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Jüllig AK, Hebib S, Metzker H, Gruber E, Gruber O. Task-induced deactivation dysfunction during reward processing is associated with low self-esteem in a possible subtype of major depression. Brain Behav 2024; 14:e3545. [PMID: 38873863 DOI: 10.1002/brb3.3545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 04/10/2024] [Accepted: 05/02/2024] [Indexed: 06/15/2024] Open
Abstract
INTRODUCTION Low self-esteem is a frequent symptom in major depressive disorder (MDD). This functional magnetic resonance imaging study investigated whether MDD patients with low self-esteem show a distinct neural pathophysiology. Previous studies linked low self-esteem to reduced task-induced deactivation of the pregenual anterior cingulate cortex (pgACC) as a part of the default mode network, and to reduced connectivity between pgACC and reward system. Goya-Maldonado et al. identified an MDD subtype with pgACC and ventral striatal overactivations during reward processing. We hypothesized that this subtype might be characterized by low self-esteem. METHODS Eighty-three MDD patients performed the desire-reason dilemma task and completed the Rosenberg Self-Esteem Scale (RSES). Brain activity during bottom-up reward processing was regressed upon the RSES scores, controlling for depression severity measured by the Montgomery-Åsberg Depression Rating Scale. To corroborate the findings, we compared self-esteem scores between patient subgroups with impaired task-induced deactivation (n = 31) and with preserved task-induced deactivation (n = 31) of the pgACC. RESULTS Consistent with our a priori hypothesis, activity in a bilateral fronto-striatal network including pgACC and ventral striatum correlated negatively with RSES scores, also when controlling for depression severity. In the additional analysis, patients with impaired task-induced pgACC deactivation showed lower self-esteem (t (52.82) = -2.27; p = .027, d = 0.58) compared to those with preserved task-induced pgACC deactivation. CONCLUSIONS We conclude that low self-esteem in MDD patients is linked to a task-induced deactivation dysfunction of the pgACC. Our findings suggest that a previously described possible subtype of MDD with pgACC and ventral striatal overactivations during reward processing is clinically characterized by low self-esteem.
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Affiliation(s)
- Antonia K Jüllig
- Section for Experimental Psychopathology and Neuroimaging, Department of General Psychiatry, University Hospital Heidelberg, Heidelberg, Germany
| | - Sandi Hebib
- Section for Experimental Psychopathology and Neuroimaging, Department of General Psychiatry, University Hospital Heidelberg, Heidelberg, Germany
| | - Helena Metzker
- Section for Experimental Psychopathology and Neuroimaging, Department of General Psychiatry, University Hospital Heidelberg, Heidelberg, Germany
| | - Eva Gruber
- Section for Experimental Psychopathology and Neuroimaging, Department of General Psychiatry, University Hospital Heidelberg, Heidelberg, Germany
| | - Oliver Gruber
- Section for Experimental Psychopathology and Neuroimaging, Department of General Psychiatry, University Hospital Heidelberg, Heidelberg, Germany
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Wang X, Zhang Y, Huang J, Wang Y, Niu Y, Lui SSY, Hui L, Chan RCK. Revisiting reward impairments in schizophrenia spectrum disorders: a systematic review and meta-analysis for neuroimaging findings. Psychol Med 2023; 53:7189-7202. [PMID: 36994747 DOI: 10.1017/s0033291723000703] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
BACKGROUND Abnormal reward functioning is central to anhedonia and amotivation symptoms of schizophrenia (SCZ). Reward processing encompasses a series of psychological components. This systematic review and meta-analysis examined the brain dysfunction related to reward processing of individuals with SCZ spectrum disorders and risks, covering multiple reward components. METHODS After a systematic literature search, 37 neuroimaging studies were identified and divided into four groups based on their target psychology components (i.e. reward anticipation, reward consumption, reward learning, effort computation). Whole-brain Seed-based d Mapping (SDM) meta-analyses were conducted for all included studies and each component. RESULTS The meta-analysis for all reward-related studies revealed reduced functional activation across the SCZ spectrum in the striatum, orbital frontal cortex, cingulate cortex, and cerebellar areas. Meanwhile, distinct abnormal patterns were found for reward anticipation (decreased activation of the cingulate cortex and striatum), reward consumption (decreased activation of cerebellum IV/V areas, insula and inferior frontal gyri), and reward learning processing (decreased activation of the striatum, thalamus, cerebellar Crus I, cingulate cortex, orbitofrontal cortex, and parietal and occipital areas). Lastly, our qualitative review suggested that decreased activation of the ventral striatum and anterior cingulate cortex was also involved in effort computation. CONCLUSIONS These results provide deep insights on the component-based neuro-psychopathological mechanisms for anhedonia and amotivation symptoms of the SCZ spectrum.
