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Rodriguez-Ayllon M, Neumann A, Hofman A, Vernooij MW, Neitzel J. The bidirectional relationship between brain structure and physical activity: A longitudinal analysis in the UK Biobank. Neurobiol Aging 2024; 138:1-9. [PMID: 38460471 DOI: 10.1016/j.neurobiolaging.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 02/19/2024] [Accepted: 03/01/2024] [Indexed: 03/11/2024]
Abstract
Physical activity is a protective factor against brain atrophy, while loss of brain volume could also be a determinant of physical activity. Therefore, we aimed to explore the bidirectional association of physical activity with brain structures in middle-aged and older adults from the UK Biobank. Overall, 3027 participants (62.45 ± 7.27 years old, 51.3% females) had data at two time points. Hippocampal volume was associated with total (β=0.048, pFDR=0.016) and household (β=0.075, pFDR<0.001) physical activity. Global fractional anisotropy (β=0.042, pFDR=0.028) was also associated with household physical activity. In the opposite direction, walking was negatively associated with white matter volume (β=-0.026, pFDR=0.008). All these associations were confirmed by the linear mixed models. Interestingly, sports at baseline were linked to hippocampal and frontal cortex volumes at follow-up but these associations disappeared after adjusting for multiple comparisons (pall>0.104). In conclusion, we found more consistent evidence that a healthier brain structure predicted higher physical activity levels than for the inverse, more established relationship.
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Affiliation(s)
- María Rodriguez-Ayllon
- Department of Epidemiology, Erasmus MC University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Alexander Neumann
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Amy Hofman
- Department of Epidemiology, Erasmus MC University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Meike W Vernooij
- Department of Epidemiology, Erasmus MC University Medical Center Rotterdam, Rotterdam, the Netherlands; Department of Radiology and Nuclear Medicine, Erasmus MC University Medical Center Rotterdam, the Netherlands.
| | - Julia Neitzel
- Department of Epidemiology, Erasmus MC University Medical Center Rotterdam, Rotterdam, the Netherlands; Department of Radiology and Nuclear Medicine, Erasmus MC University Medical Center Rotterdam, the Netherlands; Department of Epidemiology, Harvard T.H Chan School of Public Health, Boston, MA, United States
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2
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van Houtum LAEM, Baaré WFC, Beckmann CF, Castro-Fornieles J, Cecil CAM, Dittrich J, Ebdrup BH, Fegert JM, Havdahl A, Hillegers MHJ, Kalisch R, Kushner SA, Mansuy IM, Mežinska S, Moreno C, Muetzel RL, Neumann A, Nordentoft M, Pingault JB, Preisig M, Raballo A, Saunders J, Sprooten E, Sugranyes G, Tiemeier H, van Woerden GM, Vandeleur CL, van Haren NEM. Running in the FAMILY: understanding and predicting the intergenerational transmission of mental illness. Eur Child Adolesc Psychiatry 2024:10.1007/s00787-024-02423-9. [PMID: 38613677 DOI: 10.1007/s00787-024-02423-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 03/15/2024] [Indexed: 04/15/2024]
Abstract
Over 50% of children with a parent with severe mental illness will develop mental illness by early adulthood. However, intergenerational transmission of risk for mental illness in one's children is insufficiently considered in clinical practice, nor is it sufficiently utilised into diagnostics and care for children of ill parents. This leads to delays in diagnosing young offspring and missed opportunities for protective actions and resilience strengthening. Prior twin, family, and adoption studies suggest that the aetiology of mental illness is governed by a complex interplay of genetic and environmental factors, potentially mediated by changes in epigenetic programming and brain development. However, how these factors ultimately materialise into mental disorders remains unclear. Here, we present the FAMILY consortium, an interdisciplinary, multimodal (e.g., (epi)genetics, neuroimaging, environment, behaviour), multilevel (e.g., individual-level, family-level), and multisite study funded by a European Union Horizon-Staying-Healthy-2021 grant. FAMILY focuses on understanding and prediction of intergenerational transmission of mental illness, using genetically informed causal inference, multimodal normative prediction, and animal modelling. Moreover, FAMILY applies methods from social sciences to map social and ethical consequences of risk prediction to prepare clinical practice for future implementation. FAMILY aims to deliver: (i) new discoveries clarifying the aetiology of mental illness and the process of resilience, thereby providing new targets for prevention and intervention studies; (ii) a risk prediction model within a normative modelling framework to predict who is at risk for developing mental illness; and (iii) insight into social and ethical issues related to risk prediction to inform clinical guidelines.
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Affiliation(s)
- Lisanne A E M van Houtum
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre-Sophia, Rotterdam, The Netherlands
| | - William F C Baaré
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital-Amager and Hvidovre, Copenhagen, Denmark
| | - Christian F Beckmann
- Centre for Functional MRI of the Brain, Wellcome Centre for Integrative Neuroimaging, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
- Department of Cognitive Neuroscience, Radboud University Medical Centre, Nijmegen, the Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, the Netherlands
| | - Josefina Castro-Fornieles
- Department of Child and Adolescent Psychiatry and Psychology, 2021SGR01319, Institut Clinic de Neurociències, Hospital Clínic de Barcelona, FCRB-IDIBAPS, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Spain
| | - Charlotte A M Cecil
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre-Sophia, Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, the Netherlands
| | | | - Bjørn H Ebdrup
- Center for Neuropsychiatric Schizophrenia Research and Centre for Clinical Intervention and Neuropsychiatric Schizophrenia Research, Mental Health Centre Glostrup, University of Copenhagen, Glostrup, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jörg M Fegert
- President European Society for Child and Adolescent Psychiatry (ESCAP), Brussels, Belgium
- Department of Child and Adolescent Psychiatry/Psychotherapy, University Hospital Ulm, Ulm, Germany
| | - Alexandra Havdahl
- PsychGen Centre for Genetic Epidemiology and Mental Health, Norwegian Institute of Public Health, Oslo, Norway
- PROMENTA Research Centre, Department of Psychology, University of Oslo, Oslo, Norway
- Nic Waals Institute, Lovisenberg Diaconal Hospital, Oslo, Norway
| | - Manon H J Hillegers
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre-Sophia, Rotterdam, The Netherlands
| | - Raffael Kalisch
- Leibniz Institute for Resilience Research, Mainz, Germany
- Neuroimaging Center (NIC), Focus Program Translational Neuroscience (FTN), Johannes Gutenberg University Medical Center, Mainz, Germany
| | - Steven A Kushner
- Department of Psychiatry, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands
| | - Isabelle M Mansuy
- Laboratory of Neuroepigenetics, Medical Faculty, Brain Research Institute, Department of Health Science and Technology of ETH, University of Zurich and Institute for Neuroscience, Zurich, Switzerland
- Zurich Neuroscience Centre, ETH and University of Zurich, Zurich, Switzerland
| | - Signe Mežinska
- Institute of Clinical and Preventive Medicine, University of Latvia, Riga, Latvia
| | - Carmen Moreno
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERSAM, ISCIII, School of Medicine, Universidad Complutense, Madrid, Spain
| | - Ryan L Muetzel
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre-Sophia, Rotterdam, The Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Alexander Neumann
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre-Sophia, Rotterdam, The Netherlands
| | - Merete Nordentoft
- The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark
- Copenhagen Research Centre for Mental Health, Mental Health Centre Copenhagen, Copenhagen University Hospital, Copenhagen, Denmark
| | - Jean-Baptiste Pingault
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre-Sophia, Rotterdam, The Netherlands
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- Department of Clinical, Educational and Health Psychology, University College London, London, UK
| | - Martin Preisig
- Psychiatric Epidemiology and Psychopathology Research Centre, Department of Psychiatry, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Andrea Raballo
- Public Health Division, Department of Health and Social Care, Cantonal Socio-Psychiatric Organization, Repubblica e Cantone Ticino, Mendrisio, Switzerland
- Chair of Psychiatry, Faculty of Biomedical Sciences, Università Della Svizzera Italiana, Lugano, Switzerland
| | - John Saunders
- Executive Director European Federation of Associations of Families of People with Mental Illness (EUFAMI), Louvain, Belgium
| | - Emma Sprooten
- Department of Cognitive Neuroscience, Radboud University Medical Centre, Nijmegen, the Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, the Netherlands
- Department of Human Genetics, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Gisela Sugranyes
- Department of Child and Adolescent Psychiatry and Psychology, 2021SGR01319, Institut Clinic de Neurociències, Hospital Clínic de Barcelona, FCRB-IDIBAPS, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Spain
| | - Henning Tiemeier
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre-Sophia, Rotterdam, The Netherlands
- Department of Social and Behavioural Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Geeske M van Woerden
- Department of Neuroscience, Erasmus University Medical Centre, Rotterdam, The Netherlands
- ENCORE Expertise Center for Neurodevelopmental Disorders, Erasmus University Medical Centre, Rotterdam, The Netherlands
- Department of Clinical Genetics, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Caroline L Vandeleur
- Psychiatric Epidemiology and Psychopathology Research Centre, Department of Psychiatry, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Neeltje E M van Haren
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre-Sophia, Rotterdam, The Netherlands.
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Hönig SMN, Flachsenberg F, Ehrt C, Neumann A, Schmidt R, Lemmen C, Rarey M. SpaceGrow: efficient shape-based virtual screening of billion-sized combinatorial fragment spaces. J Comput Aided Mol Des 2024; 38:13. [PMID: 38493240 PMCID: PMC10944417 DOI: 10.1007/s10822-024-00551-7] [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: 12/18/2023] [Accepted: 02/13/2024] [Indexed: 03/18/2024]
Abstract
The growing size of make-on-demand chemical libraries is posing new challenges to cheminformatics. These ultra-large chemical libraries became too large for exhaustive enumeration. Using a combinatorial approach instead, the resource requirement scales approximately with the number of synthons instead of the number of molecules. This gives access to billions or trillions of compounds as so-called chemical spaces with moderate hardware and in a reasonable time frame. While extremely performant ligand-based 2D methods exist in this context, 3D methods still largely rely on exhaustive enumeration and therefore fail to apply. Here, we present SpaceGrow: a novel shape-based 3D approach for ligand-based virtual screening of billions of compounds within hours on a single CPU. Compared to a conventional superposition tool, SpaceGrow shows comparable pose reproduction capacity based on RMSD and superior ranking performance while being orders of magnitude faster. Result assessment of two differently sized subsets of the eXplore space reveals a higher probability of finding superior results in larger spaces highlighting the potential of searching in ultra-large spaces. Furthermore, the application of SpaceGrow in a drug discovery workflow was investigated in four examples involving G protein-coupled receptors (GPCRs) with the aim to identify compounds with similar binding capabilities and molecular novelty.
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Affiliation(s)
- Sophia M N Hönig
- BioSolveIT, An der Ziegelei 79, 53757, Sankt Augustin, Germany
- Universität Hamburg, ZBH - Center for Bioinformatics, Albert-Einstein-Ring 8-10, 22761, Hamburg, Germany
| | | | - Christiane Ehrt
- Universität Hamburg, ZBH - Center for Bioinformatics, Albert-Einstein-Ring 8-10, 22761, Hamburg, Germany
| | | | - Robert Schmidt
- BioSolveIT, An der Ziegelei 79, 53757, Sankt Augustin, Germany
| | | | - Matthias Rarey
- Universität Hamburg, ZBH - Center for Bioinformatics, Albert-Einstein-Ring 8-10, 22761, Hamburg, Germany.
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4
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Mulder RH, Neumann A, Felix JF, Suderman M, Cecil CAM. What makes clocks tick? Characterizing developmental dynamics of adult epigenetic clock sites. bioRxiv 2024:2024.03.12.584597. [PMID: 38559237 PMCID: PMC10979995 DOI: 10.1101/2024.03.12.584597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
DNA methylation (DNAm) at specific sites can be used to calculate 'epigenetic clocks', which in adulthood are used as indicators of age(ing). However, little is known about how these clock sites 'behave' during development and what factors influence their variability in early life. This knowledge could be used to optimize healthy aging well before the onset of age-related conditions. Here, we leveraged results from two longitudinal population-based cohorts (N=5,019 samples from 2,348 individuals) to characterize trajectories of adult clock sites from birth to early adulthood. We find that clock sites (i) diverge widely in their developmental trajectories, often showing non-linear change over time; (ii) are substantially more likely than non-clock sites to vary between individuals already from birth, differences that are predictive of DNAm variation at later ages; and (iii) show enrichment for genetic and prenatal environmental exposures, supporting an early-origins perspective to epigenetic aging.
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Affiliation(s)
- Rosa H. Mulder
- Department of Child and Adolescent Psychiatry / Psychology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Alexander Neumann
- Department of Child and Adolescent Psychiatry / Psychology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Janine F. Felix
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Matthew Suderman
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Charlotte A. M. Cecil
- Department of Child and Adolescent Psychiatry / Psychology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, the Netherlands
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5
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Dargvainiene J, Jensen-Kondering U, Bender B, Berg D, Brüggemann N, Flüh C, Markewitz R, Neumann A, Röben B, Röcken C, Royl G, Schulte C, Wandinger KP, Weiler C, Margraf NG, Kuhlenbäumer G. Aβ38 and Aβ43 do not differentiate between Alzheimer's disease and cerebral amyloid angiopathy. Ann Clin Transl Neurol 2024; 11:806-811. [PMID: 38186185 DOI: 10.1002/acn3.51987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/23/2023] [Accepted: 12/10/2023] [Indexed: 01/09/2024] Open
Abstract
Differential diagnosis between Alzheimer's disease (AD) and cerebral amyloid angiopathy (CAA) using cerebrospinal fluid (CSF) biomarkers is challenging. A recent study suggested that the addition of Aβ38 and Aβ43 to a standard AD biomarker panel (Aβ40, Aβ42, t-tau, p-tau) to improve the differential diagnosis. We tested this hypothesis in an independent German cohort of CAA and AD patients and controls using the same analytical techniques. We found excellent discrimination between AD and controls and between CAA and controls, but not between AD and CAA. Adding Aβ38 and Aβ43 to the panel did not improve the discrimination between AD and CAA.
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Affiliation(s)
- Justina Dargvainiene
- Institute of Clinical Chemistry, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Ulf Jensen-Kondering
- Department of Neuroradiology, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
- Department of Radiology and Neuroradiology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel University (CAU), Kiel, Germany
| | - Benjamin Bender
- Department of Radiology, Diagnostical and Interventional Neuroradiology, University Hospital of Tübingen, Tübingen, Germany
| | - Daniela Berg
- Department of Neurology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel University (CAU), Kiel, Germany
- Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Norbert Brüggemann
- Department of Neurology, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Charlotte Flüh
- Department of Neurosurgery, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel University (CAU), Kiel, Germany
| | - Robert Markewitz
- Institute of Clinical Chemistry, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Alexander Neumann
- Department of Neuroradiology, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Benjamin Röben
- Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
- Department of Pathology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel University (CAU), Kiel, Germany
| | - Christoph Röcken
- Department of Pathology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel University (CAU), Kiel, Germany
| | - Georg Royl
- Department of Neurology, University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Claudia Schulte
- Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
- German Center for Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany
| | - Klaus-Peter Wandinger
- Institute of Clinical Chemistry, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Caroline Weiler
- Department of Neurology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel University (CAU), Kiel, Germany
| | - Nils G Margraf
- Department of Neurology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel University (CAU), Kiel, Germany
| | - Gregor Kuhlenbäumer
- Department of Neurology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel University (CAU), Kiel, Germany
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Behrends A, Wei H, Neumann A, Friedrich T, Bakenecker AC, Franke J, Sajjamark K, Buchholz O, Bär S, Hofmann UG, Graeser M, Buzug TM. Integrable Magnetic Fluid Hyperthermia Systems for 3D Magnetic Particle Imaging. Nanotheranostics 2024; 8:163-178. [PMID: 38444740 PMCID: PMC10911971 DOI: 10.7150/ntno.90360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 01/20/2024] [Indexed: 03/07/2024] Open
Abstract
Background: Combining magnetic particle imaging (MPI) and magnetic fluid hyperthermia (MFH) offers the ability to perform localized hyperthermia and magnetic particle imaging-assisted thermometry of hyperthermia treatment. This allows precise regional selective heating inside the body without invasive interventions. In current MPI-MFH platforms, separate systems are used, which require object transfer from one system to another. Here, we present the design, development and evaluation process for integrable MFH platforms, which extends a commercial MPI scanner with the functionality of MFH. Methods: The biggest issue of integrating magnetic fluid hyperthermia platforms into a magnetic particle imaging system is the magnetic coupling of the devices, which induces high voltage in the imaging system, and is harming its components. In this paper, we use a self-compensation approach derived from heuristic algorithms to protect the magnetic particle imaging scanner. The integrable platforms are evaluated regarding electrical and magnetic characteristics, cooling capability, field strength, the magnetic coupling to a replica of the magnetic particle imaging system's main solenoid and particle heating. Results: The MFH platforms generate suitable magnetic fields for the magnetic heating of particles and are compatible with a commercial magnetic particle imaging scanner. In combination with the imaging system, selective heating with a gradient field and steerable heating positioning using the MPI focus fields are possible. Conclusion: The proposed MFH platforms serve as a therapeutic tool to unlock the MFH functionality of a commercial magnetic particle imaging scanner, enabling its use in future preclinical trials of MPI-guided, spatially selective magnetic hyperthermia therapy.
