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Ethofer S, Milian M, Erb M, Rona S, Honegger J, Ethofer T. Investigating the effect of hippocampal sclerosis on parietal memory network. Epilepsia Open 2024; 9:287-299. [PMID: 38017670 PMCID: PMC10839411 DOI: 10.1002/epi4.12870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 11/21/2023] [Indexed: 11/30/2023] Open
Abstract
OBJECTIVE We aimed to investigate differences in episodic memory networks between patients with temporal lobe epilepsy (TLE) due to hippocampal sclerosis and healthy controls, especially with regards to the parietal memory network (PMN), as well as their relation to neuropsychological memory performance after mesial temporal resection. METHODS 28 healthy subjects as well as 21 patients with TLE (12 left, 9 right) were investigated using a spatial memory fMRI paradigm, which has been shown to activate the PMN. Regions of interest (ROI) were defined based on the results of the second-level analyses and activations within the predefined ROIs were compared across groups and correlated with postoperative verbal and nonverbal memory scores. RESULTS Healthy subjects showed activations within regions belonging to the dorsal visual stream and the PMN as well as the bilateral parahippocampal place area, the bilateral frontal eye field, and the bilateral middle frontal gyrus. Comparison between groups revealed that TLE patients activated significantly less in the left middle occipital gyrus and the right precuneus. The activation pattern in left TLE patients showed further reductions, mainly in areas belonging to the dorsal visual stream and the PMN within the left hemisphere. Activations within the left superior parietal lobulus, bilateral inferior parietal lobulus, bilateral middle temporal gyrus, left precuneus, left frontal eye field, and left middle frontal gyrus correlated significantly with postoperative verbal memory scores, and activations within the left superior parietal lobulus, left inferior parietal lobulus, left middle temporal gyrus, and left precuneus correlated significantly with higher performance in postoperative nonverbal memory scores. SIGNIFICANCE The PMN is involved in episodic memory encoding. Higher activations in areas belonging to the PMN and the dorsal visual stream, especially within the left hemisphere, before amygdalohippocampectomy may result in higher postoperative memory scores. PLAIN LANGUAGE SUMMARY This study aims to investigate the effects of epilepsy due to hippocampal sclerosis, i.e. scarring in the temporal lobe, on memory networks in the brain. We discovered that especially patients with left-sided hippocampal sclerosis show reduced brain activations in visual areas and memory networks within the left hemisphere of the brain during orientation in space. Importantly, higher activations within these areas may result in better memory after epilepsy surgery.
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Affiliation(s)
- Silke Ethofer
- Department of NeurosurgeryUniversity Hospital TübingenTübingenGermany
| | - Monika Milian
- Department of NeurosurgeryUniversity Hospital TübingenTübingenGermany
| | - Michael Erb
- Department of Biomedical Magnetic ResonanceUniversity of TübingenTübingenGermany
| | - Sabine Rona
- Department of NeurosurgeryUniversity Hospital TübingenTübingenGermany
- Present address:
Klinik Lengg AG, Swiss Epilepsy ClinicZurichSwitzerland
| | - Jürgen Honegger
- Department of NeurosurgeryUniversity Hospital TübingenTübingenGermany
| | - Thomas Ethofer
- Department of Biomedical Magnetic ResonanceUniversity of TübingenTübingenGermany
- Department of Psychiatry and PsychotherapyUniversity Hospital TübingenTübingenGermany
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Wildgruber D, Hesse K, Eckstein K, Kreifelts B, Martus P, Erb M, Klingberg S. P-35 Neural correlates of psychotherapy-related reduction of negative symptoms in patients with psychosis. Clin Neurophysiol 2023. [DOI: 10.1016/j.clinph.2023.02.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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Charyasz E, Heule R, Molla F, Erb M, Kumar VJ, Grodd W, Scheffler K, Bause J. Functional mapping of sensorimotor activation in the human thalamus at 9.4 Tesla. Front Neurosci 2023; 17:1116002. [PMID: 37008235 PMCID: PMC10050447 DOI: 10.3389/fnins.2023.1116002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 02/27/2023] [Indexed: 03/17/2023] Open
Abstract
Although the thalamus is perceived as a passive relay station for almost all sensory signals, the function of individual thalamic nuclei remains unresolved. In the present study, we aimed to identify the sensorimotor nuclei of the thalamus in humans using task-based fMRI at a field strength of 9.4T by assessing the individual subject-specific sensorimotor BOLD response during a combined active motor (finger-tapping) and passive sensory (tactile-finger) stimulation. We demonstrate that both tasks increase BOLD signal response in the lateral nuclei group (VPL, VA, VLa, and VLp), and in the pulvinar nuclei group (PuA, PuM, and PuL). Finger-tapping stimuli evokes a stronger BOLD response compared to the tactile stimuli, and additionally engages the intralaminar nuclei group (CM and Pf). In addition, our results demonstrate reproducible thalamic nuclei activation during motor and tactile stimuli. This work provides important insight into understanding the function of individual thalamic nuclei in processing various input signals and corroborates the benefits of using ultra-high-field MR scanners for functional imaging of fine-scale deeply located brain structures.
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Affiliation(s)
- Edyta Charyasz
- Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
- Department for High Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Tübingen, Germany
- Graduate Training Centre of Neuroscience, Tübingen, Germany
- *Correspondence: Edyta Charyasz,
| | - Rahel Heule
- Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
- Department for High Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Tübingen, Germany
- Center for MR Research, University Children’s Hospital, Zurich, Switzerland
| | - Francesko Molla
- Department for High Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Tübingen, Germany
- Graduate Training Centre of Neuroscience, Tübingen, Germany
- Center for Neurology, Hertie-Institute for Clinical Brain Research, Tübingen, Germany
| | - Michael Erb
- Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
- Department for High Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Tübingen, Germany
| | - Vinod Jangir Kumar
- Department for High Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Tübingen, Germany
| | - Wolfgang Grodd
- Department for High Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Tübingen, Germany
| | - Klaus Scheffler
- Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
- Department for High Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Tübingen, Germany
| | - Jonas Bause
- Department for High Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Tübingen, Germany
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4
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Groenewold NA, Bas-Hoogendam JM, Amod AR, Laansma MA, Van Velzen LS, Aghajani M, Hilbert K, Oh H, Salas R, Jackowski AP, Pan PM, Salum GA, Blair JR, Blair KS, Hirsch J, Pantazatos SP, Schneier FR, Talati A, Roelofs K, Volman I, Blanco-Hinojo L, Cardoner N, Pujol J, Beesdo-Baum K, Ching CRK, Thomopoulos SI, Jansen A, Kircher T, Krug A, Nenadić I, Stein F, Dannlowski U, Grotegerd D, Lemke H, Meinert S, Winter A, Erb M, Kreifelts B, Gong Q, Lui S, Zhu F, Mwangi B, Soares JC, Wu MJ, Bayram A, Canli M, Tükel R, Westenberg PM, Heeren A, Cremers HR, Hofmann D, Straube T, Doruyter AGG, Lochner C, Peterburs J, Van Tol MJ, Gur RE, Kaczkurkin AN, Larsen B, Satterthwaite TD, Filippi CA, Gold AL, Harrewijn A, Zugman A, Bülow R, Grabe HJ, Völzke H, Wittfeld K, Böhnlein J, Dohm K, Kugel H, Schrammen E, Zwanzger P, Leehr EJ, Sindermann L, Ball TM, Fonzo GA, Paulus MP, Simmons A, Stein MB, Klumpp H, Phan KL, Furmark T, Månsson KNT, Manzouri A, Avery SN, Blackford JU, Clauss JA, Feola B, Harper JC, Sylvester CM, Lueken U, Veltman DJ, Winkler AM, Jahanshad N, Pine DS, Thompson PM, Stein DJ, Van der Wee NJA. Volume of subcortical brain regions in social anxiety disorder: mega-analytic results from 37 samples in the ENIGMA-Anxiety Working Group. Mol Psychiatry 2023; 28:1079-1089. [PMID: 36653677 PMCID: PMC10804423 DOI: 10.1038/s41380-022-01933-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 10/31/2022] [Accepted: 12/15/2022] [Indexed: 01/20/2023]
Abstract
There is limited convergence in neuroimaging investigations into volumes of subcortical brain regions in social anxiety disorder (SAD). The inconsistent findings may arise from variations in methodological approaches across studies, including sample selection based on age and clinical characteristics. The ENIGMA-Anxiety Working Group initiated a global mega-analysis to determine whether differences in subcortical volumes can be detected in adults and adolescents with SAD relative to healthy controls. Volumetric data from 37 international samples with 1115 SAD patients and 2775 controls were obtained from ENIGMA-standardized protocols for image segmentation and quality assurance. Linear mixed-effects analyses were adjusted for comparisons across seven subcortical regions in each hemisphere using family-wise error (FWE)-correction. Mixed-effects d effect sizes were calculated. In the full sample, SAD patients showed smaller bilateral putamen volume than controls (left: d = -0.077, pFWE = 0.037; right: d = -0.104, pFWE = 0.001), and a significant interaction between SAD and age was found for the left putamen (r = -0.034, pFWE = 0.045). Smaller bilateral putamen volumes (left: d = -0.141, pFWE < 0.001; right: d = -0.158, pFWE < 0.001) and larger bilateral pallidum volumes (left: d = 0.129, pFWE = 0.006; right: d = 0.099, pFWE = 0.046) were detected in adult SAD patients relative to controls, but no volumetric differences were apparent in adolescent SAD patients relative to controls. Comorbid anxiety disorders and age of SAD onset were additional determinants of SAD-related volumetric differences in subcortical regions. To conclude, subtle volumetric alterations in subcortical regions in SAD were detected. Heterogeneity in age and clinical characteristics may partly explain inconsistencies in previous findings. The association between alterations in subcortical volumes and SAD illness progression deserves further investigation, especially from adolescence into adulthood.
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Affiliation(s)
- Nynke A Groenewold
- Neuroscience Institute, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa.
- South African Medical Research Council (SA-MRC) Unit on Child and Adolescent Health, Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town, Cape Town, South Africa.
| | - Janna Marie Bas-Hoogendam
- Department of Psychiatry, Leiden University Medical Center, Leiden, Netherlands
- Department of Developmental and Educational Psychology, Institute of Psychology, Leiden University, Leiden, Netherlands
- Leiden Institute for Brain and Cognition, Leiden, Netherlands
| | - Alyssa R Amod
- Neuroscience Institute, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
| | - Max A Laansma
- Department of Anatomy & Neurosciences, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Laura S Van Velzen
- Orygen & Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Moji Aghajani
- Leiden University, Institute of Education & Child Studies, Section Forensic Family & Youth Care, Leiden, Netherlands
| | - Kevin Hilbert
- Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Hyuntaek Oh
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA
| | - Ramiro Salas
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA
- Michael E DeBakey VA Medical Center, Center for Translational Research on Inflammatory Diseases, Houston, TX, USA
| | - Andrea P Jackowski
- LiNC, Department of Psychiatry, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Pedro M Pan
- LiNC, Department of Psychiatry, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Giovanni A Salum
- Section on Negative Affect and Social Processes, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - James R Blair
- Child and Adolescent Mental Health Centre, Mental Health Services, Capital Region of Denmark, Copenhagen, Denmark
| | - Karina S Blair
- Center for Neurobehavioral Research, Boys Town National Research Hospital, Boys Town, NE, USA
| | - Joy Hirsch
- Departments of Psychiatry & Neurobiology, Yale School of Medicine, New Haven, CT, USA
| | - Spiro P Pantazatos
- Department of Psychiatry, Columbia University Medical Center, New York, NY, USA
- New York State Psychiatric Institute, New York, NY, USA
| | - Franklin R Schneier
- Department of Psychiatry, Columbia University Medical Center, New York, NY, USA
- New York State Psychiatric Institute, New York, NY, USA
| | - Ardesheer Talati
- Department of Psychiatry, Columbia University Medical Center, New York, NY, USA
- New York State Psychiatric Institute, New York, NY, USA
| | - Karin Roelofs
- Donders Institute for Brain, Cognition and Behavior, Radboud University Behavioral Science Institute, Radboud University, Nijmegen, Netherlands
| | - Inge Volman
- Wellcome Centre for Integrative Neuroimaging Neuroimaging (WIN), Centre for Functional MRI of the Brain (FMRIB), Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK
| | - Laura Blanco-Hinojo
- MRI Research Unit, Department of Radiology, Hospital del Mar, Barcelona, Spain
- Centro Investigación Biomédica en Red de Salud Mental, CIBERSAM G21, Barcelona, Spain
| | - Narcís Cardoner
- Department of Mental Health, University Hospital Parc Taulí-I3PT, Barcelona, Spain, Barcelona, Spain
- 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
| | - Jesus Pujol
- MRI Research Unit, Department of Radiology, Hospital del Mar, Barcelona, Spain
- Centro Investigación Biomédica en Red de Salud Mental, CIBERSAM G21, Barcelona, Spain
| | - Katja Beesdo-Baum
- Behavioral Epidemiology, Institute of Clinical Psycholog and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - Christopher R K Ching
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA, USA
| | - Sophia I Thomopoulos
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA, USA
| | - Andreas Jansen
- Core-Facility Brainimaging, Faculty of Medicine, University of Marburg, Marburg, Germany
| | - Tilo Kircher
- Department of Psychiatry, University of Marburg, Marburg, Germany
| | - Axel Krug
- Department of Psychiatry, University of Marburg, Marburg, Germany
- Department of Psychiatry, University Hospital of Bonn, Bonn, Germany
| | - Igor Nenadić
- Department of Psychiatry, University of Marburg, Marburg, Germany
| | - Frederike Stein
- Department of Psychiatry, University of Marburg, Marburg, Germany
| | - Udo Dannlowski
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Dominik Grotegerd
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Hannah Lemke
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Susanne Meinert
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
- Institute for Translational Neuroscience, University of Münster, Münster, Germany
| | - Alexandra Winter
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Michael Erb
- Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
| | - Benjamin Kreifelts
- Department of Psychiatry and Psychotherapy, Tübingen Center for Mental Health (TüCMH), University of Tübingen, Tübingen, Germany
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, Department of Radiology, West China Hospital of Sichuan University, Chengdu, China
- Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China
| | - Su Lui
- Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, Department of Radiology, West China Hospital of Sichuan University, Chengdu, China
- Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China
| | - Fei Zhu
- Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, Department of Radiology, West China Hospital of Sichuan University, Chengdu, China
- Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, China
| | - Benson Mwangi
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Jair C Soares
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Mon-Ju Wu
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Ali Bayram
- Department of Neuroscience, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Mesut Canli
- Department of Physiology, Istanbul University, Istanbul, Turkey
| | - Raşit Tükel
- Department of Psychiatry, Istanbul University, Istanbul, Turkey
| | - P Michiel Westenberg
- Department of Developmental and Educational Psychology, Institute of Psychology, Leiden University, Leiden, Netherlands
- Leiden Institute for Brain and Cognition, Leiden, Netherlands
| | - Alexandre Heeren
- Psychological Science Research Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Henk R Cremers
- Department of Clinical Psychology, University of Amsterdam, Amsterdam, Netherlands
| | - David Hofmann
- Institute of Medical Psychology and Systems Neuroscience, University of Münster, Münster, Germany
| | - Thomas Straube
- Institute of Medical Psychology and Systems Neuroscience, University of Münster, Münster, Germany
| | | | - Christine Lochner
- SA-MRC Unit on Risk and Resilience in Mental Disorders, Stellenbosch University, Stellenbosch, South Africa
| | - Jutta Peterburs
- Institute of Systems Medicine and Faculty of Human Medicine, MSH Medical School Hamburg, Hamburg, Germany
| | - Marie-José Van Tol
- Cognitive Neuroscience Center, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Raquel E Gur
- Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Bart Larsen
- Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Courtney A Filippi
- Emotion and Development Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Andrea L Gold
- Department of Psychiatry and Human Behavior, Brown University Warren Alpert Medical School, Providence, RI, USA
| | - Anita Harrewijn
- Emotion and Development Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
- Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, Rotterdam, Netherlands
| | - André Zugman
- Emotion and Development Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Robin Bülow
- Institute for Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Greifswald, Germany
| | - Hans J Grabe
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
- German Center for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, Germany
| | - Henry Völzke
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Katharina Wittfeld
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Greifswald, Germany
- German Center for Neurodegenerative Diseases (DZNE), Site Rostock/Greifswald, Greifswald, Germany
| | - Joscha Böhnlein
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Katharina Dohm
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Harald Kugel
- University Clinic for Radiology, University of Münster, Münster, Germany
| | - Elisabeth Schrammen
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Peter Zwanzger
- KBO-Inn-Salzach-Klinikum, Munich, Germany
- Department of Psychiatry and Psychotherapy, Ludwig Maximilians University of Munich, Munich, Germany
| | - Elisabeth J Leehr
- Institute for Translational Psychiatry, University of Münster, Münster, Germany
| | - Lisa Sindermann
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Tali M Ball
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Gregory A Fonzo
- Department of Psychiatry and Behavioral Sciences, The University of Texas at Austin Dell Medical School, Austin, TX, USA
| | | | - Alan Simmons
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, USA
| | - Murray B Stein
- Departments of Psychiatry & School of Public Health, University of California, San Diego, La Jolla, CA, USA
| | - Heide Klumpp
- Departments of Psychology & Psychiatry, University of Illinois at Chicago, Chicago, IL, USA
| | - K Luan Phan
- Department of Psychiatry & Behavioral Health, the Ohio State University, Columbus, OH, USA
| | - Tomas Furmark
- Department of Psychology, Uppsala University, Uppsala, Sweden
| | | | | | - Suzanne N Avery
- Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | | | | | - Brandee Feola
- Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | | | - Chad M Sylvester
- Department of Psychiatry, Washington University, St. Louis, MO, USA
| | - Ulrike Lueken
- Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Dick J Veltman
- Department of Psychiatry, Amsterdam UMC location VUMC, Amsterdam, Netherlands
| | - Anderson M Winkler
- Emotion and Development Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Neda Jahanshad
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA, USA
| | - Daniel S Pine
- Emotion and Development Branch, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Paul M Thompson
- Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Marina del Rey, CA, USA
| | - Dan J Stein
- Neuroscience Institute, Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
- SA-MRC Unit on Risk & Resilience in Mental Disorders, University of Cape Town, Cape Town, South Africa
| | - Nic J A Van der Wee
- Department of Psychiatry, Leiden University Medical Center, Leiden, Netherlands
- Leiden Institute for Brain and Cognition, Leiden, Netherlands
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Ostovar R, Schroeter F, Erb M, Kuehnel RU, Hartrumpf M, Albes JM. Endocarditis: Who Is Particularly at Risk and Why? Ten Years Analysis of Risk Factors for In-hospital Mortality in Infective Endocarditis. Thorac Cardiovasc Surg 2023; 71:12-21. [PMID: 35785809 DOI: 10.1055/s-0042-1748950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND Endocarditis is continuously increasing. Evidence exist that the prognosis is adversely affected by the extent of the disease. We looked at risk factors influencing in-hospital mortality (HM). PATIENTS AND METHODS Between 2010 and 2019, 484 patients, 338 males (69.8%) with mean age of 66.1 years were operated on because of proven endocarditis. In a retrospective study, a risk factor analysis was performed. RESULTS Overall HM was 30.17%. Significant influencing factors (odds ratios [ORs] or p-value) for HM were: age (p = 0.004), logistic EuroSCORE (p< 0.001), gender (OR = 1.64), dialysis (OR = 2.64), hepatic insufficiency (OR = 2.17), reoperation (OR = 1.77), previously implanted valve (OR = 1.97), periannular abscess (OR = 9.26), sepsis on admission (OR = 12.88), and number of involved valves (OR = 1.96). Development of a sepsis and HM was significantly lower if Streptococcus mitis was the main pathogen in contrast to other bacteria (p< 0.001). Staphylococcus aureus was significantly more often found in patients with a previously implanted prosthesis (p = 0.03) and in recurrent endocarditis (p = 0.02), while it significantly more often showed peripheral septic emboli than the other pathogens (p< 0.001). CONCLUSION Endocarditis remains life-threatening. Severe comorbidities adversely affected early outcome, particularly, in presence of periannular abscesses. Patients with suspected endocarditis should be admitted to a specialized heart center as early as possible. Streptococcus mitis appears to be less virulent than S. aureus. Further studies are required to verify these findings.
