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Brandão-Teles C, Antunes ASLM, de Moraes Vrechi TA, Martins-de-Souza D. The Roles of hnRNP Family in the Brain and Brain-Related Disorders. Mol Neurobiol 2024; 61:3578-3595. [PMID: 37999871 DOI: 10.1007/s12035-023-03747-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/25/2023] [Indexed: 11/25/2023]
Abstract
Heterogeneous nuclear ribonucleoproteins (hnRNPs) belong to a complex family of RNA-binding proteins that are essential to control alternative splicing, mRNA trafficking, synaptic plasticity, stress granule formation, cell cycle regulation, and axonal transport. Over the past decade, hnRNPs have been associated with different brain disorders such as Alzheimer's disease, multiple sclerosis, and schizophrenia. Given their essential role in maintaining cell function and integrity, it is not surprising that dysregulated hnRNP levels lead to neurological implications. This review aims to explore the primary functions of hnRNPs in neurons, oligodendrocytes, microglia, and astrocytes, and their roles in brain disorders. We also discuss proteomics and other technologies and their potential for studying and evaluating hnRNPs in brain disorders, including the discovery of new therapeutic targets and possible pharmacological interventions.
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Affiliation(s)
- Caroline Brandão-Teles
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil.
| | - André S L M Antunes
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Talita Aparecida de Moraes Vrechi
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Daniel Martins-de-Souza
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil.
- D'Or Institute for Research and Education (IDOR), São Paulo, Brazil.
- Experimental Medicine Research Cluster (EMRC), University of Campinas, Campinas, SP, 13083-862, Brazil.
- INCT in Modelling Human Complex Diseases with 3D Platforms (Model3D), São Paulo, Brazil.
- Conselho Nacional de Desenvolvimento Científico e Tecnológico, Instituto Nacional de Biomarcadores em Neuropsiquiatria, São Paulo, Brazil.
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Shi H, Zhang Y, Yang Y, Zhang H, Li W, Zhong Z, Lv L. Serum S100B protein and white matter changes in schizophrenia before and after medication. Brain Res Bull 2024; 210:110927. [PMID: 38485004 DOI: 10.1016/j.brainresbull.2024.110927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 03/11/2024] [Indexed: 03/23/2024]
Abstract
Schizophrenia patients have abnormalities in white matter (WM) integrity in brain regions. S100B has been shown to be a marker protein for glial cells. The atypical antipsychotics have neuroprotective effects on the brain. It is not clear whether antipsychotics can induce S100B changes and improve symptoms by protecting oligodendrocytes. To investigate WM and S100B changes and associations and determine the effect of quetiapine on WM and S100B in schizophrenia patients, we determined serum S100B levels with solid phase immunochromatography and fractional anisotropy(FA)values of 36 patients and 40 healthy controls. Patients exhibited significantly higher serum concentrations of S100B and decreased FA values in left postcentral,right superior frontal,right thalamus, and left inferior occipital gyrus, while higher in right temporal cortex WM compared with healthy controls. Following treatment with quetiapine, patients had decreased S100B and higher FA values in right cerebellum,right superior frontal,right thalamus, and left parietal cortex,and decreased FA values in right temporal cortex WM compared with pre-treatment values. Furthermore, S100B were negatively correlated with PANSS positive scores and positively correlated with FA values in the left postcentral cortex. In addition,the percentage change in FA values in the right temporal cortex was positively correlated with the percentage change in the S100B, percentage reduction in PANSS scores, and percentage reduction in PANSS-positive scores. Our findings demonstrated abnormalities in S100B and WM microstructure in patients with schizophrenia. These abnormalities may be partly reversed by quetiapine treatment.
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Affiliation(s)
- Han Shi
- Department of Psychiatry, Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry, Xinxiang Medical University, Xinxiang, China; International Joint Research Laboratory for Psychiatry and Neuroscience of Henan, Xinxiang, China
| | - Yan Zhang
- Department of Psychiatry, Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry, Xinxiang Medical University, Xinxiang, China; International Joint Research Laboratory for Psychiatry and Neuroscience of Henan, Xinxiang, China
| | - Yongfeng Yang
- Department of Psychiatry, Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry, Xinxiang Medical University, Xinxiang, China; International Joint Research Laboratory for Psychiatry and Neuroscience of Henan, Xinxiang, China
| | - Haisan Zhang
- Department of Psychiatry, Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Wenqiang Li
- Department of Psychiatry, Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry, Xinxiang Medical University, Xinxiang, China; International Joint Research Laboratory for Psychiatry and Neuroscience of Henan, Xinxiang, China
| | - Zhaoxi Zhong
- Department of Psychiatry, Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry, Xinxiang Medical University, Xinxiang, China; International Joint Research Laboratory for Psychiatry and Neuroscience of Henan, Xinxiang, China.
| | - Luxian Lv
- Department of Psychiatry, Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry, Xinxiang Medical University, Xinxiang, China; International Joint Research Laboratory for Psychiatry and Neuroscience of Henan, Xinxiang, China.
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Melazzini L, Mazzocchi L, Vecchio A, Paredes A, Mensi MM, Ballante E, Paoletti M, Bastianello S, Balottin U, Borgatti R, Pichiecchio A. Magnetic resonance advanced imaging analysis in adolescents: cortical thickness study to identify attenuated psychosis syndrome. Neuroradiology 2023; 65:1447-1458. [PMID: 37524967 DOI: 10.1007/s00234-023-03200-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 07/11/2023] [Indexed: 08/02/2023]
Abstract
PURPOSE Psychosis is a symptom common to several mental illnesses and a defining feature of schizophrenia spectrum disorders, whose onset typically occurs in adolescence. Neuroradiological studies have reported evidence of brain structural abnormalities in patients with overt psychosis. However, early identification of brain structural changes in young subjects at risk for developing psychosis (such as those with Attenuated Psychosis Syndrome -APS) is currently lacking. METHODS Brain 3D T1-weighted and 64 directions diffusion-weighted images were acquired on 55 help-seeking adolescents (12-17 years old) with psychiatric disorders who referred to our Institute. Patients were divided into three groups: non-APS (n = 20), APS (n = 20), and Early-Onset Psychosis (n = 15). Cortical thickness was calculated from T1w images, and Tract-Based Spatial Statistics analysis was performed to study the distribution of white matter fractional anisotropy and all diffusivity metrics. A thorough neuropsychological test battery was adopted to investigate cognitive performance in several domains. RESULTS In patients with Attenuated Psychotic Syndrome, the left superior frontal gyrus was significantly thinner compared to patients with non-APS (p = 0.048), and their right medial orbitofrontal cortex thickness was associated with lower working memory scores (p = 0.0025, r = -0.668 for the working memory index and p = 0.001, r = -0.738 for the digit span). Early-Onset Psychosis patients showed thinner left pars triangularis compared to non-APS individuals (p = 0.024), and their left pars orbitalis was associated with impaired performance at the symbol search test (p = 0.005, r = -0.726). No differences in diffusivity along main tracts were found between sub-groups (p > 0.05). CONCLUSION This study showed specific associations between structural imaging features and cognitive performance in patients with APS. Characterizing this disorder using neuroimaging could reveal useful information that may aid in the development and evaluation of preventive strategies in these individuals.
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Affiliation(s)
- Luca Melazzini
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Laura Mazzocchi
- Advanced Imaging and Radiomics Center, Neuroradiology Department, IRCCS Mondino Foundation, Pavia, Italy.
| | - Arianna Vecchio
- Child and Adolescent Neuropsychiatric Unit, IRCCS Mondino Foundation, Pavia, Italy
| | - Alexandra Paredes
- Faculty of Medicine and Surgery, Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Martina M Mensi
- Child and Adolescent Neuropsychiatric Unit, IRCCS Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Elena Ballante
- BioData Science Unit, IRCCS Mondino Foundation, Pavia, Italy
- Department of Political and Social Sciences, University of Pavia, Pavia, Italy
| | - Matteo Paoletti
- Advanced Imaging and Radiomics Center, Neuroradiology Department, IRCCS Mondino Foundation, Pavia, Italy
| | - Stefano Bastianello
- Advanced Imaging and Radiomics Center, Neuroradiology Department, IRCCS Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Umberto Balottin
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Renato Borgatti
- Child and Adolescent Neuropsychiatric Unit, IRCCS Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Anna Pichiecchio
- Advanced Imaging and Radiomics Center, Neuroradiology Department, IRCCS Mondino Foundation, Pavia, Italy
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
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Seitz-Holland J, Nägele FL, Kubicki M, Pasternak O, Cho KIK, Hough M, Mulert C, Shenton ME, Crow TJ, James ACD, Lyall AE. Shared and distinct white matter abnormalities in adolescent-onset schizophrenia and adolescent-onset psychotic bipolar disorder. Psychol Med 2023; 53:4707-4719. [PMID: 35796024 PMCID: PMC11119277 DOI: 10.1017/s003329172200160x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND While adolescent-onset schizophrenia (ADO-SCZ) and adolescent-onset bipolar disorder with psychosis (psychotic ADO-BPD) present a more severe clinical course than their adult forms, their pathophysiology is poorly understood. Here, we study potentially state- and trait-related white matter diffusion-weighted magnetic resonance imaging (dMRI) abnormalities along the adolescent-onset psychosis continuum to address this need. METHODS Forty-eight individuals with ADO-SCZ (20 female/28 male), 15 individuals with psychotic ADO-BPD (7 female/8 male), and 35 healthy controls (HCs, 18 female/17 male) underwent dMRI and clinical assessments. Maps of extracellular free-water (FW) and fractional anisotropy of cellular tissue (FAT) were compared between individuals with psychosis and HCs using tract-based spatial statistics and FSL's Randomise. FAT and FW values were extracted, averaged across all voxels that demonstrated group differences, and then utilized to test for the influence of age, medication, age of onset, duration of illness, symptom severity, and intelligence. RESULTS Individuals with adolescent-onset psychosis exhibited pronounced FW and FAT abnormalities compared to HCs. FAT reductions were spatially more widespread in ADO-SCZ. FW increases, however, were only present in psychotic ADO-BPD. In HCs, but not in individuals with adolescent-onset psychosis, FAT was positively related to age. CONCLUSIONS We observe evidence for cellular (FAT) and extracellular (FW) white matter abnormalities in adolescent-onset psychosis. Although cellular white matter abnormalities were more prominent in ADO-SCZ, such alterations may reflect a shared trait, i.e. neurodevelopmental pathology, present across the psychosis spectrum. Extracellular abnormalities were evident in psychotic ADO-BPD, potentially indicating a more dynamic, state-dependent brain reaction to psychosis.
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Affiliation(s)
- Johanna Seitz-Holland
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Felix L. Nägele
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Psychiatry Neuroimaging Branch, Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, University of Hamburg, Hamburg, Germany
| | - Marek Kubicki
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Ofer Pasternak
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Kang Ik K. Cho
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Morgan Hough
- SANE POWIC, University Department of Psychiatry, Warneford Hospital, Oxford, UK
- Highfield Unit, University Department of Psychiatry, Warneford Hospital, Oxford, UK
| | - Christoph Mulert
- Psychiatry Neuroimaging Branch, Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, University of Hamburg, Hamburg, Germany
- Centre for Psychiatry and Psychotherapy, Justus-Liebig-University, Giessen, Germany
| | - Martha E. Shenton
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Timothy J. Crow
- SANE POWIC, University Department of Psychiatry, Warneford Hospital, Oxford, UK
| | - Anthony C. D. James
- SANE POWIC, University Department of Psychiatry, Warneford Hospital, Oxford, UK
- Highfield Unit, University Department of Psychiatry, Warneford Hospital, Oxford, UK
| | - Amanda E. Lyall
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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5
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Langhein M, Lyall AE, Steinmann S, Seitz-Holland J, Nägele FL, Cetin-Karayumak S, Zhang F, Rauh J, Mußmann M, Billah T, Makris N, Pasternak O, O'Donnell LJ, Rathi Y, Leicht G, Kubicki M, Shenton ME, Mulert C. The decoupling of structural and functional connectivity of auditory networks in individuals at clinical high-risk for psychosis. World J Biol Psychiatry 2023; 24:387-399. [PMID: 36083108 PMCID: PMC10399965 DOI: 10.1080/15622975.2022.2112974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 10/14/2022]
Abstract
OBJECTIVES Disrupted auditory networks play an important role in the pathophysiology of psychosis, with abnormalities already observed in individuals at clinical high-risk for psychosis (CHR). Here, we examine structural and functional connectivity of an auditory network in CHR utilising state-of-the-art electroencephalography and diffusion imaging techniques. METHODS Twenty-six CHR subjects and 13 healthy controls (HC) underwent diffusion MRI and electroencephalography while performing an auditory task. We investigated structural connectivity, measured as fractional anisotropy in the Arcuate Fasciculus (AF), Cingulum Bundle, and Superior Longitudinal Fasciculus-II. Gamma-band lagged-phase synchronisation, a functional connectivity measure, was calculated between cortical regions connected by these tracts. RESULTS CHR subjects showed significantly higher structural connectivity in the right AF than HC (p < .001). Although non-significant, functional connectivity between cortical areas connected by the AF was lower in CHR than HC (p = .078). Structural and functional connectivity were correlated in HC (p = .056) but not in CHR (p = .29). CONCLUSIONS We observe significant differences in structural connectivity of the AF, without a concomitant significant change in functional connectivity in CHR subjects. This may suggest that the CHR state is characterised by a decoupling of structural and functional connectivity, possibly due to abnormal white matter maturation.
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Affiliation(s)
- Mina Langhein
- Psychiatry Neuroimaging Branch, Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Amanda E Lyall
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Saskia Steinmann
- Psychiatry Neuroimaging Branch, Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Johanna Seitz-Holland
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Felix L Nägele
- Psychiatry Neuroimaging Branch, Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Suheyla Cetin-Karayumak
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Fan Zhang
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jonas Rauh
- Psychiatry Neuroimaging Branch, Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marius Mußmann
- Psychiatry Neuroimaging Branch, Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tashrif Billah
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Nikos Makris
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Ofer Pasternak
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Lauren J O'Donnell
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Yogesh Rathi
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Gregor Leicht
- Psychiatry Neuroimaging Branch, Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marek Kubicki
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Martha E Shenton
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Christoph Mulert
- Psychiatry Neuroimaging Branch, Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Centre for Psychiatry, Justus-Liebig-University, Giessen, Germany
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Differences in white matter microstructure in first-episode schizophrenia spectrum disorders vs healthy volunteers and their association with cognition. Schizophr Res 2022; 250:196-202. [PMID: 36436499 DOI: 10.1016/j.schres.2022.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 05/06/2022] [Accepted: 11/15/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Both cognitive impairment and alterations in white matter tissue microstructure are well recognised in schizophrenia. We investigated whether differences in white matter microstructure underpin cognitive impairments in patients with first-episode schizophrenia spectrum disorders when controlling for multiple confounding factors. METHODS We employed a cross-sectional study design and compared fractional anisotropy (FA) between individuals diagnosed with first- episode schizophrenia spectrum disorders (FES) (n = 68) and matched healthy controls (n = 120). We conducted multiple analyses of covariance (ANCOVAs) to compare the mean FA values for patients and controls across 27 white matter tracts. We conducted exploratory correlation analyses to determine if white matter tract differences were associated with global cognitive impairment as well as deficits across seven cognitive domains. RESULTS We found widespread reductions in FA in patients compared to controls, after controlling for confounding variables, such as age, biological sex, education, substances, and childhood adversities. We found a significant positive correlation between the attention/vigilance domain and the splenium of the corpus collosum and external capsule after correction for multiple comparisons. In the control group we found no significant correlations between FA and cognition. CONCLUSION Our findings provide a neurobiological basis for attentional cognitive deficits in schizophrenia, highlighting a potential role for the splenium of the corpus collosum and external capsule.
