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Funch Uhre V, Melissa Larsen K, Marc Herz D, Baaré W, Katrine Pagsberg A, Roman Siebner H. Inhibitory control in obsessive compulsive disorder: A systematic review and activation likelihood estimation meta-analysis of functional magnetic resonance imaging studies. Neuroimage Clin 2022; 36:103268. [PMID: 36451370 PMCID: PMC9723317 DOI: 10.1016/j.nicl.2022.103268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/02/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Patients with obsessive compulsive disorder (OCD) often show deficits in inhibitory control, which may underlie poor control over obsessions and compulsions. Several functional magnetic resonance imaging (fMRI) experiments utilizing a variety of tasks have investigated the neural correlates of inhibitory control in OCD. Evidence from existing meta-analyses suggests aberrant activation of regions in fronto-striatal circuits during inhibitory control. However, new fMRI articles have since been published, and a more rigorous methodology for neuroimaging meta-analyses is now available. OBJECTIVES First, to reevaluate the evidence for abnormal brain activation during performance of inhibitory control tasks in OCD while adhering to current best practices for meta-analyses, and second, to extend previous findings by separately assessing different subprocesses of inhibitory control. METHOD We systematically searched Web of Knowledge, ScienceDirect, Scopus, PubMed and the functional BrainMap database for fMRI articles that compared activation during performance of inhibitory control tasks in patients with OCD and healthy control (HC) subjects. Thirty-five experiments from 21 articles met our criteria for inclusion. We first performed activation-likelihood-estimation meta-analyses to elucidate brain areas in which case-control activation differences converged across articles and tasks. We then aimed to extend previous work by separately evaluating experiments requiring inhibition of a prepotent response without execution of an alternative response (i.e., response inhibition) and experiments requiring inhibition of a prepotent response and execution of an alternative response (i.e., cognitive inhibition). RESULTS The 35 experiments included a total of 394 patients and 410 controls. We did not find evidence of abnormal brain activation in OCD during inhibitory control when pooling data from all experiments. Analysis restricted to cognitive inhibition experiments showed abnormal activation of the dorsal anterior cingulate cortex (dACC; P = .04, cluster-level familywise error-corrected, cluster volume of 824 mm3). We did not have sufficient data to evaluate response inhibition experiments separately. CONCLUSION Findings of abnormal brain activation in OCD from different inhibitory control tasks do not appear to converge on the same brain regions, but the dACC may be implicated in abnormal cognitive inhibition. Our findings highlight a need for experiments that specifically target subprocesses of inhibitory control to achieve a more differentiated understanding of the neural correlates for impaired inhibitory control in OCD.
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Affiliation(s)
- Valdemar Funch Uhre
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark,Department of Clinical Medicine, Faculty of Medical and Health Sciences, University of Copenhagen, Denmark,Child and Adolescent Mental Health Centre, Mental Health Services, Denmark,Corresponding author at: Danish Research Centre for Magnetic Resonance (DRCMR), section 714, Center for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital – Amager and Hvidovre, Kettegård Allé 30, 2650 Hvidovre, Denmark.
| | - Kit Melissa Larsen
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark,Child and Adolescent Mental Health Centre, Mental Health Services, Denmark
| | - Damian Marc Herz
- MRC Brain Network Dynamics Unit, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, UK,Department of Neurology, Section Movement Disorders and Neurostimulation, University Hospital, Johannes Gutenberg University, Mainz, Germany
| | - William Baaré
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
| | - Anne Katrine Pagsberg
- Department of Clinical Medicine, Faculty of Medical and Health Sciences, University of Copenhagen, Denmark,Child and Adolescent Mental Health Centre, Mental Health Services, Denmark
| | - Hartwig Roman Siebner
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark,Department of Clinical Medicine, Faculty of Medical and Health Sciences, University of Copenhagen, Denmark,Department of Neurology, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark
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Nyberg L, Magnussen F, Lundquist A, Baaré W, Bartrés-Faz D, Bertram L, Boraxbekk CJ, Brandmaier AM, Drevon CA, Ebmeier K, Ghisletta P, Henson RN, Junqué C, Kievit R, Kleemeyer M, Knights E, Kühn S, Lindenberger U, Penninx BWJH, Pudas S, Sørensen Ø, Vaqué-Alcázar L, Walhovd KB, Fjell AM. Educational attainment does not influence brain aging. Proc Natl Acad Sci U S A 2021; 118:e2101644118. [PMID: 33903255 PMCID: PMC8106299 DOI: 10.1073/pnas.2101644118] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Education has been related to various advantageous lifetime outcomes. Here, using longitudinal structural MRI data (4,422 observations), we tested the influential hypothesis that higher education translates into slower rates of brain aging. Cross-sectionally, education was modestly associated with regional cortical volume. However, despite marked mean atrophy in the cortex and hippocampus, education did not influence rates of change. The results were replicated across two independent samples. Our findings challenge the view that higher education slows brain aging.