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Affiliation(s)
- Roya Ostovar
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
| | - Filip Schroeter
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
| | - Michael Erb
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
| | - Ralf-Uwe Kuehnel
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
| | - Martin Hartrumpf
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
| | - Johannes M Albes
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Brandenburg, Germany
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Gumbie M, Costa M, Erb M, Dissanayake G. Innovative technologies for reverse total shoulder arthroplasty in Australia: Market access challenges and implications for patients, decision-makers, and manufacturers. J Mark Access Health Policy 2022; 11:2154420. [PMID: 36506841 PMCID: PMC9731581 DOI: 10.1080/20016689.2022.2154420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
PURPOSE The success of reverse total shoulder arthroplasty (RTSA) has expanded its use for a broader range of shoulder indications worldwide. Evidence regarding the relative efficacy and long-term safety of medical technologies used in RTSA is subjected to rigorous assessment. Nonetheless, substantial challenges impede market access for innovative shoulder implant technologies for RTSA in Australia, resulting in delayed patient access. APPROACH This paper addresses the key challenges associated with generating evidence for the health technology assessments of innovative medical technologies for RTSA that are required for access to the Australian market. The transition to value-based care requires establishing a benchmarking reference that incorporates patient-reported outcome measures (PROMs) and combines revision outcomes with additional clinical outcomes to increase patient cohort sizes. Establishing the benchmark would require agreement on the outcome measures to be collected for each indication, and investment in reporting patient-reported outcomes for RTSA to the national orthopaedic registry. IMPLICATIONS FOR PRACTICE The need for increased flexibility in developing evidence for health technology assessment of RTSA medical technologies is required. Optimised approaches for benchmarking RTSA require extensive stakeholder discussions, including the agreement on evidence requirements and follow-up periods, selection of clinical outcomes, as well as pre-operative and post-operative PROMs as a value assessment.
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Affiliation(s)
- Mutsa Gumbie
- Macquarie University Centre for the Health Economy, Sydney, NSW, Australia
- Johnson & Johnson MedTech, North Ryde, NSW, Australia
| | | | | | - Gnanadarsha Dissanayake
- New South Wales Ministry of Health, St Leonards, NSW, Australia
- School of Mathematics and Statistics, University of Sydney, Sydney, NSW, Australia
- Statistical Society of Australia, Belconnen, NSW, Australia
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7
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Ostovar R, Laux M, Kuehnel RU, Schroeter F, Braun C, Erb M, Albes JM. Immunosuppressive Agents and Thoracic Aortic Aneurysm: Real Correlation or Mere Coincidence? Thorac Cardiovasc Surg 2022; 70:637-644. [PMID: 33461219 DOI: 10.1055/s-0040-1721675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Atherosclerosis, hypertension, age, and fibrillopathies are well-known risk factors for the development of aortic aneurysm. We discovered that a significant proportion of our patients were previously on chemotherapy treatment or long-term treatment with cytostatic agents or immunosuppressive drugs. Thus, we examined this phenomenon. METHODS A total of 224 patients with thoracic aorta aneurysm were retrospectively analyzed after aortic surgery from 2006 to 2016. Seventy-three patients received aortic wrapping and 151 patients underwent aortic replacement of which 89 had a valve-carrying conduit and 62 a supracoronary ascending replacement. Aortic morphology was assessed by means of compute tomography scan before and after surgery. Demographic data, risk profile, and postoperative complications were collected. Short- and long-term survival analysis was performed. Statistical analysis was performed with SPSS 19.0. RESULTS Eighty-eight of 224 patients undergoing aortic surgery because of aortic aneurysm had previously or currently been treated with immunosuppressive agents. Dilatation of the ascending aorta was more pronounced in patients without such therapy. Demographic profile, intraoperative, as well as short- and long-term postoperative results did not differ significantly between both groups. CONCLUSION The potential effect of immunosuppressant and cytostatic therapies on the development of an aortic aneurysm needs further study. Because of the astoundingly high proportion of these patients being found in an unselected aortic aneurysm cohort with immunosuppressive therapy in the past should be monitored for potential development of aortic aneurysm. If it occurs and requires treatment these patients can fortunately be operated upon with the same short- and long-term outcome than patients without such previous therapy.
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Affiliation(s)
- Roya Ostovar
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Magdalena Laux
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Ralf-Uwe Kuehnel
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Filip Schroeter
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Christian Braun
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Michael Erb
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Johannes M Albes
- Department of Cardiovascular Surgery, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
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Alzaid H, Ethofer T, Kardatzki B, Erb M, Scheffler K, Berg D, Maetzler W, Hobert MA. Gait decline while dual-tasking is an early sign of white matter deterioration in middle-aged and older adults. Front Aging Neurosci 2022; 14:934241. [PMID: 36247983 PMCID: PMC9558904 DOI: 10.3389/fnagi.2022.934241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 08/26/2022] [Indexed: 11/13/2022] Open
Abstract
Loss of white matter integrity (WMI) is associated with gait deficits in middle-aged and older adults. However, these deficits are often only apparent under cognitively demanding situations, such as walking and simultaneously performing a secondary cognitive task. Moreover, evidence suggests that declining executive functions (EF) are linked to gait decline, and their co-occurrence may point to a common underlying pathology, i.e., degeneration of shared brain regions. In this study, we applied diffusion tensor imaging (DTI) and a standardized gait assessment under single- and dual-tasking (DT) conditions (walking and subtracting) in 74 middle-aged and older adults without any significant gait or cognitive impairments to detect subtle WM alterations associated with gait decline under DT conditions. Additionally, the Trail Making Test (TMT) was used to assess EF, classify participants into three groups based on their performance, and examine a possible interaction between gait, EF, and WMI. Gait speed and subtracting speed while dual-tasking correlated significantly with the fractional anisotropy (FA) in the bilateral anterior corona radiata (highest r = 0.51/p < 0.0125 FWE-corrected). Dual-task costs (DTC) of gait speed correlated significantly with FA in widespread pathways, including the corpus callosum, bilateral anterior and superior corona radiata, as well as the left superior longitudinal fasciculus (highest r = −0.47/p < 0.0125 FWE-corrected). EF performance was associated with FA in the left anterior corona radiata (p < 0.05); however, EF did not significantly mediate the effects of WMI on DTC of gait speed. There were no significant correlations between TMT and DTC of gait and subtracting speed, respectively. Our findings indicate that gait decline under DT conditions is associated with widespread WM deterioration even in middle-aged and older adults without any significant gait or cognitive impairments. However, this relationship was not mediated by EF.
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Affiliation(s)
- Haidar Alzaid
- Department of Biomedical Magnetic Resonance, Tübingen University Hospital, Tübingen, Germany
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
- *Correspondence: Haidar Alzaid,
| | - Thomas Ethofer
- Department of Biomedical Magnetic Resonance, Tübingen University Hospital, Tübingen, Germany
- Department of Psychiatry and Psychotherapy, Tübingen University Hospital, Tübingen, Germany
| | - Bernd Kardatzki
- Department of Biomedical Magnetic Resonance, Tübingen University Hospital, Tübingen, Germany
| | - Michael Erb
- Department of Biomedical Magnetic Resonance, Tübingen University Hospital, Tübingen, Germany
| | - Klaus Scheffler
- Department of Biomedical Magnetic Resonance, Tübingen University Hospital, Tübingen, Germany
| | - Daniela Berg
- Department of Neurology, Kiel University Hospital, Kiel, Germany
| | - Walter Maetzler
- Department of Neurology, Kiel University Hospital, Kiel, Germany
| | - Markus A. Hobert
- Department of Neurology, Kiel University Hospital, Kiel, Germany
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9
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Zuberer A, Schwarz L, Kreifelts B, Wildgruber D, Erb M, Fallgatter A, Scheffler K, Ethofer T. Neural Basis of Impaired Emotion Recognition in Adult Attention-Deficit/Hyperactivity Disorder. Biol Psychiatry Cogn Neurosci Neuroimaging 2022; 7:680-687. [PMID: 33551283 DOI: 10.1016/j.bpsc.2020.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND Deficits in emotion recognition have been repeatedly documented in patients diagnosed with attention-deficit/hyperactivity disorder (ADHD), but their neural basis is unknown so far. METHODS In the current study, adult patients with ADHD (n = 44) and healthy control subjects (n = 43) underwent functional magnetic resonance imaging during explicit emotion recognition of stimuli expressing affective information in face, voice, or face-voice combinations. The employed experimental paradigm allowed us to delineate areas for processing audiovisual information based on their functional activation profile, including the bilateral posterior superior temporal gyrus/middle temporal gyrus, amygdala, medial prefrontal cortex, and precuneus, as well as the right posterior thalamus. RESULTS As expected, unbiased hit rates for correct classification of the expressed emotions were lower in patients with ADHD than in healthy control subjects irrespective of the presented sensory modality. This deficit at a behavioral level was accompanied by lower activation in patients with ADHD versus healthy control subjects in the cortex adjacent to the right superior temporal gyrus/middle temporal gyrus and the right posterior thalamus, which represent key areas for processing socially relevant signals and their integration across modalities. A cortical region adjacent to the right posterior superior temporal gyrus was the only brain region that showed a significant correlation between brain activation and emotion identification performance. CONCLUSIONS Altogether, these results provide the first evidence for a potential neural substrate of the observed impairments in emotion recognition in adults with ADHD.
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Affiliation(s)
- Agnieszka Zuberer
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany; Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany.
| | - Lena Schwarz
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Benjamin Kreifelts
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Dirk Wildgruber
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Michael Erb
- Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
| | - Andreas Fallgatter
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Klaus Scheffler
- Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany; Max Planck Institute for Biological Cybernetics, Tübingen, Germany
| | - Thomas Ethofer
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany; Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
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10
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Blum C, Baur D, Achauer LC, Berens P, Biergans S, Erb M, Hömberg V, Huang Z, Kohlbacher O, Liepert J, Lindig T, Lohmann G, Macke JH, Römhild J, Rösinger-Hein C, Zrenner B, Ziemann U. Personalized neurorehabilitative precision medicine: from data to therapies (MWKNeuroReha) - a multi-centre prospective observational clinical trial to predict long-term outcome of patients with acute motor stroke. BMC Neurol 2022; 22:238. [PMID: 35773640 PMCID: PMC9245298 DOI: 10.1186/s12883-022-02759-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/17/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Stroke is one of the most frequent diseases, and half of the stroke survivors are left with permanent impairment. Prediction of individual outcome is still difficult. Many but not all patients with stroke improve by approximately 1.7 times the initial impairment, that has been termed proportional recovery rule. The present study aims at identifying factors predicting motor outcome after stroke more accurately than before, and observe associations of rehabilitation treatment with outcome. METHODS The study is designed as a multi-centre prospective clinical observational trial. An extensive primary data set of clinical, neuroimaging, electrophysiological, and laboratory data will be collected within 96 h of stroke onset from patients with relevant upper extremity deficit, as indexed by a Fugl-Meyer-Upper Extremity (FM-UE) score ≤ 50. At least 200 patients will be recruited. Clinical scores will include the FM-UE score (range 0-66, unimpaired function is indicated by a score of 66), Action Research Arm Test, modified Rankin Scale, Barthel Index and Stroke-Specific Quality of Life Scale. Follow-up clinical scores and applied types and amount of rehabilitation treatment will be documented in the rehabilitation hospitals. Final follow-up clinical scoring will be performed 90 days after the stroke event. The primary endpoint is the change in FM-UE defined as 90 days FM-UE minus initial FM-UE, divided by initial FM-UE impairment. Changes in the other clinical scores serve as secondary endpoints. Machine learning methods will be employed to analyze the data and predict primary and secondary endpoints based on the primary data set and the different rehabilitation treatments. DISCUSSION If successful, outcome and relation to rehabilitation treatment in patients with acute motor stroke will be predictable more reliably than currently possible, leading to personalized neurorehabilitation. An important regulatory aspect of this trial is the first-time implementation of systematic patient data transfer between emergency and rehabilitation hospitals, which are divided institutions in Germany. TRIAL REGISTRATION This study was registered at ClinicalTrials.gov ( NCT04688970 ) on 30 December 2020.
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Affiliation(s)
- Corinna Blum
- Department for Neurology & Stroke, University Hospital of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany.,Hertie Institute for Clinical Brain Research, Ottfried-Müller-Straße 25, 72076, Tübingen, Germany
| | - David Baur
- Department for Neurology & Stroke, University Hospital of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany.,Hertie Institute for Clinical Brain Research, Ottfried-Müller-Straße 25, 72076, Tübingen, Germany
| | - Lars-Christian Achauer
- medical Data Integration Centre (meDIC), University Hospital of Tübingen, Schaffhausenstr. 77, 72072, Tübingen, Germany
| | - Philipp Berens
- University Hospital of Tübingen, Institute for Ophthalmic Research, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Germany.,Cluster of Excellence Machine Learning, University of Tübingen, Maria-von-Linden-Str. 6, 72076, Tübingen, Germany
| | - Stephanie Biergans
- medical Data Integration Centre (meDIC), University Hospital of Tübingen, Schaffhausenstr. 77, 72072, Tübingen, Germany
| | - Michael Erb
- Department for Biomedical Magnetic Resonance, University Hospital of Tübingen, Ottfried-Müller-Str. 51, 72076, Tübingen, Germany.,Max Planck Institute for Biological Cybernetics, Max-Planck-Ring 8-14, 72076, Tübingen, Germany
| | - Volker Hömberg
- SRH Gesundheitszentrum Bad Wimpfen GmbH, Bei der alten Saline 2, 74206, Bad Wimpfen, Germany
| | - Ziwei Huang
- University Hospital of Tübingen, Institute for Ophthalmic Research, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Germany
| | - Oliver Kohlbacher
- medical Data Integration Centre (meDIC), University Hospital of Tübingen, Schaffhausenstr. 77, 72072, Tübingen, Germany.,University hospital of Tübingen, Institute for translational Bioinformation (TBI), Schaffhausenstr. 77, 72072, Tübingen, Germany.,University of Tübingen, Interfaculty Institute for Biomedical Informatics (IBMI), Sand 14, 72076, Tübingen, Germany.,Department of Computer Science, Applied Bioinformatics (ABI), University of Tübingen, Sand 14, 72076, Tübingen, Germany
| | - Joachim Liepert
- Schmieder Clinic Allensbach, Zum Tafelholz 8, 78476, Allensbach, Germany
| | - Tobias Lindig
- Department for Diagnostic and Interventional Neuroradiology, University Hospital of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany
| | - Gabriele Lohmann
- Department for High-field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max-Planck-Ring 11, 72076, Tübingen, Germany
| | - Jakob H Macke
- Cluster of Excellence Machine Learning, University of Tübingen, Maria-von-Linden-Str. 6, 72076, Tübingen, Germany
| | - Jörg Römhild
- medical Data Integration Centre (meDIC), University Hospital of Tübingen, Schaffhausenstr. 77, 72072, Tübingen, Germany
| | - Christine Rösinger-Hein
- Hertie Institute for Clinical Brain Research, Ottfried-Müller-Straße 25, 72076, Tübingen, Germany
| | - Brigitte Zrenner
- Department for Neurology & Stroke, University Hospital of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany.,Hertie Institute for Clinical Brain Research, Ottfried-Müller-Straße 25, 72076, Tübingen, Germany
| | - Ulf Ziemann
- Department for Neurology & Stroke, University Hospital of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany. .,Hertie Institute for Clinical Brain Research, Ottfried-Müller-Straße 25, 72076, Tübingen, Germany.
