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Leong K, Chan P, Ong L, Zwicker A, Willan S, Lam RW, McGirr A. A Randomized Sham-controlled Trial of 1-Hz and 10-Hz Repetitive Transcranial Magnetic Stimulation (rTMS) of the Right Dorsolateral Prefrontal Cortex in Civilian Post-traumatic Stress Disorder: Un essai randomisé contrôlé simulé de stimulation magnétique transcrânienne repetitive (SMTr) de 1 Hz et 10 Hz du cortex préfrontal dorsolatéral droit dans le trouble de stress post-traumatique chez des civils. CANADIAN JOURNAL OF PSYCHIATRY. REVUE CANADIENNE DE PSYCHIATRIE 2020; 65:770-778. [PMID: 32379487 PMCID: PMC7564694 DOI: 10.1177/0706743720923064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Despite effective psychological and pharmacological treatments, there is a large unmet burden of illness in post-traumatic stress disorder (PTSD). Repetitive transcranial magnetic stimulation (rTMS) is a noninvasive intervention and a putative treatment strategy for PTSD. The evidence base to date suggests that rTMS targeting the dorsolateral prefrontal cortex (DLPFC), in particular the right DLPFC, leads to improvements in PTSD symptoms. However, optimal stimulation parameters have yet to be determined. In this study, we examine the efficacy of high- and low-frequency rTMS of the right DLPFC using a randomized, double-blind, sham-controlled design in civilian PTSD. METHODS We conducted a 2-week single-site randomized sham-controlled trial of rTMS targeting the right DLPFC. We recruited civilians aged 19 to 70 with PTSD and randomized subjects with allocation concealment to daily 1-Hz rTMS, 10-Hz rTMS, or sham rTMS. The primary outcome was improvement in Clinician Administered PTSD Scale-IV (CAPS-IV). Secondary outcomes included change in depressive and anxiety symptoms. RESULTS We recruited 31 civilians with PTSD. One 1-Hz-treated patient developed transient suicidal ideation. Analyses revealed significant improvement in CAPS-IV symptoms in the 1-Hz group relative to sham (Hedges' g = -1.07) but not in the 10-Hz group. This was not attributable to changes in anxious or depressive symptomatology. Ten-Hz stimulation appeared to improve depressive symptoms compared to sham. CONCLUSION Low-frequency rTMS is efficacious in the treatment of civilian PTSD. Our data suggest that high-frequency rTMS of the right DLPFC is worthy of additional investigation for the treatment of depressive symptoms comorbid with PTSD.
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Affiliation(s)
- Kawai Leong
- Department of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada.,380154Vancouver General Hospital, British Columbia, Canada
| | - Peter Chan
- Department of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada.,380154Vancouver General Hospital, British Columbia, Canada.,8166Brainstim Healthcare, Vancouver, British Columbia, Canada
| | - Larry Ong
- Department of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada.,380154Vancouver General Hospital, British Columbia, Canada
| | - Amy Zwicker
- Department of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada.,380154Vancouver General Hospital, British Columbia, Canada
| | - Sharon Willan
- 380154Vancouver General Hospital, British Columbia, Canada
| | - Raymond W Lam
- Department of Psychiatry, 8166University of British Columbia, Vancouver, British Columbia, Canada
| | - Alexander McGirr
- Department of Psychiatry, 2129University of Calgary, Alberta, Canada.,Hotchkiss Brain Institute, 2129University of Calgary, Alberta, Canada.,Mathison Centre for Mental Health Research and Education, Calgary, Alberta, Canada
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Wang X, Xu Z, Zhao F, Lin KJ, Foster JB, Xiao T, Kung N, Askwith CC, Bruno JP, Valentini V, Hodgetts KJ, Lin CLG. Restoring tripartite glutamatergic synapses: A potential therapy for mood and cognitive deficits in Gulf War illness. Neurobiol Stress 2020; 13:100240. [PMID: 33344696 PMCID: PMC7739039 DOI: 10.1016/j.ynstr.2020.100240] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 07/05/2020] [Accepted: 07/05/2020] [Indexed: 01/13/2023] Open
Abstract
Gulf War illness is associated with a combination of exposure to war-related chemical agents and traumatic stress. Currently, there are no effective treatments, and the pathophysiology remains elusive. Neurological problems are among the most commonly reported symptoms. In this study, we investigated the glutamatergic system in the hippocampi of mice exposed to war-related chemical agents and stress. Mice developed Gulf War illness-like symptoms, including mood deficits, cognitive impairments, and fatigue. They exhibited the following pathological changes in hippocampi: elevated extracellular glutamate levels, impaired glutamatergic synapses, astrocyte atrophy, loss of interneurons, and decreased neurogenesis. LDN/OSU-215111 is a small-molecule that can strengthen the structure and function of both the astrocytic processes and the glutamatergic synapses that together form the tripartite synapses. We found that LDN/OSU-215111 effectively prevented the development of mood and cognitive deficits in mice when treatment was implemented immediately following the exposure. Moreover, when symptoms were already present, LDN/OSU-215111 still significantly ameliorated these deficits; impressively, benefits were sustained one month after treatment cessation, indicating disease modification. LDN/OSU-215111 effectively normalized hippocampal pathological changes. Overall, this study provides strong evidence that restoration of tripartite glutamatergic synapses by LDN/OSU-215111 is a potential therapy for Gulf War illness.
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Key Words
- BBB, Blood brain barrier
- CA, Cornu ammonis
- DCX, Doublecortin
- DEET, N, N-Diethyl-meta-toluamide
- DG, Dentate gyrus
- EAAT2, Excitatory amino acid transporter 2
- GABA, γ-aminobutyric acid
- GFAP, glial fibrillary acidic protein
- GWI, gulf war illness
- Gulf war illness
- LTP, Long term potentiation
- Mood deficits and cognitive impairments
- PB, Pyridostigmine bromide
- PSD95, Postsynaptic density protein 95
- PV, Parvalbumin
- TBS, Theta burst stimulation
- Therapy
- Traumatic stress
- Tripartite glutamatergic synapses
- fEPSP, field excitatory postsynaptic potentials
- sEPSC/mEPSC, Spontaneous/miniature excitatory postsynaptic current
- sIPSC/mIPSC, Spontaneous/miniature inhibitory postsynaptic current
- vGAT, Vesicular inhibitory amino acid transporter
- vGLUT1, Vesicular glutamate transporter 1
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Affiliation(s)
- Xueqin Wang
- Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Zan Xu
- Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Fangli Zhao
- Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Kuanhung J. Lin
- Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Joshua B. Foster
- Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Tianqi Xiao
- Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Nydia Kung
- Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Candice C. Askwith
- Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - John P. Bruno
- Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH, USA
- Department of Psychology, College of Arts and Sciences, The Ohio State University, Columbus, OH, USA
| | - Valentina Valentini
- Department of Psychology, College of Arts and Sciences, The Ohio State University, Columbus, OH, USA
- Department of Biomedical Sciences, University of Cagliari, Italy
| | - Kevin J. Hodgetts
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA
| | - Chien-liang Glenn Lin
- Department of Neuroscience, College of Medicine, The Ohio State University, Columbus, OH, USA
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Schmidt S, Gull S, Herrmann KH, Boehme M, Irintchev A, Urbach A, Reichenbach JR, Klingner CM, Gaser C, Witte OW. Experience-dependent structural plasticity in the adult brain: How the learning brain grows. Neuroimage 2020; 225:117502. [PMID: 33164876 DOI: 10.1016/j.neuroimage.2020.117502] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/31/2020] [Accepted: 10/17/2020] [Indexed: 12/12/2022] Open
Abstract
Volumetric magnetic resonance imaging studies have shown that intense learning can be associated with grey matter volume increases in the adult brain. The underlying mechanisms are poorly understood. Here we used monocular deprivation in rats to analyze the mechanisms underlying use-dependent grey matter increases. Optometry for quantification of visual acuity was combined with volumetric magnetic resonance imaging and microscopic techniques in longitudinal and cross-sectional studies. We found an increased spatial vision of the open eye which was associated with a transient increase in the volumes of the contralateral visual and lateral entorhinal cortex. In these brain areas dendrites of neurons elongated, and there was a strong increase in the number of spines, the targets of synapses, which was followed by spine maturation and partial pruning. Astrocytes displayed a transient pronounced swelling and underwent a reorganization of their processes. The use-dependent increase in grey matter corresponded predominantly to the swelling of the astrocytes. Experience-dependent increase in brain grey matter volume indicates a gain of structure plasticity with both synaptic and astrocyte remodeling.
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Affiliation(s)
- Silvio Schmidt
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, D07747 Jena, Germany; Brain Imaging Center Jena, Jena University Hospital, Am Klinikum 1, D07747 Jena, Germany
| | - Sidra Gull
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, D07747 Jena, Germany
| | - Karl-Heinz Herrmann
- Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital, Philosophenweg 3, D-07743 Jena, Germany
| | - Marcus Boehme
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, D07747 Jena, Germany
| | - Andrey Irintchev
- Department of Otorhinolaryngology, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany
| | - Anja Urbach
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, D07747 Jena, Germany
| | - Jürgen R Reichenbach
- Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital, Philosophenweg 3, D-07743 Jena, Germany
| | - Carsten M Klingner
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, D07747 Jena, Germany; Brain Imaging Center Jena, Jena University Hospital, Am Klinikum 1, D07747 Jena, Germany; Biomagnetic Center, Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany
| | - Christian Gaser
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, D07747 Jena, Germany; Brain Imaging Center Jena, Jena University Hospital, Am Klinikum 1, D07747 Jena, Germany; Department of Psychiatry, Jena University Hospital, Philosophenweg 3, D-07743 Jena, Germany
| | - Otto W Witte
- Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, D07747 Jena, Germany; Brain Imaging Center Jena, Jena University Hospital, Am Klinikum 1, D07747 Jena, Germany; Biomagnetic Center, Hans Berger Department of Neurology, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany.
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Ota M, Kanie A, Kobayashi Y, Nakajima A, Sato N, Horikoshi M. Pseudo-continuous arterial spin labeling MRI study of patients with obsessive-compulsive disorder. Psychiatry Res Neuroimaging 2020; 303:111124. [PMID: 32563075 DOI: 10.1016/j.pscychresns.2020.111124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 05/18/2020] [Accepted: 06/11/2020] [Indexed: 10/24/2022]
Abstract
Arterial spin labeling (ASL) magnetic resonance imaging is a novel technique that can measure regional cerebral blood flow (rCBF). Here we used pseudo-continuous ASL (pCASL) to examine the structural and functional imaging data in patients with obsessive-compulsive disorder (OCD). We estimated the gray matter volume imaging and pCASL imaging data by means of a voxel-by-voxel statistical analysis. We evaluated the differences of rCBF and gray matter volume between the OCD patients and healthy subjects. We detected a significant rCBF reduction in OCD patients in the right posterior cingulate extending to the lingual gyrus, thalamus, and hippocampus, and a significant increase in the left temporal gyrus and left frontal white matter region, compared with healthy subjects. We also observed a significant reduction in gray matter volume of OCD patients in the right hippocampus. We also estimated the correlation between the clinical severity of OCD and the rCBF and gray matter volumes, and found significant negative correlations between the severity of illness and the regional gray matter volume in the bilateral anterior cingulate corti. Our study demonstrated significant changes of rCBF in the cortico-striato-thalamo-cortical pathway around the hippocampus in OCD patients. These findings may help to elucidate the pathogenesis of OCD.
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Affiliation(s)
- Miho Ota
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, 4-1-1, Ogawa-Higashi, Kodaira, Tokyo 187-8502, Japan; Department of Neuropsychiatry, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-8576, Japan.
| | - Ayako Kanie
- National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry, 4-1-1, Ogawa-Higashi, Kodaira, Tokyo 187-8502, Japan
| | - Yuki Kobayashi
- National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry, 4-1-1, Ogawa-Higashi, Kodaira, Tokyo 187-8502, Japan
| | - Aiichiro Nakajima
- National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry, 4-1-1, Ogawa-Higashi, Kodaira, Tokyo 187-8502, Japan
| | - Noriko Sato
- Department of Radiology, National Center of Neurology and Psychiatry, 4-1-1, Ogawa-Higashi, Kodaira, Tokyo 187-8502, Japan
| | - Masaru Horikoshi
- National Center for Cognitive Behavior Therapy and Research, National Center of Neurology and Psychiatry, 4-1-1, Ogawa-Higashi, Kodaira, Tokyo 187-8502, Japan
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Boedhoe PSW, van Rooij D, Hoogman M, Twisk JWR, Schmaal L, Abe Y, Alonso P, Ameis SH, Anikin A, Anticevic A, Arango C, Arnold PD, Asherson P, Assogna F, Auzias G, Banaschewski T, Baranov A, Batistuzzo MC, Baumeister S, Baur-Streubel R, Behrmann M, Bellgrove MA, Benedetti F, Beucke JC, Biederman J, Bollettini I, Bose A, Bralten J, Bramati IE, Brandeis D, Brem S, Brennan BP, Busatto GF, Calderoni S, Calvo A, Calvo R, Castellanos FX, Cercignani M, Chaim-Avancini TM, Chantiluke KC, Cheng Y, Cho KIK, Christakou A, Coghill D, Conzelmann A, Cubillo AI, Dale AM, Dallaspezia S, Daly E, Denys D, Deruelle C, Di Martino A, Dinstein I, Doyle AE, Durston S, Earl EA, Ecker C, Ehrlich S, Ely BA, Epstein JN, Ethofer T, Fair DA, Fallgatter AJ, Faraone SV, Fedor J, Feng X, Feusner JD, Fitzgerald J, Fitzgerald KD, Fouche JP, Freitag CM, Fridgeirsson EA, Frodl T, Gabel MC, Gallagher L, Gogberashvili T, Gori I, Gruner P, Gürsel DA, Haar S, Haavik J, Hall GB, Harrison NA, Hartman CA, Heslenfeld DJ, Hirano Y, Hoekstra PJ, Hoexter MQ, Hohmann S, Høvik MF, Hu H, Huyser C, Jahanshad N, Jalbrzikowski M, James A, Janssen J, Jaspers-Fayer F, Jernigan TL, Kapilushniy D, Kardatzki B, Karkashadze G, Kathmann N, Kaufmann C, Kelly C, Khadka S, King JA, Koch K, Kohls G, Konrad K, Kuno M, Kuntsi J, Kvale G, Kwon JS, Lázaro L, Lera-Miguel S, Lesch KP, Hoekstra L, Liu Y, Lochner C, Louza MR, Luna B, Lundervold AJ, Malpas CB, Marques P, Marsh R, Martínez-Zalacaín I, Mataix-Cols D, Mattos P, McCarthy H, McGrath J, Mehta MA, Menchón JM, Mennes M, Martinho MM, Moreira PS, Morer A, Morgado P, Muratori F, Murphy CM, Murphy DGM, Nakagawa A, Nakamae T, Nakao T, Namazova-Baranova L, Narayanaswamy JC, Nicolau R, Nigg JT, Novotny SE, Nurmi EL, Weiss EO, O'Gorman Tuura RL, O'Hearn K, O'Neill J, Oosterlaan J, Oranje B, Paloyelis Y, Parellada M, Pauli P, Perriello C, Piacentini J, Piras F, Piras F, Plessen KJ, Puig O, Ramos-Quiroga JA, Reddy YCJ, Reif A, Reneman L, Retico A, Rosa PGP, Rubia K, Rus OG, Sakai Y, Schrantee A, Schwarz L, Schweren LJS, Seitz J, Shaw P, Shook D, Silk TJ, Simpson HB, Skokauskas N, Soliva Vila JC, Solovieva A, Soreni N, Soriano-Mas C, Spalletta G, Stern ER, Stevens MC, Stewart SE, Sudre G, Szeszko PR, Tamm L, Taylor MJ, Tolin DF, Tosetti M, Tovar-Moll F, Tsuchiyagaito A, van Erp TGM, van Wingen GA, Vance A, Venkatasubramanian G, Vilarroya O, Vives-Gilabert Y, von Polier GG, Walitza S, Wallace GL, Wang Z, Wolfers T, Yoncheva YN, Yun JY, Zanetti MV, Zhou F, Ziegler GC, Zierhut KC, Zwiers MP, Thompson PM, Stein DJ, Buitelaar J, Franke B, van den Heuvel OA. Subcortical Brain Volume, Regional Cortical Thickness, and Cortical Surface Area Across Disorders: Findings From the ENIGMA ADHD, ASD, and OCD Working Groups. Am J Psychiatry 2020; 177:834-843. [PMID: 32539527 PMCID: PMC8296070 DOI: 10.1176/appi.ajp.2020.19030331] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
OBJECTIVE Attention deficit hyperactivity disorder (ADHD), autism spectrum disorder (ASD), and obsessive-compulsive disorder (OCD) are common neurodevelopmental disorders that frequently co-occur. The authors sought to directly compare these disorders using structural brain imaging data from ENIGMA consortium data. METHODS Structural T1-weighted whole-brain MRI data from healthy control subjects (N=5,827) and from patients with ADHD (N=2,271), ASD (N=1,777), and OCD (N=2,323) from 151 cohorts worldwide were analyzed using standardized processing protocols. The authors examined subcortical volume, cortical thickness, and cortical surface area differences within a mega-analytical framework, pooling measures extracted from each cohort. Analyses were performed separately for children, adolescents, and adults, using linear mixed-effects models adjusting for age, sex, and site (and intracranial volume for subcortical and surface area measures). RESULTS No shared differences were found among all three disorders, and shared differences between any two disorders did not survive correction for multiple comparisons. Children with ADHD compared with those with OCD had smaller hippocampal volumes, possibly influenced by IQ. Children and adolescents with ADHD also had smaller intracranial volume than control subjects and those with OCD or ASD. Adults with ASD showed thicker frontal cortices compared with adult control subjects and other clinical groups. No OCD-specific differences were observed across different age groups and surface area differences among all disorders in childhood and adulthood. CONCLUSIONS The study findings suggest robust but subtle differences across different age groups among ADHD, ASD, and OCD. ADHD-specific intracranial volume and hippocampal differences in children and adolescents, and ASD-specific cortical thickness differences in the frontal cortex in adults, support previous work emphasizing structural brain differences in these disorders.