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Affiliation(s)
- Xuan Wang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Yinghao Zhang
- Division of Psychology and Language Sciences, University College London, London, UK
| | - Jia Huang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Yi Wang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Yanzhe Niu
- Department of Psychology, University of California, San Diego, La Jolla, USA
| | - Simon S Y Lui
- Department of Psychiatry, School of Clinical Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Li Hui
- Research Center of Biological Psychiatry, Suzhou Guangji Hospital, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Raymond C K Chan
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
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3
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Cao X, Li Q, Liu S, Li Z, Wang Y, Cheng L, Yang C, Xu Y. Enhanced Resting-State Functional Connectivity of the Nucleus Accumbens in First-Episode, Medication-Naïve Patients With Early Onset Schizophrenia. Front Neurosci 2022; 16:844519. [PMID: 35401094 PMCID: PMC8990232 DOI: 10.3389/fnins.2022.844519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 02/01/2022] [Indexed: 01/10/2023] Open
Abstract
There is abundant evidence that early onset schizophrenia (EOS) is associated with abnormalities in widespread regions, including the cortical, striatal, and limbic areas. As a main component of the ventral striatum, the nucleus accumbens (NAc) is implicated in the pathology of schizophrenia. However, functional connection patterns of NAc in patients with schizophrenia, especially EOS, are seldom explored. A total of 78 first-episode, medication-naïve patients with EOS and 90 healthy controls were recruited in the present study, and resting-state, seed-based functional connectivity (FC) analyses were performed to investigate temporal correlations between NAc and the rest of the brain in the two groups. Additionally, correlation analyses were done between regions showing group differences in NAc functional integration and clinical features of EOS. Group comparison found enhanced FC of the NAc in the EOS group relative to the HCs with increased FC in the right superior temporal gyrus and left superior parietal gyrus with the left NAc region of interest (ROI) and elevated FC in left middle occipital gyrus with the right NAc ROI. No significant associations were found between FC strength and symptom severity as well as the age of the patients. Our findings reveal abnormally enhanced FC of the NAc with regions located in the temporal, parietal, and occipital areas, which were implicated in auditory/visual processing, sensorimotor integration, and cognitive functions. The results suggest disturbed relationships between regions subserving reward, salience processing, and regions subserving sensory processing as well as cognitive functions, which may deepen our understanding of the role of NAc in the pathology of EOS.
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Affiliation(s)
- Xiaohua Cao
- Department of Psychiatry, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Qiang Li
- Shanxi Provincial Corps Hospital of Chinese People’s Armed Police Force, Taiyuan, China
| | - Sha Liu
- Department of Psychiatry, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, China
- Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Zexuan Li
- Shanxi Key Laboratory of Artificial Intelligence Assisted Diagnosis and Treatment for Mental Disorder, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Yanfang Wang
- Department of Psychiatry, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Long Cheng
- Department of Psychiatry, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Chengxiang Yang
- Department of Psychiatry, Shanxi Bethune Hospital, Taiyuan, China
| | - Yong Xu
- Department of Psychiatry, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, China
- Department of Mental Health, Shanxi Medical University, Taiyuan, China
- Shanxi Provincial Key Laboratory of Brain Science and Neuropsychiatric Diseases, Taiyuan, China
- *Correspondence: Yong Xu, ;
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4
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Guo H, Xiao Y, Sun D, Yang J, Wang J, Wang H, Pan C, Li C, Zhao P, Zhang Y, Wu J, Zhang X, Wang F. Early-Stage Repetitive Transcranial Magnetic Stimulation Altered Posterior-Anterior Cerebrum Effective Connectivity in Methylazoxymethanol Acetate Rats. Front Neurosci 2021; 15:652715. [PMID: 34093113 PMCID: PMC8176023 DOI: 10.3389/fnins.2021.652715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/29/2021] [Indexed: 11/13/2022] Open
Abstract
The aim of the current resting-state functional magnetic resonance imaging (fMRI) study was to investigate the potential mechanism of schizophrenia through the posterior-anterior cerebrum imbalance in methylazoxymethanol acetate (MAM) rats and to evaluate the effectiveness of repetitive transcranial magnetic stimulation (rTMS) as an early-stage intervention. The rats were divided into four groups: the MAM-sham group, vehicle-sham group, MAM-rTMS group, and vehicle-rTMS group. The rTMS treatment was targeted in the visual cortex (VC) in adolescent rats. Granger Causality Analysis (GCA) was used to evaluate the effective connectivity between regions of interest. Results demonstrated a critical right VC-nucleus accumbens (Acb)-orbitofrontal cortex (OFC) pathway in MAM rats; significant differences of effective connectivity (EC) were found between MAM-sham and vehicle-sham groups (from Acb shell to OFC: t = -2.553, p = 0.021), MAM-rTMS and MAM-sham groups (from VC to Acb core: t = -2.206, p = 0.043; from Acb core to OFC: t = 4.861, p < 0.001; from Acb shell to OFC: t = 4.025, p = 0.001), and MAM-rTMS and vehicle-rTMS groups (from VC to Acb core: t = -2.482, p = 0.025; from VC to Acb shell: t = -2.872, p = 0.012; from Acb core to OFC: t = 4.066, p = 0.001; from Acb shell to OFC: t = 3.458, p = 0.004) in the right hemisphere. Results of the early-stage rTMS intervention revealed that right nucleus accumbens played the role as a central hub, and VC was a potentially novel rTMS target region during adolescent schizophrenia. Moreover, the EC of right nucleus accumbens shell and orbitofrontal cortex was demonstrated to be a potential biomarker. To our knowledge, this was the first resting-state fMRI study using GCA to assess the deficits of a visual-reward neural pathway and the effectiveness of rTMS treatment in MAM rats. More randomized controlled trials in both animal models and schizophrenia patients are needed to further elucidate the disease characteristics.