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11
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Ostovar R, Schroeter F, Erb M, Rashvand J, Hartrumpf M, Chopsonidou S, Laux M, Albes J. Liver Cirrhosis in Cardiac Surgery: Dangerous but Elusive. Thorac Cardiovasc Surg 2022. [DOI: 10.1055/s-0042-1742800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- R. Ostovar
- Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - F. Schroeter
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - M. Erb
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - J. Rashvand
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - M. Hartrumpf
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - S. Chopsonidou
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - M. Laux
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - J. Albes
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
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12
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Ostovar R, Schroeter F, Erb M, Kuehnel RU, Gesine D, Laux M, Oliver R, Chopsonidou S, Albes J. Epidemiological Identification of Pathogens and Their Role in Endocarditis Progression. Thorac Cardiovasc Surg 2022. [DOI: 10.1055/s-0042-1742867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- R. Ostovar
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - F. Schroeter
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - M. Erb
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - R. U. Kuehnel
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - D. Gesine
- Department of Internal Medicine and Cardiology, St. Josefs-Krankenhaus Potsdam-Sanssouci, Potsdam, Deutschland
| | - M. Laux
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
| | - R. Oliver
- Department of Internal Medicine and Cardiology, University Hospital Brandenburg an der Havel, Brandenburg Medical School Theodor Fontane, Brandenburg, Deutschland
| | - S. Chopsonidou
- Department of Cardiovascular Surgery, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Deutschland
| | - J. Albes
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital Medical School Brandenburg, Bernau bei Berlin, Deutschland
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13
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Binder T, Hobert MA, Pfrommer T, Leks E, Granert O, Weigl B, Ethofer T, Erb M, Wilke M, Maetzler W, Berg D. Increased functional connectivity in a population at risk of developing Parkinson's disease. Parkinsonism Relat Disord 2021; 92:1-6. [PMID: 34649107 DOI: 10.1016/j.parkreldis.2021.09.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND While the concept of prodromal Parkinson's disease (PD) is well established, reliable markers for the diagnosis of this disease stage are still lacking. We investigated the functional connectivity of the putamina in a resting-state functional MRI analysis in persons with at least two prodromal factors for PD, which is considered a high risk for PD (HRPD) group, in comparison to PD patients and controls. METHODS We included 16 PD patients, 20 healthy controls and 20 HRPD subjects. Resting state echo planar images and anatomical T1-weighted images were acquired with a Siemens Prisma 3 T scanner. The computation of correlation maps of the left and the right putamen to the rest of the brain was done in a voxel-wise approach using the REST toolbox. Finally, group differences in the correlation maps were compared on voxel-level and summarized in cluster z-statistics. RESULTS Compared to both PD patients and healthy controls, the HRPD group showed higher functional connectivity of both putamina to brain regions involved in execution of motion and coordination (cerebellum, vermis, pre- and postcentral gyrus, supplementary motor area) as well as the planning of movement (precuneus, cuneus, superior medial frontal lobe). CONCLUSIONS Higher functional connectivity of the putamina of HRPD subjects to other brain regions involved in motor execution and planning may indicate a compensatory mechanism. Follow-up evaluation and independent longitudinal studies should test whether our results reflect a dynamic process associated with a prodromal PD state.
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Affiliation(s)
- Tobias Binder
- Center for Neurology and Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany; Department of Neurology, Julius-Maximilians-University, Würzburg, Germany.
| | - Markus A Hobert
- Center for Neurology and Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany; Department of Neurology, Christian-Albrechts-University, Kiel, Germany
| | - Teresa Pfrommer
- Center for Neurology and Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany
| | - Edyta Leks
- High-Field Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics, Tübingen, Germany; Department of Biomedical Magnetic Resonance, University Hospital Tübingen, Germany
| | - Oliver Granert
- Department of Neurology, Christian-Albrechts-University, Kiel, Germany
| | - Benedikt Weigl
- Center for Neurology and Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany
| | - Thomas Ethofer
- Department of Biomedical Magnetic Resonance, University Hospital Tübingen, Germany; Department of General Psychiatry, University of Tübingen, Germany
| | - Michael Erb
- Department of Biomedical Magnetic Resonance, University Hospital Tübingen, Germany
| | - Marco Wilke
- Department of Pediatric Neurology and Developmental Medicine, Children's Hospital, University of Tübingen, Germany; Experimental Pediatric Neuroimaging Group, Pediatric Neurology & Department of Neuroradiology, University Hospital Tübingen, Germany
| | - Walter Maetzler
- Center for Neurology and Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany; Department of Neurology, Christian-Albrechts-University, Kiel, Germany
| | - Daniela Berg
- Center for Neurology and Hertie-Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, Tübingen, Germany; Department of Neurology, Christian-Albrechts-University, Kiel, Germany
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14
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Ostovar R, Erb M, Schroeter F, Zytowski M, Kuehnel RU, Hartrumpf M, Albes JM. MitraClip: a word of caution regarding an all too liberal indication and delayed referral to surgery in case of failure. Eur J Cardiothorac Surg 2021; 59:887-893. [PMID: 33367523 DOI: 10.1093/ejcts/ezaa444] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/06/2020] [Accepted: 10/18/2020] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVES Although indications for the MitraClip are becoming increasingly liberal, the number of patients requiring valve surgery after an insufficient outcome of the procedure is growing. Referral to surgery is, however, frequently delayed. During this time, the patients often deteriorate. We retrospectively analysed patients before MitraClip implantation and after mitral valve surgery. METHODS A total of 49 patients who received a mitral valve replacement (average 8 ± 12 months after MitraClip implantation) were assessed. Of these, 53% had 2-4 clips inserted. The mean age was 73 years, and the mean log EuroSCORE was 20.79 ± 14.42%. Echocardiographic data obtained prior to MitraClip implantation and preoperatively, 10 days and 6 and 12 months after cardiac surgery were reviewed. Survival analysis, risk profile and postoperative complications were analysed. RESULTS The 30-day and 1-year mortality was 26.5% and 59.2%, respectively. Prior to MitraClip implantation, 42.8% of patients had mild tricuspid insufficiency and 6.1% had moderate tricuspid insufficiency. Prior to surgery, 26.5% showed mild, 32.7% moderate and 38.8% severe tricuspid insufficiency (P < 0.001). Furthermore, right heart function assessed by tricuspid annular plane systolic excursion deteriorated significantly after Implantation of the MitraClip (P < 0.001). In patients with a MitraClip, the pulmonary artery pressure was significantly higher at the time of mitral replacement than it was before the MitraClip was implanted (P < 0.001). CONCLUSIONS A subgroup of patients does not benefit from a MitraClip and shows progressive deterioration in cardiac function, making valve replacement under difficult circumstances inevitable. The earlier these patients are operated on, the better it is. It can be assumed that some patients would be better off with primary surgery, especially if mitral reconstruction is then still feasible. Therefore, the indications for MitraClip implantation should be carefully considered and caution should be exercised during monitoring.
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Affiliation(s)
- Roya Ostovar
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau, Germany
| | - Michael Erb
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau, Germany
| | - Filip Schroeter
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau, Germany
| | - Michael Zytowski
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau, Germany
| | - Ralf-Uwe Kuehnel
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau, Germany
| | - Martin Hartrumpf
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau, Germany
| | - Johannes Maximilian Albes
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau, Germany
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15
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Laggner M, Gugerell A, Copic D, Jeitler M, Springer M, Peterbauer A, Kremslehner C, Filzwieser-Narzt M, Gruber F, Madlener S, Erb M, Widder J, Lechner W, Georg D, Mildner M, Ankersmit HJ. Comparing the efficacy of γ- and electron-irradiation of PBMCs to promote secretion of paracrine, regenerative factors. Mol Ther Methods Clin Dev 2021; 21:14-27. [PMID: 33768126 PMCID: PMC7960502 DOI: 10.1016/j.omtm.2021.02.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 02/19/2021] [Indexed: 11/28/2022]
Abstract
Cell-free secretomes represent a promising new therapeutic avenue in regenerative medicine, and γ-irradiation of human peripheral blood mononuclear cells (PBMCs) has been shown to promote the release of paracrine factors with high regenerative potential. Recently, the use of alternative irradiation sources, such as artificially generated β- or electron-irradiation, is encouraged by authorities. Since the effect of the less hazardous electron-radiation on the production and functions of paracrine factors has not been tested so far, we compared the effects of γ- and electron-irradiation on PBMCs and determined the efficacy of both radiation sources for producing regenerative secretomes. Exposure to 60 Gy γ-rays from a radioactive nuclide and 60 Gy electron-irradiation provided by a linear accelerator comparably induced cell death and DNA damage. The transcriptional landscapes of PBMCs exposed to either radiation source shared a high degree of similarity. Secretion patterns of proteins, lipids, and extracellular vesicles displayed similar profiles after γ- and electron-irradiation. Lastly, we detected comparable biological activities in functional assays reflecting the regenerative potential of the secretomes. Taken together, we were able to demonstrate that electron-irradiation is an effective, alternative radiation source for producing therapeutic, cell-free secretomes. Our study paves the way for future clinical trials employing secretomes generated with electron-irradiation in tissue-regenerative medicine.
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Affiliation(s)
- Maria Laggner
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria.,Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, 1090 Vienna, Austria
| | - Alfred Gugerell
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria.,Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, 1090 Vienna, Austria
| | - Dragan Copic
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria.,Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, 1090 Vienna, Austria
| | - Markus Jeitler
- Core Facility Genomics, Medical University of Vienna, 1090 Vienna, Austria
| | - Michael Springer
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria.,Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, 1090 Vienna, Austria
| | - Anja Peterbauer
- Austrian Red Cross Blood Transfusion Service of Upper Austria, 4020 Linz, Austria
| | - Christopher Kremslehner
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria.,Christian Doppler Laboratory for Biotechnology of Skin Aging, 1090 Vienna, Austria
| | - Manuel Filzwieser-Narzt
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria.,Christian Doppler Laboratory for Biotechnology of Skin Aging, 1090 Vienna, Austria
| | - Florian Gruber
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria.,Christian Doppler Laboratory for Biotechnology of Skin Aging, 1090 Vienna, Austria
| | - Sibylle Madlener
- Molecular Neuro-Oncology, Department of Pediatrics and Adolescent Medicine, and Institute of Neurology, Medical University of Vienna, 1090 Vienna, Austria.,Comprehensive Cancer Center of the Medical University of Vienna, 1090 Vienna, Austria
| | - Michael Erb
- SYNLAB Analytics and Services Switzerland AG, 4127 Birsfelden, Switzerland
| | - Joachim Widder
- Department of Radiation Oncology, Medical University of Vienna, 1090 Vienna, Austria
| | - Wolfgang Lechner
- Department of Radiation Oncology, Medical University of Vienna, 1090 Vienna, Austria
| | - Dietmar Georg
- Department of Radiation Oncology, Medical University of Vienna, 1090 Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Hendrik Jan Ankersmit
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria.,Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, 1090 Vienna, Austria
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16
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Ioannou S, Braun C, Claus T, Hartrumpf M, Erb M, Kühnel RU, Loladze G, Ali V, Schröter F, Albes J. CALA: Cumulative Volume of Calcium Lesions of the Ascending Aorta and Aortic Arch Correlate with Early Mortality, Critical Illness Polyneuropathy/Myopathy, and Delirium but Not with Stroke. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | | | | | | | - M. Erb
- Bernau bei Berlin, Deutschland
| | | | | | - V. Ali
- Bernau bei Berlin, Deutschland
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17
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Ostovar R, Schröter F, Laux ML, Kühnel RU, Hartrumpf M, Erb M, Claus T, Dörr G, Albes J. First and Already Sobering Results of the Brandenburg Endocarditis Registry (BER). Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | | | | | | | | | - M. Erb
- Bernau bei Berlin, Germany
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18
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Ostovar R, Schröter F, Kühnel RU, Rashvand J, Erb M, Hartrumpf M, Laux ML, Albes J. Endocarditis: Who Is particularly at Risk and Why? Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | | | | | | | - M. Erb
- Bernau bei Berlin, Deutschland
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19
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Zhaoping L, Grassi P, Zou J, Erb M, Scheffler K, Bartels A. Neural representation of illusory reversed depth in anti-correlated random-dot stereograms across visual cortical areas in central and peripheral visual fields: An fMRI study. J Vis 2020. [DOI: 10.1167/jov.20.11.1522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Li Zhaoping
- University of Tuebingen,
- Max Planck Institute for Biological Cybernetics
| | | | - Jinyou Zou
- Max Planck Institute for Biological Cybernetics
| | | | - Klaus Scheffler
- University of Tuebingen,
- Max Planck Institute for Biological Cybernetics
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20
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Krylova M, Alizadeh S, Izyurov I, Teckentrup V, Chang C, van der Meer J, Erb M, Kroemer N, Koenig T, Walter M, Jamalabadi H. Evidence for modulation of EEG microstate sequence by vigilance level. Neuroimage 2020; 224:117393. [PMID: 32971266 DOI: 10.1016/j.neuroimage.2020.117393] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/11/2020] [Accepted: 09/16/2020] [Indexed: 12/25/2022] Open
Abstract
The momentary global functional state of the brain is reflected in its electric field configuration and cluster analytical approaches have consistently shown four configurations, referred to as EEG microstate classes A to D. Changes in microstate parameters are associated with a number of neuropsychiatric disorders, task performance, and mental state establishing their relevance for cognition. However, the common practice to use eye-closed resting state data to assess the temporal dynamics of microstate parameters might induce systematic confounds related to vigilance levels. Here, we studied the dynamics of microstate parameters in two independent data sets and showed that the parameters of microstates are strongly associated with vigilance level assessed both by EEG power analysis and fMRI global signal. We found that the duration and contribution of microstate class C, as well as transition probabilities towards microstate class C were positively associated with vigilance, whereas the sign was reversed for microstate classes A and B. Furthermore, in looking for the origins of the correspondence between microstates and vigilance level, we found Granger-causal effects of vigilance levels on microstate sequence parameters. Collectively, our findings suggest that duration and occurrence of microstates have a different origin and possibly reflect different physiological processes. Finally, our findings indicate the need for taking vigilance levels into consideration in resting-sate EEG investigations.
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Affiliation(s)
- Marina Krylova
- Department of Psychiatry and Psychotherapy, Division for Translational Psychiatry, University of Tübingen, Tübingen, Germany; Department of Psychiatry and Psychotherapy, Jena University Hospital, Philosophenweg 3, 07743 Jena, Germany
| | - Sarah Alizadeh
- Department of Psychiatry and Psychotherapy, Division for Translational Psychiatry, University of Tübingen, Tübingen, Germany
| | - Igor Izyurov
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Philosophenweg 3, 07743 Jena, Germany; Department of Psychiatry and Psychotherapy, Division for Translational Psychiatry, University of Tübingen, Tübingen, Germany
| | - Vanessa Teckentrup
- Department of Psychiatry and Psychotherapy, Division for Translational Psychiatry, University of Tübingen, Tübingen, Germany
| | - Catie Chang
- Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, USA
| | | | - Michael Erb
- Division of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
| | - Nils Kroemer
- Department of Psychiatry and Psychotherapy, Division for Translational Psychiatry, University of Tübingen, Tübingen, Germany
| | - Thomas Koenig
- Translational Research Center, University Hospital of Psychiatry and Psychotherapy, University of Bern, Switzerland
| | - Martin Walter
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Philosophenweg 3, 07743 Jena, Germany; Department of Psychiatry and Psychotherapy, Division for Translational Psychiatry, University of Tübingen, Tübingen, Germany; Clinical Affective Neuroimaging Laboratory, Magdeburg, Germany; Leibniz Institute for Neurobiology, Magdeburg, Germany; Max Planck Institute for biological cybernetics, Tübingen, Germany.
| | - Hamidreza Jamalabadi
- Department of Psychiatry and Psychotherapy, Division for Translational Psychiatry, University of Tübingen, Tübingen, Germany.
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21
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Sokolov AA, Zeidman P, Razi A, Erb M, Ryvlin P, Pavlova MA, Friston KJ. Asymmetric high-order anatomical brain connectivity sculpts effective connectivity. Netw Neurosci 2020; 4:871-890. [PMID: 33615094 PMCID: PMC7888488 DOI: 10.1162/netn_a_00150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 05/18/2020] [Indexed: 12/12/2022] Open
Abstract
Bridging the gap between symmetric, direct white matter brain connectivity and neural dynamics that are often asymmetric and polysynaptic may offer insights into brain architecture, but this remains an unresolved challenge in neuroscience. Here, we used the graph Laplacian matrix to simulate symmetric and asymmetric high-order diffusion processes akin to particles spreading through white matter pathways. The simulated indirect structural connectivity outperformed direct as well as absent anatomical information in sculpting effective connectivity, a measure of causal and directed brain dynamics. Crucially, an asymmetric diffusion process determined by the sensitivity of the network nodes to their afferents best predicted effective connectivity. The outcome is consistent with brain regions adapting to maintain their sensitivity to inputs within a dynamic range. Asymmetric network communication models offer a promising perspective for understanding the relationship between structural and functional brain connectomes, both in normalcy and neuropsychiatric conditions.