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Roddy DW, Roman E, Nasa A, Gazzaz A, Zainy A, Burke T, Staines L, Kelleher I, O'Neill A, Clarke M, O'Hanlon E, Cannon M. Microstructural changes along the cingulum in young adolescents with psychotic experiences: An along-tract analysis. Eur J Neurosci 2022; 56:5116-5131. [PMID: 36004608 PMCID: PMC9825926 DOI: 10.1111/ejn.15806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 07/30/2022] [Accepted: 08/18/2022] [Indexed: 01/11/2023]
Abstract
Psychotic experiences (PEs) such as hallucinations and delusions are common among young people without psychiatric diagnoses and are associated with connectivity and white matter abnormalities, particularly in the limbic system. Using diffusion magnetic resonance imaging (MRI) in adolescents with reported PEs and matched controls, we examined the cingulum white matter tract along its length rather than as the usually reported single indivisible structure. Complex regional differences in diffusion metrics were found along the bundle at key loci following Bonferroni significance adjustment (p < .00013) with moderate to large effect sizes (.11-.76) throughout all significant subsegments. In this prospective community-based cohort of school-age children, these findings suggest that white matter alterations in the limbic system may be more common in the general non-clinical adolescent population than previously thought. Such white matter alternations may only be uncovered using a similar more granular along-tract analysis of white matter tracts.
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Affiliation(s)
- Darren William Roddy
- Department of PsychiatryRoyal College of Surgeons in IrelandDublinIreland,Trinity College Institute of Neuroscience, Lloyd BuildingTrinity College DublinDublinIreland
| | - Elena Roman
- Department of PsychiatryRoyal College of Surgeons in IrelandDublinIreland
| | - Anurag Nasa
- Trinity College Institute of Neuroscience, Lloyd BuildingTrinity College DublinDublinIreland
| | - Areej Gazzaz
- Department of PsychiatryRoyal College of Surgeons in IrelandDublinIreland
| | - Ahmed Zainy
- Department of PsychiatryRoyal College of Surgeons in IrelandDublinIreland
| | - Tom Burke
- Department of PsychiatryRoyal College of Surgeons in IrelandDublinIreland
| | - Lorna Staines
- Department of PsychiatryRoyal College of Surgeons in IrelandDublinIreland
| | - Ian Kelleher
- Department of PsychiatryRoyal College of Surgeons in IrelandDublinIreland
| | - Aisling O'Neill
- Department of PsychiatryRoyal College of Surgeons in IrelandDublinIreland
| | - Mary Clarke
- Department of PsychiatryRoyal College of Surgeons in IrelandDublinIreland
| | - Erik O'Hanlon
- Department of PsychiatryRoyal College of Surgeons in IrelandDublinIreland,Trinity College Institute of Neuroscience, Lloyd BuildingTrinity College DublinDublinIreland
| | - Mary Cannon
- Department of PsychiatryRoyal College of Surgeons in IrelandDublinIreland
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Xu M, Zhang W, Hochwalt P, Yang C, Liu N, Qu J, Sun H, DelBello MP, Lui S, Nery FG. Structural connectivity associated with familial risk for mental illness: A meta‐analysis of diffusion tensor imaging studies in relatives of patients with severe mental disorders. Hum Brain Mapp 2022; 43:2936-2950. [PMID: 35285560 PMCID: PMC9120564 DOI: 10.1002/hbm.25827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 01/23/2022] [Accepted: 02/14/2022] [Indexed: 02/05/2023] Open
Abstract
Schizophrenia (SCZ), bipolar disorder (BD), and major depressive disorder (MDD) are heritable conditions with overlapping genetic liability. Transdiagnostic and disorder‐specific brain changes associated with familial risk for developing these disorders remain poorly understood. We carried out a meta‐analysis of diffusion tensor imaging (DTI) studies to investigate white matter microstructure abnormalities in relatives that might correspond to shared and discrete biomarkers of familial risk for psychotic or mood disorders. A systematic search of PubMed and Embase was performed to identify DTI studies in relatives of SCZ, BD, and MDD patients. Seed‐based d Mapping software was used to investigate global differences in fractional anisotropy (FA) between overall and disorder‐specific relatives and healthy controls (HC). Our search identified 25 studies that met full inclusion criteria. A total of 1,144 relatives and 1,238 HC were included in the meta‐analysis. The overall relatives exhibited decreased FA in the genu and splenium of corpus callosum (CC) compared with HC. This finding was found highly replicable in jack‐knife analysis and subgroup analyses. In disorder‐specific analysis, compared to HC, relatives of SCZ patients exhibited the same changes while those of BD showed reduced FA in the left inferior longitudinal fasciculus (ILF). The present study showed decreased FA in the genu and splenium of CC in relatives of SCZ, BD, and MDD patients, which might represent a shared familial vulnerability marker of severe mental illness. The white matter abnormalities in the left ILF might represent a specific familial risk for bipolar disorder.
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Affiliation(s)
- Mengyuan Xu
- Department of Radiology West China Hospital of Sichuan University Chengdu China
- Research Unit of Psychoradiology Chinese Academy of Medical Sciences Chengdu China
| | - Wenjing Zhang
- Department of Radiology West China Hospital of Sichuan University Chengdu China
- Research Unit of Psychoradiology Chinese Academy of Medical Sciences Chengdu China
| | - Paul Hochwalt
- Department of Psychiatry and Behavioral Neuroscience University of Cincinnati College of Medicine Cincinnati Ohio USA
| | - Chengmin Yang
- Department of Radiology West China Hospital of Sichuan University Chengdu China
- Research Unit of Psychoradiology Chinese Academy of Medical Sciences Chengdu China
| | - Naici Liu
- Department of Radiology West China Hospital of Sichuan University Chengdu China
- Research Unit of Psychoradiology Chinese Academy of Medical Sciences Chengdu China
| | - Jiao Qu
- Department of Radiology West China Hospital of Sichuan University Chengdu China
- Research Unit of Psychoradiology Chinese Academy of Medical Sciences Chengdu China
| | - Hui Sun
- Department of Radiology West China Hospital of Sichuan University Chengdu China
- Research Unit of Psychoradiology Chinese Academy of Medical Sciences Chengdu China
| | - Melissa P. DelBello
- Department of Psychiatry and Behavioral Neuroscience University of Cincinnati College of Medicine Cincinnati Ohio USA
| | - Su Lui
- Department of Radiology West China Hospital of Sichuan University Chengdu China
- Research Unit of Psychoradiology Chinese Academy of Medical Sciences Chengdu China
| | - Fabiano G. Nery
- Department of Psychiatry and Behavioral Neuroscience University of Cincinnati College of Medicine Cincinnati Ohio USA
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Waszczuk K, Tyburski E, Rek-Owodziń K, Plichta P, Rudkowski K, Podwalski P, Bielecki M, Mak M, Bober A, Misiak B, Sagan L, Michalczyk A, Kucharska-Mazur J, Samochowiec J. Relationship between White Matter Alterations and Pathophysiological Symptoms in Patients with Ultra-High Risk of Psychosis, First-Episode, and Chronic Schizophrenia. Brain Sci 2022; 12:brainsci12030354. [PMID: 35326310 PMCID: PMC8946295 DOI: 10.3390/brainsci12030354] [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: 01/31/2022] [Revised: 02/20/2022] [Accepted: 03/03/2022] [Indexed: 12/03/2022] Open
Abstract
Some symptoms of schizophrenia might be present before full-blown psychosis, so white matter changes must be studied both in individuals with emerging psychosis and chronic schizophrenia. A total of 86 patients—12 ultra-high risk of psychosis (UHR), 20 first episode psychosis (FEP), 54 chronic schizophrenia (CS), and 33 healthy controls (HC)—underwent psychiatric examination and diffusion tensor imaging (DTI) in a 3-Tesla MRI scanner. We assessed fractional anisotropy (FA) and mean diffusivity (MD) of the superior longitudinal fasciculus (SLF) and inferior longitudinal fasciculus (ILS). We found that CS patients had lower FA than FEP patients (p = 0.025) and HC (p = 0.088), and higher MD than HC (p = 0.037) in the right SLF. In the CS group, we found positive correlations of MD in both right ILF (rho = 0.39, p < 0.05) and SLF (rho = 0.43, p < 0.01) with disorganization symptoms, as well as negative correlation of FA in the right ILF with disorganization symptoms (rho = −0.43, p < 0.05). Among UHR individuals, we found significant negative correlations between MD in the left ILF and negative (r = −0.74, p < 0.05) and general symptoms (r = −0.77, p < 0.05). However promising, these findings should be treated as preliminary, and further research must verify whether they can be treated as potential biomarkers of psychosis.
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Affiliation(s)
- Katarzyna Waszczuk
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Ernest Tyburski
- Department of Health Psychology, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Katarzyna Rek-Owodziń
- Department of Health Psychology, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Piotr Plichta
- Department of Health Psychology, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Krzysztof Rudkowski
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Piotr Podwalski
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Maksymilian Bielecki
- Department of Health Psychology, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Monika Mak
- Department of Health Psychology, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Adrianna Bober
- Institute of Psychology, University of Szczecin, Krakowska 69 Street, 71-017 Szczecin, Poland
| | - Błażej Misiak
- Department of Psychiatry, Division of Consultation Psychiatry and Neuroscience, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Leszek Sagan
- Department of Neurosurgery, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1 Street, 71-252 Szczecin, Poland
| | - Anna Michalczyk
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Jolanta Kucharska-Mazur
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
| | - Jerzy Samochowiec
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Broniewskiego 26 Street, 71-460 Szczecin, Poland
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10
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Chen S, Tang Y, Fan X, Qiao Y, Wang J, Wen H, Wang W, Wang H, Yang F, Sheng J. The role of white matter abnormality in the left anterior corona radiata: In relation to formal thought disorder in patients with schizophrenia. Psychiatry Res 2022; 307:114302. [PMID: 34890908 DOI: 10.1016/j.psychres.2021.114302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 11/17/2021] [Accepted: 11/19/2021] [Indexed: 12/27/2022]
Abstract
White matter abnormality has been widely reported in patients with schizophrenia (Sz). However, few studies have focused on the relationship between the white matter deficit and formal thought disorder (FTD). Moreover, the role of genetic high risk in FTD-related white matter deficit remains unclear. The present study recruited 46 Sz patients, 18 unaffected first-degree relatives of Sz patients, and 29 healthy controls. There was a widespread fractional anisotropy (FA) reduction in Sz. In addition, reduced FA in the left anterior corona radiata was related to more severe FTD symptoms in Sz. However, the genetic high-risk group only showed lower mean FA in the left anterior limb of the internal capsule than healthy controls. Our findings suggest that abnormality in the left anterior corona radiata may only occur in Sz but not in the genetic high-risk group. Such an abnormality might be associated with the severity of FTD symptoms. Meanwhile, genetic vulnerability may contribute to the abnormality in the left anterior limb of the internal capsule. Better analytical methods are needed to validate our results.
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Affiliation(s)
- Shan Chen
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai 200030, China
| | - Yingying Tang
- Shanghai Key Laboratory of Psychotic Disorders,Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China; Department of EEG and Imaging, Shanghai Mental Health Center, Shanghai JiaoTong University School of Medicine, Shanghai 200030, China
| | - Xiaoduo Fan
- UMass Memorial Health Care & University of Massachusetts Medical School, Worcester, MA 01605, United States
| | - Yi Qiao
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai 200030, China
| | - Jijun Wang
- Shanghai Key Laboratory of Psychotic Disorders,Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China; Department of EEG and Imaging, Shanghai Mental Health Center, Shanghai JiaoTong University School of Medicine, Shanghai 200030, China
| | - Hun Wen
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai 200030, China
| | - Wenzheng Wang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai 200030, China
| | - Hongyan Wang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai 200030, China
| | - Fuzhong Yang
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai 200030, China.
| | - Jianhua Sheng
- Department of Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600 Wan Ping Nan Road, Shanghai 200030, China.
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11
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Romero S, de la Serna E, Baeza I, Valli I, Pariente JC, Picado M, Bargalló N, Sugranyes G, Castro-Fornieles J. Altered White Matter Integrity at Illness Onset in Adolescents With a First Episode of Psychosis. Front Psychiatry 2022; 13:876793. [PMID: 35619614 PMCID: PMC9127302 DOI: 10.3389/fpsyt.2022.876793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/22/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Disruption in white matter integrity has been consistently observed in individuals with psychosis. However, whether such abnormalities are already present at illness onset or are related to downstream processes remains elusive. The study of adolescents with a recent onset of psychosis provides the opportunity to evaluate white matter integrity proximally to disease onset. METHODS Twenty-six adolescents (aged 15.9 ± 1.3 years) with a first episode of psychosis (FEP) (less than 6 months duration) were compared with 26 age and sex-matched healthy controls (HC) (16.8 ± 2 years). In participants with a FEP, clinical diagnoses were confirmed after a minimum of 1 year follow-up (main categories: schizophrenia, bipolar disorder, or schizoaffective disorder). Anatomical images and diffusion tensor sequences were acquired using a 1.5T scanner. Whole brain, voxel-wise group differences in fractional anisotropy (FA) were investigated between participants with a FEP and controls. RESULTS Relative to HC, FEP participants displayed decreased FA in the right posterior cingulate gyrus, encompassing the right superior and posterior corona radiata, and the right parahippocampal gyrus, including the cingulum and fornix. FEP patients showed no areas of increased FA relative to HC. The results remained significant after controlling for medication, cannabis use and intelligence. CONCLUSION Our findings indicate that adolescents with recent onset of psychotic disorders show decreased white matter integrity in circuits implicated in cognitive functions and emotion regulation.
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Affiliation(s)
- Soledad Romero
- Department of Child and Adolescent Psychiatry and Psychology, Institute of Neuroscience, Hospital Clinic Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Elena de la Serna
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
| | - Inmaculada Baeza
- Department of Child and Adolescent Psychiatry and Psychology, Institute of Neuroscience, Hospital Clinic Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Department of Medicine, University of Barcelona, Barcelona, Spain
| | - Isabel Valli
- Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - José Carlos Pariente
- Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Marisol Picado
- Department of Child and Adolescent Psychiatry and Psychology, Institute of Neuroscience, Hospital Clinic Barcelona, Barcelona, Spain
| | - Nuria Bargalló
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Image Diagnostic Center, Hospital Clinic of Barcelona, Barcelona, Spain
| | - Gisela Sugranyes
- Department of Child and Adolescent Psychiatry and Psychology, Institute of Neuroscience, Hospital Clinic Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Josefina Castro-Fornieles
- Department of Child and Adolescent Psychiatry and Psychology, Institute of Neuroscience, Hospital Clinic Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Department of Medicine, University of Barcelona, Barcelona, Spain
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12
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Wang Y, Jiang F, Liu Y. Spectrum-sine interpolation framework for DTI processing. Med Biol Eng Comput 2021; 60:279-295. [PMID: 34845595 DOI: 10.1007/s11517-021-02471-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 11/06/2021] [Indexed: 11/25/2022]
Abstract
Diffusion tensor imaging (DTI) data interpolation is important for DTI processing, which could affect the precision and computational complexity in the process of denoising, filtering, regularization, and DTI registration and fiber tracking. In this paper, we propose a novel DTI interpolation framework named with spectrum-sine (SS) focusing on tensor orientation variation in DTI processing. Compared with the state-of-the-art DTI interpolation method using Euler angles or quaternion to represent the orientation of DTI tensors, this method does not need to convert eigenvectors into Euler angles or quaternions, but interpolates each tensor's unit eigenvector directly. The prominent merit of this tensor interpolation method lies in tensor orientation information preservation, which is different from the existing DTI tensor interpolation methods that interpolating tensor's orientation information in a scalar way. The experimental results from both synthetic and real human brain DTI data demonstrated the proposed SS interpolation scheme not only maintains the advantages of Log-Euclidean and Riemannian interpolation frameworks, such as preserving the tensor's symmetric positive definiteness and the monotonic determinant variation, but also preserve the tensor's anisotropy property which was proposed in the spectral quaternion (SQ) method.