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Affiliation(s)
- Huiling Guo
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China.,Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, China.,Functional Brain Imaging Institute of Nanjing Medical University, Nanjing, China
| | - Yao Xiao
- Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, China.,Functional Brain Imaging Institute of Nanjing Medical University, Nanjing, China.,Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Dandan Sun
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jingyu Yang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China.,Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, China.,Functional Brain Imaging Institute of Nanjing Medical University, Nanjing, China
| | - Jie Wang
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan, China
| | - Huaning Wang
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Chunyu Pan
- Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, China.,Functional Brain Imaging Institute of Nanjing Medical University, Nanjing, China.,School of Computer Science and Engineering, Northeastern University, Shenyang, China
| | - Chao Li
- Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Pengfei Zhao
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yanbo Zhang
- Department of Psychiatry, Faculty of Medicine and Dentistry, The Neuroscience and Mental Health Institute (NMHI), University of Alberta, Alberta, AB, Canada
| | - Jinfeng Wu
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan, China
| | - Xizhe Zhang
- School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, China.,Nanjing Brain Hospital, Nanjing Medical University, Nanjing, China
| | - Fei Wang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China.,Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, China.,Functional Brain Imaging Institute of Nanjing Medical University, Nanjing, China
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Hayes J, Laursen B, Eneberg E, Kehler J, Rasmussen LK, Langgard M, Bastlund JF, Gerdjikov TV. Phosphodiesterase type 1 inhibition alters medial prefrontal cortical activity during goal-driven behaviour and partially reverses neurophysiological deficits in the rat phencyclidine model of schizophrenia. Neuropharmacology 2021; 186:108454. [PMID: 33444639 DOI: 10.1016/j.neuropharm.2021.108454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 11/27/2020] [Accepted: 01/04/2021] [Indexed: 10/22/2022]
Abstract
Positive modulation of cAMP signalling by phosphodiesterase (PDE) inhibitors has recently been explored as a potential target for the reversal of cognitive and behavioural deficits implicating the corticoaccumbal circuit. Previous studies show that PDE type 1 isoform B (PDE1B) inhibition may improve memory function in rodent models; however, the contribution of PDE1B inhibition to impulsivity, attentional and motivational functions as well as its neurophysiological effects have not been investigated. To address this, we recorded single unit activity in medial prefrontal cortex (mPFC) and nucleus accumbens (NAc) in Lister Hooded rats treated with the PDE1B inhibitor Lu AF64386 and tested in the 5-choice serial reaction time task (5-CSRTT). We also asked whether PDE1B inhibition modulates neurophysiological deficits produced by subchronic phencyclidine (PCP) treatment, a rat pharmacological model of schizophrenia. Lu AF64386 significantly affected behavioural parameters consistent with a reduction in goal-directed behaviour, however without affecting accuracy. Additionally, it reduced mPFC neuronal activity. Pre-treatment with PCP did not affect behavioural parameters, however it significantly disrupted overall neuronal firing while increasing phasic responses to reward-predicting cues and disrupting mPFC-NAc cross-talk. The latter two effects were reversed by Lu AF64386. These findings suggest PDE1B inhibition may be beneficial in disorders implicating a dysfunction of the mPFC-NAc network.
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Affiliation(s)
- Jessica Hayes
- Department of Neuroscience, Psychology and Behaviour, University of Leicester, United Kingdom
| | | | | | - Jan Kehler
- Molecular Discovery and Innovation, Lundbeck A/S, Denmark
| | | | | | | | - Todor V Gerdjikov
- Department of Neuroscience, Psychology and Behaviour, University of Leicester, United Kingdom.
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6
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Nakamura Y, Okada N, Koshiyama D, Kamiya K, Abe O, Kunimatsu A, Okanoya K, Kasai K, Koike S. Differences in Functional Connectivity Networks Related to the Midbrain Dopaminergic System-Related Area in Various Psychiatric Disorders. Schizophr Bull 2020; 46:1239-1248. [PMID: 31901932 PMCID: PMC7505191 DOI: 10.1093/schbul/sbz121] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Disruptions in the dopamine system have been observed in psychiatric disorders. Since dopamine is mainly produced in the ventral tegmental area (VTA), elucidating the differences in the VTA neural network across psychiatric disorders would facilitate a greater understanding of the pathophysiological mechanisms underlying these disorders. However, no study has compared VTA-seed-based functional connectivity across psychiatric disorders. Therefore, we conducted a resting-state functional magnetic resonance imaging (rs-fMRI) study to perform a seed-based fMRI analysis, using the VTA as a seed. METHODS We included participants with major depressive disorder (MDD; n = 45), schizophrenia (n = 32), and bipolar disorder (BPD; n = 30), along with healthy control participants (n = 46) who were matched for age, gender, and handedness. RESULTS The results showed that patients with MDD and BPD had altered VTA-related connectivity in the superior frontal gyrus, frontal pole regions, hippocampus, cerebellum, and posterior cingulate cortex. Some of these differences in connectivity were also found between affective disorders and schizophrenia; however, there were no differences between the schizophrenia and control groups. Connectivity between the VTA and the hippocampus was correlated with positive symptoms in the schizophrenia group. The connectivity was not associated with medication dose, and the results remained significant after controlling for dose. CONCLUSIONS The results suggest that altered brain functional connectivity related to VTA networks could be associated with the distinctive pathophysiologies of psychiatric disorders, especially affective disorders.
