1
|
Santiago AF, Kosilo M, Cogoni C, Diogo V, Jerónimo R, Prata D. Erratum to "Oxytocin modulates neural activity during early perceptual salience attribution"[ Psychoneuroendocrinology 161C (2024) 106950]. Psychoneuroendocrinology 2024; 163:106982. [PMID: 38336600 DOI: 10.1016/j.psyneuen.2024.106982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Affiliation(s)
- Andreia F Santiago
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal; William James Center for Research, ISPA - Instituto Universitário, Lisbon, Portugal
| | - Maciej Kosilo
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
| | - Carlotta Cogoni
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
| | - Vasco Diogo
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal; Instituto Universitário de Lisboa (Iscte-IUL), CIS_Iscte, Lisbon, Portugal
| | - Rita Jerónimo
- Instituto Universitário de Lisboa (Iscte-IUL), CIS_Iscte, Lisbon, Portugal
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal; Department of Old Age Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK.
| |
Collapse
|
2
|
Santiago AF, Kosilo M, Cogoni C, Diogo V, Jerónimo R, Prata D. Oxytocin modulates neural activity during early perceptual salience attribution. Psychoneuroendocrinology 2024; 161:106950. [PMID: 38194846 DOI: 10.1016/j.psyneuen.2023.106950] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 12/18/2023] [Accepted: 12/24/2023] [Indexed: 01/11/2024]
Abstract
Leading hypotheses of oxytocin's (OT) role in human cognition posit that it enhances salience attribution. However, whether OT exerts its effects predominantly in social (vs non-social) contexts remains debatable, and the time-course of intranasal OT's effects' on salience attribution processing is still unknown. We used the social Salience Attribution Task modified (sSAT) in a double-blind, placebo-controlled intranasal OT (inOT) administration, between-subjects design, with 54 male participants, to test existing theories of OT's role in cognition. Namely, we aimed to test whether inOT would differently affect salience attribution processing of social stimuli (expressing fearfulness) and non-social stimuli (fruits) made relevant via monetary reinforcement, and its neural processing time-course. During electroencephalography (EEG) recording, participants made speeded responses to emotional social (fearful faces) and non-emotional non-social (fruits) stimuli - which were matched for task-relevant motivational salience through their (color-dependent) probability of monetary reinforcement. InOT affected early (rather than late, P3b and LPP) EEG components, increasing N170 amplitude (p = .041) and P2b latency (p .001; albeit not of P1), regardless of stimuli's (emotional) socialness or reinforcement probability. Fear-related socialness affected salience attribution processing EEG (p .05) across time (N170, P2b and P3b), being later modulated by reinforcement probability (LPP). Our data suggest that OT's effects on neural activity during early perception, may exist irrespective of fear-related social- or reward-contexts. This partially supports the tri-phasic model of OT (which posits OT enhances salience attribution in an early perception stage regardless of socialness), and not the social salience nor the general approach-withdrawal hypotheses of OT, for early salience processing event-related potentials.
Collapse
Affiliation(s)
- Andreia F Santiago
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal; William James Center for Research, ISPA - Instituto Universitário, Lisbon, Portugal
| | - Maciej Kosilo
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
| | - Carlotta Cogoni
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
| | - Vasco Diogo
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal; Instituto Universitário de Lisboa (Iscte-IUL), CIS_Iscte, Lisbon, Portugal
| | - Rita Jerónimo
- Instituto Universitário de Lisboa (Iscte-IUL), CIS_Iscte, Lisbon, Portugal
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal; Department of Old Age Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK.
| |
Collapse
|
3
|
Cogoni C, Fiuza A, Hassanein L, Antunes M, Prata D. Computer anthropomorphisation in a socio-economic dilemma. Behav Res Methods 2024; 56:667-679. [PMID: 36781699 PMCID: PMC10830593 DOI: 10.3758/s13428-023-02071-y] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2023] [Indexed: 02/15/2023]
Abstract
In the study of human behaviour, non-social targets are often used as a control for human-to-human interactions. However, the concept of anthropomorphisation suggests that human-like qualities can be attributed to non-human objects. This can prove problematic in psychological experiments, as computers are often used as non-social targets. Here, we assessed the degree of computer anthropomorphisation in a sequential and iterated prisoner's dilemma. Participants (N = 41) faced three opponents in the prisoner's dilemma paradigm-a human, a computer, and a roulette-all represented by images presented at the commencement of each round. Cooperation choice frequencies and transition probabilities were estimated within subjects, in rounds against each opponent. We found that participants anthropomorphised the computer opponent to a high degree, while the same was not found for the roulette (i.e. no cooperation choice difference vs human opponents; p = .99). The difference in participants' behaviour towards the computer vs the roulette was further potentiated by the precedent roulette round, in terms of both cooperation choice (61%, p = .007) and cooperation probability after reciprocated defection (79%, p = .007). This suggests that there could be a considerable anthropomorphisation bias towards computer opponents in social games, even for those without a human-like appearance. Conversely, a roulette may be a preferable non-social control when the opponent's abilities are not explicit or familiar.
Collapse
Affiliation(s)
- Carlotta Cogoni
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande 016, 1749-016, Lisboa, Portugal.
| | - Angelica Fiuza
- Department of Health Science, Northeastern University, Boston, MA, USA
| | - Leslie Hassanein
- Department of Biological and Biomedical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Marília Antunes
- Centro de Estatística e Aplicações e Departamento de Estatística e Investigação Operacional, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande 016, 1749-016, Lisboa, Portugal.
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
| |
Collapse
|
4
|
Santos HC, Rodrigues A, Ferreira S, Martins JM, Baptista T, Gama Marques J, Kirkpatrick B, Prata D. The European Portuguese Version of the Brief Negative Symptom Scale. Psychopathology 2023; 57:76-80. [PMID: 37276842 DOI: 10.1159/000530705] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 04/12/2023] [Indexed: 06/07/2023]
Abstract
Negative symptoms reflect a currently much-untreated loss of normal functioning and are frequently found in psychotic disorders. We present the first translation of the Brief Negative Symptom Scale (BNSS) to European Portuguese and evaluate its validity in a sample of Portuguese male patients with a psychotic spectrum disorder. The Portuguese BNSS showed excellent internal consistency, high convergent validity (i.e., strong correlation with the PANSS negative factor), and high discriminant validity (i.e., a lack of association with the PANSS positive factor). In sum, the present European Portuguese BNSS has shown to be reliable, thus extending this instrument's clinical availability worldwide.
Collapse
Affiliation(s)
- Henrique Castro Santos
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
- Hospital Júlio de Matos, Centro Hospitalar Psiquiátrico de Lisboa, Lisboa, Portugal
| | - Alexandra Rodrigues
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
- Neuroradiology Department, Centro Hospitalar Universitário de Lisboa Central, Lisboa, Portugal
- Unidade de Neurorradiologia, Hospital Central Do Funchal, Funchal, Portugal
| | - Sara Ferreira
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
| | - João Malhadas Martins
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
| | - Tiago Baptista
- Departamento de Imagiologia, Hospital CUF Tejo, Lisboa, Portugal
| | - João Gama Marques
- Hospital Júlio de Matos, Centro Hospitalar Psiquiátrico de Lisboa, Lisboa, Portugal
- Clínica Universitária de Psiquiatria e Psicologia Médica, Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - Brian Kirkpatrick
- Psychiatric Research Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal
- Department of Old Age Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| |
Collapse
|
5
|
Cosme G, Arriaga P, Rosa PJ, Mehta MA, Prata D. Temporal profile of intranasal oxytocin in the human autonomic nervous system at rest: An electrocardiography and pupillometry study. J Psychopharmacol 2023:2698811231158233. [PMID: 36891949 DOI: 10.1177/02698811231158233] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
BACKGROUND Human social behavior is modulated by oxytocin (OT). Intranasal administration of OT (IN-OT) is a noninvasive route shown to elicit changes in the autonomic nervous system (ANS) activity; however, IN-OT's effect on the temporal profile of ANS activity at rest is yet to be described. AIMS We aimed to describe the temporal profile of IN-OT at six 10-min time windows from 15- to 100-min post-administration in 20 male participants at rest while continuously recording their pupillary in an eyes-open condition and cardiac activity in eyes-open and eyes-closed conditions. METHODS We used a double-blind, placebo-controlled, within-subjects design study where we extracted two proxies of parasympathetic nervous system (PNS) activity: high-frequency heart rate variability (HF-HRV) and pupillary unrest index (PUI); and a proxy of sympathetic nervous system activity: sample entropy of the pupillary unrest. RESULTS In the eyes-open condition, we found an effect of IN-OT on the proxies of PNS activity: decreased PUI in the three-time windows post-administration spanning 65-100 min, and as an exploratory finding, an increased HF-HRV in the 80-85 min time window. CONCLUSIONS We suggest there is a role of OT in PNS regulation that may be consistent with OT's currently theorized role in the facilitation of alertness and approach behavior.