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Affiliation(s)
- Arseny A. Sokolov
- Wellcome Centre for Human Neuroimaging, Institute of Neurology, University College London, London, United Kingdom
- Department of Neurology, University Neurorehabilitation, University Hospital Inselspital, University of Bern, Bern, Switzerland
- Service de Neurologie and Neuroscape@NeuroTech Platform, Département des Neurosciences Cliniques, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
- Neuroscape Center, Weill Institute for Neurosciences, Department of Neurology, University of California San Francisco, San Francisco, CA, USA
| | - Peter Zeidman
- Wellcome Centre for Human Neuroimaging, Institute of Neurology, University College London, London, United Kingdom
| | - Adeel Razi
- Wellcome Centre for Human Neuroimaging, Institute of Neurology, University College London, London, United Kingdom
- Monash Institute of Cognitive and Clinical Neurosciences & Monash Biomedical Imaging, Monash University, Clayton, Australia
- Department of Electronic Engineering, NED University of Engineering and Technology, Karachi, Pakistan
| | - Michael Erb
- Department of Biomedical Magnetic Resonance, University of Tübingen Medical School, Tübingen, Germany
| | - Philippe Ryvlin
- Service de Neurologie and Neuroscape@NeuroTech Platform, Département des Neurosciences Cliniques, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Marina A. Pavlova
- Department of Psychiatry and Psychotherapy, University of Tübingen Medical School, Tübingen, Germany
| | - Karl J. Friston
- Wellcome Centre for Human Neuroimaging, Institute of Neurology, University College London, London, United Kingdom
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22
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Alzaid H, Ethofer T, Hobert MA, Kardatzki B, Erb M, Maetzler W, Berg D. Distinct Relationship Between Cognitive Flexibility and White Matter Integrity in Individuals at Risk of Parkinson’s Disease. Front Aging Neurosci 2020; 12:250. [PMID: 32903902 PMCID: PMC7439016 DOI: 10.3389/fnagi.2020.00250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 07/20/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- Haidar Alzaid
- Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
- *Correspondence: Haidar Alzaid,
| | - Thomas Ethofer
- Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Markus A. Hobert
- Department of Neurology, Christian-Albrecht University of Kiel, Kiel, Germany
| | - Bernd Kardatzki
- Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
| | - Michael Erb
- Department of Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
| | - Walter Maetzler
- Department of Neurology, Christian-Albrecht University of Kiel, Kiel, Germany
| | - Daniela Berg
- Department of Neurology, Christian-Albrecht University of Kiel, Kiel, Germany
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23
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Kaufman D, McKay N, Routson C, Erb M, Davis B, Heiri O, Jaccard S, Tierney J, Dätwyler C, Axford Y, Brussel T, Cartapanis O, Chase B, Dawson A, de Vernal A, Engels S, Jonkers L, Marsicek J, Moffa-Sánchez P, Morrill C, Orsi A, Rehfeld K, Saunders K, Sommer PS, Thomas E, Tonello M, Tóth M, Vachula R, Andreev A, Bertrand S, Biskaborn B, Bringué M, Brooks S, Caniupán M, Chevalier M, Cwynar L, Emile-Geay J, Fegyveresi J, Feurdean A, Finsinger W, Fortin MC, Foster L, Fox M, Gajewski K, Grosjean M, Hausmann S, Heinrichs M, Holmes N, Ilyashuk B, Ilyashuk E, Juggins S, Khider D, Koinig K, Langdon P, Larocque-Tobler I, Li J, Lotter A, Luoto T, Mackay A, Magyari E, Malevich S, Mark B, Massaferro J, Montade V, Nazarova L, Novenko E, Pařil P, Pearson E, Peros M, Pienitz R, Płóciennik M, Porinchu D, Potito A, Rees A, Reinemann S, Roberts S, Rolland N, Salonen S, Self A, Seppä H, Shala S, St-Jacques JM, Stenni B, Syrykh L, Tarrats P, Taylor K, van den Bos V, Velle G, Wahl E, Walker I, Wilmshurst J, Zhang E, Zhilich S. Author Correction: A global database of Holocene paleotemperature records. Sci Data 2020; 7:246. [PMID: 32678108 PMCID: PMC7366677 DOI: 10.1038/s41597-020-00584-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Darrell Kaufman
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA.
| | - Nicholas McKay
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA
| | - Cody Routson
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA
| | - Michael Erb
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA
| | - Basil Davis
- University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, 1015, Switzerland
| | - Oliver Heiri
- University of Basel, Department of Environmental Sciences, Basel, 4056, Switzerland
| | - Samuel Jaccard
- University of Bern, Institute of Geological Sciences and Oeschger Center for Climate Change Research, Bern, CH-3012, Switzerland
| | - Jessica Tierney
- University of Arizona, Department of Geosciences, Tucson, AZ, 85721, USA
| | - Christoph Dätwyler
- University of Bern, Institute of Geography and Oeschger Centre for Climate Change Research, Bern, 3012, Switzerland
| | - Yarrow Axford
- Northwestern University, Department of Earth and Planetary Sciences, Evanston, IL, 60208, USA
| | - Thomas Brussel
- University of Utah, Department of Geography, Salt Lake City, UT, 84112, USA
| | - Olivier Cartapanis
- University of Bern, Institute of Geological Sciences and Oeschger Center for Climate Change Research, Bern, CH-3012, Switzerland
| | - Brian Chase
- Université de Montpellier, Centre National de la Recherche Scientifique, Institut des Sciences de l'Evolution, Montpellier, 34095, France
| | - Andria Dawson
- Mount Royal University, Department of General Education, Calgary, T3E6K6, Canada
| | - Anne de Vernal
- Université du Québec à Montréal, Geotop-UQAM, Montréal, H3C 3P8, Canada
| | - Stefan Engels
- University of London, Birkbeck, Department of Geography, London, WC1E 7HX, UK
| | - Lukas Jonkers
- University of Bremen, MARUM Center for Marine Environmental Sciences, Bremen, 28359, Germany
| | - Jeremiah Marsicek
- University of Wisconsin-Madison, Department of Geoscience, Madison, WI, 53706, USA
| | | | - Carrie Morrill
- University of Colorado, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, 80309, USA
| | - Anais Orsi
- Laboratoire des Sciences du Climat et de l'Environnement, Université Paris-Saclay, Gif sur Yvette, 91191, France
| | - Kira Rehfeld
- Heidelberg University, Institute of Environmental Physics, Heidelberg, 69221, Germany
| | - Krystyna Saunders
- Australian Nuclear Science and Technology Organisation, Environment, Lucas Heights, 2234, Australia
| | - Philipp S Sommer
- University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, 1015, Switzerland.,Institute for Coastal Research, Helmholtz-Zentrum, Geesthacht, Germany
| | - Elizabeth Thomas
- University at Buffalo, Department of Geology, Buffalo, NY, 14206, USA
| | - Marcela Tonello
- Universidad Nacional de Mar del Plata, Instituto de Investigaciones Marinas y Costeras, Mar del Plata, 7600, Argentina
| | - Mónika Tóth
- Balaton Limnological Institute, Centre for Ecological Research, Tihany, H-8237, Hungary
| | - Richard Vachula
- Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, 2912, USA
| | - Andrei Andreev
- Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, Polar Terrestrial Environmental Systems, Potsdam, 14473, Germany
| | | | - Boris Biskaborn
- Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, Polar Terrestrial Environmental Systems, Potsdam, 14473, Germany
| | - Manuel Bringué
- Natural Resources Canada, Geological Survey of Canada, Calgary, AB, T2L 2A7, Canada
| | - Stephen Brooks
- Natural History Museum, Department of Life Sciences, London, SW7 5BD, UK
| | - Magaly Caniupán
- University of Concepcion, Department of Oceanography and COPAS Sur-Austral Program, Concepcion, 4030000, Chile
| | - Manuel Chevalier
- University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, 1015, Switzerland
| | - Les Cwynar
- University of New Brunswick, Department of Biology, Fredericton, NB, E3B 5A3, Canada
| | - Julien Emile-Geay
- University of Southern California, Department of Earth Sciences, Los Angeles, CA, 90089, USA
| | - John Fegyveresi
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA
| | - Angelica Feurdean
- Goethe University, Department of Physical Geography, Frankfurt am Main, 60438, Germany
| | - Walter Finsinger
- Université de Montpellier, Centre National de la Recherche Scientifique, Institut des Sciences de l'Evolution, Montpellier, 34095, France
| | - Marie-Claude Fortin
- University of Ottawa, Ottawa-Carleton Institute of Biology, Ottawa, K1N6N5, Canada
| | - Louise Foster
- Newcastle University, School of Geography, Politics and Sociology, Newcastle-upon-Tyne, NE17RU, UK.,British Antarctic Survey, Palaeoenvironments and Ice Sheets, Cambridge, CB3 0ET, UK
| | - Mathew Fox
- University of Arizona, School of Anthropology, Tucson, AZ, 85721, USA
| | - Konrad Gajewski
- University of Ottawa, Department of Geography, Environment and Geomatics, Ottawa, K1N6N5, Canada
| | - Martin Grosjean
- University of Bern, Institute of Geography and Oeschger Centre for Climate Change Research, Bern, 3012, Switzerland
| | | | - Markus Heinrichs
- Okanagan College, Department of Geography and Earth and Environmental Science, Kelowna, V1Y 4X8, Canada
| | - Naomi Holmes
- Sheffield Hallam University, Department of the Natural and Built Environment, Sheffield, S1 1WB, UK
| | - Boris Ilyashuk
- University of Innsbruck, Department of Ecology, Innsbruck, 6020, Austria
| | - Elena Ilyashuk
- University of Innsbruck, Department of Ecology, Innsbruck, 6020, Austria
| | - Steve Juggins
- Newcastle University, School of Geography, Politics and Sociology, Newcastle-upon-Tyne, NE17RU, UK
| | - Deborah Khider
- University of Southern California, Information Sciences Institute, Marina Del Rey, CA, 90292, USA
| | - Karin Koinig
- University of Innsbruck, Department of Ecology, Innsbruck, 6020, Austria
| | - Peter Langdon
- University of Southampton, School of Geography and Environmental Science, Southampton, SO17 1BJ, UK
| | | | - Jianyong Li
- Northwest University, China, College of Urban and Environmental Sciences, Xi'an, 710027, China
| | - André Lotter
- University of Bern, Palaeoecology, Bern, CH-3013, Switzerland
| | - Tomi Luoto
- University of Helsinki, Faculty of Biological and Environmental Sciences, Lahti, 15140, Finland
| | - Anson Mackay
- University College London, Department of Geography, London, WC1E 6BT, UK
| | - Eniko Magyari
- Eötvös Loránd University, Department of Environmental and Landscape Geography, Budapest, 1117, Hungary
| | - Steven Malevich
- University of Arizona, Department of Geosciences, Tucson, AZ, 85721, USA
| | - Bryan Mark
- The Ohio State University, Department of Geography and Byrd Polar and Climate Research Center, Columbus, OH, 43210, USA
| | | | - Vincent Montade
- Université de Montpellier, Centre National de la Recherche Scientifique, Institut des Sciences de l'Evolution, Montpellier, 34095, France
| | - Larisa Nazarova
- Potsdam University, Institute of Geosciences, Potsdam, 14476, Germany
| | - Elena Novenko
- Lomonosov Moscow State University, Faculty of Geography, Moscow, 119991, Russia
| | - Petr Pařil
- Masaryk University, Department of Botany and Zoology, Brno, 61137, Czech Republic
| | - Emma Pearson
- Newcastle University, School of Geography, Politics and Sociology, Newcastle-upon-Tyne, NE17RU, UK
| | - Matthew Peros
- Bishop's University, Department of Environment and Geography, Sherbrooke, Quebec, J1M 1Z7, Canada
| | - Reinhard Pienitz
- Université Laval, Department of Geography, Center for Northern Studies, Québec, G1V 0A6, Canada
| | - Mateusz Płóciennik
- University of Lodz, Department of Invertebrate Zoology and Hydrobiology, Lodz, 90-237, Poland
| | - David Porinchu
- University of Georgia, Department of Geography, Athens, GA, 30606, USA
| | - Aaron Potito
- National University of Ireland Galway, School of Geography, Archaeology and Irish Studies, Galway, H91 TK33, Ireland
| | - Andrew Rees
- Victoria University of Wellington, School of Geography, Environment and Earth Sciences, Wellington, 6012, New Zealand
| | - Scott Reinemann
- Sinclair Community College, Geography Department, Dayton, OH, 45402, USA
| | - Stephen Roberts
- British Antarctic Survey, Palaeoenvironments and Ice Sheets, Cambridge, CB3 0ET, UK
| | - Nicolas Rolland
- Fisheries and Ocean Canada, Gulf Fisheries Centre, Moncton, NB, E1C 9B6, Canada
| | - Sakari Salonen
- University of Helsinki, Department of Geosciences and Geography, Helsinki, 00014, Finland
| | - Angela Self
- The Natural History Museum, London, SW7 5BD, UK
| | - Heikki Seppä
- University of Helsinki, Department of Geosciences and Geography, Helsinki, 00014, Finland
| | - Shyhrete Shala
- Stockholm University, Department of Physical Geography, Stockholm, SE-106 91, Sweden
| | | | - Barbara Stenni
- Ca' Foscari University of Venice, Department of Environmental Sciences, Informatics and Statistics, Venezia, 30172, Italy
| | - Liudmila Syrykh
- Herzen State Pedagogical University of Russia, Research Laboratory of the Environmental management, St. Petersburg, 191186, Russia
| | - Pol Tarrats
- Universitat de Barcelona, Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Secció Ecologia, Barcelona, 08028, Spain
| | - Karen Taylor
- National University of Ireland Galway, School of Geography, Archaeology and Irish Studies, Galway, H91 TK33, Ireland.,University College Cork, Department of Geography, Cork, Ireland
| | - Valerie van den Bos
- Victoria University of Wellington, School of Geography, Environment and Earth Sciences, Wellington, 6012, New Zealand
| | - Gaute Velle
- NORCE Norwegian Research Centre, LFI, Bergen, 5008, Norway
| | - Eugene Wahl
- US National Oceanic and Atmospheric Administration, National Centers for Environmental Information, Boulder, CO, 80305, USA
| | - Ian Walker
- University of British Columbia, Department of Biology; Department of Earth, Environmental and Geographic Sciences, Kelowna, British Columbia, V1V 1V7, Canada
| | - Janet Wilmshurst
- Landcare Research, Ecosystems and Conservation, Lincoln, 7640, New Zealand
| | - Enlou Zhang
- Chinese Academy of Sciences, Nanjing Institute of Geography and Limnology, Nanjing, 210008, China
| | - Snezhana Zhilich
- Institute of Archaeology and Ethnography, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia
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24
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Kaufman D, McKay N, Routson C, Erb M, Dätwyler C, Sommer PS, Heiri O, Davis B. Holocene global mean surface temperature, a multi-method reconstruction approach. Sci Data 2020; 7:201. [PMID: 32606396 PMCID: PMC7327079 DOI: 10.1038/s41597-020-0530-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 05/07/2020] [Indexed: 11/27/2022] Open
Abstract
An extensive new multi-proxy database of paleo-temperature time series (Temperature 12k) enables a more robust analysis of global mean surface temperature (GMST) and associated uncertainties than was previously available. We applied five different statistical methods to reconstruct the GMST of the past 12,000 years (Holocene). Each method used different approaches to averaging the globally distributed time series and to characterizing various sources of uncertainty, including proxy temperature, chronology and methodological choices. The results were aggregated to generate a multi-method ensemble of plausible GMST and latitudinal-zone temperature reconstructions with a realistic range of uncertainties. The warmest 200-year-long interval took place around 6500 years ago when GMST was 0.7 °C (0.3, 1.8) warmer than the 19th Century (median, 5th, 95th percentiles). Following the Holocene global thermal maximum, GMST cooled at an average rate -0.08 °C per 1000 years (-0.24, -0.05). The multi-method ensembles and the code used to generate them highlight the utility of the Temperature 12k database, and they are now available for future use by studies aimed at understanding Holocene evolution of the Earth system.