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Affiliation(s)
- Yuko Nakamura
- Center for Integrative Science of Human Behavior, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
- Center for Evolutionary Cognitive Science at the University of Tokyo, Tokyo, Japan
| | - Naohiro Okada
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- International Research Center for Neurointelligence (WPI-IRCN), UTIAS, The University of Tokyo, Tokyo, Japan
| | - Daisuke Koshiyama
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kouhei Kamiya
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Osamu Abe
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Akira Kunimatsu
- Department of Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Radiology, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kazuo Okanoya
- Center for Integrative Science of Human Behavior, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
- Center for Evolutionary Cognitive Science at the University of Tokyo, Tokyo, Japan
- International Research Center for Neurointelligence (WPI-IRCN), UTIAS, The University of Tokyo, Tokyo, Japan
- University of Tokyo Institute for Diversity & Adaptation of Human Mind (UTIDAHM), Tokyo, Japan
| | - Kiyoto Kasai
- Center for Integrative Science of Human Behavior, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
- Center for Evolutionary Cognitive Science at the University of Tokyo, Tokyo, Japan
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- International Research Center for Neurointelligence (WPI-IRCN), UTIAS, The University of Tokyo, Tokyo, Japan
- University of Tokyo Institute for Diversity & Adaptation of Human Mind (UTIDAHM), Tokyo, Japan
| | - Shinsuke Koike
- Center for Integrative Science of Human Behavior, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
- Center for Evolutionary Cognitive Science at the University of Tokyo, Tokyo, Japan
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- International Research Center for Neurointelligence (WPI-IRCN), UTIAS, The University of Tokyo, Tokyo, Japan
- University of Tokyo Institute for Diversity & Adaptation of Human Mind (UTIDAHM), Tokyo, Japan
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7
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McTeague LM, Rosenberg BM, Lopez JW, Carreon DM, Huemer J, Jiang Y, Chick CF, Eickhoff SB, Etkin A. Identification of Common Neural Circuit Disruptions in Emotional Processing Across Psychiatric Disorders. Am J Psychiatry 2020; 177:411-421. [PMID: 31964160 PMCID: PMC7280468 DOI: 10.1176/appi.ajp.2019.18111271] [Citation(s) in RCA: 157] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Disrupted emotional processing is a common feature of many psychiatric disorders. The authors investigated functional disruptions in neural circuitry underlying emotional processing across a range of tasks and across psychiatric disorders through a transdiagnostic quantitative meta-analysis of published neuroimaging data. METHODS A PubMed search was conducted for whole-brain functional neuroimaging findings published through May 2018 that compared activation during emotional processing tasks in patients with psychiatric disorders (including schizophrenia, bipolar or unipolar depression, anxiety, and substance use) to matched healthy control participants. Activation likelihood estimation (ALE) meta-analyses were conducted on peak voxel coordinates to identify spatial convergence. RESULTS The 298 experiments submitted to meta-analysis included 5,427 patients and 5,491 control participants. ALE across diagnoses and patterns of patient hyper- and hyporeactivity demonstrated abnormal activation in the amygdala, the hippocampal/parahippocampal gyri, the dorsomedial/pulvinar nuclei of the thalamus, and the fusiform gyri, as well as the medial and lateral dorsal and ventral prefrontal regions. ALE across disorders but considering directionality demonstrated patient hyperactivation in the amygdala and the hippocampal/parahippocampal gyri. Hypoactivation was found in the medial and lateral prefrontal regions, most pronounced during processing of unpleasant stimuli. More refined disorder-specific analyses suggested that these overall patterns were shared to varying degrees, with notable differences in patterns of hyper- and hypoactivation. CONCLUSIONS These findings demonstrate a pattern of neurocircuit disruption across major psychiatric disorders in regions and networks key to adaptive emotional reactivity and regulation. More specifically, disruption corresponded prominently to the "salience" network, the ventral striatal/ventromedial prefrontal "reward" network, and the lateral orbitofrontal "nonreward" network. Consistent with the Research Domain Criteria initiative, these findings suggest that psychiatric illness may be productively formulated as dysfunction in transdiagnostic neurobehavioral phenotypes such as neurocircuit activation.
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Affiliation(s)
- Lisa M McTeague
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston (McTeague, Lopez); Department of Psychology, University of California, Los Angeles (Rosenberg); Department of Psychiatry and Behavioral Sciences and Wu Tsai Neurosciences Institute, Stanford University, Stanford, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); Veterans Affairs Palo Alto Health Care System and the Sierra Pacific Mental Illness Research, Education, and Clinical Center, Palo Alto, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); and Medical University of Vienna, Vienna, Institute for Neuroscience and Medicine (Brain and Behavior, INM-7), Research Center Jülich, Jülich, Germany, and Institute for Systems Neuroscience, School of Medicine, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany (Eickhoff)
| | - Benjamin M Rosenberg
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston (McTeague, Lopez); Department of Psychology, University of California, Los Angeles (Rosenberg); Department of Psychiatry and Behavioral Sciences and Wu Tsai Neurosciences Institute, Stanford University, Stanford, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); Veterans Affairs Palo Alto Health Care System and the Sierra Pacific Mental Illness Research, Education, and Clinical Center, Palo Alto, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); and Medical University of Vienna, Vienna, Institute for Neuroscience and Medicine (Brain and Behavior, INM-7), Research Center Jülich, Jülich, Germany, and Institute for Systems Neuroscience, School of Medicine, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany (Eickhoff)
| | - James W Lopez
