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Nemali A, Vockert N, Berron D, Maas A, Bernal J, Yakupov R, Peters O, Gref D, Cosma N, Preis L, Priller J, Spruth E, Altenstein S, Lohse A, Fliessbach K, Kimmich O, Vogt I, Wiltfang J, Hansen N, Bartels C, Schott BH, Maier F, Meiberth D, Glanz W, Incesoy E, Butryn M, Buerger K, Janowitz D, Pernecky R, Rauchmann B, Burow L, Teipel S, Kilimann I, Göerß D, Dyrba M, Laske C, Munk M, Sanzenbacher C, Müller S, Spottke A, Roy N, Heneka M, Brosseron F, Roeske S, Dobisch L, Ramirez A, Ewers M, Dechent P, Scheffler K, Kleineidam L, Wolfsgruber S, Wagner M, Jessen F, Duzel E, Ziegler G. Gaussian Process-based prediction of memory performance and biomarker status in ageing and Alzheimer's disease-A systematic model evaluation. Med Image Anal 2023; 90:102913. [PMID: 37660483 DOI: 10.1016/j.media.2023.102913] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/28/2023] [Accepted: 07/25/2023] [Indexed: 09/05/2023]
Abstract
Neuroimaging markers based on Magnetic Resonance Imaging (MRI) combined with various other measures (such as genetic covariates, biomarkers, vascular risk factors, neuropsychological tests etc.) might provide useful predictions of clinical outcomes during the progression towards Alzheimer's disease (AD). The use of multiple features in predictive frameworks for clinical outcomes has become increasingly prevalent in AD research. However, many studies do not focus on systematically and accurately evaluating combinations of multiple input features. Hence, the aim of the present work is to explore and assess optimal combinations of various features for MR-based prediction of (1) cognitive status and (2) biomarker positivity with a multi-kernel learning Gaussian process framework. The explored features and parameters included (A) combinations of brain tissues, modulation, smoothing, and image resolution; (B) incorporating demographics & clinical covariates; (C) the impact of the size of the training data set; (D) the influence of dimensionality reduction and the choice of kernel types. The approach was tested in a large German cohort including 959 subjects from the multicentric longitudinal study of cognitive impairment and dementia (DELCODE). Our evaluation suggests the best prediction of memory performance was obtained for a combination of neuroimaging markers, demographics, genetic information (ApoE4) and CSF biomarkers explaining 57% of outcome variance in out-of-sample predictions. The highest performance for Aβ42/40 status classification was achieved for a combination of demographics, ApoE4, and a memory score while usage of structural MRI further improved the classification of individual patient's pTau status.
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Affiliation(s)
- A Nemali
- Institute of Cognitive Neurology and Dementia Research, Otto-von-Guericke University Magdeburg, Germany; German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany.
| | - N Vockert
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - D Berron
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - A Maas
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - J Bernal
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - R Yakupov
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - O Peters
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany; Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Department of Psychiatry, Hindenburgdamm 30, 12203, Berlin, Germany
| | - D Gref
- Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Department of Psychiatry, Hindenburgdamm 30, 12203, Berlin, Germany
| | - N Cosma
- Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Department of Psychiatry, Hindenburgdamm 30, 12203, Berlin, Germany
| | - L Preis
- Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Department of Psychiatry, Hindenburgdamm 30, 12203, Berlin, Germany
| | - J Priller
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany; Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany; School of Medicine, Technical University of Munich; Department of Psychiatry and Psychotherapy, Munich, Germany; University of Edinburgh and UK DRI, Edinburgh, UK
| | - E Spruth
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany; Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany
| | - S Altenstein
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany; Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany
| | - A Lohse
- Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany
| | - K Fliessbach
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany; University of Bonn Medical Center, Department of Neurodegenerative Disease and Geriatric Psychiatry/Psychiatry, Venusberg-Campus 1, 53127 Bonn, Germany
| | - O Kimmich
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - I Vogt
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - J Wiltfang
- German Center for Neurodegenerative Diseases (DZNE), Goettingen, Germany; Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, University of Goettingen, Von-Siebold-Str. 5, 37075 Goettingen, Germany; Neurosciences and Signaling Group, Institute of Biomedicine (iBiMED), Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - N Hansen
- Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, University of Goettingen, Von-Siebold-Str. 5, 37075 Goettingen, Germany
| | - C Bartels
- Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, University of Goettingen, Von-Siebold-Str. 5, 37075 Goettingen, Germany
| | - B H Schott
- Leibniz Institute for Neurobiology, Magdeburg, Germany; German Center for Neurodegenerative Diseases (DZNE), Goettingen, Germany; Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, University of Goettingen, Von-Siebold-Str. 5, 37075 Goettingen, Germany
| | - F Maier
- Department of Psychiatry, University of Cologne, Medical Faculty, Kerpener Strasse 62, 50924 Cologne, Germany
| | - D Meiberth
- Department of Psychiatry, University of Cologne, Medical Faculty, Kerpener Strasse 62, 50924 Cologne, Germany
| | - W Glanz
- Institute of Cognitive Neurology and Dementia Research, Otto-von-Guericke University Magdeburg, Germany
| | - E Incesoy
- Institute of Cognitive Neurology and Dementia Research, Otto-von-Guericke University Magdeburg, Germany; German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - M Butryn
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - K Buerger
- German Center for Neurodegenerative Diseases (DZNE, Munich), Feodor-Lynen-Strasse 17, 81377 Munich, Germany; Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Feodor-Lynen-Strasse 17, 81377 Munich, Germany
| | - D Janowitz
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Feodor-Lynen-Strasse 17, 81377 Munich, Germany
| | - R Pernecky
- German Center for Neurodegenerative Diseases (DZNE, Munich), Feodor-Lynen-Strasse 17, 81377 Munich, Germany; Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy) Munich, Munich, Germany; Ageing Epidemiology Research Unit (AGE), School of Public Health, Imperial College London, London, UK