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Affiliation(s)
- Premika S W Boedhoe
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Daan van Rooij
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Martine Hoogman
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Jos W R Twisk
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Lianne Schmaal
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Yoshinari Abe
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Pino Alonso
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Stephanie H Ameis
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Anatoly Anikin
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Alan Anticevic
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Celso Arango
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Paul D Arnold
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Philip Asherson
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Francesca Assogna
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Guillaume Auzias
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Tobias Banaschewski
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Alexander Baranov
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Marcelo C Batistuzzo
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Sarah Baumeister
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Ramona Baur-Streubel
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Marlene Behrmann
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Mark A Bellgrove
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Francesco Benedetti
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Jan C Beucke
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Joseph Biederman
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Irene Bollettini
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Anushree Bose
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Janita Bralten
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Ivanei E Bramati
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Daniel Brandeis
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Silvia Brem
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Brian P Brennan
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Geraldo F Busatto
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Sara Calderoni
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Anna Calvo
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Rosa Calvo
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Francisco X Castellanos
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Mara Cercignani
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Tiffany M Chaim-Avancini
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Kaylita C Chantiluke
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Yuqi Cheng
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Kang Ik K Cho
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Anastasia Christakou
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - David Coghill
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Annette Conzelmann
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Ana I Cubillo
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Anders M Dale
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Sara Dallaspezia
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Eileen Daly
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Damiaan Denys
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Christine Deruelle
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Adriana Di Martino
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Ilan Dinstein
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Alysa E Doyle
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Sarah Durston
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Eric A Earl
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Christine Ecker
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Stefan Ehrlich
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Benjamin A Ely
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Jeffrey N Epstein
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Thomas Ethofer
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Damien A Fair
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Andreas J Fallgatter
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Stephen V Faraone
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Jennifer Fedor
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Xin Feng
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Jamie D Feusner
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Jackie Fitzgerald
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Kate D Fitzgerald
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Jean-Paul Fouche
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Christine M Freitag
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Egill A Fridgeirsson
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Thomas Frodl
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Matt C Gabel
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Louise Gallagher
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Tinatin Gogberashvili
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Ilaria Gori
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Patricia Gruner
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Deniz A Gürsel
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Shlomi Haar
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Jan Haavik
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Geoffrey B Hall
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Neil A Harrison
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Catharina A Hartman
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| | - Dirk J Heslenfeld
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| | - Yoshiyuki Hirano
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| | - Pieter J Hoekstra
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| | - Marcelo Q Hoexter
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| | - Sarah Hohmann
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| | - Marie F Høvik
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| | - Hao Hu
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| | - Chaim Huyser
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| | - Neda Jahanshad
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| | - Maria Jalbrzikowski
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| | - Anthony James
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| | - Joost Janssen
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| | - Fern Jaspers-Fayer
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| | - Terry L Jernigan
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| | - Dmitry Kapilushniy
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| | - Bernd Kardatzki
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| | - Georgii Karkashadze
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| | - Norbert Kathmann
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| | - Christian Kaufmann
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| | - Clare Kelly
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| | - Sabin Khadka
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| | - Joseph A King
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| | - Kathrin Koch
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| | - Gregor Kohls
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| | - Kerstin Konrad
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| | - Masaru Kuno
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| | - Jonna Kuntsi
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| | - Gerd Kvale
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| | - Jun Soo Kwon
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| | - Luisa Lázaro
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| | - Sara Lera-Miguel
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| | - Klaus-Peter Lesch
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| | - Liesbeth Hoekstra
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| | - Yanni Liu
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| | - Christine Lochner
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| | - Beatriz Luna
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| | - Astri J Lundervold
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| | - Charles B Malpas
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| | - Paulo Marques
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| | - Rachel Marsh
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| | - Ignacio Martínez-Zalacaín
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| | - David Mataix-Cols
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| | - Paulo Mattos
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| | - Hazel McCarthy
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| | - Jane McGrath
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| | - Mitul A Mehta
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| | - José M Menchón
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| | - Maarten Mennes
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| | - Mauricio Moller Martinho
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| | - Pedro S Moreira
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| | - Astrid Morer
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| | - Pedro Morgado
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| | - Filippo Muratori
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| | - Clodagh M Murphy
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| | - Declan G M Murphy
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| | - Akiko Nakagawa
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| | - Takashi Nakamae
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| | - Tomohiro Nakao
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| | - Leyla Namazova-Baranova
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Janardhanan C Narayanaswamy
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Rosa Nicolau
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Joel T Nigg
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Stephanie E Novotny
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Erika L Nurmi
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Eileen Oberwelland Weiss
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Ruth L O'Gorman Tuura
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Kirsten O'Hearn
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Joseph O'Neill
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Jaap Oosterlaan
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Bob Oranje
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Yannis Paloyelis
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Mara Parellada
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Paul Pauli
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Chris Perriello
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - John Piacentini
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Fabrizio Piras
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Federica Piras
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Kerstin J Plessen
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Olga Puig
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - J Antoni Ramos-Quiroga
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Y C Janardhan Reddy
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Andreas Reif
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Liesbeth Reneman
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Alessandra Retico
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Pedro G P Rosa
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Katya Rubia
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Oana Georgiana Rus
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Yuki Sakai
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Anouk Schrantee
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Lena Schwarz
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Lizanne J S Schweren
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Jochen Seitz
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Philip Shaw
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Devon Shook
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Tim J Silk
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - H Blair Simpson
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Norbert Skokauskas
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Juan Carlos Soliva Vila
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Anastasia Solovieva
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Noam Soreni
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Carles Soriano-Mas
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Gianfranco Spalletta
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Emily R Stern
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Michael C Stevens
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - S Evelyn Stewart
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Gustavo Sudre
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Philip R Szeszko
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Leanne Tamm
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Margot J Taylor
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - David F Tolin
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Michela Tosetti
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Fernanda Tovar-Moll
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Aki Tsuchiyagaito
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Theo G M van Erp
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Guido A van Wingen
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Alasdair Vance
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Ganesan Venkatasubramanian
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Oscar Vilarroya
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Yolanda Vives-Gilabert
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Georg G von Polier
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Susanne Walitza
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Gregory L Wallace
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Zhen Wang
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Thomas Wolfers
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Yuliya N Yoncheva
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Je-Yeon Yun
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Marcus V Zanetti
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Fengfeng Zhou
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Georg C Ziegler
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Kathrin C Zierhut
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Marcel P Zwiers
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Paul M Thompson
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Dan J Stein
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Jan Buitelaar
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Barbara Franke
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
| | - Odile A van den Heuvel
- The full list of authors in the ENIGMA working groups, author affiliations, author disclosures, and acknowledgments are provided in online supplements
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Takeuchi C, Ishikawa M, Sawano T, Shin Y, Mizuta N, Hasegawa S, Tanaka R, Tsuboi Y, Nakatani J, Sugiura H, Yamagata K, Tanaka H. Dendritic Spine Density is Increased in Arcadlin-deleted Mouse Hippocampus. Neuroscience 2020; 442:296-310. [DOI: 10.1016/j.neuroscience.2020.06.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 05/12/2020] [Accepted: 06/26/2020] [Indexed: 11/28/2022]
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The indirect effect of peer problems on adolescent depression through nucleus accumbens volume alteration. Sci Rep 2020; 10:12870. [PMID: 32733056 PMCID: PMC7392894 DOI: 10.1038/s41598-020-69769-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/13/2020] [Indexed: 11/15/2022] Open
Abstract
Literature suggests that neurobiological factors such as brain structure play an important role in linking social stress with depression in adolescence. We aimed to examine the role of subcortical volumetric alteration in the association between peer problems as one type of social stress and adolescent depression. We hypothesized that there would be indirect effects of peer problems on adolescent depression through subcortical volumetric alteration. Seventy eight adolescents with major depressive disorder (MDD) (age mean [SD] = 14.9 ± 1.5, 56 girls) and 47 healthy controls [14.3 ± 1.4, 26 girls]) participated in this study. High-resolution structural T1 images were collected using the Siemens 3T MR scanner. Subcortical volumes were segmented using the Freesurfer 6.0 package. Peer problems were assessed using the Peer-Victimization Scale and the Bullying-Behavior Scale. There was a significant indirect effect of peer problems on adolescent depression through nucleus accumbens (NAcc) volume alteration, but not through the amygdala and hippocampal volumes. This result supported our model, which stated that peer problems have indirect effects through subcortical volumetric alteration (i.e., increased NAcc volume) on adolescent depression. Our finding suggests that altered NAcc volume may serve as a pathway, through which peer problems as one type of social stressor contribute to adolescent depression.
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Brain regions vulnerable and resistant to aging without Alzheimer's disease. PLoS One 2020; 15:e0234255. [PMID: 32726311 PMCID: PMC7390259 DOI: 10.1371/journal.pone.0234255] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 05/21/2020] [Indexed: 11/19/2022] Open
Abstract
'Normal aging' in the brain refers to age-related changes that occur independent of disease, in particular Alzheimer's disease. A major barrier to mapping normal brain aging has been the difficulty in excluding the earliest preclinical stages of Alzheimer's disease. Here, before addressing this issue we first imaged a mouse model and learn that the best MRI measure of dendritic spine loss, a known pathophysiological driver of normal aging, is one that relies on the combined use of functional and structural MRI. In the primary study, we then deployed the combined functional-structural MRI measure to investigate over 100 cognitively-normal people from 20-72 years of age. Next, to cover the tail end of aging, in secondary analyses we investigated structural MRI acquired from cognitively-normal people, 60-84 years of age, who were Alzheimer's-free via biomarkers. Collectively, the results from the primary functional-structural study, and the secondary structural studies revealed that the dentate gyrus is a hippocampal region differentially affected by aging, and that the entorhinal cortex is a region most resistant to aging. Across the cortex, the primary functional-structural study revealed and that the inferior frontal gyrus is differentially affected by aging, however, the secondary structural studies implicated other frontal cortex regions. Together, the results clarify how normal aging may affect the brain and has possible mechanistic and therapeutic implications.
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Kinzel P, Marx CE, Sollmann N, Hartl E, Guenette JP, Kaufmann D, Bouix S, Pasternak O, Rathi Y, Coleman MJ, van der Kouwe A, Helmer K, Kilts JD, Naylor JC, Morey RA, Shutter L, Andaluz N, Coimbra R, Lang AJ, George MS, McAllister TW, Zafonte R, Stein MB, Shenton ME, Koerte IK. Serum Neurosteroid Levels Are Associated With Cortical Thickness in Individuals Diagnosed With Posttraumatic Stress Disorder and History of Mild Traumatic Brain Injury. Clin EEG Neurosci 2020; 51:285-299. [PMID: 32186207 DOI: 10.1177/1550059420909676] [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] [Indexed: 01/08/2023]
Abstract
Posttraumatic stress disorder (PTSD) co-occurring with mild traumatic brain injury (mTBI) is common in veterans. Worse clinical outcome in those with PTSD has been associated with decreased serum neurosteroid levels. Furthermore, decreased cortical thickness has been associated with both PTSD and mTBI. However, it is not known whether decreased neurosteroids are associated with decreased cortical thickness in PTSD co-occurring with mTBI. This study included 141 individuals divided into the following groups: (a) mTBI group (n = 32 [10 female, 22 male] veterans with a history of mTBI); (b) PTSD + mTBI group (n = 41 [6 female, 35 male] veterans with current PTSD with a history of mTBI); and (c) control group (n = 68 [35 female, 33 male] control participants), which were acquired through the Injury and Traumatic Stress (INTRuST) Clinical Consortium. Subjects underwent clinical assessment, magnetic resonance imaging at 3 T, and serum neurosteroid quantifications of allopregnanolone (ALLO) and pregnenolone (PREGN). Group differences in cortical thickness and associations between serum neurosteroid levels and cortical thickness were investigated. Cortical thickness was decreased in the PTSD + mTBI group compared with the other groups. In the PTSD + mTBI group, decreased cortical thickness was also associated with lower serum ALLO (right superior frontal cortex) and lower serum PREGN (left middle temporal and right orbitofrontal cortex). Cortical thickness in the middle temporal and orbitofrontal cortex was associated with PTSD symptom severity. There were no significant associations between neurosteroids and cortical thickness in the mTBI or control groups. Decreased cortical thickness in individuals with PTSD + mTBI is associated with decreased serum neurosteroid levels and greater PTSD symptom severity. Causality is unclear. However, future studies might investigate whether treatment with neurosteroids could counteract stress-induced neural atrophy in PTSD + mTBI by potentially preserving cortical thickness.
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Affiliation(s)
- Philipp Kinzel
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, Munich, Germany
| | - Christine E Marx
- VA Mid-Atlantic Mental Illness Research and Clinical Center (MIRECC) and Durham VA Medical Center, Durham, NC, USA.,Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Nico Sollmann
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, Munich, Germany.,Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.,TUM-Neuroimaging Center, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Elisabeth Hartl
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, Munich, Germany.,Department of Neurology, Epilepsy Center, University Hospital Munich, Munich, Germany
| | - Jeffrey P Guenette
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, 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
| | - David Kaufmann
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, Munich, Germany.,Department of Radiology, Charité Universitätsmedizin, Berlin, Germany
| | - Sylvain Bouix
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ofer Pasternak
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, 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
| | - Yogesh Rathi
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Michael J Coleman
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Andre van der Kouwe
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA
| | - Karl Helmer
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA
| | - Jason D Kilts
- VA Mid-Atlantic Mental Illness Research and Clinical Center (MIRECC) and Durham VA Medical Center, Durham, NC, USA.,Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Jennifer C Naylor
- VA Mid-Atlantic Mental Illness Research and Clinical Center (MIRECC) and Durham VA Medical Center, Durham, NC, USA.,Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA
| | - Rajendra A Morey
- VA Mid-Atlantic Mental Illness Research and Clinical Center (MIRECC) and Durham VA Medical Center, Durham, NC, USA.,Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA.,Duke-UNC Brain Imaging and Analysis Center, Duke University, Durham, NC, USA
| | - Lori Shutter
- Departments of Critical Care Medicine, Neurology and Neurosurgery, UPMC Health System/University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Norberto Andaluz
- Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA.,Mayfield Brain & Spine, Cincinnati, OH, USA
| | - Raul Coimbra
- Department of General Surgery, Riverside University Health System Medical Center, Moreno Valley, CA, USA
| | - Ariel J Lang
- VA San Diego Center of Excellence for Stress and Mental Health (CESAMH), San Diego, CA, USA.,Department of Psychiatry, University of California San Diego, La Jolla, CA, USA.,Department of Family Medicine and Public Health, University of California San Diego, La Jolla, CA, USA
| | - Mark S George
- Psychiatry Department, Medical University of South Carolina, Charleston, SC, USA.,Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | | | - Ross Zafonte
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Harvard Medical School, Charlestown, MA, USA.,Department of Physical Medicine and Rehabilitation, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Murray B Stein
- VA San Diego Center of Excellence for Stress and Mental Health (CESAMH), San Diego, CA, USA.,Department of Psychiatry, University of California San Diego, La Jolla, CA, USA.,Department of Family Medicine and Public Health, University of California San Diego, La Jolla, CA, USA
| | - Martha E Shenton
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, 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.,VA Boston Healthcare System, Brockton Division, Brockton, MA, USA
| | - Inga K Koerte
- Department of Psychiatry, Psychiatry Neuroimaging Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.,cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatic and Psychotherapy, Ludwig-Maximilians-Universität, Munich, Germany.,Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Graduate School of Systemic Neuroscience, Ludwig-Maximilians-Universität, Munich, Germany
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Ketamine and rapid acting antidepressants: Are we ready to cure, rather than treat depression? Behav Brain Res 2020; 390:112628. [PMID: 32407817 DOI: 10.1016/j.bbr.2020.112628] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 02/21/2020] [Accepted: 03/24/2020] [Indexed: 12/12/2022]
Abstract
Depression is a leading cause of disability, with often chronic course of illness and high treatment resistance in a large proportion of patients. In the current short perspective paper, we present evidence supporting the presence of synaptic-based chronic stress pathology (CSP) in depression and across a number of psychiatric disorders. We summarize the synaptic connectivity model of CSP, and briefly review related preclinical and clinical evidence, while providing appropriate references for more comprehensive reviews and alternative models. We then underscore some gaps in the literature and provide various tips for future directions.
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61
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Reding KM, Styner MM, Wilson ME, Toufexis D, Sanchez MM. Social subordination alters estradiol-induced changes in cortico-limbic brain volumes in adult female rhesus monkeys. Psychoneuroendocrinology 2020; 114:104592. [PMID: 32023501 PMCID: PMC7178918 DOI: 10.1016/j.psyneuen.2020.104592] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 12/10/2019] [Accepted: 01/22/2020] [Indexed: 12/30/2022]
Abstract
Women have a higher risk of developing stress-related disorders compared to men and the experience of a stressful life event is a potent risk-factor. The rodent literature suggests that chronic exposure to stressors as well as 17β-estradiol (E2) can result in alterations in neuronal structure in corticolimbic brain regions, however the translation of these data to humans is limited by the nature of the stressor experienced and issues of brain homology. To address these limitations, we used a well-validated rhesus monkey model of social subordination to examine effects of E2 treatment on subordinate (high stress) and dominant (low stress) female brain structure, including regional gray matter and white matter volumes using structural magnetic resonance imaging. Our results show that one month of E2 treatment in ovariectomized females, compared to control (no) treatment, decreased frontal cortex gray matter volume regardless of social status. In contrast, in the cingulate cortex, an area associated with stress-induced emotional processing, E2 decreased grey matter volume in subordinates but increased it in dominant females. Together these data suggest that physiologically relevant levels of E2 alter cortical gray matter volumes in females after only one month of treatment and interact with chronic social stress to modulate these effects on brain structure.