Collapse
Affiliation(s)
- Gonçalo Cosme
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Patrícia Arriaga
- Instituto Universitário de Lisboa (ISCTE-IUL), CIS-IUL, Lisboa, Portugal
| | - Pedro J Rosa
- HEI-LAB: Human-Environment Interaction Lab/Universidade Lusófona de Humanidades e Tecnologias, Lisboa, Portugal.,ISMAT, Transdisciplinary Research Center (ISHIP), Portimão, Portugal
| | - Mitul A Mehta
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.,Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| |
Collapse
|
6
|
Kosilo M, Costa M, Nuttall HE, Ferreira H, Scott S, Menéres S, Pestana J, Jerónimo R, Prata D. Author Correction: The neural basis of authenticity recognition in laughter and crying. Sci Rep 2023; 13:1462. [PMID: 36702829 PMCID: PMC9879941 DOI: 10.1038/s41598-023-28360-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Affiliation(s)
- Maciej Kosilo
- grid.9983.b0000 0001 2181 4263Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande 016, 1749-016 Lisbon, Portugal
| | - Mónica Costa
- William James Center for Research, Lisbon, Portugal
| | - Helen E. Nuttall
- grid.9835.70000 0000 8190 6402Department of Psychology, Lancaster University, Lancaster, UK
| | - Hugo Ferreira
- grid.9983.b0000 0001 2181 4263Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande 016, 1749-016 Lisbon, Portugal
| | - Sophie Scott
- grid.83440.3b0000000121901201Institute of Cognitive Neuroscience, University College London, London, UK
| | - Sofia Menéres
- grid.410954.d0000 0001 2237 5901APPsyCI - Applied Psychology Research Center Capabilities & Inclusion, ISPA - Instituto Universitário, Lisbon, Portugal
| | - José Pestana
- grid.410954.d0000 0001 2237 5901Departamento de Biociências, ISPA – Instituto Universitário, Lisbon, Portugal
| | - Rita Jerónimo
- grid.45349.3f0000 0001 2220 8863Instituto Universitário de Lisboa (Iscte-IUL), CIS-Iscte, Lisbon, Portugal
| | - Diana Prata
- grid.9983.b0000 0001 2181 4263Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande 016, 1749-016 Lisbon, Portugal ,grid.45349.3f0000 0001 2220 8863Instituto Universitário de Lisboa (Iscte-IUL), CIS-Iscte, Lisbon, Portugal ,grid.13097.3c0000 0001 2322 6764Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, London, UK
| |
Collapse
|
7
|
Vouga Ribeiro N, Tavares V, Bramon E, Toulopoulou T, Valli I, Shergill S, Murray R, Prata D. Effects of psychosis-associated genetic markers on brain volumetry: a systematic review of replicated findings and an independent validation. Psychol Med 2022; 52:1-16. [PMID: 36168994 PMCID: PMC9811278 DOI: 10.1017/s0033291722002896] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 08/13/2022] [Accepted: 08/24/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND Given psychotic illnesses' high heritability and associations with brain structure, numerous neuroimaging-genetics findings have been reported in the last two decades. However, few findings have been replicated. In the present independent sample we aimed to replicate any psychosis-implicated SNPs (single nucleotide polymorphisms), which had previously shown at least two main effects on brain volume. METHODS A systematic review for SNPs showing a replicated effect on brain volume yielded 25 studies implicating seven SNPs in five genes. Their effect was then tested in 113 subjects with either schizophrenia, bipolar disorder, 'at risk mental state' or healthy state, for whole-brain and region-of-interest (ROI) associations with grey and white matter volume changes, using voxel-based morphometry. RESULTS We found FWER-corrected (Family-wise error rate) (i.e. statistically significant) associations of: (1) CACNA1C-rs769087-A with larger bilateral hippocampus and thalamus white matter, across the whole brain; and (2) CACNA1C-rs769087-A with larger superior frontal gyrus, as ROI. Higher replication concordance with existing literature was found, in decreasing order, for: (1) CACNA1C-rs769087-A, with larger dorsolateral-prefrontal/superior frontal gyrus and hippocampi (both with anatomical and directional concordance); (2) ZNF804A-rs11681373-A, with smaller angular gyrus grey matter and rectus gyri white matter (both with anatomical and directional concordance); and (3) BDNF-rs6265-T with superior frontal and middle cingulate gyri volume change (with anatomical and allelic concordance). CONCLUSIONS Most literature findings were not herein replicated. Nevertheless, high degree/likelihood of replication was found for two genome-wide association studies- and one candidate-implicated SNPs, supporting their involvement in psychosis and brain structure.
Collapse
Affiliation(s)
- Nuno Vouga Ribeiro
- Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Vânia Tavares
- Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Elvira Bramon
- Division of Psychiatry, University College London, London, UK
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’ College London, London, UK
- Institute of Cognitive Neuroscience, University College London, London, UK
| | - Timothea Toulopoulou
- Department of Psychology & National Magnetic Resonance Research Center (UMRAM), Aysel Sabuncu Brain Research Centre (ASBAM), Bilkent University, Ankara, Turkey
| | - Isabel Valli
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’ College London, London, UK
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Sukhi Shergill
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’ College London, London, UK
| | - Robin Murray
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King’ College London, London, UK
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- Department of Old Age Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| |
Collapse
|
8
|
Diogo VS, Ferreira HA, Prata D. Early diagnosis of Alzheimer's disease using machine learning: a multi-diagnostic, generalizable approach. Alzheimers Res Ther 2022; 14:107. [PMID: 35922851 PMCID: PMC9347083 DOI: 10.1186/s13195-022-01047-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 09/15/2021] [Accepted: 07/13/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND Early and accurate diagnosis of Alzheimer's disease (AD) is essential for disease management and therapeutic choices that can delay disease progression. Machine learning (ML) approaches have been extensively used in attempts to develop algorithms for reliable early diagnosis of AD, although clinical usefulness, interpretability, and generalizability of the classifiers across datasets and MRI protocols remain limited. METHODS We report a multi-diagnostic and generalizable approach for mild cognitive impairment (MCI) and AD diagnosis using structural MRI and ML. Classifiers were trained and tested using subjects from the AD Neuroimaging Initiative (ADNI) database (n = 570) and the Open Access Series of Imaging Studies (OASIS) project database (n = 531). Several classifiers are compared and combined using voting for a decision. Additionally, we report tests of generalizability across datasets and protocols (IR-SPGR and MPRAGE), the impact of using graph theory measures on diagnostic classification performance, the relative importance of different brain regions on classification for better interpretability, and an evaluation of the potential for clinical applicability of the classifier. RESULTS Our "healthy controls (HC) vs. AD" classifier trained and tested on the combination of ADNI and OASIS datasets obtained a balanced accuracy (BAC) of 90.6% and a Matthew's correlation coefficient (MCC) of 0.811. Our "HC vs. MCI vs. AD" classifier trained and tested on the ADNI dataset obtained a 62.1% BAC (33.3% being the by-chance cut-off) and 0.438 MCC. Hippocampal features were the strongest contributors to the classification decisions (approx. 25-45%), followed by temporal (approx. 13%), cingulate, and frontal regions (approx. 8-13% each), which is consistent with our current understanding of AD and its progression. Classifiers generalized well across both datasets and protocols. Finally, using graph theory measures did not improve classification performance. CONCLUSIONS In sum, we present a diagnostic tool for MCI and AD trained using baseline scans and a follow-up diagnosis regardless of progression, which is multi-diagnostic, generalizable across independent data sources and acquisition protocols, and with transparently reported performance. Rated as potentially clinically applicable, our tool may be clinically useful to inform diagnostic decisions in dementia, if successful in real-world prospective clinical trials.
Collapse
Affiliation(s)
- Vasco Sá Diogo
- grid.9983.b0000 0001 2181 4263Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Portugal ,grid.45349.3f0000 0001 2220 8863Iscte-Instituto Universitário de Lisboa, CIS-Iscte, Lisboa, Portugal
| | - Hugo Alexandre Ferreira
- grid.9983.b0000 0001 2181 4263Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Diana Prata
- grid.9983.b0000 0001 2181 4263Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Portugal ,grid.13097.3c0000 0001 2322 6764Department of Old Age Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | | |
Collapse
|
9
|
Zelenina M, Kosilo M, da Cruz J, Antunes M, Figueiredo P, Mehta MA, Prata D. Temporal Dynamics of Intranasal Oxytocin in Human Brain Electrophysiology. Cereb Cortex 2022; 32:3110-3126. [PMID: 34979544 PMCID: PMC9290557 DOI: 10.1093/cercor/bhab404] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/05/2021] [Accepted: 10/21/2021] [Indexed: 11/18/2022] Open
Abstract
Oxytocin (OT) is a key modulator of human social cognition, popular in behavioral neuroscience. To adequately design and interpret intranasal OT (IN-OT) research, it is crucial to know for how long it affects human brain function once administered. However, this has been mostly deduced from peripheral body fluids studies, or uncommonly used dosages. We aimed to characterize IN-OT’s effects on human brain function using resting-state EEG microstates across a typical experimental session duration. Nineteen healthy males participated in a double-blind, placebo-controlled, within-subject, cross-over design of 24 IU of IN-OT in 12-min windows 15 min-to-1 h 42min after administration. We observed IN-OT effects on all microstates, across the observation span. During eyes-closed, IN-OT increased duration and contribution of A and contribution and occurrence of D, decreased duration and contribution of B and C; and increased transition probability C-to-B and C-to-D. In eyes-open, it increased A-to-C and A-to-D. As microstates A and D have been related to phonological auditory and attentional networks, respectively, we posit IN-OT may tune the brain for reception of external stimuli, particularly of social nature—tentatively supporting current neurocognitive hypotheses of OT. Moreover, we contrast our overall results against a comprehensive literature review of IN-OT time-course effects in the brain, highlighting comparability issues.
Collapse
Affiliation(s)
| | | | - Janir da Cruz
- Laboratory of Psychophysics, Brain Mind Institute, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015 , Switzerland
- Institute for Systems and Robotics–Lisbon (LARSyS) and Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisboa 1049-001 , Portugal
| | - Marília Antunes
- Centro de Estatística e Aplicações e Departamento de Estatística e Investigação Operacional, Faculdade de Ciências, Universidade de Lisboa, Lisboa 1749-016, Portugal
| | - Patrícia Figueiredo
- Institute for Systems and Robotics–Lisbon (LARSyS) and Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisboa 1049-001 , Portugal
- INESC-ID, Instituto Superior Técnico, 1749-016 Lisboa, Portugal
| | - Mitul A Mehta
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK
| | - Diana Prata
- Address correspondence to Dr. Diana Prata, Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Portugal.
| |
Collapse
|
10
|
Tavares V, Vassos E, Marquand A, Stone J, Valli I, Barker GJ, Ferreira H, Prata D. Prediction of transition to psychosis from an at-risk mental state using structural neuroimaging, genetic, and environmental data. Front Psychiatry 2022; 13:1086038. [PMID: 36741573 PMCID: PMC9892839 DOI: 10.3389/fpsyt.2022.1086038] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/29/2022] [Indexed: 01/20/2023] Open
Abstract
INTRODUCTION Psychosis is usually preceded by a prodromal phase in which patients are clinically identified as being at in an "At Risk Mental State" (ARMS). A few studies have demonstrated the feasibility of predicting psychosis transition from an ARMS using structural magnetic resonance imaging (sMRI) data and machine learning (ML) methods. However, the reliability of these findings is unclear due to possible sampling bias. Moreover, the value of genetic and environmental data in predicting transition to psychosis from an ARMS is yet to be explored. METHODS In this study we aimed to predict transition to psychosis from an ARMS using a combination of ML, sMRI, genome-wide genotypes, and environmental risk factors as predictors, in a sample drawn from a pool of 246 ARMS subjects (60 of whom later transitioned to psychosis). First, the modality-specific values in predicting transition to psychosis were evaluated using several: (a) feature types; (b) feature manipulation strategies; (c) ML algorithms; (d) cross-validation strategies, as well as sample balancing and bootstrapping. Subsequently, the modalities whose at least 60% of the classification models showed an balanced accuracy (BAC) statistically better than chance level were included in a multimodal classification model. RESULTS AND DISCUSSION Results showed that none of the modalities alone, i.e., neuroimaging, genetic or environmental data, could predict psychosis from an ARMS statistically better than chance and, as such, no multimodal classification model was trained/tested. These results suggest that the value of structural MRI data and genome-wide genotypes in predicting psychosis from an ARMS, which has been fostered by previous evidence, should be reconsidered.