| | - B Rauchmann
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
| | - L Burow
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
| | - S Teipel
- German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany; Department of Psychosomatic Medicine, Rostock University Medical Center, Gehlsheimer Str. 20, 18147 Rostock, Germany
| | - I Kilimann
- German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany; Department of Psychosomatic Medicine, Rostock University Medical Center, Gehlsheimer Str. 20, 18147 Rostock, Germany
| | - D Göerß
- Department of Psychosomatic Medicine, Rostock University Medical Center, Gehlsheimer Str. 20, 18147 Rostock, Germany
| | - M Dyrba
- German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
| | - C Laske
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany; Section for Dementia Research, Hertie Institute for Clinical Brain Research and Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - M Munk
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany; Department of Psychiatry and Psychotherapy, University of Tuebingen, Tuebingen, Germany
| | - C Sanzenbacher
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - S Müller
- Department of Psychiatry and Psychotherapy, University of Tuebingen, Tuebingen, Germany
| | - A Spottke
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany; Department of Neurology, University of Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - N Roy
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - M Heneka
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany; Department of Psychiatry and Psychotherapy, University of Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - F Brosseron
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - S Roeske
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - L Dobisch
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - A Ramirez
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany; Department of Neurology, University of Bonn, Venusberg-Campus 1, 53127 Bonn, Germany; Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Köln, Germany; Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; Department of Psychiatry & Glenn Biggs Institute for Alzheimer's and Neurodegenerative Diseases, San Antonio, TX, USA
| | - M Ewers
- German Center for Neurodegenerative Diseases (DZNE, Munich), Feodor-Lynen-Strasse 17, 81377 Munich, Germany; Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Feodor-Lynen-Strasse 17, 81377 Munich, Germany
| | - P Dechent
- MR-Research in Neurosciences, Department of Cognitive Neurology, Georg-August-University Goettingen, Germany
| | - K Scheffler
- Department for Biomedical Magnetic Resonance, University of Tübingen, 72076 Tübingen, Germany
| | - L Kleineidam
- University of Bonn Medical Center, Department of Neurodegenerative Disease and Geriatric Psychiatry/Psychiatry, Venusberg-Campus 1, 53127 Bonn, Germany
| | - S Wolfsgruber
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany; University of Bonn Medical Center, Department of Neurodegenerative Disease and Geriatric Psychiatry/Psychiatry, Venusberg-Campus 1, 53127 Bonn, Germany
| | - M Wagner
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany; University of Bonn Medical Center, Department of Neurodegenerative Disease and Geriatric Psychiatry/Psychiatry, Venusberg-Campus 1, 53127 Bonn, Germany
| | - F Jessen
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany; Department of Psychiatry, University of Cologne, Medical Faculty, Kerpener Strasse 62, 50924 Cologne, Germany; Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Joseph-Stelzmann-Strasse 26, 50931 Köln, Germany
| | - E Duzel
- Institute of Cognitive Neurology and Dementia Research, Otto-von-Guericke University Magdeburg, Germany; German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - G Ziegler
- Institute of Cognitive Neurology and Dementia Research, Otto-von-Guericke University Magdeburg, Germany; German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
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Naujokat H, Himmel AL, Behrens E, Gülses A, Wiltfang J, Terheyden H. Treatment satisfaction and oral health-related quality of life in patients with cleft lip and palate after secondary alveolar bone grafting. Int J Oral Maxillofac Surg 2022; 51:1454-1461. [DOI: 10.1016/j.ijom.2022.03.002] [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: 05/25/2021] [Revised: 02/25/2022] [Accepted: 03/01/2022] [Indexed: 10/18/2022]
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Zampar S, Klafki HW, Sritharen K, Bayer TA, Wiltfang J, Rostagno A, Ghiso J, Miles LA, Wirths O. N-terminal heterogeneity of parenchymal and vascular amyloid-β deposits in Alzheimer's disease. Neuropathol Appl Neurobiol 2020; 46:673-685. [PMID: 32497293 PMCID: PMC8082844 DOI: 10.1111/nan.12637] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 01/31/2020] [Accepted: 05/24/2020] [Indexed: 02/06/2023]
Abstract
Aims: The deposition of amyloid-β (Aβ) peptides in the form of extracellular plaques in the brain represents one of the classical hallmarks of Alzheimer’s disease (AD). In addition to ‘full-length’ Aβ starting with aspartic acid (Asp-1), considerable amounts of various shorter, N-terminally truncated Aβ peptides have been identified by mass spectrometry in autopsy samples from individuals with AD. Methods: Selectivity of several antibodies detecting full-length, total or N-terminally truncated Aβ species has been characterized with capillary isoelectric focusing assays using a set of synthetic Aβ peptides comprising different N-termini. We further assessed the N-terminal heterogeneity of extracellular and vascular Aβ peptide deposits in the human brain by performing immunohistochemical analyses using sporadic AD cases with antibodies targeting different N-terminal residues, including the biosimilar antibodies Bapineuzumab and Crenezumab. Results: While antibodies selectively recognizing Aβ1–x showed a much weaker staining of extracellular plaques and tended to accentuate cerebrovascular amyloid deposits, antibodies detecting Aβ starting with phenylalanine at position 4 of the Aβ sequence showed abundant amyloid plaque immunoreactivity in the brain parenchyma. The biosimilar antibody Bapineuzumab recognized Aβ starting at Asp-1 and demonstrated abundant immunoreactivity in AD brains. Discussion: In contrast to other studied Aβ1–x-specific antibodies, Bapineuzumab displayed stronger immunoreactivity on fixed tissue samples than with sodium dodecyl sulfate-denatured samples on Western blots. This suggests conformational preferences of this antibody. The diverse composition of plaques and vascular deposits stresses the importance of understanding the roles of various Aβ variants during disease development and progression in order to generate appropriate target-developed therapies.