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Affiliation(s)
- Darrell Kaufman
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA.
| | - Nicholas McKay
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA
| | - Cody Routson
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA
| | - Michael Erb
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA
| | - Christoph Dätwyler
- University of Bern, Institute of Geography and Oeschger Centre for Climate Change Research, Bern, 3012, Switzerland
| | - Philipp S Sommer
- University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, 1015, Switzerland
- Institute of Coastal Research, Helmholtz-Zentrum Geesthacht - Centre for Materials and Coastal Research, Max-Planck-Straße 1, Geesthacht, 21502, Germany
| | - Oliver Heiri
- University of Basel, Department of Environmental Sciences, Basel, 4056, Switzerland
| | - Basil Davis
- University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, 1015, Switzerland
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25
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Kaufman D, McKay N, Routson C, Erb M, Davis B, Heiri O, Jaccard S, Tierney J, Dätwyler C, Axford Y, Brussel T, Cartapanis O, Chase B, Dawson A, de Vernal A, Engels S, Jonkers L, Marsicek J, Moffa-Sánchez P, Morrill C, Orsi A, Rehfeld K, Saunders K, Sommer PS, Thomas E, Tonello M, Tóth M, Vachula R, Andreev A, Bertrand S, Biskaborn B, Bringué M, Brooks S, Caniupán M, Chevalier M, Cwynar L, Emile-Geay J, Fegyveresi J, Feurdean A, Finsinger W, Fortin MC, Foster L, Fox M, Gajewski K, Grosjean M, Hausmann S, Heinrichs M, Holmes N, Ilyashuk B, Ilyashuk E, Juggins S, Khider D, Koinig K, Langdon P, Larocque-Tobler I, Li J, Lotter A, Luoto T, Mackay A, Magyari E, Malevich S, Mark B, Massaferro J, Montade V, Nazarova L, Novenko E, Pařil P, Pearson E, Peros M, Pienitz R, Płóciennik M, Porinchu D, Potito A, Rees A, Reinemann S, Roberts S, Rolland N, Salonen S, Self A, Seppä H, Shala S, St-Jacques JM, Stenni B, Syrykh L, Tarrats P, Taylor K, van den Bos V, Velle G, Wahl E, Walker I, Wilmshurst J, Zhang E, Zhilich S. A global database of Holocene paleotemperature records. Sci Data 2020; 7:115. [PMID: 32286335 PMCID: PMC7156486 DOI: 10.1038/s41597-020-0445-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 03/09/2020] [Indexed: 11/28/2022] Open
Abstract
A comprehensive database of paleoclimate records is needed to place recent warming into the longer-term context of natural climate variability. We present a global compilation of quality-controlled, published, temperature-sensitive proxy records extending back 12,000 years through the Holocene. Data were compiled from 679 sites where time series cover at least 4000 years, are resolved at sub-millennial scale (median spacing of 400 years or finer) and have at least one age control point every 3000 years, with cut-off values slackened in data-sparse regions. The data derive from lake sediment (51%), marine sediment (31%), peat (11%), glacier ice (3%), and other natural archives. The database contains 1319 records, including 157 from the Southern Hemisphere. The multi-proxy database comprises paleotemperature time series based on ecological assemblages, as well as biophysical and geochemical indicators that reflect mean annual or seasonal temperatures, as encoded in the database. This database can be used to reconstruct the spatiotemporal evolution of Holocene temperature at global to regional scales, and is publicly available in Linked Paleo Data (LiPD) format.
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Affiliation(s)
- Darrell Kaufman
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA.
| | - Nicholas McKay
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA
| | - Cody Routson
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA
| | - Michael Erb
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA
| | - Basil Davis
- University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, 1015, Switzerland
| | - Oliver Heiri
- University of Basel, Department of Environmental Sciences, Basel, 4056, Switzerland
| | - Samuel Jaccard
- University of Bern, Institute of Geological Sciences and Oeschger Center for Climate Change Research, Bern, CH-3012, Switzerland
| | - Jessica Tierney
- University of Arizona, Department of Geosciences, Tucson, AZ, 85721, USA
| | - Christoph Dätwyler
- University of Bern, Institute of Geography and Oeschger Centre for Climate Change Research, Bern, 3012, Switzerland
| | - Yarrow Axford
- Northwestern University, Department of Earth and Planetary Sciences, Evanston, IL, 60208, USA
| | - Thomas Brussel
- University of Utah, Department of Geography, Salt Lake City, UT, 84112, USA
| | - Olivier Cartapanis
- University of Bern, Institute of Geological Sciences and Oeschger Center for Climate Change Research, Bern, CH-3012, Switzerland
| | - Brian Chase
- Université de Montpellier, Centre National de la Recherche Scientifique, Institut des Sciences de l'Evolution, Montpellier, 34095, France
| | - Andria Dawson
- Mount Royal University, Department of General Education, Calgary, T3E6K6, Canada
| | - Anne de Vernal
- Université du Québec à Montréal, Geotop-UQAM, Montréal, H3C 3P8, Canada
| | - Stefan Engels
- University of London, Birkbeck, Department of Geography, London, WC1E 7HX, UK
| | - Lukas Jonkers
- University of Bremen, MARUM Center for Marine Environmental Sciences, Bremen, 28359, Germany
| | - Jeremiah Marsicek
- University of Wisconsin-Madison, Department of Geoscience, Madison, WI, 53706, USA
| | | | - Carrie Morrill
- University of Colorado, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, 80309, USA
| | - Anais Orsi
- Laboratoire des Sciences du Climat et de l'Environnement, Université Paris-Saclay, Gif sur Yvette, 91191, France
| | - Kira Rehfeld
- Heidelberg University, Institute of Environmental Physics, Heidelberg, 69221, Germany
| | - Krystyna Saunders
- Australian Nuclear Science and Technology Organisation, Environment, Lucas Heights, 2234, Australia
| | - Philipp S Sommer
- University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, 1015, Switzerland
- Institute for Coastal Research, Helmholtz-Zentrum, Geesthacht, Germany
| | - Elizabeth Thomas
- University at Buffalo, Department of Geology, Buffalo, NY, 14206, USA
| | - Marcela Tonello
- Universidad Nacional de Mar del Plata, Instituto de Investigaciones Marinas y Costeras, Mar del Plata, 7600, Argentina
| | - Mónika Tóth
- Balaton Limnological Institute, Centre for Ecological Research, Tihany, H-8237, Hungary
| | - Richard Vachula
- Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, 2912, USA
| | - Andrei Andreev
- Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, Polar Terrestrial Environmental Systems, Potsdam, 14473, Germany
| | | | - Boris Biskaborn
- Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, Polar Terrestrial Environmental Systems, Potsdam, 14473, Germany
| | - Manuel Bringué
- Natural Resources Canada, Geological Survey of Canada, Calgary, AB, T2L 2A7, Canada
| | - Stephen Brooks
- Natural History Museum, Department of Life Sciences, London, SW7 5BD, UK
| | - Magaly Caniupán
- University of Concepcion, Department of Oceanography and COPAS Sur-Austral Program, Concepcion, 4030000, Chile
| | - Manuel Chevalier
- University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, 1015, Switzerland
| | - Les Cwynar
- University of New Brunswick, Department of Biology, Fredericton, NB, E3B 5A3, Canada
| | - Julien Emile-Geay
- University of Southern California, Department of Earth Sciences, Los Angeles, CA, 90089, USA
| | - John Fegyveresi
- Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, 86011, USA
| | - Angelica Feurdean
- Goethe University, Department of Physical Geography, Frankfurt am Main, 60438, Germany
| | - Walter Finsinger
- Université de Montpellier, Centre National de la Recherche Scientifique, Institut des Sciences de l'Evolution, Montpellier, 34095, France
| | - Marie-Claude Fortin
- University of Ottawa, Ottawa-Carleton Institute of Biology, Ottawa, K1N6N5, Canada
| | - Louise Foster
- Newcastle University, School of Geography, Politics and Sociology, Newcastle-upon-Tyne, NE17RU, UK
- British Antarctic Survey, Palaeoenvironments and Ice Sheets, Cambridge, CB3 0ET, UK
| | - Mathew Fox
- University of Arizona, School of Anthropology, Tucson, AZ, 85721, USA
| | - Konrad Gajewski
- University of Ottawa, Department of Geography, Environment and Geomatics, Ottawa, K1N6N5, Canada
| | - Martin Grosjean
- University of Bern, Institute of Geography and Oeschger Centre for Climate Change Research, Bern, 3012, Switzerland
| | | | - Markus Heinrichs
- Okanagan College, Department of Geography and Earth and Environmental Science, Kelowna, V1Y 4X8, Canada
| | - Naomi Holmes
- Sheffield Hallam University, Department of the Natural and Built Environment, Sheffield, S1 1WB, UK
| | - Boris Ilyashuk
- University of Innsbruck, Department of Ecology, Innsbruck, 6020, Austria
| | - Elena Ilyashuk
- University of Innsbruck, Department of Ecology, Innsbruck, 6020, Austria
| | - Steve Juggins
- Newcastle University, School of Geography, Politics and Sociology, Newcastle-upon-Tyne, NE17RU, UK
| | - Deborah Khider
- University of Southern California, Information Sciences Institute, Marina Del Rey, CA, 90292, USA
| | - Karin Koinig
- University of Innsbruck, Department of Ecology, Innsbruck, 6020, Austria
| | - Peter Langdon
- University of Southampton, School of Geography and Environmental Science, Southampton, SO17 1BJ, UK
| | | | - Jianyong Li
- Northwest University, China, College of Urban and Environmental Sciences, Xi'an, 710027, China
| | - André Lotter
- University of Bern, Palaeoecology, Bern, CH-3013, Switzerland
| | - Tomi Luoto
- University of Helsinki, Faculty of Biological and Environmental Sciences, Lahti, 15140, Finland
| | - Anson Mackay
- University College London, Department of Geography, London, WC1E 6BT, UK
| | - Eniko Magyari
- Eötvös Loránd University, Department of Environmental and Landscape Geography, Budapest, 1117, Hungary
| | - Steven Malevich
- University of Arizona, Department of Geosciences, Tucson, AZ, 85721, USA
| | - Bryan Mark
- The Ohio State University, Department of Geography and Byrd Polar and Climate Research Center, Columbus, OH, 43210, USA
| | | | - Vincent Montade
- Université de Montpellier, Centre National de la Recherche Scientifique, Institut des Sciences de l'Evolution, Montpellier, 34095, France
| | - Larisa Nazarova
- Potsdam University, Institute of Geosciences, Potsdam, 14476, Germany
| | - Elena Novenko
- Lomonosov Moscow State University, Faculty of Geography, Moscow, 119991, Russia
| | - Petr Pařil
- Masaryk University, Department of Botany and Zoology, Brno, 61137, Czech Republic
| | - Emma Pearson
- Newcastle University, School of Geography, Politics and Sociology, Newcastle-upon-Tyne, NE17RU, UK
| | - Matthew Peros
- Bishop's University, Department of Environment and Geography, Sherbrooke, Quebec, J1M 1Z7, Canada
| | - Reinhard Pienitz
- Université Laval, Department of Geography, Center for Northern Studies, Québec, G1V 0A6, Canada
| | - Mateusz Płóciennik
- University of Lodz, Department of Invertebrate Zoology and Hydrobiology, Lodz, 90-237, Poland
| | - David Porinchu
- University of Georgia, Department of Geography, Athens, GA, 30606, USA
| | - Aaron Potito
- National University of Ireland Galway, School of Geography, Archaeology and Irish Studies, Galway, H91 TK33, Ireland
| | - Andrew Rees
- Victoria University of Wellington, School of Geography, Environment and Earth Sciences, Wellington, 6012, New Zealand
| | - Scott Reinemann
- Sinclair Community College, Geography Department, Dayton, OH, 45402, USA
| | - Stephen Roberts
- British Antarctic Survey, Palaeoenvironments and Ice Sheets, Cambridge, CB3 0ET, UK
| | - Nicolas Rolland
- Fisheries and Ocean Canada, Gulf Fisheries Centre, Moncton, NB, E1C 9B6, Canada
| | - Sakari Salonen
- University of Helsinki, Department of Geosciences and Geography, Helsinki, 00014, Finland
| | - Angela Self
- The Natural History Museum, London, SW7 5BD, UK
| | - Heikki Seppä
- University of Helsinki, Department of Geosciences and Geography, Helsinki, 00014, Finland
| | - Shyhrete Shala
- Stockholm University, Department of Physical Geography, Stockholm, SE-106 91, Sweden
| | | | - Barbara Stenni
- Ca' Foscari University of Venice, Department of Environmental Sciences, Informatics and Statistics, Venezia, 30172, Italy
| | - Liudmila Syrykh
- Herzen State Pedagogical University of Russia, Research Laboratory of the Environmental management, St. Petersburg, 191186, Russia
| | - Pol Tarrats
- Universitat de Barcelona, Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Secció Ecologia, Barcelona, 08028, Spain
| | - Karen Taylor
- National University of Ireland Galway, School of Geography, Archaeology and Irish Studies, Galway, H91 TK33, Ireland
- University College Cork, Department of Geography, Cork, Ireland
| | - Valerie van den Bos
- Victoria University of Wellington, School of Geography, Environment and Earth Sciences, Wellington, 6012, New Zealand
| | - Gaute Velle
- NORCE Norwegian Research Centre, LFI, Bergen, 5008, Norway
| | - Eugene Wahl
- US National Oceanic and Atmospheric Administration, National Centers for Environmental Information, Boulder, CO, 80305, USA
| | - Ian Walker
- University of British Columbia, Department of Biology; Department of Earth, Environmental and Geographic Sciences, Kelowna, British Columbia, V1V 1V7, Canada
| | - Janet Wilmshurst
- Landcare Research, Ecosystems and Conservation, Lincoln, 7640, New Zealand
| | - Enlou Zhang
- Chinese Academy of Sciences, Nanjing Institute of Geography and Limnology, Nanjing, 210008, China
| | - Snezhana Zhilich
- Institute of Archaeology and Ethnography, Russian Academy of Sciences, Siberian Branch, Novosibirsk, 630090, Russia
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26
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Laggner M, Gugerell A, Bachmann C, Hofbauer H, Vorstandlechner V, Seibold M, Gouya Lechner G, Peterbauer A, Madlener S, Demyanets S, Sorgenfrey D, Ostler T, Erb M, Mildner M, Ankersmit HJ. Reproducibility of GMP-compliant production of therapeutic stressed peripheral blood mononuclear cell-derived secretomes, a novel class of biological medicinal products. Stem Cell Res Ther 2020; 11:9. [PMID: 31900195 PMCID: PMC6942406 DOI: 10.1186/s13287-019-1524-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 11/29/2019] [Accepted: 12/10/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The recent concept of secretome-based tissue regeneration has profoundly altered the field of regenerative medicine and offers promising novel therapeutic options. In contrast to medicinal products with a single active substance, cell-derived secretomes comprise pleiotropic bioactive ingredients, representing a major obstacle for reproducible drug product efficacy and warranting patient safety. Good manufacturing practice (GMP)-compliant production guarantees high batch-to-batch consistency and reproducible efficacy of biological medicinal products, but different batches of cellular secretomes produced under GMP have not been compared yet, and suitable quality control parameters have not been established. To this end, we analyzed diverse biological and functional parameters of different batches produced under GMP of the secretome obtained from γ-irradiated peripheral blood mononuclear cells with proven tissue regenerative properties in infarcted myocardium, stroke, spinal cord injury, and skin wounds. METHODS We quantified key secretome ingredients, including cytokines, lipids, and extracellular vesicles, and functionally assessed potency in tube formation assay, ex vivo aortic ring sprouting assay, and cell-based protein and reporter gene assays. Furthermore, we determined secretome stability in different batches after 6 months of storage at various ambient temperatures. RESULTS We observed that inter-batch differences in the bioactive components and secretome properties were small despite considerable differences in protein concentrations and potencies between individual donor secretomes. Stability tests showed that the analytical and functional properties of the secretomes remained stable when lyophilisates were stored at temperatures up to + 5 °C for 6 months. CONCLUSIONS We are the first to demonstrate the consistent production of cell-derived, yet cell-free secretome as a biological medicinal product. The results from this study provide the basis for selecting appropriate quality control parameters for GMP-compliant production of therapeutic cell secretomes and pave the way for future clinical trials employing secretomes in tissue regenerative medicine.
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Affiliation(s)
- Maria Laggner
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
| | - Alfred Gugerell
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
| | | | - Helmut Hofbauer
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
| | - Vera Vorstandlechner
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
- Aposcience AG, Vienna, Austria
| | | | | | - Anja Peterbauer
- Austrian Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Sibylle Madlener
- Molecular Neuro-Oncology, Department of Pediatrics and Adolescent Medicine and Institute of Neurology, Medical University of Vienna, Vienna, Austria
- Comprehensive Cancer Center of the Medical University of Vienna, Vienna, Austria
| | - Svitlana Demyanets
- Department for Laboratory Medicine at the Medical University of Vienna, Vienna, Austria
| | | | - Tobias Ostler
- SYNLAB Analytics and Services Switzerland AG, Birsfelden, Switzerland
| | - Michael Erb
- SYNLAB Analytics and Services Switzerland AG, Birsfelden, Switzerland
| | - Michael Mildner
- Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Hendrik Jan Ankersmit
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.
- Aposcience AG, Vienna, Austria.
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27
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Kreifelts B, Ethofer T, Wiegand A, Brück C, Wächter S, Erb M, Lotze M, Wildgruber D. The Neural Correlates of Face-Voice-Integration in Social Anxiety Disorder. Front Psychiatry 2020; 11:657. [PMID: 32765311 PMCID: PMC7381153 DOI: 10.3389/fpsyt.2020.00657] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 06/24/2020] [Indexed: 12/04/2022] Open
Abstract
Faces and voices are very important sources of threat in social anxiety disorder (SAD), a common psychiatric disorder where core elements are fears of social exclusion and negative evaluation. Previous research in social anxiety evidenced increased cerebral responses to negative facial or vocal expressions and also generally increased hemodynamic responses to voices and faces. But it is unclear if also the cerebral process of face-voice-integration is altered in SAD. Applying functional magnetic resonance imaging, we investigated the correlates of the audiovisual integration of dynamic faces and voices in SAD as compared to healthy individuals. In the bilateral midsections of the superior temporal sulcus (STS) increased integration effects in SAD were observed driven by greater activation increases during audiovisual stimulation as compared to auditory stimulation. This effect was accompanied by increased functional connectivity with the visual association cortex and a more anterior position of the individual integration maxima along the STS in SAD. These findings demonstrate that the audiovisual integration of facial and vocal cues in SAD is not only systematically altered with regard to intensity and connectivity but also the individual location of the integration areas within the STS. These combined findings offer a novel perspective on the neuronal representation of social signal processing in individuals suffering from SAD.