Collapse
Affiliation(s)
- Vânia Tavares
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal.,Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Evangelos Vassos
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.,National Institute for Health Research Maudsley Biomedical Research Centre, South London and Maudsley National Health System Trust, London, United Kingdom
| | - Andre Marquand
- Donders Centre for Cognitive Neuroimaging, Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Netherlands.,Department of Cognitive Neuroscience, Radboud University Medical Centre, Nijmegen, Netherlands
| | - James Stone
- Brighton and Sussex Medical School, University of Sussex, Brighton, United Kingdom
| | - Isabel Valli
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.,Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Gareth J Barker
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Hugo Ferreira
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal.,Department of Old Age Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| |
Collapse
|
11
|
Tavares V, Monteiro J, Vassos E, Coleman J, Prata D. Evaluation of Genotype-Based Gene Expression Model Performance: A Cross-Framework and Cross-Dataset Study. Genes (Basel) 2021; 12:1531. [PMID: 34680927 PMCID: PMC8536060 DOI: 10.3390/genes12101531] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/24/2021] [Accepted: 09/26/2021] [Indexed: 11/16/2022] Open
Abstract
Predicting gene expression from genotyped data is valuable for studying inaccessible tissues such as the brain. Herein we present eGenScore, a polygenic/poly-variation method, and compare it with PrediXcan, a method based on regularized linear regression using elastic nets. While both methods have the same purpose of predicting gene expression based on genotype, they carry important methodological differences. We compared the performance of expression quantitative trait loci (eQTL) models to predict gene expression in the frontal cortex, comparing across these frameworks (eGenScore vs. PrediXcan) and training datasets (BrainEAC, which is brain-specific, vs. GTEx, which has data across multiple tissues). In addition to internal five-fold cross-validation, we externally validated the gene expression models using the CommonMind Consortium database. Our results showed that (1) PrediXcan outperforms eGenScore regardless of the training database used; and (2) when using PrediXcan, the performance of the eQTL models in frontal cortex is higher when trained with GTEx than with BrainEAC.
Collapse
Affiliation(s)
- Vânia Tavares
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (V.T.); (J.M.)
- Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Joana Monteiro
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (V.T.); (J.M.)
- Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Almada, Portugal
| | - Evangelos Vassos
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London SE5 8AF, UK;
- NIHR Maudsley Biomedical Research Centre, South London and Maudsley NHS Trust, London SE5 8AZ, UK
| | - Jonathan Coleman
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London SE5 8AF, UK;
- NIHR Maudsley Biomedical Research Centre, South London and Maudsley NHS Trust, London SE5 8AZ, UK
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal; (V.T.); (J.M.)
- Instituto Universitário de Lisboa (Iscte-IUL), CIS-Iscte, 1749-016 Lisboa, Portugal
| |
Collapse
|
12
|
Cosme G, Rosa PJ, Lima CF, Tavares V, Scott S, Chen S, Wilcockson TDW, Crawford TJ, Prata D. Pupil dilation reflects the authenticity of received nonverbal vocalizations. Sci Rep 2021; 11:3733. [PMID: 33580104 PMCID: PMC7880996 DOI: 10.1038/s41598-021-83070-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 01/27/2021] [Indexed: 11/10/2022] Open
Abstract
The ability to infer the authenticity of other’s emotional expressions is a social cognitive process taking place in all human interactions. Although the neurocognitive correlates of authenticity recognition have been probed, its potential recruitment of the peripheral autonomic nervous system is not known. In this work, we asked participants to rate the authenticity of authentic and acted laughs and cries, while simultaneously recording their pupil size, taken as proxy of cognitive effort and arousal. We report, for the first time, that acted laughs elicited higher pupil dilation than authentic ones and, reversely, authentic cries elicited higher pupil dilation than acted ones. We tentatively suggest the lack of authenticity in others’ laughs elicits increased pupil dilation through demanding higher cognitive effort; and that, reversely, authenticity in cries increases pupil dilation, through eliciting higher emotional arousal. We also show authentic vocalizations and laughs (i.e. main effects of authenticity and emotion) to be perceived as more authentic, arousing and contagious than acted vocalizations and cries, respectively. In conclusion, we show new evidence that the recognition of emotional authenticity can be manifested at the level of the autonomic nervous system in humans. Notwithstanding, given its novelty, further independent research is warranted to ascertain its psychological meaning.
Collapse
Affiliation(s)
- Gonçalo Cosme
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal
| | - Pedro J Rosa
- HEI-LAB: Human-Environment Interaction Lab, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande, 376, 1749-024, Lisboa, Portugal.,Instituto Universitário de Lisboa (Iscte-IUL), CIS-Iscte, Avenida das Forças Armadas, 1649-026, Lisboa, Portugal
| | - César F Lima
- Instituto Universitário de Lisboa (Iscte-IUL), CIS-Iscte, Avenida das Forças Armadas, 1649-026, Lisboa, Portugal
| | - Vânia Tavares
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal.,Faculdade de Medicina da Universidade de Lisboa, Avenida Professor Egas Moniz MB, 1649-028, Lisboa, Portugal
| | - Sophie Scott
- Institute of Cognitive Neuroscience, University College London, Alexandra House, 17-19 Queen Square, Bloomsbury, London, UK
| | - Sinead Chen
- Risk Society and Policy Research Center, National Taiwan University, Roosevelt Rd., Daan Dist., Taipei, 10617, Taiwan
| | - Thomas D W Wilcockson
- Department of Psychology, Lancaster University, Lancaster, LA1 4YF, UK.,School of Sport, Exercise, and Health Sciences, Loughborough University, Clyde Williams Building, Epinal Way, Loughborough, LE11 3GE, UK
| | - Trevor J Crawford
- Department of Psychology, Lancaster University, Lancaster, LA1 4YF, UK
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal. .,Instituto Universitário de Lisboa (Iscte-IUL), CIS-Iscte, Avenida das Forças Armadas, 1649-026, Lisboa, Portugal. .,Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, 16 De Crespigny Park, Camberwell, London, SE5 8AF, UK.
| |
Collapse
|
13
|
Abstract
BACKGROUND The neuropeptides oxytocin and vasopressin have been repeatedly implicated in social decision making by enhancing social salience and, generally, cooperation. The iterated and sequential version of the prisoner's dilemma (PD) game is a social dilemma paradigm eliciting strategies of cooperation versus competition. AIMS We aimed to characterise the role of PD players' sex, game partner type (computer vs. human) and oxytocin or vasopressin inhalation on the player's strategy preference. METHODS Participants (153 men; 151 women) were randomised to intranasal 24 IU oxytocin, 20 IU vasopressin or placebo, double-blind, and played the PD. We examined main and interactive effects of sex, drug and partner type on strategy preference. RESULTS We found a pervasive preference for a tit-for-tat strategy (i.e. general sensitivity to the partner's choices) over unconditional cooperation, particularly when against a human rather than a computer partner. Oxytocin doubled this sensitivity in women (i.e. the preference for tit-for-tat over unconditional cooperation strategies) when playing against computers, which suggests a tendency to anthropomorphise them, and doubled women's unconditional cooperation preference when playing against humans. Vasopressin doubled sensitivity to the partner's previous choices (i.e. for tit-for-tat over unconditional cooperation) across sexes and partner types. CONCLUSIONS These findings suggest that women may be more sensitive to oxytocin's social effects of anthropomorphism of non-humans and of unconditional cooperation with humans, which may be consistent with evolutionary pressures for maternal care, and that vasopressin, irrespective of sex and partner type, may be generally sensitising humans to others' behaviour.
Collapse
Affiliation(s)
- Maria Leonor Neto
- Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Marília Antunes
- Centro de Estatística e Aplicações e Departamento de Estatística e Investigação Operacional, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Manuel Lopes
- INESC-ID, Instituto Superior Técnico, Lisbon, Portugal
| | - Duarte Ferreira
- Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - James Rilling
- Department of Anthropology, Emory University, Atlanta, USA
| | - Diana Prata
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
- Centro de Investigação e Intervenção Social (CIS-IUL), Instituto Universitário de Lisboa (ISCTE-IUL), Lisbon, Portugal
- Diana Prata, Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciência, Universidade de Lisboa, Campo Grande 1749-016 Lisboa, Portugal.
| |
Collapse
|
14
|
Simões B, Vassos E, Shergill S, McDonald C, Toulopoulou T, Kalidindi S, Kane F, Murray R, Bramon E, Ferreira H, Prata D. Schizophrenia polygenic risk score influence on white matter microstructure. J Psychiatr Res 2020; 121:62-67. [PMID: 31770658 DOI: 10.1016/j.jpsychires.2019.11.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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] [Received: 06/17/2019] [Revised: 11/17/2019] [Accepted: 11/18/2019] [Indexed: 12/25/2022]
Abstract
Schizophrenia (SZ) and bipolar disorder (BD) are highly heritable, share symptomatology, and have a polygenic architecture. The impact of recent polygenic risk scores (PRS) for psychosis, which combine multiple genome-wide associated risk variations, should be assessed on heritable brain phenotypes also previously associated with the illnesses, for a better understanding of the pathways to disease. We have recently reported on the current SZ PRS's ability to predict 1st episode of psychosis case-control status and general cognition. Herein, we test its penetrance on white matter microstructure, which is known to be impaired in SZ, in BD and their relatives, using 141 participants (including SZ, BP, relatives of SZ or BP patients, and healthy volunteers), and two white matter integrity indexes: fractional anisotropy (FA) and mean diffusivity (MD). No significant correlation between the SZ PRS and FA or MD was found, thus it remains unclear whether white matter changes are primarily associated with SZ genetic risk profiles.