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Affiliation(s)
- S Zampar
- Department of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Göttingen, Germany
| | - H W Klafki
- Department of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Göttingen, Germany
| | - K Sritharen
- Department of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Göttingen, Germany
| | - T A Bayer
- Department of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Göttingen, Germany
| | - J Wiltfang
- Department of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Göttingen, Germany.,Neurosciences and Signaling Group, Department of Medical Sciences, Institute of Biomedicine (iBiMED), University of Aveiro, Aveiro, Portugal.,German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany
| | - A Rostagno
- Departments of, Pathology, New York University School of Medicine, New York, NY, USA
| | - J Ghiso
- Departments of, Pathology, New York University School of Medicine, New York, NY, USA.,Department of, Psychiatry, New York University School of Medicine, New York, NY, USA
| | - L A Miles
- St. Vincent's Institute of Medical Research, Fitzroy, VIC, Australia
| | - O Wirths
- Department of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Göttingen, Germany
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Wesselman LMP, van Lent DM, Schröder A, van de Rest O, Peters O, Menne F, Fuentes M, Priller J, Spruth EJ, Altenstein S, Schneider A, Fließbach K, Roeske S, Wolfsgruber S, Kleineidam L, Spottke A, Pross V, Wiltfang J, Vukovich R, Schild AK, Düzel E, Metzger CD, Glanz W, Buerger K, Janowitz D, Perneczky R, Tatò M, Teipel S, Kilimann I, Laske C, Buchmann M, Ramirez A, Sikkes SAM, Jessen F, van der Flier WM, Wagner M. Dietary patterns are related to cognitive functioning in elderly enriched with individuals at increased risk for Alzheimer's disease. Eur J Nutr 2020; 60:849-860. [PMID: 32472387 PMCID: PMC7900077 DOI: 10.1007/s00394-020-02257-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 04/22/2020] [Indexed: 12/15/2022]
Abstract
Purpose To investigate cross-sectional associations between dietary patterns and cognitive functioning in elderly free of dementia. Methods Data of 389 participants from the German DELCODE study (52% female, 69 ± 6 years, mean Mini Mental State Score 29 ± 1) were included. The sample was enriched with elderly at increased risk for Alzheimer’s disease (AD) by including participants with subjective cognitive decline, mild cognitive impairment (MCI) and siblings of AD patients. Mediterranean and MIND diets were derived from 148 Food Frequency Questionnaire items, and data-driven patterns by principal component analysis (PCA) of 39 food groups. Associations between dietary patterns and five cognitive domain scores were analyzed with linear regression analyses adjusted for demographics (model 1), and additionally for energy intake, BMI, other lifestyle variables and APOe4-status (model 2). For PCA-derived dietary components, final model 3 included all other dietary components. Results In fully adjusted models, adherence to Mediterranean and MIND diet was associated with better memory. The ‘alcoholic beverages’ PCA component was positively associated with most cognitive domains. Exclusion of MCI subjects (n = 60) revealed that Mediterranean and MIND diet were also related to language functions; associations with the alcoholic beverages component were attenuated, but most remained significant. Conclusion In line with data from elderly population samples, Mediterranean and MIND diet and some data-derived dietary patterns were related to memory and language function. Longitudinal data are needed to draw conclusions on the putative effect of nutrition on the rate of cognitive decline, and on the potential of dietary interventions in groups at increased risk for AD. Electronic supplementary material The online version of this article (10.1007/s00394-020-02257-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- L. M. P. Wesselman
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
- Department of Neurology, Alzheimer Center Amsterdam, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - D. Melo van Lent
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
- The Glenn Biggs Institute for Alzheimer’s and Neurodegenerative Diseases, UT Health, San Antonio, TX USA
- Department of Neurology, Boston University, Boston, MA USA
- The Framingham Heart Study, Framingham, MA USA
| | - A. Schröder
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - O. van de Rest
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, The Netherlands
| | - O. Peters
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Psychiatry and Psychotherapy, Hindenburgdamm 30, 12203 Berlin, Germany
| | - F. Menne
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Psychiatry and Psychotherapy, Hindenburgdamm 30, 12203 Berlin, Germany
| | - M. Fuentes
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Psychiatry and Psychotherapy, Hindenburgdamm 30, 12203 Berlin, Germany
| | - J. Priller
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
- Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany
| | - E. J. Spruth
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
- Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany
| | - S. Altenstein
- Department of Psychiatry and Psychotherapy, Charité, Charitéplatz 1, 10117 Berlin, Germany
| | - A. Schneider
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
- Department for Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - K. Fließbach
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
- Department for Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - S. Roeske
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - S. Wolfsgruber
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
- Department for Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - L. Kleineidam
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
- Department for Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - A. Spottke
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
- Department of Neurology, University of Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - V. Pross