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Affiliation(s)
- Lars Nyberg
- Department of Radiation Sciences, Radiology, Umeå University, 901 87 Umeå, Sweden;
- Department of Integrative Medical Biology, Umeå University, 901 87 Umeå, Sweden
- Umeå Center for Functional Brain Imaging, Umeå University, 901 87 Umeå, Sweden
- Center for Lifespan Changes in Brain and Cognition, University of Oslo, 0317 Oslo, Norway
| | - Fredrik Magnussen
- Center for Lifespan Changes in Brain and Cognition, University of Oslo, 0317 Oslo, Norway
| | - Anders Lundquist
- Umeå Center for Functional Brain Imaging, Umeå University, 901 87 Umeå, Sweden
| | - William Baaré
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital, Amager and Hvidovre, 2650 Hvidovre, Denmark
| | - David Bartrés-Faz
- Department of Medicine, Faculty of Medicine and Health Sciences and Neurosciences Institute, University of Barcelona, 08014 Barcelona, Spain
| | - Lars Bertram
- Center for Lifespan Changes in Brain and Cognition, University of Oslo, 0317 Oslo, Norway
- Lübeck Interdisciplinary Platform for Genome Analytics, University of Lübeck, 23538 Lübeck, Germany
| | - C J Boraxbekk
- Department of Radiation Sciences, Radiology, Umeå University, 901 87 Umeå, Sweden
- Umeå Center for Functional Brain Imaging, Umeå University, 901 87 Umeå, Sweden
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital, Amager and Hvidovre, 2650 Hvidovre, Denmark
- Institute of Sports Medicine Copenhagen, Copenhagen University Hospital, Bispebjerg, 2400 Copenhagen, Denmark
| | - Andreas M Brandmaier
- Center for Lifespan Psychology, Max Planck Institute for Human Development, D-14195 Berlin, Germany
- Max Planck University College London Centre for Computational Psychiatry and Ageing Research, D-14195 Berlin, Germany, and London WC1B 5EH, United Kingdom
| | - Christian A Drevon
- Vitas AS, Research Park, 0349 Oslo, Norway
- Department of Nutrition, Institute of Basic Medical Sciences, Faculty of Medicine, Medicine/University of Oslo, 0317 Oslo, Norway
| | - Klaus Ebmeier
- Warneford Hospital, University of Oxford, Oxford OX3 7JX, United Kingdom
| | - Paolo Ghisletta
- Faculté de Psychologie et des Sciences de l'Education, Université de Genève, 1205 Geneva, Switzerland
| | - Richard N Henson
- Medical Research Council Cognition and Brain Sciences Unit, Department of Psychiatry, University of Cambridge, Cambridge CB2 7EF, United Kingdom
| | - Carme Junqué
- Department of Medicine, Faculty of Medicine and Health Sciences and Neurosciences Institute, University of Barcelona, 08014 Barcelona, Spain
| | - Rogier Kievit
- Medical Research Council Cognition and Brain Sciences Unit, Department of Psychiatry, University of Cambridge, Cambridge CB2 7EF, United Kingdom
- Cognitive Neuroscience Department, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, 6500 GL Nijmegen, The Netherlands
| | - Maike Kleemeyer
- Center for Lifespan Psychology, Max Planck Institute for Human Development, D-14195 Berlin, Germany
| | - Ethan Knights
- Medical Research Council Cognition and Brain Sciences Unit, Department of Psychiatry, University of Cambridge, Cambridge CB2 7EF, United Kingdom
| | - Simone Kühn
- Center for Lifespan Psychology, Max Planck Institute for Human Development, D-14195 Berlin, Germany
- Department of Psychiatry and Psychotherapy, University Clinic Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Ulman Lindenberger
- Center for Lifespan Psychology, Max Planck Institute for Human Development, D-14195 Berlin, Germany
- Max Planck University College London Centre for Computational Psychiatry and Ageing Research, D-14195 Berlin, Germany, and London WC1B 5EH, United Kingdom
| | - Brenda W J H Penninx
- Department of Psychiatry, Amsterdam University Medical Center, Vrije Universiteit, 1081 HJ Amsterdam, The Netherlands
| | - Sara Pudas
- Department of Integrative Medical Biology, Umeå University, 901 87 Umeå, Sweden
- Umeå Center for Functional Brain Imaging, Umeå University, 901 87 Umeå, Sweden
| | - Øystein Sørensen
- Center for Lifespan Changes in Brain and Cognition, University of Oslo, 0317 Oslo, Norway
| | - Lídia Vaqué-Alcázar
- Department of Medicine, Faculty of Medicine and Health Sciences and Neurosciences Institute, University of Barcelona, 08014 Barcelona, Spain
| | - Kristine B Walhovd
- Center for Lifespan Changes in Brain and Cognition, University of Oslo, 0317 Oslo, Norway
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, 0372 Oslo, Norway
| | - Anders M Fjell
- Center for Lifespan Changes in Brain and Cognition, University of Oslo, 0317 Oslo, Norway;
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, 0372 Oslo, Norway
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Macoveanu J, Baaré W, Madsen KH, Kessing LV, Siebner HR, Vinberg M. Risk for affective disorders is associated with greater prefrontal gray matter volumes: A prospective longitudinal study. Neuroimage Clin 2017; 17:786-793. [PMID: 29527486 PMCID: PMC5842662 DOI: 10.1016/j.nicl.2017.12.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 10/12/2017] [Accepted: 12/06/2017] [Indexed: 12/27/2022]
Abstract
Background Major depression and bipolar disorders aggregates in families and are linked with a wide range of neurobiological abnormalities including cortical gray matter (GM) alterations. Prospective studies of individuals at familial risk may expose the neural mechanisms underlying risk transmission. Methods We used voxel based morphometry to investigate changes in regional GM brain volume, over a seven-year period, in 37 initially healthy individuals having a mono- or di-zygotic twin diagnosed with major depression or bipolar disorder (high-risk group; mean age 41.6 yrs.) as compared to 36 individuals with no history of affective disorders in the index twin and first-degree relatives (low-risk group; mean age 38.5 yrs.). Results Groups did not differ in regional GM volume changes over time. However, independent of time, high-risk twins had significantly greater GM volumes in bilateral dorsal anterior cingulate, inferior frontal gyrus and temporoparietal regions as compared to low-risk twins. Further, individuals who developed an affective disorder at follow-up (n = 12), had relatively the largest GM volumes, both at baseline and follow-up, in the right dorsal anterior cingulate cortex and right inferior frontal cortex compared to high- and low-risk twins who remained well at follow-up. Conclusion This pattern of apparently stable grater regional GM volume may constitute a neural marker of an increased risk for developing an affective disorder in individuals at familial risk.