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Affiliation(s)
- André Behrends
- Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering (IMTE), Lübeck, Germany
| | - Huimin Wei
- Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering (IMTE), Lübeck, Germany
| | - Alexander Neumann
- Institute of Medical Engineering (IMT), University of Lübeck, Lübeck, Germany
| | - Thomas Friedrich
- Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering (IMTE), Lübeck, Germany
| | - Anna C. Bakenecker
- Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering (IMTE), Lübeck, Germany
| | - Jochen Franke
- Bruker BioSpin MRI GmbH, Preclinical Imaging Division, Ettlingen, Germany
| | - Kulthisa Sajjamark
- Bruker BioSpin MRI GmbH, Preclinical Imaging Division, Ettlingen, Germany
| | - Oliver Buchholz
- Section for Neuroelectronic Systems, Department of Neurosurgery, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Sébastien Bär
- Section for Neuroelectronic Systems, Department of Neurosurgery, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Ulrich G. Hofmann
- Section for Neuroelectronic Systems, Department of Neurosurgery, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Matthias Graeser
- Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering (IMTE), Lübeck, Germany
- Institute of Medical Engineering (IMT), University of Lübeck, Lübeck, Germany
| | - Thorsten M. Buzug
- Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering (IMTE), Lübeck, Germany
- Institute of Medical Engineering (IMT), University of Lübeck, Lübeck, Germany
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7
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Mathes A, Duman MB, Neumann A, Dobreva G, Schmidt T. S-adenosylmethionine treatment affects histone methylation in prostate cancer cells. Gene 2024; 893:147915. [PMID: 37866662 DOI: 10.1016/j.gene.2023.147915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/13/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
S-adenosylmethionine (SAM) represents a potent inhibitor of cancer cell proliferation, migration, and invasionin vitro.The underlying mechanisms remain elusive. Here, we examined, if treatment with SAM may cause alterations in the methylation of the histone marks H3K4me3 and H3K27me3, which are both known to play important roles in the initiation and progression of prostate cancer. We treated PC-3 cells with 200 µmol SAM, a concentration known to cause anticancerogenic effects, followed by ChIP-sequencing for H3K4me3 and H3K27me3. We detected 236 differentially methylated regions for H3K27me3 and 560 differentially methylated regions for H3K4me3. GO Term enrichment showed upregulation of anticancerogenic, as well as downregulation of cancerogenic related biological processes, molecular functions, and pathways. Furthermore, we compared specific methylation profiles of SAM treated samples to gene expression changes (RNA-Seq). 35 upregulated and 56 downregulated genes (total: 604 differentially expressed genes) could be related to hypomethylated and hypermethylated regions. 17 upregulated genes could be identified as tumor suppressor genes, 45 downregulated genes in contrast are considered as oncogenes. As a conclusion it can be stated that SAM treatment of prostate cancer cells resulted in alterations of H3K4me3 and H3K27me3 methylation profiles. Gene to peak annotation, alignment with results of a transcriptome study as well as GO-term analysis underpinned the biological relevance of methylation changes.
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Affiliation(s)
- Arthur Mathes
- Cardiovascular Genomics and Epigenomics, European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | | | | | - Gergana Dobreva
- Cardiovascular Genomics and Epigenomics, European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Thomas Schmidt
- Anatomy and Developmental Biology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
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8
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Topper B, Kuhn S, Neumann A, Albrecht AR, Flores AS, Hässner D, Hein S, Hupel C, Nold J, Haarlammert N, Schreiber T, Sheik-Bahae M, Mafi A. Laser cooling ytterbium doped silica by 67 K from ambient temperature. Opt Express 2024; 32:3660-3672. [PMID: 38297582 DOI: 10.1364/oe.507657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/23/2023] [Indexed: 02/02/2024]
Abstract
Laser cooling of a 5 cm long, 1 mm diameter ytterbium doped (6.56×1025 ions/m3) silica rod by 67 K from room temperature was achieved. For the pump source, a 100 W level ytterbium fiber amplifier was constructed along with a 1032 nm fiber Bragg grating seed laser. Experiments were done in vacuum and monitored with the non-contact differential luminescence thermometry method. Direct measurements of the absorption spectrum as a function of temperature were made, to avoid any possible ambiguities from site-selectivity and deviations from McCumber theory at low temperature. This allowed direct computation of the cooling efficiency versus temperature at the pump wavelength, permitting an estimated heat lift of 1.42 W/m as the sample cooled from ambient temperature to an absolute temperature of 229 K.
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9
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Luo M, Walton E, Neumann A, Thio CHL, Felix JF, van IJzendoorn MH, Pappa I, Cecil CAM. DNA methylation at birth and lateral ventricular volume in childhood: a neuroimaging epigenetics study. J Child Psychol Psychiatry 2024; 65:77-90. [PMID: 37469193 PMCID: PMC10953396 DOI: 10.1111/jcpp.13866] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/05/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND Lateral ventricular volume (LVV) enlargement has been repeatedly linked to schizophrenia; yet, what biological factors shape LVV during early development remain unclear. DNA methylation (DNAm), an essential process for neurodevelopment that is altered in schizophrenia, is a key molecular system of interest. METHODS In this study, we conducted the first epigenome-wide association study of neonatal DNAm in cord blood with LVV in childhood (measured using T1-weighted brain scans at 10 years), based on data from a large population-based birth cohort, the Generation R Study (N = 840). Employing both probe-level and methylation profile score (MPS) approaches, we further examined whether epigenetic modifications identified at birth in cord blood are: (a) also observed cross-sectionally in childhood using peripheral blood DNAm at age of 10 years (Generation R, N = 370) and (b) prospectively associated with LVV measured in young adulthood in an all-male sample from the Avon Longitudinal Study of Parents and Children (ALSPAC, N = 114). RESULTS At birth, DNAm levels at four CpGs (annotated to potassium channel tetramerization domain containing 3, KCTD3; SHH signaling and ciliogenesis regulator, SDCCAG8; glutaredoxin, GLRX) prospectively associated with childhood LVV after genome-wide correction; these genes have been implicated in brain development and psychiatric traits including schizophrenia. An MPS capturing a broader epigenetic profile of LVV - but not individual top hits - showed significant cross-sectional associations with LVV in childhood in Generation R and prospectively associated with LVV in early adulthood within ALSPAC. CONCLUSIONS This study finds suggestive evidence that DNAm at birth prospectively associates with LVV at different life stages, albeit with small effect sizes. The prediction of MPS on LVV in a childhood sample and an independent male adult sample further underscores the stability and reproducibility of DNAm as a potential marker for LVV. Future studies with larger samples and comparable time points across development are needed to further elucidate how DNAm associates with this clinically relevant brain structure and risk for neuropsychiatric disorders, and what factors explain the identified DNAm profile of LVV at birth.
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Affiliation(s)
- Mannan Luo
- Department of Psychology, Education and Child StudiesErasmus University RotterdamRotterdamThe Netherlands
- Generation R Study Group, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | | | - Alexander Neumann
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Chris H. L. Thio
- Department of EpidemiologyUniversity Medical Center Groningen, University of GroningenGroningenThe Netherlands
| | - Janine F. Felix
- Generation R Study Group, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
- Department of Pediatrics, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Marinus H. van IJzendoorn
- Department of Psychology, Education and Child StudiesErasmus University RotterdamRotterdamThe Netherlands
- Research Department of Clinical, Educational and Health Psychology, Faculty of Brain Sciences, UCLUniversity of LondonLondonUK
| | - Irene Pappa
- Generation R Study Group, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
- Clinical Child and Family StudiesVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Charlotte A. M. Cecil
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
- Department of Epidemiology, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
- Molecular Epidemiology, Department of Biomedical Data SciencesLeiden University Medical CenterLeidenThe Netherlands
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Suleri A, Rommel AS, Neumann A, Luo M, Hillegers M, de Witte L, Bergink V, Cecil CAM. Exposure to prenatal infection and the development of internalizing and externalizing problems in children: a longitudinal population-based study. J Child Psychol Psychiatry 2023. [PMID: 38158849 DOI: 10.1111/jcpp.13923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/14/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND A large body of work has reported a link between prenatal exposure to infection and increased psychiatric risk in offspring. However, studies to date have focused primarily on exposure to severe prenatal infections and/or individual psychiatric diagnoses in clinical samples, typically measured at single time points, and without accounting for important genetic and environmental confounders. In this study, we investigated whether exposure to common infections during pregnancy is prospectively associated with repeatedly assessed child psychiatric symptoms in a large population-based study. METHODS Our study was embedded in a prospective pregnancy cohort (Generation R; n = 3,598 mother-child dyads). We constructed a comprehensive prenatal infection score comprising common infections for each trimester of pregnancy. Child total, internalizing, and externalizing problems were assessed repeatedly using the parent-rated Child Behavioral Checklist (average age: 1.5, 3, 6, 10, and 14 years). Linear mixed-effects models were run adjusting for a range of confounders, including child polygenic scores for psychopathology, maternal chronic illness, birth complications, and infections during childhood. We also investigated trimester-specific effects and child sex as a potential moderator. RESULTS Prenatal exposure to infections was associated with higher child total, internalizing, and externalizing problems, showing temporally persistent effects, even after adjusting for important genetic and environmental confounders. We found no evidence that prenatal infections were associated with changes in child psychiatric symptoms over time. Moreover, in our trimester-specific analysis, we did not find evidence of significant timing effects of prenatal infection on child psychiatric symptoms. No interactions with child sex were identified. CONCLUSIONS Our research adds to evidence that common prenatal infections may be a risk factor for psychiatric symptoms in children. We also extend previous findings by showing that these associations are present early on, and that rather than changing over time, they persist into adolescence. However, unmeasured confounding may still explain in part these associations. In the future, employing more advanced causal inference designs will be crucial to establishing the degree to which these effects are causal.
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Affiliation(s)
- Anna Suleri
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- The Generation R Study Group, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Anna-Sophie Rommel
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Alexander Neumann
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- The Generation R Study Group, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Mannan Luo
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- The Generation R Study Group, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Manon Hillegers
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Lotje de Witte
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Veerle Bergink
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Psychiatry, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Charlotte A M Cecil
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- Department of Biomedical Data Sciences, Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
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Koch PJ, Rudolf LF, Schramm P, Frontzkowski L, Marburg M, Matthis C, Schacht H, Fiehler J, Thomalla G, Hummel FC, Neumann A, Münte TF, Royl G, Machner B, Schulz R. Preserved Corticospinal Tract Revealed by Acute Perfusion Imaging Relates to Better Outcome After Thrombectomy in Stroke. Stroke 2023; 54:3081-3089. [PMID: 38011237 DOI: 10.1161/strokeaha.123.044221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/04/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND The indication for mechanical thrombectomy (MT) in stroke patients with large vessel occlusion has been constantly expanded over the past years. Despite remarkable treatment effects at the group level in clinical trials, many patients remain severely disabled even after successful recanalization. A better understanding of this outcome variability will help to improve clinical decision-making on MT in the acute stage. Here, we test whether current outcome models can be refined by integrating information on the preservation of the corticospinal tract as a functionally crucial white matter tract derived from acute perfusion imaging. METHODS We retrospectively analyzed 162 patients with stroke and large vessel occlusion of the anterior circulation who were admitted to the University Medical Center Lübeck between 2014 and 2020 and underwent MT. The ischemic core was defined as fully automatized based on the acute computed tomography perfusion with cerebral blood volume data using outlier detection and clustering algorithms. Normative whole-brain structural connectivity data were used to infer whether the corticospinal tract was affected by the ischemic core or preserved. Ordinal logistic regression models were used to correlate this information with the modified Rankin Scale after 90 days. RESULTS The preservation of the corticospinal tract was associated with a reduced risk of a worse functional outcome in large vessel occlusion-stroke patients undergoing MT, with an odds ratio of 0.28 (95% CI, 0.15-0.53). This association was still significant after adjusting for multiple confounding covariables, such as age, lesion load, initial symptom severity, sex, stroke side, and recanalization status. CONCLUSIONS A preinterventional computed tomography perfusion-based surrogate of corticospinal tract preservation or disconnectivity is strongly associated with functional outcomes after MT. If validated in independent samples this concept could serve as a novel tool to improve current outcome models to better understand intersubject variability after MT in large vessel occlusion stroke.
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Affiliation(s)
- Philipp J Koch
- Department of Neurology (P.J.K., M.M., G.R., B.M.), University Hospital Schleswig-Holstein, Campus Lübeck, Germany
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Germany (P.J.K., T.F.M., G.R., B.M.)
| | - Linda F Rudolf
- Department of Neuroradiology (L.F.R., P.S., H.S., A.N.), University Hospital Schleswig-Holstein, Campus Lübeck, Germany
| | - Peter Schramm
- Department of Neuroradiology (L.F.R., P.S., H.S., A.N.), University Hospital Schleswig-Holstein, Campus Lübeck, Germany
| | - Lukas Frontzkowski
- Department of Neurology (L.F., G.T., R.S.) University Medical Center Hamburg Eppendorf, Germany
| | - Maria Marburg
- Department of Neurology (P.J.K., M.M., G.R., B.M.), University Hospital Schleswig-Holstein, Campus Lübeck, Germany
| | - Christine Matthis
- Department of Social Medicine and Epidemiology (C.M.), University Hospital Schleswig-Holstein, Campus Lübeck, Germany
| | - Hannes Schacht
- Department of Neuroradiology (L.F.R., P.S., H.S., A.N.), University Hospital Schleswig-Holstein, Campus Lübeck, Germany
| | - Jens Fiehler
- Department of Neuroradiology (J.F.) University Medical Center Hamburg Eppendorf, Germany
| | - Götz Thomalla
- Department of Neurology (L.F., G.T., R.S.) University Medical Center Hamburg Eppendorf, Germany
| | - Friedhelm C Hummel
- Neuro-X Institute and Brain Mind Institute, Swiss Federal Institute of Technology, Geneva, Switzerland (F.C.H.)
- Neuro-X Institute and Brain Mind Institute, Swiss Federal Institute of Technology (EPFL Valais), Clinique Romande de Réadaptation, Sion, Switzerland (F.C.H.)
- Clinical Neuroscience, University of Geneva Medical School, Switzerland (F.C.H.)
| | - Alexander Neumann
- Department of Neuroradiology (L.F.R., P.S., H.S., A.N.), University Hospital Schleswig-Holstein, Campus Lübeck, Germany
| | - Thomas F Münte
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Germany (P.J.K., T.F.M., G.R., B.M.)
| | - Georg Royl
- Department of Neurology (P.J.K., M.M., G.R., B.M.), University Hospital Schleswig-Holstein, Campus Lübeck, Germany
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Germany (P.J.K., T.F.M., G.R., B.M.)
| | - Björn Machner
- Department of Neurology (P.J.K., M.M., G.R., B.M.), University Hospital Schleswig-Holstein, Campus Lübeck, Germany
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Germany (P.J.K., T.F.M., G.R., B.M.)
- Department of Neurology, Schoen Clinic Neustadt, Holstein, Germany (B.M.)
| | - Robert Schulz
- Department of Neurology (L.F., G.T., R.S.) University Medical Center Hamburg Eppendorf, Germany
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Neumann A, Weber W, Küchler J, Schacht H, Jensen-Kondering U, Berlis A, Schramm P. Evaluation of DeGIR registry data on endovascular treatment of cerebral vasospasm in Germany 2018-2021: an overview of the current care situation. ROFO-FORTSCHR RONTG 2023; 195:1018-1026. [PMID: 37467777 DOI: 10.1055/a-2102-0129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
BACKGROUND Evaluation of endovascular therapies for cerebral vasospasm (CVS) documented in the DeGIR registry from 2018-2021 to analyse the current clinical care situation in Germany. METHODS Retrospective analysis of the clinical and procedural data on endovascular spasm therapies (EST) documented anonymously in the DeGIR registry. We analysed: pre-interventional findings of CTP and consciousness; radiation dose applied, interventional-technical parameters (local medication, devices, angiographic result), post-interventional symptoms, complications and mortality. RESULTS 3584 patients received a total of 7628 EST (median age/patient: 53 [range: 13-100, IQR: 44-60], 68.2 % women) in 91 (2018), 92 (2019), 100 (2020) and 98 (2021) centres; 5388 (70.6 %) anterior circulation and 378 (5 %) posterior circulation (both involved in 1862 cases [24.4 %]). EST was performed once in 2125 cases (27.9 %), with a mean of 2.1 EST/patient. In 7476 times, purely medicated EST were carried out (nimodipine: 6835, papaverine: 401, nitroglycerin: 62, other drug not specified: 239; combinations: 90). Microcatheter infusions were documented in 1132 times (14.8 %). Balloon angioplasty (BA) (additional) was performed in 756 EST (9.9 %), other mechanical recanalisations in 154 cases (2 %) and stenting in 176 of the EST (2.3 %). The median dose area product during ET was 4069 cGycm² (drug: 4002/[+]BA: 8003 [p < 0.001]). At least 1 complication occurred in 95 of all procedures (1.2 %) (drug: 1.1 %/[+]BA: 4.2 % [p < 0.001]). Mortality associated with EST was 0.2 % (n = 18). After EST, overall improvement or elimination of CVS was found in 94.2 % of cases (drug: 93.8 %/[+]BA: 98.1 % [p < 0.001]). In a comparison of the locally applied drugs, papaverine eliminated CVS more frequently than nimodipine (p = 0.001). CONCLUSION EST have a moderate radiation exposure and can be performed with few complications. Purely medicated EST are predominantly performed, especially with nimodipine. With (additional) BA, radiation exposure, complication rates and angiographic results are higher or better. When considering drug EST alone, there is evidence for an advantage of papaverine over nimodipine, but a different group size has to be taken into account. In the analysis of EST, the DeGIR registry data are suitable for answering more specific questions, especially due to the large number of cases; for this purpose, further subgroupings should be sought in the data documentation. KEY POINTS · In Germany, there are currently no guidelines for the endovascular treatment of cerebral vasospasm following spontaneous subarachnoid hemorrhage.. · In addition to oral nimodipine administration endovascular therapy is used to treat cerebral vasospasm in most hospitals.. · This is the first systematic evaluation of nationwide registry data on endovascular treatment of cerebral vasopasm in Germany.. · This real-world data shows that endovascular treatment for cerebral vasospasm has a moderate radiation exposure and can be performed with few complications overall. With (additional) balloon angioplasty, radiation exposure, complication rates and angiographic therapy results are higher or better.. CITATION FORMAT · Neumann A, Weber W, Küchler J et al. Evaluation of DeGIR registry data on endovascular treatment of cerebral vasospasm in Germany 2018-2021: an overview of the current care situation. Fortschr Röntgenstr 2023; 195: 1018 - 1026.