- Study Center Bonn, Medical Faculty, Venusberg-Campus 1, 53127 Bonn, Germany
| | - J. Wiltfang
- German Center for Neurodegenerative Diseases (DZNE), Goettingen, Germany
- Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, University of Goettingen, Von-Siebold-Str. 5, 37075 Goettingen , Germany
| | - R. Vukovich
- German Center for Neurodegenerative Diseases (DZNE), Goettingen, Germany
- Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, University of Goettingen, Von-Siebold-Str. 5, 37075 Goettingen , Germany
| | - A. K. Schild
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
- Department of Psychiatry, University of Cologne, Medical Faculty, Kerpener Strasse 62, 50924 Cologne, Germany
| | - E. Düzel
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
- Institute of Cognitive Neurology and Dementia Research (IKND), Otto-Von-Guericke University, Magdeburg, Germany
| | - C. D. Metzger
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
- Institute of Cognitive Neurology and Dementia Research (IKND), Otto-Von-Guericke University, Magdeburg, Germany
- Department of Psychiatry and Psychotherapy, Otto-Von-Guericke University, Magdeburg, Germany
| | - W. Glanz
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - K. Buerger
- German Center for Neurodegenerative Diseases (DZNE, Munich), Feodor-Lynen-Strasse 17, 81377 Munich, Germany
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Feodor-Lynen-Strasse 17, 81377 Munich, Germany
| | - D. Janowitz
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Feodor-Lynen-Strasse 17, 81377 Munich, Germany
| | - R. Perneczky
- German Center for Neurodegenerative Diseases (DZNE, Munich), Feodor-Lynen-Strasse 17, 81377 Munich, Germany
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy) Munich, Munich, Germany
- Ageing Epidemiology Research Unit (AGE), School of Public Health, Imperial College London, London, UK
| | - M. Tatò
- German Center for Neurodegenerative Diseases (DZNE, Munich), Feodor-Lynen-Strasse 17, 81377 Munich, Germany
| | - S. Teipel
- German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
- Department of Psychosomatic Medicine, Rostock University Medical Center, Gehlsheimer Str. 20, 18147 Rostock, Germany
| | - I. Kilimann
- German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
- Department of Psychosomatic Medicine, Rostock University Medical Center, Gehlsheimer Str. 20, 18147 Rostock, Germany
| | - C. Laske
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
- Section for Dementia Research, Hertie Institute for Clinical Brain Research and Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - M. Buchmann
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
- Section for Dementia Research, Hertie Institute for Clinical Brain Research and Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - A. Ramirez
- Department of Psychiatry, University of Cologne, Medical Faculty, Kerpener Strasse 62, 50924 Cologne, Germany
| | - S. A. M. Sikkes
- Department of Neurology, Alzheimer Center Amsterdam, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
- Clinical Developmental Psychology and Clinical Neuropsychology, Faculty of Behavioural and Movement Sciences (FGB), Vrije University Amsterdam, Amsterdam, The Netherlands
| | - F. Jessen
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
- Department of Psychiatry, University of Cologne, Medical Faculty, Kerpener Strasse 62, 50924 Cologne, Germany
| | - W. M. van der Flier
- Department of Neurology, Alzheimer Center Amsterdam, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
- Department of Epidemiology and Biostatistics, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
| | - M. Wagner
- German Center for Neurodegenerative Disorders (DZNE), Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
- Department for Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
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Christiansen H, Kis B, Hirsch O, Matthies S, Hebebrand J, Uekermann J, Abdel-Hamid M, Kraemer M, Wiltfang J, Graf E, Colla M, Sobanski E, Alm B, Rösler M, Jacob C, Jans T, Huss M, Schimmelmann B, Philipsen A. German validation of the Conners Adult ADHD Rating Scales (CAARS) II: Reliability, validity, diagnostic sensitivity and specificity. Eur Psychiatry 2020; 27:321-8. [DOI: 10.1016/j.eurpsy.2010.12.010] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Revised: 12/13/2010] [Accepted: 12/26/2010] [Indexed: 10/18/2022] Open
Abstract
AbstractBackgroundThe German version of the Conners Adult ADHD Rating Scales (CAARS) has proven to show very high model fit in confirmative factor analyses with the established factors inattention/memory problems, hyperactivity/restlessness, impulsivity/emotional lability, and problems with self-concept in both large healthy control and ADHD patient samples. This study now presents data on the psychometric properties of the German CAARS-self-report (CAARS-S) and observer-report (CAARS-O) questionnaires.MethodsCAARS-S/O and questions on sociodemographic variables were filled out by 466 patients with ADHD, 847 healthy control subjects that already participated in two prior studies, and a total of 896 observer data sets were available. Cronbach's-alpha was calculated to obtain internal reliability coefficients. Pearson correlations were performed to assess test-retest reliability, and concurrent, criterion, and discriminant validity. Receiver Operating Characteristics (ROC-analyses) were used to establish sensitivity and specificity for all subscales.ResultsCoefficient alphas ranged from .74 to .95, and test-retest reliability from .85 to .92 for the CAARS-S, and from .65 to .85 for the CAARS-O. All CAARS subscales, except problems with self-concept correlated significantly with the Barrett Impulsiveness Scale (BIS), but not with the Wender Utah Rating Scale (WURS). Criterion validity was established with ADHD subtype and diagnosis based on DSM-IV criteria. Sensitivity and specificity were high for all four subscales.ConclusionThe reported results confirm our previous study and show that the German CAARS-S/O do indeed represent a reliable and cross-culturally valid measure of current ADHD symptoms in adults.