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Affiliation(s)
- Yuanjun Wang
- Institute of Medical Imaging and Engineering, University of Shanghai for Science and Technology, Shanghai, China.
| | - Fan Jiang
- Institute of Medical Imaging and Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Yu Liu
- Department of Radiology, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.
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13
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Gharaylou Z, Sahraian MA, Hadjighassem M, Kohanpour M, Doosti R, Nahardani S, Moghadasi AN. Widespread Disruptions of White Matter in Familial Multiple Sclerosis: DTI and NODDI Study. Front Neurol 2021; 12:678245. [PMID: 34484098 PMCID: PMC8415561 DOI: 10.3389/fneur.2021.678245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/14/2021] [Indexed: 11/29/2022] Open
Abstract
Diffusion tensor imaging (DTI) is a noninvasive, quantitative MRI technique that measures white matter (WM) integrity. Many brain dimensions are heritable, including white matter integrity measured with DTI. Family studies are valuable to provide insights into the interactive effects of non-environmental factors on multiple sclerosis (MS). To examine the contribution of familial factors to the diffusion signals across WM microstructure, we performed DTI and calculated neurite orientation dispersion plus density imaging (NODDI) diffusion parameters in two patient groups comprising familial and sporadic forms of multiple sclerosis and their unaffected relatives. We divided 111 subjects (49 men and 62 women: age range 19-60) into three groups conforming to their MS history. The familial MS group included 30 participants (patients; n = 16, healthy relatives; n = 14). The sporadic group included 41 participants (patients; n = 10, healthy relatives; n = 31). Forty age-matched subjects with no history of MS in their families were defined as the control group. To study white matter integrity, two methods were employed: one for calculating the mean of DTI, FA, and MD parameters on 18 tracts using Tracts Constrained by Underlying Anatomy (TRACULA) and the other for whole brain voxel-based analysis using tract-based spatial statistics (TBSS) on NDI and ODI parameters derived from NODDI and DTI parameters. Voxel-based analysis showed considerable changes in FA, MD, NDI, and ODI in the familial group when compared with the control group, reflecting widespread impairment of white matter in this group. The analysis of 18 tracts with TRACULA revealed increased MD and FA reduction in more tracts (left and right ILF, UNC, and SLFT, forceps major and minor) in familial MS patients vs. the control group. There were no significant differences between the patient groups. We found no consequential changes in healthy relatives of both patient groups in voxel-based and tract analyses. Considering the multifactorial etiology of MS, familial studies are of great importance to clarify the effects of certain predisposing factors on demyelinating brain pathology.
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Affiliation(s)
- Zeinab Gharaylou
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Sahraian
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmoudreza Hadjighassem
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Kohanpour
- Neuroimaging and Analysis Group (NIAG), Research Center for Molecular and Cellular Imaging, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Rozita Doosti
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shima Nahardani
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Abdorreza Naser Moghadasi
- Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
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14
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Chang X, Mandl RCW, Pasternak O, Brouwer RM, Cahn W, Collin G. Diffusion MRI derived free-water imaging measures in patients with schizophrenia and their non-psychotic siblings. Prog Neuropsychopharmacol Biol Psychiatry 2021; 109:110238. [PMID: 33400942 DOI: 10.1016/j.pnpbp.2020.110238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/16/2020] [Accepted: 12/30/2020] [Indexed: 10/22/2022]
Abstract
Free-water imaging is a diffusion MRI technique that separately models water diffusion hindered by fiber tissue and water that disperses freely in the extracellular space. Studies using this technique have shown that schizophrenia is characterized by a lower level of fractional anisotropy of the tissue compartment (FAt) and higher free-water fractional volume (FW). It is unknown, however, whether such abnormalities are an expression of pre-existing (genetic) risk for schizophrenia or a manifestation of the illness. To investigate the contribution of familial risk factors to white matter abnormalities, we used the free-water imaging technique to assess FAt and FW in a large cohort of 471 participants including 161 patients with schizophrenia, 182 non-psychotic siblings, and 128 healthy controls. In this sample, patients did not show significant differences in FAt as compared to controls, but did exhibit a higher level of FW relative to both controls and siblings in the left uncinate fasciculus, superior corona radiata and fornix / stria terminalis. This increase in FW was found to be related to, though not solely explained by, ventricular enlargement. Siblings did not show significant FW abnormalities. However, siblings did show a higher level of FAt as compared to controls and patients, in line with results of a previous study on the same data using conventional DTI. Taken together, our findings suggest that extracellular free-water accumulation in patients is likely a manifestation of established disease rather than an expression of familial risk for schizophrenia and that super-normal levels of FAt in unaffected siblings may reflect a compensatory process.
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Affiliation(s)
- Xiao Chang
- Department of Psychiatry, University Medical Center Utrecht (UMCU), UMCU Brain Center, Utrecht, the Netherlands; Social, Genetic and Developmental Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK; Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China.
| | - René C W Mandl
- Department of Psychiatry, University Medical Center Utrecht (UMCU), UMCU Brain Center, Utrecht, the Netherlands
| | - Ofer Pasternak
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, USA; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
| | - Rachel M Brouwer
- Department of Psychiatry, University Medical Center Utrecht (UMCU), UMCU Brain Center, Utrecht, the Netherlands
| | - Wiepke Cahn
- Department of Psychiatry, University Medical Center Utrecht (UMCU), UMCU Brain Center, Utrecht, the Netherlands; Altrecht Institute of Mental Health Care, Utrecht, the Netherlands
| | - Guusje Collin
- Department of Psychiatry, University Medical Center Utrecht (UMCU), UMCU Brain Center, Utrecht, the Netherlands; Department of Psychiatry, Psychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, USA; McGovern Institute for Brain Research, Massachusetts Institute of Technology, Boston, USA
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15
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Waszczuk K, Rek-Owodziń K, Tyburski E, Mak M, Misiak B, Samochowiec J. Disturbances in White Matter Integrity in the Ultra-High-Risk Psychosis State-A Systematic Review. J Clin Med 2021; 10:jcm10112515. [PMID: 34204171 PMCID: PMC8201371 DOI: 10.3390/jcm10112515] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/29/2021] [Accepted: 06/03/2021] [Indexed: 11/16/2022] Open
Abstract
Schizophrenia is a severe and disabling mental illness whose etiology still remains unclear. The available literature indicates that there exist white matter (WM) abnormalities in people with schizophrenia spectrum disorders. Recent developments in modern neuroimaging methods have enabled the identification of the structure, morphology, and function of the underlying WM fibers in vivo. The purpose of this paper is to review the existing evidence about WM abnormalities in individuals at ultra-high risk of psychosis (UHR) with the use of diffusion tensor imaging (DTI) available from the National Center for Biotechnology Information PubMed (Medline) and Health Source: Nursing/Academic Edition databases. Of 358 relevant articles identified, 25 papers published in the years 2008–2020 were ultimately included in the review. Most of them supported the presence of subtle aberrations in WM in UHR individuals, especially in the superior longitudinal fasciculus (SLF), the inferior longitudinal fasciculus (ILF), and the inferior fronto-occipital fasciculus (IFOF). These alterations may therefore be considered a promising neurobiological marker for the risk of psychosis. However, due to methodological discrepancies and the relative scarcity of evidence, further investigation is called for, especially into connectome analysis in UHR patients.
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Affiliation(s)
- Katarzyna Waszczuk
- Department of Psychiatry, Pomeranian Medical University, Broniewskiego 26 Street, 71-460 Szczecin, Poland;
- Correspondence: ; Tel./Fax: +48-91-35-11-358
| | - Katarzyna Rek-Owodziń
- Department of Health Psychology, Pomeranian Medical University, Broniewskiego 26 Street, 71-460 Szczecin, Poland; (K.R.-O.); (M.M.)
| | - Ernest Tyburski
- Institute of Psychology, SWPS University of Social Sciences and Humanities, Tadeusza Kutrzeby 10 Street, 61-719 Poznan, Poland;
| | - Monika Mak
- Department of Health Psychology, Pomeranian Medical University, Broniewskiego 26 Street, 71-460 Szczecin, Poland; (K.R.-O.); (M.M.)
| | - Błażej Misiak
- Department of Genetics, Wroclaw Medical University, K. Marcinkowskiego 1 Street, 50-368 Wroclaw, Poland;
| | - Jerzy Samochowiec
- Department of Psychiatry, Pomeranian Medical University, Broniewskiego 26 Street, 71-460 Szczecin, Poland;
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16
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Schoonover KE, Roberts RC. Markers of copper transport in the cingulum bundle in schizophrenia. Schizophr Res 2021; 228:124-133. [PMID: 33434726 PMCID: PMC7988290 DOI: 10.1016/j.schres.2020.11.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 11/16/2020] [Accepted: 11/30/2020] [Indexed: 11/26/2022]
Abstract
Imaging and postmortem studies indicate that schizophrenia subjects exhibit abnormal connectivity in several white matter tracts, including the cingulum bundle. Copper chelators given to experimental animals damage myelin and myelin-producing oligodendrocytes, and the substantia nigra of schizophrenia subjects shows lower levels of copper, copper transporters, and copper-utilizing enzymes. This study aimed to elucidate the potential role of copper homeostasis in white matter pathology in schizophrenia. Protein levels of the copper transporters ATP7A and CTR1, and dysbindin-1, an upstream modulator of copper metabolism and schizophrenia susceptibility factor, were measured using Western blot analyses of the postmortem cingulum bundle of schizophrenia subjects (n=16) and matched controls (n=13). Additionally, the patient group was subdivided by treatment status: off- (n=8) or on-medication (n=8). Relationships between proteins from the current study were correlated among themselves and markers of axonal integrity previously measured in the same cohort. Schizophrenia subjects exhibited similar protein levels to controls, with no effect of antipsychotic treatment. The dysbindin-1A/1BC relationship was positive in controls and schizophrenia subjects; however, antipsychotic treatment appeared to reverse this relationship in a statistically different manner from that of controls and unmedicated subjects. The relationships between dysbindin-1A/neurofilament heavy and ATP7A/α-tubulin were positively correlated in the schizophrenia group that was significantly different from the lack of correlation in controls. Copper transporters and dysbindin-1 appear to be more significantly affected in the grey matter of schizophrenia subjects. However, the relationships among proteins in white matter may be more substantial and dependent on treatment status.
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Affiliation(s)
- Kirsten E Schoonover
- Department of Psychology and Behavioral Neuroscience, University of Alabama at Birmingham, Birmingham, AL 35294, United States of America.
| | - Rosalinda C Roberts
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL 35294, United States of America.
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17
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Lin YH, Dhanaraj V, Mackenzie AE, Young IM, Tanglay O, Briggs RG, Chakraborty AR, Hormovas J, Fonseka RD, Kim SJ, Yeung JT, Teo C, Sughrue ME. Anatomy and White Matter Connections of the Parahippocampal Gyrus. World Neurosurg 2021; 148:e218-e226. [PMID: 33412321 DOI: 10.1016/j.wneu.2020.12.136] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND The parahippocampal gyrus is understood to have a role in high cognitive functions including memory encoding and retrieval and visuospatial processing. A detailed understanding of the exact location and nature of associated white tracts could significantly improve postoperative morbidity related to declining capacity. Through diffusion tensor imaging-based fiber tracking validated by gross anatomic dissection as ground truth, we have characterized these connections based on relationships to other well-known structures. METHODS Diffusion imaging from the Human Connectome Project for 10 healthy adult controls was used for tractography analysis. We evaluated the parahippocampal gyrus as a whole based on connectivity with other regions. All parahippocampal gyrus tracts were mapped in both hemispheres, and a lateralization index was calculated with resultant tract volumes. RESULTS We identified 2 connections of the parahippocampal gyrus: inferior longitudinal fasciculus and cingulum. Lateralization of the cingulum was detected (P < 0.05). CONCLUSIONS The parahippocampal gyrus is an important center for memory processing. Subtle differences in executive functioning following surgery for limbic tumors may be better understood in the context of the fiber-bundle anatomy highlighted by this study.
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Affiliation(s)
- Yueh-Hsin Lin
- Centre for Minimally Invasive Neurosurgery Prince of Wales Private Hospital, Sydney, Australia
| | - Vukshitha Dhanaraj
- Centre for Minimally Invasive Neurosurgery Prince of Wales Private Hospital, Sydney, Australia
| | - Alana E Mackenzie
- Centre for Minimally Invasive Neurosurgery Prince of Wales Private Hospital, Sydney, Australia
| | | | - Onur Tanglay
- Centre for Minimally Invasive Neurosurgery Prince of Wales Private Hospital, Sydney, Australia
| | - Robert G Briggs
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Arpan R Chakraborty
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Jorge Hormovas
- Centre for Minimally Invasive Neurosurgery Prince of Wales Private Hospital, Sydney, Australia
| | - R Dineth Fonseka
- Centre for Minimally Invasive Neurosurgery Prince of Wales Private Hospital, Sydney, Australia
| | - Sihyong J Kim
- Centre for Minimally Invasive Neurosurgery Prince of Wales Private Hospital, Sydney, Australia
| | - Jacky T Yeung
- Centre for Minimally Invasive Neurosurgery Prince of Wales Private Hospital, Sydney, Australia
| | - Charles Teo
- Centre for Minimally Invasive Neurosurgery Prince of Wales Private Hospital, Sydney, Australia
| | - Michael E Sughrue
- Centre for Minimally Invasive Neurosurgery Prince of Wales Private Hospital, Sydney, Australia.
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Gil N, Lipton ML, Fleysher R. Registration quality filtering improves robustness of voxel-wise analyses to the choice of brain template. Neuroimage 2020; 227:117657. [PMID: 33338620 PMCID: PMC7880909 DOI: 10.1016/j.neuroimage.2020.117657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/22/2020] [Accepted: 12/03/2020] [Indexed: 12/05/2022] Open
Abstract
Motivation: Many clinical and scientific conclusions that rely on voxel-wise analyses of neuroimaging depend on the accurate comparison of corresponding anatomical regions. Such comparisons are made possible by registration of the images of subjects of interest onto a common brain template, such as the Johns Hopkins University (JHU) template. However, current image registration algorithms are prone to errors that are distributed in a template-dependent manner. Therefore, the results of voxel-wise analyses can be sensitive to template choice. Despite this problem, the issue of appropriate template choice for voxel-wise analyses is not generally addressed in contemporary neuroimaging studies, which may lead to the reporting of spurious results. Results: We present a novel approach to determine the suitability of a brain template for voxel-wise analysis. The approach is based on computing a “distance” between automatically-generated atlases of the subjects of interest and templates that is indicative of the extent of subject-to-template registration errors. This allows for the filtering of subjects and candidate templates based on a quantitative measure of registration quality. We benchmark our approach by evaluating alternative templates for a voxel-wise analysis that reproduces the well-known decline in fractional anisotropy (FA) with age. Our results show that filtering registrations minimizes errors and decreases the sensitivity of voxel-wise analysis to template choice. In addition to carrying important implications for future neuroimaging studies, the developed framework of template induction can be used to evaluate robustness of data analysis methods to template choice.
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Affiliation(s)
- Nelson Gil
- Department of Systems and Computational Biology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, USA; Department of Biochemistry, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, USA
| | - Michael L Lipton
- Department of Radiology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, USA; Gruss Magnetic Resonance Research Center, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, USA; Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, USA; Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, USA
| | - Roman Fleysher
- Department of Radiology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, USA; Gruss Magnetic Resonance Research Center, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY, USA.