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Affiliation(s)
| | - Martin M. Styner
- Department of Psychiatry, University of North Carolina – Chapel Hill
| | - Mark E. Wilson
- Yerkes National Primate Research Center, Emory University,,Department of Psychiatry & Behavioral Sciences, Emory University
| | - Donna Toufexis
- Department of Psychological Science, University of Vermont
| | - Mar M. Sanchez
- Yerkes National Primate Research Center, Emory University,,Department of Psychiatry & Behavioral Sciences, Emory University
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62
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Ousdal OT, Argyelan M, Narr KL, Abbott C, Wade B, Vandenbulcke M, Urretavizcaya M, Tendolkar I, Takamiya A, Stek ML, Soriano-Mas C, Redlich R, Paulson OB, Oudega ML, Opel N, Nordanskog P, Kishimoto T, Kampe R, Jorgensen A, Hanson LG, Hamilton JP, Espinoza R, Emsell L, van Eijndhoven P, Dols A, Dannlowski U, Cardoner N, Bouckaert F, Anand A, Bartsch H, Kessler U, Oedegaard KJ, Dale AM, Oltedal L. Brain Changes Induced by Electroconvulsive Therapy Are Broadly Distributed. Biol Psychiatry 2020; 87:451-461. [PMID: 31561859 DOI: 10.1016/j.biopsych.2019.07.010] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 07/14/2019] [Accepted: 07/15/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND Electroconvulsive therapy (ECT) is associated with volumetric enlargements of corticolimbic brain regions. However, the pattern of whole-brain structural alterations following ECT remains unresolved. Here, we examined the longitudinal effects of ECT on global and local variations in gray matter, white matter, and ventricle volumes in patients with major depressive disorder as well as predictors of ECT-related clinical response. METHODS Longitudinal magnetic resonance imaging and clinical data from the Global ECT-MRI Research Collaboration (GEMRIC) were used to investigate changes in white matter, gray matter, and ventricle volumes before and after ECT in 328 patients experiencing a major depressive episode. In addition, 95 nondepressed control subjects were scanned twice. We performed a mega-analysis of single subject data from 14 independent GEMRIC sites. RESULTS Volumetric increases occurred in 79 of 84 gray matter regions of interest. In total, the cortical volume increased by mean ± SD of 1.04 ± 1.03% (Cohen's d = 1.01, p < .001) and the subcortical gray matter volume increased by 1.47 ± 1.05% (d = 1.40, p < .001) in patients. The subcortical gray matter increase was negatively associated with total ventricle volume (Spearman's rank correlation ρ = -.44, p < .001), while total white matter volume remained unchanged (d = -0.05, p = .41). The changes were modulated by number of ECTs and mode of electrode placements. However, the gray matter volumetric enlargements were not associated with clinical outcome. CONCLUSIONS The findings suggest that ECT induces gray matter volumetric increases that are broadly distributed. However, gross volumetric increases of specific anatomically defined regions may not serve as feasible biomarkers of clinical response.
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Affiliation(s)
| | - Miklos Argyelan
- Center for Psychiatric Neuroscience at the Feinstein Institute for Medical Research, New York, New York
| | - Katherine L Narr
- Departments of Neurology, Psychiatry, and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles
| | - Christopher Abbott
- Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque, New Mexico
| | - Benjamin Wade
- Departments of Neurology, Psychiatry, and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles
| | - Mathieu Vandenbulcke
- Department of Geriatric Psychiatry, University Psychiatric Center Katholieke Universiteit Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Mikel Urretavizcaya
- Department of Psychiatry, Bellvitge University Hospital-Bellvitge Biomedical Research Institute; Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Salud Mental, Carlos III Health Institute, Madrid, Spain
| | - Indira Tendolkar
- Department of Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands; Donders Institute for Brain Cognition and Behavior, Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands; Faculty of Medicine and Landschaftsverband Rheinland Clinic for Psychiatry and Psychotherapy, University of Duisburg-Essen, Duisburg-Essen, Germany
| | - Akihiro Takamiya
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan; Center for Psychiatry and Behavioral Science, Komagino Hospital, Tokyo, Japan
| | - Max L Stek
- Geestelijke GezondheidsZorg inGeest Specialized Mental Health Care, Amsterdam, The Netherlands; Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Psychiatry, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Carles Soriano-Mas
- Department of Psychiatry, Bellvitge University Hospital-Bellvitge Biomedical Research Institute; Department of Psychobiology and Methodology in Health Sciences, Universitat Autònoma de Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Salud Mental, Carlos III Health Institute, Madrid, Spain
| | - Ronny Redlich
- Department of Psychiatry and Psychotherapy, University of Muenster, Muenster, Germany
| | - Olaf B Paulson
- Neurobiology Research Unit, Department of Neurology, Rigshospitalet, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mardien L Oudega
- Geestelijke GezondheidsZorg inGeest Specialized Mental Health Care, Amsterdam, The Netherlands; Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Psychiatry, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Nils Opel
- Department of Psychiatry and Psychotherapy, University of Muenster, Muenster, Germany; Interdisciplinary Centre for Clinical Research (IZKF), University of Muenster, Muenster, Germany
| | - Pia Nordanskog
- Center for Social and Affective Neuroscience, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Taishiro Kishimoto
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Robin Kampe
- Center for Social and Affective Neuroscience, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Anders Jorgensen
- Psychiatric Center Copenhagen (Rigshospitalet), Mental Health Services of the Capital Region of Denmark, Copenhagen, Denmark
| | - Lars G Hanson
- Center for Magnetic Resonance, Department of Health Technology, Technical University of Denmark, Kongens Lyngby, Denmark; Danish Research Centre for Magnetic Resonance, Center for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital, Hvidovre, Denmark
| | - J Paul Hamilton
- Center for Social and Affective Neuroscience, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Randall Espinoza
- Departments of Neurology, Psychiatry, and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles
| | - Louise Emsell
- Department of Geriatric Psychiatry, University Psychiatric Center Katholieke Universiteit Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Philip van Eijndhoven
- Department of Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands; Donders Institute for Brain Cognition and Behavior, Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands
| | - Annemieke Dols
- Geestelijke GezondheidsZorg inGeest Specialized Mental Health Care, Amsterdam, The Netherlands; Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Psychiatry, Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Udo Dannlowski
- Department of Psychiatry and Psychotherapy, University of Muenster, Muenster, Germany
| | - Narcis Cardoner
- Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Salud Mental, Carlos III Health Institute, Madrid, Spain; Department of Mental Health, University Hospital Parc Taulí-I3PT, Sabadell, Spain
| | - Filip Bouckaert
- Department of Geriatric Psychiatry, University Psychiatric Center Katholieke Universiteit Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Amit Anand
- Cleveland Clinic, Center for Behavioral Health, Cleveland, Ohio
| | - Hauke Bartsch
- Center for Multimodal Imaging and Genetics, University of California, San Diego, La Jolla, California; Department of Radiology, University of California, San Diego, La Jolla, California
| | - Ute Kessler
- Norwegian Centre for Mental Disorders Research, Division of Psychiatry, Haukeland University Hospital, Bergen, Norway; Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Ketil J Oedegaard
- Norwegian Centre for Mental Disorders Research, Division of Psychiatry, Haukeland University Hospital, Bergen, Norway; Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Anders M Dale
- Center for Multimodal Imaging and Genetics, University of California, San Diego, La Jolla, California; Department of Radiology, University of California, San Diego, La Jolla, California; Department of Neurosciences, University of California, San Diego, La Jolla, California
| | - Leif Oltedal
- Mohn Medical Imaging and Visualization Centre, Department of Radiology, Haukeland University Hospital, Bergen, Norway; Department of Clinical Medicine, University of Bergen, Bergen, Norway
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63
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Hajszan T. Stress and remodeling of hippocampal spine synapses. VITAMINS AND HORMONES 2020; 114:257-279. [DOI: 10.1016/bs.vh.2020.04.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Copersino ML, Patel R, Price JS, Visser KF, Vitaliano G, Plitman E, Lukas SE, Weiss RD, Janes AC, Chakravarty MM. Interactive effects of age and recent substance use on striatal shape morphology at substance use disorder treatment entry. Drug Alcohol Depend 2020; 206:107728. [PMID: 31740207 PMCID: PMC6980652 DOI: 10.1016/j.drugalcdep.2019.107728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 09/28/2019] [Accepted: 11/06/2019] [Indexed: 01/18/2023]
Abstract
BACKGROUND Striatal neuroadaptations are regarded to play an important role in the progression from voluntary to compulsive use of addictive substances and provide a promising target for the identification of neuroimaging biomarkers. Recent advances in surface-based computational analysis enable morphological assessment linking variations in global and local striatal shape to duration and magnitude of substance use with a degree of sensitivity that exceeds standard volumetric analysis. METHODS This study used a new segmentation methodology coupled with local surface-based indices of surface area and displacement to provide a comprehensive structural characterization of the striatum in 34 patients entering treatment for substance use disorder (SUD) and 49 controls, and to examine the influence of recent substance use on abnormal age-related striatal deformation in SUD patients. RESULTS Patients showed a small reduction in striatal volume and no difference in surface area or shape in comparison to controls. Between-group differences in shape were likely neutralized by the bidirectional influence of recent substance use on striatal shape in SUD patients. Specifically, there was an interaction between age and substance such that among older patients more drug use was associated with greater inward striatal contraction but more alcohol use was associated with greater outward expansion. CONCLUSIONS This study builds on previous work and advances our understanding of the nature of striatal neuroadaptations as a potential biomarker of disease progression in addiction.
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Affiliation(s)
- Marc L. Copersino
- Division of Alcohol and Drug Abuse, McLean Hospital, Belmont, MA, USA,Harvard Medical School, Boston, MA, USA,Corresponding author: Marc L. Copersino, Ph.D., McLean Hospital, 115 Mill Street, Mail Stop #103, Belmont, MA 02478, Phone: (617) 855-2853, Fax: (617) 855-4055,
| | - Raihaan Patel
- Cerebral Imaging Centre, Douglas Mental Health University Institute, Montreal, QC, Canada; Department of Biological and Biomedical Engineering, McGill University, Montreal, QC, Canada.
| | - Jenessa S. Price
- Division of Transplant Surgery, Dept of Surgery, Medical College of Wisconsin, Milwaukee, WI, USA,Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | | | - Gordana Vitaliano
- Division of Alcohol and Drug Abuse, McLean Hospital, Belmont, MA, USA; Harvard Medical School, Boston, MA, USA.
| | - Eric Plitman
- Cerebral Imaging Centre, Douglas Mental Health University Institute, Montreal, QC, Canada.
| | - Scott E. Lukas
- Division of Alcohol and Drug Abuse, McLean Hospital, Belmont, MA, USA,Harvard Medical School, Boston, MA, USA
| | - Roger D. Weiss
- Division of Alcohol and Drug Abuse, McLean Hospital, Belmont, MA, USA,Harvard Medical School, Boston, MA, USA
| | - Amy C. Janes
- Division of Alcohol and Drug Abuse, McLean Hospital, Belmont, MA, USA,Harvard Medical School, Boston, MA, USA
| | - M. Mallar Chakravarty
- Cerebral Imaging Centre, Douglas Mental Health University Institute, Montreal, QC, Canada;,Department of Psychiatry, McGill University, Montreal, QC, Canada,Department of Biological and Biomedical Engineering, McGill University, Montreal, QC, Canada
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Stern Y, Barnes CA, Grady C, Jones RN, Raz N. Brain reserve, cognitive reserve, compensation, and maintenance: operationalization, validity, and mechanisms of cognitive resilience. Neurobiol Aging 2019; 83:124-129. [PMID: 31732015 PMCID: PMC6859943 DOI: 10.1016/j.neurobiolaging.2019.03.022] [Citation(s) in RCA: 216] [Impact Index Per Article: 43.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/05/2019] [Accepted: 03/11/2019] [Indexed: 01/22/2023]
Abstract
Significant individual differences in the trajectories of cognitive aging and in age-related changes of brain structure and function have been reported in the past half-century. In some individuals, significant pathological changes in the brain are observed in conjunction with relatively well-preserved cognitive performance. Multiple constructs have been invoked to explain this paradox of resilience, including brain reserve, cognitive reserve, brain maintenance, and compensation. The aim of this session of the Cognitive Aging Summit III was to examine the overlap and distinctions in definitions and measurement of these constructs, to discuss their neural and behavioral correlates and to propose plausible mechanisms of individual cognitive resilience in the face of typical age-related neural declines.
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Affiliation(s)
- Yaakov Stern
- Cognitive Neuroscience Division, Department of Neurology, Columbia University, New York, NY, USA
| | - Carol A Barnes
- Departments of Psychology, Neurology and Neuroscience, and Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ, USA
| | - Cheryl Grady
- Rotman Research Institute, Baycrest Centre, and Departments of Psychology and Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Richard N Jones
- Departments of Neurology and Psychiatry & Human Behavior, Brown University, Providence, RI, USA
| | - Naftali Raz
- Institute of Gerontology and Department of Psychology, Wayne State University, Detroit, MI, USA; Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany.
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66
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Zhao L, Matloff W, Ning K, Kim H, Dinov ID, Toga AW. Age-Related Differences in Brain Morphology and the Modifiers in Middle-Aged and Older Adults. Cereb Cortex 2019; 29:4169-4193. [PMID: 30535294 PMCID: PMC6931275 DOI: 10.1093/cercor/bhy300] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/05/2018] [Accepted: 11/07/2018] [Indexed: 12/11/2022] Open
Abstract
Brain structural morphology differs with age. This study examined age-differences in surface-based morphometric measures of cortical thickness, volume, and surface area in a well-defined sample of 8137 generally healthy UK Biobank participants aged 45-79 years. We illustrate that the complexity of age-related brain morphological differences may be related to the laminar organization and regional evolutionary history of the cortex, and age of about 60 is a break point for increasing negative associations between age and brain morphology in Alzheimer's disease (AD)-prone areas. We also report novel relationships of age-related cortical differences with individual factors of sex, cognitive functions of fluid intelligence, reaction time and prospective memory, cigarette smoking, alcohol consumption, sleep disruption, genetic markers of apolipoprotein E, brain-derived neurotrophic factor, catechol-O-methyltransferase, and several genome-wide association study loci for AD and further reveal joint effects of cognitive functions, lifestyle behaviors, and education on age-related cortical differences. These findings provide one of the most extensive characterizations of age associations with major brain morphological measures and improve our understanding of normal structural brain aging and its potential modifiers.
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Affiliation(s)
- Lu Zhao
- Laboratory of Neuro Imaging, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, CA 90033, USA
| | - William Matloff
- Laboratory of Neuro Imaging, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, CA 90033, USA
| | - Kaida Ning
- Laboratory of Neuro Imaging, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, CA 90033, USA
| | - Hosung Kim
- Laboratory of Neuro Imaging, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, CA 90033, USA
| | - Ivo D Dinov
- Statistics Online Computational Resource, HBBS, University of Michigan, Ann Arbor, MI 48109-2003, USA
- Michigan Institute for Data Science, HBBS, University of Michigan, Ann Arbor, MI 48109-1042, USA
| | - Arthur W Toga
- Laboratory of Neuro Imaging, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, University of Southern California, Los Angeles, CA 90033, USA
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Smith KL, Kassem MS, Clarke DJ, Kuligowski MP, Bedoya-Pérez MA, Todd SM, Lagopoulos J, Bennett MR, Arnold JC. Microglial cell hyper-ramification and neuronal dendritic spine loss in the hippocampus and medial prefrontal cortex in a mouse model of PTSD. Brain Behav Immun 2019; 80:889-899. [PMID: 31158497 DOI: 10.1016/j.bbi.2019.05.042] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/30/2019] [Accepted: 05/31/2019] [Indexed: 12/13/2022] Open
Abstract
Few animal models exist that successfully reproduce several core associative and non-associative behaviours relevant to post-traumatic stress disorder (PTSD), such as long-lasting fear reactions, hyperarousal, and subtle attentional and cognitive dysfunction. As such, these models may lack the face validity required to adequately model pathophysiological features of PTSD such as CNS grey matter loss and neuroinflammation. Here we aimed to investigate in a mouse model of PTSD whether contextual fear conditioning associated with a relatively high intensity footshock exposure induces loss of neuronal dendritic spines in various corticolimbic brain regions, as their regression may help explain grey matter reductions in PTSD patients. Further, we aimed to observe whether these changes were accompanied by alterations in microglial cell number and morphology, and increased expression of complement factors implicated in the mediation of microglial cell-mediated engulfment of dendritic spines. Adult male C57Bl6J mice were exposed to a single electric footshock and subsequently underwent phenotyping of various PTSD-relevant behaviours in the short (day 2-4) and longer-term (day 29-31). 32 days post-exposure the brains of these animals were subjected to Golgi staining of dendritic spines, microglial cell Iba-1 immunohistochemistry and immunofluorescent staining of the complement factors C1q and C4. Shock exposure promoted a lasting contextual fear response, decreased locomotor activity, exaggerated acoustic startle responses indicative of hyperarousal, and a short-term facilitation of sensorimotor gating function. The shock triggered loss of dendritic spines on pyramidal neurons was accompanied by increased microglial cell number and complexity in the medial prefrontal cortex and dorsal hippocampus, but not in the amygdala. Shock also increased expression of C1q in the pyramidal layer of the CA1 region of the hippocampus but not in other brain regions. The present study further elaborates on the face and construct validity of a mouse model of PTSD and provides a good foundation to explore potential molecular interactions between microglia and dendritic spines.