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Affiliation(s)
- Alexander Neumann
- Department of Neuroradiology, University Hospital Schleswig-Holstein, Campus Lübeck, Germany
| | - Werner Weber
- Institute of Diagnostic and Interventional Radiology, Neuroradiology and Nuclear Medicine, University Hospital Knappschaftskrankenhaus Bochum, Germany
| | - Jan Küchler
- Department of Neurosurgery, University Hospital Schleswig-Holstein, Campus Lübeck, Germany
| | - Hannes Schacht
- Department of Neuroradiology, University Hospital Schleswig-Holstein, Campus Lübeck, Germany
| | - Ulf Jensen-Kondering
- Department of Neuroradiology, University Hospital Schleswig-Holstein, Campus Lübeck, Germany
| | - Ansgar Berlis
- Department of Diagnostic and Interventional Neuroradiology, University Hospital Augsburg, Germany
| | - Peter Schramm
- Department of Neuroradiology, University Hospital Schleswig-Holstein, Campus Lübeck, Germany
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Neumann A, Ohlei O, Küçükali F, Bos IJ, Timsina J, Vos S, Prokopenko D, Tijms BM, Andreasson U, Blennow K, Vandenberghe R, Scheltens P, Teunissen CE, Engelborghs S, Frisoni GB, Blin O, Richardson JC, Bordet R, Lleó A, Alcolea D, Popp J, Marsh TW, Gorijala P, Clark C, Peyratout G, Martinez-Lage P, Tainta M, Dobson RJB, Legido-Quigley C, Van Broeckhoven C, Tanzi RE, Ten Kate M, Lill CM, Barkhof F, Cruchaga C, Lovestone S, Streffer J, Zetterberg H, Visser PJ, Sleegers K, Bertram L. Multivariate GWAS of Alzheimer's disease CSF biomarker profiles implies GRIN2D in synaptic functioning. Genome Med 2023; 15:79. [PMID: 37794492 PMCID: PMC10548686 DOI: 10.1186/s13073-023-01233-z] [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: 07/24/2023] [Accepted: 09/12/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Genome-wide association studies (GWAS) of Alzheimer's disease (AD) have identified several risk loci, but many remain unknown. Cerebrospinal fluid (CSF) biomarkers may aid in gene discovery and we previously demonstrated that six CSF biomarkers (β-amyloid, total/phosphorylated tau, NfL, YKL-40, and neurogranin) cluster into five principal components (PC), each representing statistically independent biological processes. Here, we aimed to (1) identify common genetic variants associated with these CSF profiles, (2) assess the role of associated variants in AD pathophysiology, and (3) explore potential sex differences. METHODS We performed GWAS for each of the five biomarker PCs in two multi-center studies (EMIF-AD and ADNI). In total, 973 participants (n = 205 controls, n = 546 mild cognitive impairment, n = 222 AD) were analyzed for 7,433,949 common SNPs and 19,511 protein-coding genes. Structural equation models tested whether biomarker PCs mediate genetic risk effects on AD, and stratified and interaction models probed for sex-specific effects. RESULTS Five loci showed genome-wide significant association with CSF profiles, two were novel (rs145791381 [inflammation] and GRIN2D [synaptic functioning]) and three were previously described (APOE, TMEM106B, and CHI3L1). Follow-up analyses of the two novel signals in independent datasets only supported the GRIN2D locus, which contains several functionally interesting candidate genes. Mediation tests indicated that variants in APOE are associated with AD status via processes related to amyloid and tau pathology, while markers in TMEM106B and CHI3L1 are associated with AD only via neuronal injury/inflammation. Additionally, seven loci showed sex-specific associations with AD biomarkers. CONCLUSIONS These results suggest that pathway and sex-specific analyses can improve our understanding of AD genetics and may contribute to precision medicine.
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Affiliation(s)
- Alexander Neumann
- Complex Genetics of Alzheimer's Disease Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
- Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Olena Ohlei
- Lübeck Interdisciplinary Platform for Genome Analytics (LIGA), University of Lübeck, Ratzeburger Allee 160, V50.2M, Lübeck, 23562, Germany
| | - Fahri Küçükali
- Complex Genetics of Alzheimer's Disease Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Isabelle J Bos
- Netherlands Institute for Health Services Research, Utrecht, Netherlands
| | - Jigyasha Timsina
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St Louis, MO, USA
| | - Stephanie Vos
- Alzheimer Centrum Limburg, Maastricht University, Maastricht, Netherlands
| | - Dmitry Prokopenko
- Genetics and Aging Unit and McCance Center for Brain Health, Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - Betty M Tijms
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, Netherlands
| | - Ulf Andreasson
- Department of Psychiatry and Neurochemistry, University of Gothenburg, Gothenburg, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, University of Gothenburg, Gothenburg, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Rik Vandenberghe
- Laboratory for Cognitive Neurology, Department of Neurosciences, KU Leuven, Leuven, Belgium
- Neurology Service, University Hospital Leuven, Leuven, Belgium
| | - Philip Scheltens
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, Netherlands
| | - Charlotte E Teunissen
- Neurochemistry Laboratory, Department of Clinical Chemistry, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, Netherlands
| | - Sebastiaan Engelborghs
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
- Department of Neurology and Memory Clinic, Universitair Ziekenhuis Brussel (UZ Brussel) and Center for Neurosciences (C4N), Vrije Universiteit Brussel (VUB), Brussels, Belgium
| | - Giovanni B Frisoni
- Memory Center, Department of Rehabilitation and Geriatrics, Geneva University and University Hospitals, Geneva, Switzerland
| | - Oliver Blin
- Clinical Pharmacology & Pharmacovigilance Department, Marseille University Hospital, Marseille, France
| | | | - Régis Bordet
- Neuroscience & Cognition, CHU de Lille, University of Lille, Inserm, France
| | - Alberto Lleó
- Memory Unit, Neurology Department, Hospital de Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Daniel Alcolea
- Memory Unit, Neurology Department, Hospital de Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Julius Popp
- Department of Psychiatry, Psychotherapy and Psychosomatics, University of Zürich, Zurich, Switzerland
- Department of Psychiatry, University Hospital of Lausanne, Lausanne, Switzerland
| | - Thomas W Marsh
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St Louis, MO, USA
- Division of Biology & Biomedical Sciences, Washington University in St. Louis, St Louis, MO, USA
| | - Priyanka Gorijala
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St Louis, MO, USA
| | - Christopher Clark
- Department of Psychiatry, Psychotherapy and Psychosomatics, University of Zürich, Zurich, Switzerland
| | - Gwendoline Peyratout
- Department of Psychiatry, University Hospital of Lausanne, Lausanne, Switzerland
| | - Pablo Martinez-Lage
- Center for Research and Advanced Therapies, CITA-Alzheimer Foundation, San Sebastian, Spain
| | - Mikel Tainta
- Center for Research and Advanced Therapies, CITA-Alzheimer Foundation, San Sebastian, Spain
- Zumarraga Hospital, Osakidetza, Integrated Health Organization (OSI) Goierri-Urola Garia, Basque Country, Spain
| | - Richard J B Dobson
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, Boston, UK
- NIHR BioResource Centre Maudsley, NIHR Maudsley Biomedical Research Centre (BRC) at South London and Maudsley NHS Foundation Trust (SLaM) & Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, UK
- Health Data Research UK London, University College London, London, UK
- Institute of Health Informatics, University College London, London, UK
- The National Institute for Health Research University College London Hospitals Biomedical Research Centre, University College London, London, UK
| | - Cristina Legido-Quigley
- Steno Diabetes Center, Copenhagen, Denmark
- Institute of Pharmaceutical Science, King's College London, London, UK
| | - Christine Van Broeckhoven
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
- Neurodegenerative Brain Diseases Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium
| | - Rudolph E Tanzi
- Genetics and Aging Unit and McCance Center for Brain Health, Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - Mara Ten Kate
- Alzheimer Center and Department of Neurology, VU University Medical Center, Amsterdam, Netherlands
- Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, Netherlands
| | - Christina M Lill
- Lübeck Interdisciplinary Platform for Genome Analytics (LIGA), University of Lübeck, Ratzeburger Allee 160, V50.2M, Lübeck, 23562, Germany
- Institute of Epidemiology and Social Medicine, University of Münster, Münster, Germany
- Ageing Epidemiology Research Unit, School of Public Health, Imperial College, London, UK
| | - Frederik Barkhof
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, Vrije Universiteit, Amsterdam, Netherlands
- Queen Square Institute of Neurology and Centre for Medical Image Computing, University College London, London, UK
| | - Carlos Cruchaga
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA
- NeuroGenomics and Informatics Center, Washington University School of Medicine, St Louis, MO, USA
- Hope Center for Neurological Disorders, Washington University School of Medicine, St Louis, MO, USA
| | - Simon Lovestone
- Janssen Medical Ltd, Wycombe, UK
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Johannes Streffer
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
- AC Immune SA, Lausanne, Switzerland
- Janssen R&D, LLC, Beerse, Belgium
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, University of Gothenburg, Gothenburg, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
- UK Dementia Research Institute, University College London, London, UK
- Hong Kong Center for Neurodegenerative Diseases, Hong Kong, China
| | - Pieter Jelle Visser
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
- Alzheimer Centrum Limburg, Maastricht University, Maastricht, Netherlands
- Alzheimer Center and Department of Neurology, VU University Medical Center, Amsterdam, Netherlands
| | - Kristel Sleegers
- Complex Genetics of Alzheimer's Disease Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Lars Bertram
- Lübeck Interdisciplinary Platform for Genome Analytics (LIGA), University of Lübeck, Ratzeburger Allee 160, V50.2M, Lübeck, 23562, Germany.
- Centre for Lifespan Changes in Brain and Cognition, University of Oslo, Oslo, Norway.
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Schellin J, Neumann A, Schramm P, Laabs BH, Küchler J, Schacht H. Reversible intracranial contrast medium accumulation after embolization of unruptured cerebral aneurysms and its association with transient neurological deficits: A single center experience. Brain Circ 2023; 9:178-184. [PMID: 38020948 PMCID: PMC10679634 DOI: 10.4103/bc.bc_25_23] [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: 04/08/2023] [Revised: 06/10/2023] [Accepted: 06/18/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Use of iodine-containing contrast medium (CM) is obligatory for endovascular treatment (EVT) of cerebral aneurysms. After EVT, intracranial density increases (DIs) can be detected in cranial computed tomography (CT). Those DI can correspond to subarachnoid hemorrhage (SAH), infarction or reversible CM accumulation (RCMA). The latter can be mistaken for hemorrhage, especially if they are accompanied by neurological deficits. OBJECTIVE To analyze postinterventional DI after EVT of unruptured cerebral aneurysms and associated clinical symptoms and to identify risk factors for the occurrence of RCMA. METHODS For differentiation of DI, we compared CT scans following EVT and additionally 24 h ± 5 h later. Diagnosis of RCMA was based on marked regression of DI on follow-up scans. We analyzed continuous variables (age, duration of intervention and anesthesia, aneurysm diameter, amount of CM and renal function) and categorial variables (gender, aneurysm location, devices for EVT, antiplatelet therapy [APT] and associated neurological deficits) to identify risk factors for the occurrence of RCMA. RESULTS We studied 58 patients (44 female, mean age 59.5 [range 39-81]) who underwent EVT for a total of 68 cerebral aneurysms in 62 therapy sessions over a 3-year period without periprocedural complications. Postinterventional DI occurred after 17 therapy sessions. All 17 DI turned out to be RCMA in the follow-up imaging. Two patients who had no DI on initial postinterventional CT showed new SAH on follow-up CT. Infarctions were not observed. Transient neurological deficits occurred in eight patients (12.9%) and were associated with RCMA (P = 0.010). Postinterventional RCMA was associated with the duration of EVT (P = 0.038) and with APT (acetylsalicylic acid [ASA] + clopidogrel: P =0.040; ASA alone: P =0.011). CONCLUSIONS RCMA is common after EVT of unruptured cerebral aneurysms and often accompanied by transient neurological deficits. Long procedure duration and APT appear to predispose to the occurrence of RCMA.
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Affiliation(s)
- Jenna Schellin
- Department of Neuroradiology, University Medical Center Schleswig-Holstein, Lübeck, Germany
| | - Alexander Neumann
- Department of Neuroradiology, University Medical Center Schleswig-Holstein, Lübeck, Germany
| | - Peter Schramm
- Department of Neuroradiology, University Medical Center Schleswig-Holstein, Lübeck, Germany
| | - Björn-Hergen Laabs
- Institute of Medical Biometry and Statistics (I. R. K.), University of Lübeck, Lübeck, Germany
| | - Jan Küchler
- Department of Neurosurgery, University Medical Center Schleswig-Holstein, Lübeck, Germany
| | - Hannes Schacht
- Department of Neuroradiology, University Medical Center Schleswig-Holstein, Lübeck, Germany
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Topper B, Kuhn S, Neumann A, Albrecht AR, Flores AS, Hässner D, Hein S, Hupel C, Nold J, Haarlammert N, Schreiber T, Sheik-Bahae M, Mafi A. Impact of site-selective spectroscopy on laser cooling parameter characterization. Opt Express 2023; 31:20530-20544. [PMID: 37381446 DOI: 10.1364/oe.493825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 05/24/2023] [Indexed: 06/30/2023]
Abstract
From laser design to optical refrigeration, experimentally measured fluorescence spectra are often utilized to obtain input parameters for predictive models. However, in materials that exhibit site-selectivity, the fluorescence spectra depend on the excitation wavelength employed to take the measurement. This work explores different conclusions that predictive models reach after inputting such varied spectra. Here, temperature-dependent site-selective spectroscopy is carried out on an ultra-pure Yb, Al co-doped silica rod fabricated by the modified chemical vapor deposition technique. The results are discussed in the context of characterizing ytterbium doped silica for optical refrigeration. Measurements made between 80 K and 280 K at several different excitation wavelengths yield unique values and temperature dependencies of the mean fluorescence wavelength. For the excitation wavelengths studied here, the variation in emission lineshapes ultimately lead to calculated minimum achievable temperatures (MAT) ranging between 151 K and 169 K, with theoretical optimal pumping wavelengths between 1030 nm and 1037 nm. Direct evaluation of the temperature dependence of the fluorescence spectra band area associated with radiative transitions out of the thermally populated 2F5/2 sublevel may be a better approach to identifying the MAT of a glass where site-selective behavior precludes unique conclusions.
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16
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Rodriguez-Ayllon M, Neumann A, Hofman A, Voortman T, Lubans DR, Yang-Huang J, Jansen PW, Raat H, Vernooij MW, Muetzel RL. Neurobiological, Psychosocial, and Behavioral Mechanisms Mediating Associations Between Physical Activity and Psychiatric Symptoms in Youth in the Netherlands. JAMA Psychiatry 2023; 80:451-458. [PMID: 36988919 PMCID: PMC10061317 DOI: 10.1001/jamapsychiatry.2023.0294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 01/23/2023] [Indexed: 03/30/2023]
Abstract
Importance Understanding the mechanisms by which physical activity is associated with a lower risk of psychiatric symptoms may stimulate the identification of cost-efficient strategies for preventing and treating mental illness at early life stages. Objective To examine neurobiological, psychosocial, and behavioral mechanisms that mediate associations of physical activity with psychiatric symptoms in youth by testing an integrated model. Design, setting, and participants Generation R is an ongoing prospective population-based cohort study collecting data from fetal life until young adulthood in a multiethnic urban population in the Netherlands. Pregnant women living in Rotterdam with an expected delivery date between April 2002 and January 2006 were eligible for participation along with their children born during this time. Data were collected at a single research center in the Erasmus Medical Center Sophia Children's Hospital. For the current study, data were analyzed from 4216 children with complete data on both exposure and outcome at ages 6, 10, and 13 years. Data were analyzed from January 2021 to November 2022. Exposures Physical activity was ascertained at age 6 years (visit 1) via parent report and included weekly frequency and duration of walking or cycling to or from school, physical education at school, outdoor play, swimming, and sports participation. Main Outcomes and Measures Psychiatric symptoms (internalizing and externalizing symptoms) were assessed at age 6 years (visit 1) and at age 13 years (visit 3) using the Child Behavior Checklist. Several mechanisms were explored as mediators, measured at age 10 years (visit 2). Neurobiological mechanisms included total brain volume, white matter microstructure, and resting-state connectivity assessed using a 3-T magnetic resonance imaging scanner. Psychosocial mechanisms included self-esteem, body image, and friendship. Behavioral mechanisms included sleep quality, diet quality, and recreational screen time. Pearson correlations between physical activity measures and psychiatric symptoms were calculated, with false discovery rate correction applied to account for the number of tests performed. Mediation analyses were performed when a correlation (defined as false discovery rate P < .05) between exposure and outcome was observed and were adjusted for confounders. Results Among the 4216 children included in this study, the mean (SD) age was 6.0 (0.4) years at visit 1, and 2115 participants (50.2%) were girls. More sports participation was associated with fewer internalizing symptoms (β for direct effect, -0.025; SE, 0.078; P = .03) but not externalizing symptoms. Self-esteem mediated the association between sports participation and internalizing symptoms (β for indirect effect, -0.009; SE, 0.018; P = .002). No evidence was found for associations between any other neurobiological, psychosocial, or behavioral variables. No association was found between other types of physical activity and psychiatric symptoms at these ages. Conclusions and Relevance The integrated model presented in this cohort study evaluated potential mechanisms mediating associations between physical activity and psychiatric symptoms in youth. Self-esteem mediated an association between sports participation in childhood and internalizing symptoms in adolescence; other significant mediations were not observed. Further studies might explore whether larger effects are present in certain subgroups (eg, children at high risk of developing psychiatric symptoms), different ages, or structured sport-based physical activity interventions.
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Affiliation(s)
- María Rodriguez-Ayllon
- Department of Epidemiology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Alexander Neumann
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
- VIB Center for Molecular Neurology, Antwerp, Belgium
| | - Amy Hofman
- Department of Epidemiology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Trudy Voortman
- Department of Epidemiology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, the Netherlands
| | - David R. Lubans
- Centre for Active Living and Learning, University of Newcastle, Callaghan, New South Wales, Australia
- Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Junwen Yang-Huang
- Department of Public Health, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Pauline W. Jansen
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Psychology, Education and Child Studies, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Hein Raat
- Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
| | - Meike W. Vernooij
- Department of Epidemiology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Ryan L. Muetzel
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
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Jensen-Kondering U, Maurer CJ, Brudermann HCB, Ernst M, Sedaghat S, Margraf NG, Bahmer T, Jansen O, Nawabi J, Vogt E, Büttner L, Siebert E, Bartl M, Maus V, Werding G, Schlamann M, Abdullayev N, Bender B, Richter V, Mengel A, Göpel S, Berlis A, Grams A, Ladenhauf V, Gizewski ER, Kindl P, Schulze-Zachau V, Psychogios M, König IR, Sondermann S, Wallis S, Brüggemann N, Schramm P, Neumann A. Patterns of acute ischemic stroke and intracranial hemorrhage in patients with COVID-19 : Results of a retrospective multicenter neuroimaging-based study from three central European countries. J Neurol 2023; 270:2349-2359. [PMID: 36820915 PMCID: PMC9947908 DOI: 10.1007/s00415-023-11608-2] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/02/2023] [Accepted: 02/03/2023] [Indexed: 02/24/2023]
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) is an infection which can affect the central nervous system. In this study, we sought to investigate associations between neuroimaging findings with clinical, demographic, blood and cerebrospinal fluid (CSF) parameters, pre-existing conditions and the severity of acute COVID-19. MATERIALS AND METHODS Retrospective multicenter data retrieval from 10 university medical centers in Germany, Switzerland and Austria between February 2020 and September 2021. We included patients with COVID-19, acute neurological symptoms and cranial imaging. We collected demographics, neurological symptoms, COVID-19 severity, results of cranial imaging, blood and CSF parameters during the hospital stay. RESULTS 442 patients could be included. COVID-19 severity was mild in 124 (28.1%) patients (moderate n = 134/30.3%, severe n = 43/9.7%, critical n = 141/31.9%). 220 patients (49.8%) presented with respiratory symptoms, 167 (37.8%) presented with neurological symptoms first. Acute ischemic stroke (AIS) was detected in 70 (15.8%), intracranial hemorrhage (IH) in 48 (10.9%) patients. Typical risk factors were associated with AIS; extracorporeal membrane oxygenation therapy and invasive ventilation with IH. No association was found between the severity of COVID-19 or blood/CSF parameters and the occurrence of AIS or IH. DISCUSSION AIS was the most common finding on cranial imaging. IH was more prevalent than expected but a less common finding than AIS. Patients with IH had a distinct clinical profile compared to patients with AIS. There was no association between AIS or IH and the severity of COVID-19. A considerable proportion of patients presented with neurological symptoms first. Laboratory parameters have limited value as a screening tool.