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston (McTeague, Lopez); Department of Psychology, University of California, Los Angeles (Rosenberg); Department of Psychiatry and Behavioral Sciences and Wu Tsai Neurosciences Institute, Stanford University, Stanford, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); Veterans Affairs Palo Alto Health Care System and the Sierra Pacific Mental Illness Research, Education, and Clinical Center, Palo Alto, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); and Medical University of Vienna, Vienna, Institute for Neuroscience and Medicine (Brain and Behavior, INM-7), Research Center Jülich, Jülich, Germany, and Institute for Systems Neuroscience, School of Medicine, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany (Eickhoff)
| | - David M Carreon
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston (McTeague, Lopez); Department of Psychology, University of California, Los Angeles (Rosenberg); Department of Psychiatry and Behavioral Sciences and Wu Tsai Neurosciences Institute, Stanford University, Stanford, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); Veterans Affairs Palo Alto Health Care System and the Sierra Pacific Mental Illness Research, Education, and Clinical Center, Palo Alto, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); and Medical University of Vienna, Vienna, Institute for Neuroscience and Medicine (Brain and Behavior, INM-7), Research Center Jülich, Jülich, Germany, and Institute for Systems Neuroscience, School of Medicine, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany (Eickhoff)
| | - Julia Huemer
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston (McTeague, Lopez); Department of Psychology, University of California, Los Angeles (Rosenberg); Department of Psychiatry and Behavioral Sciences and Wu Tsai Neurosciences Institute, Stanford University, Stanford, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); Veterans Affairs Palo Alto Health Care System and the Sierra Pacific Mental Illness Research, Education, and Clinical Center, Palo Alto, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); and Medical University of Vienna, Vienna, Institute for Neuroscience and Medicine (Brain and Behavior, INM-7), Research Center Jülich, Jülich, Germany, and Institute for Systems Neuroscience, School of Medicine, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany (Eickhoff)
| | - Ying Jiang
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston (McTeague, Lopez); Department of Psychology, University of California, Los Angeles (Rosenberg); Department of Psychiatry and Behavioral Sciences and Wu Tsai Neurosciences Institute, Stanford University, Stanford, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); Veterans Affairs Palo Alto Health Care System and the Sierra Pacific Mental Illness Research, Education, and Clinical Center, Palo Alto, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); and Medical University of Vienna, Vienna, Institute for Neuroscience and Medicine (Brain and Behavior, INM-7), Research Center Jülich, Jülich, Germany, and Institute for Systems Neuroscience, School of Medicine, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany (Eickhoff)
| | - Christina F Chick
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston (McTeague, Lopez); Department of Psychology, University of California, Los Angeles (Rosenberg); Department of Psychiatry and Behavioral Sciences and Wu Tsai Neurosciences Institute, Stanford University, Stanford, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); Veterans Affairs Palo Alto Health Care System and the Sierra Pacific Mental Illness Research, Education, and Clinical Center, Palo Alto, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); and Medical University of Vienna, Vienna, Institute for Neuroscience and Medicine (Brain and Behavior, INM-7), Research Center Jülich, Jülich, Germany, and Institute for Systems Neuroscience, School of Medicine, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany (Eickhoff)
| | - Simon B Eickhoff
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston (McTeague, Lopez); Department of Psychology, University of California, Los Angeles (Rosenberg); Department of Psychiatry and Behavioral Sciences and Wu Tsai Neurosciences Institute, Stanford University, Stanford, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); Veterans Affairs Palo Alto Health Care System and the Sierra Pacific Mental Illness Research, Education, and Clinical Center, Palo Alto, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); and Medical University of Vienna, Vienna, Institute for Neuroscience and Medicine (Brain and Behavior, INM-7), Research Center Jülich, Jülich, Germany, and Institute for Systems Neuroscience, School of Medicine, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany (Eickhoff)
| | - Amit Etkin
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston (McTeague, Lopez); Department of Psychology, University of California, Los Angeles (Rosenberg); Department of Psychiatry and Behavioral Sciences and Wu Tsai Neurosciences Institute, Stanford University, Stanford, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); Veterans Affairs Palo Alto Health Care System and the Sierra Pacific Mental Illness Research, Education, and Clinical Center, Palo Alto, Calif. (Carreon, Huemer, Jiang, Chick, Etkin); and Medical University of Vienna, Vienna, Institute for Neuroscience and Medicine (Brain and Behavior, INM-7), Research Center Jülich, Jülich, Germany, and Institute for Systems Neuroscience, School of Medicine, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany (Eickhoff)
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8
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Leroy A, Amad A, D'Hondt F, Pins D, Jaafari N, Thomas P, Jardri R. Reward anticipation in schizophrenia: A coordinate-based meta-analysis. Schizophr Res 2020; 218:2-6. [PMID: 31948895 DOI: 10.1016/j.schres.2019.12.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 12/26/2019] [Accepted: 12/31/2019] [Indexed: 11/17/2022]
Abstract
Reward processing impairments have been linked with positive and negative symptoms of schizophrenia. Here, we performed a coordinate-based meta-analysis that combined eleven BOLD-fMRI studies comparing reward anticipation signals between schizophrenia patients and healthy controls. We observed a reduced difference in activation in schizophrenia patients within a frontal-striatal network. Meta-regressions revealed that this functional signature was linked to the severity of psychotic symptoms and persisted even after controlling for the dose of antipsychotic medications.
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Affiliation(s)
- Arnaud Leroy
- Univ. Lille, INSERM U1172, CHU Lille, Centre Lille Neuroscience & Cognition, F-59000 Lille, France; CHU Lille, Hôpital Fontan, plateforme CURE, F-59000 Lille, France.