Collapse
Affiliation(s)
- Beatriz Simões
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Portugal
| | - Evangelos Vassos
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - Sukhi Shergill
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Colm McDonald
- Centre for Neuroimaging & Cognitive Genomics (NICOG), NCBES Galway Neuroscience Centre, National University of Ireland Galway, Ireland
| | - Timothea Toulopoulou
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK; Department of Psychology, The University of Hong Kong, Hong Kong Special Administrative Region, China; Department of Psychology, Bilkent University, Turkey
| | - Sridevi Kalidindi
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK; South London and Maudsley NHS Foundation Trust, London, UK
| | - Fergus Kane
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Robin Murray
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Elvira Bramon
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK; Mental Health Neurosciences Research Department, Division of Psychiatry, University College London, London, UK
| | - Hugo Ferreira
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Portugal
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Portugal; Department of Neuroimaging, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK; Instituto Universitário de Lisboa (ISCTE-IUL), Centro de Investigação e Intervenção Social, Lisboa, Portugal.
| |
Collapse
|
15
|
Tavares V, Prata D, Ferreira HA. Comparing SPM12 and CAT12 segmentation pipelines: a brain tissue volume-based age and Alzheimer's disease study. J Neurosci Methods 2019; 334:108565. [PMID: 31887318 DOI: 10.1016/j.jneumeth.2019.108565] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [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: 12/06/2019] [Accepted: 12/18/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND Brain volumes have been used as research biomarkers both in health and in Alzheimer's disease(AD). In order to improve the comparability between studies and aid future analytical software platform choice in the research setting, here we compare two segmentation pipelines of structural brain magnetic resonance imaging(sMRI): the SPM12 toolbox, and a SPM12 add-on, the CAT12 toolbox. METHODS We segmented 1.5T and 3T T1-weighted sMRI images (from the OASIS-brain database) using both pipelines and compared them in terms of their impact on: 1)the effect of age on the total grey matter(GM) and white matter(WM), and on the hippocampi GM volumes in a healthy sample(n = 238); 2)the effect of AD diagnosis on the same volume measures; and 3)the accuracy of each volume measure detecting diagnosis (100 patients with AD and 78 age- and gender-matched healthy subjects). RESULTS AND COMPARISON BETWEEN METHODS Our results demonstrated that: 1)volume estimates from SPM12 were highly correlated with the ones from CAT12, albeit absolute differences between pipelines were tissue specific; 2)the choice of pipeline modulated the effect of age on all volume measures and of diagnosis on hippocampi GM volumes computed from 3 T data; and 3)pipeline had no impact on the accuracy of any brain volume measure detecting AD diagnosis. CONCLUSIONS Our findings indicate that other studies should take these pipeline effects on age and AD diagnosis, into account, for improved comparability in previous literature. Additionally, we encourage future studies to use CAT12 as this is a more advanced and computationally efficient brain segmentation tool.
Collapse
Affiliation(s)
- Vânia Tavares
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Portugal; Faculdade de Medicina da Universidade de Lisboa, Portugal.
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Portugal; Instituto Universitário de Lisboa (ISCTE-IUL), CIS-IUL, Lisboa, Portugal; Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - Hugo Alexandre Ferreira
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências da Universidade de Lisboa, Portugal
| |
Collapse
|
16
|
Dahoun T, Pardiñas AF, Veronese M, Bloomfield MAP, Jauhar S, Bonoldi I, Froudist-Walsh S, Nosarti C, Korth C, Hennah W, Walters J, Prata D, Howes OD. The effect of the DISC1 Ser704Cys polymorphism on striatal dopamine synthesis capacity: an [18F]-DOPA PET study. Hum Mol Genet 2018; 27:3498-3506. [PMID: 29945223 PMCID: PMC6168972 DOI: 10.1093/hmg/ddy242] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 06/22/2018] [Accepted: 06/22/2018] [Indexed: 11/14/2022] Open
Abstract
Whilst the role of the Disrupted-in-Schizophrenia 1 (DISC1) gene in the aetiology of major mental illnesses is debated, the characterization of its function lends it credibility as a candidate. A key aspect of this functional characterization is the determination of the role of common non-synonymous polymorphisms on normal variation within these functions. The common allele (A) of the DISC1 single-nucleotide polymorphism (SNP) rs821616 encodes a serine (ser) at the Ser704Cys polymorphism, and has been shown to increase the phosphorylation of extracellular signal-regulated protein Kinases 1 and 2 (ERK1/2) that stimulate the phosphorylation of tyrosine hydroxylase, the rate-limiting enzyme for dopamine biosynthesis. We therefore set out to test the hypothesis that human ser (A) homozygotes would show elevated dopamine synthesis capacity compared with cysteine (cys) homozygotes and heterozygotes (TT and AT) for rs821616. [18F]-DOPA positron emission tomography (PET) was used to index striatal dopamine synthesis capacity as the influx rate constant Kicer in healthy volunteers DISC1 rs821616 ser homozygotes (N = 46) and healthy volunteers DISC1 rs821616 cys homozygotes and heterozygotes (N = 56), matched for age, gender, ethnicity and using three scanners. We found DISC1 rs821616 ser homozygotes exhibited a significantly higher striatal Kicer compared with cys homozygotes and heterozygotes (P = 0.012) explaining 6.4% of the variance (partial η2 = 0.064). Our finding is consistent with its previous association with heightened activation of ERK1/2, which stimulates tyrosine hydroxylase activity for dopamine synthesis. This could be a potential mechanism mediating risk for psychosis, lending further credibility to the fact that DISC1 is of functional interest in the aetiology of major mental illness.
Collapse
Affiliation(s)
- Tarik Dahoun
- Psychiatric Imaging Group, Robert Steiner MRI Unit, MRC London Institute of Medical Sciences, Imperial College London, Hammersmith Hospital, London, UK
- Faculty of Medicine, Institute of Clinical Sciences (ICS), Imperial College London, Hammersmith Hospital, London, UK
- Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford OX37 JX, UK
| | - Antonio F Pardiñas
- Division of Psychological Medicine and Clinical Neurosciences, MRC Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Cardiff, UK
| | - Mattia Veronese
- Centre for Neuroimaging Sciences, King’s College London, London, UK
| | - Michael A P Bloomfield
- Psychiatric Imaging Group, Robert Steiner MRI Unit, MRC London Institute of Medical Sciences, Imperial College London, Hammersmith Hospital, London, UK
- Faculty of Medicine, Institute of Clinical Sciences (ICS), Imperial College London, Hammersmith Hospital, London, UK
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King’s College London, London, UK
- Division of Psychiatry, University College London, London, UK
- Clinical Psychopharmacology Unit, Research Department of Clinical, Educational and Health Psychology, University College London, London, UK
| | - Sameer Jauhar
- Psychiatric Imaging Group, Robert Steiner MRI Unit, MRC London Institute of Medical Sciences, Imperial College London, Hammersmith Hospital, London, UK
- Faculty of Medicine, Institute of Clinical Sciences (ICS), Imperial College London, Hammersmith Hospital, London, UK
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King’s College London, London, UK
| | - Ilaria Bonoldi
- Psychiatric Imaging Group, Robert Steiner MRI Unit, MRC London Institute of Medical Sciences, Imperial College London, Hammersmith Hospital, London, UK
- Faculty of Medicine, Institute of Clinical Sciences (ICS), Imperial College London, Hammersmith Hospital, London, UK
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King’s College London, London, UK
| | | | - Chiara Nosarti
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King’s College London, London, UK
- Division of Imaging Sciences & Biomedical Engineering, Centre for the Developing Brain, King’s College London, London, UK
| | - Carsten Korth
- Department Neuropathology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - William Hennah
- Institute for Molecular Medicine Finland FIMM, University of Helsinki, Helsinki, Finland
- Mental Health Unit, Department of Health, National Institute for Health and Welfare, Helsinki, Finland
- Medicum, University of Helsinki, Helsinki, Finland
| | - James Walters
- Division of Psychological Medicine and Clinical Neurosciences, MRC Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Cardiff, UK
| | - Diana Prata
- Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
- Department of Neuroimaging, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
- Instituto Universitário de Lisboa (ISCTE-IUL), Cis-IUL, Lisbon, Portugal
| | - Oliver D Howes
- Psychiatric Imaging Group, Robert Steiner MRI Unit, MRC London Institute of Medical Sciences, Imperial College London, Hammersmith Hospital, London, UK
- Faculty of Medicine, Institute of Clinical Sciences (ICS), Imperial College London, Hammersmith Hospital, London, UK
- Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience (IoPPN), King’s College London, London, UK
| |
Collapse
|
17
|
Torres N, Martins D, Santos AJ, Prata D, Veríssimo M. How do hypothalamic nonapeptides shape youth's sociality? A systematic review on oxytocin, vasopressin and human socio-emotional development. Neurosci Biobehav Rev 2018; 90:309-331. [PMID: 29738796 DOI: 10.1016/j.neubiorev.2018.05.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [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: 11/30/2017] [Revised: 04/26/2018] [Accepted: 05/02/2018] [Indexed: 12/13/2022]
Abstract
The hypothalamic nonapeptides oxytocin and vasopressin are important modulators of socio-affective behaviours in a wide variety of animal species, including humans. Nevertheless, there is little research addressing their possible roles on socio-affective dimensions of human behaviour across development, during which considerable behavioural and physiological change occurs. Questions still remain about the extent to which findings from adults may directly apply to earlier phases of human development. In this article, we systematically summarize and discuss all existing studies investigating the developmental association of endogenous levels of hypothalamic neuropeptides oxytocin and vasopressin with human social behaviour or on its disruption in paediatric populations. Evidence is sparse insofar as there are still relatively few developmental studies and limited due to correlational research designs and unreliability of methods currently used for neuropeptide measurements in biological fluids. The findings to date generally converge with adult evidence, but also suggest that important differences between age stages may exist. Further studies focusing these differences may prove critical for informing drug development for socio-affective deficits in paediatric populations.