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Affiliation(s)
- Ulf Jensen-Kondering
- Department of Radiology and Neuroradiology, UKSH, Campus Kiel, Kiel, Germany.
- Department of Neuroradiology, UKSH, Campus Lübeck, Lübeck, Germany.
| | - Christoph J Maurer
- Department of Diagnostic and Interventional Neuroradiology, University Hospital Augsburg, Augsburg, Germany
| | - Hanna C B Brudermann
- Institute of Medical Biometry and Statistics (IMBS), UKSH, Campus Lübeck, Lübeck, Germany
| | - Marielle Ernst
- Institute of Diagnostic and Interventional Neuroradiology, University Medical Center, Göttingen, Germany
| | - Sam Sedaghat
- Department of Radiology and Neuroradiology, UKSH, Campus Kiel, Kiel, Germany
- Department of Radiology, University of California San Diego, San Diego, USA
| | - Nils G Margraf
- Department of Neurology, UKSH, Campus Kiel, Kiel, Germany
| | - Thomas Bahmer
- Department of Internal Medicine, UKSH, Campus Kiel, Kiel, Germany
| | - Olav Jansen
- Department of Radiology and Neuroradiology, UKSH, Campus Kiel, Kiel, Germany
| | - Jawed Nawabi
- Department of Radiology, Charité - Universitätsmedizin Berlin, Campus Mitte (CCM), Humboldt-Universität zu Berlin, Freie Universität Berlin, Berlin Institute of Health, Berlin, Germany
- Berlin Institute of Health (BIH), BIH Biomedical Innovation Academy, Berlin, Germany
| | - Estelle Vogt
- Department of Radiology, Charité - Universitätsmedizin Berlin, Campus Mitte (CCM), Humboldt-Universität zu Berlin, Freie Universität Berlin, Berlin Institute of Health, Berlin, Germany
| | - Laura Büttner
- Department of Radiology, Charité - Universitätsmedizin Berlin, Campus Mitte (CCM), Humboldt-Universität zu Berlin, Freie Universität Berlin, Berlin Institute of Health, Berlin, Germany
| | - Eberhard Siebert
- Institute of Neuroradiology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Michael Bartl
- Department of Neurology, University Medical Center, Göttingen, Germany
| | - Volker Maus
- Department of Diagnostic and Interventional Neuroradiology and Nuclear Medicine, University Medical Center Knappschaftskrankenhaus, Bochum, Germany
| | - Gregor Werding
- Department of Diagnostic and Interventional Neuroradiology and Nuclear Medicine, University Medical Center Knappschaftskrankenhaus, Bochum, Germany
| | - Marc Schlamann
- Department of Radiology, Neuroradiology Division, University of Cologne, Cologne, Germany
| | - Nuran Abdullayev
- Department of Radiology, Neuroradiology Division, University of Cologne, Cologne, Germany
- GFO Clinics Troisdorf, Radiology and Neuroradiologie, Troisdorf, Germany
| | - Benjamin Bender
- Department of Diagnostic and Interventional Neuroradiology, University Hospital Tübingen, Tübingen, Germany
| | - Vivien Richter
- Department of Diagnostic and Interventional Neuroradiology, University Hospital Tübingen, Tübingen, Germany
| | - Annerose Mengel
- Department of Neurology and Stroke, University Hospital Tübingen, Tübingen, Germany
| | - Siri Göpel
- Department of Internal Medicine I, University Hospital Tübingen, Tübingen, Germany
| | - Ansgar Berlis
- Department of Diagnostic and Interventional Neuroradiology, University Hospital Augsburg, Augsburg, Germany
| | - Astrid Grams
- Department of Neuroradiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Valentin Ladenhauf
- Department of Neuroradiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Elke R Gizewski
- Department of Neuroradiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Philipp Kindl
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Marios Psychogios
- Department of Neuroradiology, University Hospital Basel, Basel, Switzerland
| | - Inke R König
- Institute of Medical Biometry and Statistics (IMBS), UKSH, Campus Lübeck, Lübeck, Germany
| | | | - Sönke Wallis
- Department of Internal Medicine, UKSH, Campus Lübeck, Lübeck, Germany
| | | | - Peter Schramm
- Department of Neuroradiology, UKSH, Campus Lübeck, Lübeck, Germany
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18
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Neumann A, Kponton T. [Endoscopic release of the carpal tunnel using the Agee technique modified by Neumann]. Oper Orthop Traumatol 2023:10.1007/s00064-023-00804-y. [PMID: 37097461 DOI: 10.1007/s00064-023-00804-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 10/11/2022] [Accepted: 10/16/2022] [Indexed: 04/26/2023]
Abstract
OBJECTIVE Decompression of the median nerve by complete endoscopic release of the transverse carpal ligament (TCL) and the distal antebrachial fascia. Minimization of surgical trauma results in decreased postoperative morbidity and earlier return to work and daily activities. INDICATIONS Symptomatic carpal tunnel syndrome. CONTRAINDICATIONS Revision surgery after open or endoscopic procedure, rheumatic diseases. SURGICAL TECHNIQUE Small transverse incision at the ulnar border of the palmaris longus tendon, and proximal to the distal wrist flexion crease. Exposure and incision of the antebrachial fascia, dilatation of the carpal tunnel and dissection of synovial tissue from the undersurface of the TCL. With the wrist in extension, the endoscopic blade assembly with integrated camera is inserted into the canal. Exposure of TCL and short incision in the middle portion. Gradually, dissection of the distal portion of the TCL then completion by retraction of the blade distally to proximally. POSTOPERATIVE MANAGEMENT Slightly compressive dressing, selfcare on day 1 after procedure. RESULTS More than 25 years of experience, more than 8000 treated patients, and 3 documented cases with intraoperative lesions of the median nerve requiring revision. High acceptance and patient satisfaction in AQS1 patient-reported surveillance.
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Affiliation(s)
- A Neumann
- Praxisklinik Orthopädie und Handchirurgie München West, Fürstenriederstr. 69-71, 80686, München, Deutschland.
| | - T Kponton
- Praxisklinik Orthopädie und Handchirurgie München West, Fürstenriederstr. 69-71, 80686, München, Deutschland
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Olofsson D, Preußner M, Kowar A, Heyd F, Neumann A. One pipeline to predict them all? On the prediction of alternative splicing from RNA-Seq data. Biochem Biophys Res Commun 2023; 653:31-37. [PMID: 36854218 DOI: 10.1016/j.bbrc.2023.02.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 02/19/2023] [Indexed: 02/23/2023]
Abstract
RNA-Seq has become the standard approach to quantify and compare gene expression and alternative splicing in different conditions. In many cases the limiting factor is not the sequencing itself but the bioinformatic analysis. A variety of software tools exist that predict alternative splicing patterns from RNA-Seq data, but surprisingly, a systematic comparison of the predictions obtained from different pipelines has not been performed. Here we compare results from frequently used bioinformatic tools using a high-quality RNA-Seq dataset. We show that there is little overlap in the splicing changes predicted by different tools and that GO-term analysis of the splicing changes predicted by the individual targets yields very different results. Validation of bioinformatic predictions by RT-PCR suggest a high number of false positives in the splicing changes predicated by each pipeline, which probably dominates GO-term analysis. The validation rate is strongly increased for targets predicted by several tools, offering a strategy to reduce false positives. Based on these results we offer some guidelines that may contribute to make alternative splicing predictions more reliable and may thus increase the impact of conclusions drawn from RNA-Seq studies. Furthermore, we created rmappet, a nextflow pipeline that performs alternative splicing analysis using rMATS and Whippet with subsequent overlapping of the results, enabling robust splicing analysis with only one command (https://github.com/didrikolofsson/rmappet/).
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Affiliation(s)
- Didrik Olofsson
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Takustrasse 6, 14195, Berlin, Germany
| | - Marco Preußner
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Takustrasse 6, 14195, Berlin, Germany
| | - Alexander Kowar
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Takustrasse 6, 14195, Berlin, Germany
| | - Florian Heyd
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Takustrasse 6, 14195, Berlin, Germany.
| | - Alexander Neumann
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Takustrasse 6, 14195, Berlin, Germany.
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20
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Neumann A, Marrison L, Klein R. Relevance of the Trillion-Sized Chemical Space "eXplore" as a Source for Drug Discovery. ACS Med Chem Lett 2023; 14:466-472. [PMID: 37077402 PMCID: PMC10108389 DOI: 10.1021/acsmedchemlett.3c00021] [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: 01/19/2023] [Accepted: 03/10/2023] [Indexed: 03/18/2023] Open
Abstract
Within the past two decades, virtual combinatorial compound collections, so-called chemical spaces, became an important molecule source for pharmaceutical research all over the world. The emergence of compound vendor chemical spaces with rapidly growing numbers of molecules raises questions about their application suitability and the quality of the content. Here, we examine the composition of the recently published and, so far, biggest chemical space, "eXplore", which comprises approximately 2.8 trillion virtual product molecules. The utility of eXplore to retrieve interesting chemistry around approved drugs and common Bemis Murcko scaffolds has been assessed with several methods (FTrees, SpaceLight, SpaceMACS). Further, the overlap between several vendor chemical spaces and a physicochemical property distribution analysis has been performed. Despite the straightforward chemical reactions underlying its setup, eXplore is demonstrated to provide relevant and, most importantly, easily accessible molecules for drug discovery campaigns.
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Affiliation(s)
| | - Lester Marrison
- eMolecules, 3430 Carmel Mountain Road, Suite
250, San Diego, California 92121, United States
| | - Raphael Klein
- BioSolveIT
GmbH, An der Ziegelei 79, 53757 Sankt Augustin, Germany
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21
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Preußner M, Smith HL, Hughes D, Zhang M, Emmerichs AK, Scalzitti S, Peretti D, Swinden D, Neumann A, Haltenhof T, Mallucci GR, Heyd F. ASO targeting RBM3 temperature-controlled poison exon splicing prevents neurodegeneration in vivo. EMBO Mol Med 2023; 15:e17157. [PMID: 36946385 PMCID: PMC10165353 DOI: 10.15252/emmm.202217157] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 02/16/2023] [Accepted: 02/18/2023] [Indexed: 03/23/2023] Open
Abstract
Neurodegenerative diseases are increasingly prevalent in the aging population, yet no disease-modifying treatments are currently available. Increasing the expression of the cold-shock protein RBM3 through therapeutic hypothermia is remarkably neuroprotective. However, systemic cooling poses a health risk, strongly limiting its clinical application. Selective upregulation of RBM3 at normothermia thus holds immense therapeutic potential. Here we identify a poison exon within the RBM3 gene that is solely responsible for its cold-induced expression. Genetic removal or antisense oligonucleotide (ASO)-mediated manipulation of this exon yields high RBM3 levels independent of cooling. Notably, a single administration of ASO to exclude the poison exon, using FDA-approved chemistry, results in long-lasting increased RBM3 expression in mouse brains. In prion-diseased mice, this treatment leads to remarkable neuroprotection, with prevention of neuronal loss and spongiosis despite high levels of disease-associated prion protein. Our promising results in mice support the possibility that RBM3-inducing ASOs might also deliver neuroprotection in humans in conditions ranging from acute brain injury to Alzheimer's disease.
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Affiliation(s)
- Marco Preußner
- Institut für Chemie und Biochemie, RNA Biochemie, Freie Universität Berlin, Berlin, Germany
| | - Heather L Smith
- UK Dementia Research Institute and Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
- Altos Labs, Cambridge Institute of Science, Cambridge, UK
| | - Daniel Hughes
- UK Dementia Research Institute and Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Min Zhang
- Institut für Chemie und Biochemie, RNA Biochemie, Freie Universität Berlin, Berlin, Germany
| | - Ann-Kathrin Emmerichs
- Institut für Chemie und Biochemie, RNA Biochemie, Freie Universität Berlin, Berlin, Germany
| | - Silvia Scalzitti
- Institut für Chemie und Biochemie, RNA Biochemie, Freie Universität Berlin, Berlin, Germany
| | - Diego Peretti
- UK Dementia Research Institute and Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Dean Swinden
- UK Dementia Research Institute and Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
- Altos Labs, Cambridge Institute of Science, Cambridge, UK
| | - Alexander Neumann
- Institut für Chemie und Biochemie, RNA Biochemie, Freie Universität Berlin, Berlin, Germany
- Omiqa Bioinformatics, Berlin, Germany
| | - Tom Haltenhof
- Institut für Chemie und Biochemie, RNA Biochemie, Freie Universität Berlin, Berlin, Germany
- Omiqa Bioinformatics, Berlin, Germany
| | - Giovanna R Mallucci
- UK Dementia Research Institute and Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
- Altos Labs, Cambridge Institute of Science, Cambridge, UK
| | - Florian Heyd
- Institut für Chemie und Biochemie, RNA Biochemie, Freie Universität Berlin, Berlin, Germany
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22
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Franz A, Weber AI, Preußner M, Dimos N, Stumpf A, Ji Y, Moreno-Velasquez L, Voigt A, Schulz F, Neumann A, Kuropka B, Kühn R, Urlaub H, Schmitz D, Wahl MC, Heyd F. Branch point strength controls species-specific CAMK2B alternative splicing and regulates LTP. Life Sci Alliance 2023; 6:6/3/e202201826. [PMID: 36543542 PMCID: PMC9772828 DOI: 10.26508/lsa.202201826] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/01/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
Regulation and functionality of species-specific alternative splicing has remained enigmatic to the present date. Calcium/calmodulin-dependent protein kinase IIβ (CaMKIIβ) is expressed in several splice variants and plays a key role in learning and memory. Here, we identify and characterize several primate-specific CAMK2B splice isoforms, which show altered kinetic properties and changes in substrate specificity. Furthermore, we demonstrate that primate-specific CAMK2B alternative splicing is achieved through branch point weakening during evolution. We show that reducing branch point and splice site strengths during evolution globally renders constitutive exons alternative, thus providing novel mechanistic insight into cis-directed species-specific alternative splicing regulation. Using CRISPR/Cas9, we introduce a weaker, human branch point sequence into the mouse genome, resulting in strongly altered Camk2b splicing in the brains of mutant mice. We observe a strong impairment of long-term potentiation in CA3-CA1 synapses of mutant mice, thus connecting branch point-controlled CAMK2B alternative splicing with a fundamental function in learning and memory.
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Affiliation(s)
- Andreas Franz
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Berlin, Germany.,Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of Structural Biochemistry, Berlin, Germany
| | - A Ioana Weber
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Berlin, Germany
| | - Marco Preußner
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Berlin, Germany
| | - Nicole Dimos
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of Structural Biochemistry, Berlin, Germany
| | - Alexander Stumpf
- Neuroscience Research Centre (NWFZ), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Yanlong Ji
- Bioanalytical Mass Spectrometry Group, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.,Hematology/Oncology, Department of Medicine II, Johann Wolfgang Goethe University, Frankfurt am Main, Germany.,Frankfurt Cancer Institute, Goethe University, Frankfurt am Main, Germany
| | - Laura Moreno-Velasquez
- Neuroscience Research Centre (NWFZ), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Anne Voigt
- Neuroscience Research Centre (NWFZ), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Frederic Schulz
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Berlin, Germany
| | - Alexander Neumann
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Berlin, Germany
| | - Benno Kuropka
- Freie Universität Berlin, Mass Spectrometry Core Facility (BioSupraMol), Berlin, Germany
| | - Ralf Kühn
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), Genome Engineering & Disease Models, Berlin, Germany
| | - Henning Urlaub
- Bioanalytical Mass Spectrometry Group, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.,Institute of Clinical Chemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Dietmar Schmitz
- Neuroscience Research Centre (NWFZ), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Markus C Wahl
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of Structural Biochemistry, Berlin, Germany.,Helmholtz-Zentrum Berlin für Materialien und Energie, Macromolecular Crystallography, Berlin, Germany
| | - Florian Heyd
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Laboratory of RNA Biochemistry, Berlin, Germany
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23
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Neumann A, Weill A. Les données PMSI de l'activité ambulatoire du champ de la psychiatrie. Est-ce que le chaînage avec DCIR est devenu possible en 2021 ? Rev Epidemiol Sante Publique 2023. [DOI: 10.1016/j.respe.2023.101494] [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: 02/26/2023] Open
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24
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Rijlaarsdam J, Cosin-Tomas M, Schellhas L, Abrishamcar S, Malmberg A, Neumann A, Felix JF, Sunyer J, Gutzkow KB, Grazuleviciene R, Wright J, Kampouri M, Zar HJ, Stein DJ, Heinonen K, Räikkönen K, Lahti J, Hüls A, Caramaschi D, Alemany S, Cecil CAM. DNA methylation and general psychopathology in childhood: an epigenome-wide meta-analysis from the PACE consortium. Mol Psychiatry 2023; 28:1128-1136. [PMID: 36385171 PMCID: PMC7614743 DOI: 10.1038/s41380-022-01871-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 02/10/2022] [Revised: 10/25/2022] [Accepted: 11/02/2022] [Indexed: 11/17/2022]
Abstract
The general psychopathology factor (GPF) has been proposed as a way to capture variance shared between psychiatric symptoms. Despite a growing body of evidence showing both genetic and environmental influences on GPF, the biological mechanisms underlying these influences remain unclear. In the current study, we conducted epigenome-wide meta-analyses to identify both probe- and region-level associations of DNA methylation (DNAm) with school-age general psychopathology in six cohorts from the Pregnancy And Childhood Epigenetics (PACE) Consortium. DNAm was examined both at birth (cord blood; prospective analysis) and during school-age (peripheral whole blood; cross-sectional analysis) in total samples of N = 2178 and N = 2190, respectively. At school-age, we identified one probe (cg11945228) located in the Bromodomain-containing protein 2 gene (BRD2) that negatively associated with GPF (p = 8.58 × 10-8). We also identified a significant differentially methylated region (DMR) at school-age (p = 1.63 × 10-8), implicating the SHC Adaptor Protein 4 (SHC4) gene and the EP300-interacting inhibitor of differentiation 1 (EID1) gene that have been previously implicated in multiple types of psychiatric disorders in adulthood, including obsessive compulsive disorder, schizophrenia, and major depressive disorder. In contrast, no prospective associations were identified with DNAm at birth. Taken together, results of this study revealed some evidence of an association between DNAm at school-age and GPF. Future research with larger samples is needed to further assess DNAm variation associated with GPF.