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19
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Wang Y, Wei Y, Edmiston EK, Womer FY, Zhang X, Duan J, Zhu Y, Zhang R, Yin Z, Zhang Y, Jiang X, Wei S, Liu Z, Zhang Y, Tang Y, Wang F. Altered structural connectivity and cytokine levels in Schizophrenia and Genetic high-risk individuals: Associations with disease states and vulnerability. Schizophr Res 2020; 223:158-165. [PMID: 32684357 DOI: 10.1016/j.schres.2020.05.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 03/26/2020] [Accepted: 05/17/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Alterations of white matter (WM) integrity have been observed in both schizophrenia (SZ) and individuals at genetic high risk for SZ (GHR-SZ); however, the molecular mechanisms underlying WM disruption remain unclear. Cytokines are chemical messengers of the immune system that are closely related to inflammation and neurogenesis in the brain. This study aimed to identify abnormalities in WM integrity, cytokine levels, and their association in SZ and GHR-SZ. METHODS A total of 355 participants (126 with SZ, 99 GHR-SZ, and 130 healthy controls [HCs]) were recruited. All participants underwent diffusion tensor imaging and blood samples were obtained from 113 participants within 24 h of imaging. RESULTS In SZ, there was decreased fractional anisotropy(FA) in the genu and body of the corpus callosum (GCC/BCC), anterior corona radiata, anterior and posterior limbs of the internal capsule (ALIC/PLIC), superior fronto-occipital fasciculus, external capsule, and fornix, and elevated IL-6 levels. In both SZ and GHR-SZ, decreased FA in the splenium of the corpus callosum (SCC), posterior corona radiate (PCR), and posterior thalamic radiation (PTR) was observed, and elevated leptin levels were present. Additionally, the IL-6 levels were negatively correlated with FA in the GCC and ALIC in SZ, and leptin levels were negatively correlated with the SCC, PCR, and PTR in SZ and GHR-SZ. CONCLUSIONS Abnormal WM integrity in SZ may reflect the state of disease and is associated with increased IL-6 levels. In addition, these leptin-associated WM integrity abnormalities in both SZ and GHR-SZ may reflect a genetic vulnerability to SZ.
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Affiliation(s)
- Yang Wang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Brain Function Research Section, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Yange Wei
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Brain Function Research Section, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - E Kale Edmiston
- Department of Psychiatry, University of Pittsburgh Medical Center, USA
| | - Fay Y Womer
- Department of Psychiatry, Washington University School of Medicine, St. Louis, USA
| | - Xizhe Zhang
- School of Computer Science and Engineering, Northeastern University, Shenyang, Liaoning, PR China
| | - Jia Duan
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Brain Function Research Section, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Yue Zhu
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Brain Function Research Section, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Ran Zhang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Brain Function Research Section, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Zhiyang Yin
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Brain Function Research Section, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Yifan Zhang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Brain Function Research Section, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Xiaowei Jiang
- Brain Function Research Section, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Shengnan Wei
- Brain Function Research Section, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Zhuang Liu
- School of Public Health, China Medical University, Shenyang, Liaoning, PR China
| | - Yanbo Zhang
- Department of Psychiatry, College of Medicine, University of Saskatchewan, Canada
| | - Yanqing Tang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Brain Function Research Section, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China.
| | - Fei Wang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Brain Function Research Section, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA.
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20
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Bergé D, Mané A, Lesh TA, Bioque M, Barcones F, Gonzalez-Pinto AM, Parellada M, Vieta E, Castro-Fornieles J, Rodriguez-Jimenez R, García-Portilla MP, Usall J, Carter CS, Cabrera B, Bernardo M, Janssen J. Elevated Extracellular Free-Water in a Multicentric First-Episode Psychosis Sample, Decrease During the First 2 Years of Illness. Schizophr Bull 2020; 46:846-856. [PMID: 31915835 PMCID: PMC7342177 DOI: 10.1093/schbul/sbz132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Recent diffusion imaging studies using free-water (FW) elimination have shown increased FW in gray matter (GM) and white matter (WM) in first-episode psychosis (FEP) and lower corrected fractional anisotropy (FAt) in WM in chronic schizophrenia. However, little is known about the longitudinal stability and clinical significance of these findings. To determine tissue-specific FW and FAt abnormalities in FEP, as part of a multicenter Spanish study, 132 FEP and 108 healthy controls (HC) were clinically characterized and underwent structural and diffusion-weighted MRI scanning. FEP subjects were classified as schizophrenia spectrum disorder (SSD) or non-SSD. Of these subjects, 45 FEP and 41 HC were longitudinally assessed and rescanned after 2 years. FA and FW tissue-specific measurements were cross-sectional and longitudinally compared between groups using voxel-wise analyses in the skeletonized WM and vertex-wise analyses in the GM surface. SSD and non-SSD subjects showed (a) higher baseline FW in temporal regions and in whole GM average (P.adj(SSD vs HC) = .003, P.adj(Non-SSD vs HC) = .040) and (b) lower baseline FAt in several WM tracts. SSD, but not non-SSD, showed (a) higher FW in several WM tracts and in whole WM (P.adj(SSD vs HC)= .049) and (b) a significant FW decrease over time in temporal cortical regions and in whole GM average (P.adj = .011). Increased extracellular FW in the brain is a reliable finding in FEP, and in SSD appears to decrease over the early course of the illness. FAt abnormalities are stable during the first years of psychosis.
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Affiliation(s)
- Daniel Bergé
- Neuroscience Department, Neuroimaging Group, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain,Department of Psychiatry and Forensic Medicine, Autonomous University of Barcelona, Bellaterra, Spain,CIBERSAM, Madrid, Spain,To whom correspondence should be addressed; IMIM, Neuroimaging group. c/ Doctor Aiguader 88, 08003, Barcelona, Spain; tel: +34-932483175, fax: 0034 93 248 3445, e-mail:
| | - Anna Mané
- Neuroscience Department, Neuroimaging Group, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain,Department of Psychiatry and Forensic Medicine, Autonomous University of Barcelona, Bellaterra, Spain,CIBERSAM, Madrid, Spain
| | - Tyler A Lesh
- Department of Psychiatry and Behavioral Sciences, University of California at Davis (UCDAVIS), Sacramento, CA
| | - Miquel Bioque
- Schizophrenia Unit, Hospital Clínic Barcelona, Barcelona, Spain
| | - Fe Barcones
- Department of Psychiatry, Instituto Aragonés de Ciencias de la Salud, Zaragoza, Spain,Department of Family Medicine, Hospital Universitario Miguel Servet, Zaragoza, Spain,Department of Medicine and Psychiatry, University of Zaragoza, Zaragoza, Spain
| | - Ana Maria Gonzalez-Pinto
- CIBERSAM, Madrid, Spain,BioAraba Health Research Institute, Vitoria-Gasteiz, Spain,Department of Neuroscience, University of the Basque Country, Leioa, Spain
| | - Mara Parellada
- CIBERSAM, Madrid, Spain,Child and Adolescent Psychiatry, Hospital Gregorio Marañon, Madrid, Spain
| | - Eduard Vieta
- CIBERSAM, Madrid, Spain,Bipolar and Depressive Disorders Unit, Hospital Clínic Barcelona, University of Barcelona, Barcelona, Spain
| | - Josefina Castro-Fornieles
- CIBERSAM, Madrid, Spain,Department of Child and Adolescent Psychiatry and Psychology, IDIBAPS, Hospital Clínic Barcelona, Barcelona, Spain
| | - Roberto Rodriguez-Jimenez
- CIBERSAM, Madrid, Spain,Department of Cognition and Psychosis, Instituto de Investigación Sanitaria 12 de Octubre (imas12), Madrid, Spain
| | | | - Judith Usall
- Research and Development Unit, Parc Sanitari Sant Joan de Déu, Sant Boi de Llobregat, Spain
| | - Cameron S Carter
- Department of Psychiatry and Behavioral Sciences, University of California at Davis (UCDAVIS), Sacramento, CA
| | - Bibiana Cabrera
- CIBERSAM, Madrid, Spain,Schizophrenia Unit, Hospital Clínic Barcelona, Barcelona, Spain
| | - Miguel Bernardo
- CIBERSAM, Madrid, Spain,Schizophrenia Unit, Hospital Clínic Barcelona, Barcelona, Spain
| | - Joost Janssen
- CIBERSAM, Madrid, Spain,Child and Adolescent Psychiatry, Hospital Universitario Gregorio Marañon, Madrid, Spain,Brain Center Rudolf Magnus, UMC Ultrecht, Ultrecht, The Netherlands
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21
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Gouvêa-Junqueira D, Falvella ACB, Antunes ASLM, Seabra G, Brandão-Teles C, Martins-de-Souza D, Crunfli F. Novel Treatment Strategies Targeting Myelin and Oligodendrocyte Dysfunction in Schizophrenia. Front Psychiatry 2020; 11:379. [PMID: 32425837 PMCID: PMC7203658 DOI: 10.3389/fpsyt.2020.00379] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 04/15/2020] [Indexed: 12/12/2022] Open
Abstract
Oligodendrocytes are the glial cells responsible for the formation of the myelin sheath around axons. During neurodevelopment, oligodendrocytes undergo maturation and differentiation, and later remyelination in adulthood. Abnormalities in these processes have been associated with behavioral and cognitive dysfunctions and the development of various mental illnesses like schizophrenia. Several studies have implicated oligodendrocyte dysfunction and myelin abnormalities in the disorder, together with altered expression of myelin-related genes such as Olig2, CNP, and NRG1. However, the molecular mechanisms subjacent of these alterations remain elusive. Schizophrenia is a severe, chronic psychiatric disorder affecting more than 23 million individuals worldwide and its symptoms usually appear at the beginning of adulthood. Currently, the major therapeutic strategy for schizophrenia relies on the use of antipsychotics. Despite their widespread use, the effects of antipsychotics on glial cells, especially oligodendrocytes, remain unclear. Thus, in this review we highlight the current knowledge regarding oligodendrocyte dysfunction in schizophrenia, compiling data from (epi)genetic studies and up-to-date models to investigate the role of oligodendrocytes in the disorder. In addition, we examined potential targets currently investigated for the improvement of schizophrenia symptoms. Research in this area has been investigating potential beneficial compounds, including the D-amino acids D-aspartate and D-serine, that act as NMDA receptor agonists, modulating the glutamatergic signaling; the antioxidant N-acetylcysteine, a precursor in the synthesis of glutathione, protecting against the redox imbalance; as well as lithium, an inhibitor of glycogen synthase kinase 3β (GSK3β) signaling, contributing to oligodendrocyte survival and functioning. In conclusion, there is strong evidence linking oligodendrocyte dysfunction to the development of schizophrenia. Hence, a better understanding of oligodendrocyte differentiation, as well as the effects of antipsychotic medication in these cells, could have potential implications for understanding the development of schizophrenia and finding new targets for drug development.
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Affiliation(s)
- Danielle Gouvêa-Junqueira
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Ana Caroline Brambilla Falvella
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - André Saraiva Leão Marcelo Antunes
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Gabriela Seabra
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Caroline Brandão-Teles
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Daniel Martins-de-Souza
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
- Experimental Medicine Research Cluster (EMRC), University of Campinas, Campinas, Brazil
- Instituto Nacional de Biomarcadores em Neuropsiquiatria, Conselho Nacional de Desenvolvimento Científico e Tecnológico, São Paulo, Brazil
- D′Or Institute for Research and Education (IDOR), São Paulo, Brazil
| | - Fernanda Crunfli
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
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22
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Fitzsimmons J, Rosa P, Sydnor VJ, Reid BE, Makris N, Goldstein JM, Mesholam-Gately RI, Woodberry K, Wojcik J, McCarley RW, Seidman LJ, Shenton ME, Kubicki M. Cingulum bundle abnormalities and risk for schizophrenia. Schizophr Res 2020; 215:385-391. [PMID: 31477373 DOI: 10.1016/j.schres.2019.08.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 07/22/2019] [Accepted: 08/15/2019] [Indexed: 01/13/2023]
Abstract
BACKGROUND The cingulum bundle (CB) is a major white matter fiber tract of the limbic system that underlies cingulate cortex, passing longitudinally over the corpus callosum. The connectivity of this white matter fiber tract plays a major role in emotional expression, attention, motivation, and working memory, all of which are affected in schizophrenia. Myelin related CB abnormalities have also been implicated in schizophrenia. The purpose of this study is to determine whether or not CB abnormalities are evident in individuals at clinical high risk (CHR) for psychosis, and whether or not cognitive deficits in the domains subserved by CB are related to its structural abnormalities. METHODS Diffusion Tensor Imaging (DTI) was performed on a 3 T magnet. DT tractography was used to evaluate CB in 20 individuals meeting CHR criteria (13 males/7 females) and 23 healthy controls (12 males/11 females) group matched on age, gender, parental socioeconomic status, education, and handedness. Fractional anisotropy (FA), a measure of white matter coherence and integrity, radial diffusivity (RD), thought to reflect myelin integrity, trace, a possible marker of atrophy, and axial diffusivity (AD), thought to reflect axonal integrity, were averaged over the entire tract and used to investigate CB abnormalities in individuals at CHR for psychosis compared with healthy controls. RESULTS Significant group differences were found between individuals at CHR for psychosis and controls for FA (p = 0.028), RD (p = 0.03) and trace (p = 0.031), but not for AD (p = 0.09). We did not find any significant correlations between DTI measures and clinical symptoms. CONCLUSION These findings suggest abnormalities (possibly myelin related) in the CB in individuals at CHR for psychosis.
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Affiliation(s)
- Jennifer Fitzsimmons
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America; Psychiatry Neuroimaging Laboratory, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America.
| | - Pedro Rosa
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America; Laboratory of Psychiatric Neuroimaging (LIM-21), Department & Institute of Psychiatry, Faculty of Medicine, Center of Interdisciplinary Research on Applied Neurosciences (NAPNA), University of São Paulo, São Paulo, Brazil; Psychiatry Neuroimaging Laboratory, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Valerie J Sydnor
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America; Psychiatry Neuroimaging Laboratory, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Benjamin E Reid
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America; Psychiatry Neuroimaging Laboratory, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Nikos Makris
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America; Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States of America; Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States of America; Psychiatry Neuroimaging Laboratory, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Jill M Goldstein
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States of America
| | - Raquelle I Mesholam-Gately
- Beth Israel Deaconess Medical Center-Massachusetts Mental Health Center, Public Psychiatry Division, Harvard Medical School, Boston, MA, United States of America
| | - Kristen Woodberry
- Beth Israel Deaconess Medical Center-Massachusetts Mental Health Center, Public Psychiatry Division, Harvard Medical School, Boston, MA, United States of America
| | - Joanne Wojcik
- Beth Israel Deaconess Medical Center-Massachusetts Mental Health Center, Public Psychiatry Division, Harvard Medical School, Boston, MA, United States of America
| | - Robert W McCarley
- Department of Psychiatry, VA Boston Healthcare System, Harvard Medical School, Boston, MA, United States of America
| | - Larry J Seidman
- Beth Israel Deaconess Medical Center-Massachusetts Mental Health Center, Public Psychiatry Division, Harvard Medical School, Boston, MA, United States of America; Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Martha E Shenton
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America; Research and Development, VA Boston Healthcare System, Boston, MA, United States of America; Psychiatry Neuroimaging Laboratory, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Marek Kubicki
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America; Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America; Psychiatry Neuroimaging Laboratory, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America
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23
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Levman J, Fang Z, Zumwalt K, Cogger L, Vasung L, MacDonald P, Lim A, Takahashi E. Asymmetric Insular Connectomics Revealed by Diffusion Magnetic Resonance Imaging Analysis of Healthy Brain Development. Brain Connect 2019; 9:2-12. [PMID: 30501515 DOI: 10.1089/brain.2018.0582] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The insula has been implicated in playing important roles in various brain functions including consciousness, homeostasis, perception, self-awareness, language processing, and interpersonal experience. Abnormalities of the insula have been observed in patients suffering from addiction, deteriorating language function, anorexia, and emotional dysregulation. We analyzed typical development of insular connections in a large-scale pediatric population using 642 magnetic resonance imaging examinations. Interpreting large quantities of acquired data is one of the major challenges in connectomics. This article focuses its analysis on the connectivity observed between the insula and many other regions throughout the brain and performs a hemispheric asymmetry analysis comparing localized connectome measurements. Results demonstrate asymmetries in the pathways connecting the insula to the superior temporal region, pars opercularis, etc. that may be representative of language lateralization in the brain. Results also demonstrate multiple fiber pathways that exhibit hemispheric dominance in tract length and an inverted hemispheric dominance in tract counts, implying the presence of asymmetric lateralization of some of the brain's insular pathways. This study illustrates the investigative potential of performing connectomics-style analyses in a clinical context across a large population of children as part of routine imaging, demonstrating the feasibility of using current technologies to perform regionally focused clinical connectivity studies.