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Affiliation(s)
- Benjamin Kreifelts
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Thomas Ethofer
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany.,Department for Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
| | - Ariane Wiegand
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Carolin Brück
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Sarah Wächter
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Michael Erb
- Department for Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
| | - Martin Lotze
- Functional Imaging Group, Department for Diagnostic Radiology and Neuroradiology, University of Greifswald, Greifswald, Germany
| | - Dirk Wildgruber
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
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28
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Kuehnel RU, Schroeter F, Hartrumpf M, Ostovar R, Ioannou S, Braun C, Filip T, Mueller T, Erb M, Albes J. Valve Fracturing of Degenerated Stented Bioprosthesis during Valve-in-Valve Procedure Is a Myth. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | - M. Erb
- Bernau bei Berlin, Germany
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29
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Ethofer T, Stegmaier S, Koch K, Reinl M, Kreifelts B, Schwarz L, Erb M, Scheffler K, Wildgruber D. Are you laughing at me? Neural correlates of social intent attribution to auditory and visual laughter. Hum Brain Mapp 2019; 41:353-361. [PMID: 31642167 PMCID: PMC7268062 DOI: 10.1002/hbm.24806] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/30/2019] [Accepted: 09/15/2019] [Indexed: 01/17/2023] Open
Abstract
Laughter is a multifaceted signal, which can convey social acceptance facilitating social bonding as well as social rejection inflicting social pain. In the current study, we addressed the neural correlates of social intent attribution to auditory or visual laughter within an fMRI study to identify brain areas showing linear increases of activation with social intent ratings. Negative social intent attributions were associated with activation increases within the medial prefrontal cortex/anterior cingulate cortex (mPFC/ACC). Interestingly, negative social intent attributions of auditory laughter were represented more rostral than visual laughter within this area. Our findings corroborate the role of the mPFC/ACC as key node for processing “social pain” with distinct modality‐specific subregions. Other brain areas that showed an increase of activation included bilateral inferior frontal gyrus and right superior/middle temporal gyrus (STG/MTG) for visually presented laughter and bilateral STG for auditory presented laughter with no overlap across modalities. Similarly, positive social intent attributions were linked to hemodynamic responses within the right inferior parietal lobe and right middle frontal gyrus, but there was no overlap of activity for visual and auditory laughter. Our findings demonstrate that social intent attribution to auditory and visual laughter is located in neighboring, but spatially distinct neural structures.
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Affiliation(s)
- Thomas Ethofer
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany.,Department of Biomedical Resonance, University of Tuebingen, Tuebingen, Germany
| | - Sophia Stegmaier
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Katharina Koch
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Maren Reinl
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Benjamin Kreifelts
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Lena Schwarz
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Michael Erb
- Department of Biomedical Resonance, University of Tuebingen, Tuebingen, Germany
| | - Klaus Scheffler
- Department of Biomedical Resonance, University of Tuebingen, Tuebingen, Germany.,Max-Planck-Institute for Biological Cybernetics, University of Tuebingen, Tuebingen, Germany
| | - Dirk Wildgruber
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
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30
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Simader E, Beer L, Laggner M, Vorstandlechner V, Gugerell A, Erb M, Kalinina P, Copic D, Moser D, Spittler A, Tschachler E, Jan Ankersmit H, Mildner M. Tissue-regenerative potential of the secretome of γ-irradiated peripheral blood mononuclear cells is mediated via TNFRSF1B-induced necroptosis. Cell Death Dis 2019; 10:729. [PMID: 31570701 PMCID: PMC6768878 DOI: 10.1038/s41419-019-1974-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/05/2019] [Accepted: 09/09/2019] [Indexed: 12/14/2022]
Abstract
Peripheral blood mononuclear cells (PBMCs) have been shown to produce and release a plethora of pro-angiogenetic factors in response to γ-irradiation, partially accounting for their tissue-regenerative capacity. Here, we investigated whether a certain cell subtype of PBMCs is responsible for this effect, and whether the type of cell death affects the pro-angiogenic potential of bioactive molecules released by γ-irradiated PBMCs. PBMCs and PBMC subpopulations, including CD4+ and CD8+ T cells, B cells, monocytes, and natural killer cells, were isolated and subjected to high-dose γ-irradiation. Transcriptome analysis revealed subpopulation-specific responses to γ-irradiation with distinct activation of pro-angiogenic pathways, cytokine production, and death receptor signalling. Analysis of the proteins released showed that interactions of the subsets are important for the generation of a pro-angiogenic secretome. This result was confirmed at the functional level by the finding that the secretome of γ-irradiated PBMCs displayed higher pro-angiogenic activity in an aortic ring assay. Scanning electron microscopy and image stream analysis of γ-irradiated PBMCs revealed distinct morphological changes, indicative for apoptotic and necroptotic cell death. While inhibition of apoptosis had no effect on the pro-angiogenic activity of the secretome, inhibiting necroptosis in stressed PBMCs abolished blood vessel sprouting. Mechanistically, we identified tumor necrosis factor (TNF) receptor superfamily member 1B as the main driver of necroptosis in response to γ-irradiation in PBMCs, which was most likely mediated via membrane-bound TNF-α. In conclusion, our study demonstrates that the pro-angiogenic activity of the secretome of γ-irradiated PBMCs requires interplay of different PBMC subpopulations. Furthermore, we show that TNF-dependent necroptosis is an indispensable molecular process for conferring tissue-regenerative activity and for the pro-angiogenic potential of the PBMC secretome. These findings contribute to a better understanding of secretome-based therapies in regenerative medicine.
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Affiliation(s)
- Elisabeth Simader
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria.,Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria
| | - Lucian Beer
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria.,Department of Radiology and Cancer Research UK Cambridge Center, Cambridge, CB2 0QQ, UK
| | - Maria Laggner
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria.,Vienna Business Agency Project 2343727 "APOSEC to clinic", Medical University Vienna, Vienna, Austria
| | - Vera Vorstandlechner
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria.,Vienna Business Agency Project 2343727 "APOSEC to clinic", Medical University Vienna, Vienna, Austria
| | - Alfred Gugerell
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria.,Vienna Business Agency Project 2343727 "APOSEC to clinic", Medical University Vienna, Vienna, Austria
| | - Michael Erb
- Synlab Analytics and Services Switzerland AG, Birsfelden, Switzerland
| | - Polina Kalinina
- Research Division of Biology and Pathobiology of the SkinDepartment of Dermatology, Research Division of Biology and Pathobiology of the Skin, Medical University of Vienna, Vienna, Austria
| | - Dragan Copic
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria.,Vienna Business Agency Project 2343727 "APOSEC to clinic", Medical University Vienna, Vienna, Austria
| | - Doris Moser
- Division of Oral and Maxillofacial Surgery, Medical University of Vienna, Vienna, Austria
| | - Andreas Spittler
- Research Laboratories, Core Facility Flow Cytometry, Medical University of Vienna, Vienna, Austria
| | - Erwin Tschachler
- Research Division of Biology and Pathobiology of the SkinDepartment of Dermatology, Research Division of Biology and Pathobiology of the Skin, Medical University of Vienna, Vienna, Austria
| | - Hendrik Jan Ankersmit
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria. .,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria. .,Vienna Business Agency Project 2343727 "APOSEC to clinic", Medical University Vienna, Vienna, Austria.
| | - Michael Mildner
- Research Division of Biology and Pathobiology of the SkinDepartment of Dermatology, Research Division of Biology and Pathobiology of the Skin, Medical University of Vienna, Vienna, Austria.
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Kotikalapudi R, Martin P, Erb M, Scheffler K, Marquetand J, Bender B, Focke NK. MP2RAGE multispectral voxel-based morphometry in focal epilepsy. Hum Brain Mapp 2019; 40:5042-5055. [PMID: 31403244 PMCID: PMC6865377 DOI: 10.1002/hbm.24756] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 07/15/2019] [Accepted: 07/21/2019] [Indexed: 01/26/2023] Open
Abstract
We assessed the applicability of MP2RAGE for voxel‐based morphometry. To this end, we analyzed its brain tissue segmentation characteristics in healthy subjects and the potential for detecting focal epileptogenic lesions (previously visible and nonvisible). Automated results and expert visual interpretations were compared with conventional VBM variants (i.e., T1 and T1 + FLAIR). Thirty‐one healthy controls and 21 patients with focal epilepsy were recruited. 3D T1‐, T2‐FLAIR, and MP2RAGE images (consisting of INV1, INV2, and MP2 maps) were acquired on a 3T MRI. The effects of brain tissue segmentation and lesion detection rates were analyzed among single‐ and multispectral VBM variants. MP2‐single‐contrast gave better delineation of deep, subcortical nuclei but was prone to misclassification of dura/vessels as gray matter, even more than conventional‐T1. The addition of multispectral combinations (INV1, INV2, or FLAIR) could markedly reduce such misclassifications. MP2 + INV1 yielded generally clearer gray matter segmentation allowing better differentiation of white matter and neighboring gyri. Different models detected known lesions with a sensitivity between 60 and 100%. In non lesional cases, MP2 + INV1 was found to be best with a concordant rate of 37.5%, specificity of 51.6% and concordant to discordant ratio of 0.60. In summary, we show that multispectral MP2RAGE VBM (e.g., MP2 + INV1, MP2 + INV2) can improve brain tissue segmentation and lesion detection in epilepsy.
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Affiliation(s)
- Raviteja Kotikalapudi
- Department of Diagnostic and Interventional Neuroradiology, University Hospital Tübingen, Tübingen, Germany.,Department of Neurology and Epileptology, Hertie Institute for Clinical Brain Research, University Hospital Tübingen, Tübingen, Germany.,Department of Clinical Neurophysiology, University Hospital Göttingen, Göttingen, Germany
| | - Pascal Martin
- Department of Neurology and Epileptology, Hertie Institute for Clinical Brain Research, University Hospital Tübingen, Tübingen, Germany
| | - Michael Erb
- Department of Biomedical Magnetic Resonance, University Hospital Tübingen, Tübingen, Germany
| | - Klaus Scheffler
- Department of Biomedical Magnetic Resonance, University Hospital Tübingen, Tübingen, Germany.,Max Planck Institute for Biological Cybernetics, Tübingen, Germany
| | - Justus Marquetand
- Department of Neurology and Epileptology, Hertie Institute for Clinical Brain Research, University Hospital Tübingen, Tübingen, Germany
| | - Benjamin Bender
- Department of Diagnostic and Interventional Neuroradiology, University Hospital Tübingen, Tübingen, Germany
| | - Niels K Focke
- Department of Neurology and Epileptology, Hertie Institute for Clinical Brain Research, University Hospital Tübingen, Tübingen, Germany.,Department of Clinical Neurophysiology, University Hospital Göttingen, Göttingen, Germany
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Ostovar R, Hartrumpf M, Kuehnel RU, Schroeter F, Laux M, Erb M, Claus T, Albes JM. Q-PULS, a new quasi-physiological pulsatile extracorporeal model to simulate heart function. Interact Cardiovasc Thorac Surg 2019; 28:819-825. [PMID: 30517653 DOI: 10.1093/icvts/ivy317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 10/13/2018] [Accepted: 10/19/2018] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES The invention of new surgical procedures requires testing at different stages including animal models. To facilitate this process, we have developed a computer-controlled extracorporeal circulation system for testing of an explanted porcine heart simulating a variety of physiological parameters. Mitral valve function can be assessed before and after induced valve insufficiency and after valve repair. Accordingly, techniques and instruments can be modified at early stages of prototype development. METHODS In the diastole, the left atrium is passively filled through the reservoir. The loading pressure of the atrium and flow rates can be widely adjusted. To simulate the systole, a linear motor-driven piston pump promotes volume into the left ventricle and the aorta. An additional circulatory pump compensates for undesired total emptying of the heart chambers. The processor control of the linear pump allows for various settings of flow rate, velocity and even irregular rhythm. Twenty-one isolated porcine hearts were used. The leaflet movement was filmed using a universal serial bus (USB)-probe camera. RESULTS With 80 mm stroke and 1 m/s speed, a volume of 150 ml can be pumped at a heart rate of up to 73 bpm. Cardiac outputs of up to 10.9 l/min can be achieved. Constant visualization and continuous measurements of the pressure gradients before and after the induction of mitral insufficiency and after repair allowed quantitative verification of repair quality under beating-heart conditions. CONCLUSIONS This model allows a controllable pulsation, loading and unloading of a porcine heart in a wide range. Thus, the function of the leaflets and repair results can be qualitatively and quantitatively evaluated under quasiphysiological conditions.
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Affiliation(s)
- Roya Ostovar
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - Martin Hartrumpf
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - Ralf-Uwe Kuehnel
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - Filip Schroeter
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - Magdalena Laux
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - Michael Erb
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - Thomas Claus
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - Johannes Maximilian Albes
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Germany
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Ostovar R, Schroeter F, Kuehnel RU, Erb M, Filip T, Claus T, Albes JM. Endocarditis: An Ever Increasing Problem in Cardiac Surgery. Thorac Cardiovasc Surg 2019; 67:616-623. [PMID: 31042804 DOI: 10.1055/s-0039-1688475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND Endocarditis remains one of the most threatening diagnoses in cardiac surgery and is still increasing. Particularly, device-related as well as prosthetic endocarditis appears to be on the rise. Early mortality and periprocedural complications are high jeopardizing the success of surgical efforts. We looked at the development of the numbers and the distribution of endocarditis in an all-comer analysis. METHODS From 2003 to 2017, 752 patients with endocarditis were transferred to our cardiosurgical institution (mean age 65 ± 13 years; mean logistic EuroSCORE 28.01%; males 74.33%). A total of 89.49% of them were surgically treated; 30.01% redo cases thereof; and 9.17% had been operated previously for acute endocarditis. RESULTS While the total number of cardiosurgical procedures remained relatively stable throughout the years, 20 patients were admitted in 2003 and 79 in 2017 yielding more than fourfold increase (p < 0.001). Early mortality of all patients was 25.1%. Septic emboli occurred in 23.7% and 43.8% cerebral emboli thereof. A significant increase of aortic, mitral, and tricuspid valves involvement was observed (p < 0.001). An increase of device-related endocarditis was also noted (p < 0.001). CONCLUSION Endocarditis remains a serious problem with high early mortality and morbidity. The vast increase of electrophysiological device implantations has resulted in an increase of tricuspid valve involvement. Liberalization of endocarditis prophylaxis, that is, more restrictive use of antibiotics in 2007 may have at least partially contributed to an increase of the individual risk to suffer from acute endocarditis. A renaissance of a stricter endocarditis-prophylaxis may thus be considered.
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Affiliation(s)
- Roya Ostovar
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Filip Schroeter
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Ralf-Uwe Kuehnel
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Michael Erb
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Tomas Filip
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Thomas Claus
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
| | - Johannes M Albes
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School Theodor Fontane, Bernau bei Berlin, Brandenburg, Germany
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Schwarz L, Kreifelts B, Wildgruber D, Erb M, Scheffler K, Ethofer T. Properties of face localizer activations and their application in functional magnetic resonance imaging (fMRI) fingerprinting. PLoS One 2019; 14:e0214997. [PMID: 31013276 PMCID: PMC6478291 DOI: 10.1371/journal.pone.0214997] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 03/25/2019] [Indexed: 11/18/2022] Open
Abstract
Functional localizers are particularly prevalent in functional magnetic resonance imaging (fMRI) studies concerning face processing. In this study, we extend the knowledge on face localizers regarding four important aspects: First, activation differences in occipital and fusiform face areas (OFA/FFA) and amygdala are characterized by increased activation while precuneus and medial prefrontal cortex show decreased deactivation to faces versus control stimuli. The face-selective posterior superior temporal sulcus is a hybrid area exhibiting increased activation within its inferior and decreased deactivation within its superior part. Second, the employed control stimuli can impact on whether a region is classified in group analyses as face-selective or not. We specifically investigated this for recently described cytoarchitectonic subregions of the fusiform cortex (FG-2/FG-4). Averaged activity across voxels in FG-4 was stronger for faces than objects, houses, or landscapes. In FG-2, averaged activity was only significantly stronger in comparison with landscapes, but small peaks within this area were detected for comparison versus objects and houses. Third, reproducibility of individual peak activations is excellent for right FFA and quite good for right OFA, whereas within all other areas it was too low to provide valid information on time-invariant individual peaks. Finally, the fine-grained spatial activation patterns in right OFA and FFA are both time-invariant within each individual and sufficiently different between individuals to enable identification of individual participants with near-perfect precision (fMRI fingerprinting).