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Affiliation(s)
- Jolien Rijlaarsdam
- Department of Child and Adolescent Psychiatry/ Psychology, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Marta Cosin-Tomas
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain.
- Universitat Pompeu Fabra, Barcelona, Spain.
- Centro de investigación biomédica en red en epidemiología y salud pública (ciberesp), Madrid, Spain.
| | - Laura Schellhas
- School of Psychological Science, MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- Institute for Sex Research, Sexual Medicine and Forensic Psychiatry, University Medical Center Hamburg, Eppendorf, Germany
| | - Sarina Abrishamcar
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Anni Malmberg
- Department of Psychology & Logopedics, University of Helsinki, Helsinki, Finland
| | | | - Janine F Felix
- The Generation R Study Group, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Pediatrics, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jordi Sunyer
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain
- Universitat Pompeu Fabra, Barcelona, Spain
- Centro de investigación biomédica en red en epidemiología y salud pública (ciberesp), Madrid, Spain
| | - Kristine B Gutzkow
- Division of Climate and Environmental Health, Norwegian Institute of Public Health (NIPH), Oslo, Norway
| | - Regina Grazuleviciene
- Department of Environmental Science, Vytautas Magnus University, 44248, Kaunas, Lithuania
| | - John Wright
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK
| | - Mariza Kampouri
- Department of Social Medicine, University of Crete, Crete, Greece
| | - Heather J Zar
- Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town, Cape Town, South Africa
- South African Medical Research Council (SAMRC) Unit on Child and Adolescent Health, University of Cape Town, Cape Town, South Africa
| | - Dan J Stein
- Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa
- South African Medical Research Council (SAMRC) Unit on Risk and Resilience in Mental Disorders, Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Kati Heinonen
- Department of Psychology & Logopedics, University of Helsinki, Helsinki, Finland
- Psychology/ Welfare Sciences, Faculty of Social Sciences, Tampere University, Tampere, Finland
| | - Katri Räikkönen
- Department of Psychology & Logopedics, University of Helsinki, Helsinki, Finland
| | - Jari Lahti
- Department of Psychology & Logopedics, University of Helsinki, Helsinki, Finland
| | - Anke Hüls
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Doretta Caramaschi
- Medical Research Council Integrative Epidemiology Unit, Population Health Science, Bristol Medical School, University of Bristol, Bristol, UK
- Department of Psychology, , University of Exeter, Exeter, UK
| | - Silvia Alemany
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Barcelona, Spain
| | - Charlotte A M Cecil
- Department of Child and Adolescent Psychiatry/ Psychology, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands.
- Department of Epidemiology, Erasmus MC University Medical Center Rotterdam, Rotterdam, The Netherlands.
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands.
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25
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Abstract
Background Epigenetic processes are fast emerging as a promising molecular system in the search for both biomarkers and mechanisms underlying human health and disease risk, including psychopathology. Methods In this review, we discuss the application of epigenetics (specifically DNA methylation) to research in child and adolescent mental health, with a focus on the use of developmentally sensitive datasets, such as prospective, population-based cohorts. We look back at lessons learned to date, highlight current developments in the field and areas of priority for future research. We also reflect on why epigenetic research on child and adolescent mental health currently lags behind other areas of epigenetic research and what we can do to overcome existing barriers. Results To move the field forward, we advocate for the need of large-scale, harmonized, collaborative efforts that explicitly account for the time-varying nature of epigenetic and mental health data across development. Conclusion We conclude with a perspective on what the future may hold in terms of translational applications as more robust signals emerge from epigenetic research on child and adolescent mental health.
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Affiliation(s)
- Charlotte A M Cecil
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC-Sophia, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands.,Department of Biomedical Data Sciences, Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Alexander Neumann
- Complex Genetics of Alzheimer's Disease Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium.,Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Esther Walton
- Department of Psychology, University of Bath, Bath, UK
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26
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Jensen-Kondering U, Margraf NG, Weiler C, Maetzler W, Dargvainiene J, Falk K, Philippen S, Bartsch T, Flüh C, Röcken C, Möller B, Royl G, Neumann A, Brüggemann N, Roeben B, Schulte C, Bender B, Berg D, Kuhlenbäumer G. Characterizing mixed location hemorrhages/microbleeds with CSF markers. Int J Stroke 2023:17474930231152124. [PMID: 36622021 DOI: 10.1177/17474930231152124] [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] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Cerebral amyloid angiopathy (CAA) is a common cause of lobar and subarachnoid hemorrhages in the elderly. A diagnosis of CAA requires multiple lobar hemorrhagic lesions (intracerebral hemorrhage and/or cerebral microbleeds) and/or cortical superficial siderosis (cSS). In contrast, hemorrhagic lesions located in the deep structures are the hallmark of hypertensive arteriopathy (HTN-A). They are an exclusion criterion for CAA, and when present with lobar hemorrhagic lesions considered a separate entity: mixed location hemorrhages/microbleeds (MLHs). We compared clinical, radiological, and cerebrospinal fluid (CSF) marker data in patients with CAA, MLH, and Alzheimer's disease (AD), and healthy controls (HCs) and used it to position MLH in the disease spectrum. PATIENTS AND METHODS Retrospective cohort study of consecutive patients with CAA (n = 31), MLH (n = 31), AD (n = 28), and HC (n = 30). Analysis of clinical, radiological, CSF biomarker (Aß42, Aß40, t-tau, and p-tau), and histopathological data in patients each group. RESULTS cSS was significantly more common in CAA than MLH (45% vs 13%, p = 0.011), and cSS in MLH was associated with intracerebral hemorrhage (ICH) (p = 0.037). Aß42 levels and the Aß42/Aß40 ratio, diagnostic groups followed the order HC > MLH > CAA > AD and the opposite order for t-tau and p-tau. No clear order was apparent forAß40. Aß40 and Aß42 levels as well as the Aß42/Aß40 ratio were lower in both CAA and MLH patients with cSS than in patients without cSS. Aß40 and Aß42 levels were higher in CAA and MLH patients with lacunar infarcts than in those without. CONCLUSION Our data suggest that MLH and CAA are mutually not exclusive diagnoses, and are part of a spectrum with variable contributions of both CAA and HTN-A.
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Affiliation(s)
- Ulf Jensen-Kondering
- Department of Radiology and Neuroradiology, University Medical Center Schleswig-Holstein, Kiel, Germany.,Department of Neuroradiology, University Medical Center Schleswig-Holstein, Lübeck, Germany
| | - Nils G Margraf
- Department of Neurology, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Caroline Weiler
- Department of Neurology, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Walter Maetzler
- Department of Neurology, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Justina Dargvainiene
- Institute of Clinical Chemistry, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Kim Falk
- Institute of Clinical Chemistry, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Sarah Philippen
- Department of Neurology, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Thorsten Bartsch
- Department of Neurology, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Charlotte Flüh
- Department of Neurosurgery, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Christoph Röcken
- Department of Pathology, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Bettina Möller
- Department of Neurology, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Georg Royl
- Department of Neurology, University Medical Center Schleswig Holstein, Lübeck, Germany
| | - Alexander Neumann
- Department of Neuroradiology, University Medical Center Schleswig-Holstein, Lübeck, Germany
| | - Norbert Brüggemann
- Department of Neurology, University Medical Center Schleswig Holstein, Lübeck, Germany.,Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Benjamin Roeben
- Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Tübingen, Germany.,German Center for Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany
| | - Claudia Schulte
- Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Tübingen, Germany.,German Center for Neurodegenerative Diseases, University of Tübingen, Tübingen, Germany
| | - Benjamin Bender
- Diagnostic and Interventional Neuroradiology, Department of Radiology, University Hospital of Tübingen, Tübingen, Germany
| | - Daniela Berg
- Department of Neurology, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Gregor Kuhlenbäumer
- Department of Neurology, University Medical Center Schleswig-Holstein, Kiel, Germany
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27
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Barreira M, Kerridge C, Jorda S, Olofsson D, Neumann A, Horton H, Smith-Moore S. Enzymatically amplified linear dbDNA TM as a rapid and scalable solution to industrial lentiviral vector manufacturing. Gene Ther 2023; 30:122-131. [PMID: 35606492 PMCID: PMC9935383 DOI: 10.1038/s41434-022-00343-4] [Citation(s) in RCA: 3] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 11/09/2022]
Abstract
Traditional bacterial fermentation techniques used to manufacture plasmid are time-consuming, expensive, and inherently unstable. The production of sufficient GMP grade material thus imposes a major bottleneck on industrial-scale manufacturing of lentiviral vectors (LVV). Touchlight's linear doggybone DNA (dbDNATM) is an enzymatically amplified DNA vector produced with exceptional speed through an in vitro dual enzyme process, enabling industrial-scale manufacturing of GMP material in a fraction of the time required for plasmid. We have previously shown that dbDNATM can be used to produce functional LVV; however, obtaining high LVV titres remained a challenge. Here, we aimed to demonstrate that dbDNATM could be optimised for the manufacture of high titre LVV. We found that dbDNATM displayed a unique transfection and expression profile in the context of LVV production, which necessitated the optimisation of DNA input and construct ratios. Furthermore, we demonstrate that efficient 3' end processing of viral genomic RNA (vgRNA) derived from linear dbDNATM transfer vectors required the addition of a strong 3' termination signal and downstream spacer sequence to enable efficient vgRNA packaging. Using these improved vector architectures along with optimised transfection conditions, we were able to produce a CAR19h28z LVV with equivalent infectious titres as achieved using plasmid, demonstrating that dbDNATM technology can provide a highly effective solution to the plasmid bottleneck.
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Affiliation(s)
- Maria Barreira
- Touchlight Genetics Ltd, Hampton, TW12 2ER, United Kingdom.,Cell and Gene Therapy Catapult, Guy's Hospital, London, SE1 9RT, United Kingdom
| | | | - Sara Jorda
- Touchlight Genetics Ltd, Hampton, TW12 2ER, United Kingdom.,Medical Research Institute La Fe, 46026, Valencia, Spain
| | - Didrik Olofsson
- Omiqa Bioinformatics GmbH, Altensteinstraße 40, 14195, Berlin, Germany
| | - Alexander Neumann
- Omiqa Bioinformatics GmbH, Altensteinstraße 40, 14195, Berlin, Germany
| | - Helen Horton
- Touchlight Genetics Ltd, Hampton, TW12 2ER, United Kingdom
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Topper B, Neumann A, Albrecht AR, Flores AS, Kuhn S, Häßner D, Hein S, Hupel C, Nold J, Haarlammert N, Schreiber T, Sheik-Bahae M, Mafi A. Potential of ytterbium doped silica glass for solid-state optical refrigeration to below 200 K. Opt Express 2023; 31:3122-3133. [PMID: 36785310 DOI: 10.1364/oe.481191] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 12/21/2022] [Indexed: 06/18/2023]
Abstract
We report on the optical refrigeration of ytterbium doped silica glass by >40 K starting at room temperature, which represents more than a two-fold improvement over the previous state-of-the-art. A spectroscopic investigation of the steady-state and time-dependent fluorescence was carried out over the temperature range 80 K to 400 K. The calculated minimum achievable temperature for our Yb3+ doped silica sample is ≈150 K, implying the potential for utilizing ytterbium doped silica for solid-state optical refrigeration below temperatures commonly achieved by standard Peltier devices.
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29
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Huhndorf M, Röcken C, Flüh C, Weiler C, Kuhlenbäumer G, Tegeler N, Schacht H, Neumann A, Margraf NG, Jensen-Kondering U. Frequency of deep-seated cerebral microbleeds in patients with lobar hemorrhages and histopathological evidence for cerebral amyloid angiopathy. Front Neurol 2023; 14:1146737. [PMID: 37122304 PMCID: PMC10130449 DOI: 10.3389/fneur.2023.1146737] [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: 01/17/2023] [Accepted: 03/08/2023] [Indexed: 05/02/2023] Open
Abstract
Background Cerebral amyloid angiopathy (CAA) is a common disease and the most common cause of lobar hemorrhages in the elderly. Usually, deep-seated microhemorrhages preclude the diagnosis of CAA. In this study, we sought to estimate the frequency of deep-seated microbleeds on MRI in patients with lobar hemorrhages and histopathological evidence for cerebral amyloid angiopathy. In addition, we describe a cohort of patients with cortical and deep-seated microbleeds on MRI and a histopathological specimen available from lobar hematoma evacuation. Methods Retrospective database search for histopathological specimens from lobar hematoma evacuation and review of imaging findings (CT and MRI) and patient charts was performed. Results Between 1 January 2012 and 31 December 2020, 88 specimens from 88 patients were available. A total of 56 specimens were excluded (no brain tissue in the specimen n = 4, other diagnosis n = 8, no MRI n = 43, and no BOLD-based sequence n = 1). Of the remaining 32 patients, 25 patients (78%) did not harbor deep-seated lesions on MRI, of which 17 patients had histopathological features of CAA. A total of seven patients harbored deep-seated CMB. Of these seven patients, three (3/20, 15%) had histopathological features of CAA. Conclusion Approximately 15% of patients with histopathologically diagnosed CAA harbor deep-seated microbleeds. This finding may add to the discussion on how to identify patients with CAA and deep-seated CMB.
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Affiliation(s)
- Monika Huhndorf
- Department of Radiology and Neuroradiology, Universitätsklinikum Schleswig-Holstein (UKSH), Kiel, Germany
| | - Christoph Röcken
- Department of Pathology, Universitätsklinikum Schleswig-Holstein (UKSH), Kiel, Germany
| | - Charlotte Flüh
- Department of Neurosurgery, Universitätsklinikum Schleswig-Holstein (UKSH), Kiel, Germany
| | - Caroline Weiler
- Department of Neurology, Universitätsklinikum Schleswig-Holstein (UKSH), Kiel, Germany
| | - Gregor Kuhlenbäumer
- Department of Neurology, Universitätsklinikum Schleswig-Holstein (UKSH), Kiel, Germany
| | - Nora Tegeler
- Department of Neurosurgery, Universitätsklinikum Schleswig-Holstein (UKSH), Kiel, Germany
| | - Hannes Schacht
- Department of Neuroradiology, Universitätsklinikum Schleswig-Holstein (UKSH), Lübeck, Germany
| | - Alexander Neumann
- Department of Neuroradiology, Universitätsklinikum Schleswig-Holstein (UKSH), Lübeck, Germany
| | - Nils G. Margraf
- Department of Neurology, Universitätsklinikum Schleswig-Holstein (UKSH), Kiel, Germany
| | - Ulf Jensen-Kondering
- Department of Radiology and Neuroradiology, Universitätsklinikum Schleswig-Holstein (UKSH), Kiel, Germany
- Department of Neuroradiology, Universitätsklinikum Schleswig-Holstein (UKSH), Lübeck, Germany
- *Correspondence: Ulf Jensen-Kondering
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Essers E, Binter AC, Neumann A, White T, Alemany S, Guxens M. Air pollution exposure during pregnancy and childhood, APOE ε4 status and Alzheimer polygenic risk score, and brain structural morphology in preadolescents. Environ Res 2023; 216:114595. [PMID: 36257450 DOI: 10.1016/j.envres.2022.114595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 09/27/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Air pollution exposure is associated with impaired neurodevelopment, altered structural brain morphology in children, and neurodegenerative disorders. Differential susceptibility to air pollution may be influenced by genetic features. OBJECTIVES To evaluate whether the apolipoprotein E (APOE) genotype or the polygenic risk score (PRS) for Alzheimer's Disease (AD) modify the association between air pollution exposure during pregnancy and childhood and structural brain morphology in preadolescents. METHODS We included 1186 children from the Generation R Study. Concentrations of fourteen air pollutants were calculated at participants' home addresses during pregnancy and childhood using land-use-regression models. Structural brain images were collected at age 9-12 years to assess cortical and subcortical brain volumes. APOE status and PRS for AD were examined as genetic modifiers. Linear regression models were used to conduct single-pollutant and multi-pollutant (using the Deletion/Substitution/Addition algorithm) analyses with a two-way interaction between air pollution and each genetic modifier. RESULTS Higher pregnancy coarse particulate matter (PMcoarse) and childhood polycyclic aromatic hydrocarbons exposure was differentially associated with larger cerebral white matter volume in APOE ε4 carriers compared to non-carriers (29,485 mm3 (95% CI 6,189; 52,781) and 18,663 mm3 (469; 36,856), respectively). Higher pregnancy PMcoarse exposure was differentially associated with larger cortical grey matter volume in children with higher compared to lower PRS for AD (19436 mm3 (825, 38,046)). DISCUSSION APOE status and PRS for AD possibly modify the association between air pollution exposure and brain structural morphology in preadolescents. Higher air pollution exposure is associated with larger cortical volumes in APOE ε4 carriers and children with a high PRS for AD. This is in line with typical brain development, suggesting an antagonistic pleiotropic effect of these genetic features (i.e., protective effect in early-life, but neurodegenerative effect in adulthood). However, we cannot discard chance findings. Future studies should evaluate trajectorial brain development using a longitudinal design.