Collapse
Affiliation(s)
- Nuno Torres
- William James Center for Research, ISPA - Instituto Universitário, Lisboa, Portugal
| | - Daniel Martins
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - António J Santos
- William James Center for Research, ISPA - Instituto Universitário, Lisboa, Portugal
| | - Diana Prata
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK; Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Portugal; ISCTE - Instituto Universitário de Lisboa, Portugal
| | - Manuela Veríssimo
- William James Center for Research, ISPA - Instituto Universitário, Lisboa, Portugal.
| |
Collapse
|
18
|
Vassos E, Di Forti M, Coleman J, Iyegbe C, Prata D, Euesden J, O'Reilly P, Curtis C, Kolliakou A, Patel H, Newhouse S, Traylor M, Ajnakina O, Mondelli V, Marques TR, Gardner-Sood P, Aitchison KJ, Powell J, Atakan Z, Greenwood KE, Smith S, Ismail K, Pariante C, Gaughran F, Dazzan P, Markus HS, David AS, Lewis CM, Murray RM, Breen G. An Examination of Polygenic Score Risk Prediction in Individuals With First-Episode Psychosis. Biol Psychiatry 2017; 81:470-477. [PMID: 27765268 DOI: 10.1016/j.biopsych.2016.06.028] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [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] [Received: 10/29/2015] [Revised: 01/20/2016] [Accepted: 01/22/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND Polygenic risk scores (PRSs) have successfully summarized genome-wide effects of genetic variants in schizophrenia with significant predictive power. In a clinical sample of first-episode psychosis (FEP) patients, we estimated the ability of PRSs to discriminate case-control status and to predict the development of schizophrenia as opposed to other psychoses. METHODS The sample (445 case and 265 control subjects) was genotyped on the Illumina HumanCore Exome BeadChip with an additional 828 control subjects of African ancestry genotyped on the Illumina Multi-Ethnic Genotyping Array. To calculate PRSs, we used the results from the latest Psychiatric Genomics Consortium schizophrenia meta-analysis. We examined the association of PRSs with case-control status and with schizophrenia versus other psychoses in European and African ancestry FEP patients and in a second sample of 248 case subjects with chronic psychosis. RESULTS PRS had good discriminative ability of case-control status in FEP European ancestry individuals (9.4% of the variance explained, p < 10-6), but lower in individuals of African ancestry (R2 = 1.1%, p = .004). Furthermore, PRS distinguished European ancestry case subjects who went on to acquire a schizophrenia diagnosis from those who developed other psychotic disorders (R2 = 9.2%, p = .002). CONCLUSIONS PRS was a powerful predictor of case-control status in a European sample of patients with FEP, even though a large proportion did not have an established diagnosis of schizophrenia at the time of assessment. PRS was significantly different between those case subjects who developed schizophrenia from those who did not, although the discriminative accuracy may not yet be sufficient for clinical utility in FEP.
Collapse
Affiliation(s)
- Evangelos Vassos
- Medical Research Council, Social, Genetic & Developmental Psychiatry Centre; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom.
| | - Marta Di Forti
- Medical Research Council, Social, Genetic & Developmental Psychiatry Centre; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; Departments of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Jonathan Coleman
- Medical Research Council, Social, Genetic & Developmental Psychiatry Centre; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Conrad Iyegbe
- Departments of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Diana Prata
- Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - Jack Euesden
- Medical Research Council, Social, Genetic & Developmental Psychiatry Centre; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Paul O'Reilly
- Medical Research Council, Social, Genetic & Developmental Psychiatry Centre; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Charles Curtis
- Medical Research Council, Social, Genetic & Developmental Psychiatry Centre; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; National Institute for Health Research Mental Health Biomedical Research Centre, South London and Maudsley National Health Service Foundation Trust and King's College London, London, United Kingdom
| | - Anna Kolliakou
- Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Hamel Patel
- Medical Research Council, Social, Genetic & Developmental Psychiatry Centre; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; National Institute for Health Research Mental Health Biomedical Research Centre, South London and Maudsley National Health Service Foundation Trust and King's College London, London, United Kingdom
| | - Stephen Newhouse
- Medical Research Council, Social, Genetic & Developmental Psychiatry Centre; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; National Institute for Health Research Mental Health Biomedical Research Centre, South London and Maudsley National Health Service Foundation Trust and King's College London, London, United Kingdom
| | - Matthew Traylor
- Department of Medical and Molecular Genetics, King's College London, London, United Kingdom
| | - Olesya Ajnakina
- Departments of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Valeria Mondelli
- Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - Tiago Reis Marques
- Departments of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Poonam Gardner-Sood
- Departments of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Katherine J Aitchison
- Medical Research Council, Social, Genetic & Developmental Psychiatry Centre; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; Department of Psychiatry, University of Alberta, Edmonton, Alberta, Canada
| | - John Powell
- Basic and Clinical Neuroscience; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Zerrin Atakan
- Departments of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Kathryn E Greenwood
- School of Psychology, University of Sussex, Brighton and Sussex Partnership National Health Service Foundation Trust, West Sussex
| | - Shubulade Smith
- Departments of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; South London and Maudsley National Health Service Foundation Trust, London; United Kingdom
| | - Khalida Ismail
- Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Carmine Pariante
- Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Fiona Gaughran
- Departments of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Paola Dazzan
- Departments of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; National Institute for Health Research Mental Health Biomedical Research Centre, South London and Maudsley National Health Service Foundation Trust and King's College London, London, United Kingdom
| | - Hugh S Markus
- Department of Clinical Neurosciences, Neurology Unit, University of Cambridge, Cambridge, United Kingdom
| | - Anthony S David
- Departments of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Cathryn M Lewis
- Medical Research Council, Social, Genetic & Developmental Psychiatry Centre; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Robin M Murray
- Departments of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Gerome Breen
- Medical Research Council, Social, Genetic & Developmental Psychiatry Centre; Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; National Institute for Health Research Mental Health Biomedical Research Centre, South London and Maudsley National Health Service Foundation Trust and King's College London, London, United Kingdom
| |
Collapse
|
19
|
Martins D, Paloyelis Y, Prata D. "Shedding light on a dark question": Peripheral oxytocin signalling and neurobehavioral responses to intranasal oxytocin in humans. Psychoneuroendocrinology 2016; 73:271-272. [PMID: 27613568 DOI: 10.1016/j.psyneuen.2016.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 08/02/2016] [Indexed: 11/26/2022]
Affiliation(s)
- Daniel Martins
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Portugal.
| | - Yannis Paloyelis
- King's College London, Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, UK
| | - Diana Prata
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Portugal; Kings College London, Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London SE5 8AF, UK
| |
Collapse
|
20
|
Sabattini S, Barzon G, Giantin M, Lopparelli RM, Dacasto M, Prata D, Bettini G. Kit receptor tyrosine kinase dysregulations in feline splenic mast cell tumours. Vet Comp Oncol 2016; 15:1051-1061. [DOI: 10.1111/vco.12246] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 04/26/2016] [Accepted: 05/07/2016] [Indexed: 11/29/2022]
Affiliation(s)
- S. Sabattini
- Department of Veterinary Medical Sciences; Alma Mater Studiorum - University of Bologna; Bologna Italy
| | - G. Barzon
- Department of Veterinary Medical Sciences; Alma Mater Studiorum - University of Bologna; Bologna Italy
| | - M. Giantin
- Department of Comparative Biomedicine and Food Science; University of Padua; Padua Italy
| | - R. M. Lopparelli
- Department of Comparative Biomedicine and Food Science; University of Padua; Padua Italy
| | - M. Dacasto
- Department of Comparative Biomedicine and Food Science; University of Padua; Padua Italy
| | - D. Prata
- Laboratoire IDEXX; Saint Denis France
| | - G. Bettini
- Department of Veterinary Medical Sciences; Alma Mater Studiorum - University of Bologna; Bologna Italy
| |
Collapse
|
21
|
Bianconi F, Bonomo M, Marconi A, Kolliakou A, Stilo SA, Iyegbe C, Gurillo Muñoz P, Homayoun S, Mondelli V, Luzi S, Dazzan P, Prata D, La Cascia C, O'Connor J, David A, Morgan C, Murray RM, Lynskey M, Di Forti M. Differences in cannabis-related experiences between patients with a first episode of psychosis and controls. Psychol Med 2016; 46:995-1003. [PMID: 26670601 DOI: 10.1017/s0033291715002494] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Many studies have reported that cannabis use increases the risk of a first episode of psychosis (FEP). However, only a few studies have investigated the nature of cannabis-related experiences in FEP patients, and none has examined whether these experiences are similar in FEP and general populations. The aim of this study was to explore differences in self-reported cannabis experiences between FEP and non-psychotic populations. METHOD A total of 252 subjects, who met International Classification of Diseases (ICD)-10 criteria for FEP, and 217 controls who reported cannabis use were selected from the Genetics and Psychosis (GAP) study. The Medical Research Council Social Schedule and the Cannabis Experience Questionnaire were used to collect sociodemographic data and cannabis use information, respectively. RESULTS Both 'bad' and 'enjoyable' experiences were more commonly reported by FEP subjects than controls. Principal components factor analysis identified four components which explained 62.3% of the variance. Linear regression analysis on the whole sample showed that the type of cannabis used and beliefs about the effect of cannabis on health all contributed to determining the intensity and frequency of experiences. Linear regression analysis on FEP subjects showed that the duration of cannabis use and amount of money spent on cannabis were strongly related to the intensity and frequency of enjoyable experiences in this population. CONCLUSIONS These results suggest a higher sensitivity to cannabis effects among people who have suffered their first psychotic episode; this hypersensitivity results in them reporting both more 'bad' and 'enjoyable' experiences. The greater enjoyment experienced may provide an explanation of why FEP patients are more likely to use cannabis and to continue to use it despite experiencing an exacerbation of their psychotic symptoms.