| | - Ali Amad
- Univ. Lille, INSERM U1172, CHU Lille, Centre Lille Neuroscience & Cognition, F-59000 Lille, France; CHU Lille, Hôpital Fontan, plateforme CURE, F-59000 Lille, France; Groupement De Recherche en Psychiatrie CNRS-3557, France
| | - Fabien D'Hondt
- Univ. Lille, INSERM U1172, CHU Lille, Centre Lille Neuroscience & Cognition, F-59000 Lille, France; CHU Lille, Hôpital Fontan, plateforme CURE, F-59000 Lille, France; Centre national de ressources et de résilience Lille-Paris (CN2R), Lille, France
| | - Delphine Pins
- Univ. Lille, INSERM U1172, CHU Lille, Centre Lille Neuroscience & Cognition, F-59000 Lille, France; CHU Lille, Hôpital Fontan, plateforme CURE, F-59000 Lille, France; Groupement De Recherche en Psychiatrie CNRS-3557, France
| | - Nematollah Jaafari
- Groupement De Recherche en Psychiatrie CNRS-3557, France; Unité de Recherche Clinique Intersectorielle en Psychiatrie Pierre Deniker, Centre Hospitalier Henri Laborit, 86021 Poitiers, France; Univ. Poitiers & CHU Poitiers, INSERM U1084, Laboratoire Expérimental et Clinique en Neurosciences, 86021 Poitiers, France
| | - Pierre Thomas
- Univ. Lille, INSERM U1172, CHU Lille, Centre Lille Neuroscience & Cognition, F-59000 Lille, France; CHU Lille, Hôpital Fontan, plateforme CURE, F-59000 Lille, France; Groupement De Recherche en Psychiatrie CNRS-3557, France
| | - Renaud Jardri
- Univ. Lille, INSERM U1172, CHU Lille, Centre Lille Neuroscience & Cognition, F-59000 Lille, France; CHU Lille, Hôpital Fontan, plateforme CURE, F-59000 Lille, France; Groupement De Recherche en Psychiatrie CNRS-3557, France
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9
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Richter A, Krämer B, Diekhof EK, Gruber O. Resilience to adversity is associated with increased activity and connectivity in the VTA and hippocampus. NEUROIMAGE-CLINICAL 2019; 23:101920. [PMID: 31491818 PMCID: PMC6617249 DOI: 10.1016/j.nicl.2019.101920] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/29/2019] [Accepted: 06/30/2019] [Indexed: 11/18/2022]
Abstract
Accumulating evidence suggests altered function of the mesolimbic reward system resulting from exposure to early adversity. The present study investigated the combined long-term impact of adversity until young adulthood on neuronal reward processing and its interaction with individual resilience processes. In this functional magnetic resonance imaging study, 97 healthy young adults performed a reward-based decision-making task. Adversity as well as resilience were assessed retrospectively using the validated childhood trauma questionnaire, trauma history questionnaire and a resilience scale. Subjects with high adversity load showed reduced reward-related bottom-up activation in the ventral striatum (VS), ventral tegmental area (VTA) and hippocampus (HP) as compared to the low adversity group. However, high resilience traits in individuals with high adversity load were associated with an increased activation in the VTA and HP, indicating a possible resilience-related protective mechanism. Moreover, when comparing groups with high to low adversity, psychophysiological interaction analyses highlighted an increased negative functional coupling between VS and VTA as well as between VS and anteroventral prefrontal cortex (avPFC) during reward acceptance, and an impaired top-down control of the VS by the avPFC during reward rejection. In turn, combination of high adversity and high resilience traits was associated with an improved functional coupling between VTA, VS and HP. Thereby, the present findings identify neural mechanisms mediating interacting effects of adversity and resilience, which could be targeted by early intervention and prevention. fMRI activity in the reward system decresead with adversity load. Stress exposure associated with impaired connectivity in the reward system. fMRI activity in VTA and hippocampus incresead with resilience to adversity. Functional coupling within reward circuitry improved with resilience to adversity. Evidence for protective resilience-related mechanisms mediated by VTA & hippocampus.
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Affiliation(s)
- Anja Richter
- Section for Experimental Psychopathology and Neuroimaging, Department of General Psychiatry, Heidelberg University, Germany; Center for Translational Research in Systems Neuroscience and Psychiatry, Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Germany; Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK.
| | - Bernd Krämer
- Section for Experimental Psychopathology and Neuroimaging, Department of General Psychiatry, Heidelberg University, Germany; Center for Translational Research in Systems Neuroscience and Psychiatry, Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Germany
| | - Esther K Diekhof
- Center for Translational Research in Systems Neuroscience and Psychiatry, Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Germany; Neuroendocrinology Unit, Institute of Zoology, Department of Biology, Faculty of Mathematics, Informatics and Natural Sciences, Universität Hamburg, Germany
| | - Oliver Gruber
- Section for Experimental Psychopathology and Neuroimaging, Department of General Psychiatry, Heidelberg University, Germany; Center for Translational Research in Systems Neuroscience and Psychiatry, Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, Germany
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10
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Tikàsz A, Dumais A, Lipp O, Stip E, Lalonde P, Laurelli M, Lungu O, Potvin S. Reward-related decision-making in schizophrenia: A multimodal neuroimaging study. Psychiatry Res Neuroimaging 2019; 286:45-52. [PMID: 30897449 DOI: 10.1016/j.pscychresns.2019.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 03/09/2019] [Accepted: 03/13/2019] [Indexed: 01/28/2023]
Abstract
Schizophrenia is a severe psychiatric disorder characterized by important cognitive deficits, which ultimately compromise the patients' ability to make optimal decisions. Unfortunately, the neurobiological bases of impaired reward-related decision-making in schizophrenia have rarely been studied. The objective of this study is to examine the neural mechanisms involved in reward-related decision-making in schizophrenia, using functional magnetic resonance imaging (fMRI). Forty-seven schizophrenia patients (DSM-IV criteria) and 23 healthy subjects with no psychiatric disorders were scanned using fMRI while performing the Balloon Analogue Risk Task (BART). A rapid event-related fMRI paradigm was used, separating decision and outcome events. Between-group differences in grey matter volumes were assessed with voxel-based morphometry. During the reward outcomes, increased activations were observed in schizophrenia in the left anterior insula, the putamen, and frontal sub-regions. Reduced grey matter volumes were observed in the left anterior insula in schizophrenia which spatially overlapped with functional alterations. Finally, schizophrenia patients made fewer gains on the BART. The fact that schizophrenia patients had increased activations in sub-cortical regions such as the striatum and insula in response to reward events suggests that the impaired decision-making abilities of these patients are mostly driven by an overvaluation of outcome stimuli.