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Affiliation(s)
- Kristie Leigh Smith
- Brain and Mind Centre, University of Sydney, Australia; Faculty of Medicine and Health, University of Sydney, Australia
| | | | - David J Clarke
- Brain and Mind Centre, University of Sydney, Australia; Discipline of Pharmacology, University of Sydney, Australia
| | - Michael P Kuligowski
- Brain and Mind Centre, University of Sydney, Australia; Australian Microscopy & Microanalysis Research Facility, University of Sydney, Australia
| | - Miguel A Bedoya-Pérez
- Brain and Mind Centre, University of Sydney, Australia; School of Life and Environmental Sciences, University of Sydney, Australia
| | - Stephanie M Todd
- Brain and Mind Centre, University of Sydney, Australia; Discipline of Pharmacology, University of Sydney, Australia
| | | | - Maxwell R Bennett
- Brain and Mind Centre, University of Sydney, Australia; Discipline of Physiology, University of Sydney, Australia
| | - Jonathon C Arnold
- Brain and Mind Centre, University of Sydney, Australia; Faculty of Medicine and Health, University of Sydney, Australia; Discipline of Pharmacology, University of Sydney, Australia.
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68
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Nash WP. Commentary on the Special Issue on Moral Injury: Unpacking Two Models for Understanding Moral Injury. J Trauma Stress 2019; 32:465-470. [PMID: 31173669 DOI: 10.1002/jts.22409] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 05/06/2019] [Indexed: 01/28/2023]
Abstract
The most robust finding of moral injury (MI) research thus far-that past exposure to potentially morally injurious events predicts current symptoms of posttraumatic stress disorder (PTSD)-challenges conceptions that trauma is exclusively the result of fear-evoking brushes with death or sexual assault. It also calls into question the applicability to MI of treatments for PTSD grounded in the fear model of trauma. In the current article, two divergent theoretical models that have been applied to the understanding and treatment of moral injury are compared: the stress-appraisal-coping model and the stress injury model. Attention is drawn to the differences between how these models conceptualize stress and distress, including psychological trauma, and to their potential implications for the sustainment of mental health stigma, especially in military and veteran populations.
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Affiliation(s)
- William P Nash
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA.,VA Greater Los Angeles Healthcare System, Los Angeles, California, USA
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69
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Lancaster K, Goldbeck L, Puglia MH, Morris JP, Connelly JJ. DNA methylation of OXTR is associated with parasympathetic nervous system activity and amygdala morphology. Soc Cogn Affect Neurosci 2019; 13:1155-1162. [PMID: 30257007 PMCID: PMC6234329 DOI: 10.1093/scan/nsy086] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 09/21/2018] [Indexed: 12/11/2022] Open
Abstract
Oxytocin has anxiolytic properties whose mechanisms of action are still being identified. DNA methylation in the promoter region of the oxytocin receptor gene (OXTR), an epigenetic modification that putatively reflects a downtuning of the oxytocin system, has previously been implicated in the regulation of fear-related responses through the amygdala. In this study, we attempted to characterize the relationship between methylation of OXTR and anxiogenesis using two distinct endophenotypes: autonomic nervous system activity and subcortical brain structure. In 79 participants, we found that increased OXTR methylation is associated with attenuated resting parasympathetic tone, measured using high-frequency heart rate variability. Further, we found that this relationship is mediated by brain morphology, such that OXTR methylation is associated with increased gray matter of the central amygdala which is, in turn, associated with decreased parasympathetic tone. These results further our understanding of epigenetic regulation of the human oxytocin system and its role in anxiogenesis.
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70
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Holmes SE, Scheinost D, Finnema SJ, Naganawa M, Davis MT, DellaGioia N, Nabulsi N, Matuskey D, Angarita GA, Pietrzak RH, Duman RS, Sanacora G, Krystal JH, Carson RE, Esterlis I. Lower synaptic density is associated with depression severity and network alterations. Nat Commun 2019; 10:1529. [PMID: 30948709 PMCID: PMC6449365 DOI: 10.1038/s41467-019-09562-7] [Citation(s) in RCA: 246] [Impact Index Per Article: 49.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 03/18/2019] [Indexed: 12/21/2022] Open
Abstract
Synaptic loss and deficits in functional connectivity are hypothesized to contribute to symptoms associated with major depressive disorder (MDD) and post-traumatic stress disorder (PTSD). The synaptic vesicle glycoprotein 2A (SV2A) can be used to index the number of nerve terminals, an indirect estimate of synaptic density. Here, we used positron emission tomography (PET) with the SV2A radioligand [11C]UCB-J to examine synaptic density in n = 26 unmedicated individuals with MDD, PTSD, or comorbid MDD/PTSD. The severity of depressive symptoms was inversely correlated with SV2A density, and individuals with high levels of depression showing lower SV2A density compared to healthy controls (n = 21). SV2A density was also associated with aberrant network function, as measured by magnetic resonance imaging (MRI) functional connectivity. This is the first in vivo evidence linking lower synaptic density to network alterations and symptoms of depression. Our findings provide further incentive to evaluate interventions that restore synaptic connections to treat depression.
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Affiliation(s)
- Sophie E Holmes
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Dustin Scheinost
- Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Sjoerd J Finnema
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Mika Naganawa
- Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Margaret T Davis
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Nicole DellaGioia
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Nabeel Nabulsi
- Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, 06511, USA
| | - David Matuskey
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, 06511, USA
- Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Gustavo A Angarita
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Robert H Pietrzak
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, 06511, USA
- U.S. Department of Veteran Affairs National Center for Posttraumatic Stress Disorder, Clinical Neurosciences Division, VA Connecticut Healthcare System, West Haven, CT, 06516, USA
| | - Ronald S Duman
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Gerard Sanacora
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, 06511, USA
| | - John H Krystal
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, 06511, USA
- U.S. Department of Veteran Affairs National Center for Posttraumatic Stress Disorder, Clinical Neurosciences Division, VA Connecticut Healthcare System, West Haven, CT, 06516, USA
| | - Richard E Carson
- Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Irina Esterlis
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, 06511, USA.
- U.S. Department of Veteran Affairs National Center for Posttraumatic Stress Disorder, Clinical Neurosciences Division, VA Connecticut Healthcare System, West Haven, CT, 06516, USA.
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71
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Hu Z, Du X, Yang Y, Botchway BOA, Fang M. Progesterone and fluoxetine treatments of postpartum depressive-like behavior in rat model. Cell Biol Int 2019; 43:539-552. [PMID: 30811083 DOI: 10.1002/cbin.11123] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/23/2019] [Indexed: 12/19/2022]
Abstract
Research studies have indicated that alterations in plasma progesterone levels might be associated with the hippocampal synaptic plasticity of postpartum depressive-like behavior. Herein, we assess both progesterone and fluoxetine effects in adult female Sprague-Dawley rats with postpartum depressive-like behavior. Depressive-like behavior of postpartum rats was established using chronic ultra-mild stress (CUMS) method for 1 week from gestation day 15. Postpartum rats that showed depressive-like behavior were treated with either progesterone (subcutaneously, 0.5 mg/kg) from gestation day 17 to gestation day 22 or fluoxetine (by gavage, 10 mg/kg/day) for 4 weeks after birth. Open field and sucrose preference tests were conducted at the start, week 2 and week 4 postpartum. Golgi staining, immunofluorescence and Western blot analyses of rats' hippocampi were conducted on week 4 postpartum. Results showed CUMS increases depressive-like behavior, however, treatment with progesterone and fluoxetine improves this behavior. Both progesterone and fluoxetine treatments increase the numbers of dendritic spines pyramidal neurons in the CA3 region of the hippocampus as well as protein expression levels of microtubule-associated protein 2 (MAP-2) and synaptophysin (SYP). CUMS-induced decrement of MAP-2 and SYP protein expressions can be prevented by treatment with progesterone in advanced pregnant stage and fluoxetine in the postpartum period.
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Affiliation(s)
- Zhiying Hu
- Hangzhou Red Cross Hospital, Hangzhou, China
| | - Xiaoxue Du
- Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Yang Yang
- Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Benson O A Botchway
- Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Marong Fang
- Institute of Neuroscience, Zhejiang University School of Medicine, Hangzhou, 310058, China
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72
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Mendoza C, Perez-Urrutia N, Alvarez-Ricartes N, Barreto GE, Pérez-Ordás R, Iarkov A, Echeverria V. Cotinine Plus Krill Oil Decreased Depressive Behavior, and Increased Astrocytes Survival in the Hippocampus of Mice Subjected to Restraint Stress. Front Neurosci 2018; 12:952. [PMID: 30618579 PMCID: PMC6305112 DOI: 10.3389/fnins.2018.00952] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 11/30/2018] [Indexed: 12/14/2022] Open
Abstract
Restraint stress (RS) is a condition affecting millions of people worldwide. The investigation of new therapies to alleviate the consequences of prolonged RS is much needed. Cotinine, a nicotine-derivative, has shown to prevent the decrease in cerebral synaptic density, working memory deficits, anxiety, and depressive-like behavior after prolonged restraint stress (RS) in mice. Furthermore, post-treatment with cotinine reduced the adverse effects of chronic RS on astrocyte survival and architecture. On the other hand, the nutritional supplement krill oil (KO), has shown to be beneficial in decreasing depressive-like behavior and oxidative stress. In this study, in the search for effective preventative treatments to be used in people subjected to reduced mobility, the effect of co-treatment with cotinine plus KO in mice subjected to prolonged RS was investigated. The results show that cotinine plus KO prevented the loss of astrocytes, the appearance of depressive-like behavior and cognitive impairment induced by RS. The use of the combination of cotinine plus KO was more effective than cotinine alone in preventing the depressive-like behavior in the restrained mice. The potential use of this combination to alleviate the psychological effects of reduced mobility is discussed.
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Affiliation(s)
| | | | | | - George E Barreto
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias Pontificia Universidad Javeriana, Bogotá, Colombia.,Instituto de Ciencias Biomédicas Universidad Autónoma de Chile, Santiago, Chile
| | - Raquel Pérez-Ordás
- Facultad de Ciencias de la Actividad física y el deporte Universidad Pablo de Olavide, Sevilla, Spain
| | - Alex Iarkov
- Universidad San Sebastián Fac. Cs de la Salud, Concepción, Chile
| | - Valentina Echeverria
- Universidad San Sebastián Fac. Cs de la Salud, Concepción, Chile.,Research & Development Service, Bay Pines VA Healthcare System Bay Pines, FL, United States
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73
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Borsook D, Youssef AM, Simons L, Elman I, Eccleston C. When pain gets stuck: the evolution of pain chronification and treatment resistance. Pain 2018; 159:2421-2436. [PMID: 30234696 PMCID: PMC6240430 DOI: 10.1097/j.pain.0000000000001401] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
It is well-recognized that, despite similar pain characteristics, some people with chronic pain recover, whereas others do not. In this review, we discuss possible contributions and interactions of biological, social, and psychological perturbations that underlie the evolution of treatment-resistant chronic pain. Behavior and brain are intimately implicated in the production and maintenance of perception. Our understandings of potential mechanisms that produce or exacerbate persistent pain remain relatively unclear. We provide an overview of these interactions and how differences in relative contribution of dimensions such as stress, age, genetics, environment, and immune responsivity may produce different risk profiles for disease development, pain severity, and chronicity. We propose the concept of "stickiness" as a soubriquet for capturing the multiple influences on the persistence of pain and pain behavior, and their stubborn resistance to therapeutic intervention. We then focus on the neurobiology of reward and aversion to address how alterations in synaptic complexity, neural networks, and systems (eg, opioidergic and dopaminergic) may contribute to pain stickiness. Finally, we propose an integration of the neurobiological with what is known about environmental and social demands on pain behavior and explore treatment approaches based on the nature of the individual's vulnerability to or protection from allostatic load.
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Affiliation(s)
- David Borsook
- Center for Pain and the Brain, Boston Children’s (BCH), McLean and Massachusetts Hospitals (MGH), Boston MA
- Departments of Anesthesia (BCH), Psychiatry (MGH, McLean) and Radiology (MGH)
| | - Andrew M Youssef
- Center for Pain and the Brain, Boston Children’s (BCH), McLean and Massachusetts Hospitals (MGH), Boston MA
| | - Laura Simons
- Department of Anesthesia, Stanford University, Palo Alto, CA
| | | | - Christopher Eccleston
- Centre for Pain Research, University of Bath, UK
- Department of Clinical and Health Psychology, Ghent University, Belgium
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74
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Shah-Basak PP, Kielar A, Deschamps T, Verhoeff NP, Jokel R, Meltzer J. Spontaneous oscillatory markers of cognitive status in two forms of dementia. Hum Brain Mapp 2018; 40:1594-1607. [PMID: 30421472 DOI: 10.1002/hbm.24470] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 10/09/2018] [Accepted: 11/01/2018] [Indexed: 01/23/2023] Open
Abstract
Abnormal oscillatory brain activity in dementia may indicate incipient neuronal/synaptic dysfunction, rather than frank structural atrophy. Leveraging a potential link between the degree of abnormal oscillatory activity and cognitive symptom severity, one could localize brain regions in a diseased but pre-atrophic state, which may be more amenable to interventions. In the current study, we evaluated the relationships among cognitive deficits, regional volumetric changes, and resting-state magnetoencephalography abnormalities in patients with mild cognitive impairment (MCI; N = 10; age: 75.9 ± 7.3) or primary progressive aphasia (PPA; N = 12; 69.7 ± 8.0), and compared them to normal aging [young (N = 18; 24.6 ± 3.5), older controls (N = 24; 67.2 ± 9.7]. Whole-brain source-level resting-state estimates of relative oscillatory power in the delta (1-4 Hz), theta (4-7 Hz), alpha (8-12 Hz), and beta (15-30 Hz) bands were combined with gray matter volumes and cognitive scores to examine between-group differences and brain-behavior correlations. Language and executive function (EF) abilities were impaired in patients with PPA, while episodic memory was impaired in MCI. Widespread oscillatory speeding and volumetric shrinkage was associated with normal aging, whereas the trajectory in PPA indicated widespread oscillatory slowing with additional volumetric reductions. Increases in delta and decreases in alpha power uniquely predicted group membership to PPA. Beyond volumetric reductions, more delta predicted poorer memory. In patients with MCI, no consistent group difference among oscillatory measures was found. The contributions of delta/alpha power on memory abilities were larger than volumetric differences. Spontaneous oscillatory abnormalities in association with cognitive symptom severity can serve as a marker of neuronal dysfunction in dementia, providing targets for promising treatments.
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Affiliation(s)
- Priyanka P Shah-Basak
- Rotman Research Institute, Baycrest Health Sciences Centre, Toronto, Ontario, Canada.,Canadian Partnership for Stroke Recovery, Ottawa, Ontario, Canada
| | - Aneta Kielar
- Rotman Research Institute, Baycrest Health Sciences Centre, Toronto, Ontario, Canada.,Canadian Partnership for Stroke Recovery, Ottawa, Ontario, Canada.,Department of Speech, Language, and Hearing Sciences, University of Arizona, Tucson, Arizona
| | - Tiffany Deschamps
- Rotman Research Institute, Baycrest Health Sciences Centre, Toronto, Ontario, Canada
| | - Nicolaas Paul Verhoeff
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.,Department of Psychiatry, Baycrest Health Sciences, North York, Ontario, Canada
| | - Regina Jokel
- Rotman Research Institute, Baycrest Health Sciences Centre, Toronto, Ontario, Canada.,Department of Psychiatry, Baycrest Health Sciences, North York, Ontario, Canada.,Department of Speech-Language Pathology, University of Toronto, Toronto, Ontario, Canada
| | - Jed Meltzer
- Rotman Research Institute, Baycrest Health Sciences Centre, Toronto, Ontario, Canada.,Canadian Partnership for Stroke Recovery, Ottawa, Ontario, Canada.,Department of Speech-Language Pathology, University of Toronto, Toronto, Ontario, Canada.,Department of Psychology, University of Toronto, Toronto, Ontario, Canada
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75
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Koppelmans V, Scott JM, Downs ME, Cassady KE, Yuan P, Pasternak O, Wood SJ, De Dios YE, Gadd NE, Kofman I, Riascos R, Reuter-Lorenz PA, Bloomberg JJ, Mulavara AP, Ploutz-Snyder LL, Seidler RD. Exercise effects on bed rest-induced brain changes. PLoS One 2018; 13:e0205515. [PMID: 30308004 PMCID: PMC6181401 DOI: 10.1371/journal.pone.0205515] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 09/26/2018] [Indexed: 11/19/2022] Open
Abstract
PURPOSE Spaceflight negatively affects sensorimotor behavior; exercise mitigates some of these effects. Head down tilt bed rest (HDBR) induces body unloading and fluid shifts, and is often used to investigate spaceflight effects. Here, we examined whether exercise mitigates effects of 70 days HDBR on the brain and if fitness and brain changes with HDBR are related. METHODS HDBR subjects were randomized to no-exercise (n = 5) or traditional aerobic and resistance exercise (n = 5). Additionally, a flywheel exercise group was included (n = 8). Exercise protocols for exercise groups were similar in intensity, therefore these groups were pooled in statistical analyses. Pre and post-HDBR MRI (structure and structural/functional connectivity) and physical fitness measures (lower body strength, muscle cross sectional area, VO2 max, body composition) were collected. Voxel-wise permutation analyses were used to test group differences in brain changes, and their associations with fitness changes. RESULTS Comparisons of exercisers to controls revealed that exercise led to smaller fitness deterioration with HDBR but did not affect brain volume or connectivity. Group comparisons showed that exercise modulated post-HDBR recovery of brain connectivity in somatosensory regions. Posthoc analysis showed that this was related to functional connectivity decrease with HDBR in non-exercisers but not in exercisers. Correlational analyses between fitness and brain changes showed that fitness decreases were associated with functional connectivity and volumetric increases (all r >.74), potentially reflecting compensation. Modest brain changes or even decreases in connectivity and volume were observed in subjects who maintained or showed small fitness gains. These results did not survive Bonferroni correction, but can be considered meaningful because of the large effect sizes. CONCLUSION Exercise performed during HDBR mitigates declines in fitness and strength. Associations between fitness and brain connectivity and volume changes, although unadjusted for multiple comparisons in this small sample, suggest that supine exercise reduces compensatory HDBR-induced brain changes.