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Affiliation(s)
- Julian Macoveanu
- Psychiatric Centre Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark; Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
| | - William Baaré
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Kristoffer H Madsen
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark; Section for Cognitive Systems, Department of Applied Mathematics and Computer Science, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Lars Vedel Kessing
- Psychiatric Centre Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Hartwig Roman Siebner
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark; Department of Neurology, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark
| | - Maj Vinberg
- Psychiatric Centre Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
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Macoveanu J, Vinberg M, Madsen K, Kessing LV, Siebner HR, Baaré W. Unaffected twins discordant for affective disorders show changes in anterior callosal white matter microstructure. Acta Psychiatr Scand 2016; 134:441-451. [PMID: 27604681 DOI: 10.1111/acps.12638] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/11/2016] [Indexed: 12/23/2022]
Abstract
OBJECTIVE The neurobiological mechanisms mediating an increased risk to develop affective disorders remain poorly understood. In a group of individuals with a family history of major depressive (MDD) or bipolar disorder (BD), we investigated the microstructural properties of white matter fiber tracts, that is, cingulum bundle, uncinate fasciculus, anterior limb of the internal capsule, and corpus callosum, that facilitate the communication between brain regions implicated in affective disorders. METHOD Eighty-nine healthy mono- or dizygotic twins with a co-twin diagnosed with MDD or BD (high-risk) and 57 healthy twins with a co-twin with no familial history of affective disorders (low-risk) were included in a diffusion tensor imaging study. RESULT The high-risk group showed decreased fractional anisotropy (FA), a measure of water diffusion directionality, and increased radial diffusivity in the anterior region of corpus callosum compared to the low-risk group. This abnormality was not associated with zygosity or type of depressive disorder of co-twin. CONCLUSION The observed decreased anterior callosal fiber FA in the high-risk group may be indicative of a compromised interhemispheric communication between left and right frontal regions critically involved in mood regulation. Reduced anterior callosal FA may act as a vulnerability marker for affective disorders in individuals at familial risk.
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Affiliation(s)
- J Macoveanu
- Psychiatric Centre Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark. .,Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
| | - M Vinberg
- Psychiatric Centre Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - K Madsen
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - L V Kessing
- Psychiatric Centre Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - H R Siebner
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.,Department of Neurology, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark
| | - W Baaré
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
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Mc Mahon B, Andersen SB, Madsen MK, Hjordt LV, Hageman I, Dam H, Svarer C, da Cunha-Bang S, Baaré W, Madsen J, Hasholt L, Holst K, Frokjaer VG, Knudsen GM. Seasonal difference in brain serotonin transporter binding predicts symptom severity in patients with seasonal affective disorder. Brain 2016; 139:1605-14. [DOI: 10.1093/brain/aww043] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 01/28/2016] [Indexed: 11/14/2022] Open
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Frokjaer VG, Erritzoe D, Holst KK, Jensen PS, Rasmussen PM, Fisher PM, Baaré W, Madsen KS, Madsen J, Svarer C, Knudsen GM. Prefrontal serotonin transporter availability is positively associated with the cortisol awakening response. Eur Neuropsychopharmacol 2013; 23:285-94. [PMID: 22732516 DOI: 10.1016/j.euroneuro.2012.05.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 04/10/2012] [Accepted: 05/29/2012] [Indexed: 01/23/2023]
Abstract
UNLABELLED Stress sensitivity and serotonergic neurotransmission interact, e.g. individuals carrying the low-expressing variants (S and LG) of the 5-HTTLPR promoter polymorphism of the serotonin transporter (SERT) gene are at higher risk for developing mood disorders when exposed to severe stress and display higher cortisol responses when exposed to psychosocial stressors relative to high expressing 5-HTTLPR variants. However, it is not clear how the relation between SERT and cortisol output is reflected in the adult brain. We investigated the relation between cortisol response to awakening (CAR) and SERT binding in brain regions considered relevant to modify the cortisol awakening response. METHODS thirty-two healthy volunteers underwent in vivo SERT imaging with [(11)C]DASB-Positron Emission Tomography (PET), genotyping, and performed home-sampling of saliva to assess CAR. RESULTS CAR, defined as the area under curve with respect to increase from baseline, was positively coupled to prefrontal SERT binding (p=0.02), independent of adjustment for 5-HTTLPR genotype. Although S- and LG-allele carriers tended to show a larger CAR (p=0.07) than LA homozygous, 5-HTTLPR genotype did not modify the coupling between CAR and prefrontal SERT binding as tested by an interaction analysis (genotype×CAR). CONCLUSION prefrontal SERT binding is positively associated with cortisol response to awakening. We speculate that in mentally healthy individuals prefrontal serotonergic neurotransmission may exert an inhibitory control on the cortisol awakening response.