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Affiliation(s)
- Jacob Levman
- 1 Division of Newborn Medicine, Department of Medicine, Boston Children's Hospital, Boston, Massachusetts.,2 Massachusetts General Hospital, Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, Massachusetts.,3 Department of Pediatrics, Harvard Medical School, Boston, Massachusetts.,4 Department of Mathematics, Statistics and Computer Science, St. Francis Xavier University, Antigonish, Canada
| | - Zihang Fang
- 1 Division of Newborn Medicine, Department of Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Katarina Zumwalt
- 5 OceanPath Fellow, Coady International Institute, St. Francis Xavier University, Antigonish, Canada
| | - Liam Cogger
- 4 Department of Mathematics, Statistics and Computer Science, St. Francis Xavier University, Antigonish, Canada
| | - Lana Vasung
- 1 Division of Newborn Medicine, Department of Medicine, Boston Children's Hospital, Boston, Massachusetts.,3 Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
| | - Patrick MacDonald
- 1 Division of Newborn Medicine, Department of Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Ashley Lim
- 1 Division of Newborn Medicine, Department of Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Emi Takahashi
- 1 Division of Newborn Medicine, Department of Medicine, Boston Children's Hospital, Boston, Massachusetts.,2 Massachusetts General Hospital, Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, Massachusetts.,3 Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
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24
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Duchatel RJ, Shannon Weickert C, Tooney PA. White matter neuron biology and neuropathology in schizophrenia. NPJ SCHIZOPHRENIA 2019; 5:10. [PMID: 31285426 PMCID: PMC6614474 DOI: 10.1038/s41537-019-0078-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/06/2019] [Indexed: 12/17/2022]
Abstract
Schizophrenia is considered a neurodevelopmental disorder as it often manifests before full brain maturation and is also a cerebral cortical disorder where deficits in GABAergic interneurons are prominent. Whilst most neurons are located in cortical and subcortical grey matter regions, a smaller population of neurons reside in white matter tracts of the primate and to a lesser extent, the rodent brain, subjacent to the cortex. These interstitial white matter neurons (IWMNs) have been identified with general markers for neurons [e.g., neuronal nuclear antigen (NeuN)] and with specific markers for neuronal subtypes such as GABAergic neurons. Studies of IWMNs in schizophrenia have primarily focused on their density underneath cortical areas known to be affected in schizophrenia such as the dorsolateral prefrontal cortex. Most of these studies of postmortem brains have identified increased NeuN+ and GABAergic IWMN density in people with schizophrenia compared to healthy controls. Whether IWMNs are involved in the pathogenesis of schizophrenia or if they are increased because of the cortical pathology in schizophrenia is unknown. We also do not understand how increased IWMN might contribute to brain dysfunction in the disorder. Here we review the literature on IWMN pathology in schizophrenia. We provide insight into the postulated functional significance of these neurons including how they may contribute to the pathophysiology of schizophrenia.
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Affiliation(s)
- Ryan J Duchatel
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, 2308, Australia.,Priority Centre for Brain and Mental Health Research and Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Cynthia Shannon Weickert
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, 2031, Australia.,School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, NSW, 2052, Australia.,Department of Neuroscience & Physiology, Upstate Medical University, Syracuse, New York, 13210, USA
| | - Paul A Tooney
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, 2308, Australia. .,Priority Centre for Brain and Mental Health Research and Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW, 2308, Australia.
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25
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Niznikiewicz MA. Neurobiological approaches to the study of clinical and genetic high risk for developing psychosis. Psychiatry Res 2019; 277:17-22. [PMID: 30926150 DOI: 10.1016/j.psychres.2019.02.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 02/04/2019] [Accepted: 02/04/2019] [Indexed: 01/12/2023]
Abstract
Research on neurobiological impairments in clinical and genetic high risk for developing psychosis individuals (CHR) has identified several brain abnormalities that impact both brain structure and function. The current review will discuss research examining brain abnormalities in clinical and genetic high risk for psychosis using magnetic resonance imaging (MRI) focusing on structural brain abnormalities, diffusion tensor imaging (DTI) focusing on the integrity of white matter tracks, functional MRI focusing on functional brain abnormalities, and EEG and event related potential (ERP) methodologies focusing on indices of cognitive dysfunction in CHR. Studies conducted across these different methodologies sought to identify brain regions and brain processes that would distinguish between those high risk individuals who converted to psychosis versus those who did not. In addition, in some of the studies, the distinction was made between individuals who converted to psychosis, those who did not, and those individuals who remained clinically symptomatic while not converting to psychosis. The brain regions most often identified as abnormal in this subject group were the brain areas often found abnormal in schizophrenia, including frontal and temporal regions. Similarly, several cognitive processes often found to be abnormal in schizophrenia have been also found impaired in CHR.
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Affiliation(s)
- Margaret A Niznikiewicz
- Harvard Medical School and Veterans Administration Boston, Healthcare System, United States.
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Schoonover KE, Farmer CB, Cash AE, Roberts RC. Pathology of white matter integrity in three major white matter fasciculi: A post-mortem study of schizophrenia and treatment status. Br J Pharmacol 2019; 176:1143-1155. [PMID: 30735241 DOI: 10.1111/bph.14612] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 12/05/2018] [Accepted: 12/12/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND AND PURPOSE Imaging studies have shown that people with schizophrenia exhibit abnormal connectivity termed "dysconnectivity" in several white matter tracts, including the cingulum bundle (CB), corpus callosum (CC), and arcuate fasciculus (AF). This study aimed to elucidate potential contributors to schizophrenia "dysconnectivity." EXPERIMENTAL APPROACH Western blot analysis was used to compare protein levels of myelin basic protein, neurofilament heavy, autophagosome marker LC3, and microtubule marker α-tubulin in post-mortem human CB, CC, and AF in schizophrenia subjects (SZ) and matched normal controls (NC). Additionally, SZ cases were subdivided by treatment status: off-medication (OFF) or on-medication (ON). KEY RESULTS In the CC, the combined SZ group exhibited less neurofilament heavy protein than the NCs. In the CB, the combined SZ group had similar levels of α-tubulin protein versus NC, but OFF subjects had increased α-tubulin protein versus ON and NCs. There were significant correlations between α-tubulin and all other proteins but only in the CB. The strong negative relationship between α-tubulin versus myelin basic protein and α-tubulin versus LC3 in NCs was absent in SZs; coefficients comparison showed significant differences. Preliminary race analyses revealed that African American SZ had less AF α-tubulin than Caucasian SZ and African American normal controls. CONCLUSIONS AND IMPLICATIONS The results show a relationship between tract- and protein-specific abnormalities and diagnosis, treatment, and race. These data suggest there is a dysregulation of the relationship between α-tubulin and the other markers of white matter integrity observed in the CB in schizophrenia.
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Affiliation(s)
- Kirsten E Schoonover
- Department of Psychology and Behavioral Neuroscience, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Charlene B Farmer
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Andrew E Cash
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Rosalinda C Roberts
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
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Hermens DF, Hatton SN, White D, Lee RSC, Guastella AJ, Scott EM, Naismith SL, Hickie IB, Lagopoulos J. A data-driven transdiagnostic analysis of white matter integrity in young adults with major psychiatric disorders. Prog Neuropsychopharmacol Biol Psychiatry 2019; 89:73-83. [PMID: 30171994 DOI: 10.1016/j.pnpbp.2018.08.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 08/12/2018] [Accepted: 08/29/2018] [Indexed: 01/08/2023]
Abstract
Diffusion tensor imaging (DTI) has been utilized to index white matter (WM) integrity in the major psychiatric disorders. However, the findings within and across such disorders have been mixed. Given this, transdiagnostic sampling with data-driven statistical approaches may lead to new and better insights about the clinical and functional factors associated with WM abnormalities. Thus, we undertook a cross-sectional DTI study of 401 young adult (18-30 years old) outpatients with a major psychiatric (depressive, bipolar, psychotic, or anxiety) disorder and 61 healthy controls. Participants also completed self-report questionnaires and underwent neuropsychological assessment. Fractional anisotropy (FA) as well as axial (AD) and radial (RD) diffusivity was determined via a whole brain voxel-wise approach (tract-based spatial statistics). Hierarchical cluster analysis was performed on FA scores in patients only, obtained from 20 major WM tracts (that is, association, projection and commissural fibers). The three cluster groups derived were distinguished by having consistently increased or decreased FA scores across all tracts. Compared to controls, the largest cluster (N = 177) showed significantly increased FA in 55% of tracts, the second cluster (N = 169) demonstrated decreased FA (in 90% of tracts) and the final cluster (N = 55) exhibited the most increased FA (in 95% of tracts). Importantly, the distribution of primary diagnosis did not significantly differ among the three clusters. Furthermore, the clusters showed comparable functional, clinical and neuropsychological measures, with the exception of alcohol use, medication status and verbal fluency. Overall, this study provides evidence that among young adults with a major psychiatric disorder there are subgroups with either abnormally high or low FA and that either pattern is associated with suboptimal functioning. Importantly, these neuroimaging-based subgroups appear despite diagnostic and clinical factors, suggesting differential treatment strategies are warranted.
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Affiliation(s)
- Daniel F Hermens
- Youth Mental Health Team, Brain and Mind Centre, University of Sydney, Camperdown, NSW, Australia; Sunshine Coast Mind and Neuroscience Thompson Institute, University of the Sunshine Coast, Birtinya, QLD, Australia.
| | - Sean N Hatton
- Youth Mental Health Team, Brain and Mind Centre, University of Sydney, Camperdown, NSW, Australia; Department of Psychiatry, University of California, San Diego, CA, USA
| | - Django White
- Youth Mental Health Team, Brain and Mind Centre, University of Sydney, Camperdown, NSW, Australia
| | - Rico S C Lee
- Brain and Mental Health Laboratory, Monash University, Melbourne, VIC, Australia
| | - Adam J Guastella
- Youth Mental Health Team, Brain and Mind Centre, University of Sydney, Camperdown, NSW, Australia
| | - Elizabeth M Scott
- School of Medicine, University of Notre Dame, Sydney, NSW, Australia
| | - Sharon L Naismith
- Youth Mental Health Team, Brain and Mind Centre, University of Sydney, Camperdown, NSW, Australia
| | - Ian B Hickie
- Youth Mental Health Team, Brain and Mind Centre, University of Sydney, Camperdown, NSW, Australia
| | - Jim Lagopoulos
- Sunshine Coast Mind and Neuroscience Thompson Institute, University of the Sunshine Coast, Birtinya, QLD, Australia
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Polygenic Scores for Neuropsychiatric Traits and White Matter Microstructure in the Pediatric Population. BIOLOGICAL PSYCHIATRY: COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2019; 4:243-250. [DOI: 10.1016/j.bpsc.2018.07.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/08/2018] [Accepted: 07/09/2018] [Indexed: 12/31/2022]
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Low-rank network signatures in the triple network separate schizophrenia and major depressive disorder. NEUROIMAGE-CLINICAL 2019; 22:101725. [PMID: 30798168 PMCID: PMC6389685 DOI: 10.1016/j.nicl.2019.101725] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 01/30/2019] [Accepted: 02/18/2019] [Indexed: 02/05/2023]
Abstract
Brain imaging studies have revealed that functional and structural brain connectivity in the so-called triple network (i.e., default mode network (DMN), salience network (SN) and central executive network (CEN)) are consistently altered in schizophrenia. However, similar changes have also been found in patients with major depressive disorder, prompting the question of specific triple network signatures for the two disorders. In this study, we proposed Supervised Convex Nonnegative Matrix Factorization (SCNMF) to extract distributed multi-modal brain patterns. These patterns distinguish schizophrenia and major depressive disorder in a latent low-dimensional space of the triple brain network. Specifically, 21 patients of schizophrenia and 25 patients of major depressive disorder were assessed by T1-weighted, diffusion-weighted, and resting-state functional MRIs. Individual structural and functional connectivity networks, based on pre-defined regions of the triple network were constructed, respectively. Afterwards, SCNMF was employed to extract the discriminative patterns. Experiments indicate that SCNMF allows extracting the low-rank discriminative patterns between the two disorders, achieving a classification accuracy of 82.6% based on the extracted functional and structural abnormalities with support vector machine. Experimental results show the specific brain patterns for schizophrenia and major depressive disorder that are multi-modal, complex, and distributed in the triple network. Parts of the prefrontal cortex including superior frontal gyri showed variation between patients with schizophrenia and major depression due to structural properties. In terms of functional properties, the middle cingulate cortex, inferior parietal lobule, and cingulate cortex were the most discriminative regions. Specific changes in SZP and MDD are complex but subtle, and distributed in triple networks. Low-rank network signatures on multi-modal data well separate SZP and MDD. Group-specific latent disrupted patterns are uncovered with SCNMF.
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Rubin TG, Catenaccio E, Fleysher R, Hunter LE, Lubin N, Stewart WF, Kim M, Lipton RB, Lipton ML. MRI-defined White Matter Microstructural Alteration Associated with Soccer Heading Is More Extensive in Women than Men. Radiology 2018; 289:478-486. [PMID: 30063172 PMCID: PMC6209057 DOI: 10.1148/radiol.2018180217] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/02/2018] [Accepted: 05/22/2018] [Indexed: 01/08/2023]
Abstract
Purpose To examine the role of sex in abnormal white matter microstructure after soccer heading as identified by using the diffusion-tensor imaging (DTI) metric fractional anisotropy (FA). Materials and Methods In this prospective cross-sectional study, 98 individuals who were enrolled in a larger prospective study of amateur soccer players (from 2013 to 2016) were matched 1:1 for age and history of soccer heading in the prior 12 months. Among the subjects, 49 men (mean age, 25.7 years; range, 18-50 years) and 49 women (mean age, 25.8 years; range, 18-50 years) with median total soccer headings per year of 487 and 469, respectively, underwent 3.0-T DTI. Images were registered to the Johns Hopkins University template. A voxelwise linear regression was fitted for FA with terms for the number of headings during the previous 12 months and its interaction with sex after controlling for the following potential confounders: age, years of education, number of lifetime concussions, and handedness. In the resulting statistical maps, P < .01 indicated a statistically significant difference, with a threshold cluster size larger than 100 mm3. Results Among men, three regions were identified in which greater heading exposure was associated with lower FA; eight such regions were identified among women (>100 contiguous voxels, P < .01). In seven of the eight regions identified in women, the association between heading and FA was stronger in women than in men. There was no significant difference of heading with FA between the sexes for any region in which heading was associated with FA among men (P > .01, <100 contiguous voxels). Conclusion With similar exposure to heading, women exhibit more widespread evidence of microstructural white matter alteration than do men, suggesting preliminary support for a biologic divergence of brain response to repetitive trauma. © RSNA, 2018 Online supplemental material is available for this article.