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Affiliation(s)
- Vincent Koppelmans
- School of Kinesiology, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Psychiatry, University of Utah, Salt Lake City, Utah, United States of America
| | - Jessica M. Scott
- Memorial Sloan Kettering Cancer Center, New York, New York, United States of America
- Universities Space Research Association, NASA Johnson Space Center, Houston, Texas, United States of America
| | | | - Kaitlin E. Cassady
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Peng Yuan
- School of Kinesiology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Ofer Pasternak
- Department of Psychiatry and Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Scott J. Wood
- NASA Johnson Space Center, Houston, Texas, United States of America
| | | | | | - Igor Kofman
- KBRwyle, Houston, Texas, United States of America
| | - Roy Riascos
- The University of Texas Health Science Center, Houston, Texas, United States of America
| | - Patricia A. Reuter-Lorenz
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
- Neuroscience Program, University of Michigan, Ann Arbor, Michigan, United States of America
| | | | | | - Lori L. Ploutz-Snyder
- School of Kinesiology, University of Michigan, Ann Arbor, Michigan, United States of America
- Universities Space Research Association, NASA Johnson Space Center, Houston, Texas, United States of America
| | - Rachael D. Seidler
- School of Kinesiology, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Applied Physiology & Kinesiology, University of Florida, Gainesville, Florida, United States of America
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76
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Attentional bias modification alters intrinsic functional network of attentional control: A randomized controlled trial. J Affect Disord 2018; 238:472-481. [PMID: 29929157 DOI: 10.1016/j.jad.2018.06.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 05/19/2018] [Accepted: 06/04/2018] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Attentional bias modification (ABM) alleviates anxiety by moderating biased attentional processing toward threat; however, its neural mechanisms remain unclear. We examined how ABM changes functional connectivity (FC) and functional network measures, leading to anxiety reduction. METHODS Fifty-four healthy anxious individuals received either ABM or sham training for 1 month in a double-blind randomized controlled trial. Anxious traits, attentional control, and attentional bias were assessed. Thirty-five participants completed resting-state functional magnetic resonance imaging (MRI) scans before and after training. RESULTS ABM significantly mitigated an anxious traits regarding physical stress vulnerability (η2 = 0.12, p = 0.009). As compared to sham training, ABM significantly strengthened FC between the pulvinar and transverse temporal gyrus along the temporoparietal junction (T = 3.90, FDR-correctedp = 0.010), whereas it decreased FC between the postCG and ventral fronto-parietal network (vFPN) regions such as the anterior insula and ventrolateral prefrontal cortex (all T ≤ - 3.19, FDR-correctedp ≤ 0.034). Although ABM diminished network measures of the postcentral gyrus (postCG) (all T ≤ - 4.30, FDR-correctedp ≤ 0.006), only the pulvinar-related FC increase was specifically correlated with anxiety reduction (r = - 0.46, p = 0.007). LIMITATIONS Per-protocol analysis and reduced sample size in MRI analysis. CONCLUSIONS ABM might augment the pulvinar's control over vFPN to maintain endogenous attention to a behavioral goal, while diminishing the information exchanges of the postCG with vFPN to inhibit the capture of exogenous attention by potential threats. The pulvinar might play a critical role in ABM anxiolytic efficacy.
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77
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Abdallah CG, Sanacora G, Duman RS, Krystal JH. The neurobiology of depression, ketamine and rapid-acting antidepressants: Is it glutamate inhibition or activation? Pharmacol Ther 2018; 190:148-158. [PMID: 29803629 PMCID: PMC6165688 DOI: 10.1016/j.pharmthera.2018.05.010] [Citation(s) in RCA: 149] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The discovery of the antidepressant effects of ketamine has opened a breakthrough opportunity to develop a truly novel class of safe, effective, and rapid-acting antidepressants (RAADs). In addition, the rapid and robust biological and behavioral effects of ketamine offered a unique opportunity to utilize the drug as a tool to thoroughly investigate the neurobiology of stress and depression in animals, and to develop sensitive and reproducible biomarkers in humans. The ketamine literature over the past two decades has considerably enriched our understanding of the mechanisms underlying chronic stress, depression, and RAADs. However, considering the complexity of the pharmacokinetics and in vivo pharmacodynamics of ketamine, several questions remain unanswered and, at times, even answered questions continue to be considered controversial or at least not fully understood. The current perspective paper summarizes our understanding of the neurobiology of depression, and the mechanisms of action of ketamine and other RAADs. The review focuses on the role of glutamate neurotransmission - reviewing the history of the "glutamate inhibition" and "glutamate activation" hypotheses, proposing a synaptic connectivity model of chronic stress pathology, and describing the mechanism of action of ketamine. It will also summarize the clinical efficacy findings of putative RAADs, present relevant human biomarker findings, and discuss current challenges and future directions.
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Affiliation(s)
- Chadi G Abdallah
- Department of Psychiatry, Yale University School of Medicine, New Haven, USA; Clinical Neuroscience Division, Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, Veterans Affairs Connecticut Healthcare System, West Haven, USA.
| | - Gerard Sanacora
- Department of Psychiatry, Yale University School of Medicine, New Haven, USA; Abraham Ribicoff Research Facilities, Connecticut Mental Health Center, New Haven, USA
| | - Ronald S Duman
- Department of Psychiatry, Yale University School of Medicine, New Haven, USA; Clinical Neuroscience Division, Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, Veterans Affairs Connecticut Healthcare System, West Haven, USA; Abraham Ribicoff Research Facilities, Connecticut Mental Health Center, New Haven, USA
| | - John H Krystal
- Department of Psychiatry, Yale University School of Medicine, New Haven, USA; Clinical Neuroscience Division, Department of Veterans Affairs National Center for Posttraumatic Stress Disorder, Veterans Affairs Connecticut Healthcare System, West Haven, USA; Abraham Ribicoff Research Facilities, Connecticut Mental Health Center, New Haven, USA
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78
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Kang D, McAuley JH, Kassem MS, Gatt JM, Gustin SM. What does the grey matter decrease in the medial prefrontal cortex reflect in people with chronic pain? Eur J Pain 2018; 23:203-219. [PMID: 30101509 DOI: 10.1002/ejp.1304] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 08/05/2018] [Accepted: 08/07/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVE Alterations in the grey matter volume of several brain regions have been reported in people with chronic pain. The most consistent observation is a decrease in grey matter volume in the medial prefrontal cortex. These findings are important as the medial prefrontal cortex plays a critical role in emotional and cognitive processing in chronic pain. Although a logical cause of grey matter volume decrease may be neurodegeneration, this is not supported by the current evidence. Therefore, the purpose of this review was to evaluate the existing literature to unravel what the decrease in medial prefrontal cortex grey matter volume in people with chronic pain may represent on a biochemical and cellular level. DATABASES AND DATA TREATMENT A literature search for this topical review was conducted using PubMed and SCOPUS library. Search terms included chronic pain, pain, medial prefrontal cortex, anterior cingulate cortex, grey matter, neurochemistry, spectroscopy, magnetic resonance imaging, positron emission tomography, dendrite, neurodegeneration, glia, astrocyte, microglia, neurotransmitter, glutamate, GABA and different combinations of these terms. RESULTS Adopting a stress model of chronic pain, two major pathways are proposed that contribute to grey matter volume decrease in the medial prefrontal cortex: (a) changes in dendritic morphology as a result of hypothalamic-pituitary axis dysfunction and (b) neurotransmitter dysregulation, specifically glutamate and γ-Aminobutyric acid, which affects local microvasculature. CONCLUSION Our model proposes new mechanisms in chronic pain pathophysiology responsible for mPFC grey matter loss as alternatives to neurodegeneration. SIGNIFICANCE It is unclear what the decrease in medial prefrontal cortex grey matter volume represents in chronic pain. The most attractive reason is neurodegeneration. However, there is no evidence to support this. Our review reveals nondegenerative causes of decreased medial prefrontal grey matter to guide future research into chronic pain pathophysiology.
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Affiliation(s)
- David Kang
- Neuroscience Research Australia, Sydney, NSW, Australia.,UNSW Medicine, UNSW Sydney, Sydney, NSW, Australia
| | - James H McAuley
- Neuroscience Research Australia, Sydney, NSW, Australia.,UNSW Medicine, UNSW Sydney, Sydney, NSW, Australia
| | | | - Justine M Gatt
- Neuroscience Research Australia, Sydney, NSW, Australia.,School of Psychology, UNSW Sydney, Sydney, NSW, Australia
| | - Sylvia M Gustin
- Neuroscience Research Australia, Sydney, NSW, Australia.,School of Psychology, UNSW Sydney, Sydney, NSW, Australia
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79
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Kokubun K, Nemoto K, Oka H, Fukuda H, Yamakawa Y, Watanabe Y. Association of Fatigue and Stress With Gray Matter Volume. Front Behav Neurosci 2018; 12:154. [PMID: 30087602 PMCID: PMC6066525 DOI: 10.3389/fnbeh.2018.00154] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 07/04/2018] [Indexed: 12/16/2022] Open
Abstract
Stress is associated with a greater risk for various health problems including reduced gray matter volume (GMV) and density in a number of brain regions. Previous studies show that neuroimaging could be a means to objectively evaluate stress. However, to date, no definite neuroimaging-derived measures are available to detect stress. In this research we used the gray-matter brain healthcare quotient (GM-BHQ), an MRI-based quotient for monitoring brain health based on GMV, as an objective scale to measure the association of stress with the whole brain. We recruited 63 healthy adults to acquire structural T1-weighted images and stress levels evaluated using three representative stress scales: the Profile of Mood States (POMS), Perceived Stress Scale (PSS) and Chalder Fatigue Scale (CFS). We found that the GM-BHQ was sensitive to fatigue and the interaction between fatigue and stress.
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Affiliation(s)
- Keisuke Kokubun
- Office of Society-Academia Collaboration for Innovation, Kyoto University, Kyoto, Japan
| | - Kiyotaka Nemoto
- Division of Clinical Medicine, Department of Neuropsychiatry, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hiroki Oka
- ImPACT Program of Council for Science, Council for Science, Technology and Innovation, Cabinet Office, Government of Japan, Chiyoda, Japan
| | - Hiroki Fukuda
- ImPACT Program of Council for Science, Council for Science, Technology and Innovation, Cabinet Office, Government of Japan, Chiyoda, Japan
| | - Yoshinori Yamakawa
- Office of Society-Academia Collaboration for Innovation, Kyoto University, Kyoto, Japan.,ImPACT Program of Council for Science, Council for Science, Technology and Innovation, Cabinet Office, Government of Japan, Chiyoda, Japan.,Institute of Innovative Research, Tokyo Institute of Technology, Meguro, Japan
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80
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Kodama M, Ono T, Yamashita F, Ebata H, Liu M, Kasuga S, Ushiba J. Structural Gray Matter Changes in the Hippocampus and the Primary Motor Cortex on An-Hour-to-One- Day Scale Can Predict Arm-Reaching Performance Improvement. Front Hum Neurosci 2018; 12:209. [PMID: 29988447 PMCID: PMC6024594 DOI: 10.3389/fnhum.2018.00209] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 05/04/2018] [Indexed: 11/13/2022] Open
Abstract
Recent studies have revealed rapid (e.g., hours to days) training-induced cortical structural changes using magnetic resonance imaging (MRI). Currently, there is great interest in studying how such a rapid brain structural change affects behavioral improvement. Structural reorganization contributes to memory or enhanced information processing in the brain and may increase its capability of skill learning. If the gray matter (GM) is capable of such rapid structural reorganization upon training, the extent of volume increase may characterize the learning process. To shed light on this issue, we conducted a case series study of 5-day visuomotor learning using neuroanatomical imaging, and analyzed the effect of rapid brain structural change on motor performance improvement via regression analysis. Participants performed an upper-arm reaching task under left-right mirror-reversal for five consecutive days; T1-weighted MR imaging was performed before training, after the first and fifth days, and 1 week and 1 month after training. We detected increase in GM volume on the first day (i.e., a few hours after the first training session) in the primary motor cortex (M1), primary sensory cortex (S1), and in the hippocampal areas. Notably, regression analysis revealed that individual differences in such short-term increases were associated with the learning levels after 5 days of training. These results suggest that GM structural changes are not simply a footprint of previous motor learning but have some relationship with future motor learning. In conclusion, the present study provides new insight into the role of structural changes in causing functional changes during motor learning.
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Affiliation(s)
- Midori Kodama
- Graduate School of Science and Technology, Keio University, Yokohama, Japan
| | - Takashi Ono
- Saiseikai Higashikanagawa Rehabilitation Hospital, Yokohama, Japan
| | - Fumio Yamashita
- Institute for Biomedical Sciences, Iwate Medical University, Iwate, Japan
| | - Hiroki Ebata
- Saiseikai Higashikanagawa Rehabilitation Hospital, Yokohama, Japan
| | - Meigen Liu
- Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shoko Kasuga
- Graduate School of Science and Technology, Keio University, Yokohama, Japan.,Centre for Neuroscience Studies, Queen's University, Kingston, ON, Canada.,Keio Institute of Pure and Applied Sciences, Yokohama, Japan
| | - Junichi Ushiba
- Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan.,Keio Institute of Pure and Applied Sciences, Yokohama, Japan.,Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, Yokohama, Japan
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81
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Yuan P, Voelkle MC, Raz N. Fluid intelligence and gross structural properties of the cerebral cortex in middle-aged and older adults: A multi-occasion longitudinal study. Neuroimage 2018; 172:21-30. [PMID: 29360573 PMCID: PMC5910236 DOI: 10.1016/j.neuroimage.2018.01.032] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 12/26/2017] [Accepted: 01/14/2018] [Indexed: 01/02/2023] Open
Abstract
According to Parieto-Frontal Integration Theory (P-FIT, Jung and Haier, 2007), individual differences in a circumscribed set of brain regions account for variations in general intelligence (g). The components of g, fluid (Gf) and crystallized (Gc) reasoning, exhibit distinct trajectories of age-related change. Because the brain also ages differentially, we hypothesized that age-related cognitive and neural changes would be coupled. In a sample of healthy middle-aged and older adults, we examined changes in Gf (operationalized by Cattell Culture Fair Test) and Gc (indexed by two vocabulary tests) as well as in structural properties of 19 brain regions. We fitted linear mixed models to the data collected on 73 healthy adults who participated in baseline assessment, with 43 returning for at least one follow-up, and 16 of them contributing four repeated assessments over seven years. We observed age differences as well as longitudinal decline in Gf, contrasted to a lack of age differences and stability in Gc. Cortical thickness and cortical volume exhibited significant age differences and longitudinal declines, which were accelerated in P-FIT regions. Gf (but not Gc) was associated with cortical thickness, but no such relationship was found for cortical volume. Uniformity of cognitive change (lack of reliable individual differences) precluded examination of the coupling between cognitive and brain changes. Cortical shrinkage was greater in high-Gc individuals, whereas in participants with higher Gf cortical volume slower volume shrinkage was observed.
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Affiliation(s)
- Peng Yuan
- School of Kinesiology, University of Michigan, Ann Arbor, MI, USA
| | - Manuel C Voelkle
- Department of Psychology, Humboldt University, Berlin, Germany; Max Planck Institute for Human Development, Berlin, Germany
| | - Naftali Raz
- Institute of Gerontology, Wayne State University, Detroit, MI, USA; Department of Psychology, Wayne State University, Detroit, MI, USA; Max Planck Institute for Human Development, Berlin, Germany.
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82
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Zhao Y, Lin Z, Chen L, Ouyang L, Gu L, Chen F, Zhang Q. Hippocampal astrocyte atrophy in a mouse depression model induced by corticosterone is reversed by fluoxetine instead of benzodiazepine diazepam. Prog Neuropsychopharmacol Biol Psychiatry 2018; 83:99-109. [PMID: 29369777 DOI: 10.1016/j.pnpbp.2018.01.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 01/16/2018] [Accepted: 01/16/2018] [Indexed: 12/13/2022]
Abstract
Astrocytes have become promising new agents against major depressive disorders (MDD) primarily due to the crucial role they play in the pathogenesis of such disorders. However, a simple and reliable animal model that can be used to screen for astrocyte-targeting antidepressants has not yet been developed. In this study, we utilized a repeated corticosterone (CORT) injection paradigm to develop a mouse depression model wherein we examined the occurrence of alterations in hippocampal astrocyte population by using two astrocytic markers, namely, glial fibrillary acidic protein (GFAP) and S100β. Moreover, we determined the effects of fluoxetine and diazepam on CORT-induced astrocytic alterations to assess the predictive validity. Results showed that repeated CORT injections showed no effects on the number of GFAP+ and S100β+ astrocytes, but they decreased the protrusion length of GFAP+ astrocytes and GFAP protein expression in the hippocampus. Furthermore, repeated CORT injections produced a sustained increase of S100β protein levels in the entire hippocampus of male mice. CORT-induced hippocampal astrocyte disruption was antagonized by chronic fluoxetine treatment. By contrast, the anxiolytic drug diazepam was ineffective in the same experimental setting. All these findings suggest that the repeated CORT injection paradigm produces the astrocytic alterations similar to those in MDD and can serve as a useful mouse model to screen antidepressants meant to target astrocytes. These observations can also help in further discussing the underlying mechanisms of CORT-induced astrocytic alterations.