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Affiliation(s)
- Vibe Gedsoe Frokjaer
- Center for Integrated Molecular Brain Imaging, DK-2100 Copenhagen, Denmark; Neurobiology Research Unit, DK-2100 Copenhagen, Denmark.
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Hammer TB, Oranje B, Skimminge A, Aggernæs B, Ebdrup BH, Glenthøj B, Baaré W. Structural brain correlates of sensorimotor gating in antipsychotic-naive men with first-episode schizophrenia. J Psychiatry Neurosci 2013; 38:34-42. [PMID: 22687247 PMCID: PMC3529217 DOI: 10.1503/jpn.110129] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Prepulse inhibition (PPI) of the startle reflex is modulated by a complex neural network. Prepulse inhibition impairments are found at all stages of schizophrenia. Previous magnetic resonance imaging (MRI) studies suggest that brain correlates of PPI differ between patients with schizophrenia and healthy controls; however, these studies included only patients with chronic illness and medicated patients. Our aim was to examine the structural brain correlates of PPI in antipsychotic-naive patients with first-episode schizophrenia. METHODS We performed acoustic PPI assessment and structural MRI (1.5 and 3 T) in men with first-episode schizophrenia and age-matched controls. Voxel-based morphometry was used to investigate the association between PPI and grey matter volumes. RESULTS We included 27 patients and 38 controls in the study. Patients had lower PPI than controls. The brain areas in which PPI and grey matter volume correlated did not differ between the groups. Independent of group, PPI was significantly and positively associated with regional grey matter volume in the right superior parietal cortex. Prepulse inhibition and grey matter volume associations were also observed in the left rostral dorsal premotor cortex, the right presupplementary motor area and the anterior medial superior frontal gyrus bilaterally. Follow-up analyses suggested that the rostral dorsal premotor cortex and presupplementary motor area correlations were driven predominantly by the controls. LIMITATIONS We used 2 different MRI scanners, which might have limited our ability to find subcortical associations since interscanner consistency is low for subcortical regions. CONCLUSION The superior parietal cortex seems to be involved in the regulation of PPI in controls and antipsychotic-naive men with first-episode schizophrenia. Our observation that PPI deficits in schizophrenia may be related to the rostral dorsal premotor cortex and presupplementary motor area, brain areas involved in maintaining relevant sensory information and voluntary inhibition, warrants further study.
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Affiliation(s)
- Trine Bjørg Hammer
- Center for Neuropsychiatric Schizophrenia Research, Copenhagen University Hospital, Glostrup, Denmark.
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Haahr ME, Fisher P, Holst K, Madsen K, Jensen CG, Marner L, Lehel S, Baaré W, Knudsen G, Hasselbalch S. The 5-HT4 receptor levels in hippocampus correlates inversely with memory test performance in humans. Hum Brain Mapp 2012; 34:3066-74. [PMID: 22736538 DOI: 10.1002/hbm.22123] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Revised: 04/10/2012] [Accepted: 04/20/2012] [Indexed: 11/07/2022] Open
Abstract
The cerebral serotonin (5-HT) system is involved in cognitive functions such as memory and learning and animal studies have repeatedly shown that stimulation of the 5-HT type 4 receptor (5-HT4 R) facilitates memory and learning and further that the 5-HT4 R modulates cellular memory processes in hippocampus. However, any associations between memory functions and the expression of the 5-HT4 R in the human hippocampus have not been investigated. Using positron emission tomography with the tracer [(11) C]SB207145 and Reys Auditory Verbal Learning Test we aimed to examine the individual variation of the 5-HT4R binding in hippocampus in relation to memory acquisition and consolidation in healthy young volunteers. We found significant, negative associations between the immediate recall scores and left and right hippocampal BPND , (p = 0.009 and p = 0.010 respectively) and between the right hippocampal BPND and delayed recall (p = 0.014). These findings provide evidence that the 5-HT4 R is associated with memory functions in the human hippocampus and potentially pharmacological stimulation of the receptor may improve episodic memory.