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Affiliation(s)
- Esmée Essers
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain; Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands.
| | - Anne-Claire Binter
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain.
| | - Alexander Neumann
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands; Complex Genetics of Alzheimer's Disease Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium; Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.
| | - Tonya White
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands; Department of Radiology and Nuclear Medicine, Erasmus Medical Centre, Rotterdam, the Netherlands.
| | - Silvia Alemany
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health, and Addiction, Vall d'Hebron Research Institute, Barcelona, Spain; Biomedical Network Research Centre on Mental Health (CIBERSAM), Barcelona, Spain; Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Mònica Guxens
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Centre, Rotterdam, the Netherlands.
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Hofman A, Rodriguez-Ayllon M, Vernooij MW, Croll PH, Luik AI, Neumann A, Niessen WJ, Ikram MA, Voortman T, Muetzel RL. Physical activity levels and brain structure in middle-aged and older adults: a bidirectional longitudinal population-based study. Neurobiol Aging 2023; 121:28-37. [DOI: 10.1016/j.neurobiolaging.2022.10.002] [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] [Received: 04/29/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 11/11/2022]
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Müller J, Klein R, Tarkhanova O, Gryniukova A, Borysko P, Merkl S, Ruf M, Neumann A, Gastreich M, Moroz YS, Klebe G, Glinca S. Magnet for the Needle in Haystack: "Crystal Structure First" Fragment Hits Unlock Active Chemical Matter Using Targeted Exploration of Vast Chemical Spaces. J Med Chem 2022; 65:15663-15678. [PMID: 36069712 DOI: 10.1021/acs.jmedchem.2c00813] [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: 12/13/2022]
Abstract
Fragment-based drug discovery (FBDD) has successfully led to approved therapeutics for challenging and "undruggable" targets. In the context of FBDD, we introduce a novel, multidisciplinary method to identify active molecules from purchasable chemical space. Starting from four small-molecule fragment complexes of protein kinase A (PKA), a template-based docking screen using Enamine's multibillion REAL Space was performed. A total of 93 molecules out of 106 selected compounds were successfully synthesized. Forty compounds were active in at least one validation assay with the most active follow-up having a 13,500-fold gain in affinity. Crystal structures for six of the most promising binders were rapidly obtained, verifying the binding mode. The overall success rate for this novel fragment-to-hit approach was 40%, accomplished in only 9 weeks. The results challenge the established fragment prescreening paradigm since the standard industrial filters for fragment hit identification in a thermal shift assay would have missed the initial fragments.
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Affiliation(s)
- Janis Müller
- CrystalsFirst GmbH, Marbacher Weg 6, 35037Marburg, Germany
| | - Raphael Klein
- BioSolveIT GmbH, An der Ziegelei 79, 53757Sankt Augustin, Germany
| | - Olga Tarkhanova
- Chemspace LLC, 85 Chervonotkatska Street, Suite 1, 03190Kyïv, Ukraine
| | | | - Petro Borysko
- Enamine Ltd., 78 Chervonotkatska Street 78, 02094Kyïv, Ukraine
| | - Stefan Merkl
- CrystalsFirst GmbH, Marbacher Weg 6, 35037Marburg, Germany
| | - Moritz Ruf
- CrystalsFirst GmbH, Marbacher Weg 6, 35037Marburg, Germany
| | | | - Marcus Gastreich
- BioSolveIT GmbH, An der Ziegelei 79, 53757Sankt Augustin, Germany
| | - Yurii S Moroz
- Chemspace LLC, 85 Chervonotkatska Street, Suite 1, 03190Kyïv, Ukraine
- Taras Shevchenko National University of Kyïv, 60 Volodymyrska Street 60, Kyïv01601, Ukraine
| | - Gerhard Klebe
- Department for Pharmaceutical Chemistry, Philipps-University Marburg, Marbacher Weg 6, 35037Marburg, Germany
| | - Serghei Glinca
- CrystalsFirst GmbH, Marbacher Weg 6, 35037Marburg, Germany
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Küçükali F, Neumann A, Van Dongen J, De Pooter T, Joris G, De Rijk P, Ohlei O, Dobricic V, Bos I, Vos SJB, Engelborghs S, De Roeck E, Vandenberghe R, Gabel S, Meersmans K, Tsolaki M, Verhey F, Martinez‐Lage P, Tainta M, Frisoni G, Blin O, Richardson JC, Bordet R, Scheltens P, Popp J, Peyratout G, Johannsen P, Frölich L, Freund‐Levi Y, Streffer J, Lovestone S, Legido‐Quigley C, Kate MT, Barkhof F, Zetterberg H, Bertram L, Strazisar M, Visser PJ, Van Broeckhoven C, Sleegers K. Whole‐exome rare‐variant analysis of Alzheimer's disease and related biomarker traits. Alzheimers Dement 2022. [DOI: 10.1002/alz.12842] [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] [Received: 04/06/2022] [Revised: 09/16/2022] [Accepted: 09/28/2022] [Indexed: 12/08/2022]
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Neumann A, Ohlei O, Dobricic V, Vos SJB, Zetterberg H, Visser PJ, Tijms B, Sleegers K, Bertram L. Genome‐wide association study on Alzheimer’s disease CSF profiles in the EMIF‐AD MBD and ADNI datasets. Alzheimers Dement 2022. [DOI: 10.1002/alz.062091] [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: 12/24/2022]
Affiliation(s)
- Alexander Neumann
- University of Antwerp Antwerp Belgium
- VIB Center for Molecular Neurology Antwerp Belgium
| | | | | | | | - Henrik Zetterberg
- University of Gothenburg Mölndal Sweden
- UCL Institute of Neurology London United Kingdom
- The Sahlgrenska Academy at the University of Gothenburg Mölndal Sweden
| | - Pieter Jelle Visser
- Alzheimer Centrum Limburg, Maastricht University Maastricht Netherlands
- VU Medical Centre Amsterdam Netherlands
| | | | - Kristel Sleegers
- University of Antwerp Antwerp Belgium
- VIB Center for Molecular Neurology Antwerp Belgium
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Neumann A, Dayani P, Yoldjian I, Zureik M, Froelich S, Weill A. Impact des mesures de minimisation des risques de méningiome liés à l'utilisation de l'acétate de cyprotérone en France. Rev Epidemiol Sante Publique 2022. [DOI: 10.1016/j.respe.2022.09.008] [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: 11/06/2022] Open
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Ditsch N, Pochert N, Schneider M, Köpke M, Mattmer A, Hunstiger S, Sagasser J, Kahl H, Metz A, Reiger M, Neumann A, Banys-Paluchowski M, Untch M, Dannecker C, Jeschke U, Traidl-Hoffmann C, Kühn T. Cytokine identification in seroma fluid after mastectomy in breast cancer patients – first results of SerMa pilot study subgroup. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01583-0] [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: 11/21/2022]
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Benesch M, Perwein T, Apfaltrer G, Langer T, Neumann A, Brecht IB, Schuhmann MU, Cario H, Frühwald MC, Vollert K, van Buiren M, Deng MY, Seitz A, Haberler C, Mynarek M, Kramm C, Sahm F, Robe PA, Dankbaar JW, Hoff KV, Warmuth-Metz M, Bison B. MR Imaging and Clinical Characteristics of Diffuse Glioneuronal Tumor with Oligodendroglioma-like Features and Nuclear Clusters. AJNR Am J Neuroradiol 2022; 43:1523-1529. [PMID: 36137663 PMCID: PMC9575520 DOI: 10.3174/ajnr.a7647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 06/28/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND AND PURPOSE Diffuse glioneuronal tumor with oligodendroglioma-like features and nuclear clusters (DGONC) is a new, molecularly defined glioneuronal CNS tumor type. The objective of the present study was to describe MR imaging and clinical characteristics of patients with DGONC. MATERIALS AND METHODS Preoperative MR images of 9 patients with DGONC (median age at diagnosis, 9.9 years; range, 4.2-21.8 years) were reviewed. RESULTS All tumors were located superficially in the frontal/temporal lobes and sharply delineated, displaying little mass effect. Near the circle of Willis, the tumors encompassed the arteries. All except one demonstrated characteristics of low-to-intermediate aggressiveness with high-to-intermediate T2WI and ADC signals and bone remodeling. Most tumors (n = 7) showed a homogeneous ground-glass aspect on T2-weighted and FLAIR images. On the basis of the original histopathologic diagnosis, 6 patients received postsurgical chemo-/radiotherapy, 2 were irradiated after surgery, and 1 patient underwent tumor resection only. At a median follow-up of 61 months (range, 10-154 months), 6 patients were alive in a first complete remission and 2 with stable disease 10 and 21 months after diagnosis. The only patient with progressive disease was lost to follow-up. Five-year overall and event-free survival was 100% and 86±13%, respectively. CONCLUSIONS This case series presents radiomorphologic characteristics highly predictive of DGONC that contrast with the typical aspects of the original histopathologic diagnoses. This presentation underlines the definition of DGONC as a separate entity, from a clinical perspective. Complete resection may be favorable for long-term disease control in patients with DGONC. The efficacy of nonsurgical treatment modalities should be evaluated in larger series.
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Affiliation(s)
- M Benesch
- From the Division of Pediatric Hematology and Oncology (M.B., T.P.), Department of Pediatrics and Adolescent Medicine
| | - T Perwein
- From the Division of Pediatric Hematology and Oncology (M.B., T.P.), Department of Pediatrics and Adolescent Medicine
| | - G Apfaltrer
- Division of Pediatric Radiology (G.A.), Department of Radiology, Medical University Graz, Graz, Austria
| | - T Langer
- Departments of Pediatrics (T.L.)
| | - A Neumann
- Neuroradiology (A.N.), University Medical Center Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - I B Brecht
- Pediatric Hematology and Oncology (I.B.B.), Children's Hospital
| | - M U Schuhmann
- Division of Pediatric Neurosurgery (M.U.S.), Department of Neurosurgery, Eberhard-Karls University Tübingen, Tübingen, Germany
| | - H Cario
- Department of Pediatrics and Adolescent Medicine (H.C.), Ulm University Medical Center, Ulm, Germany
| | | | - K Vollert
- Pediatric and Adolescent Medicine and Departments of Diagnostic and Interventional Radiology and Neuroradiology (K.V., B.B.), University Medical Center Augsburg, Augsburg, Germany
| | - M van Buiren
- Department of Pediatric Hematology and Oncology (M.v.B.), Center for Pediatrics, Medical Center-University of Freiburg, Freiburg, Germany
| | - M Y Deng
- Hopp Children's Cancer Center Heidelberg (M.Y.D., F.S.)
| | - A Seitz
- German Cancer Research Center and Department of Neuroradiology (A.S.)
| | - C Haberler
- Division of Neuropathology and Neurochemistry (C.H.), Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - M Mynarek
- Department of Pediatric Hematology and Oncology (M.M.)
- Mildred Scheel Cancer Career Center (M.M.), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - C Kramm
- Division of Pediatric Hematology and Oncology (C.K.), University Medical Center Göttingen, Göttingen, Germany
| | - F Sahm
- Hopp Children's Cancer Center Heidelberg (M.Y.D., F.S.)
- Department of Neuropathology (F.S.), Institute of Pathology
- Clinical Cooperation Unit Neuropathology (F.S.), German Cancer Consortium, German Cancer Research Center, Heidelberg University Hospital, Heidelberg, Germany
| | - P A Robe
- Department of Neurology and Neurosurgery (P.A.R.)
| | - J W Dankbaar
- Department of Radiology (J.W.D.), University Medical Center Utrecht, Utrecht, the Netherlands
| | - K V Hoff
- Department of Pediatric Oncology and Hematology (K.V.H.), Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - M Warmuth-Metz
- Institute of Diagnostic and Interventional Neuroradiology (M.W.-M.), University Hospital Würzburg, Würzburg, Germany
| | - B Bison
- Pediatric and Adolescent Medicine and Departments of Diagnostic and Interventional Radiology and Neuroradiology (K.V., B.B.), University Medical Center Augsburg, Augsburg, Germany
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Dall' Aglio L, Rijlaarsdam J, Mulder RH, Neumann A, Felix JF, Kok R, Bakermans-Kranenburg MJ, van Ijzendoorn MH, Tiemeier H, Cecil CAM. Epigenome-wide associations between observed maternal sensitivity and offspring DNA methylation: a population-based prospective study in children. Psychol Med 2022; 52:2481-2491. [PMID: 33267929 DOI: 10.1017/s0033291720004353] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Experimental work in animals has shown that DNA methylation (DNAm), an epigenetic mechanism regulating gene expression, is influenced by typical variation in maternal care. While emerging research in humans supports a similar association, studies to date have been limited to candidate gene and cross-sectional approaches, with a focus on extreme deviations in the caregiving environment. METHODS Here, we explored the prospective association between typical variation in maternal sensitivity and offspring epigenome-wide DNAm, in a population-based cohort of children (N = 235). Maternal sensitivity was observed when children were 3- and 4-years-old. DNAm, quantified with the Infinium 450 K array, was extracted at age 6 (whole blood). The influence of methylation quantitative trait loci (mQTLs), DNAm at birth (cord blood), and confounders (socioeconomic status, maternal psychopathology) was considered in follow-up analyses. RESULTS Genome-wide significant associations between maternal sensitivity and offspring DNAm were observed at 13 regions (p < 1.06 × 10-07), but not at single sites. Follow-up analyses indicated that associations at these regions were in part related to genetic factors, confounders, and baseline DNAm levels at birth, as evidenced by the presence of mQTLs at five regions and estimate attenuations. Robust associations with maternal sensitivity were found at four regions, annotated to ZBTB22, TAPBP, ZBTB12, and DOCK4. CONCLUSIONS These findings provide novel leads into the relationship between typical variation in maternal caregiving and offspring DNAm in humans, highlighting robust regions of associations, previously implicated in psychological and developmental problems, immune functioning, and stress responses.
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Affiliation(s)
- Lorenza Dall' Aglio
- Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Center Rotterdam-Sophia Children's Hospital, Rotterdam, The Netherlands
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jolien Rijlaarsdam
- Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Center Rotterdam-Sophia Children's Hospital, Rotterdam, The Netherlands
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Rosa H Mulder
- Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Center Rotterdam-Sophia Children's Hospital, Rotterdam, The Netherlands
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Alexander Neumann
- Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Center Rotterdam-Sophia Children's Hospital, Rotterdam, The Netherlands
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada
| | - Janine F Felix
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Rianne Kok
- Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | | | - Marinus H van Ijzendoorn
- Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, Rotterdam, The Netherlands
- Primary Care Unit School of Clinical Medicine, University of Cambridge, UK
| | - Henning Tiemeier
- Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Center Rotterdam-Sophia Children's Hospital, Rotterdam, The Netherlands
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, USA
| | - Charlotte A M Cecil
- Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Center Rotterdam-Sophia Children's Hospital, Rotterdam, The Netherlands
- Department of Psychology, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, 2333 ZC, Leiden, The Netherlands
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Neumann A, Nolte IM, Pappa I, Ahluwalia TS, Pettersson E, Rodriguez A, Whitehouse A, van Beijsterveldt CEM, Benyamin B, Hammerschlag AR, Helmer Q, Karhunen V, Krapohl E, Lu Y, van der Most PJ, Palviainen T, St Pourcain B, Seppälä I, Suarez A, Vilor-Tejedor N, Tiesler CMT, Wang C, Wills A, Zhou A, Alemany S, Bisgaard H, Bønnelykke K, Davies GE, Hakulinen C, Henders AK, Hyppönen E, Stokholm J, Bartels M, Hottenga JJ, Heinrich J, Hewitt J, Keltikangas-Järvinen L, Korhonen T, Kaprio J, Lahti J, Lahti-Pulkkinen M, Lehtimäki T, Middeldorp CM, Najman JM, Pennell C, Power C, Oldehinkel AJ, Plomin R, Räikkönen K, Raitakari OT, Rimfeld K, Sass L, Snieder H, Standl M, Sunyer J, Williams GM, Bakermans-Kranenburg MJ, Boomsma DI, van IJzendoorn MH, Hartman CA, Tiemeier H. A genome-wide association study of total child psychiatric problems scores. PLoS One 2022; 17:e0273116. [PMID: 35994476 PMCID: PMC9394806 DOI: 10.1371/journal.pone.0273116] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 12/15/2021] [Accepted: 08/02/2022] [Indexed: 11/25/2022] Open
Abstract
Substantial genetic correlations have been reported across psychiatric disorders and numerous cross-disorder genetic variants have been detected. To identify the genetic variants underlying general psychopathology in childhood, we performed a genome-wide association study using a total psychiatric problem score. We analyzed 6,844,199 common SNPs in 38,418 school-aged children from 20 population-based cohorts participating in the EAGLE consortium. The SNP heritability of total psychiatric problems was 5.4% (SE = 0.01) and two loci reached genome-wide significance: rs10767094 and rs202005905. We also observed an association of SBF2, a gene associated with neuroticism in previous GWAS, with total psychiatric problems. The genetic effects underlying the total score were shared with common psychiatric disorders only (attention-deficit/hyperactivity disorder, anxiety, depression, insomnia) (rG > 0.49), but not with autism or the less common adult disorders (schizophrenia, bipolar disorder, or eating disorders) (rG < 0.01). Importantly, the total psychiatric problem score also showed at least a moderate genetic correlation with intelligence, educational attainment, wellbeing, smoking, and body fat (rG > 0.29). The results suggest that many common genetic variants are associated with childhood psychiatric symptoms and related phenotypes in general instead of with specific symptoms. Further research is needed to establish causality and pleiotropic mechanisms between related traits.