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Affiliation(s)
- Yunan Zhao
- Department of Pathology and Pathophysiology, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing 210046, China.
| | - Zixuan Lin
- Department of Pathology and Pathophysiology, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Lin Chen
- Department of Pathology and Pathophysiology, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Liufeng Ouyang
- Laboratory of Pathological Sciences, College of Medicine, Yan'an University, Yan'an 716000, China
| | - Ling Gu
- Research Center, Basic Medical College, Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Feiyan Chen
- Research Center, Basic Medical College, Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Qiang Zhang
- Department of Pathology and Pathophysiology, School of Medicine and Life Sciences, Nanjing University of Chinese Medicine, Nanjing 210046, China
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83
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Tétreault P, Baliki MN, Baria AT, Bauer WR, Schnitzer TJ, Apkarian AV. Inferring distinct mechanisms in the absence of subjective differences: Placebo and centrally acting analgesic underlie unique brain adaptations. Hum Brain Mapp 2018; 39:2210-2223. [PMID: 29417694 DOI: 10.1002/hbm.23999] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/22/2018] [Accepted: 01/30/2018] [Indexed: 12/31/2022] Open
Abstract
Development and maintenance of chronic pain is associated with structural and functional brain reorganization. However, few studies have explored the impact of drug treatments on such changes. The extent to which long-term analgesia is related to brain adaptations and its effects on the reversibility of brain reorganization remain unclear. In a randomized placebo-controlled clinical trial, we contrasted pain relief (3-month treatment period), and anatomical (gray matter density [GMD], assessed by voxel-based morphometry) and functional connectivity (resting state fMRI nodal degree count [DC]) adaptations, in 39 knee osteoarthritis (OA) patients (22 females), randomized to duloxetine (DLX, 60 mg once daily) or placebo. Pain relief was equivalent between treatment types. However, distinct circuitry (GMD and DC) could explain pain relief in each group: up to 85% of variance for placebo analgesia and 49% of variance for DLX analgesia. No behavioral measures (collected at entry into the study) could independently explain observed analgesia. Identified circuitry were outside of nociceptive circuitry and minimally overlapped with OA-abnormal or placebo response predictive brain regions. Mediation analysis revealed that changes in GMD and DC can influence each other across remote brain regions to explain observed analgesia. Therefore, we can conclude that distinct brain mechanisms underlie DLX and placebo analgesia in OA. The results demonstrate that even in the absence of differences in subjective pain relief, pharmacological treatments can be differentiated from placebo based on objective brain biomarkers. This is a crucial step to untangling mechanisms and advancing personalized therapy approaches for chronic pain.
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Affiliation(s)
- Pascal Tétreault
- Department of Physiology, Feinberg School of Medicine, Chicago, Illinois, 60611
| | - Marwan N Baliki
- Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Chicago, Illinois, 60611.,Shirley Ryan AbilityLab, Chicago, Illinois, 60611
| | - Alexis T Baria
- Department of Physiology, Feinberg School of Medicine, Chicago, Illinois, 60611
| | - William R Bauer
- Department of Neuroscience, University of Toledo, Toledo, Ohio, 43614-2598
| | - Thomas J Schnitzer
- Department of Rheumatology, Feinberg School of Medicine, Chicago, Illinois, 60611
| | - A Vania Apkarian
- Department of Physiology, Feinberg School of Medicine, Chicago, Illinois, 60611.,Anesthesiology Northwestern University, Feinberg School of Medicine, Chicago, Illinois, 60611
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84
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Stanley JA, Raz N. Functional Magnetic Resonance Spectroscopy: The "New" MRS for Cognitive Neuroscience and Psychiatry Research. Front Psychiatry 2018; 9:76. [PMID: 29593585 PMCID: PMC5857528 DOI: 10.3389/fpsyt.2018.00076] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 02/23/2018] [Indexed: 01/30/2023] Open
Abstract
Proton magnetic resonance spectroscopy (1H MRS) is a well-established technique for quantifying the brain regional biochemistry in vivo. In most studies, however, the 1H MRS is acquired during rest with little to no constraint on behavior. Measured metabolite levels, therefore, reflect steady-state concentrations whose associations with behavior and cognition are unclear. With the recent advances in MR technology-higher-field MR systems, robust acquisition techniques and sophisticated quantification methods-1H MRS is now experiencing a resurgence. It is sensitive to task-related and pathology-relevant regional dynamic changes in neurotransmitters, including the most ubiquitous among them, glutamate. Moreover, high temporal resolution approaches allow tracking glutamate modulations at a time scale of under a minute during perceptual, motor, and cognitive tasks. The observed task-related changes in brain glutamate are consistent with new metabolic steady states reflecting the neural output driven by shifts in the local excitatory and inhibitory balance on local circuits. Unlike blood oxygen level differences-base functional MRI, this form of in vivo MRS, also known as functional MRS (1H fMRS), yields a more direct measure of behaviorally relevant neural activity and is considerably less sensitive to vascular changes. 1H fMRS enables noninvasive investigations of task-related glutamate changes that are relevant to normal and impaired cognitive performance, and psychiatric disorders. By targeting brain glutamate, this approach taps into putative neural correlates of synaptic plasticity. This review provides a concise survey of recent technological advancements that lay the foundation for the successful use of 1H fMRS in cognitive neuroscience and neuropsychiatry, including a review of seminal 1H fMRS studies, and the discussion of biological significance of task-related changes in glutamate modulation. We conclude with a discussion of the promises, limitations, and outstanding challenges of this new tool in the armamentarium of cognitive neuroscience and psychiatry research.
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Affiliation(s)
- Jeffrey A Stanley
- Department of Psychiatry and Behavioral Neurosciences, School of Medicine, Wayne State University, Detroit, MI, United States
| | - Naftali Raz
- Department of Psychology, Wayne State University, Detroit, MI, United States.,Institute of Gerontology, Wayne State University, Detroit, MI, United States.,Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
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85
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Wenger E, Brozzoli C, Lindenberger U, Lövdén M. Expansion and Renormalization of Human Brain Structure During Skill Acquisition. Trends Cogn Sci 2017; 21:930-939. [PMID: 29149999 PMCID: PMC5697733 DOI: 10.1016/j.tics.2017.09.008] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 09/13/2017] [Accepted: 09/14/2017] [Indexed: 12/17/2022]
Abstract
Research on human brain changes during skill acquisition has revealed brain volume expansion in task-relevant areas. However, the large number of skills that humans acquire during ontogeny militates against plasticity as a perpetual process of volume growth. Building on animal models and available theories, we promote the expansion-renormalization model for plastic changes in humans. The model predicts an initial increase of gray matter structure, potentially reflecting growth of neural resources like neurons, synapses, and glial cells, which is followed by a selection process operating on this new tissue leading to a complete or partial return to baseline of the overall volume after selection has ended. The model sheds new light on available evidence and current debates and fosters the search for mechanistic explanations.
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Affiliation(s)
- Elisabeth Wenger
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany.
| | - Claudio Brozzoli
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden; ImpAct Team, Neuroscience Research Centre of Lyon (CRNL), Lyon, France
| | - Ulman Lindenberger
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany; Max Planck UCL Centre for Computational Psychiatry and Ageing Research, Berlin, Germany; European University Institute, San Domenico di Fiesole (FI), Italy
| | - Martin Lövdén
- Aging Research Center, Karolinska Institutet and Stockholm University, Stockholm, Sweden
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86
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Goldstone A, Willoughby AR, de Zambotti M, Franzen PL, Kwon D, Pohl KM, Pfefferbaum A, Sullivan EV, Müller-Oehring EM, Prouty DE, Hasler BP, Clark DB, Colrain IM, Baker FC. The mediating role of cortical thickness and gray matter volume on sleep slow-wave activity during adolescence. Brain Struct Funct 2017; 223:669-685. [PMID: 28913599 DOI: 10.1007/s00429-017-1509-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 09/01/2017] [Indexed: 12/01/2022]
Abstract
During the course of adolescence, reductions occur in cortical thickness and gray matter (GM) volume, along with a 65% reduction in slow-wave (delta) activity during sleep (SWA) but empirical data linking these structural brain and functional sleep differences, is lacking. Here, we investigated specifically whether age-related differences in cortical thickness and GM volume and cortical thickness accounted for the typical age-related difference in slow-wave (delta) activity (SWA) during sleep. 132 healthy participants (age 12-21 years) from the National Consortium on Alcohol and NeuroDevelopment in Adolescence study were included in this cross-sectional analysis of baseline polysomnographic, electroencephalographic, and magnetic resonance imaging data. By applying mediation models, we identified a large, direct effect of age on SWA in adolescents, which explained 45% of the variance in ultra-SWA (0.3-1 Hz) and 52% of the variance in delta-SWA (1 to <4 Hz), where SWA was lower in older adolescents, as has been reported previously. In addition, we provide evidence that the structure of several, predominantly frontal, and parietal brain regions, partially mediated this direct age effect, models including measures of brain structure explained an additional 3-9% of the variance in ultra-SWA and 4-5% of the variance in delta-SWA, with no differences between sexes. Replacing age with pubertal status in models produced similar results. As reductions in GM volume and cortical thickness likely indicate synaptic pruning and myelination, these results suggest that diminished SWA in older, more mature adolescents may largely be driven by such processes within a number of frontal and parietal brain regions.
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Affiliation(s)
- Aimée Goldstone
- Centre for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA, 94025, USA
| | - Adrian R Willoughby
- Centre for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA, 94025, USA
| | - Massimiliano de Zambotti
- Centre for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA, 94025, USA
| | - Peter L Franzen
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Dongjin Kwon
- Centre for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA, 94025, USA.,Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Kilian M Pohl
- Centre for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA, 94025, USA.,Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Adolf Pfefferbaum
- Centre for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA, 94025, USA.,Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Edith V Sullivan
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Eva M Müller-Oehring
- Centre for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA, 94025, USA.,Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Devin E Prouty
- Centre for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA, 94025, USA
| | - Brant P Hasler
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Duncan B Clark
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Ian M Colrain
- Centre for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA, 94025, USA.,Melbourne School of Psychological Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Fiona C Baker
- Centre for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA, 94025, USA. .,Brain Function Research Group, School of Physiology, University of Witwatersrand, Johannesburg, South Africa.
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87
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Raz N, Daugherty AM. Pathways to Brain Aging and Their Modifiers: Free-Radical-Induced Energetic and Neural Decline in Senescence (FRIENDS) Model - A Mini-Review. Gerontology 2017; 64:49-57. [PMID: 28858861 DOI: 10.1159/000479508] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 07/15/2017] [Indexed: 12/19/2022] Open
Abstract
In this mini-review, we survey the extant literature on brain aging, with the emphasis on longitudinal studies of neuroanatomy, including regional brain volumes and white matter microstructure. We assess the impact of vascular, metabolic, and inflammatory risk factors on the trajectories of change in regional brain volumes and white matter properties, as well as the relationships between neuroanatomical and physiological changes and their influence on cognitive performance. We examine these findings in the context of current biological theories of aging and propose the means of integrating noninvasive measures - spectroscopic indices of brain energy metabolism and regional iron deposits - as valuable proxies for elucidating the basic neurobiology of human brain aging. In a brief summary of the recent findings pertaining to age-related changes in the brain structure and their impact on cognition, we discuss the role of vascular, metabolic, and inflammatory risk factors in shaping the trajectories of change. Drawing on the extant biological theories of aging and mindful of the brain's role as a disproportionately voracious energy consumer in mammals, we emphasize the importance of the fundamental bioenergetic mechanisms as drivers of age-related changes in brain structure and function. We sketch out a model that builds on the conceptualization of aging as an expression of cumulative cellular damage inflicted by reactive oxygen species and ensuing declines in energy metabolism. We outline the ways and means of adapting this model, Free-Radical-Induced Energetic and Neural Decline in Senescence (FRIENDS), to human aging and testing it within the constraints of noninvasive neuroimaging.
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Affiliation(s)
- Naftali Raz
- Institute of Gerontology, Wayne State University, Detroit, MI, USA
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88
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Hippocampal MicroRNA-124 Enhances Chronic Stress Resilience in Mice. J Neurosci 2017; 36:7253-67. [PMID: 27383599 DOI: 10.1523/jneurosci.0319-16.2016] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 06/02/2016] [Indexed: 01/18/2023] Open
Abstract
UNLABELLED Chronic stress-induced aberrant gene expression in the brain and subsequent dysfunctional neuronal plasticity have been implicated in the etiology and pathophysiology of mood disorders. In this study, we examined whether altered expression of small, regulatory, noncoding microRNAs (miRNAs) contributes to the depression-like behaviors and aberrant neuronal plasticity associated with chronic stress. Mice exposed to chronic ultra-mild stress (CUMS) exhibited increased depression-like behaviors and reduced hippocampal expression of the brain-enriched miRNA-124 (miR-124). Aberrant behaviors and dysregulated miR-124 expression were blocked by chronic treatment with an antidepressant drug. The depression-like behaviors are likely not conferred directly by miR-124 downregulation because neither viral-mediated hippocampal overexpression nor intrahippocampal infusion of an miR-124 inhibitor affected depression-like behaviors in nonstressed mice. However, viral-mediated miR-124 overexpression in hippocampal neurons conferred behavioral resilience to CUMS, whereas inhibition of miR-124 led to greater behavioral susceptibility to a milder stress paradigm. Moreover, we identified histone deacetylase 4 (HDAC4), HDAC5, and glycogen synthase kinase 3β (GSK3β) as targets for miR-124 and found that intrahippocampal infusion of a selective HDAC4/5 inhibitor or GSK3 inhibitor had antidepressant-like actions on behavior. We propose that miR-124-mediated posttranscriptional controls of HDAC4/5 and GSK3β expressions in the hippocampus have pivotal roles in susceptibility/resilience to chronic stress. SIGNIFICANCE STATEMENT Depressive disorders are a major public health concern worldwide. Although a clear understanding of the etiology of depression is still lacking, chronic stress-elicited aberrant neuronal plasticity has been implicated in the pathophysiology of depression. We show that the hippocampal expression of microRNA-124 (miR-124), an endogenous small, noncoding RNA that represses gene expression posttranscriptionally, controls resilience/susceptibility to chronic stress-induced depression-like behaviors. These effects on depression-like behaviors may be mediated through regulation of the mRNA or protein expression levels of histone deacetylases HDAC4/5 and glycogen synthase kinase 3β, all highly conserved miR-124 targets. Moreover, miR-124 contributes to stress-induced dendritic hypotrophy and reduced spine density of dentate gyrus granule neurons. Modulation of hippocampal miR-124 pathways may have potential antidepressant effects.
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89
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The Nucleus Accumbens and Ketamine Treatment in Major Depressive Disorder. Neuropsychopharmacology 2017; 42:1739-1746. [PMID: 28272497 PMCID: PMC5518908 DOI: 10.1038/npp.2017.49] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 02/01/2017] [Accepted: 03/04/2017] [Indexed: 12/22/2022]
Abstract
Animal models of depression repeatedly showed stress-induced nucleus accumbens (NAc) hypertrophy. Recently, ketamine was found to normalize this stress-induced NAc structural growth. Here, we investigated NAc structural abnormalities in major depressive disorder (MDD) in two cohorts. Cohort A included a cross-sectional sample of 34 MDD and 26 healthy control (HC) subjects, with high-resolution magnetic resonance imaging (MRI) to estimate NAc volumes. Proton MR spectroscopy (1H MRS) was used to divide MDD subjects into two subgroups: glutamate-based depression (GBD) and non-GBD. A separate longitudinal sample (cohort B) included 16 MDD patients who underwent MRI at baseline then 24 h following intravenous infusion of ketamine (0.5 mg/kg). In cohort A, we found larger left NAc volume in MDD compared to controls (Cohen's d=1.05), but no significant enlargement in the right NAc (d=0.44). Follow-up analyses revealed significant subgrouping effects on the left (d⩾1.48) and right NAc (d⩾0.95) with larger bilateral NAc in non-GBD compared to GBD and HC. NAc volumes were not different between GBD and HC. In cohort B, ketamine treatment reduced left NAc, but increased left hippocampal, volumes in patients achieving remission. The cross-sectional data provided the first evidence of enlarged NAc in patients with MDD. These NAc abnormalities were limited to patients with non-GBD. The pilot longitudinal data revealed a pattern of normalization of left NAc and hippocampal volumes particularly in patients who achieved remission following ketamine treatment, an intriguing preliminary finding that awaits replication.
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90
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Reciprocal Interaction of Dendrite Geometry and Nuclear Calcium-VEGFD Signaling Gates Memory Consolidation and Extinction. J Neurosci 2017. [PMID: 28626015 DOI: 10.1523/jneurosci.2345-16.2017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Nuclear calcium is an important signaling end point in synaptic excitation-transcription coupling that is critical for long-term neuroadaptations. Here, we show that nuclear calcium acting via a target gene, VEGFD, is required for hippocampus-dependent fear memory consolidation and extinction in mice. Nuclear calcium-VEGFD signaling upholds the structural integrity and complexity of the dendritic arbor of CA1 neurons that renders those cells permissive for the efficient generation of synaptic input-evoked nuclear calcium transients driving the expression of plasticity-related genes. Therefore, the gating of memory functions rests on the reciprocally reinforcing maintenance of an intact dendrite geometry and a functional synapse-to-nucleus communication axis. In psychiatric and neurodegenerative disorders, therapeutic application of VEGFD may help to stabilize dendritic structures and network connectivity, which may prevent cognitive decline and could boost the efficacy of extinction-based exposure therapies.SIGNIFICANCE STATEMENT This study uncovers a reciprocal relationship between dendrite geometry, the ability to generate nuclear calcium transients in response to synaptic inputs, and the subsequent induction of expression of plasticity-related and dendritic structure-preserving genes. Insufficient nuclear calcium signaling in CA1 hippocampal neurons and, consequently, reduced expression of the nuclear calcium target gene VEGFD, a dendrite maintenance factor, leads to reduced-complexity basal dendrites of CA1 neurons, which severely compromises the animals' consolidation of both memory and extinction memory. The structure-protective function of VEGFD may prove beneficial in psychiatric disorders as well as neurodegenerative and aging-related conditions that are associated with loss of neuronal structures, dysfunctional excitation-transcription coupling, and cognitive decline.