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Affiliation(s)
- Mette Ewers Haahr
- Neurobiology Research Unit and Center of Integrated Molecular Brain Imaging, University Hospital Rigshospitalet, 24 Juliane Maries Vej, 2100 Copenhagen, Denmark; Danish Research Centre for Magnetic Resonance, University Hospital Hvidovre, 30 Kettegård Allé, 2650 Hvidovre, Denmark
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Marner L, Knudsen GM, Madsen K, Holm S, Baaré W, Hasselbalch SG. The Reduction of Baseline Serotonin 2A Receptors in Mild Cognitive Impairment is Stable at Two-year Follow-up. ACTA ACUST UNITED AC 2011; 23:453-9. [DOI: 10.3233/jad-2010-100903] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Lisbeth Marner
- Neurobiology Research Unit, The Neuroscience Center, University Hospital Rigshospitalet, Copenhagen, Denmark
- Center for Integrated Molecular Imaging, The Neuroscience Center, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Gitte M. Knudsen
- Neurobiology Research Unit, The Neuroscience Center, University Hospital Rigshospitalet, Copenhagen, Denmark
- Center for Integrated Molecular Imaging, The Neuroscience Center, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Karine Madsen
- Neurobiology Research Unit, The Neuroscience Center, University Hospital Rigshospitalet, Copenhagen, Denmark
- Center for Integrated Molecular Imaging, The Neuroscience Center, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Søren Holm
- PET and Cyclotron Unit, Department of Clinical Physiology and Nuclear Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - William Baaré
- Center for Integrated Molecular Imaging, The Neuroscience Center, University Hospital Rigshospitalet, Copenhagen, Denmark
- Danish Research Center for Magnetic Resonance, University Hospital Hvidovre, Copenhagen, Denmark
| | - Steen G. Hasselbalch
- Neurobiology Research Unit, The Neuroscience Center, University Hospital Rigshospitalet, Copenhagen, Denmark
- Memory Disorders Research Unit, The Neuroscience Center, University Hospital Rigshospitalet, Copenhagen, Denmark
- Center for Integrated Molecular Imaging, The Neuroscience Center, University Hospital Rigshospitalet, Copenhagen, Denmark
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Madsen K, Erritzoe D, Mortensen EL, Gade A, Madsen J, Baaré W, Knudsen GM, Hasselbalch SG. Cognitive function is related to fronto-striatal serotonin transporter levels--a brain PET study in young healthy subjects. Psychopharmacology (Berl) 2011; 213:573-81. [PMID: 20623110 DOI: 10.1007/s00213-010-1926-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Accepted: 06/17/2010] [Indexed: 11/26/2022]
Abstract
RATIONALE Pharmacological manipulation of serotonergic neurotransmission in healthy volunteers impacts on cognitive test performance. Specifically, markers of serotonin function are associated with attention and executive functioning, long-term memory, and general cognitive ability. The serotonin transporter (SERT) protein is a key regulator in the serotonin system. We hypothesized that higher performance on tests sensitive to serotonin would be associated with higher SERT levels in specific fronto-striatal brain regions. METHODS Thirty-two healthy subjects (25 males, mean age 26.0 years, range 19-37) underwent positron emission tomography using the SERT ligand [(11)C]DASB. Subjects underwent the following tests: Stroop Color Word Test, Trail Making Test B, Rey's Auditory Verbal Learning Test and Complex Figure Test, logical reasoning subtest from Intelligenz-Struktur-Test 2000 R, and a Danish version of National Adult Reading Test. RESULTS We found positive associations between performance on the Stroop Color Word Test and right-sided dorsolateral prefrontal SERT binding (R(2) = 0.12, p = 0.048). Furthermore, scores of logical reasoning (correlating with IQ) and educational level associated positively with SERT binding in the caudate, most prominent on the left side (logical reasoning: R(2) = 0.34, p = 0.0026 (left), R(2) = 0.2, p = 0.022 (right), educational level: R(2) = 0.19, p = 0.012 (left), R(2) = 0.15, p = 0.027 (right)). Scores of logical reasoning also associated with left-sided ventrolateral prefrontal cortex (R(2) = 0.24, p = 0.014). There were no significant associations between SERT binding and tests of long-term episodic memory. CONCLUSIONS The results imply that in healthy subjects, high SERT binding in fronto-striatal regions is associated with better performance on tasks involving executive function and logical reasoning.
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Affiliation(s)
- Karine Madsen
- The Neuroscience Centre, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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11
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Klein AB, Trajkovska V, Erritzoe D, Haugbol S, Madsen J, Baaré W, Aznar S, Knudsen GM. Cerebral 5-HT2A receptor and serotonin transporter binding in humans are not affected by the val66met BDNF polymorphism status or blood BDNF levels. J Cereb Blood Flow Metab 2010; 30:e1-7. [PMID: 20736957 PMCID: PMC3023937 DOI: 10.1038/jcbfm.2010.114] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Recent studies have proposed an interrelation between the brain-derived neurotrophic factor (BDNF) val66met polymorphism and the serotonin system. In this study, we investigated whether the BDNF val66met polymorphism or blood BDNF levels are associated with cerebral 5-hydroxytryptamine 2A (5-HT(2A)) receptor or serotonin transporter (SERT) binding in healthy subjects. No statistically significant differences in 5-HT(2A) receptor or SERT binding were found between the val/val and met carriers, nor were blood BDNF values associated with SERT binding or 5-HT(2A) receptor binding. In conclusion, val66met BDNF polymorphism status is not associated with changes in the serotonergic system. Moreover, BDNF levels in blood do not correlate with either 5-HT(2A) or SERT binding.