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Affiliation(s)
- Alexander Neumann
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center, Rotterdam, The Netherlands
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada
| | - Ilja M. Nolte
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Irene Pappa
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Tarunveer S. Ahluwalia
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
- Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Erik Pettersson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Alina Rodriguez
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
| | - Andrew Whitehouse
- Telethon Kids Institute, University of Western Australia, Perth, Australia
| | | | - Beben Benyamin
- Australian Centre for Precision Health, University of South Australia Cancer Research Institute, School of Health Sciences, University of South Australia, Adelaide, Australia
- South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Anke R. Hammerschlag
- Child Health Research Centre, University of Queensland, Brisbane, QLD, Australia
- Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Amsterdam, The Netherlands
| | - Quinta Helmer
- Netherlands Twin Register, Dept Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands
| | - Ville Karhunen
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
- Centre for Life-Course Health Research, University of Oulu, Oulu, Finland
| | - Eva Krapohl
- Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Yi Lu
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Peter J. van der Most
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Teemu Palviainen
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Beate St Pourcain
- MRC Integrative Epidemiology Unit, Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
- Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, The Netherland
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Ilkka Seppälä
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, Finland
- Department of Clinical Chemistry, Finnish Cardiovascular Research Center—Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Anna Suarez
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Natalia Vilor-Tejedor
- Center for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- BarcelonaBeta Brain Research Center (BBRC)–Pasqual Maragall Foundation, Barcelona, Spain
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, The Netherlands
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Carla M. T. Tiesler
- Institute of Epidemiology, Helmholtz Zentrum München—German Research Center for Environmental Health, Neuherberg, Germany
- LMU–Ludwig-Maximilians-Universität Munich, Div. Metabolic and Nutritional Medicine, Dr. von Hauner Children’s Hospital, University of Munich Medical Center, Munich, Germany
| | - Carol Wang
- School of Medicine and Public Health, Faculty of Medicine and Health, The University of Newcastle, Newcastle, New South Wales, Australia
| | - Amanda Wills
- Division of Substance Dependence, Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, United States of America
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO, United States of America
| | - Ang Zhou
- Australian Centre for Precision Health, University of South Australia Cancer Research Institute, School of Health Sciences, University of South Australia, Adelaide, Australia
- South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Silvia Alemany
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- CIBER Epidemiology and Public Health (CIBERESP), Barcelona, Spain
| | - Hans Bisgaard
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Klaus Bønnelykke
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Gareth E. Davies
- Avera Institute for Human Genetics, Sioux Falls, South Dakota, United States of America
| | - Christian Hakulinen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Anjali K. Henders
- Institute of Molecular Bioscience, University of Queensland, Brisbane, QLD, Australia
| | - Elina Hyppönen
- Australian Centre for Precision Health, University of South Australia Cancer Research Institute, School of Health Sciences, University of South Australia, Adelaide, Australia
- South Australian Health and Medical Research Institute, Adelaide, Australia
- Population, Policy and Practice, UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Jakob Stokholm
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
- Department of Pediatrics, Naestved Hospital, Naestved, Denmark
| | - Meike Bartels
- Netherlands Twin Register, Dept Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands
| | - Jouke-Jan Hottenga
- Netherlands Twin Register, Dept Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands
| | - Joachim Heinrich
- LMU–Ludwig-Maximilians-Universität Munich, Div. Metabolic and Nutritional Medicine, Dr. von Hauner Children’s Hospital, University of Munich Medical Center, Munich, Germany
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - John Hewitt
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO, United States of America
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, United States of America
| | | | - Tellervo Korhonen
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Jaakko Kaprio
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Jari Lahti
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Marius Lahti-Pulkkinen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, Finland
- Department of Clinical Chemistry, Finnish Cardiovascular Research Center—Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Christel M. Middeldorp
- Child Health Research Centre, University of Queensland, Brisbane, QLD, Australia
- Biological Psychology, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Child and Youth Mental Health Service, Children’s Health Queensland Hospital and Health Service, Brisbane, QLD, Australia
| | - Jackob M. Najman
- Public Health, University of Queensland, Brisbane, QLD, Australia
| | - Craig Pennell
- School of Medicine and Public Health, Faculty of Medicine and Health, The University of Newcastle, Newcastle, New South Wales, Australia
| | - Chris Power
- Population, Policy and Practice, UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Albertine J. Oldehinkel
- Interdisciplinary Center Psychopathology and Emotion Regulation (IPCE), University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Robert Plomin
- Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Katri Räikkönen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Olli T. Raitakari
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
| | - Kaili Rimfeld
- Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Lærke Sass
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
- Department of Pediatrics, Naestved Hospital, Naestved, Denmark
| | - Harold Snieder
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Marie Standl
- LMU–Ludwig-Maximilians-Universität Munich, Div. Metabolic and Nutritional Medicine, Dr. von Hauner Children’s Hospital, University of Munich Medical Center, Munich, Germany
| | - Jordi Sunyer
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- CIBER Epidemiology and Public Health (CIBERESP), Barcelona, Spain
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Gail M. Williams
- Child and Youth Mental Health Service, Children’s Health Queensland Hospital and Health Service, Brisbane, QLD, Australia
| | | | - Dorret I. Boomsma
- Netherlands Twin Register, Dept Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands
| | | | - Catharina A. Hartman
- Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Henning Tiemeier
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Social and Behavioral Science, Harvard TH Chan School of Public Health, Boston, MA, United States of America
- * E-mail:
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Schwarze K, Neumann A, Schäfer K, Brannath W, Altin S, Höhne PH, Schlierenkamp S, Diekmann S, Mathmann P, Gietmann C, Wasmuth S, Matulat P, Prein L, Neumann K. „HörGeist – Ein Programm zur
niedrigschwelligen Identifikation und Behandlung von
Hörstörungen bei Menschen mit geistiger Behinderung“
– Studienprotokoll. Das Gesundheitswesen 2022. [DOI: 10.1055/s-0042-1753797] [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: 12/12/2022]
Affiliation(s)
- K Schwarze
- Universität Duisburg-Essen, Lehrstuhl für
Medizinmanagement, Essen, Deutschland
| | - A Neumann
- Universität Duisburg-Essen, Lehrstuhl für
Medizinmanagement, Essen, Deutschland
| | - K Schäfer
- Universität zu Köln, Lehrstuhl für
Audiopädagogik, Köln, Deutschland
| | - W Brannath
- Universität Bremen, Kompetenzzentrum für Klinische
Studien, Bremen, Deutschland
| | - S Altin
- AOK Rheinland-Hamburg – Die Gesundheitskasse.,
Düsseldorf, Deutschland
| | - P-H Höhne
- AOK Rheinland-Hamburg – Die Gesundheitskasse.,
Düsseldorf, Deutschland
| | - S Schlierenkamp
- Essener Forschungsinstitut für Medizinmanagement GmbH, Essen,
Deutschland
| | - S Diekmann
- Essener Forschungsinstitut für Medizinmanagement GmbH, Essen,
Deutschland
| | - P Mathmann
- Universitätsklinikum Münster, Klinik für
Phoniatrie und Pädaudiologie, Münster, Deutschland
| | - C Gietmann
- Universitätsklinikum Münster, Klinik für
Phoniatrie und Pädaudiologie, Münster, Deutschland
| | - S Wasmuth
- Universitätsklinikum Münster, Klinik für
Phoniatrie und Pädaudiologie, Münster, Deutschland
| | - P Matulat
- Universitätsklinikum Münster, Klinik für
Phoniatrie und Pädaudiologie, Münster, Deutschland
| | - L Prein
- Universitätsklinikum Münster, Klinik für
Phoniatrie und Pädaudiologie, Münster, Deutschland
| | - K Neumann
- Universitätsklinikum Münster, Klinik für
Phoniatrie und Pädaudiologie, Münster, Deutschland
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Wegner F, Schwenke H, von Gladiß A, Behrends A, Friedrich T, Lüdtke-Buzug K, Neumann A, Barkhausen J, Buzug MT, Bakenecker CA. Steuerung und Visualisierung eines endovaskulären Mikroroboters mittels Magnetic Particle Imaging. ROFO-FORTSCHR RONTG 2022. [DOI: 10.1055/s-0042-1749779] [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: 11/07/2022]
Affiliation(s)
- F Wegner
- UKSH, Campus Lübeck, Klinik f. Radiologie u. Nuklearmedizin, Lübeck
| | - H Schwenke
- Institut für Neuroradiologie, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck
| | - A von Gladiß
- Institut für Computervisualistik, Universität Koblenz-Landau, Koblenz
| | - A Behrends
- Fraunhofer Einrichtung für Individualisierte und Zell-basierte Medizintechnik, Lübeck
| | - T Friedrich
- Fraunhofer Einrichtung für Individualisierte und Zell-basierte Medizintechnik, Lübeck
| | | | | | - J Barkhausen
- Klinik für Radiologie und Nuklearmedizin, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck
| | - M T Buzug
- Fraunhofer Einrichtung für Individualisierte und Zell-basierte Medizintechnik, Lübeck
| | - C A Bakenecker
- Fraunhofer Einrichtung für Individualisierte und Zell-basierte Medizintechnik, Lübeck
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Topper B, Neumann A, Albrecht AR, Flores AS, Kuhn S, Häßner D, Hein S, Hupel C, Nold J, Haarlammert N, Schreiber T, Sheik-Bahae M, Mafi A. Laser cooling experiments to measure the quantum efficiency of Yb-doped silica fibers. Opt Lett 2022; 47:3608-3611. [PMID: 35838742 DOI: 10.1364/ol.463157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
A detailed investigation into the wavelength-dependent cooling efficiencies of two ultra-pure large core diameter ytterbium-doped silica fibers is carried out by means of the laser-induced thermal modulation spectroscopy (LITMoS) method. From these measurements, an external quantum efficiency of 0.99 is obtained for both fibers. Optimal cooling is seen for pump wavelengths between 1032 and 1035 nm. The crossover wavelength from heating to cooling is identified to be between 1018 and 1021 nm. The fiber with higher Yb3+ ion density exhibits better cooling, seen by the input power normalized temperature differential.
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Wang X, Sasidharan V, Neumann A, Zarkesh-Ha P, Brueck SRJ. Visible (400- to 700-nm) chirped-grating-coupled waveguide spectrometer. Opt Express 2022; 30:25050-25060. [PMID: 36237044 DOI: 10.1364/oe.462781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 06/09/2022] [Indexed: 06/16/2023]
Abstract
An integrable on-chip spectrometer, based on a transversely-chirped-grating waveguide-coupler for the 400- to 700-nm visible spectral range is demonstrated. For a fixed angle of incidence, the coupling wavelength is dependent on the local grating period and the waveguide structure. The transversely-chirped-input grating is fabricated on a SiO2-Si3N4-SiO2 waveguide atop a Si substrate by interferometric lithography in two sections on a single silicon substrate. A uniform period grating, separated from the input coupler by a propagation region, is provided for out-coupling to a 2048 element CMOS detector array. The incident light with wavelength spanning 400- to 700-nm is coupled into waveguide at 33.5° through the chirped grating coupler. A resolution of ∼ 1.2 nm is demonstrated without any signal processing reconstruction.
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Jami ES, Hammerschlag AR, Ip HF, Allegrini AG, Benyamin B, Border R, Diemer EW, Jiang C, Karhunen V, Lu Y, Lu Q, Mallard TT, Mishra PP, Nolte IM, Palviainen T, Peterson RE, Sallis HM, Shabalin AA, Tate AE, Thiering E, Vilor-Tejedor N, Wang C, Zhou A, Adkins DE, Alemany S, Ask H, Chen Q, Corley RP, Ehli EA, Evans LM, Havdahl A, Hagenbeek FA, Hakulinen C, Henders AK, Hottenga JJ, Korhonen T, Mamun A, Marrington S, Neumann A, Rimfeld K, Rivadeneira F, Silberg JL, van Beijsterveldt CE, Vuoksimaa E, Whipp AM, Tong X, Andreassen OA, Boomsma DI, Brown SA, Burt SA, Copeland W, Dick DM, Harden KP, Harris KM, Hartman CA, Heinrich J, Hewitt JK, Hopfer C, Hypponen E, Jarvelin MR, Kaprio J, Keltikangas-Järvinen L, Klump KL, Krauter K, Kuja-Halkola R, Larsson H, Lehtimäki T, Lichtenstein P, Lundström S, Maes HH, Magnus P, Munafò MR, Najman JM, Njølstad PR, Oldehinkel AJ, Pennell CE, Plomin R, Reichborn-Kjennerud T, Reynolds C, Rose RJ, Smolen A, Snieder H, Stallings M, Standl M, Sunyer J, Tiemeier H, Wadsworth SJ, Wall TL, Whitehouse AJO, Williams GM, Ystrøm E, Nivard MG, Bartels M, Middeldorp CM. Genome-wide Association Meta-analysis of Childhood and Adolescent Internalizing Symptoms. J Am Acad Child Adolesc Psychiatry 2022; 61:934-945. [PMID: 35378236 PMCID: PMC10859168 DOI: 10.1016/j.jaac.2021.11.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/15/2021] [Accepted: 03/25/2022] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To investigate the genetic architecture of internalizing symptoms in childhood and adolescence. METHOD In 22 cohorts, multiple univariate genome-wide association studies (GWASs) were performed using repeated assessments of internalizing symptoms, in a total of 64,561 children and adolescents between 3 and 18 years of age. Results were aggregated in meta-analyses that accounted for sample overlap, first using all available data, and then using subsets of measurements grouped by rater, age, and instrument. RESULTS The meta-analysis of overall internalizing symptoms (INToverall) detected no genome-wide significant hits and showed low single nucleotide polymorphism (SNP) heritability (1.66%, 95% CI = 0.84-2.48%, neffective = 132,260). Stratified analyses indicated rater-based heterogeneity in genetic effects, with self-reported internalizing symptoms showing the highest heritability (5.63%, 95% CI = 3.08%-8.18%). The contribution of additive genetic effects on internalizing symptoms appeared to be stable over age, with overlapping estimates of SNP heritability from early childhood to adolescence. Genetic correlations were observed with adult anxiety, depression, and the well-being spectrum (|rg| > 0.70), as well as with insomnia, loneliness, attention-deficit/hyperactivity disorder, autism, and childhood aggression (range |rg| = 0.42-0.60), whereas there were no robust associations with schizophrenia, bipolar disorder, obsessive-compulsive disorder, or anorexia nervosa. CONCLUSION Genetic correlations indicate that childhood and adolescent internalizing symptoms share substantial genetic vulnerabilities with adult internalizing disorders and other childhood psychiatric traits, which could partially explain both the persistence of internalizing symptoms over time and the high comorbidity among childhood psychiatric traits. Reducing phenotypic heterogeneity in childhood samples will be key in paving the way to future GWAS success.
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Affiliation(s)
- Eshim S Jami
- Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; University College London, London, United Kingdom.
| | - Anke R Hammerschlag
- Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Amsterdam Public Health Research Institute, Amsterdam, the Netherlands; Child Health Research Centre, University of Queensland, Brisbane, Australia
| | - Hill F Ip
- Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Andrea G Allegrini
- University College London, London, United Kingdom; Social, Genetic and Developmental Psychiatry Centre, King's College London, London, United Kingdom
| | - Beben Benyamin
- University of South Australia, Adelaide, Australia; South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Richard Border
- Institute for Behavioral Genetics, University of Colorado Boulder
| | - Elizabeth W Diemer
- Erasmus University Medical Center, Rotterdam, the Netherlands; Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Chang Jiang
- Michigan State University, East Lansing; University of Florida, Gainesville
| | | | - Yi Lu
- Karolinska Institutet, Stockholm, Sweden
| | - Qing Lu
- Michigan State University, East Lansing
| | | | - Pashupati P Mishra
- Tampere University, Tampere, Finland, and Fimlab Laboratories, Tampere, Finland
| | - Ilja M Nolte
- University of Groningen, University Medical Center Groningen, the Netherlands
| | - Teemu Palviainen
- Institute for Molecular Medicine Finland - FIMM, University of Helsinki, Finland
| | - Roseann E Peterson
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond
| | - Hannah M Sallis
- School of Psychological Science, University of Bristol, United Kingdom, and Medical Research Council (MRC) Integrative Epidemiology Unit, University of Bristol, United Kingdom; Centre for Academic Mental Health, Population Health Sciences, University of Bristol, United Kingdom
| | | | | | - Elisabeth Thiering
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; Ludwig-Maximilians-Universität, Munich, Germany
| | - Natàlia Vilor-Tejedor
- Erasmus University Medical Center, Rotterdam, the Netherlands; Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain; BarcelonaBeta Brain Research Center, (BBRC) Pasqual Maragall Foundation, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Carol Wang
- School of Medicine and Public Health, University of Newcastle, Australia
| | - Ang Zhou
- University of South Australia, Adelaide, Australia
| | | | - Silvia Alemany
- Universitat Pompeu Fabra (UPF), Barcelona, Spain; SGlobal, Barcelona Institute of Global Health, Barcelona, Spain; and CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Helga Ask
- Norwegian Institute of Public Health, Oslo, Norway
| | - Qi Chen
- Karolinska Institutet, Stockholm, Sweden
| | - Robin P Corley
- Institute for Behavioral Genetics, University of Colorado Boulder
| | - Erik A Ehli
- Avera Institute for Human Genetics, Avera McKennan Hospital & University Health Center, Sioux Falls, South Dakota
| | - Luke M Evans
- Institute for Behavioral Genetics, University of Colorado Boulder
| | | | - Fiona A Hagenbeek
- Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | | | - Anjali K Henders
- Institute for Molecular Biosciences, University of Queensland, Brisbane, Australia
| | | | - Tellervo Korhonen
- Institute for Molecular Medicine Finland - FIMM, University of Helsinki, Finland
| | - Abdullah Mamun
- Institute for Social Science Research, University of Queensland, Brisbane, Australia
| | - Shelby Marrington
- School of Public Health, University of Queensland, Brisbane, Australia
| | - Alexander Neumann
- Erasmus University Medical Center, Rotterdam, the Netherlands; Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada
| | - Kaili Rimfeld
- Social, Genetic and Developmental Psychiatry Centre, King's College London, London, United Kingdom
| | | | - Judy L Silberg
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond
| | | | - Eero Vuoksimaa
- Institute for Molecular Medicine Finland - FIMM, University of Helsinki, Finland
| | - Alyce M Whipp
- Institute for Molecular Medicine Finland - FIMM, University of Helsinki, Finland
| | - Xiaoran Tong
- Michigan State University, East Lansing; University of Florida, Gainesville
| | - Ole A Andreassen
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo, Oslo, Norway; and Oslo University Hospital, Norway
| | | | | | | | | | | | | | | | - Catharina A Hartman
- University of Groningen, University Medical Center Groningen, the Netherlands
| | - Joachim Heinrich
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; Ludwig-Maximilians-Universität, Munich, Germany; Melbourne School of Population and Global Health, The University of Melbourne, Victoria, Australia
| | - John K Hewitt
- Institute for Behavioral Genetics, University of Colorado Boulder
| | | | - Elina Hypponen
- University of South Australia, Adelaide, Australia; South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Marjo-Riitta Jarvelin
- MRC-PHE Centre for Environment and Health, Imperial College London, United Kingdom; the Center for Life Course Health Research, University of Oulu, Oulu, Finland; and Oulu University Hospital, Oulu, Finland
| | - Jaakko Kaprio
- Institute for Molecular Medicine Finland - FIMM, University of Helsinki, Finland
| | | | | | | | | | | | - Terho Lehtimäki
- Tampere University, Tampere, Finland, and Fimlab Laboratories, Tampere, Finland
| | | | | | - Hermine H Maes
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond; Massey Cancer Center, Virginia Commonwealth University, Richmond
| | - Per Magnus
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Marcus R Munafò
- School of Psychological Science, University of Bristol, United Kingdom, and Medical Research Council (MRC) Integrative Epidemiology Unit, University of Bristol, United Kingdom; NIHR Biomedical Research Centre at the University Hospitals Bristol NHS Foundation Trust and the University of Bristol, United Kingdom
| | - Jake M Najman
- School of Public Health, University of Queensland, Brisbane, Australia
| | - Pål R Njølstad
- Center for Diabetes Research, University of Bergen, Bergen, Norway, and Haukeland University Hospital, Bergen, Norway
| | | | - Craig E Pennell
- School of Medicine and Public Health, University of Newcastle, Australia
| | - Robert Plomin
- Social, Genetic and Developmental Psychiatry Centre, King's College London, London, United Kingdom
| | | | - Chandra Reynolds
- University of California at Riverside, California, and Indiana University, Bloomington, Indiana
| | - Richard J Rose
- University of California at Riverside, California, and Indiana University, Bloomington, Indiana
| | - Andrew Smolen
- Institute for Behavioral Genetics, University of Colorado Boulder
| | - Harold Snieder
- University of Groningen, University Medical Center Groningen, the Netherlands
| | | | - Marie Standl
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Jordi Sunyer
- Universitat Pompeu Fabra (UPF), Barcelona, Spain; SGlobal, Barcelona Institute of Global Health, Barcelona, Spain; and CIBER Epidemiología y Salud Pública (CIBERESP), Spain; IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Henning Tiemeier
- Erasmus University Medical Center, Rotterdam, the Netherlands; Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | | | | | | | - Gail M Williams
- School of Public Health, University of Queensland, Brisbane, Australia
| | - Eivind Ystrøm
- Norwegian Institute of Public Health, Oslo, Norway; PROMENTA Research Center, University of Oslo, Norway
| | | | - Meike Bartels
- Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | - Christel M Middeldorp
- Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Child Health Research Centre, University of Queensland, Brisbane, Australia; Child and Youth Mental Health Service, Children's Health Queensland Hospital and Health Service, Brisbane, Australia
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Kornak U, Saha N, Keren B, Neumann A, Taylor Tavares AL, Piard J, Kopp J, Rodrigues Alves JG, Rodríguez de Los Santos M, El Choubassi N, Ehmke N, Jäger M, Spielmann M, Pantel JT, Lejeune E, Fauler B, Mielke T, Hecht J, Meierhofer D, Strom TM, Laugel V, Brice A, Mundlos S, Bertoli-Avella A, Bauer P, Heyd F, Boute O, Dupont J, Depienne C, Van Maldergem L, Fischer-Zirnsak B. Alternative splicing of BUD13 determines the severity of a developmental disorder with lipodystrophy and progeroid features. Genet Med 2022; 24:1927-1940. [PMID: 35670808 DOI: 10.1016/j.gim.2022.05.004] [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: 02/14/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 10/18/2022] Open
Abstract
PURPOSE In this study we aimed to identify the molecular genetic cause of a progressive multisystem disease with prominent lipodystrophy. METHODS In total, 5 affected individuals were investigated using exome sequencing. Dermal fibroblasts were characterized using RNA sequencing, proteomics, immunoblotting, immunostaining, and electron microscopy. Subcellular localization and rescue studies were performed. RESULTS We identified a lipodystrophy phenotype with a typical facial appearance, corneal clouding, achalasia, progressive hearing loss, and variable severity. Although 3 individuals showed stunted growth, intellectual disability, and died within the first decade of life (A1, A2, and A3), 2 are adults with normal intellectual development (A4 and A5). All individuals harbored an identical homozygous nonsense variant affecting the retention and splicing complex component BUD13. The nucleotide substitution caused alternative splicing of BUD13 leading to a stable truncated protein whose expression positively correlated with disease expression and life expectancy. In dermal fibroblasts, we found elevated intron retention, a global reduction of spliceosomal proteins, and nuclei with multiple invaginations, which were more pronounced in A1, A2, and A3. Overexpression of both BUD13 isoforms normalized the nuclear morphology. CONCLUSION Our results define a hitherto unknown syndrome and show that the alternative splice product converts a loss-of-function into a hypomorphic allele, thereby probably determining the severity of the disease and the survival of affected individuals.