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Meiberth D, Hu X, Schild AK, Spottke A, Brosseron F, Buerger K, Fliessbach K, Heneka MT, Kilimann I, Laske C, Peters O, Priller J, Schneider A, Teipel S, Wiltfang J, Wagner M, Duezel E, Jessen F. Alzheimerʼs Disease biomarkers and cortical thickness in persons reporting subjective cognitive decline and healthy controls: Data derived from the DZNE DELCDODE-Study. PHARMACOPSYCHIATRY 2020. [DOI: 10.1055/s-0039-3403000] [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] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- D Meiberth
- Klinikum der Universität zu Köln, Germany
| | - X Hu
- Klinikum der Universität zu Köln, Germany
| | - AK Schild
- Klinikum der Universität zu Köln, Germany
| | - A Spottke
- Klinikum der Universität zu Köln, Germany
| | | | - K Buerger
- Klinikum der Universität zu Köln, Germany
| | | | - MT Heneka
- Klinikum der Universität zu Köln, Germany
| | - I Kilimann
- Klinikum der Universität zu Köln, Germany
| | - C Laske
- Klinikum der Universität zu Köln, Germany
| | - O Peters
- Klinikum der Universität zu Köln, Germany
| | - J Priller
- Klinikum der Universität zu Köln, Germany
| | | | - S Teipel
- Klinikum der Universität zu Köln, Germany
| | - J Wiltfang
- Klinikum der Universität zu Köln, Germany
| | - M Wagner
- Klinikum der Universität zu Köln, Germany
| | - E Duezel
- Klinikum der Universität zu Köln, Germany
| | - F Jessen
- Klinikum der Universität zu Köln, Germany
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Baumann E, Koller M, Wenz HJ, Wiltfang J, Hertrampf K. A conceptual framework for an oral cancer awareness campaign in Northern Germany - Challenges in campaign development and assessment. Community Dent Health 2019; 36:181-186. [PMID: 31436926 DOI: 10.1922/cdh_4300baumann06] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Initial impetus for action: Oral cancer is still an underestimated disease in terms of incidence as well as mortality rates; it requires urgent prevention and early detection. At present, there is no best-practice systematic approach to raising awareness and informing the public about about this type of cancer in Germany. This article describes a framework that covers the significant stages of conceptual development and campaign design to promote oral cancer awareness in Germany. Solution: The challenges of the development, as well as evaluation of an oral cancer awareness campaign are shared in this article. Four key stages of the campaign are defined: (1) mass media, (2) target groups, (3) health care professionals, and (4) epidemiology. For each section, the following levels of assessment are proposed: (a) campaign development (formative assessment), (b) controlling and optimising campaign implementation (process assessment) and (c) measuring outcomes (summative assessment). Outcome: A process-oriented assessment concept for each of the four campaign sections was developed and merged to form a matrix, which includes each of the above sections regarding the prevention and early detection of oral cancer, as well as the three stages of campaign assessment. Future implications and learning points: The conceptual framework demonstrated that systematic planning and evaluation of different components helped to describe and evaluate an oral cancer campaign: For future campaigns, the use of a matrix covering different campaign targets as well as the entire campaign process, is recommended as a basis for campaign design and evaluation.
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Affiliation(s)
- E Baumann
- Department of Journalism and Communication Research, Hannover University of Music, Drama, and Media, Germany
| | - M Koller
- Centre for Clinical Studies, University Medical Centre Regensburg, Germany
| | - H-J Wenz
- Clinic of Prosthodontics, Propaedeutics and Dental Materials, University Hospital Schleswig-Holstein, Campus Kiel, Germany
| | - J Wiltfang
- Clinic of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Germany
| | - K Hertrampf
- Clinic of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Germany
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8
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Gülses A, Açil Y, Wiltfang J. Danger of highlighting the use of coxibs in daily dental practice. Int J Oral Maxillofac Surg 2019; 48:1608. [PMID: 31230772 DOI: 10.1016/j.ijom.2019.06.020] [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: 04/22/2019] [Accepted: 06/07/2019] [Indexed: 10/26/2022]
Affiliation(s)
- A Gülses
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany.
| | - Y Açil
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - J Wiltfang
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
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Naujokat H, Ruff CB, Klüter T, Seitz JM, Açil Y, Wiltfang J. Influence of surface modifications on the degradation of standard-sized magnesium plates and healing of mandibular osteotomies in miniature pigs. Int J Oral Maxillofac Surg 2019; 49:272-283. [PMID: 31227276 DOI: 10.1016/j.ijom.2019.03.966] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 01/16/2019] [Accepted: 03/17/2019] [Indexed: 11/28/2022]
Abstract
Biodegradable magnesium alloys are suitable osteosynthesis materials. Despite the alloy composition, surface modifications appear to have an influence on the degradation process and biocompatibility. The aim of this study was to investigate the impact of hydrogenation and fluoridation of the surface in a mandibular osteotomy model. Standard-sized plates and screws were implanted in an osteotomy at the mandibular angle in nine miniature pigs. The plates and screws were harvested together with the adjacent tissues at 8 weeks after surgery and were investigated by micro-computed tomography and histological analysis. The bone healing of the osteotomy was undisturbed, independent of the surface properties. The adjacent bone tissue showed new bone formation at the implant surface; however, formation of some lacunae could be observed. The corrosion was between 9.8% and 11.6% (fluoridated<hydrogenated<non-modified) in histological specimens, while radiologically neither the volume nor the density of the osteosynthesis material was reduced in any treatment group. The soft tissues exhibited full biocompatibility with every surface property. In summary, surface modification by hydrogenation and fluoridation did not significantly influence bone healing, biocompatibility, or corrosion kinetics of the magnesium osteosynthesis at the mandibular angle.