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Affiliation(s)
- Anders Bue Klein
- Neurobiology Research Unit, The Neuroscience Center, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
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Frokjaer VG, Erritzoe D, Jensen P, Madsen J, Baaré W, Knudsen GM. Cortisol awakening response and cerebral serotonin transporter binding. Neuroimage 2010. [DOI: 10.1016/j.neuroimage.2010.04.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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13
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Haahr M, Madsen K, Marner L, Gade A, Mortensen E, Zornhagen G, Lehel S, Baaré W, Knudsen G, Hasselbalch S. 5-HT4 receptor binding in hippocampus or prefrontal cortex is not associated with long-term memory test performance. Neuroimage 2010. [DOI: 10.1016/j.neuroimage.2010.04.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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14
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Frokjaer VG, Vinberg M, Erritzoe D, Baaré W, Holst KK, Mortensen EL, Arfan H, Madsen J, Jernigan TL, Kessing LV, Knudsen GM. Familial risk for mood disorder and the personality risk factor, neuroticism, interact in their association with frontolimbic serotonin 2A receptor binding. Neuropsychopharmacology 2010; 35:1129-37. [PMID: 20043006 PMCID: PMC3055406 DOI: 10.1038/npp.2009.218] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Life stress is a robust risk factor for later development of mood disorders, particularly for individuals at familial risk. Likewise, scoring high on the personality trait neuroticism is associated with an increased risk for mood disorders. Neuroticism partly reflects stress vulnerability and is positively correlated to frontolimbic serotonin 2A (5-HT(2A)) receptor binding. Here, we investigate whether neuroticism interacts with familial risk in relation to frontolimbic 5-HT(2A) receptor binding. Twenty-one healthy twins with a co-twin history of mood disorder and 16 healthy twins without a co-twin history of mood disorder were included. They answered self-report personality questionnaires and underwent [(18)F]altanserin positron emission tomography. We found a significant interaction between neuroticism and familial risk in predicting the frontolimbic 5-HT(2A) receptor binding (p=0.026) in an analysis adjusting for age and body mass index. Within the high-risk group only, neuroticism and frontolimbic 5-HT(2A) receptor binding was positively associated (p=0.0037). In conclusion, our data indicate that familial risk and neuroticism interact in their relation to frontolimbic 5-HT(2A) receptor binding. These findings point at a plausible neurobiological link between genetic and personality risk factors and vulnerability to developing mood disorders. It contributes to our understanding of why some people at high risk develop mood disorders while others do not. We speculate that an increased stress reactivity in individuals at high familial risk for mood disorders might enhance the effect of neuroticism in shaping the impact of potential environmental stress and thereby influence serotonergic neurotransmission.
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Affiliation(s)
- Vibe G Frokjaer
- Neurobiology Research Unit and Center for Integrated Molecular Brain Imaging, Denmark.
| | - Maj Vinberg
- Department of Psychiatry, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - David Erritzoe
- Neurobiology Research Unit and Center for Integrated Molecular Brain Imaging, Denmark
| | - William Baaré
- Neurobiology Research Unit and Center for Integrated Molecular Brain Imaging, Denmark,Danish Research Centre for Magnetic Resonance, Hvidovre University Hospital, Denmark
| | | | | | - Haroon Arfan
- Neurobiology Research Unit and Center for Integrated Molecular Brain Imaging, Denmark
| | - Jacob Madsen
- PET and Cyclotron Unit, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Terry L Jernigan
- Neurobiology Research Unit and Center for Integrated Molecular Brain Imaging, Denmark,Danish Research Centre for Magnetic Resonance, Hvidovre University Hospital, Denmark,Department of Psychiatry, University of California, Laboratory of Cognitive Imaging, San Diego, CA, USA
| | - Lars Vedel Kessing
- Department of Psychiatry, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - Gitte Moos Knudsen
- Neurobiology Research Unit and Center for Integrated Molecular Brain Imaging, Denmark
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Ebdrup BH, Glenthøj B, Rasmussen H, Aggernaes B, Langkilde AR, Paulson OB, Lublin H, Skimminge A, Baaré W. Hippocampal and caudate volume reductions in antipsychotic-naive first-episode schizophrenia. J Psychiatry Neurosci 2010; 35:95-104. [PMID: 20184807 PMCID: PMC2834791 DOI: 10.1503/jpn.090049] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Enlarged ventricles and reduced hippocampal volume are consistently found in patients with first-episode schizophrenia. Studies investigating brain structure in antipsychotic-naive patients have generally focused on the striatum. In this study, we examined whether ventricular enlargement and hippocampal and caudate volume reductions are morphological traits of antipsychotic-naive first-episode schizophrenia. METHODS We obtained high-resolution 3-dimensional T1-weighted magnetic resonance imaging scans for 38 antipsychotic-naive first-episode schizophrenia patients and 43 matched healthy controls by use of a 3-T scanner. We warped the brain images to each other by use of a high-dimensional intersubject registration algorithm. We performed voxel-wise group comparisons with permutation tests. We performed small volume correction for the hippocampus, caudate and ventricles by use of a false discovery rate correction (p < 0.05) to control for multiple comparisons. We derived and analyzed estimates of brain structure volumes. We grouped patients as those with (n = 9) or without (n = 29) any lifetime substance abuse to examine the possible effects of substance abuse. RESULTS We found that hippocampal and caudate volumes were decreased in patients with first-episode schizophrenia. We found no ventricular enlargement, differences in global volume or significant associations between tissue volume and duration of untreated illness or psychopathology. The hippocampal volume reductions appeared to be influenced by a history of substance abuse. Exploratory analyses indicated reduced volume of the nucleus accumbens in patients with first-episode schizophrenia. LIMITATIONS This study was not a priori designed to test for differences between schizophrenia patients with or without lifetime substance abuse, and this subgroup was small. CONCLUSION Reductions in hippocampal and caudate volume may constitute morphological traits in antipsychotic-naive first-episode schizophrenia patients. However, the clinical implications of these findings are unclear. Moreover, past substance abuse may accentuate hippocampal volume reduction. Magnetic resonance imaging studies addressing the potential effects of substance abuse in antipsychotic-naive first-episode schizophrenia patients are warranted.
