people and their extreme expressions in mental disorders has remained one of the most difficult challenges in science that affects our ability to explore individuals' functioning, underlying psychobiological processes and pathways of development. To facilitate analyses of the principles required for studying individual differences, this theme issue brought together prominent scholars from diverse backgrounds of which many bring unique combinations of cross-disciplinary experiences and perspectives that help establish connections and promote exchange across disciplines. This final paper presents brief commentaries of some of our authors and further scholars exchanging perspectives and reflecting on the contributions of this theme issue.This article is part of the theme issue 'Diverse perspectives on diversity: multi-disciplinary approaches to taxonomies of individual differences'.
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Affiliation(s)
- Jana Uher
- University of Greenwich, Old Royal Naval College, Park Row, London SE10 9LS, United Kingdom .,London School of Economics, Houghton Street, WC2A 2AE London, United Kingdom
| | - Irina Trofimova
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Canada
| | - William Sulis
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Canada
| | - Petra Netter
- Department of Psychology, University of Giessen, Germany
| | - Luiz Pessoa
- Department of Psychology and Maryland Neuroimaging Center, University of Maryland, College Park, Maryland, USA
| | | | | | - Vladimir Rusalov
- Institute of Psychology, Russian Academy of Sciences, Druzhinin Laboratory of Abilities, Moscow, Russia
| | - Isaac T Peterson
- Department of Psychological and Brain Sciences, University of Iowa, USA
| | - Louis A Schmidt
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Canada
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17
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Caravaggio F, Plavén-Sigray P, Matheson GJ, Plitman E, Chakravarty MM, Borg J, Graff-Guerrero A, Cervenka S. Trait impulsivity is not related to post-commissural putamen volumes: A replication study in healthy men. PLoS One 2018; 13:e0209584. [PMID: 30571791 PMCID: PMC6301704 DOI: 10.1371/journal.pone.0209584] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 12/07/2018] [Indexed: 01/18/2023] Open
Abstract
High levels of trait impulsivity are considered a risk factor for substance abuse and drug addiction. We recently found that non-planning trait impulsivity was negatively correlated with post-commissural putamen volumes in men, but not women, using the Karolinska Scales of Personality (KSP). Here, we attempted to replicate this finding in an independent sample using an updated version of the KSP: the Swedish Universities Scales of Personality (SSP). Data from 88 healthy male participants (Mean Age: 28.16±3.34), who provided structural T1-weighted magnetic resonance images (MRIs) and self-reported SSP impulsivity scores, were analyzed. Striatal sub-region volumes were acquired using the Multiple Automatically Generated Templates (MAGeT-Brain) algorithm. Contrary to our previous findings trait impulsivity measured using SSP was not a significant predictor of post-commissural putamen volumes (β = .14, df = 84, p = .94). A replication Bayes Factors analysis strongly supported this null result. Consistent with our previous findings, secondary exploratory analyses found no relationship between ventral striatum volumes and SSP trait impulsivity (β = -.05, df = 84, p = .28). An exploratory analysis of the other striatal compartments showed that there were no significant associations with trait impulsivity. While we could not replicate our previous findings in the current sample, we believe this work will aide future studies aimed at establishing meaningful brain biomarkers for addiction vulnerability in healthy humans.
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Affiliation(s)
- Fernando Caravaggio
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Pontus Plavén-Sigray
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE, Stockholm, Sweden
| | - Granville James Matheson
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE, Stockholm, Sweden
| | - Eric Plitman
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - M. Mallar Chakravarty
- Department of Biological & Biomedical Engineering, McGill University, Montreal, Quebec, Canada
- Cerebral Imaging Centre, Douglas Mental Health Institute, McGill University, Montreal, Quebec, Canada
- Department of Psychiatry, McGill University, Montreal, Quebec, Canada
| | - Jacqueline Borg
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE, Stockholm, Sweden
| | - Ariel Graff-Guerrero
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Simon Cervenka
- Department of Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institutet and Stockholm County Council, SE, Stockholm, Sweden
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18
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Robbins TW. Opinion on monoaminergic contributions to traits and temperament. Philos Trans R Soc Lond B Biol Sci 2018; 373:20170153. [PMID: 29483339 PMCID: PMC5832679 DOI: 10.1098/rstb.2017.0153] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2017] [Indexed: 12/12/2022] Open
Abstract
This article critically reviews evidence relating temperamental traits and personality factors to the monoamine neurotransmitters, especially dopamine and serotonin. The genetic evidence is not yet considered to be conclusive and it is argued that basic neuroscience research on the neural basis of behaviour in experimental animals should be taken more into account. While questionnaire and lexical methodology including the 'Five Factor' theory has been informative (mostly for the traits relevant to social functioning, i.e. personality), biologically oriented approaches should be employed with more objective, theoretically grounded measures of cognition and behaviour, combined with neuroimaging and psychopharmacology, where appropriate. This strategy will enable specific functions of monoamines and other neuromodulators such as acetylcholine and neuropeptides (such as orexin) to be defined with respect to their roles in modulating activity in specific neural networks-leading to a more realistic definition of their interactive roles in complex, biologically based traits (i.e. temperament).This article is part of the theme issue 'Diverse perspectives on diversity: multi-disciplinary approaches to taxonomies of individual differences'.