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Affiliation(s)
- H Naujokat
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Kiel, Germany.
| | - C B Ruff
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Kiel, Germany
| | - T Klüter
- Department of Trauma Surgery, University Hospital of Schleswig-Holstein, Kiel, Germany
| | | | - Y Açil
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Kiel, Germany
| | - J Wiltfang
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Kiel, Germany
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10
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Naujokat H, Açil Y, Harder S, Lipp M, Böhrnsen F, Wiltfang J. Osseointegration of dental implants in ectopic engineered bone in three different scaffold materials. Int J Oral Maxillofac Surg 2019; 49:135-142. [PMID: 31053519 DOI: 10.1016/j.ijom.2019.04.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 02/15/2019] [Accepted: 04/09/2019] [Indexed: 11/16/2022]
Abstract
The in vivo regeneration of bone flaps might be an alternative to autogenous bone grafting. The first human case of mandibular reconstruction using the greater omentum as a bioreactor was reported in 2016. However, whether engineered bone will support the osseointegration of dental implants has not yet been investigated. In this study, bone tissue engineering was performed in the greater omentum of nine miniature pigs using bone morphogenetic protein 2, bone marrow aspirate, and three different scaffolds: hydroxyapatite, biphasic calcium phosphate (BCP), and titanium. After 8 weeks, two implants were placed in each scaffold; after another 8 weeks, the bone blocks were harvested for radiographic, histological, and histomorphometric analysis. All implants exhibited sufficient primary stability, and the success rate was 100%. The bone-to-implant contact ratios (BICs) were 38.2%, 68.5%, and 42.9%; the inter-thread bone densities were 29.4%, 64.9%, and 33.5%; and the peri-implant bone-scaffold densities were 56.4%, 87.6%, and 68.6% in the hydroxyapatite, BCP, and titanium groups, respectively. The BIC showed a strong correlation (r = 0.76) with the peri-implant bone-scaffold density. This study shows that de novo engineered bone leads to successful osseointegration and therefore may allow implant-based prosthodontic rehabilitation.
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Affiliation(s)
- H Naujokat
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Kiel, Germany.
| | - Y Açil
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Kiel, Germany
| | - S Harder
- Department of Prosthodontics, Propaedeutics and Dental Materials, University Hospital of Schleswig-Holstein, Kiel, Germany
| | - M Lipp
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Kiel, Germany
| | - F Böhrnsen
- Department of Oral and Maxillofacial Surgery, University Hospital of Göttingen, Göttingen, Germany
| | - J Wiltfang
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Kiel, Germany
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11
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Naujokat H, Möller B, Terheyden H, Birkenfeld F, Caliebe D, Krause MF, Fischer-Brandies H, Wiltfang J. Tongue reduction in Beckwith-Wiedemann syndrome: outcome and treatment algorithm. Int J Oral Maxillofac Surg 2018; 48:9-16. [PMID: 30057238 DOI: 10.1016/j.ijom.2018.07.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 03/22/2018] [Revised: 05/30/2018] [Accepted: 07/11/2018] [Indexed: 11/27/2022]
Abstract
Beckwith-Wiedemann syndrome is a rare congenital overgrowth disorder with macroglossia being one of the cardinal symptoms. In pronounced cases, macroglossia can lead to airway obstruction, musculoskeletal alterations and functional deficits. Surgical tongue reduction is performed at varying ages and with different techniques. This study evaluated perioperative complications, as well as long-term aesthetic and functional outcomes, in a large cohort. A total of 68 patients, treated either surgically or conservatively, were included. Depending on the severity of macroglossia, patients were divided into three groups to determine the treatment algorithm. Complications after surgical tongue reduction were prolonged intubation and revision due to dehiscence or haematoma. In the long term, no patient suffered from impaired sense of taste or paresthesia, although the shape of the tongue was disproportional in 85%. With the present treatment algorithm, operative tongue reduction exerts a positive influence on skeletal, dentoalveolar and functional development with sufficient long-term outcome and high grade of satisfaction of the patients. Supportive therapy in an interdisciplinary centre is of fundamental importance for both surgical and conservative treatment.
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Affiliation(s)
- H Naujokat
- Departments of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany.
| | - B Möller
- Departments of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - H Terheyden
- Departments of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - F Birkenfeld
- Departments of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - D Caliebe
- Departments of Anesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - M F Krause
- Departments of Pediatrics, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - H Fischer-Brandies
- Departments of Orthodontics, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - J Wiltfang
- Departments of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
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12
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Joachim LK, Frölich L, Rüther E, Wiltfang J, Maier W, Kornhuber J, Bauer C, Heuser I, Peters O. Correlation of CSF- and MRI-Biomarkers and Progression of Cognitive Decline in an Open Label MCI Trial. J Prev Alzheimers Dis 2018; 5:202-206. [PMID: 29972214 DOI: 10.14283/jpad.2018.5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND In several randomized controlled trials (RCT) acetylcholinesterase-inhibitors (AChE-I) were tested in patients with mild cognitive impairment (MCI) but were ineffective in delaying disease progression as determined by neuropsychological testing only. Here we present data from an open label observational extension of a multicenter RCT in order to assess if biomarkers are providing useful additional information about a drug's efficacy. We followed 83 amnestic MCI patients and performed correlational analyses of Aβ 1-42 and total-Tau in the cerebrospinal fluid (CSF), hippocampal and amygdala volume at baseline, the total duration of blinded and open label AChE-I treatment and the outcome 24 months after inclusion into the RCT. Twelve out of 83 amnestic MCI (14%) had progressed to Alzheimer's disease (AD). Overall, worsening and disease progression as measured by the Alzheimer's Disease Assessment Scale - cognitive subscale (ADAS-cog), Alzheimer's Disease Cooperative Study - Activities of Daily Living (ADCS-ADL) and Clinical Dementia Rating (CDR) did not correlate with the duration of AChE-I treatment. However, a specific multidimensional biomarker profile at baseline indicated more reliably than cognitive testing alone progression to AD. We conclude that pharmacological RCTs testing symptomatic treatment effects in MCI should include biomarker assessment.