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Affiliation(s)
- Bjørn H. Ebdrup
- Correspondence to: Dr. B.H. Ebdrup, Center for Neuropsychiatric Schizophrenia Research, Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research, Psychiatric Center Glostrup, University Hospital Glostrup, DK-2600 Glostrup, Denmark; fax 45 4323 4653;
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16
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Rasmussen H, Erritzoe D, Andersen R, Ebdrup BH, Aggernaes B, Oranje B, Kalbitzer J, Madsen J, Pinborg LH, Baaré W, Svarer C, Lublin H, Knudsen GM, Glenthoj B. Decreased Frontal Serotonin2A Receptor Binding in Antipsychotic-Naive Patients With First-Episode Schizophrenia. ACTA ACUST UNITED AC 2010; 67:9-16. [DOI: 10.1001/archgenpsychiatry.2009.176] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Ramsøy TZ, Liptrot MG, Skimminge A, Lund TE, Sidaros K, Christensen MS, Baaré W, Paulson OB, Jernigan TL. Regional activation of the human medial temporal lobe during intentional encoding of objects and positions. Neuroimage 2009; 47:1863-72. [DOI: 10.1016/j.neuroimage.2009.03.082] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2008] [Revised: 03/12/2009] [Accepted: 03/31/2009] [Indexed: 10/20/2022] Open
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Baladi Nejad A, Ebdrup B, Glenthøj B, Baaré W. Brain Hyperactivity in Drug-Naïve, First-Episode Schizophrenia Patients with Increasing Working Memory Load: Activation and Deactivation Anomalies. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)71654-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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19
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Hansen M, Madsen K, Baaré W, Skimminge A, Ejersbo L, Gerlach C, Åkeson P, Paulson O, Jernigan T. Verbal fluency performance is associated with white matter microstructure in a left hemisphere network in children. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70671-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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20
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Frokjaer VG, Vinberg M, Erritzoe D, Svarer C, Baaré W, Budtz-Joergensen E, Madsen K, Madsen J, Kessing LV, Knudsen GM. High familial risk for mood disorder is associated with low dorsolateral prefrontal cortex serotonin transporter binding. Neuroimage 2009; 46:360-6. [DOI: 10.1016/j.neuroimage.2009.02.008] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2008] [Revised: 01/22/2009] [Accepted: 02/05/2009] [Indexed: 11/26/2022] Open
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Marner L, Knudsen GM, Haugbøl S, Holm S, Baaré W, Hasselbalch SG. Longitudinal assessment of cerebral 5-HT2A receptors in healthy elderly volunteers: an [18F]-altanserin PET study. Eur J Nucl Med Mol Imaging 2008; 36:287-93. [PMID: 18828013 DOI: 10.1007/s00259-008-0945-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2008] [Accepted: 08/23/2008] [Indexed: 11/30/2022]
Abstract
PURPOSE The serotonin 2A (5-HT(2A)) receptor is of interest in several psychiatric and neurological diseases. In the present study we investigated the longitudinal stability of 5-HT(2A) receptors and the stability of the quantification procedure in the elderly in order to be able to study elderly patients with neuropsychiatric diseases on a longitudinal basis. METHODS [(18)F]-Altanserin PET was used to quantify 5-HT(2A) receptors in 12 healthy elderly individuals at baseline and at 2 years in six volumes of interest. A bolus/infusion protocol was used to achieve the binding potential, BP(P). The reproducibility as assessed in terms of variability and the reliability as assessed in terms of intraclass correlation coefficient (ICC) were used to compare inter- and intraobserver stability and to evaluate the effects of increasing complexity of partial volume (PV) corrections. We also compared the stability of our measurements over 2 years with the stability of data from an earlier study with 2-week test-retest measurements. RESULTS BP(P) was unaltered at follow-up without the use of PV correction and when applying two-tissue PV correction, test-retest reproducibility was 12-15% and reliability 0.45-0.67 in the large bilateral regions such as the parietal, temporal, occipital and frontal cortices, while orbitofrontal and anterior cingulate cortical regions were less stable. The use of PV correction decreased the variability but also decreased the between-subject variation, thereby worsening the reliability. CONCLUSION In healthy elderly individuals, brain 5-HT(2A) receptor binding remains stable over 2 years, and acceptable reproducibility and reliability in larger regions and high intra- and interobserver stability allow the use of [(18)F]-altanserin in longitudinal studies of patients with neuropsychiatric disorders.
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Affiliation(s)
- Lisbeth Marner
- Neurobiology Research Unit, N9201, University Hospital Rigshospitalet, Blegdamsvej 9, DK-2100, Copenhagen O, Denmark.