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91
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Wrocklage KM, Averill LA, Cobb Scott J, Averill CL, Schweinsburg B, Trejo M, Roy A, Weisser V, Kelly C, Martini B, Harpaz-Rotem I, Southwick SM, Krystal JH, Abdallah CG. Cortical thickness reduction in combat exposed U.S. veterans with and without PTSD. Eur Neuropsychopharmacol 2017; 27:515-525. [PMID: 28279623 PMCID: PMC5429865 DOI: 10.1016/j.euroneuro.2017.02.010] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 01/20/2017] [Accepted: 02/21/2017] [Indexed: 12/26/2022]
Abstract
We investigated the extent of cortical thinning in U.S. Veterans exposed to combat who varied in the severity of their posttraumatic stress disorder (PTSD) symptoms. In addition, we explored the neural correlates of PTSD symptom dimensions and the interactive effects of combat exposure and PTSD upon cortical thickness. Sixty-nine combat exposed Veterans completed high-resolution magnetic resonance imaging (MRI) scans to estimate cortical thickness. The Clinician Administered PTSD Scale (CAPS) and Combat Exposure Scale (CES) assessments were completed to measure current PTSD and historical combat severity, respectively. PTSD symptom dimensions (numbing, avoidance, reexperiencing, anxious arousal, and dysphoric arousal) were studied. Vertex-wise whole cerebrum analyses were conducted. We found widespread negative correlations between CAPS severity and cortical thickness, particularly within the prefrontal cortex. This prefrontal correlation remained significant after controlling for depression severity, medication status, and other potential confounds. PTSD dimensions, except anxious arousal, negatively correlated with cortical thickness in various unique brain regions. CES negatively correlated with cortical thickness in the left lateral prefrontal, regardless of PTSD diagnosis. A significant interaction between CES and PTSD diagnosis was found, such that CES negatively correlated with cortical thickness in the non-PTSD, but not in the PTSD, participants. The results underscore the severity of cortical thinning in U.S. Veterans suffering from high level of PTSD symptoms, as well as in Veterans with no PTSD diagnosis but severe combat exposure. The latter finding raises considerable concerns about a concealed injury potentially related to combat exposure in the post-9/11 era.
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Affiliation(s)
- Kristen M Wrocklage
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Lynnette A Averill
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - J Cobb Scott
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; VISN4 Mental Illness Research, Education, and Clinical Center at the Philadelphia VA Medical Center, Philadelphia, Pennsylvania
| | - Christopher L Averill
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Brian Schweinsburg
- Department of Psychiatry, University of Connecticut Medical Center, Farmington, CT, United States
| | - Marcia Trejo
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Alicia Roy
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Valerie Weisser
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Christopher Kelly
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Brenda Martini
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Ilan Harpaz-Rotem
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Steven M Southwick
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - John H Krystal
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
| | - Chadi G Abdallah
- National Center for PTSD - Clinical Neurosciences Division, US Department of Veterans Affairs, West Haven, CT, United States; Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States.
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92
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Qiao H, An SC, Xu C, Ma XM. Role of proBDNF and BDNF in dendritic spine plasticity and depressive-like behaviors induced by an animal model of depression. Brain Res 2017; 1663:29-37. [DOI: 10.1016/j.brainres.2017.02.020] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 02/14/2017] [Accepted: 02/20/2017] [Indexed: 10/20/2022]
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93
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Garza-Villarreal EA, Chakravarty MM, Hansen B, Eskildsen SF, Devenyi GA, Castillo-Padilla D, Balducci T, Reyes-Zamorano E, Jespersen SN, Perez-Palacios P, Patel R, Gonzalez-Olvera JJ. The effect of crack cocaine addiction and age on the microstructure and morphology of the human striatum and thalamus using shape analysis and fast diffusion kurtosis imaging. Transl Psychiatry 2017; 7:e1122. [PMID: 28485734 PMCID: PMC5534960 DOI: 10.1038/tp.2017.92] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 03/16/2017] [Accepted: 03/21/2017] [Indexed: 01/18/2023] Open
Abstract
The striatum and thalamus are subcortical structures intimately involved in addiction. The morphology and microstructure of these have been studied in murine models of cocaine addiction (CA), showing an effect of drug use, but also chronological age in morphology. Human studies using non-invasive magnetic resonance imaging (MRI) have shown inconsistencies in volume changes, and have also shown an age effect. In this exploratory study, we used MRI-based volumetric and novel shape analysis, as well as a novel fast diffusion kurtosis imaging sequence to study the morphology and microstructure of striatum and thalamus in crack CA compared to matched healthy controls (HCs), while investigating the effect of age and years of cocaine consumption. We did not find significant differences in volume and mean kurtosis (MKT) between groups. However, we found significant contraction of nucleus accumbens in CA compared to HCs. We also found significant age-related changes in volume and MKT of CA in striatum and thalamus that are different to those seen in normal aging. Interestingly, we found different effects and contributions of age and years of consumption in volume, displacement and MKT changes, suggesting that each measure provides different but complementing information about morphological brain changes, and that not all changes are related to the toxicity or the addiction to the drug. Our findings suggest that the use of finer methods and sequences provides complementing information about morphological and microstructural changes in CA, and that brain alterations in CA are related cocaine use and age differently.
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Affiliation(s)
- E A Garza-Villarreal
- CONACYT, Instituto Nacional de Psiquiatría ‘Ramon de la Fuente Muñiz’, Mexico City, Mexico,Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría ‘Ramón de la Fuente Muñiz’, Mexico City, Mexico,Center of Functionally Integrative Neuroscience (CFIN) and MINDLab, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark,Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría ‘Ramón de la Fuente Muñiz’, Calzada Mexico-Xochimilco 101, Col. San Lorenzo Huipulco, Delegación Tlalpan, Mexico City C.P. 14370, Mexico. E-mail:
| | - MM Chakravarty
- Cerebral Imaging Centre, Douglas Mental Health University Institute, Montreal, QC, Canada,Department of Psychiatry, McGill University, Montreal, QC, Canada,Department of Biological and Biomedical Engineering, McGill University, Montreal, QC, Canada
| | - B Hansen
- Center of Functionally Integrative Neuroscience (CFIN) and MINDLab, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - S F Eskildsen
- Center of Functionally Integrative Neuroscience (CFIN) and MINDLab, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - G A Devenyi
- Cerebral Imaging Centre, Douglas Mental Health University Institute, Montreal, QC, Canada
| | - D Castillo-Padilla
- CONACYT, Instituto Nacional de Psiquiatría ‘Ramon de la Fuente Muñiz’, Mexico City, Mexico,Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría ‘Ramón de la Fuente Muñiz’, Mexico City, Mexico
| | - T Balducci
- Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría ‘Ramón de la Fuente Muñiz’, Mexico City, Mexico
| | - E Reyes-Zamorano
- Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría ‘Ramón de la Fuente Muñiz’, Mexico City, Mexico,School of Psychology, Universidad Anáhuac México Sur, Mexico City, Mexico
| | - S N Jespersen
- Center of Functionally Integrative Neuroscience (CFIN) and MINDLab, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark,Department of Physics and Astronomy, Aarhus University, Aarhus, Denmark
| | - P Perez-Palacios
- Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría ‘Ramón de la Fuente Muñiz’, Mexico City, Mexico
| | - R Patel
- Cerebral Imaging Centre, Douglas Mental Health University Institute, Montreal, QC, Canada,Department of Biological and Biomedical Engineering, McGill University, Montreal, QC, Canada
| | - J J Gonzalez-Olvera
- Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría ‘Ramón de la Fuente Muñiz’, Mexico City, Mexico
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94
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Moore DM, D'Mello AM, McGrath LM, Stoodley CJ. The developmental relationship between specific cognitive domains and grey matter in the cerebellum. Dev Cogn Neurosci 2017; 24:1-11. [PMID: 28088647 PMCID: PMC5429176 DOI: 10.1016/j.dcn.2016.12.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 10/17/2016] [Accepted: 12/09/2016] [Indexed: 12/24/2022] Open
Abstract
There is growing evidence that the cerebellum is involved in cognition and cognitive development, yet little is known about the developmental relationship between cerebellar structure and cognitive subdomains in children. We used voxel-based morphometry to assess the relationship between cerebellar grey matter (GM) and language, reading, working memory, executive function, and processing speed in 110 individuals aged 8-17 years from the Pediatric Imaging, Neurocognition, and Genetics (PING) Study. Further, we examined the effect of age on the relationships between cerebellar GM and cognition. Higher scores on vocabulary, reading, working memory, and set-shifting were associated with increased GM in the posterior cerebellum (lobules VI-IX), in regions which are typically engaged during cognitive tasks in healthy adults. For reading, working memory, and processing speed, the relationship between cerebellar GM and cognitive performance changed with age in specific cerebellar subregions. As in adults, posterior lobe cerebellar GM was associated with cognitive performance in a pediatric population, and this relationship mirrored the known developmental trajectory of posterior cerebellar GM. These findings provide further evidence that specific regions of the cerebellum support cognition and cognitive development, and suggest that the strength of this relationship depends on developmental stage.
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Affiliation(s)
- Dorothea M Moore
- Department of Psychology, American University, Washington, DC, USA
| | - Anila M D'Mello
- Department of Psychology, American University, Washington, DC, USA
| | - Lauren M McGrath
- School of Education, American University, Washington, DC, USA; Center for Behavioral Neuroscience, American University, Washington, DC, USA; Department of Psychology, University of Denver, Denver, CO, USA
| | - Catherine J Stoodley
- Department of Psychology, American University, Washington, DC, USA; Center for Behavioral Neuroscience, American University, Washington, DC, USA.
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95
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Anderzhanova E, Kirmeier T, Wotjak CT. Animal models in psychiatric research: The RDoC system as a new framework for endophenotype-oriented translational neuroscience. Neurobiol Stress 2017; 7:47-56. [PMID: 28377991 PMCID: PMC5377486 DOI: 10.1016/j.ynstr.2017.03.003] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 02/14/2017] [Accepted: 03/20/2017] [Indexed: 02/06/2023] Open
Abstract
The recently proposed Research Domain Criteria (RDoC) system defines psychopathologies as phenomena of multilevel neurobiological existence and assigns them to 5 behavioural domains characterizing a brain in action. We performed an analysis on this contemporary concept of psychopathologies in respect to a brain phylogeny and biological substrates of psychiatric diseases. We found that the RDoC system uses biological determinism to explain the pathogenesis of distinct psychiatric symptoms and emphasises exploration of endophenotypes but not of complex diseases. Therefore, as a possible framework for experimental studies it allows one to evade a major challenge of translational studies of strict disease-to-model correspondence. The system conforms with the concept of a normality and pathology continuum, therefore, supports basic studies. The units of analysis of the RDoC system appear as a novel matrix for model validation. The general regulation and arousal, positive valence, negative valence, and social interactions behavioural domains of the RDoC system show basic construct, network, and phenomenological homologies between human and experimental animals. The nature and complexity of the cognitive behavioural domain of the RDoC system deserve further clarification. These homologies in the 4 domains justifies the validity, reliably and translatability of animal models appearing as endophenotypes of the negative and positive affect, social interaction and general regulation and arousal systems’ dysfunction. The RDoC system encourages endophenotype-oriented experimental studies in human and animals. The system conforms with the normality-pathology continuum concept. The RDoC system appears to be a suitable framework for basic research. Four RDoC domains show construct and phenomenological homology in human and animals. Endophenotype-based models of affective psychopathologies appear most reliable.
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Affiliation(s)
- Elmira Anderzhanova
- Max Planck Institute of Psychiatry, Department of Stress Neurobiology and Neurogenetics, Kraepelinstrasse 2, 80804 Munich, Germany; FSBI "Zakusov Institute of Pharmacology", Baltiyskaya street, 8, 125315, Moscow, Russia
| | | | - Carsten T Wotjak
- Max Planck Institute of Psychiatry, Department of Stress Neurobiology and Neurogenetics, Kraepelinstrasse 2, 80804 Munich, Germany
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96
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Belujon P. Structural Integrity in the Sustained Antidepressant Effect of Ketamine. Int J Neuropsychopharmacol 2017; 20:359-361. [PMID: 28165131 PMCID: PMC5409126 DOI: 10.1093/ijnp/pyw117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 12/23/2016] [Indexed: 11/13/2022] Open
Affiliation(s)
- Pauline Belujon
- INSERM, U1084, F-86022 Poitiers, France; Université de Poitiers, U1084, F-86022 Poitiers, France
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97
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Chakraborty N, Meyerhoff J, Jett M, Hammamieh R. Genome to Phenome: A Systems Biology Approach to PTSD Using an Animal Model. Methods Mol Biol 2017; 1598:117-154. [PMID: 28508360 DOI: 10.1007/978-1-4939-6952-4_6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Post-traumatic stress disorder (PTSD) is a debilitating illness that imposes significant emotional and financial burdens on military families. The understanding of PTSD etiology remains elusive; nonetheless, it is clear that PTSD is manifested by a cluster of symptoms including hyperarousal, reexperiencing of traumatic events, and avoidance of trauma reminders. With these characteristics in mind, several rodent models have been developed eliciting PTSD-like features. Animal models with social dimensions are of particular interest, since the social context plays a major role in the development and manifestation of PTSD.For civilians, a core trauma that elicits PTSD might be characterized by a singular life-threatening event such as a car accident. In contrast, among war veterans, PTSD might be triggered by repeated threats and a cumulative psychological burden that coalesced in the combat zone. In capturing this fundamental difference, the aggressor-exposed social stress (Agg-E SS) model imposes highly threatening conspecific trauma on naïve mice repeatedly and randomly.There is abundant evidence that suggests the potential role of genetic contributions to risk factors for PTSD. Specific observations include putatively heritable attributes of the disorder, the cited cases of atypical brain morphology, and the observed neuroendocrine shifts away from normative. Taken together, these features underscore the importance of multi-omics investigations to develop a comprehensive picture. More daunting will be the task of downstream analysis with integration of these heterogeneous genotypic and phenotypic data types to deliver putative clinical biomarkers. Researchers are advocating for a systems biology approach, which has demonstrated an increasingly robust potential for integrating multidisciplinary data. By applying a systems biology approach here, we have connected the tissue-specific molecular perturbations to the behaviors displayed by mice subjected to Agg-E SS. A molecular pattern that links the atypical fear plasticity to energy deficiency was thereby identified to be causally associated with many behavioral shifts and transformations.PTSD is a multifactorial illness sensitive to environmental influence. Accordingly, it is essential to employ the optimal animal model approximating the environmental condition that elicits PTSD-like symptoms. Integration of an optimal animal model with a systems biology approach can contribute to a more knowledge-driven and efficient next-generation care management system and, potentially, prevention of PTSD.
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Affiliation(s)
- Nabarun Chakraborty
- Integrative Systems Biology, Geneva Foundation, USACEHR, 568 Doughten Drive, Fredrick, MD, 21702-5010, USA
| | - James Meyerhoff
- Integrative Systems Biology, Geneva Foundation, USACEHR, 568 Doughten Drive, Fredrick, MD, 21702-5010, USA
| | - Marti Jett
- Integrative Systems Biology, US Army Center for Environmental Health Research, USACEHR, 568 Doughten Drive, Frederick, MD, 21702-5010, USA
| | - Rasha Hammamieh
- Integrative Systems Biology, US Army Center for Environmental Health Research, USACEHR, 568 Doughten Drive, Frederick, MD, 21702-5010, USA.
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98
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Boedhoe PS, Schmaal L, Abe Y, Ameis SH, Arnold PD, Batistuzzo MC, Benedetti F, Beucke JC, Bollettini I, Bose A, Brem S, Calvo A, Cheng Y, Cho KIK, Dallaspezia S, Denys D, Fitzgerald KD, Fouche JP, Giménez M, Gruner P, Hanna GL, Hibar DP, Hoexter MQ, Huyser C, Ikari K, Jahanshad N, Kathmann N, Kaufmann C, Koch K, Kwon JS, Lazaro L, Liu Y, Lochner C, Marsh R, Martínez-Zalacaín I, Mataix-Cols D, Menchón JM, Minuzzii L, Nakamae T, Nakao T, Narayanaswamy JC, Piras F, Piras F, Pittenger C, Reddy YJ, Sato JR, Simpson HB, Soreni N, Soriano-Mas C, Spalletta G, Stevens MC, Szeszko PR, Tolin DF, Venkatasubramanian G, Walitza S, Wang Z, van Wingen GA, Xu J, Xu X, Yun JY, Zhao Q, Thompson PM, Stein DJ, van den Heuvel OA, van den Heuvel OA. Distinct Subcortical Volume Alterations in Pediatric and Adult OCD: A Worldwide Meta- and Mega-Analysis. Am J Psychiatry 2017; 174:60-69. [PMID: 27609241 PMCID: PMC5344782 DOI: 10.1176/appi.ajp.2016.16020201] [Citation(s) in RCA: 212] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Structural brain imaging studies in obsessive-compulsive disorder (OCD) have produced inconsistent findings. This may be partially due to limited statistical power from relatively small samples and clinical heterogeneity related to variation in illness profile and developmental stage. To address these limitations, the authors conducted meta- and mega-analyses of data from OCD sites worldwide. METHOD T1 images from 1,830 OCD patients and 1,759 control subjects were analyzed, using coordinated and standardized processing, to identify subcortical brain volumes that differ between OCD patients and healthy subjects. The authors performed a meta-analysis on the mean of the left and right hemisphere measures of each subcortical structure, and they performed a mega-analysis by pooling these volumetric measurements from each site. The authors additionally examined potential modulating effects of clinical characteristics on morphological differences in OCD patients. RESULTS The meta-analysis indicated that adult patients had significantly smaller hippocampal volumes (Cohen's d=-0.13; % difference=-2.80) and larger pallidum volumes (d=0.16; % difference=3.16) compared with adult controls. Both effects were stronger in medicated patients compared with controls (d=-0.29, % difference=-4.18, and d=0.29, % difference=4.38, respectively). Unmedicated pediatric patients had significantly larger thalamic volumes (d=0.38, % difference=3.08) compared with pediatric controls. None of these findings were mediated by sample characteristics, such as mean age or scanning field strength. The mega-analysis yielded similar results. CONCLUSIONS The results indicate different patterns of subcortical abnormalities in pediatric and adult OCD patients. The pallidum and hippocampus seem to be of importance in adult OCD, whereas the thalamus seems to be key in pediatric OCD. These findings highlight the potential importance of neurodevelopmental alterations in OCD and suggest that further research on neuroplasticity in OCD may be useful.