Collapse
Affiliation(s)
- F Bianconi
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - M Bonomo
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - A Marconi
- Department of Paediatrics and Child and Adolescent Neuropsychiatry,'Sapienza' University of Rome,Rome,Italy
| | - A Kolliakou
- Biomedical Research Centre Nucleus,King's College London,London,UK
| | - S A Stilo
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - C Iyegbe
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | | | - S Homayoun
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - V Mondelli
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - S Luzi
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - P Dazzan
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - D Prata
- Department of Neuroimaging,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - C La Cascia
- Department of Experimental Biomedicine and Clinical Neuroscience,University of Palermo,Palermo,Italy
| | - J O'Connor
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - A David
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - C Morgan
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - R M Murray
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - M Lynskey
- Addiction Department,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| | - M Di Forti
- Department of Psychosis Studies,Institute of Psychiatry, Psychology and Neuroscience, King's College London,London,UK
| |
Collapse
|
22
|
Mechelli A, Prata D, Kefford C, Kapur S. Predicting clinical response in people at ultra-high risk of psychosis: a systematic and quantitative review. Drug Discov Today 2015; 20:924-7. [DOI: 10.1016/j.drudis.2015.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 02/22/2015] [Accepted: 03/10/2015] [Indexed: 11/29/2022]
|
23
|
Di Forti M, Sallis H, Allegri F, Trotta A, Ferraro L, Stilo SA, Marconi A, La Cascia C, Reis Marques T, Pariante C, Dazzan P, Mondelli V, Paparelli A, Kolliakou A, Prata D, Gaughran F, David AS, Morgan C, Stahl D, Khondoker M, MacCabe JH, Murray RM. Daily use, especially of high-potency cannabis, drives the earlier onset of psychosis in cannabis users. Schizophr Bull 2014; 40:1509-17. [PMID: 24345517 PMCID: PMC4193693 DOI: 10.1093/schbul/sbt181] [Citation(s) in RCA: 284] [Impact Index Per Article: 28.4] [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: 01/11/2023]
Abstract
UNLABELLED Cannabis use is associated with an earlier age of onset of psychosis (AOP). However, the reasons for this remain debated. METHODS We applied a Cox proportional hazards model to 410 first-episode psychosis patients to investigate the association between gender, patterns of cannabis use, and AOP. RESULTS Patients with a history of cannabis use presented with their first episode of psychosis at a younger age (mean years = 28.2, SD = 8.0; median years = 27.1) than those who never used cannabis (mean years = 31.4, SD = 9.9; median years = 30.0; hazard ratio [HR] = 1.42; 95% CI: 1.16-1.74; P < .001). This association remained significant after controlling for gender (HR = 1.39; 95% CI: 1.11-1.68; P < .001). Those who had started cannabis at age 15 or younger had an earlier onset of psychosis (mean years = 27.0, SD = 6.2; median years = 26.9) than those who had started after 15 years (mean years = 29.1, SD = 8.5; median years = 27.8; HR = 1.40; 95% CI: 1.06-1.84; P = .050). Importantly, subjects who had been using high-potency cannabis (skunk-type) every day had the earliest onset (mean years = 25.2, SD = 6.3; median years = 24.6) compared to never users among all the groups tested (HR = 1.99; 95% CI: 1.50- 2.65; P < .0001); these daily users of high-potency cannabis had an onset an average of 6 years earlier than that of non-cannabis users. CONCLUSIONS Daily use, especially of high-potency cannabis, drives the earlier onset of psychosis in cannabis users.
Collapse
Affiliation(s)
- Marta Di Forti
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK;
| | - Hannah Sallis
- School of Social and Community Medicine, Bristol University, Bristol, UK
| | - Fabio Allegri
- Department of Psychiatry, Bologna University, Bologna, Italy
| | - Antonella Trotta
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK
| | - Laura Ferraro
- Department of Psychiatry and Neuroscience, Palermo University, Palermo, Italy
| | - Simona A. Stilo
- Department of Health Services and Public Health, Institute of Psychiatry, Kings College London, London, UK
| | - Arianna Marconi
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK
| | - Caterina La Cascia
- Department of Psychiatry and Neuroscience, Palermo University, Palermo, Italy
| | - Tiago Reis Marques
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK
| | - Carmine Pariante
- Department of Psychological Medicine, Institute of Psychiatry, Kings College London, London, UK
| | - Paola Dazzan
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK
| | - Valeria Mondelli
- Department of Psychological Medicine, Institute of Psychiatry, Kings College London, London, UK
| | - Alessandra Paparelli
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK
| | - Anna Kolliakou
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK
| | - Diana Prata
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK
| | - Fiona Gaughran
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK
| | - Anthony S. David
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK
| | - Craig Morgan
- Department of Health Services and Public Health, Institute of Psychiatry, Kings College London, London, UK
| | - Daniel Stahl
- Department of Biostatistics, Institute of Psychiatry, Kings College London, London, UK
| | - Mizanur Khondoker
- Department of Biostatistics, Institute of Psychiatry, Kings College London, London, UK
| | - James H. MacCabe
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK;,Joint last authors
| | - Robin M. Murray
- Department of Psychosis Studies, Institute of Psychiatry, Kings College London, London, UK;,Joint last authors
| |
Collapse
|
24
|
Bhattacharyya S, Iyegbe C, Atakan Z, Martin-Santos R, Crippa JA, Xu X, Williams S, Brammer M, Rubia K, Prata D, Collier DA, McGuire PK. Protein kinase B (AKT1) genotype mediates sensitivity to cannabis-induced impairments in psychomotor control. Psychol Med 2014; 44:3315-3328. [PMID: 25065544 DOI: 10.1017/s0033291714000920] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND What determines inter-individual variability to impairments in behavioural control that may underlie road-traffic accidents, and impulsive and violent behaviours occurring under the influence of cannabis, the most widely used illicit drug worldwide? METHOD Employing a double-blind, repeated-measures design, we investigated the genetic and neural basis of variable sensitivity to cannabis-induced behavioural dyscontrol in healthy occasional cannabis users. Acute oral challenge with placebo or Δ9-tetrahydrocannabinol (THC), the main psychoactive ingredient in cannabis, was combined with functional magnetic resonance imaging, while participants performed a response inhibition task that involved inhibiting a pre-potent motor response. They were genotyped for rs1130233 single nucleotide polymorphisms (SNPs) of the protein kinase B (AKT1) gene. RESULTS Errors of inhibition were significantly (p = 0.008) increased following administration of THC in carriers of the A allele, but not in G allele homozygotes of the AKT1 rs1130233 SNP. The A allele carriers also displayed attenuation of left inferior frontal response with THC evident in the sample as a whole, while there was a modest enhancement of inferior frontal activation in the G homozygotes. There was a direct relationship (r = -0.327, p = 0.045) between the behavioural effect of THC and its physiological effect in the inferior frontal gyrus, where AKT1 genotype modulated the effect of THC. CONCLUSIONS These results require independent replication and show that differing vulnerability to acute psychomotor impairments induced by cannabis depends on variation in a gene that influences dopamine function, and is mediated through modulation of the effect of cannabis on the inferior frontal cortex, that is rich in dopaminergic innervation and critical for psychomotor control.
Collapse
Affiliation(s)
- S Bhattacharyya
- Department of Psychosis Studies,King's College London,Institute of Psychiatry, De Crespigny Park, London,UK
| | - C Iyegbe
- Social, Genetic and Developmental Psychiatry Centre,King's College London,Institute of Psychiatry, De Crespigny Park, London,UK
| | - Z Atakan
- Department of Psychosis Studies,King's College London,Institute of Psychiatry, De Crespigny Park, London,UK
| | - R Martin-Santos
- Pharmacology Research Unit, IMIM-Hospital del Mar and Psychiatric Department,ICN,Hospital Clinico, Barcelona,Spain
| | - J A Crippa
- Department of Neurology, Psychiatry and Medical Psychology, Faculty of Medicine of Ribeirão Preto,University of São Paulo,Brazil
| | - X Xu
- Social, Genetic and Developmental Psychiatry Centre,King's College London,Institute of Psychiatry, De Crespigny Park, London,UK
| | - S Williams
- Department of Neuroimaging, Centre for Neuroimaging Sciences,King's College London,Institute of Psychiatry, De Crespigny Park, London,UK
| | - M Brammer
- Department of Neuroimaging, Centre for Neuroimaging Sciences,King's College London,Institute of Psychiatry, De Crespigny Park, London,UK
| | - K Rubia
- Department of Child and Adolescent Psychiatry,King's College London,Institute of Psychiatry, De Crespigny Park, London,UK
| | - D Prata
- Department of Psychosis Studies,King's College London,Institute of Psychiatry, De Crespigny Park, London,UK
| | - D A Collier
- Social, Genetic and Developmental Psychiatry Centre,King's College London,Institute of Psychiatry, De Crespigny Park, London,UK
| | - P K McGuire
- Department of Psychosis Studies,King's College London,Institute of Psychiatry, De Crespigny Park, London,UK
| |
Collapse
|
25
|
Ajnakina O, Borges S, Di Forti M, Patel Y, Xu X, Green P, Stilo SA, Kolliakou A, Sood P, Marques TR, David AS, Prata D, Dazzan P, Powell J, Pariante C, Mondelli V, Morgan C, Murray RM, Fisher HL, Iyegbe C. Role of Environmental Confounding in the Association between FKBP5 and First-Episode Psychosis. Front Psychiatry 2014; 5:84. [PMID: 25101008 PMCID: PMC4101879 DOI: 10.3389/fpsyt.2014.00084] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 07/03/2014] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Failure to account for the etiological diversity that typically occurs in psychiatric cohorts may increase the potential for confounding as a proportion of genetic variance will be specific to exposures that have varying distributions in cases. This study investigated whether minimizing the potential for such confounding strengthened the evidence for a genetic candidate currently unsupported at the genome-wide level. METHODS Two hundred and ninety-one first-episode psychosis cases from South London, UK and 218 unaffected controls were evaluated for a functional polymorphism at the rs1360780 locus in FKBP5. The relationship between FKBP5 and psychosis was modeled using logistic regression. Cannabis use (Cannabis Experiences Questionnaire) and parental separation (Childhood Experience of Care and Abuse Questionnaire) were included as confounders in the analysis. RESULTS Association at rs1360780 was not detected until the effects of the two environmental factors had been adjusted for in the model (OR = 2.81, 95% CI 1.23-6.43, p = 0.02). A statistical interaction between rs1360780 and parental separation was confirmed by stratified tests (OR = 2.8, p = 0.02 vs. OR = 0.89, p = 0.80). The genetic main effect was directionally consistent with findings in other (stress-related) clinical phenotypes. Moreover, the variation in effect magnitude was explained by the level of power associated with different cannabis constructs used in the model (r = 0.95). CONCLUSION Our results suggest that the extent to which genetic variants in FKBP5 can influence susceptibility to psychosis may depend on other etiological factors. This finding requires further validation in large independent cohorts. Potentially this work could have translational implications; the ability to discriminate between genetic etiologies based on a case-by-case understanding of previous environmental exposures would confer an important clinical advantage that would benefit the delivery of personalizable treatment strategies.