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Erritzoe D, Rasmussen H, Kristiansen KT, Frokjaer VG, Haugbol S, Pinborg L, Baaré W, Svarer C, Madsen J, Lublin H, Knudsen GM, Glenthoj BY. Cortical and subcortical 5-HT2A receptor binding in neuroleptic-naive first-episode schizophrenic patients. Neuropsychopharmacology 2008; 33:2435-41. [PMID: 18288096 DOI: 10.1038/sj.npp.1301656] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The serotonin 5-HT(2A) receptor is suspected to be involved in a number of psychiatric disorders, including schizophrenia. In particular, atypical antipsychotics have antagonistic effects on the 5-HT(2A) receptors, supporting a specific role of the 5-HT(2A) receptor in the pathophysiology of this disease. The aim of this study is to investigate cortical and subcortical 5-HT(2A) binding in neuroleptic-naive schizophrenic patients. Fifteen neuroleptic-naive patients diagnosed with schizophrenia (age 27.5+/-4.5 years), 11 men and 4 women, and 15 healthy control subjects matched for age (28.5+/-5.7 years) and gender underwent a 40 min positron emission tomography (PET) study using the 5-HT(2A) antagonist, [(18)F]altanserin, as a radioligand. PET images were co-registered to 3 T magnetic resonance images (MRIs) for each individual subject, and ROIs were applied automatically onto the individual MRIs and PET images. The cerebellum was used as a reference region. The binding potential of specific tracer binding (BP(p)) was used as the outcome measure. No significant difference was seen in cortical receptor distribution between patients and controls. An increase in 5-HT(2A) receptor binding in the caudate nucleus was detected in the group of schizophrenic patients (0.7+/-0.1) when compared to the healthy controls (0.5+/-0.3) (p=0.02). Our results confirm other in vivo findings of no difference in cortical 5-HT(2A) receptor binding between first-episode antipsychotic-naive schizophrenic patients and age- and gender-matched healthy control subjects. However, a preliminary finding of increased 5-HT(2A) binding in the caudate nucleus requires further investigation to explore the relation of subcortical and cortical 5-HT(2A) receptor binding.
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Affiliation(s)
- David Erritzoe
- Neurobiology Research Unit, Center for Integrated Molecular Brain Imaging, University Hospital Rigshospitalet, Copenhagen, Denmark.
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Marner L, Gillings N, Gunn R, Baaré W, Hasselbalch S, Knudsen G. Gender and cognitive performance: Correlations to 5-HT4 receptors in the human brain: A 11C-SB207145-PET study. Neuroimage 2008. [DOI: 10.1016/j.neuroimage.2008.04.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Glenthoj BY, Mackeprang T, Svarer C, Rasmussen H, Pinborg LH, Friberg L, Baaré W, Hemmingsen R, Videbaek C. Frontal dopamine D(2/3) receptor binding in drug-naive first-episode schizophrenic patients correlates with positive psychotic symptoms and gender. Biol Psychiatry 2006; 60:621-9. [PMID: 16580642 DOI: 10.1016/j.biopsych.2006.01.010] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2005] [Revised: 12/12/2005] [Accepted: 01/10/2006] [Indexed: 12/21/2022]
Abstract
BACKGROUND The aim of the study was to examine extrastriatal dopamine D(2/3) receptor binding and psychopathology in schizophrenic patients, and to relate binding potential (BP) values to psychopathology. METHODS Twenty-five drug-naive schizophrenic patients and 20 healthy controls were examined with single-photon emission computerized tomography (SPECT) using the D(2/3)-receptor ligand [123I]epidepride. RESULTS In the hitherto largest study on extrastriatal D(2/3) receptors we detected a significant correlation between frontal D(2/3) BP values and positive schizophrenic symptoms in the larger group of male schizophrenic patients, higher frontal BP values in male (n = 17) compared to female (n = 8) patients, and - in accordance with this - significantly fewer positive schizophrenic symptoms in the female patients. No significant differences in BP values were observed between patients and controls; the patients, however, had significantly higher BP in the right compared to the left thalamus, whereas no significant hemispheric imbalances were observed in the healthy subjects. CONCLUSIONS The present data are the first to confirm a significant correlation between frontal D(2/3) receptor BP values and positive symptoms in male schizophrenic patients. They are in agreement with the hypothesis that frontal D(2/3) receptor activity is significant for positive psychotic symptoms. Additionally, the data support a thalamic hemispheric imbalance in schizophrenia.
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Affiliation(s)
- Birte Y Glenthoj
- Center for Neuropsychiatric Schizophrenia Research, University of Copenhagen, Department of Psychiatry E, Bispebjerg Hospital, Copenhagen, Denmark.
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Rasmussen H, Mackeprang T, Svarer C, Baaré W, Pinborg L, Friberg L, Hemmingsen R, Videbaek C, Glenthoj B. Frontal dopamine D2 receptor binding in neuroleptic-naive first-episode schizophrenic patients correlates with positive psychotic symptoms and gender. Neuroimage 2006. [DOI: 10.1016/j.neuroimage.2006.04.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Marner L, Knudsen G, Madsen K, Haugbøl S, Vogel A, Holm S, Baaré W, Hasselbalch S. Longitudinal assessment of cerebral 5-HT2A receptors in normal volunteers. An [18F]-altanserin PET study. Neuroimage 2006. [DOI: 10.1016/j.neuroimage.2006.04.088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Pagsberg K, Baaré W, Mackeprang T, Christensen AM, Aarkrog T, Yding Glenthøj B, Hemmingsen R. Relationship between gray matter volume and clinical symtomatology in first-episode psychosis. Neuroimage 2001. [DOI: 10.1016/s1053-8119(01)92413-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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