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Affiliation(s)
- Lena Schwarz
- University Department of Psychiatry and Psychotherapy, University Hospital Tuebingen, Tuebingen, Germany
- Department for Biomedical Magnetic Resonance, University Hospital Tuebingen, Tuebingen, Germany
- * E-mail:
| | - Benjamin Kreifelts
- University Department of Psychiatry and Psychotherapy, University Hospital Tuebingen, Tuebingen, Germany
| | - Dirk Wildgruber
- University Department of Psychiatry and Psychotherapy, University Hospital Tuebingen, Tuebingen, Germany
| | - Michael Erb
- Department for Biomedical Magnetic Resonance, University Hospital Tuebingen, Tuebingen, Germany
| | - Klaus Scheffler
- Department for Biomedical Magnetic Resonance, University Hospital Tuebingen, Tuebingen, Germany
- Magnetic Resonance Centre, Max-Planck-Institute for Biological Cybernetics, Tuebingen, Germany
| | - Thomas Ethofer
- University Department of Psychiatry and Psychotherapy, University Hospital Tuebingen, Tuebingen, Germany
- Department for Biomedical Magnetic Resonance, University Hospital Tuebingen, Tuebingen, Germany
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Wuschko S, Gugerell A, Chabicovsky M, Hofbauer H, Laggner M, Erb M, Ostler T, Peterbauer A, Suessner S, Demyanets S, Leuschner J, Moser B, Mildner M, Ankersmit HJ. Toxicological testing of allogeneic secretome derived from peripheral mononuclear cells (APOSEC): a novel cell-free therapeutic agent in skin disease. Sci Rep 2019; 9:5598. [PMID: 30944367 PMCID: PMC6447581 DOI: 10.1038/s41598-019-42057-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 03/19/2019] [Indexed: 12/19/2022] Open
Abstract
A cell-free approach using secretomes derived from stem cells or peripheral blood mononuclear cells is an active area of regenerative medicine that holds promise for therapies. Regulatory authorities classify these secretomes as biological medicinal products, and non- clinical safety assessment thus falls under the scope of ICH S6. A secretome of stressed peripheral blood mononuclear cells (APOSEC) was successfully tested in a toxicology program, supporting clinical use of the new drug candidate. Here, to allow for topical, dermal treatment of patients with diabetic foot ulcer, several non-clinical safety studies were performed. Acute toxicity (single dose) and neuropharmacological screening were tested intravenously in a rat model. Risk for skin sensitisation was tested in mice. A 4-week intravenous toxicity study in mice and a 4-week subcutaneous toxicity study in minipigs were conducted to cover the clinical setting and application in a rodent and a non-rodent model. Acute and repeated-dose toxicity studies show that APOSEC administered intravenously and subcutaneously does not involve major toxicities or signs of local intolerance at levels above the intended total human maximal dose of 3.3 U/kg/treatment, 200 U/wound/treatment, and 100 U/cm2/treatment. The non-clinical data support the safe topical use of APOSEC in skin diseases related to deficient wound healing.
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Affiliation(s)
- Silvio Wuschko
- Drug and Chemical Safety Research & Toxicology, Consultant, Alland, Austria
| | - Alfred Gugerell
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,Department of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | | | - Helmut Hofbauer
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Maria Laggner
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | | | | | - Anja Peterbauer
- Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Susanne Suessner
- Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Svitlana Demyanets
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Jost Leuschner
- LPT - Laboratory of Pharmacology and Toxicology GmbH & Co KG, Hamburg, Germany
| | - Bernhard Moser
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Michael Mildner
- Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Hendrik J Ankersmit
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria. .,FFG Projects "APOSEC" 852748 and 862068, Medical University Vienna, Vienna, Austria.
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Koch K, Stegmaier S, Schwarz L, Erb M, Thomas M, Scheffler K, Wildgruber D, Nieratschker V, Ethofer T. CACNA1C risk variant affects microstructural connectivity of the amygdala. Neuroimage Clin 2019; 22:101774. [PMID: 30909026 PMCID: PMC6434179 DOI: 10.1016/j.nicl.2019.101774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/29/2019] [Accepted: 03/10/2019] [Indexed: 11/28/2022]
Abstract
Deficits in perception of emotional prosody have been described in patients with affective disorders at behavioral and neural level. In the current study, we use an imaging genetics approach to examine the impact of CACNA1C, one of the most promising genetic risk factors for psychiatric disorders, on prosody processing on a behavioral, functional and microstructural level. Using functional magnetic resonance imaging (fMRI) and diffusion tensor imaging (DTI) we examined key areas involved in prosody processing, i.e. the amygdala and voice areas, in a healthy population. We found stronger activation to emotional than neutral prosody in the voice areas and the amygdala, but CACNA1C rs1006737 genotype had no influence on fMRI activity. However, significant microstructural differences (i.e. mean diffusivity) between CACNA1C rs1006737 risk allele carriers and non carriers were found in the amygdala, but not the voice areas. These modifications in brain architecture associated with CACNA1C might reflect a neurobiological marker predisposing to affective disorders and concomitant alterations in emotion perception.
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Affiliation(s)
- Katharina Koch
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany.
| | - Sophia Stegmaier
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Lena Schwarz
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Michael Erb
- Department of Biomedical Resonance, University of Tuebingen, Tuebingen, Germany
| | - Mara Thomas
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Klaus Scheffler
- Department of Biomedical Resonance, University of Tuebingen, Tuebingen, Germany; Max-Planck-Institute for Biological Cybernetics, University of Tuebingen, Tuebingen, Germany
| | - Dirk Wildgruber
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Vanessa Nieratschker
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany; Werner Reichardt Center for Integrative Neuroscience, University of Tuebingen, Tuebingen, Germany
| | - Thomas Ethofer
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany; Department of Biomedical Resonance, University of Tuebingen, Tuebingen, Germany
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Ostovar R, Claus T, Hartrumpf M, Erb M, Zytowski M, Schröter F, Laux M, Albes M. MitraClip Implantation: A Word of Caution Regarding an All Too Liberal Indication and Delayed Referral to Surgery in Case of Failure. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- R. Ostovar
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - T. Claus
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - M. Hartrumpf
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - M. Erb
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - M. Zytowski
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - F. Schröter
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - M. Laux
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - M. Albes
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
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Ostovar R, Laux M, Schröter F, Braun C, Hartrumpf M, Kuehnel RU, Erb M, Albes M. Immunosuppressive Agents and Aortic Aneurysm: Real Correlation or Mere Coincidence? Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- R. Ostovar
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - M. Laux
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - F. Schröter
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - C. Braun
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - M. Hartrumpf
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - R.-U. Kuehnel
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - M. Erb
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
| | - M. Albes
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau bei Berlin, Germany
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Ostovar R, Kuehnel RU, Schröter F, Hartrumpf M, Erb M, Claus T, Albes M. Proper Selection of the Transcatheter Valve in Mitral Valve-in-Valve Procedures Is Key to Success. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- R. Ostovar
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau b. Berlin, Germany
| | - R.-U. Kuehnel
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau b. Berlin, Germany
| | - F. Schröter
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau b. Berlin, Germany
| | - M. Hartrumpf
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau b. Berlin, Germany
| | - M. Erb
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau b. Berlin, Germany
| | - T. Claus
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau b. Berlin, Germany
| | - M. Albes
- Department of Cardiovascular Surgery, Heart Center Brandenburg, Brandenburg Medical School, Bernau b. Berlin, Germany
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40
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Li B, Förster C, Robert CAM, Züst T, Hu L, Machado RAR, Berset JD, Handrick V, Knauer T, Hensel G, Chen W, Kumlehn J, Yang P, Keller B, Gershenzon J, Jander G, Köllner TG, Erb M. Convergent evolution of a metabolic switch between aphid and caterpillar resistance in cereals. Sci Adv 2018; 4:eaat6797. [PMID: 30525102 PMCID: PMC6281429 DOI: 10.1126/sciadv.aat6797] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 11/07/2018] [Indexed: 05/19/2023]
Abstract
Tailoring defense responses to different attackers is important for plant performance. Plants can use secondary metabolites with dual functions in resistance and defense signaling to mount herbivore-specific responses. To date, the specificity and evolution of this mechanism are unclear. Here, we studied the functional architecture, specificity, and genetic basis of defense regulation by benzoxazinoids in cereals. We document that DIMBOA-Glc induces callose as an aphid resistance factor in wheat. O-methylation of DIMBOA-Glc to HDMBOA-Glc increases plant resistance to caterpillars but reduces callose inducibility and resistance to aphids. DIMBOA-Glc induces callose in wheat and maize, but not in Arabidopsis, while the glucosinolate 4MO-I3M does the opposite. We identify a wheat O-methyltransferase (TaBX10) that is induced by caterpillar feeding and converts DIMBOA-Glc to HDMBOA-Glc in vitro. While the core pathway of benzoxazinoid biosynthesis is conserved between wheat and maize, the wheat genome does not contain close homologs of the maize DIMBOA-Glc O-methyltransferase genes, and TaBx10 is only distantly related. Thus, the functional architecture of herbivore-specific defense regulation is similar in maize and wheat, but the regulating biosynthetic genes likely evolved separately. This study shows how two different cereal species independently achieved herbivore-specific defense activation by regulating secondary metabolite production.
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Affiliation(s)
- B. Li
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - C. Förster
- Max Planck Institute for Chemical Ecology, Jena, Germany
| | - C. A. M. Robert
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - T. Züst
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - L. Hu
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - R. A. R. Machado
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - J.-D. Berset
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - V. Handrick
- Max Planck Institute for Chemical Ecology, Jena, Germany
| | - T. Knauer
- Max Planck Institute for Chemical Ecology, Jena, Germany
| | - G. Hensel
- Leibniz Institute of Plant Genetics and Crop Plant Research, Gatersleben, Germany
| | - W. Chen
- Leibniz Institute of Plant Genetics and Crop Plant Research, Gatersleben, Germany
| | - J. Kumlehn
- Leibniz Institute of Plant Genetics and Crop Plant Research, Gatersleben, Germany
| | - P. Yang
- Department of Plant and Microbial Biology, University of Zürich, Zürich, Switzerland
| | - B. Keller
- Department of Plant and Microbial Biology, University of Zürich, Zürich, Switzerland
| | - J. Gershenzon
- Max Planck Institute for Chemical Ecology, Jena, Germany
| | - G. Jander
- Boyce Thompson Institute, Ithaca, NY, USA
| | - T. G. Köllner
- Max Planck Institute for Chemical Ecology, Jena, Germany
| | - M. Erb
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
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41
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Brodt S, Gais S, Beck J, Erb M, Scheffler K, Schönauer M. Fast track to the neocortex: A memory engram in the posterior parietal cortex. Science 2018; 362:1045-1048. [PMID: 30498125 DOI: 10.1126/science.aau2528] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 10/10/2018] [Indexed: 12/11/2022]
Abstract
Models of systems memory consolidation postulate a fast-learning hippocampal store and a slowly developing, stable neocortical store. Accordingly, early neocortical contributions to memory are deemed to reflect a hippocampus-driven online reinstatement of encoding activity. In contrast, we found that learning rapidly engenders an enduring memory engram in the human posterior parietal cortex. We assessed microstructural plasticity via diffusion-weighted magnetic resonance imaging as well as functional brain activity in an object–location learning task. We detected neocortical plasticity as early as 1 hour after learning and found that it was learning specific, enabled correct recall, and overlapped with memory-related functional activity. These microstructural changes persisted over 12 hours. Our results suggest that new traces can be rapidly encoded into the parietal cortex, challenging views of a slow-learning neocortex.
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Affiliation(s)
- S. Brodt
- Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Tübingen, Germany
- Max-Planck-Institute for Biological Cybernetics, Tübingen, Germany
| | - S. Gais
- Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Tübingen, Germany
| | - J. Beck
- Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Tübingen, Germany
| | - M. Erb
- Max-Planck-Institute for Biological Cybernetics, Tübingen, Germany
- Biomedical Magnetic Resonance, Universitätsklinikum Tübingen, Tübingen, Germany
| | - K. Scheffler
- Max-Planck-Institute for Biological Cybernetics, Tübingen, Germany
- Biomedical Magnetic Resonance, Universitätsklinikum Tübingen, Tübingen, Germany
| | - M. Schönauer
- Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Tübingen, Germany
- Max-Planck-Institute for Biological Cybernetics, Tübingen, Germany
- Princeton Neuroscience Institute, Princeton University, Princeton, NJ, USA
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42
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Karle KN, Ethofer T, Jacob H, Brück C, Erb M, Lotze M, Nizielski S, Schütz A, Wildgruber D, Kreifelts B. Neurobiological correlates of emotional intelligence in voice and face perception networks. Soc Cogn Affect Neurosci 2018; 13:233-244. [PMID: 29365199 PMCID: PMC5827352 DOI: 10.1093/scan/nsy001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 01/07/2018] [Indexed: 01/27/2023] Open
Abstract
Facial expressions and voice modulations are among the most important communicational signals to convey emotional information. The ability to correctly interpret this information is highly relevant for successful social interaction and represents an integral component of emotional competencies that have been conceptualized under the term emotional intelligence. Here, we investigated the relationship of emotional intelligence as measured with the Salovey-Caruso-Emotional-Intelligence-Test (MSCEIT) with cerebral voice and face processing using functional and structural magnetic resonance imaging. MSCEIT scores were positively correlated with increased voice-sensitivity and gray matter volume of the insula accompanied by voice-sensitivity enhanced connectivity between the insula and the temporal voice area, indicating generally increased salience of voices. Conversely, in the face processing system, higher MSCEIT scores were associated with decreased face-sensitivity and gray matter volume of the fusiform face area. Taken together, these findings point to an alteration in the balance of cerebral voice and face processing systems in the form of an attenuated face-vs-voice bias as one potential factor underpinning emotional intelligence.
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Affiliation(s)
- Kathrin N Karle
- Department of Psychiatry and Psychotherapy, University of Tübingen, 72076 Tübingen, Germany
| | - Thomas Ethofer
- Department of Psychiatry and Psychotherapy, University of Tübingen, 72076 Tübingen, Germany.,Department for Biomedical Magnetic Resonance, University of Tübingen, 72076 Tübingen, Germany
| | - Heike Jacob
- Department of Psychiatry and Psychotherapy, University of Tübingen, 72076 Tübingen, Germany
| | - Carolin Brück
- Department of Psychiatry and Psychotherapy, University of Tübingen, 72076 Tübingen, Germany
| | - Michael Erb
- Department for Biomedical Magnetic Resonance, University of Tübingen, 72076 Tübingen, Germany
| | - Martin Lotze
- Functional Imaging Group, Department for Diagnostic Radiology and Neuroradiology, University of Greifswald, 17475 Greifswald, Germany
| | - Sophia Nizielski
- Department of Psychology, Technical University Chemnitz, 09111 Chemnitz, Germany
| | - Astrid Schütz
- Department of Psychology, University of Bamberg, 96045 Bamberg, Germany
| | - Dirk Wildgruber
- Department of Psychiatry and Psychotherapy, University of Tübingen, 72076 Tübingen, Germany
| | - Benjamin Kreifelts
- Department of Psychiatry and Psychotherapy, University of Tübingen, 72076 Tübingen, Germany
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43
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Schwartz M, Martirosian P, Steidle G, Erb M, Stemmer A, Yang B, Schick F. Volumetric assessment of spontaneous mechanical activities by simultaneous multi-slice MRI techniques with correlation to muscle fiber orientation. NMR Biomed 2018; 31:e3959. [PMID: 30067885 DOI: 10.1002/nbm.3959] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 05/16/2018] [Accepted: 05/18/2018] [Indexed: 06/08/2023]
Abstract
The purpose of this work was assessment of volumetric characteristics of spontaneous mechanical activities in musculature (SMAMs) by diffusion-weighted simultaneous multi-slice (DW-SMS) imaging and spatial correlation to anatomical structure, as revealed by fusion to fiber tractographic information derived from diffusion-tensor imaging (DTI). The feasibility of using DW-SMS to image spontaneous events in human musculature was assessed by phantom measurements. Series of DW-SMS images and DTI datasets were recorded from the resting calf of three human subjects. Simultaneously recorded SMAMs in multiple slices were analyzed regarding spatial extension by the Kolmogorov-Smirnov test. Direct correlation of spatial distribution of SMAMs and fiber orientation was investigated by mapping of muscle fibers to multi-slice SMAM datasets. The DW-SMS strategy allows simultaneous assessment of SMAMs in several slices of resting skeletal musculature, since 73.9% of SMAM-affected volumes have shown SMAMs in multiple DW-SMS slices. Spatial extension of SMAMs was highly correlated over different simultaneously recorded DW-SMS slices, and affected areas followed the orientation of muscle fibers with a connectivity ratio up to 57.18 ± 14.80% based on event count and connectivity count maps. In 89.2% of all SMAM-affected datasets muscle fiber connectivity was shown in at least two adjacent slices. Direct correlation between SMAMs in human lower leg musculature and underlying anatomical structure was revealed by high muscle fiber connectivity (89.2%). SMAMs have shown a wide distribution along the longitudinal muscle direction (73.9% in multiple DW-SMS slices) with direct involvement of muscle fibers. Correlation between SMAMs in multiple DW-SMS slices and crossing muscular fiber tracts provides evidence that SMAMs result from physiological processes in musculature. Fusion of DW-SMS with DTI facilitates non-invasive studies of muscle fiber involvement in SMAMs in resting muscle.
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Affiliation(s)
- Martin Schwartz
- Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University of Tübingen, Tübingen, Germany
- Institute of Signal Processing and System Theory, University of Stuttgart, Stuttgart, Germany
| | - Petros Martirosian
- Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University of Tübingen, Tübingen, Germany
| | - Günter Steidle
- Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University of Tübingen, Tübingen, Germany
| | - Michael Erb
- Biomedical Magnetic Resonance, University of Tübingen, Tübingen, Germany
| | | | - Bin Yang
- Institute of Signal Processing and System Theory, University of Stuttgart, Stuttgart, Germany
| | - Fritz Schick
- Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University of Tübingen, Tübingen, Germany
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44
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Sokolov AA, Zeidman P, Erb M, Ryvlin P, Pavlova MA, Friston KJ. Linking structural and effective brain connectivity: structurally informed Parametric Empirical Bayes (si-PEB). Brain Struct Funct 2018; 224:205-217. [PMID: 30302538 PMCID: PMC6373362 DOI: 10.1007/s00429-018-1760-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 09/21/2018] [Indexed: 12/13/2022]
Abstract
Despite the potential for better understanding functional neuroanatomy, the complex relationship between neuroimaging measures of brain structure and function has confounded integrative, multimodal analyses of brain connectivity. This is particularly true for task-related effective connectivity, which describes the causal influences between neuronal populations. Here, we assess whether measures of structural connectivity may usefully inform estimates of effective connectivity in larger scale brain networks. To this end, we introduce an integrative approach, capitalising on two recent statistical advances: Parametric Empirical Bayes, which provides group-level estimates of effective connectivity, and Bayesian model reduction, which enables rapid comparison of competing models. Crucially, we show that structural priors derived from high angular resolution diffusion imaging on a dynamic causal model of a 12-region network-based on functional MRI data from the same subjects-substantially improve model evidence (posterior probability 1.00). This provides definitive evidence that structural and effective connectivity depend upon each other in mediating distributed, large-scale interactions in the brain. Furthermore, this work offers novel perspectives for understanding normal brain architecture and its disintegration in clinical conditions.