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Affiliation(s)
| | | | - Roman Fleysher
- From the Gruss Magnetic Resonance Research Center, Department of Radiology (T.G.R., R.F., L.E.H., N.L., M.L.L.), Departments of Epidemiology and Population Health (M.K., R.B.L.), Neurology (R.B.L.), and Psychiatry and Behavioral Sciences (M.L.L.), and the Dominick P. Purpura Department of Neuroscience (T.G.R., M.L.L.), Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461; Departments of Radiology (M.L.L.) and Neurology (R.B.L.), Montefiore Medical Center, Bronx, NY; Department of Pediatrics, Johns Hopkins University, Baltimore, Md (E.C.); and Sutter Health, Walnut Creek, Calif (W.F.S.)
| | - Liane E. Hunter
- From the Gruss Magnetic Resonance Research Center, Department of Radiology (T.G.R., R.F., L.E.H., N.L., M.L.L.), Departments of Epidemiology and Population Health (M.K., R.B.L.), Neurology (R.B.L.), and Psychiatry and Behavioral Sciences (M.L.L.), and the Dominick P. Purpura Department of Neuroscience (T.G.R., M.L.L.), Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461; Departments of Radiology (M.L.L.) and Neurology (R.B.L.), Montefiore Medical Center, Bronx, NY; Department of Pediatrics, Johns Hopkins University, Baltimore, Md (E.C.); and Sutter Health, Walnut Creek, Calif (W.F.S.)
| | - Naomi Lubin
- From the Gruss Magnetic Resonance Research Center, Department of Radiology (T.G.R., R.F., L.E.H., N.L., M.L.L.), Departments of Epidemiology and Population Health (M.K., R.B.L.), Neurology (R.B.L.), and Psychiatry and Behavioral Sciences (M.L.L.), and the Dominick P. Purpura Department of Neuroscience (T.G.R., M.L.L.), Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461; Departments of Radiology (M.L.L.) and Neurology (R.B.L.), Montefiore Medical Center, Bronx, NY; Department of Pediatrics, Johns Hopkins University, Baltimore, Md (E.C.); and Sutter Health, Walnut Creek, Calif (W.F.S.)
| | - Walter F. Stewart
- From the Gruss Magnetic Resonance Research Center, Department of Radiology (T.G.R., R.F., L.E.H., N.L., M.L.L.), Departments of Epidemiology and Population Health (M.K., R.B.L.), Neurology (R.B.L.), and Psychiatry and Behavioral Sciences (M.L.L.), and the Dominick P. Purpura Department of Neuroscience (T.G.R., M.L.L.), Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461; Departments of Radiology (M.L.L.) and Neurology (R.B.L.), Montefiore Medical Center, Bronx, NY; Department of Pediatrics, Johns Hopkins University, Baltimore, Md (E.C.); and Sutter Health, Walnut Creek, Calif (W.F.S.)
| | - Mimi Kim
- From the Gruss Magnetic Resonance Research Center, Department of Radiology (T.G.R., R.F., L.E.H., N.L., M.L.L.), Departments of Epidemiology and Population Health (M.K., R.B.L.), Neurology (R.B.L.), and Psychiatry and Behavioral Sciences (M.L.L.), and the Dominick P. Purpura Department of Neuroscience (T.G.R., M.L.L.), Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461; Departments of Radiology (M.L.L.) and Neurology (R.B.L.), Montefiore Medical Center, Bronx, NY; Department of Pediatrics, Johns Hopkins University, Baltimore, Md (E.C.); and Sutter Health, Walnut Creek, Calif (W.F.S.)
| | - Richard B. Lipton
- From the Gruss Magnetic Resonance Research Center, Department of Radiology (T.G.R., R.F., L.E.H., N.L., M.L.L.), Departments of Epidemiology and Population Health (M.K., R.B.L.), Neurology (R.B.L.), and Psychiatry and Behavioral Sciences (M.L.L.), and the Dominick P. Purpura Department of Neuroscience (T.G.R., M.L.L.), Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461; Departments of Radiology (M.L.L.) and Neurology (R.B.L.), Montefiore Medical Center, Bronx, NY; Department of Pediatrics, Johns Hopkins University, Baltimore, Md (E.C.); and Sutter Health, Walnut Creek, Calif (W.F.S.)
| | - Michael L. Lipton
- From the Gruss Magnetic Resonance Research Center, Department of Radiology (T.G.R., R.F., L.E.H., N.L., M.L.L.), Departments of Epidemiology and Population Health (M.K., R.B.L.), Neurology (R.B.L.), and Psychiatry and Behavioral Sciences (M.L.L.), and the Dominick P. Purpura Department of Neuroscience (T.G.R., M.L.L.), Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461; Departments of Radiology (M.L.L.) and Neurology (R.B.L.), Montefiore Medical Center, Bronx, NY; Department of Pediatrics, Johns Hopkins University, Baltimore, Md (E.C.); and Sutter Health, Walnut Creek, Calif (W.F.S.)
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31
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Bubb EJ, Metzler-Baddeley C, Aggleton JP. The cingulum bundle: Anatomy, function, and dysfunction. Neurosci Biobehav Rev 2018; 92:104-127. [PMID: 29753752 PMCID: PMC6090091 DOI: 10.1016/j.neubiorev.2018.05.008] [Citation(s) in RCA: 391] [Impact Index Per Article: 65.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 05/01/2018] [Accepted: 05/04/2018] [Indexed: 12/16/2022]
Abstract
The cingulum bundle is a prominent white matter tract that interconnects frontal, parietal, and medial temporal sites, while also linking subcortical nuclei to the cingulate gyrus. Despite its apparent continuity, the cingulum's composition continually changes as fibres join and leave the bundle. To help understand its complex structure, this review begins with detailed, comparative descriptions of the multiple connections comprising the cingulum bundle. Next, the impact of cingulum bundle damage in rats, monkeys, and humans is analysed. Despite causing extensive anatomical disconnections, cingulum bundle lesions typically produce only mild deficits, highlighting the importance of parallel pathways and the distributed nature of its various functions. Meanwhile, non-invasive imaging implicates the cingulum bundle in executive control, emotion, pain (dorsal cingulum), and episodic memory (parahippocampal cingulum), while clinical studies reveal cingulum abnormalities in numerous conditions, including schizophrenia, depression, post-traumatic stress disorder, obsessive compulsive disorder, autism spectrum disorder, Mild Cognitive Impairment, and Alzheimer's disease. Understanding the seemingly diverse contributions of the cingulum will require better ways of isolating pathways within this highly complex tract.
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Affiliation(s)
- Emma J Bubb
- School of Psychology, Cardiff University, 70 Park Place, Cardiff, CF10 3AT, Wales, UK
| | | | - John P Aggleton
- School of Psychology, Cardiff University, 70 Park Place, Cardiff, CF10 3AT, Wales, UK.
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32
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Hawco C, Voineskos AN, Radhu N, Rotenberg D, Ameis S, Backhouse FA, Semeralul M, Daskalakis ZJ. Age and gender interactions in white matter of schizophrenia and obsessive compulsive disorder compared to non-psychiatric controls: commonalities across disorders. Brain Imaging Behav 2018; 11:1836-1848. [PMID: 27915397 DOI: 10.1007/s11682-016-9657-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Schizophrenia (SCZ) and obsessive-compulsive disorder (OCD) are psychiatric disorders with abnormalities in white matter structure. These disorders share high comorbidity and family history of OCD is a risk factor for SCZ which suggests some shared neurobiology. White matter was examined using diffusion tensor imaging in relativity large samples of SCZ (N = 48), OCD (N = 38) and non-psychiatric controls (N = 45). Fractional anisotropy (FA) was calculated and tract based spatial statistics were used to compare groups. In a whole brain analysis, SCZ and OCD both showed small FA reductions relative to controls in the corpus callosum. Both SCZ and OCD showed accelerated reductions in FA with age; specifically in the left superior longitudinal fasciculus in OCD, while the SCZ group demonstrated a more widespread pattern of FA reduction. Patient groups did not differ from each other in total FA or age effects in any regions. A general linear model using 13 a-priori regions of interest showed marginal group, group*gender, and group*age interactions. When OCD and SCZ groups were analyzed together, these marginal effects became significant (p < 0.05), suggesting commonalities exist between these patient groups. Overall, our results demonstrate a similar pattern of accelerated white matter decline with age and greater white matter deficit in females in OCD and SCZ, with overlap in the spatial pattern of deficits. There was no evidence for statistical differences in overall white matter between OCD and SCZ. Taken together, the results support the notion of shared neurobiology in SCZ and OCD.
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Affiliation(s)
- Colin Hawco
- Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Unit 4-1, Office 125, 1001 Queen Street West, Toronto, ON, M6J 1H4, Canada. .,Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, Toronto, ON, Canada.
| | - Aristotle N Voineskos
- Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Unit 4-1, Office 125, 1001 Queen Street West, Toronto, ON, M6J 1H4, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Natasha Radhu
- Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Unit 4-1, Office 125, 1001 Queen Street West, Toronto, ON, M6J 1H4, Canada.,Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - David Rotenberg
- Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Unit 4-1, Office 125, 1001 Queen Street West, Toronto, ON, M6J 1H4, Canada
| | - Stephanie Ameis
- Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Unit 4-1, Office 125, 1001 Queen Street West, Toronto, ON, M6J 1H4, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Felicity A Backhouse
- Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Unit 4-1, Office 125, 1001 Queen Street West, Toronto, ON, M6J 1H4, Canada.,Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Mawahib Semeralul
- Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, Toronto, ON, Canada
| | - Zafiris J Daskalakis
- Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute, Unit 4-1, Office 125, 1001 Queen Street West, Toronto, ON, M6J 1H4, Canada.,Temerty Centre for Therapeutic Brain Intervention, Centre for Addiction and Mental Health, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
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Nuninga JO, Bohlken MM, Koops S, Fiksinski AM, Mandl RCW, Breetvelt EJ, Duijff SN, Kahn RS, Sommer IEC, Vorstman JAS. White matter abnormalities in 22q11.2 deletion syndrome patients showing cognitive decline. Psychol Med 2018; 48:1655-1663. [PMID: 29143717 DOI: 10.1017/s0033291717003142] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Decline in cognitive functioning precedes the first psychotic episode in the course of schizophrenia and is considered a hallmark symptom of the disorder. Given the low incidence of schizophrenia, it remains a challenge to investigate whether cognitive decline coincides with disease-related changes in brain structure, such as white matter abnormalities. The 22q11.2 deletion syndrome (22q11DS) is an appealing model in this context, as 25% of patients develop psychosis. Furthermore, we recently showed that cognitive decline also precedes the onset of psychosis in individuals with 22q11DS. Here, we investigate whether the early cognitive decline in patients with 22q11DS is associated with alterations in white matter microstructure. METHODS We compared the fractional anisotropy (FA) of white matter in 22q11DS patients with cognitive decline [n = 16; -18.34 (15.8) VIQ percentile points over 6.80 (2.39) years] to 22q11DS patients without cognitive decline [n = 18; 17.71 (20.17) VIQ percentile points over 5.27 (2.03) years] by applying an atlas-based approach to diffusion-weighted imaging data. RESULTS FA was significantly increased (p < 0.05, FDR) in 22q11DS patients with a cognitive decline in the bilateral superior longitudinal fasciculus, the bilateral cingulum bundle, all subcomponents of the left internal capsule and the left superior frontal-occipital fasciculus as compared with 22q11DS patients without cognitive decline. CONCLUSIONS Within 22q11DS, the early cognitive decline is associated with microstructural differences in white matter. At the mean age of 17.8 years, these changes are reflected in increased FA in several tracts. We hypothesize that similar brain alterations associated with cognitive decline take place early in the trajectory of schizophrenia.
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Affiliation(s)
- Jasper Olivier Nuninga
- Department of Psychiatry,Rudolf Magnus Institute of Neuroscience, University Medical Center,Utrecht,The Netherlands
| | - Marc Marijn Bohlken
- Department of Psychiatry,Rudolf Magnus Institute of Neuroscience, University Medical Center,Utrecht,The Netherlands
| | - Sanne Koops
- Department of Psychiatry,Rudolf Magnus Institute of Neuroscience, University Medical Center,Utrecht,The Netherlands
| | - Ania M Fiksinski
- Department of Psychiatry,Rudolf Magnus Institute of Neuroscience, University Medical Center,Utrecht,The Netherlands
| | - René C W Mandl
- Department of Psychiatry,Rudolf Magnus Institute of Neuroscience, University Medical Center,Utrecht,The Netherlands
| | - Elemi J Breetvelt
- Dalglish Family Hearts and Minds Clinic for 22q11.2 Deletion Syndrome, Toronto General Hospital, University Health Network,Toronto, Ontario,Canada
| | - Sasja N Duijff
- Department of Psychiatry,Rudolf Magnus Institute of Neuroscience, University Medical Center,Utrecht,The Netherlands
| | - René S Kahn
- Department of Psychiatry,Rudolf Magnus Institute of Neuroscience, University Medical Center,Utrecht,The Netherlands
| | - Iris E C Sommer
- Department of Psychiatry,Rudolf Magnus Institute of Neuroscience, University Medical Center,Utrecht,The Netherlands
| | - Jacob A S Vorstman
- Department of Psychiatry,Rudolf Magnus Institute of Neuroscience, University Medical Center,Utrecht,The Netherlands
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Cooper S, Alm KH, Olson IR, Ellman LM. White matter alterations in individuals experiencing attenuated positive psychotic symptoms. Early Interv Psychiatry 2018; 12:372-379. [PMID: 26818412 PMCID: PMC4965329 DOI: 10.1111/eip.12306] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 12/15/2015] [Indexed: 01/08/2023]
Abstract
AIM Diffusion tensor imaging (DTI) studies suggest that reduced fractional anisotropy (FA) in the inferior longitudinal fasciculus (ILF) and superior longitudinal fasciculus (SLF) occurs among schizophrenia patients and those at risk for psychosis. Nevertheless, there is a dearth of knowledge investigating white matter fibre pathways in non-help-seeking individuals who endorse attenuated positive psychotic symptoms (APPS) across a range of mental disorders. The aim of the current study was to determine if alterations in ILF and SLF microstructures were specific to distressing APPS related to risk for psychosis or to APPS symptoms occurring in multiple mental disorders, which would suggest a shared phenotype among disorders. METHOD Twenty-six non-help-seeking young adults were administered the Prodromal Questionnaire. DTI was conducted on participants (n = 13) who endorsed eight or more distressing APPS (D-APPS, a potentially clinically relevant group) and those who endorsed three or fewer distressing APPS (low-APPS; n = 13). Semistructured interviews were administered to determine diagnoses, as well as clinical risk for psychosis status. RESULTS Results indicated that the D-APPS group exhibited decreased FA in the left ILF compared with the low-APPS group, even after removing four D-APPS participants who were considered at risk for psychosis. CONCLUSION Findings suggest that white matter microstructure is altered in individuals experiencing APPS across a range of disorders, independent of clinical high risk for psychosis status. Reduced FA in the left ILF may not be specific to psychosis risk, but rather for APPS that occur in a number of mental disorders.
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Affiliation(s)
- Shanna Cooper
- Department of Psychology, Temple University, Philadelphia, Pennsylvania, USA
| | - Kylie H Alm
- Department of Psychology, Temple University, Philadelphia, Pennsylvania, USA
| | - Ingrid R Olson
- Department of Psychology, Temple University, Philadelphia, Pennsylvania, USA
| | - Lauren M Ellman
- Department of Psychology, Temple University, Philadelphia, Pennsylvania, USA
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35
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Lukoshe A, van den Bosch GE, van der Lugt A, Kushner SA, Hokken-Koelega AC, White T. Aberrant White Matter Microstructure in Children and Adolescents With the Subtype of Prader-Willi Syndrome at High Risk for Psychosis. Schizophr Bull 2017; 43:1090-1099. [PMID: 28510708 PMCID: PMC5581891 DOI: 10.1093/schbul/sbx052] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Prader-Willi Syndrome (PWS) is a complex neurogenetic disorder caused by loss of the paternal 15q11.2-q13 locus, due to deletion (DEL), maternal uniparental disomy (mUPD), or imprinting center defects. Individuals with mUPD have up to 60% risk of developing psychosis in early adulthood. Given the increasing evidence for white matter abnormalities in psychotic disorders, we investigated white matter microstructure in children and adolescents with PWS, with a particular emphasis on the DEL and mUPD subtypes. Magnetic resonance diffusion weighted images were acquired in 35 directions at 3T and analyzed using fractional anisotropy (FA), mean, axial, and radial diffusivity (MD, AD, RD) values obtained by tract-based spatial statistics (TBSS) in 28 children and adolescents with PWS and 61 controls. In addition, we employed a recently developed white matter pothole approach, which does not require local FA differences to be spatially co-localized across subjects. After accounting for age and gender, individuals with PWS had significantly lower global FA and higher MD, compared with controls. Individuals with mUPD had lower FA in multiple regions including the corpus callosum, cingulate, and superior longitudinal fasciculus and larger potholes, compared with DEL and controls. The observed differences in individuals with mUPD are similar to the white matter abnormalities in individuals with psychotic disorders. Conversely, the subtle white matter abnormalities in individuals with DEL are consistent with their substantially lower risk of psychosis. Future studies to investigate the specific neurobiological mechanism underlying the differential psychosis risk between the DEL and mUPD subtypes of PWS are highly warranted.