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Affiliation(s)
- Premika S.W. Boedhoe
- Department of Psychiatry, VU university medical center, Amsterdam, The Netherlands,Department of Anatomy & Neurosciences, VU university medical center, Amsterdam, The Netherlands,Neuroscience Campus Amsterdam, Free University/VU university medical center, Amsterdam, The Netherlands
| | - Lianne Schmaal
- Department of Psychiatry, VU university medical center, Amsterdam, The Netherlands,Neuroscience Campus Amsterdam, Free University/VU university medical center, Amsterdam, The Netherlands
| | - Yoshinari Abe
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Stephanie H. Ameis
- Centre for Addiction and Mental Health and Hospital for Sick Children, Toronto, Ontario, Canada
| | - Paul D. Arnold
- Mathison Centre for Mental Health Research & Education, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Marcelo C. Batistuzzo
- Department of Psychiatry, Institute of Psychiatry, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Francesco Benedetti
- Clinical Research Group Psychiatry and Clinical Psychobiology, Division of Neuroscience, Scientific Institute Ospedale San Raffaele, Milano, Italy
| | - Jan C. Beucke
- Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Irene Bollettini
- Clinical Research Group Psychiatry and Clinical Psychobiology, Division of Neuroscience, Scientific Institute Ospedale San Raffaele, Milano, Italy
| | - Anushree Bose
- Obsessive-Compulsive Disorder (OCD) Clinic, Department of Psychiatry National Institute of Mental Health & Neurosciences, Bangalore, India
| | - Silvia Brem
- Department of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric Hospital, University of Zurich, Zurich, Switzerland
| | - Anna Calvo
- Magnetic Resonance Image Core Facility, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Yuqi Cheng
- Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Kang Ik K. Cho
- Department of Brain & Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Korea
| | - Sara Dallaspezia
- Clinical Research Group Psychiatry and Clinical Psychobiology, Division of Neuroscience, Scientific Institute Ospedale San Raffaele, Milano, Italy
| | - Damiaan Denys
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands,Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands
| | - Kate D. Fitzgerald
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, U.S.A
| | - Jean-Paul Fouche
- Department of Psychiatry, University of Cape Town, Cape Town, South Africa,Department of Psychiatry, University of Stellenbosch, Cape Town, South Africa
| | - Mònica Giménez
- Department of Psychiatry, Bellvitge University Hospital, Bellvitge Biomedical Research Institute-IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain,entro de Investigación Biomèdica en Red de Salud Mental (CIBERSAM), Barcelona, Spain
| | - Patricia Gruner
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, U.S.A
| | - Gregory L. Hanna
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, U.S.A
| | - Derrek P. Hibar
- Imaging Genetics Center, Mark and Mary Stevens Institute for Neuroimaging & Informatics, Keck School of Medicine of the University of Southern California, Marina del Rey, California, U.S.A
| | - Marcelo Q. Hoexter
- Department of Psychiatry, Institute of Psychiatry, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Chaim Huyser
- De Bascule, Academic Center for Child and Adolescent Psychiatry, Amsterdam, The Netherlands,Department of Child and Adolescent Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Keisuke Ikari
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Neda Jahanshad
- Imaging Genetics Center, Mark and Mary Stevens Institute for Neuroimaging & Informatics, Keck School of Medicine of the University of Southern California, Marina del Rey, California, U.S.A
| | - Norbert Kathmann
- Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Christian Kaufmann
- Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Kathrin Koch
- Department of Neuroradiology, Klinikum rechts der Isar, Technische Universität München, München, Germany,TUM-Neuroimaging Center (TUM-NIC) of Klinikum rechts der Isar, Technische Universität München, München, Germany
| | - Jun Soo Kwon
- Department of Brain & Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Korea,Department of Psychiatry, Seoul National University College of Medicine, Seoul, Korea
| | - Luisa Lazaro
- entro de Investigación Biomèdica en Red de Salud Mental (CIBERSAM), Barcelona, Spain,Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences, Hospital Clínic Universitari, Barcelona, Spain,Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Department of Psychiatry and Clinical Psychobiology, University of Barcelona, Barcelona, Spain
| | - Yanni Liu
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, U.S.A
| | - Christine Lochner
- SU/UCT MRC Unit on Anxiety & Stress Disorders, Department of Psychiatry, University of Stellenbosch, Cape Town, South Africa
| | - Rachel Marsh
- Columbia University Medical College, Columbia University, New York, NY, U.S.A,The Division of Child and Adolescent Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, U.S.A
| | - Ignacio Martínez-Zalacaín
- Department of Psychiatry, Bellvitge University Hospital, Bellvitge Biomedical Research Institute-IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain
| | - David Mataix-Cols
- Department of Clinical Neuroscience, Centre for Psychiatric Research and Education, Karolinska Institutet, Stockholm, Sweden
| | - José M. Menchón
- Department of Psychiatry, Bellvitge University Hospital, Bellvitge Biomedical Research Institute-IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain,entro de Investigación Biomèdica en Red de Salud Mental (CIBERSAM), Barcelona, Spain,Department of Clinical Sciences, University of Barcelona, Barcelona, Spain
| | - Luciano Minuzzii
- Mood Disorders Clinic, St. Joseph’s HealthCare, Hamilton, Ontario, Canada
| | - Takashi Nakamae
- Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan,Department of Neural Computation for Decision-Making, ATR Brain Information Communiciation Research Laboratory Group, Kyoto, Japan
| | - Tomohiro Nakao
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Janardhanan C. Narayanaswamy
- Obsessive-Compulsive Disorder (OCD) Clinic, Department of Psychiatry National Institute of Mental Health & Neurosciences, Bangalore, India
| | - Fabrizio Piras
- Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Federica Piras
- Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Christopher Pittenger
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut, U.S.A
| | - Y.C. Janardhan Reddy
- Obsessive-Compulsive Disorder (OCD) Clinic, Department of Psychiatry National Institute of Mental Health & Neurosciences, Bangalore, India
| | - Joao R. Sato
- Center of Mathematics, Computation and Cognition, Universidade Federal Do ABC, Santo Andre, Brazil
| | - H. Blair Simpson
- Columbia University Medical College, Columbia University, New York, NY, U.S.A,Center for OCD and Related Disorders, New York State Psychiatric Institute, New York, NY, U.S.A
| | - Noam Soreni
- Anxiety Treatment and Research Center, St. Joseph’s HealthCare, Hamilton, Ontario, Canada
| | - Carles Soriano-Mas
- Department of Psychiatry, Bellvitge University Hospital, Bellvitge Biomedical Research Institute-IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain,entro de Investigación Biomèdica en Red de Salud Mental (CIBERSAM), Barcelona, Spain,Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Gianfranco Spalletta
- Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy,Beth K. and Stuart C. Yudofsky Division of Neuropsychiatry, Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, Texas, U.S.A
| | - Michael C. Stevens
- Yale University School of Medicine, New Haven, Connecticut, U.S.A,Clinical Neuroscience and Development Laboratory, Olin Neuropsychiatry Research Center, Hartford, Connecticut, U.S.A
| | - Philip R. Szeszko
- Icahn School of Medicine at Mount Sinai, New York, NY, U.S.A,James J. Peters VA Medical Center, Bronx, NY, U.S.A
| | - David F. Tolin
- Yale University School of Medicine, New Haven, Connecticut, U.S.A,Institute of Living/Hartford Hospital, Hartford, Connecticut, U.S.A
| | - Ganesan Venkatasubramanian
- Obsessive-Compulsive Disorder (OCD) Clinic, Department of Psychiatry National Institute of Mental Health & Neurosciences, Bangalore, India
| | - Susanne Walitza
- Department of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric Hospital, University of Zurich, Zurich, Switzerland
| | - Zhen Wang
- Shanghai Mental Health Center Shanghai Jiao Tong University School of Medicine, Shanghai, PR China,Shanghai Key Laboratory of Psychotic Disorders, Shanghai, PR China
| | - Guido A. van Wingen
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Jian Xu
- Department of Internal Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiufeng Xu
- Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Je-Yeon Yun
- Department of Psychiatry, Seoul National University College of Medicine, Seoul, Korea
| | - Qing Zhao
- Shanghai Mental Health Center Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | | | - Paul M. Thompson
- Imaging Genetics Center, Mark and Mary Stevens Institute for Neuroimaging & Informatics, Keck School of Medicine of the University of Southern California, Marina del Rey, California, U.S.A
| | - Dan J. Stein
- SU/UCT MRC Unit on Anxiety & Stress Disorders, Department of Psychiatry, University of Stellenbosch, Cape Town, South Africa
| | - Odile A. van den Heuvel
- Department of Psychiatry, VU university medical center, Amsterdam, The Netherlands,Department of Anatomy & Neurosciences, VU university medical center, Amsterdam, The Netherlands,Neuroscience Campus Amsterdam, Free University/VU university medical center, Amsterdam, The Netherlands
| | - Odile A van den Heuvel
- From the Department of Psychiatry and the Department of Anatomy and Neurosciences, VU University Medical Center, Amsterdam; Neuroscience Campus Amsterdam, Free University/VU University Medical Center, Amsterdam; the Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan; the Centre for Addiction and Mental Health and Hospital for Sick Children, Toronto; the Mathison Centre for Mental Health Research and Education, Cumming School of Medicine, University of Calgary, Calgary, Canada; the Department of Psychiatry, Institute of Psychiatry, University of São Paulo School of Medicine, São Paulo, Brazil; Clinical Research Group Psychiatry and Clinical Psychobiology, Division of Neuroscience, Scientific Institute Ospedale San Raffaele, Milan; the Department of Psychology, Humboldt-Universität zu Berlin, Berlin; the Obsessive-Compulsive Disorder Clinic, Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, India; the Department of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric Hospital, University of Zurich, Zurich; Magnetic Resonance Image Core Facility, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; the Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, Kunming, China; the Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Korea; the Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam; the Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam; the Department of Psychiatry, University of Michigan, Ann Arbor; the Department of Psychiatry, University of Cape Town, Cape Town, South Africa; the Department of Psychiatry, University of Stellenbosch, Cape Town; the Department of Psychiatry, Bellvitge University Hospital, Bellvitge Biomedical Research Institute-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomèdica en Red de Salud Mental (CIBERSAM), Barcelona; the Department of Psychiatry, Yale University School of Medicine, New Haven, Conn.; the Imaging Genetics Center, Mark and Mary Stevens Institute for Neuroimaging and Informatics, Keck School of Medicine, University of Southern California, Marina del Rey; De Bascule, Academic Center for Child and Adolescent Psychiatry, Amsterdam; the Department of Child and Adolescent Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam; the Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; the Department of Neuroradiology, Klinikum rechts der Isar, Technische Universität München, Munich; TUM-Neuroimaging Center (TUM-NIC) of Klinikum rechts der Isar, Technische Universität München, Munich; the Department of Psychiatry, Seoul National University College of Medicine, Seoul, Korea; the Department of Child and Adolescent Psychiatry and Psychology, Institute of Neurosciences, Hospital Clínic Universitari, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona; the Department of Psychiatry and Clinical Psychobiology, University of Barcelona, Barcelona, Spain; SU/UCT MRC Unit on Anxiety and Stress Disorders, Department of Psychiatry, University of Stellenbosch, Cape Town, South Africa; Columbia University Medical Center, New York; the Division of Child and Adolescent Psychiatry, New York State Psychiatric Institute and Columbia University, New York; the Department of Clinical Neuroscience, Center for Psychiatric Research and Education, Karolinska Institutet, Stockholm; the Department of Clinical Sciences, University of Barcelona, Barcelona, Spain; the Mood Disorders Clinic and the Anxiety Treatment and Research Center, St. Joseph's HealthCare, Hamilton, Canada; the Department of Neural Computation for Decision Making, ATR Brain Information Communiciation Research Laboratory Group, Kyoto, Japan; the Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome; the Center of Mathematics, Computation, and Cognition, Universidade Federal Do ABC, Santo Andre, Brazil; the Center for OCD and Related Disorders, New York State Psychiatric Institute, New York; the Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Barcelona, Spain; the Beth K. and Stuart C. Yudofsky Division of Neuropsychiatry, Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston; the Department of Psychiatry, Yale University School of Medicine, New Haven, Conn.; the Clinical Neuroscience and Development Laboratory, Olin Neuropsychiatry Research Center, Hartford, Conn.; the Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York; the James J. Peters VA Medical Center, Bronx, New York; the Institute of Living/Hartford Hospital, Hartford, Conn.; the Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China; the Shanghai Key Laboratory of Psychotic Disorders, Shanghai; and the Department of Internal Medicine, First Affiliated Hospital of Kunming Medical University, Kunming, China
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99
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Averill LA, Purohit P, Averill CL, Boesl MA, Krystal JH, Abdallah CG. Glutamate dysregulation and glutamatergic therapeutics for PTSD: Evidence from human studies. Neurosci Lett 2016; 649:147-155. [PMID: 27916636 DOI: 10.1016/j.neulet.2016.11.064] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/18/2016] [Accepted: 11/30/2016] [Indexed: 12/20/2022]
Abstract
Posttraumatic stress disorder (PTSD) is a chronic and debilitating psychiatric disorder afflicting millions of individuals across the world. While the availability of robust pharmacologic interventions is quite lacking, our understanding of the putative neurobiological underpinnings of PTSD has significantly increased over the past two decades. Accumulating evidence demonstrates aberrant glutamatergic function in mood, anxiety, and trauma-related disorders and dysfunction in glutamate neurotransmission is increasingly considered a cardinal feature of stress-related psychiatric disorders including PTSD. As part of a PTSD Special Issue, this mini-review provides a concise discussion of (1) evidence of glutamatergic abnormalities in PTSD, with emphasis on human subjects data; (2) glutamate-modulating agents as potential alternative pharmacologic treatments for PTSD; and (3) selected gaps in the literature and related future directions.
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Affiliation(s)
- Lynnette A Averill
- Clinical Neurosciences Division, United States Department of Veterans Affairs, National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA; Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT, 06511, USA.
| | - Prerana Purohit
- Clinical Neurosciences Division, United States Department of Veterans Affairs, National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA; Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT, 06511, USA
| | - Christopher L Averill
- Clinical Neurosciences Division, United States Department of Veterans Affairs, National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA; Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT, 06511, USA
| | - Markus A Boesl
- Clinical Neurosciences Division, United States Department of Veterans Affairs, National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA; Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT, 06511, USA
| | - John H Krystal
- Clinical Neurosciences Division, United States Department of Veterans Affairs, National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA; Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT, 06511, USA
| | - Chadi G Abdallah
- Clinical Neurosciences Division, United States Department of Veterans Affairs, National Center for Posttraumatic Stress Disorder, VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT, 06516, USA; Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT, 06511, USA
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100
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Kawamichi H, Sugawara SK, Hamano YH, Makita K, Matsunaga M, Tanabe HC, Ogino Y, Saito S, Sadato N. Being in a Romantic Relationship Is Associated with Reduced Gray Matter Density in Striatum and Increased Subjective Happiness. Front Psychol 2016; 7:1763. [PMID: 27895606 PMCID: PMC5107565 DOI: 10.3389/fpsyg.2016.01763] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 10/26/2016] [Indexed: 11/13/2022] Open
Abstract
Romantic relationship, a widespread feature of human society, is one of the most influential factors in daily life. Although stimuli related to romantic love or being in a romantic relationship commonly result in enhancement of activation or functional connectivity of the reward system, including the striatum, the structure underlying romantic relationship-related regions remain unclear. Because individual experiences can alter gray matter within the adult human brain, we hypothesized that romantic relationship is associated with structural differences in the striatum related to the positive subjective experience of being in a romantic relationship. Because intimate romantic relationships contribute to perceived subjective happiness, this subjective enhancement of happiness might be accompanied by the experience of positive events related to being in a romantic relationship. To test this hypothesis and elucidate the structure involved, we compared subjective happiness, an indirect measure of the existence of positive experiences caused by being in a romantic relationship, of participants with or without romantic partners (N = 68). Furthermore, we also conducted a voxel-based morphometry study of the effects of being in a romantic relationship (N = 113). Being in a romantic relationship was associated with greater subjective happiness and reduced gray matter density within the right dorsal striatum. These results suggest that being in a romantic relationship enhances perceived subjective happiness via positive experiences. Furthermore, the observed reduction in gray matter density in the right dorsal striatum may reflect an increase in saliency of social reward within a romantic relationship. Thus, being in a romantic relationship is associated with positive experiences and a reduction of gray matter density in the right dorsal striatum, representing a modulation of social reward.
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Affiliation(s)
- Hiroaki Kawamichi
- Division of Cerebral Integration, Department of Cerebral Research, National Institute for Physiological SciencesOkazaki, Japan; School of Medicine, Faculty of Medicine, Gunma UniversityMaebashi, Japan; Graduate School of Human Health Sciences, Tokyo Metropolitan UniversityTokyo, Japan
| | - Sho K Sugawara
- Division of Cerebral Integration, Department of Cerebral Research, National Institute for Physiological Sciences Okazaki, Japan
| | - Yuki H Hamano
- Division of Cerebral Integration, Department of Cerebral Research, National Institute for Physiological SciencesOkazaki, Japan; Department of Physiological Sciences, SOKENDAI (The Graduate University for Advanced Studies)Hayama, Japan
| | - Kai Makita
- Division of Cerebral Integration, Department of Cerebral Research, National Institute for Physiological Sciences Okazaki, Japan
| | - Masahiro Matsunaga
- Department of Health and Psychosocial Medicine, School of Medicine, Aichi Medical University Nagakute, Japan
| | - Hiroki C Tanabe
- Department of Social and Human Environment, Graduate School of Environmental Studies, Nagoya University Nagoya, Japan
| | - Yuichi Ogino
- Department of Anesthesiology, Graduate School of Medicine, Gunma University Maebashi, Japan
| | - Shigeru Saito
- Department of Anesthesiology, Graduate School of Medicine, Gunma University Maebashi, Japan
| | - Norihiro Sadato
- Division of Cerebral Integration, Department of Cerebral Research, National Institute for Physiological SciencesOkazaki, Japan; Department of Physiological Sciences, SOKENDAI (The Graduate University for Advanced Studies)Hayama, Japan
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