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Affiliation(s)
- Arseny A Sokolov
- Wellcome Centre for Human Neuroimaging, Institute of Neurology, University College London (UCL), London, WC1N 3BG, UK. .,Service de Neurologie, Département des Neurosciences Cliniques, Centre Hospitalier Universitaire Vaudois (CHUV), 1011, Lausanne, Switzerland.
| | - Peter Zeidman
- Wellcome Centre for Human Neuroimaging, Institute of Neurology, University College London (UCL), London, WC1N 3BG, UK
| | - Michael Erb
- Department of Biomedical Magnetic Resonance, Department of Radiology, University of Tübingen Medical School, 72076, Tübingen, Germany
| | - Philippe Ryvlin
- Service de Neurologie, Département des Neurosciences Cliniques, Centre Hospitalier Universitaire Vaudois (CHUV), 1011, Lausanne, Switzerland
| | - Marina A Pavlova
- Department of Psychiatry and Psychotherapy, University of Tübingen Medical School, 72076, Tübingen, Germany
| | - Karl J Friston
- Wellcome Centre for Human Neuroimaging, Institute of Neurology, University College London (UCL), London, WC1N 3BG, UK
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45
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Klamer S, Ethofer T, Torner F, Sahib AK, Elshahabi A, Marquetand J, Martin P, Lerche H, Erb M, Focke NK. Unravelling the brain networks driving spike-wave discharges in genetic generalized epilepsy-common patterns and individual differences. Epilepsia Open 2018; 3:485-494. [PMID: 30525117 PMCID: PMC6276776 DOI: 10.1002/epi4.12252] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2018] [Indexed: 11/08/2022] Open
Abstract
Objective Genetic generalized epilepsies (GGEs) are characterized by generalized spike-wave discharges (GSWDs) in electroencephalography (EEG) recordings without underlying structural brain lesions. The origin of the epileptic activity remains unclear, although several studies have reported involvement of thalamus and default mode network (DMN). The aim of the current study was to investigate the networks involved in the generation and temporal evolution of GSWDs to elucidate the origin and propagation of the underlying generalized epileptic activity. Methods We examined 12 patients with GGE and GSWDs using EEG-functional magnetic resonance imaging (fMRI) and identified involved brain areas on the basis of a classical general linear model (GLM) analysis. The activation time courses of these areas were further investigated to reveal their temporal sequence of activations and deactivations. Dynamic causal modeling (DCM) was used to determine the generator of GSWDs in GGE. Results We observed activity changes in the thalamus, DMN, dorsal attention network (DAN), salience network (SN), basal ganglia, dorsolateral prefrontal cortex, and motor cortex with supplementary motor area, however, with a certain heterogeneity between patients. Investigation of the temporal sequence of activity changes showed deactivations in the DMN and DAN and activations in the SN and thalamus preceding the onset of GSWDs on EEG by several seconds. DCM analysis indicated that the DMN gates GSWDs in GGE. Significance The observed interplay between DMN, DAN, SN, and thalamus may indicate a downregulation of consciousness. The DMN seems to play a leading role as a driving force behind these changes. Overall, however, there were also clear differences in activation patterns between patients, reflecting a certain heterogeneity in this cohort of GGE patients.
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Affiliation(s)
- Silke Klamer
- Department of Neurology and Epileptology Hertie-Institute for Clinical Brain Research University of Tübingen Tübingen Germany
| | - Thomas Ethofer
- Department of Biomedical Magnetic Resonance University of Tübingen Tübingen Germany.,Department of Psychiatry and Psychotherapy University of Tübingen Tübingen Germany.,Werner Reichardt Centre for Integrative Neuroscience Tübingen Germany
| | - Franziska Torner
- Department of Neurology and Epileptology Hertie-Institute for Clinical Brain Research University of Tübingen Tübingen Germany
| | - Ashish Kaul Sahib
- Department of Neurology and Epileptology Hertie-Institute for Clinical Brain Research University of Tübingen Tübingen Germany.,Department of Biomedical Magnetic Resonance University of Tübingen Tübingen Germany.,Werner Reichardt Centre for Integrative Neuroscience Tübingen Germany
| | - Adham Elshahabi
- Department of Neurology and Epileptology Hertie-Institute for Clinical Brain Research University of Tübingen Tübingen Germany.,Werner Reichardt Centre for Integrative Neuroscience Tübingen Germany.,MEG Center University of Tübingen Tübingen Germany
| | - Justus Marquetand
- Department of Neurology and Epileptology Hertie-Institute for Clinical Brain Research University of Tübingen Tübingen Germany
| | - Pascal Martin
- Department of Neurology and Epileptology Hertie-Institute for Clinical Brain Research University of Tübingen Tübingen Germany
| | - Holger Lerche
- Department of Neurology and Epileptology Hertie-Institute for Clinical Brain Research University of Tübingen Tübingen Germany.,Werner Reichardt Centre for Integrative Neuroscience Tübingen Germany
| | - Michael Erb
- Department of Biomedical Magnetic Resonance University of Tübingen Tübingen Germany
| | - Niels K Focke
- Department of Neurology and Epileptology Hertie-Institute for Clinical Brain Research University of Tübingen Tübingen Germany.,Werner Reichardt Centre for Integrative Neuroscience Tübingen Germany
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46
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Hu L, Mateo P, Ye M, Zhang X, Berset JD, Handrick V, Radisch D, Grabe V, Köllner TG, Gershenzon J, Robert CAM, Erb M. Plant iron acquisition strategy exploited by an insect herbivore. Science 2018; 361:694-697. [PMID: 30115808 DOI: 10.1126/science.aat4082] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 06/19/2018] [Indexed: 12/24/2022]
Abstract
Insect herbivores depend on their host plants to acquire macro- and micronutrients. Here we asked how a specialist herbivore and damaging maize pest, the western corn rootworm, finds and accesses plant-derived micronutrients. We show that the root-feeding larvae use complexes between iron and benzoxazinoid secondary metabolites to identify maize as a host, to forage within the maize root system, and to increase their growth. Maize plants use these same benzoxazinoids for protection against generalist herbivores and, as shown here, for iron uptake. We identify an iron transporter that allows the corn rootworm to benefit from complexes between iron and benzoxazinoids. Thus, foraging for an essential plant-derived complex between a micronutrient and a secondary metabolite shapes the interaction between maize and a specialist herbivore.
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Affiliation(s)
- L Hu
- Institute of Plant Sciences, University of Bern, Switzerland
| | - P Mateo
- Institute of Plant Sciences, University of Bern, Switzerland.,Neuchâtel Platform of Analytical Chemistry, University of Neuchâtel, Switzerland
| | - M Ye
- Institute of Plant Sciences, University of Bern, Switzerland
| | - X Zhang
- Institute of Plant Sciences, University of Bern, Switzerland
| | - J D Berset
- Institute of Plant Sciences, University of Bern, Switzerland
| | - V Handrick
- Max Planck Institute for Chemical Ecology, Jena, Germany
| | - D Radisch
- Max Planck Institute for Chemical Ecology, Jena, Germany
| | - V Grabe
- Max Planck Institute for Chemical Ecology, Jena, Germany
| | - T G Köllner
- Max Planck Institute for Chemical Ecology, Jena, Germany
| | - J Gershenzon
- Max Planck Institute for Chemical Ecology, Jena, Germany
| | - C A M Robert
- Institute of Plant Sciences, University of Bern, Switzerland.
| | - M Erb
- Institute of Plant Sciences, University of Bern, Switzerland.
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47
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Laux ML, Erb M, Hoelschermann F, Albes JM. Successful Surgical Abdominal Aortic Debranching Preceding Stent Graft Implantation: A Case Report. Thorac Cardiovasc Surg Rep 2018; 7:e24-e26. [PMID: 29977734 PMCID: PMC6023716 DOI: 10.1055/s-0038-1660834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 05/02/2018] [Indexed: 11/17/2022] Open
Abstract
Background
Acute endovascular aneurysm repair with stent grafts (thoracic endovascular aortic repair [TEVAR]) is safe and feasible.
Case Description
A 64-year-old female presented with a perforated aortic aneurysm of the thoracic descending aorta. Primary TEVAR resulted in good management of the perforation but a type Ib endoleakage remained postoperatively. To place another stent, abdominal debranching with saphenous vein bypass to the celiac trunk was required. In the same session, another endograft was inserted successfully.
Conclusion
Abdominal debranching is a safe alternative to open aortic repair in acute thoracic and abdominal aneurysms, instead of waiting for a custom-made device.
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Affiliation(s)
- Magdalena L Laux
- Department of Cardiovascular Surgery, Brandenburg Heart Center, University Hospital, Brandenburg Medical School Theodor Fontane, Bernau, Germany
| | - Michael Erb
- Department of Cardiovascular Surgery, Brandenburg Heart Center, University Hospital, Brandenburg Medical School Theodor Fontane, Bernau, Germany
| | | | - Johannes M Albes
- Department of Cardiovascular Surgery, Brandenburg Heart Center, University Hospital, Brandenburg Medical School Theodor Fontane, Bernau, Germany
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48
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Pavlova MA, Erb M, Hagberg GE, Loureiro J, Sokolov AN, Scheffler K. "Wrong Way Up": Temporal and Spatial Dynamics of the Networks for Body Motion Processing at 9.4 T. Cereb Cortex 2018; 27:5318-5330. [PMID: 28981613 DOI: 10.1093/cercor/bhx151] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Indexed: 01/17/2023] Open
Abstract
Body motion delivers a wealth of socially relevant information. Yet display inversion severely impedes biological motion (BM) processing. It is largely unknown how the brain circuits for BM are affected by display inversion. As upright and upside-down point-light BM displays are similar, we addressed this issue by using ultrahigh field functional MRI at 9.4 T providing for high sensitivity and spatial resolution. Whole-brain analysis along with exploration of the temporal dynamics of the blood-oxygen-level-dependent response reveals that in the left hemisphere, inverted BM activates anterior networks likely engaged in decision making and cognitive control, whereas readily recognizable upright BM activates posterior areas solely. In the right hemisphere, multiple networks are activated in response to upright BM as compared with scarce activation to inversion. With identical visual input with display inversion, a large-scale network in the right hemisphere is detected in perceivers who do not constantly interpret displays as shown the "wrong way up." For the first time, we uncover (1) (multi)functional involvement of each region in the networks underpinning BM processing and (2) large-scale ensembles of regions playing in unison with distinct temporal dynamics. The outcome sheds light on the neural circuits underlying BM processing as an essential part of the social brain.
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Affiliation(s)
- Marina A Pavlova
- Department of Biomedical Magnetic Resonance, Medical School, Eberhard Karls University of Tübingen.,Department of Psychiatry and Psychotherapy, Medical School, Eberhard Karls University of Tübingen
| | - Michael Erb
- Department of Biomedical Magnetic Resonance, Medical School, Eberhard Karls University of Tübingen.,High-Field Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics
| | - Gisela E Hagberg
- Department of Biomedical Magnetic Resonance, Medical School, Eberhard Karls University of Tübingen.,High-Field Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics
| | - Joana Loureiro
- Department of Biomedical Magnetic Resonance, Medical School, Eberhard Karls University of Tübingen.,High-Field Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics
| | - Alexander N Sokolov
- Women's Health Research Institute, Department of Women's Health, Medical School, Eberhard Karls University of Tübingen, Tübingen 72076, Germany
| | - Klaus Scheffler
- Department of Biomedical Magnetic Resonance, Medical School, Eberhard Karls University of Tübingen.,High-Field Magnetic Resonance Center, Max Planck Institute for Biological Cybernetics
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49
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Ostovar R, Kuehnel RU, Erb M, Hartrumpf M, Claus T, Haase R, Albes JM. How Do Transcatheter Heart Valves Fit in Mitral Annuloplasty Rings and Which Combination Can be Recommended? Thorac Cardiovasc Surg 2018; 67:257-265. [PMID: 29739020 DOI: 10.1055/s-0038-1645867] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
BACKGROUND Transcatheter heart valve (THV) as valve-in-ring is increasingly used in the mitral position. Semi-rigid rings may serve as a more appropriate scaffold for proper anchoring of a THV as they may change from their oval to a round shape thereby fitting to the implanted THV. METHODS One rigid and five semi-rigid rings of four manufacturers, Edwards Physio I and II, Sorin 3D Memo, Medtronic Simulus, and St. Jude Medical (SJM) Saddle and SJM Sequin, with sizes 28 to 36 mm and Edwards Sapien III THV 23, 26, and 29 mm were used. Preevaluation comprised insertion/inflation of the THV into the ring and visual inspection for the paravalvular gap ≥ 4 mm2. Only valves not showing paravalvular gap were then submitted to hemodynamic evaluation with a pulse duplicator. Cusp movement was assessed with a high-speed-camera. Mean transvalvular gradients (TVGs) were measured. RESULTS SJM Saddle ring of all sizes and SJM Sequin ring 34 showed marked gaps combined with all THV sizes, thus not undergoing hemodynamic testing. It was further shown that ring sizes ≥ 36 mm did not allow for a proper fit of even the largest THV into the ring of all the manufacturers and were consequently not hemodynamically evaluated. The 23 mm THV was too small for any ring size. The lowest gradients were achieved with the 26 mm THV in 30 and 32 mm and the 29 mm THV in 32 and 34 mm rings. CONCLUSION Not all currently available annuloplasty rings are ideal scaffolds for THV placement. It appears that a more proper fit can be achieved with semi-rigid rings than with rigid ones. Note that 23 mm THV appeared to be too small for an adequate anchoring in even the smallest available ring. Thus, 26 mm as well as 29 mm THV fit properly in ring sizes between 28 and 34 mm. Surgeons may consider to choose from those ring brands and sizes which allow for good placement of a THV in view of possible valve degeneration in the later course.
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Affiliation(s)
- Roya Ostovar
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Brandenburg, Germany
| | - Ralf-Uwe Kuehnel
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Brandenburg, Germany
| | - Michael Erb
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Brandenburg, Germany
| | - Martin Hartrumpf
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Brandenburg, Germany
| | - Thomas Claus
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Brandenburg, Germany
| | - Robert Haase
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Brandenburg, Germany
| | - Johannes M Albes
- Department of Cardiovascular Surgery, Heart Center Brandenburg, University Hospital, Brandenburg Medical School, Bernau bei Berlin, Brandenburg, Germany
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Koch K, Stegmaier S, Schwarz L, Erb M, Reinl M, Scheffler K, Wildgruber D, Ethofer T. Neural correlates of processing emotional prosody in unipolar depression. Hum Brain Mapp 2018; 39:3419-3427. [PMID: 29682814 DOI: 10.1002/hbm.24185] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 03/15/2018] [Accepted: 04/09/2018] [Indexed: 12/11/2022] Open
Abstract
Major depressive disorder (MDD) is characterized by a biased emotion perception. In the auditory domain, MDD patients have been shown to exhibit attenuated processing of positive emotions expressed by speech melody (prosody). So far, no neuroimaging studies examining the neural basis of altered processing of emotional prosody in MDD are available. In this study, we addressed this issue by examining the emotion bias in MDD during evaluation of happy, neutral, and angry prosodic stimuli on a five-point Likert scale during functional magnetic resonance imaging (fMRI). As expected, MDD patients rated happy prosody less intense than healthy controls (HC). At neural level, stronger activation in the middle superior temporal gyrus (STG) and the amygdala was found in all participants when processing emotional as compared to neutral prosody. MDD patients exhibited an increased activation of the amygdala during processing prosody irrespective of valence while no significant differences between groups were found for the STG, indicating that altered processing of prosodic emotions in MDD occurs rather within the amygdala than in auditory areas. Concurring with the valence-specific behavioral effect of attenuated evaluation of positive prosodic stimuli, activation within the left amygdala of MDD patients correlated with ratings of happy, but not neutral or angry prosody. Our study provides first insights in the neural basis of reduced experience of positive information and an abnormally increased amygdala activity during prosody processing.
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Affiliation(s)
- Katharina Koch
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Sophia Stegmaier
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Lena Schwarz
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Michael Erb
- Department of Biomedical Resonance, University of Tuebingen, Tuebingen, Germany
| | - Maren Reinl
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Klaus Scheffler
- Department of Biomedical Resonance, University of Tuebingen, Tuebingen, Germany.,Max-Planck-Institute for Biological Cybernetics, University of Tuebingen, Tuebingen, Germany
| | - Dirk Wildgruber
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany
| | - Thomas Ethofer
- Department of General Psychiatry, University of Tuebingen, Tuebingen, Germany.,Department of Biomedical Resonance, University of Tuebingen, Tuebingen, Germany
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