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Affiliation(s)
- L K Joachim
- Oliver Peters, Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany, Tel.: +49-30-450-517628, Fax.: +49-30-450-517942,
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13
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Naujokat H, Açil Y, Gülses A, Birkenfeld F, Wiltfang J. Man as a living bioreactor: Long-term histological aspects of a mandibular replacement engineered in the patient's own body. Int J Oral Maxillofac Surg 2018; 47:1481-1487. [PMID: 29843951 DOI: 10.1016/j.ijom.2018.05.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 01/10/2018] [Revised: 04/03/2018] [Accepted: 05/08/2018] [Indexed: 11/16/2022]
Abstract
In 2016, we reported the world's first reconstruction of a mandibular discontinuity defect using a custom-made bone transplant that had been prefabricated in the gastrocolic omentum using tissue engineering strategies. However, the tissue of an engineered human neomandible has not been evaluated histologically until now. The current study assessed the long-term histological characteristics of biopsies of the neomandible 9months after transplantation. Histological analysis showed an increased amount of vital mineralized bone tissue after 10months, in comparison to biopsies obtained earlier. The engineered bone covered the surface of the bone substitute material but also grew out typical structures of cancellous bone tissue without a core of BioOss. The amount of induced bone tissue was 32% in the biopsy. In addition, the soft tissue showed an alignment of the connective tissue fibres parallel to the trabecular bone. Increasing time and mechanical forces at the mandible led to an increased amount of mineralized tissue and remodelling of the connective tissue fibres after transplantation. Further research should focus on developing advanced scaffold materials, as the outer titanium mesh cage leads to complications.
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Affiliation(s)
- H Naujokat
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105 Kiel, Germany.
| | - Y Açil
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - A Gülses
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - F Birkenfeld
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105 Kiel, Germany
| | - J Wiltfang
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105 Kiel, Germany
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14
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Niklewski F, Abdel-Hamid M, Ntoulias G, Guberina N, Krämer M, Dziobek I, Wiltfang J, Kis B. Theory of mind deficits in adults with ADHD. PHARMACOPSYCHIATRY 2017. [DOI: 10.1055/s-0037-1606433] [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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- F Niklewski
- University Medical Center, Department of Psychiatry and Psychotherapy, Essen, Germany
| | - M Abdel-Hamid
- University Medical Center, Department of Psychiatry and Psychotherapy, Göttingen, Germany
| | - G Ntoulias
- University Medical Center, Department of Psychiatry and Psychotherapy, Essen, Germany
| | - N Guberina
- University Medical Center, Department of Psychiatry and Psychotherapy, Essen, Germany
| | - M Krämer
- Alfried Krupp Hospital, Department of Neurology and Neurophysiology, Essen, Germany
| | - I Dziobek
- Humboldt-Universität zu Berlin, Berlin School of Mind and Brain and Institute of Psychology, Berlin, Germany
| | - J Wiltfang
- University Medical Center, Department of Psychiatry and Psychotherapy, Göttingen, Germany
| | - B Kis
- University Medical Center, Department of Psychiatry and Psychotherapy, Göttingen, Germany
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Vogelgsang J, Klafki H, Wedekind D, Bouter C, Wiltfang J. Reproducibility of Alzheimer's Disease CSF-Biomarker Measurements under Clinical Routine Conditions. PHARMACOPSYCHIATRY 2017. [DOI: 10.1055/s-0037-1606415] [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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- J Vogelgsang
- Department of Psychiatry and Psychotherapy, University Medical Centre, Goettingen, Germany
| | - H Klafki
- Department of Psychiatry and Psychotherapy, University Medical Centre, Goettingen, Germany
| | - D Wedekind
- Department of Psychiatry and Psychotherapy, University Medical Centre, Goettingen, Germany
| | - C Bouter
- Department of Nuclear Medicine, University Medical Centre, Goettingen, Germany
| | - J Wiltfang
- Department of Psychiatry and Psychotherapy, University Medical Centre, Goettingen, Germany
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Bouter Y, Brzózka M, Rohleder C, Rygula R, Leweke M, Wiltfang J, Havemann-Reinecke U. Effects of social defeat on the endocannabinoid system. PHARMACOPSYCHIATRY 2017. [DOI: 10.1055/s-0037-1606396] [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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Y Bouter
- Department of Psychiatry and Psychotherapy, Molecular Psychiatry, University Medicine Göttingen, Göttingen, Germany
| | - M Brzózka
- Department of Psychiatry and Psychotherapy, University Medicine Göttingen, Göttingen, Germany
| | - C Rohleder
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Mannheim, Germany
| | - R Rygula
- Department of Psychiatry and Psychotherapy, University Medicine Göttingen, Göttingen, Germany
| | - M Leweke
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Mannheim, Germany
| | - J Wiltfang
- Department of Psychiatry and Psychotherapy, University Medicine Göttingen, Göttingen, Germany
| | - U Havemann-Reinecke
- Department of Psychiatry and Psychotherapy, University Medicine Göttingen, Göttingen, Germany
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Kis B, Guberina N, Kraemer M, Niklewski F, Dziobek I, Wiltfang J, Abdel-Hamid M. Perception of emotional prosody in adults with attention deficit hyperactivity disorder. Acta Psychiatr Scand 2017; 135:506-514. [PMID: 28276052 DOI: 10.1111/acps.12719] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/14/2017] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Attention deficit hyperactivity disorder (ADHD) is associated with social conflicts. The purpose of this study was to explore domains of social cognition in adult patients with ADHD. METHODS The assessment of social cognition was based on established neuropsychological tests: the Tübinger Affect Battery (TAB) for prosody and the Cambridge Behaviour Scale (CBS) for empathy. The performance of adults with ADHD (N = 28) was compared with the performance of a control group (N = 29) matched according to basic demographic variables. RESULTS Treatment-naïve adults with ADHD showed deficits in emotional prosody (P = 0.02) and in the ability to empathize (P < 0.02) independent of executive functioning. In particular, their ability to perceive angry feelings was found to be compromised (P = 0.04). When emotional prosody was considered in relation to facial expressions, patients and controls showed no impairments (P > 0.2). No gender differences concerning social cognitive skills were detected. CONCLUSIONS ADHD is associated with social cognition impairments involving both emotional prosody and empathy.