Collapse
Affiliation(s)
- Olesya Ajnakina
- Department of Psychosis Studies, Institute of Psychiatry, King's College London , London , UK
| | - Susana Borges
- Department of Health Services and Population Research, Institute of Psychiatry, King's College London , London , UK
| | - Marta Di Forti
- Department of Psychosis Studies, Institute of Psychiatry, King's College London , London , UK
| | - Yogen Patel
- Department of Neuroscience, Institute of Psychiatry, King's College London , London , UK
| | - Xiaohui Xu
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London , London , UK
| | - Priscilla Green
- Department of Neuroscience, Institute of Psychiatry, King's College London , London , UK
| | - Simona A Stilo
- Department of Psychosis Studies, Institute of Psychiatry, King's College London , London , UK
| | - Anna Kolliakou
- Department of Psychosis Studies, Institute of Psychiatry, King's College London , London , UK
| | - Poonam Sood
- Department of Psychosis Studies, Institute of Psychiatry, King's College London , London , UK
| | - Tiago Reis Marques
- Department of Psychosis Studies, Institute of Psychiatry, King's College London , London , UK
| | - Anthony S David
- Department of Psychosis Studies, Institute of Psychiatry, King's College London , London , UK
| | - Diana Prata
- Department of Psychosis Studies, Institute of Psychiatry, King's College London , London , UK
| | - Paola Dazzan
- Department of Psychosis Studies, Institute of Psychiatry, King's College London , London , UK
| | - John Powell
- Department of Neuroscience, Institute of Psychiatry, King's College London , London , UK
| | - Carmine Pariante
- Department of Psychological Medicine, Institute of Psychiatry, King's College London , London , UK
| | - Valeria Mondelli
- Department of Psychological Medicine, Institute of Psychiatry, King's College London , London , UK
| | - Craig Morgan
- Department of Health Services and Population Research, Institute of Psychiatry, King's College London , London , UK
| | - Robin M Murray
- Department of Psychosis Studies, Institute of Psychiatry, King's College London , London , UK
| | - Helen L Fisher
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London , London , UK
| | - Conrad Iyegbe
- Department of Psychosis Studies, Institute of Psychiatry, King's College London , London , UK ; MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London , London , UK
| |
Collapse
|
26
|
Pettersson-Yeo W, Benetti S, Marquand AF, Dell‘Acqua F, Williams SCR, Allen P, Prata D, McGuire P, Mechelli A. Using genetic, cognitive and multi-modal neuroimaging data to identify ultra-high-risk and first-episode psychosis at the individual level. Psychol Med 2013; 43:2547-2562. [PMID: 23507081 PMCID: PMC3821374 DOI: 10.1017/s003329171300024x] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 01/15/2013] [Accepted: 01/16/2013] [Indexed: 11/07/2022]
Abstract
BACKGROUND Group-level results suggest that relative to healthy controls (HCs), ultra-high-risk (UHR) and first-episode psychosis (FEP) subjects show alterations in neuroanatomy, neurofunction and cognition that may be mediated genetically. It is unclear, however, whether these groups can be differentiated at single-subject level, for instance using the machine learning analysis support vector machine (SVM). Here, we used a multimodal approach to examine the ability of structural magnetic resonance imaging (sMRI), functional MRI (fMRI), diffusion tensor neuroimaging (DTI), genetic and cognitive data to differentiate between UHR, FEP and HC subjects at the single-subject level using SVM. METHOD Three age- and gender-matched SVM paired comparison groups were created comprising 19, 19 and 15 subject pairs for FEP versus HC, UHR versus HC and FEP versus UHR, respectively. Genetic, sMRI, DTI, fMRI and cognitive data were obtained for each participant and the ability of each to discriminate subjects at the individual level in conjunction with SVM was tested. RESULTS Successful classification accuracies (p < 0.05) comprised FEP versus HC (genotype, 67.86%; DTI, 65.79%; fMRI, 65.79% and 68.42%; cognitive data, 73.69%), UHR versus HC (sMRI, 68.42%; DTI, 65.79%), and FEP versus UHR (sMRI, 76.67%; fMRI, 73.33%; cognitive data, 66.67%). CONCLUSIONS The results suggest that FEP subjects are identifiable at the individual level using a range of biological and cognitive measures. Comparatively, only sMRI and DTI allowed discrimination of UHR from HC subjects. For the first time FEP and UHR subjects have been shown to be directly differentiable at the single-subject level using cognitive, sMRI and fMRI data. Preliminarily, the results support clinical development of SVM to help inform identification of FEP and UHR subjects, though future work is needed to provide enhanced levels of accuracy.
Collapse
Affiliation(s)
- W. Pettersson-Yeo
- Department of Psychosis Studies, King's College London, Institute of Psychiatry, De Crespigny Park, London, UK
| | - S. Benetti
- Department of Psychosis Studies, King's College London, Institute of Psychiatry, De Crespigny Park, London, UK
| | - A. F. Marquand
- Department of Neuroimaging, Centre for Neuroimaging Sciences, Institute of Psychiatry, King's College London, De Crespigny Park, London, UK
| | - F. Dell‘Acqua
- Department of Forensic and Neurodevelopmental Science, King's College London, Institute of Psychiatry, De Crespigny Park, London, UK
- NIHR Biomedical Research Centre for Mental Health at South London and Maudsley NHS Foundation Trust and Institute of Psychiatry, King's College London, London, UK
| | - S. C. R. Williams
- Department of Neuroimaging, Centre for Neuroimaging Sciences, Institute of Psychiatry, King's College London, De Crespigny Park, London, UK
| | - P. Allen
- Department of Psychosis Studies, King's College London, Institute of Psychiatry, De Crespigny Park, London, UK
| | - D. Prata
- Department of Psychosis Studies, King's College London, Institute of Psychiatry, De Crespigny Park, London, UK
| | - P. McGuire
- Department of Psychosis Studies, King's College London, Institute of Psychiatry, De Crespigny Park, London, UK
| | - A. Mechelli
- Department of Psychosis Studies, King's College London, Institute of Psychiatry, De Crespigny Park, London, UK
| |
Collapse
|
27
|
Bhattacharyya S, Atakan Z, Martin-Santos R, Crippa JA, Kambeitz J, Prata D, Williams S, Brammer M, Collier DA, McGuire PK. Preliminary report of biological basis of sensitivity to the effects of cannabis on psychosis: AKT1 and DAT1 genotype modulates the effects of δ-9-tetrahydrocannabinol on midbrain and striatal function. Mol Psychiatry 2012; 17:1152-5. [PMID: 22290123 DOI: 10.1038/mp.2011.187] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
28
|
Costafreda SG, Fu CHY, Picchioni M, Toulopoulou T, McDonald C, Kravariti E, Walshe M, Prata D, Murray RM, McGuire PK. Pattern of neural responses to verbal fluency shows diagnostic specificity for schizophrenia and bipolar disorder. BMC Psychiatry 2011; 11:18. [PMID: 21276242 PMCID: PMC3042380 DOI: 10.1186/1471-244x-11-18] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2010] [Accepted: 01/28/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Impairments in executive function and language processing are characteristic of both schizophrenia and bipolar disorder. Their functional neuroanatomy demonstrate features that are shared as well as specific to each disorder. Determining the distinct pattern of neural responses in schizophrenia and bipolar disorder may provide biomarkers for their diagnoses. METHODS 104 participants underwent functional magnetic resonance imaging (fMRI) scans while performing a phonological verbal fluency task. Subjects were 32 patients with schizophrenia in remission, 32 patients with bipolar disorder in an euthymic state, and 40 healthy volunteers. Neural responses to verbal fluency were examined in each group, and the diagnostic potential of the pattern of the neural responses was assessed with machine learning analysis. RESULTS During the verbal fluency task, both patient groups showed increased activation in the anterior cingulate, left dorsolateral prefrontal cortex and right putamen as compared to healthy controls, as well as reduced deactivation of precuneus and posterior cingulate. The magnitude of activation was greatest in patients with schizophrenia, followed by patients with bipolar disorder and then healthy individuals. Additional recruitment in the right inferior frontal and right dorsolateral prefrontal cortices was observed in schizophrenia relative to both bipolar disorder and healthy subjects. The pattern of neural responses correctly identified individual patients with schizophrenia with an accuracy of 92%, and those with bipolar disorder with an accuracy of 79% in which mis-classification was typically of bipolar subjects as healthy controls. CONCLUSIONS In summary, both schizophrenia and bipolar disorder are associated with altered function in prefrontal, striatal and default mode networks, but the magnitude of this dysfunction is particularly marked in schizophrenia. The pattern of response to verbal fluency is highly diagnostic for schizophrenia and distinct from bipolar disorder. Pattern classification of functional MRI measurements of language processing is a potential diagnostic marker of schizophrenia.