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Affiliation(s)
- Uwe Kornak
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany; Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany.
| | - Namrata Saha
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany; Berlin-Brandenburg School for Regenerative Therapies, Charité-Universtitätsmedizin Berlin, Germany; Max Planck International Research Network on Aging, Max Planck Society, Rostock, Germany
| | - Boris Keren
- Department of Genetics, DMU BioGem, Assistance Publique - Hôpitaux de Paris, Hôpital Universitaire Pitié-Salpêtrière, Paris, France
| | - Alexander Neumann
- Laboratory of RNA Biochemistry, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany; Omiqa Bioinformatics, Berlin, Germany
| | - Ana Lisa Taylor Tavares
- East Anglian Medical Genetics Service, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom; Genomics England, London, United Kingdom
| | - Juliette Piard
- Centre de Génétique Humaine, Université de Franche-Comté, Besançon, France.
| | - Johannes Kopp
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany; Institute of Chemistry and Biochemistry, Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - João Guilherme Rodrigues Alves
- Serviço de Genética, Departamento de Pediatria, Hospital de Santa Maria, Centro Hospital Universitário Lisboa Norte, Lisboa, Portugal
| | - Miguel Rodríguez de Los Santos
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany; Berlin-Brandenburg School for Regenerative Therapies, Charité-Universtitätsmedizin Berlin, Germany
| | - Naji El Choubassi
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Nadja Ehmke
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Marten Jäger
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; BIH Genomics Core Unit, Berlin Institute of Health (BIH), Berlin, Germany
| | - Malte Spielmann
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany; Institute of Human Genetics, University of Lübeck, Lübeck, Germany
| | - Jean Tori Pantel
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Elodie Lejeune
- Department of Genetics, DMU BioGem, Assistance Publique - Hôpitaux de Paris, Hôpital Universitaire Pitié-Salpêtrière, Paris, France
| | - Beatrix Fauler
- Microscopy and Cryo-electron Microscopy Group, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Thorsten Mielke
- Microscopy and Cryo-electron Microscopy Group, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Jochen Hecht
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - David Meierhofer
- Mass-Spectrometry Facility, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Tim M Strom
- Institute of Human Genetics, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Vincent Laugel
- Service de Pédiatrie 1, Hôpital de Hautepierre, Hôpitaux Universitaires de Strasbourg, Strasbourg, France; Laboratoire de Génétique Médicale, Institut de Génétique Médicale d'Alsace, Faculté de Médecine de Strasbourg, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Alexis Brice
- Department of Genetics, DMU BioGem, Assistance Publique - Hôpitaux de Paris, Hôpital Universitaire Pitié-Salpêtrière, Paris, France; Institut du Cerveau - Paris Brain Institute - ICM, Inserm, Centre National de la Recherche Scientifique, Hôpital Pitié-Salpêtrière, Sorbonne Université, Paris, France
| | - Stefan Mundlos
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | | | - Peter Bauer
- CENTOGENE GmbH, Rostock, Germany; Department of Medicine Clinic III, Hematology, Oncology and Palliative Medicine, Rostock University Medical Center, Rostock, Germany
| | - Florian Heyd
- Laboratory of RNA Biochemistry, Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Odile Boute
- Génétique Clinique, Centre Hospitalier Universitaire de Lille, Hôpital Jeanne de Flandre, Lille, France.
| | - Juliette Dupont
- Serviço de Genética, Departamento de Pediatria, Hospital de Santa Maria, Centro Hospital Universitário Lisboa Norte, Lisboa, Portugal.
| | - Christel Depienne
- Institut du Cerveau - Paris Brain Institute - ICM, Inserm, Centre National de la Recherche Scientifique, Hôpital Pitié-Salpêtrière, Sorbonne Université, Paris, France; Institute of Human Genetics, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Lionel Van Maldergem
- Centre de Génétique Humaine, Université de Franche-Comté, Besançon, France; Center of Clinical investigation 1431, National Institute of Health and Medical Research (INSERM), CHU, Besancon, France
| | - Björn Fischer-Zirnsak
- Institute of Medical Genetics and Human Genetics, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany; Research Group Development and Disease, Max Planck Institute for Molecular Genetics, Berlin, Germany.
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Neumann A, Jolicoeur‐Martineau A, Szekely E, Sallis HM, O’Donnel K, Greenwood CM, Levitan R, Meaney MJ, Wazana A, Evans J, Tiemeier H. Combined polygenic risk scores of different psychiatric traits predict general and specific psychopathology in childhood. J Child Psychol Psychiatry 2022; 63:636-645. [PMID: 34389974 PMCID: PMC9291767 DOI: 10.1111/jcpp.13501] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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] [Accepted: 06/14/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND Polygenic risk scores (PRSs) operationalize genetic propensity toward a particular mental disorder and hold promise as early predictors of psychopathology, but before a PRS can be used clinically, explanatory power must be increased and the specificity for a psychiatric domain established. To enable early detection, it is crucial to study these psychometric properties in childhood. We examined whether PRSs associate more with general or with specific psychopathology in school-aged children. Additionally, we tested whether psychiatric PRSs can be combined into a multi-PRS score for improved performance. METHODS We computed 16 PRSs based on GWASs of psychiatric phenotypes, but also neuroticism and cognitive ability, in mostly adult populations. Study participants were 9,247 school-aged children from three population-based cohorts of the DREAM-BIG consortium: ALSPAC (UK), The Generation R Study (Netherlands), and MAVAN (Canada). We associated each PRS with general and specific psychopathology factors, derived from a bifactor model based on self-report and parental, teacher, and observer reports. After fitting each PRS in separate models, we also tested a multi-PRS model, in which all PRSs are entered simultaneously as predictors of the general psychopathology factor. RESULTS Seven PRSs were associated with the general psychopathology factor after multiple testing adjustment, two with specific externalizing and five with specific internalizing psychopathology. PRSs predicted general psychopathology independently of each other, with the exception of depression and depressive symptom PRSs. Most PRSs associated with a specific psychopathology domain, were also associated with general child psychopathology. CONCLUSIONS The results suggest that PRSs based on current GWASs of psychiatric phenotypes tend to be associated with general psychopathology, or both general and specific psychiatric domains, but not with one specific psychopathology domain only. Furthermore, PRSs can be combined to improve predictive ability. PRS users should therefore be conscious of nonspecificity and consider using multiple PRSs simultaneously, when predicting psychiatric disorders.
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Affiliation(s)
- Alexander Neumann
- Department of Child and Adolescent PsychiatryErasmus University Medical CenterRotterdamThe Netherlands,Lady Davis Institute for Medical ResearchJewish General HospitalMontrealQCCanada,VIB Center for Molecular NeurologyVIBAntwerpBelgium,Department of Biomedical SciencesUniversity of AntwerpAntwerpBelgium
| | | | - Eszter Szekely
- Lady Davis Institute for Medical ResearchJewish General HospitalMontrealQCCanada,Department of PsychiatryMcGill University Faculty of MedicineMontrealQCCanada
| | - Hannah M. Sallis
- MRC Integrative Epidemiology UnitUniversity of BristolBristolUK,Centre for Academic Mental Health, Population Health SciencesBristol Medical SchoolUniversity of BristolBristolUK,School of Psychological ScienceUniversity of BristolBristolUK
| | - Kieran O’Donnel
- Department of Psychiatry and Sackler Program for Epigenetics and PsychobiologyMcGill UniversityMontrealQCCanada,Ludmer Centre for Neuroinformatics and Mental HealthMcGill UniversityMontrealQCCanada
| | - Celia M.T. Greenwood
- Lady Davis Institute for Medical ResearchJewish General HospitalMontrealQCCanada,Departments of Oncology, Human Genetics, and Epidemiology, Biostatistics and Occupational HealthMcGill UniversityMontrealQCCanada
| | - Robert Levitan
- Centre for Addiction and Mental HealthTorontoONCanada,Department of PsychiatryUniversity of TorontoTorontoONCanada
| | - Michael J. Meaney
- Department of PsychiatryMcGill University Faculty of MedicineMontrealQCCanada,Douglas Mental Health InstituteMontrealQCCanada,Singapore Institute for Clinical SciencesSingapore CitySingapore
| | - Ashley Wazana
- Lady Davis Institute for Medical ResearchJewish General HospitalMontrealQCCanada,Department of PsychiatryMcGill University Faculty of MedicineMontrealQCCanada,Centre for Child Development and Mental HealthJewish General HospitalMontrealQCCanada
| | - Jonathan Evans
- Centre for Academic Mental Health, Population Health SciencesBristol Medical SchoolUniversity of BristolBristolUK
| | - Henning Tiemeier
- Department of Child and Adolescent PsychiatryErasmus University Medical CenterRotterdamThe Netherlands,Department of Social and Behavioral SciencesHarvard T. H. Chan School of Public HealthBostonMAUSA
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Raczkiewicz V, Neumann A, Buchberger B. Influence of assisted outpatient living in people with intellectual disabilities on individual quality of life and resilience – design of a doctoral thesis. Eur Psychiatry 2022. [PMCID: PMC9566984 DOI: 10.1192/j.eurpsy.2022.1560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction
The research field of disability and mental health is politically and socially relevant, because the psychological well-being of people with intellectual disabilities has often been trivialized in therapy and legislation. Since the pursuit of mental health is coming into focus due to removal of stigma and emerging awareness, people with disabilities must have equal opportunities to choose their place of residence and get suitable psychosocial support. Objectives
Our aim is to investigate the influence of assisted outpatient treatment (AOT) on the quality of life and resilience of people with intellectual disabilities who are living self-determined. Methods A participatory mixed-methods design is chosen as it enables the greatest possible standardization and allows a high flexibility. The project will be divided into three parts: A systematic literature search to gain knowledge about the field and to estimate the sample size, a pre-post-comparison of the WHOQOL-BREF to evaluate AOT in terms of self-perceived quality of life and a focus-group of handicapped people to reflect the study results with attention on resilience. Results To foster the doctoral thesis, several questions can be discussed: 1) How is the relation of disability and mental health to be described? 2) What might be the pros and cons of self-determined living? 3) Which steps need to be taken to implement AOT more often? Conclusions The topic is relevant in the public health sector and the results could help to sensitize professionals and the general society regarding to participation in everyday life. The recommendations developed may serve to implement comparable forms of housing. Disclosure No significant relationships.
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Neusser S, Neumann A, Speckemeier C, Zur Nieden P, Schlierenkamp S, Walendzik A, Karbach U, Andreica I, Vaupel K, Baraliakos X, Kiltz U. AB1402 FACILITATORS AND BARRIERS OF VACCINE UPTAKE IN PATIENTS WITH CHRONIC INFLAMMATORY RHEUMATIC DISEASE: A SCOPING REVIEW. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundPatients with chronic inflammatory rheumatic diseases (CIRD) remain underrepresented in receiving vaccinations despite being disproportionately affected by infectious complications.ObjectivesTo systematically review the literature regarding vaccination willingness and vaccination hesitancy in CIRD patients with focus on the perspective of patients and physicians.MethodsA scoping review was conducted in PUBMED, EMBASE and the Cochrane Library through 2021. Study selection was performed by two independent reviewers, data were extracted using a standardized form and risk of bias was assessed using instruments from the McMaster University. Identified barriers and hurdles were synthesized by categorizing them into the WHO’s Measuring Behavioural and Social Drivers of Vaccination (BeSD) conceptual model.ResultsThe search yielded 1,644 hits, of which 30 were included (cross-sectional studies (n=27) based on interviews and 3 intervention studies). The majority of studies reported barriers to influenza and pneumococcal vaccination (n=11), or influenza vaccination only (n=9) from the patients perspective. Two studies assessed the attitudes towards COVID-19 vaccinations. Only one study assessed the view of rheumatologists. Patients mainly mentioned behavioral and social factors that negatively influence their willingness to be vaccinated while physicians see deficits in the organization and lack of time as a major barrier. Coverage of domains matched to the BeSD model suggests a lack of awareness of infection risk by both patients and physicians (Figure 1).Figure 1.Coverage of domains matched to the WHO BeSD ModelConclusionThe view of vaccination in CIRD patients diverges between patients and rheumatologists. Our results show that in-depth counseling on vaccines is important for patients, whereas physicians need support in implementing specific immunization recommendations. The themes identified provide a starting point for future interventions to improve vaccine rates in CIRD patients.Disclosure of InterestsNone declared
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Bieniek K, Neumann A, Buchberger B. Decision-analytic modeling for health economic evaluation in child and adolescent psychiatry using inpatient equivalent treatment - design of a doctoral thesis. Eur Psychiatry 2022. [PMCID: PMC9568169 DOI: 10.1192/j.eurpsy.2022.1137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Introduction Despite the high prevalence of psychiatric disorders among children and adolescents, services are often accessed too late or not at all. Inpatient-equivalent treatment can be a good option here, as it can counteract structural barriers by enabling treatment from home. Although national and international studies highlight the benefits, this form of treatment is offered by only a few psychiatric facilities. Objectives
The aim is to provide a decision-making aid for the introduction of outreach treatments with regard to cost-effectiveness. Based on this, the question will be answered whether telemedicine can be an option for the distribution of rare (human) resources. Methods
1) Based on a systematic review, the best available evidence will serve for deriving hypotheses and providing assumptions for the decision-making model. 2) Decision analytic modeling will be used to determine the cost-effectiveness of inpatient-equivalent treatment compared to conservative inpatient treatment. 3) An additional systematic review will provide information on the use of telemedicine in inpatient equivalent treatment. Results The following questions need to be discussed: 1)Is there an indication for all psychiatric diseases and age groups? 2) Are there ethical considerations that need to be taken into account, especially in the use of telemedicine? What incentives need to be set for psychiatrists to opt for inpatient-equivalent treatment? Conclusions
The results of the study may help to raise awareness of inpatient equivalent treatment among decision-makers. Furthermore, fears could be reduced, since admission to a psychiatric facility can mean a stigmatizing intervention in the lives of young patients. Disclosure No significant relationships.
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Ditsch N, Schneider M, Pochert N, Ansorge N, Strieder A, Sagasser J, Kühn T, Neumann A, Reiger M, Traidl-Hoffmann C, Jeschke U, Dannecker C. 48P T-helper cell-driven immune response as an effect for seroma formation (SF) after mastectomy (ME) in breast cancer (BC) (SerMa pilot EUBREAST 5). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.03.063] [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: 11/24/2022] Open
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