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Affiliation(s)
- Akvile Lukoshe
- Dutch Growth Research Foundation, Rotterdam, The Netherlands;,Department of Pediatrics, Erasmus Medical Centre Rotterdam/Sophia Children’s Hospital Rotterdam, Rotterdam, The Netherlands
| | - Gerbrich E van den Bosch
- Intensive Care and Department of Pediatric Surgery, Erasmus MC-Sophia Children’s Hospital, Rotterdam, The Netherlands
| | - Aad van der Lugt
- Department of Radiology, Erasmus Medical Centre Rotterdam, Postbus 2040, 3000 CA Rotterdam, The Netherlands
| | - Steven A Kushner
- Department of Psychiatry, Erasmus Medical Centre Rotterdam, Rotterdam, The Netherlands
| | - Anita C Hokken-Koelega
- Dutch Growth Research Foundation, Rotterdam, The Netherlands;,Department of Pediatrics, Erasmus Medical Centre Rotterdam/Sophia Children’s Hospital Rotterdam, Rotterdam, The Netherlands;,These authors contributed equally to the article
| | - Tonya White
- Department of Radiology, Erasmus Medical Centre Rotterdam, Postbus 2040, 3000 CA Rotterdam, The Netherlands;,Department of Child and Adolescent Psychiatry, Erasmus Medical Centre Rotterdam—Sophia Children’s Hospital, Rotterdam, The Netherlands,These authors contributed equally to the article.,To whom correspondence should be addressed; tel: +31-0-10-703-70-72, e-mail:
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36
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Zhao X, Tian L, Yan J, Yue W, Yan H, Zhang D. Abnormal Rich-Club Organization Associated with Compromised Cognitive Function in Patients with Schizophrenia and Their Unaffected Parents. Neurosci Bull 2017. [PMID: 28646350 DOI: 10.1007/s12264-017-0151-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Schizophrenia is considered to be a disorder of brain connectivity, which might result from a disproportionally impaired rich-club organization. The rich-club is composed of highly interconnected hub regions that play crucial roles in integrating information between different brain regions. Few studies have yet investigated whether the structural rich-club organization is impaired in patients and their first-degree relatives. In this study, we established a weighted network model of white matter connections using diffusion tensor imaging of 19 patients and 39 unaffected parents, 22 young healthy controls for the patients, and 25 old healthy controls for the parents. Feeder edges between rich-club nodes and non-rich-club nodes were significantly decreased in both schizophrenic patients and their unaffected parents compared with controls. Furthermore, the feeder edges showed significant positive correlations with the scores in Category Fluency Test-animal naming in the unaffected parents. Specific feeder edges exhibited discriminative power with accuracy of 84.4% in distinguishing unaffected parents from old healthy controls. Our findings suggest that impaired rich-club organization, especially impaired feeder edges, may be related to familial vulnerability to schizophrenia, possibly reflecting a genetic predisposition for schizophrenia.
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Affiliation(s)
- Xin Zhao
- Institute of Mental Health, Peking University Sixth Hospital, Beijing, 100191, China.,National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health (Ministry of Health), Peking University, Beijing, 100191, China
| | - Lin Tian
- Department of Psychiatry, Wuxi Mental Health Center, Nanjing Medical University, Wuxi, 214151, China.,Wuxi Tongren International Rehabilitation Hospital, Wuxi, 214151, China
| | - Jun Yan
- Institute of Mental Health, Peking University Sixth Hospital, Beijing, 100191, China.,National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health (Ministry of Health), Peking University, Beijing, 100191, China
| | - Weihua Yue
- Institute of Mental Health, Peking University Sixth Hospital, Beijing, 100191, China.,National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health (Ministry of Health), Peking University, Beijing, 100191, China
| | - Hao Yan
- Institute of Mental Health, Peking University Sixth Hospital, Beijing, 100191, China. .,National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health (Ministry of Health), Peking University, Beijing, 100191, China.
| | - Dai Zhang
- Institute of Mental Health, Peking University Sixth Hospital, Beijing, 100191, China. .,National Clinical Research Center for Mental Disorders and Key Laboratory of Mental Health (Ministry of Health), Peking University, Beijing, 100191, China. .,Peking University-Tsinghua University Joint Center for Life Sciences/ PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, 100871, China.
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37
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White Matter Integrity in Genetic High-Risk Individuals and First-Episode Schizophrenia Patients: Similarities and Disassociations. BIOMED RESEARCH INTERNATIONAL 2017; 2017:3107845. [PMID: 28401151 PMCID: PMC5376415 DOI: 10.1155/2017/3107845] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Accepted: 02/16/2017] [Indexed: 02/01/2023]
Abstract
White matter (WM) neuroimaging studies have shown varied findings at different stages of schizophrenia (SZ). Understanding these variations may elucidate distinct markers of genetic vulnerability and conversion to psychosis. To examine the similarities and differences in WM connectivity between those at-risk for and in early stages of SZ, a cross-sectional diffusion tensor imaging study of 48 individuals diagnosed with first-episode SZ (FE-SZ), 37 nonpsychotic individuals at a high genetic risk of SZ (GHR-SZ), and 67 healthy controls (HC) was conducted. Decreased fractional anisotropy (FA) in the corpus callosum (CC), anterior cingulum (AC), and uncinate fasciculus (UF) was observed in both the GHR-SZ and FE-SZ groups, while decreased FAs in the superior longitudinal fasciculus (SLF) and the fornix were only seen in the FE-SZ participants. Additionally, both GHR-SZ and FE-SZ showed worse executive performance than HC. The left SLF III FA was significantly positively correlated with hallucinations, and right SLF II was positively correlated with thought disorder. The presence of shared WM deficits in both FE-SZ and GHR-SZ individuals may reflect the genetic liability to SZ, while the disparate FA changes in the FE-SZ group may represent symptom-generating circuitry that mediates perceptual and cognitive disturbances of SZ and ultimately culminates in the onset of psychotic episodes.
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38
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Waltzman D, Knowlton BJ, Cohen JR, Bookheimer SY, Bilder RM, Asarnow RF. DTI microstructural abnormalities in adolescent siblings of patients with childhood-onset schizophrenia. Psychiatry Res Neuroimaging 2016; 258:23-29. [PMID: 27829189 DOI: 10.1016/j.pscychresns.2016.10.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 10/25/2016] [Accepted: 10/28/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Dana Waltzman
- War Related Illness and Injury Study Center, Veterans Affairs Palo Alto Health Care System (VAPAHCS), United States; Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, United States.
| | | | - Jessica Rachel Cohen
- Department of Psychology and Neurosciences, University of North Carolina at Chapel Hill, United States
| | - Susan Yost Bookheimer
- David Geffen School of Medicine at University of California Los Angeles, United States
| | - Robert Martin Bilder
- David Geffen School of Medicine at University of California Los Angeles, United States
| | - Robert Franklin Asarnow
- Department of Psychology, University of California Los Angeles, United States; David Geffen School of Medicine at University of California Los Angeles, United States
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Lee JS, Kim CY, Joo YH, Newell D, Bouix S, Shenton ME, Kubicki M. Increased diffusivity in gray matter in recent onset schizophrenia is associated with clinical symptoms and social cognition. Schizophr Res 2016; 176:144-150. [PMID: 27554199 PMCID: PMC5392041 DOI: 10.1016/j.schres.2016.08.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/09/2016] [Accepted: 08/11/2016] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Diffusion weighted MRI (dMRI) is a method sensitive to pathological changes affecting tissue microstructure. Most dMRI studies in schizophrenia, however, have focused solely on white matter. There is a possibility, however, that subtle changes in diffusivity exist in gray matter (GM). Accordingly, we investigated diffusivity in GM in patients with recent onset schizophrenia. METHODS We enrolled 45 patients and 21 age and sex-matched healthy controls. All subjects were evaluated using the short form of the Wechsler Adult Intelligence Scale, the Positive and Negative Syndrome Scale (PANSS), and the video based social cognition scale. DMRI and T1W images were acquired on a 3 Tesla magnet, and mean Fractional Anisotropy (FA), Trace (TR) and volume were calculated for each of the 68 cortical GM Regions of Interest parcellated using FreeSurfer. RESULTS There was no significant difference of FA and GM volume between groups after Bonferroni correction. For the dMRI measures, however, patients evinced increased TR in the left bank of the superior temporal sulcus, the right inferior parietal, the right inferior temporal, and the right middle temporal gyri. In addition, higher TR in the right middle temporal gyrus and the right inferior temporal gyrus, respectively, was associated with decreased social function and higher PANSS score in patients with schizophrenia. CONCLUSION This study demonstrates high sensitivity of dMRI to subtle pathology in GM in recent onset schizophrenia, as well as an association between increased diffusivity in temporal GM regions and abnormalities in social cognition and exacerbation of psychiatric symptoms.
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Affiliation(s)
- Jung Sun Lee
- Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea,Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Chang-Yoon Kim
- Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yeon Ho Joo
- Department of Psychiatry, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dominick Newell
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Sylvain Bouix
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Martha E. Shenton
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA,VA Boston Healthcare System, Brockton Division, Brocton, MA, USA,Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Marek Kubicki
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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40
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Wang C, Ji F, Hong Z, Poh JS, Krishnan R, Lee J, Rekhi G, Keefe RSE, Adcock RA, Wood SJ, Fornito A, Pasternak O, Chee MWL, Zhou J. Disrupted salience network functional connectivity and white-matter microstructure in persons at risk for psychosis: findings from the LYRIKS study. Psychol Med 2016; 46:2771-2783. [PMID: 27396386 PMCID: PMC5358474 DOI: 10.1017/s0033291716001410] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 05/12/2016] [Accepted: 05/16/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Salience network (SN) dysconnectivity has been hypothesized to contribute to schizophrenia. Nevertheless, little is known about the functional and structural dysconnectivity of SN in subjects at risk for psychosis. We hypothesized that SN functional and structural connectivity would be disrupted in subjects with At-Risk Mental State (ARMS) and would be associated with symptom severity and disease progression. METHOD We examined 87 ARMS and 37 healthy participants using both resting-state functional magnetic resonance imaging and diffusion tensor imaging. Group differences in SN functional and structural connectivity were examined using a seed-based approach and tract-based spatial statistics. Subject-level functional connectivity measures and diffusion indices of disrupted regions were correlated with CAARMS scores and compared between ARMS with and without transition to psychosis. RESULTS ARMS subjects exhibited reduced functional connectivity between the left ventral anterior insula and other SN regions. Reduced fractional anisotropy (FA) and axial diffusivity were also found along white-matter tracts in close proximity to regions of disrupted functional connectivity, including frontal-striatal-thalamic circuits and the cingulum. FA measures extracted from these disrupted white-matter regions correlated with individual symptom severity in the ARMS group. Furthermore, functional connectivity between the bilateral insula and FA at the forceps minor were further reduced in subjects who transitioned to psychosis after 2 years. CONCLUSIONS Our findings support the insular dysconnectivity of the proximal SN hypothesis in the early stages of psychosis. Further developed, the combined structural and functional SN assays may inform the prognosis of persons at-risk for psychosis.
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Affiliation(s)
- C. Wang
- Center for Cognitive Neuroscience,
Neuroscience and Behavioral Disorder Program, Duke-NUS
Medical School, National University of Singapore,
Singapore
| | - F. Ji
- Center for Cognitive Neuroscience,
Neuroscience and Behavioral Disorder Program, Duke-NUS
Medical School, National University of Singapore,
Singapore
| | - Z. Hong
- Center for Cognitive Neuroscience,
Neuroscience and Behavioral Disorder Program, Duke-NUS
Medical School, National University of Singapore,
Singapore
| | - J. S. Poh
- Center for Cognitive Neuroscience,
Neuroscience and Behavioral Disorder Program, Duke-NUS
Medical School, National University of Singapore,
Singapore
| | - R. Krishnan
- Center for Cognitive Neuroscience,
Neuroscience and Behavioral Disorder Program, Duke-NUS
Medical School, National University of Singapore,
Singapore
| | - J. Lee
- Research Division,
Institute of Mental Health, Singapore
- Office of Clinical Sciences,
Duke-NUS Medical School, Singapore
| | - G. Rekhi
- Research Division,
Institute of Mental Health, Singapore
| | - R. S. E. Keefe
- Department of Psychiatry and Behavioral
Sciences, Duke University, Durham,
NC, USA
| | - R. A. Adcock
- Department of Psychiatry and Behavioral
Sciences, Duke University, Durham,
NC, USA
- Center for Cognitive Neuroscience,
Duke University, Durham, NC,
USA
| | - S. J. Wood
- School of Psychology,
University of Birmingham, Edgbaston,
UK
- Department of Psychiatry,
Melbourne Neuropsychiatry Centre, University of
Melbourne and Melbourne Health, Victoria,
Australia
| | - A. Fornito
- Monash Clinical and Imaging
Neuroscience, School of Psychology and Psychiatry & Monash
Biomedical Imaging, Monash University,
Australia
| | - O. Pasternak
- Departments of Psychiatry and Radiology,
Brigham and Women's Hospital, Harvard Medical
School, Boston, MA, USA
| | - M. W. L. Chee
- Center for Cognitive Neuroscience,
Neuroscience and Behavioral Disorder Program, Duke-NUS
Medical School, National University of Singapore,
Singapore
| | - J. Zhou
- Center for Cognitive Neuroscience,
Neuroscience and Behavioral Disorder Program, Duke-NUS
Medical School, National University of Singapore,
Singapore
- Clinical Imaging Research Centre, the Agency for
Science, Technology and Research and National University of
Singapore, Singapore
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O'Hanlon E, Howley S, Prasad S, McGrath J, Leemans A, McDonald C, Garavan H, Murphy KC. Multimodal MRI reveals structural connectivity differences in 22q11 deletion syndrome related to impaired spatial working memory. Hum Brain Mapp 2016; 37:4689-4705. [PMID: 27511297 DOI: 10.1002/hbm.23337] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 05/09/2016] [Accepted: 07/25/2016] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION Impaired spatial working memory is a core cognitive deficit observed in people with 22q11 Deletion syndrome (22q11DS) and has been suggested as a candidate endophenotype for schizophrenia. However, to date, the neuroanatomical mechanisms describing its structural and functional underpinnings in 22q11DS remain unclear. We quantitatively investigate the cognitive processes and associated neuroanatomy of spatial working memory in people with 22q11DS compared to matched controls. We examine whether there are significant between-group differences in spatial working memory using task related fMRI, Voxel based morphometry and white matter fiber tractography. MATERIALS AND METHODS Multimodal magnetic resonance imaging employing functional, diffusion and volumetric techniques were used to quantitatively assess the cognitive and neuroanatomical features of spatial working memory processes in 22q11DS. Twenty-six participants with genetically confirmed 22q11DS aged between 9 and 52 years and 26 controls aged between 8 and 46 years, matched for age, gender, and handedness were recruited. RESULTS People with 22q11DS have significant differences in spatial working memory functioning accompanied by a gray matter volume reduction in the right precuneus. Gray matter volume was significantly correlated with task performance scores in these areas. Tractography revealed extensive differences along fibers between task-related cortical activations with pronounced differences localized to interhemispheric commissural fibers within the parietal section of the corpus callosum. CONCLUSIONS Abnormal spatial working memory in 22q11DS is associated with aberrant functional activity in conjunction with gray and white matter structural abnormalities. These anomalies in discrete brain regions may increase susceptibility to the development of psychiatric disorders such as schizophrenia. Hum Brain Mapp 37:4689-4705, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Erik O'Hanlon
- Department of Psychiatry, Royal College of Surgeons in Ireland, Educational and Research Centre, Beaumont Hospital, Dublin 9, Ireland.,School of Psychology and Institute of Neuroscience, Trinity College, Dublin 2, Ireland
| | - Sarah Howley
- Department of Psychiatry, Royal College of Surgeons in Ireland, Educational and Research Centre, Beaumont Hospital, Dublin 9, Ireland
| | - Sarah Prasad
- Department of Psychiatry, Royal College of Surgeons in Ireland, Educational and Research Centre, Beaumont Hospital, Dublin 9, Ireland
| | - Jane McGrath
- School of Psychology and Institute of Neuroscience, Trinity College, Dublin 2, Ireland
| | - Alexander Leemans
- Image Sciences Institute, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Colm McDonald
- Department of Psychiatry, National University of Ireland, Galway, Ireland
| | - Hugh Garavan
- School of Psychology and Institute of Neuroscience, Trinity College, Dublin 2, Ireland.,Departments of Psychiatry and Psychology, University of Vermont, Vermont, USA
| | - Kieran C Murphy
- Department of Psychiatry, Royal College of Surgeons in Ireland, Educational and Research Centre, Beaumont Hospital, Dublin 9, Ireland
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Poletti S, Mazza E, Bollettini I, Locatelli C, Cavallaro R, Smeraldi E, Benedetti F. Adverse childhood experiences influence white matter microstructure in patients with schizophrenia. Psychiatry Res 2015; 234:35-43. [PMID: 26341951 DOI: 10.1016/j.pscychresns.2015.08.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 07/15/2015] [Accepted: 08/13/2015] [Indexed: 12/18/2022]
Abstract
Integrity of brain white matter (WM) tracts in adulthood could be detrimentally affected by exposure to adverse childhood experiences (ACE). Changes of diffusion tensor imaging (DTI) measures suggesting WM disruption have been reported in patients with schizophrenia together with a history of childhood maltreatment. We therefore hypothesized that ACE could be associated with altered DTI measures of WM integrity in patients with schizophrenia. We tested this hypothesis in 83 schizophrenia patients using whole brain tract-based spatial statistics in the WM skeleton with threshold-free cluster enhancement of DTI measures of WM microstructure: axial, radial, and mean diffusivity (MD), and fractional anisotropy (FA). We observed an inverse correlation between severity of ACE and DTI measures of FA, and a positive correlation with MD in several WM tracts including corona radiata, thalamic radiations, corpus callosum, cingulum bundle, superior longitudinal fasciculus, inferior fronto-occipital fasciculus, uncinate fasciculus. Lower FA and higher MD are indexes of a reduction in fibre coherence and integrity. The association of ACE to reduced FA and increased MD in key WM tracts contributing to the functional integrity of the brain suggests that ACE might contribute to the pathophysiology of schizophrenia through a detrimental action on structural connectivity in critical cortico-limbic networks.