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Affiliation(s)
- T W Robbins
- Department of Psychology and Behavioural and Clinical Neuroscience Institute, University of Cambridge, Downing Street, Cambridge CB2 3EB, UK
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19
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Trofimova I, Robbins TW, Sulis WH, Uher J. Taxonomies of psychological individual differences: biological perspectives on millennia-long challenges. Philos Trans R Soc Lond B Biol Sci 2018; 373:20170152. [PMID: 29483338 PMCID: PMC5832678 DOI: 10.1098/rstb.2017.0152] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/19/2017] [Indexed: 12/14/2022] Open
Abstract
This Editorial highlights a unique focus of this theme issue on the biological perspectives in deriving psychological taxonomies coming from neurochemistry, neuroanatomy, neurophysiology, genetics, psychiatry, developmental and comparative psychology-as contrasted to more common discussions of socio-cultural concepts (personality) and methods (lexical approach). It points out the importance of the distinction between temperament and personality for studies in human and animal differential psychophysiology, psychiatry and psycho-pharmacology, sport and animal practices during the past century. It also highlights the inability of common statistical methods to handle nonlinear, feedback, contingent, dynamical and multi-level relationships between psychophysiological systems of consistent psychological traits discussed in this theme issue.This article is part of the theme issue 'Diverse perspectives on diversity: multi-disciplinary approaches to taxonomies of individual differences'.
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Affiliation(s)
- I Trofimova
- CILab, McMaster University, 92 Bowman St., Hamilton, ON, Canada, L8S 2T6
| | - T W Robbins
- University of Cambridge, Psychology and Behavioural and Clinical Neuroscience Institute, Cambridge CB2 3EB, UK
| | - W H Sulis
- CILab, McMaster University, 92 Bowman St., Hamilton, ON, Canada, L8S 2T6
| | - J Uher
- University of Greenwich, Old Royal Naval College, Park Row, London SE10 9LS, UK
- London School of Economics, Houghton Street, London WC2A 2AE, UK
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20
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Trofimova I. Functionality versus dimensionality in psychological taxonomies, and a puzzle of emotional valence. Philos Trans R Soc Lond B Biol Sci 2018; 373:20170167. [PMID: 29483351 PMCID: PMC5832691 DOI: 10.1098/rstb.2017.0167] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2017] [Indexed: 12/16/2022] Open
Abstract
This paper applies evolutionary and functional constructivism approaches to the discussion of psychological taxonomies, as implemented in the neurochemical model Functional Ensemble of Temperament (FET). FET asserts that neurochemical systems developed in evolution to regulate functional-dynamical aspects of construction of actions: orientation, selection (integration), energetic maintenance, and management of automatic behavioural elements. As an example, the paper reviews the neurochemical mechanisms of interlocking between emotional dispositions and performance capacities. Research shows that there are no specific neurophysiological systems of positive or negative affect, and that emotional valence is rather an integrative product of many brain systems during estimations of needs and the capacities required to satisfy these needs. The interlocking between emotional valence and functional aspects of performance appears to be only partial since all monoamine and opioid receptor systems play important roles in non-emotional aspects of behaviour, in addition to emotionality. This suggests that the Positive/Negative Affect framework for DSM/ICD classifications of mental disorders oversimplifies the structure of non-emotionality symptoms of these disorders. Contingent dynamical relationships between neurochemical systems cannot be represented by linear statistical models searching for independent dimensions (such as factor analysis); nevertheless, these relationships should be reflected in psychological and psychiatric taxonomies.This article is part of the theme issue 'Diverse perspectives on diversity: multi-disciplinary approaches to taxonomies of individual differences'.
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Affiliation(s)
- Irina Trofimova
- CILab, Department of Psychiatry and Behavioral Neurosciences, McMaster University, 92 Bowman Street, Hamilton, Ontario, Canada L8S 2T6
- OISE, Department of Applied Psychology & Human Development, University of Toronto, Toronto, Ontario, Canada
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