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Affiliation(s)
- Andràs Tikàsz
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, 7331 Hochelaga, Montreal, Canada, H1N 3V2; Department of Psychiatry, University de Montréal, 2900 boulevard Édouard-Montpetit, Montreal, Canada, H3T 1J4; Institut Philippe-Pinel de Montréal, 10905 Henri-Bourassa, Montreal, Canada, H1C 1H1
| | - Alexandre Dumais
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, 7331 Hochelaga, Montreal, Canada, H1N 3V2; Department of Psychiatry, University de Montréal, 2900 boulevard Édouard-Montpetit, Montreal, Canada, H3T 1J4; Institut Philippe-Pinel de Montréal, 10905 Henri-Bourassa, Montreal, Canada, H1C 1H1
| | - Olivier Lipp
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, 7331 Hochelaga, Montreal, Canada, H1N 3V2; Department of Psychiatry, University de Montréal, 2900 boulevard Édouard-Montpetit, Montreal, Canada, H3T 1J4
| | - Emmanuel Stip
- Department of Psychiatry, University de Montréal, 2900 boulevard Édouard-Montpetit, Montreal, Canada, H3T 1J4; Centre Hospitalier de l'Université de Montréal, 1051 rue Sanguinet, Montreal, Canada, H2 × 3E4
| | - Pierre Lalonde
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, 7331 Hochelaga, Montreal, Canada, H1N 3V2; Department of Psychiatry, University de Montréal, 2900 boulevard Édouard-Montpetit, Montreal, Canada, H3T 1J4
| | - Mélanie Laurelli
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, 7331 Hochelaga, Montreal, Canada, H1N 3V2; Institut Philippe-Pinel de Montréal, 10905 Henri-Bourassa, Montreal, Canada, H1C 1H1
| | - Ovidiu Lungu
- Department of Psychiatry, University de Montréal, 2900 boulevard Édouard-Montpetit, Montreal, Canada, H3T 1J4; Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, 4565 Chemin Queen-Mary, Montreal, Canada, H3W 1W5; Centre for Research in Aging, Donald Berman Maimonides Geriatric Centre, 5795 Caldwell Avenue, Montreal, Canada, H4W 1W3
| | - Stéphane Potvin
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, 7331 Hochelaga, Montreal, Canada, H1N 3V2; Department of Psychiatry, University de Montréal, 2900 boulevard Édouard-Montpetit, Montreal, Canada, H3T 1J4.
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11
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Küçükerdönmez Ö, Urhan M, Altın M, Hacıraifoğlu Ö, Yıldız B. Assessment of the relationship between food addiction and nutritional status in schizophrenic patients. Nutr Neurosci 2017; 22:392-400. [PMID: 29078744 DOI: 10.1080/1028415x.2017.1392429] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Obesity is one of today's most important public health problems. It is suggested that overeating and substance addiction show similarities, and addiction to food may be an important factor in the obesity epidemic. This study aimed to determine the prevalence of food addiction among schizophrenic patients and to examine the relationship between food addiction and anthropometric measurements and dietary nutrient intake. METHODS Study participants included a total of 104 schizophrenic outpatients, 62 females and 42 males. Food addiction was assessed by using the Yale Food Addiction Scale, and the anthropometric measurements of participants and their three-day food consumption were recorded. RESULTS This study found that more than half of the schizophrenic patients (60.6%) had food addiction, and that female schizophrenic patients had a higher prevalence (62.9%) of food addiction than male patients (57.1%). More than one-third of the schizophrenic patients with food addiction (41.3%) were found to be obese and their BMI, body weight, waist circumference, and body-fat ratio were higher than those of schizophrenic patients who did not have food addiction (P > 0.05). Moreover, the schizophrenic patients with food addiction were found to take significantly more energy, carbohydrate, and fat in their diet (P < 0.05). CONCLUSION It was observed that the development of food addiction in schizophrenic patients increased the risk of obesity and cardiovascular diseases, which were found to be at higher levels in these patients. Educational programs should be planned for these patients to acquire health dietary habits and to increase their physical activity levels, and an additional psychosocial support should be provided for patients with food addiction.