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Affiliation(s)
- Sara Poletti
- Department of Clinical Neurosciences, Scientific Institute Ospedale San Raffaele, Milan, Italy; C.E.R.M.A.C. (Centro di Eccellenza Risonanza Magnetica ad Alto Campo), University Vita-Salute San Raffaele, Milan, Italy.
| | - Elena Mazza
- Department of Clinical Neurosciences, Scientific Institute Ospedale San Raffaele, Milan, Italy
| | - Irene Bollettini
- Department of Clinical Neurosciences, Scientific Institute Ospedale San Raffaele, Milan, Italy; C.E.R.M.A.C. (Centro di Eccellenza Risonanza Magnetica ad Alto Campo), University Vita-Salute San Raffaele, Milan, Italy
| | - Clara Locatelli
- Department of Clinical Neurosciences, Scientific Institute Ospedale San Raffaele, Milan, Italy; C.E.R.M.A.C. (Centro di Eccellenza Risonanza Magnetica ad Alto Campo), University Vita-Salute San Raffaele, Milan, Italy
| | - Roberto Cavallaro
- Department of Clinical Neurosciences, Scientific Institute Ospedale San Raffaele, Milan, Italy
| | - Enrico Smeraldi
- Department of Clinical Neurosciences, Scientific Institute Ospedale San Raffaele, Milan, Italy; C.E.R.M.A.C. (Centro di Eccellenza Risonanza Magnetica ad Alto Campo), University Vita-Salute San Raffaele, Milan, Italy
| | - Francesco Benedetti
- Department of Clinical Neurosciences, Scientific Institute Ospedale San Raffaele, Milan, Italy; C.E.R.M.A.C. (Centro di Eccellenza Risonanza Magnetica ad Alto Campo), University Vita-Salute San Raffaele, Milan, Italy
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Savadjiev P, Seidman LJ, Thermenos H, Keshavan M, Whitfield-Gabrieli S, Crow TJ, Kubicki M. Sexual dimorphic abnormalities in white matter geometry common to schizophrenia and non-psychotic high-risk subjects: Evidence for a neurodevelopmental risk marker? Hum Brain Mapp 2015; 37:254-61. [PMID: 26467751 DOI: 10.1002/hbm.23026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 09/30/2015] [Accepted: 10/04/2015] [Indexed: 12/23/2022] Open
Abstract
The characterization of neurodevelopmental aspects of brain alterations require neuroimaging methods that reflect correlates of neurodevelopment, while being robust to other progressive pathological processes. Newly developed neuroimaging methods for measuring geometrical features of the white matter fall exactly into this category. Our recent work shows that such features, measured in the anterior corpus callosum in diffusion MRI data, correlate with psychosis symptoms in patients with adolescent onset schizophrenia and subside a reversal of normal sexual dimorphism. Here, we test the hypothesis that similar developmental deviations will also be present in nonpsychotic subjects at familial high risk (FHR) for schizophrenia, due to genetic predispositions. Demonstrating such changes would provide a strong indication of neurodevelopmental deviation extant before, and independent of pathological changes occurring after disease onset. We examined the macrostructural geometry of corpus callosum white matter in diffusion MRI data of 35 non-psychotic subjects with genetic (familial) risk for schizophrenia, and 26 control subjects, both male and female. We report a reversal of normal sexual dimorphism in callosal white matter geometry consistent with recent results in adolescent onset schizophrenia. This pattern may be indicative of an error in neurogenesis and a possible trait marker of schizophrenia.
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Affiliation(s)
- Peter Savadjiev
- Department of Psychiatry, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Larry J Seidman
- Massachusetts Mental Health Center, Division of Public Psychiatry, Boston, Massachusetts.,Department of Psychiatry, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Heidi Thermenos
- Massachusetts Mental Health Center, Division of Public Psychiatry, Boston, Massachusetts.,Department of Psychiatry, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Matcheri Keshavan
- Department of Psychiatry, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Susan Whitfield-Gabrieli
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Tim J Crow
- SANE POWIC, University Department of Psychiatry, Warneford Hospital, Oxford, United Kingdom
| | - Marek Kubicki
- Department of Psychiatry, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts.,Department of Psychiatry and Radiology, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts
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White matter structure in young adults with familial risk for psychosis - The Oulu Brain and Mind Study. Psychiatry Res 2015; 233:388-93. [PMID: 26231121 DOI: 10.1016/j.pscychresns.2015.06.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 01/21/2015] [Accepted: 06/27/2015] [Indexed: 01/05/2023]
Abstract
According to the disconnectivity model, disruptions in neural connectivity play an essential role in the pathology of schizophrenia. The aim of this study was to determine whether these abnormalities are present in young adults with familial risk (FR) for psychosis in the general population based sample. We used diffusion tensor imaging (DTI) and tract-based spatial statistics to compare whole-brain fractional anisotropy, mean diffusivity, and axial and radial diffusion in 47 (17 males) FR subjects to 51 controls (17 males). All the participants were aged between 20 and 25 years and were members of the Northern Finland Birth Cohort 1986 (Oulu Brain and Mind Study). Region of interest analyses were conducted for 12 tracts. Separately, we analysed whole-brain FA for the subgroup with FR for schizophrenia (n=13) compared with 13 gender-matched controls. Contrary to our expectations there were no differences in any of the DTI measures between FR and control groups. This suggests that white matter abnormalities may not be a genetic feature for risk of psychosis and preceding the onset of a psychotic disorder. Our findings do not support the theory of disconnectivity as a primary sign of psychosis in young adults with FR for the illness.
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45
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Bakhshi K, Chance S. The neuropathology of schizophrenia: A selective review of past studies and emerging themes in brain structure and cytoarchitecture. Neuroscience 2015; 303:82-102. [DOI: 10.1016/j.neuroscience.2015.06.028] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 06/16/2015] [Accepted: 06/17/2015] [Indexed: 01/12/2023]
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46
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Schizophrenia and bipolar disorder: The road from similarities and clinical heterogeneity to neurobiological types. Clin Chim Acta 2015; 449:49-59. [DOI: 10.1016/j.cca.2015.02.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 02/13/2015] [Indexed: 01/06/2023]
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47
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The role of the thalamus in schizophrenia from a neuroimaging perspective. Neurosci Biobehav Rev 2015; 54:57-75. [DOI: 10.1016/j.neubiorev.2015.01.013] [Citation(s) in RCA: 122] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 12/19/2014] [Accepted: 01/12/2015] [Indexed: 02/06/2023]
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Reduced fronto-striatal white matter integrity in schizophrenia patients and unaffected siblings: a DTI study. NPJ SCHIZOPHRENIA 2015; 1:15001. [PMID: 27336028 PMCID: PMC4849442 DOI: 10.1038/npjschz.2015.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 12/19/2014] [Accepted: 12/23/2014] [Indexed: 01/03/2023]
Abstract
Background: Schizophrenia is characterized by impairments in the fronto–striatal network. Underlying these impairments may be disruptions in anatomical pathways connecting frontal and striatal regions. However, the specifics of these disruptions remain unclear and whether these impairments are related to the genetic vulnerability of schizophrenia is not known. Methods: Here, we investigated fronto–striatal tract connections in 24 schizophrenia patients, 30 unaffected siblings, and 58 healthy controls using diffusion tensor imaging. Mean fractional anisotropy (FA) was calculated for tracts connecting the striatum with frontal cortex regions including the dorsolateral prefrontal cortex (DLPFC), medial orbital frontal cortex, and inferior frontal gyrus. Specifically, the striatum was divided into three subregions (caudate nucleus, putamen, and nucleus accumbens) and mean FA was computed for tracts originating from these striatal subregions. Results: We found no differences between patients, siblings, and controls in mean FA when taking the whole striatum as a seed region. However, subregion analyses showed reduced FA in the tract connecting the left nucleus accumbens and left DLPFC in both patients (P=0.0003) and siblings (P=0.0008) compared with controls. Conclusions: The result of reduced FA in the tract connecting the left nucleus accumbens and left DLPFC indicates a possible reduction of white matter integrity, commonly associated with schizophrenia. As both patients and unaffected siblings show reduced FA, this may represent a vulnerability factor for schizophrenia.
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Compromised small-world efficiency of structural brain networks in schizophrenic patients and their unaffected parents. Neurosci Bull 2015; 31:275-87. [PMID: 25813916 DOI: 10.1007/s12264-014-1518-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 01/14/2015] [Indexed: 10/23/2022] Open
Abstract
Several lines of evidence suggest that efficient information integration between brain regions is disrupted in schizophrenia. Abnormalities in white matter tracts that interconnect brain regions may be directly relevant to this pathophysiological process. As a complex mental disorder with high heritability, mapping abnormalities in patients and their first-degree relatives may help to disentangle the risk factors for schizophrenia. We established a weighted network model of white matter connections using diffusion tensor imaging in 25 nuclear families with schizophrenic probands (19 patients and 41 unaffected parents) and two unrelated groups of normal controls (24 controls matched with patients and 26 controls matched with relatives). The patient group showed lower global efficiency and local efficiency. The decreased regional efficiency was localized in hubs such as the bilateral frontal cortices, bilateral anterior cingulate cortices, and left precuneus. The global efficiency was negatively correlated with cognition scores derived from a 5-factor model of schizophrenic psychopathology. We also found that unaffected parents displayed decreased regional efficiency in the right temporal cortices, left supplementary motor area, left superior temporal pole, and left thalamus. The global efficiency tended to be lower in unaffected parents. Our data suggest that (1) the global efficiency loss in neuroanatomical networks may be associated with the cognitive disturbances in schizophrenia; and (2) genetic vulnerability to schizophrenia may influence the anatomical organization of an individual's brain networks.
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Gupta CN, Chen J, Liu J, Damaraju E, Wright C, Perrone-Bizzozero NI, Pearlson G, Luo L, Michael AM, Turner JA, Calhoun VD. Genetic markers of white matter integrity in schizophrenia revealed by parallel ICA. Front Hum Neurosci 2015; 9:100. [PMID: 25784871 PMCID: PMC4347454 DOI: 10.3389/fnhum.2015.00100] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Accepted: 02/10/2015] [Indexed: 11/13/2022] Open
Abstract
It is becoming a consensus that white matter integrity is compromised in schizophrenia (SZ), however the underlying genetics remains elusive. Evidence suggests a polygenic basis of the disorder, which involves various genetic variants with modest individual effect sizes. In this work, we used a multivariate approach, parallel independent component analysis (P-ICA), to explore the genetic underpinnings of white matter abnormalities in SZ. A pre-filtering step was first applied to locate 6527 single nucleotide polymorphisms (SNPs) discriminating patients from controls with a nominal uncorrected p-value of 0.01. These potential susceptibility loci were then investigated for associations with fractional anisotropy (FA) images in a cohort consisting of 73 SZ patients and 87 healthy controls (HC). A significant correlation (r = −0.37, p = 1.25 × 10−6) was identified between one genetic factor and one FA component after controlling for scanning site, ethnicity, age, and sex. The identified FA-SNP association remained stable in a 10-fold validation. A 5000-run permutation test yielded a p-value of 2.00 × 10−4. The FA component reflected decreased white matter integrity in the forceps major for SZ patients. The SNP component was overrepresented in genes whose products are involved in corpus callosum morphology (e.g., CNTNAP2, NPAS3, and NFIB) as well as canonical pathways of synaptic long term depression and protein kinase A signaling. Taken together, our finding delineates a part of genetic architecture underlying SZ-related FA reduction, emphasizing the important role of genetic variants involved in neural development.
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Affiliation(s)
| | - Jiayu Chen
- The Mind Research Network Albuquerque, NM, USA
| | - Jingyu Liu
- The Mind Research Network Albuquerque, NM, USA ; Department of Electrical and Computer Engineering, University of New Mexico Albuquerque, NM, USA
| | | | - Carrie Wright
- The Mind Research Network Albuquerque, NM, USA ; Department of Neurosciences, School of Medicine, University of New Mexico Albuquerque, NM, USA
| | | | - Godfrey Pearlson
- Departments of Psychiatry, Yale University School of Medicine New Haven, CT, USA ; Olin Neuropsychiatry Research Center, Institute of Living Hartford, CT, USA
| | - Li Luo
- Department of Internal Medicine, University of New Mexico Albuquerque, NM, USA
| | | | - Jessica A Turner
- The Mind Research Network Albuquerque, NM, USA ; Department of Psychology and Neuroscience Institute, Georgia State University Atlanta, GA, USA
| | - Vince D Calhoun
- The Mind Research Network Albuquerque, NM, USA ; Department of Electrical and Computer Engineering, University of New Mexico Albuquerque, NM, USA ; Department of Neurosciences, School of Medicine, University of New Mexico Albuquerque, NM, USA ; Departments of Psychiatry, Yale University School of Medicine New Haven, CT, USA
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