Collapse
Affiliation(s)
- Sergi G Costafreda
- Institute of Psychiatry, King's College London, De Crespigny Park, London UK.
| | - Cynthia HY Fu
- Institute of Psychiatry, King's College London, De Crespigny Park, London UK
| | - Marco Picchioni
- Institute of Psychiatry, King's College London, De Crespigny Park, London UK
| | | | - Colm McDonald
- Institute of Psychiatry, King's College London, De Crespigny Park, London UK
| | - Eugenia Kravariti
- Institute of Psychiatry, King's College London, De Crespigny Park, London UK
| | - Muriel Walshe
- Institute of Psychiatry, King's College London, De Crespigny Park, London UK
| | - Diana Prata
- Institute of Psychiatry, King's College London, De Crespigny Park, London UK
| | - Robin M Murray
- Institute of Psychiatry, King's College London, De Crespigny Park, London UK
| | - Philip K McGuire
- Institute of Psychiatry, King's College London, De Crespigny Park, London UK
| |
Collapse
|
29
|
Papagni S, Mechelli A, Prata D, Kambeitz J, Picchioni M, Fu C, Kane F, Kalidindi S, McDonald C, Kravariti E, Toulopoulou T, Murray R, Collier D, McGuire P. PW01-153 - Effect of DAAO on regional brain function in healthy individuals and patients with schizophrenia and bipolar disorder. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)71552-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
|
30
|
Dutt A, McDonald C, Dempster E, Prata D, Shaikh M, Williams I, Schulze K, Marshall N, Walshe M, Allin M, Collier D, Murray R, Bramon E. The effect of COMT, BDNF, 5-HTT, NRG1 and DTNBP1 genes on hippocampal and lateral ventricular volume in psychosis. Psychol Med 2009; 39:1783-1797. [PMID: 19573260 DOI: 10.1017/s0033291709990316] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Morphometric endophenotypes which have been proposed for psychotic disorders include lateral ventricular enlargement and hippocampal volume reductions. Genetic epidemiological studies support an overlap between schizophrenia and bipolar disorder, and COMT, BDNF, 5-HTT, NRG1 and DTNBP1 genes have been implicated in the aetiology of both these disorders. This study examined associations between these candidate genes and morphometric endophenotypes for psychosis. METHOD A total of 383 subjects (128 patients with psychosis, 194 of their unaffected relatives and 61 healthy controls) from the Maudsley Family Psychosis Study underwent structural magnetic resonance imaging and genotyping. The effect of candidate genes on brain morphometry was examined using linear regression models adjusting for clinical group, age, sex and correlations between members of the same family. RESULTS The results showed no evidence of association between variation in COMT genotype and lateral ventricular, and left or right hippocampal volumes. Neither was there any effect of the BDNF, 5-HTTLPR, NRG1 and DTNBP1 genotypes on these regional brain volumes. CONCLUSIONS Abnormal hippocampal and lateral ventricular volumes are among the most replicated endophenotypes for psychosis; however, the influences of COMT, BDNF, 5-HTT, NRG1 and DTNBP1 genes on these key brain regions must be very subtle if at all present.
Collapse
Affiliation(s)
- A Dutt
- NIHR Biomedical Research Centre, Institute of Psychiatry (King's College London)/South London and Maudsley NHS Foundation Trust, London, UK.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Mechelli A, Tognin S, McGuire PK, Prata D, Sartori G, Fusar-Poli P, De Brito S, Hariri AR, Viding E. Genetic vulnerability to affective psychopathology in childhood: a combined voxel-based morphometry and functional magnetic resonance imaging study. Biol Psychiatry 2009; 66:231-7. [PMID: 19278671 DOI: 10.1016/j.biopsych.2009.01.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2008] [Revised: 01/30/2009] [Accepted: 01/30/2009] [Indexed: 11/18/2022]
Abstract
BACKGROUND The majority of affective psychopathology is rooted early in life and first emerges during childhood and adolescence. However, little is known about how genetic vulnerability affects brain structure and function in childhood since the vast majority of studies published so far have been conducted on adult participants. The present investigation examined for the first time the effects of catechol-O-methyltransferase (COMT) valine (val) 158 methionine (met) (val158met) polymorphism, which has been shown to moderate predisposition to negative mood and affective disorders, on brain structure and function in children. METHODS Voxel-based morphometry and functional magnetic resonance imaging were used to measure gray matter volume and emotional reactivity in 50 children aged between 10 and 12 years. We tested the hypothesis that met158 allele affects structural brain development and confers heightened reactivity within the affective frontolimbic circuit in children. RESULTS The met158 allele was positively associated with gray matter volume in the left hippocampal head where genotype accounted for 59% of interindividual variance. In addition, the met158 allele was positively associated with neuronal responses to fearful relative to neutral facial expressions in the right parahippocampal gyrus where genotype accounted for 14% of the interindividual variance. CONCLUSIONS These results indicate that the met158 allele is associated with increased gray matter volume and heightened reactivity during emotional processing within the limbic system in children as young as 10 to 12 years of age. These findings are consistent with the notion that genetic factors affect brain function to moderate vulnerability to affective psychopathology from childhood.
Collapse
Affiliation(s)
- Andrea Mechelli
- Department of Psychology, Institute of Psychiatry, PO Box 67, Division of Psychological Medicine and Psychiatry, King's College London, 103 Denmark Hill, London SE5 8AF, United Kingdom.
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Mechelli A, Stefania T, McGuire PK, Prata D, Sartori G, Fusar-Poli P, De Brito S, Hariri AR, Viding E. Genetic Vulnerability to Affective Psychopathology in Childhood: a Combined VBM and fMRI study. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70429-x] [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
|
33
|
Prata D, Breen G, Osborne S, Munro J, St Clair D, Collier D. Association of DAO and G72(DAOA)/G30 genes with bipolar affective disorder. Am J Med Genet B Neuropsychiatr Genet 2008; 147B:914-7. [PMID: 18165970 DOI: 10.1002/ajmg.b.30682] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [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: 01/22/2023]
Abstract
There is growing evidence of partial aetiological overlap between schizophrenia and bipolar disorder (BP) from linkage analysis, genetic epidemiology and molecular genetics studies. In the present study we investigated whether individual polymorphisms or haplotypes of the DAO and G72(DAOA)/G30 genes, which have been previously implicated in schizophrenia, are also associated with bipolar disorder. For each gene, we genotyped 213 cases and 197 controls for SNPs previously associated with schizophrenia: rs2111902 (MDAAO-4), rs3918346 (MDAAO-5), rs3741775 (MDAAO-6) and rs3918347 (MDAAO-7) in DAO and rs746187 (M7), rs3916966 (M13), rs2391191 (M15) and rs3916972 (M25) in G72. Although none of the individual SNPs in these genes reached statistical significance, we found haplotype wise associations with bipolar disorder for both genes. These included a two-SNP haplotype in DAO (rs2111902-A and rs3918346-T; global P = 0.003, individual P = 0.002, Z = 3.1) and a two-SNP haplotype for G72(DAOA)/G30 (rs746187-G and rs3916972-G; global P = 0.05; individual P = 0.005, Z = 2.81). However, we found no evidence for an epistatic interaction between the SNPs and/or haplotypes of the two genes. In summary, our findings provide some support for the individual involvement of DAO and G72(DAOA)/G30 in the etiology of bipolar disorder.
Collapse
Affiliation(s)
- Diana Prata
- Social Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, London, UK
| | | | | | | | | | | |
Collapse
|
34
|
Lezmi S, Toussaint Y, Prata D, Lejeune T, Ferreira-Neves P, Rakotovao F, Fontaine JJ, Marchal T, Cordonnier N. Severe Necrotizing Encephalitis in a Yorkshire Terrier: Topographic and Immunohistochemical Study. ACTA ACUST UNITED AC 2007; 54:186-90. [PMID: 17493164 DOI: 10.1111/j.1439-0442.2007.00925.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Necrotizing encephalitis of the Yorkshire terrier is a chronic non-suppurative encephalitis that was reported in approximately 15 cases worldwide. We report the case of a 10-year-old female Yorkshire terrier with gross evidence of severe cortical degeneration and necrosis. Microscopically, affected areas were mainly located in the cortical white matter and in the mesencephalon without implication of the cerebellum. Cavitation necrosis, demyelination, gemistocytic astrocytosis, marked perivascular lymphocytic cuffing with a diffuse lymphocytic/histiocytic/gitter cell infiltration characterized the lesions. Immunohistochemical analysis identified the major infiltration of T lymphocytes and macrophages with implication of some cytotoxic lymphocytes and IgG-producing plasma cells; depositions of IgG in the affected white matter were also observed. Specific stains did not reveal fungal, protozoal or bacterial organisms and reverse transcriptase-polymerase chain reaction analysis for distemper virus was also negative. The lympho-histiocytic inflammation suggests a T-cell-mediated and a delayed-type immune reaction as a possible pathogenic mechanism for this brain disorder.
Collapse
Affiliation(s)
- S Lezmi
- Ecole Nationale Vétérinaire d'Alfort, Unité d'Anatomie Pathologique, 7 avenue du Général de Gaulle, 94704 Maisons Alfort, France
| | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Breen G, Prata D, Osborne S, Munro J, Sinclair M, Li T, Staddon S, Dempster D, Sainz R, Arroyo B, Kerwin RW, St Clair D, Collier D. Association of the dysbindin gene with bipolar affective disorder. Am J Psychiatry 2006; 163:1636-8. [PMID: 16946192 DOI: 10.1176/ajp.2006.163.9.1636] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE In the study of bipolar affective disorder and schizophrenia, there is some evidence suggesting a phenotypic and genetic overlap between the two disorders. A possible link between bipolar affective disorder and schizophrenia remains arguable, however. The authors hypothesized that dysbindin, which is a probable susceptibility gene for schizophrenia, was associated with bipolar affective disorder and tested this hypothesis using a case-control design study. METHOD Participants included 213 patients with bipolar I disorder and 197 comparison subjects. In each subject, 10 polymorphisms in the dysbindin gene were genotyped and assessed. RESULTS Two polymorphisms showed individual genotypic association with bipolar I disorder. Multiple marker haplotypes were more strongly associated, with the rarer of the two common haplotypes being overrepresented in the patients with bipolar affective disorder. A similar finding was reported in patients with schizophrenia in a previous study. CONCLUSIONS Findings suggest that the human dysbindin gene may play a role in the susceptibility to bipolar affective disorder, which underscores a potentially important area of etiological overlap with schizophrenia. The existence of shared genetic risk factors will, in time, lead to changes in the current nosology of major psychoses.
Collapse
Affiliation(s)
- Gerome Breen
- Section of Molecular Genetics, Division of Psychological Medicine, Institute of Psychiatry, London, UK
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|