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Affiliation(s)
- Özge Küçükerdönmez
- a Faculty of Health Sciences, Department of Nutrition and Dietetics , Ege University , İzmir , Turkey
| | - Murat Urhan
- b Mental Health and Diseases Hospital , Manisa , Turkey
| | - Merve Altın
- c Izmir Atatürk School of Health, Department of Nutrition and Dietetics , Ege University , Izmir , Turkey
| | - Özge Hacıraifoğlu
- c Izmir Atatürk School of Health, Department of Nutrition and Dietetics , Ege University , Izmir , Turkey
| | - Burak Yıldız
- c Izmir Atatürk School of Health, Department of Nutrition and Dietetics , Ege University , Izmir , Turkey
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12
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Asif-Malik A, Dautan D, Young AMJ, Gerdjikov TV. Altered cortico-striatal crosstalk underlies object recognition memory deficits in the sub-chronic phencyclidine model of schizophrenia. Brain Struct Funct 2017; 222:3179-3190. [PMID: 28293729 PMCID: PMC5585296 DOI: 10.1007/s00429-017-1393-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 02/22/2017] [Indexed: 11/29/2022]
Abstract
The neural mechanisms underlying cognitive deficits in schizophrenia are poorly understood. Sub-chronic treatment with the NMDA antagonist phencyclidine (PCP) produces cognitive abnormalities in rodents that reliably model aspects of the neurocognitive alterations observed in schizophrenia. Given that network activity across regions encompassing medial prefrontal cortex (mPFC) and nucleus accumbens (NAc) plays a significant role in motivational and cognitive tasks, we measured activity across cortico-striatal pathways in PCP-treated rats to characterize neural enabling and encoding of task performance in a novel object recognition task. We found that PCP treatment impaired task performance and concurrently (1) reduced tonic NAc neuronal activity, (2) desynchronized cross-activation of mPFC and NAc neurons, and (3) prevented the increase in mPFC and NAc neural activity associated with the exploration of a novel object in relation to a familiar object. Taken together, these observations reveal key neuronal and network-level adaptations underlying PCP-induced cognitive deficits, which may contribute to the emergence of cognitive abnormalities in schizophrenia.
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Affiliation(s)
- Aman Asif-Malik
- Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, LE1 9HN, UK
| | - Daniel Dautan
- Center for Molecular and Behavioral Neuroscience, Rutgers University, Newark, NJ, USA
| | - Andrew M J Young
- Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, LE1 9HN, UK
| | - Todor V Gerdjikov
- Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, LE1 9HN, UK.
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13
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Barakauskas VE, Moradian A, Barr AM, Beasley CL, Rosoklija G, Mann JJ, Ilievski B, Stankov A, Dwork AJ, Falkai P, Morin GB, Honer WG. Quantitative mass spectrometry reveals changes in SNAP-25 isoforms in schizophrenia. Schizophr Res 2016; 177:44-51. [PMID: 26971072 PMCID: PMC5017887 DOI: 10.1016/j.schres.2016.03.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 03/02/2016] [Accepted: 03/04/2016] [Indexed: 11/24/2022]
Abstract
SNAP-25 and syntaxin are presynaptic terminal SNARE proteins altered in amount and function in schizophrenia. In the ventral caudate, we observed 32% lower SNAP-25 and 26% lower syntaxin, but greater interaction between the two proteins using an in vitro assay. SNAP-25 has two isoforms, SNAP-25A and B, differing by only 9 amino acids, but with different effects on neurotransmission. A quantitative mass spectrometry assay was developed to measure total SNAP-25, and proportions of SNAP-25A and B. The assay had a good linear range (50- to 150-fold) and coefficient of variation (4.5%). We studied ventral caudate samples from patients with schizophrenia (n=15) previously reported to have lower total SNAP-25 than controls (n=13). We confirmed 27% lower total SNAP-25 in schizophrenia, and observed 31% lower SNAP-25A (P=0.002) with 20% lower SNAP-25B amounts (P=0.10). Lower SNAP-25A amount correlated with greater SNAP-25-syntaxin protein-protein interactions (r=-0.41, P=0.03); the level of SNAP-25B did not. Administration of haloperidol or clozapine to rats did not mimic the changes found in schizophrenia. The findings suggest that lower levels of SNAP-25 in schizophrenia may represent a greater effect of the illness on the SNAP-25A isoform. This in turn could contribute to the greater interaction between SNAP25 and syntaxin, and possibly disturb neurotransmission in the illness.
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Affiliation(s)
- Vilte E Barakauskas
- BC Mental Health and Addictions Research Institute, Vancouver, BC,Department of Psychiatry, University of British Columbia, Vancouver, BC
| | - Annie Moradian
- Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, BC
| | - Alasdair M. Barr
- BC Mental Health and Addictions Research Institute, Vancouver, BC,Department of Anesthesiology, Pharmacology & Therapeutics, University of British Columbia, Vancouver, BC
| | - Clare L Beasley
- BC Mental Health and Addictions Research Institute, Vancouver, BC,Department of Psychiatry, University of British Columbia, Vancouver, BC
| | - Gorazd Rosoklija
- Department of Molecular Imaging and Neuropathology, New York State Psychiatric Institute; and Department of Psychiatry, Columbia University, New York, NY, USA,Macedonian Academy of Sciences and Arts, University “SS. Cyril and Methodius,” Skopje, Macedonia
| | - J John Mann
- Department of Molecular Imaging and Neuropathology, New York State Psychiatric Institute; and Department of Psychiatry, Columbia University, New York, NY, USA
| | - Boro Ilievski
- Department of Molecular Imaging and Neuropathology, New York State Psychiatric Institute; and Department of Psychiatry, Columbia University, New York, NY, USA,Institute for Pathology, University “SS. Cyril and Methodius,” Skopje, Macedonia
| | - Aleksandar Stankov
- Institute of Forensic Medicine, Criminology and Medical Deontology, University “SS. Cyril and Methodius,” Skopje, Macedonia
| | - Andrew J Dwork
- Department of Molecular Imaging and Neuropathology, New York State Psychiatric Institute; and Department of Psychiatry, Columbia University, New York, NY, USA,Department of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Peter Falkai
- Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany
| | - Gregg B Morin
- Michael Smith Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, BC, Canada; Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada.
| | - William G Honer
- BC Mental Health and Addictions Research Institute, Vancouver, BC, Canada; Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada.
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