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Affiliation(s)
- B Kis
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Göttingen, Germany
| | - N Guberina
- LVR Hospital Essen, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany.,Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - M Kraemer
- Department of Neurology, Alfried Krupp von Bohlen and Halbach Hospital, Essen, Germany
| | - F Niklewski
- LVR Hospital Essen, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany
| | - I Dziobek
- Berlin School of Mind and Brain, Humboldt University, Berlin, Germany
| | - J Wiltfang
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Göttingen, Germany
| | - M Abdel-Hamid
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Göttingen, Germany
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Abstract
Cerebrospinal fluid-based neurochemical dementia diagnostics (CSF-NDD) support the early and differential diagnosis of dementia, most importantly the diagnosis of early or preclinical Alzheimer's dementia (AD). Meanwhile CSF-NDD are now recommended for improved exclusion and positive diagnostics of AD by the German national neuropsychiatry S3 dementia guidelines ( www.DGPPN.de ). Meta-analyses of independent international multicenter studies have shown that a combined CSF analysis of amyloid-beta 1-42 (Aβ 1-42, decreased), total tau proteins (increased) and phospho-tau proteins (increased) offers a sensitivity and specificity of 80-90 % for the early and differential diagnosis of AD (AD versus all other). Generally, CSF-NDD should be combined with blood-based routine diagnostics and should be part of routine CSF diagnostics, e. g. cell count and cell differentiation (if applicable), intrathecal antibody synthesis and blood-CSF barrier analysis. The CSF-NDD are most valuable for the improved differentiation between reversible dementia syndromes and irreversible neurodegenerative dementia, e. g. cognitive deficits due to late onset depression (pseudodementia due to depression) or AD. Combined with extended psychometric neuropsychological evaluation and neuroimaging methods, such as magnetic resonance imaging (MRI), dopamine transporter scanning (DaTscan) by single photon emission computed tomography (SPECT), 18F-fluorodeoxyglucose positron emission tomography (glucose-PET) and amyloid-PET, CSF-NDD also significantly improve the differential diagnostics within the heterogeneous group of primary neurodegenerative dementias. Meanwhile, several independent studies have indicated that the Aβ 1-42:Aβ 1-40 ratio is superior to the determination of Aβ 1-42 alone. Currently, several international research initiatives have been launched to further harmonize and optimize preanalytical procedures and CSF-NDD biomarker assays.
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Affiliation(s)
- J Wiltfang
- Klinik für Psychiatrie und Psychotherapie, Universitätsmedizin Göttingen (UMG), Von-Siebold-Str. 5, 37075, Göttingen, Deutschland.
| | - P Lewczuk
- Psychiatrische und Psychotherapeutische Klinik, Universitätsklinikum Erlangen, Erlangen, Deutschland
| | - M Otto
- Klinik für Neurologie, Universitätsklinikum Ulm, Ulm, Deutschland
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19
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Abstract
BACKGROUND Electroconvulsive therapy (ECT) is a potent and successful method for the treatment of severe psychiatric disorders. Severe depressive and psychotic disorders may lead to legal incapacity and inability to consent. In Germany, administration of ECT against the patient's will is feasible under certain constellations and is regulated under the terms of the guardianship law. OBJECTIVE This article outlines the prevalence, effectiveness and tolerability of ECT when applied in nonconsenting patients. MATERIAL AND METHODS Case report and literature review. RESULTS The literature on ECT as a treatment in nonconsenting patients is relatively sparse. In 2008 the prevalence in Germany was less than 0.5 % of all patients receiving ECT. Case reports and case series suggest a good and equal level of effectiveness when compared to consenting patients. In the course of treatment the majority of patients consented to receive further ECT and retrospectively judged ECT as helpful. CONCLUSION The use of ECT is a highly effective treatment in severe psychiatric disorders even when administered as treatment in nonconsenting patients. It can be lifesaving and lead to a rapid improvement of symptoms and relief from severe suffering also from the patients' perspective. Thus, it seems unethical not to consider ECT as a treatment against the nonautonomous will of legally incompetent patients in individual cases. Nevertheless, physicians should always seek to obtain the patients' consent as soon as possible for both legal and ethical reasons.
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Affiliation(s)
- M Besse
- Klinik für Psychiatrie und Psychotherapie, Universitätsmedizin Göttingen, Von-Siebold-Str. 5, 37075, Göttingen, Deutschland
| | - I Methfessel
- Klinik für Psychiatrie und Psychotherapie, Universitätsmedizin Göttingen, Von-Siebold-Str. 5, 37075, Göttingen, Deutschland
| | - J Wiltfang
- Klinik für Psychiatrie und Psychotherapie, Universitätsmedizin Göttingen, Von-Siebold-Str. 5, 37075, Göttingen, Deutschland
| | - D Zilles
- Klinik für Psychiatrie und Psychotherapie, Universitätsmedizin Göttingen, Von-Siebold-Str. 5, 37075, Göttingen, Deutschland.
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20
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Zerr I, Bandelow B, Wedekind D, Schneider A, Radenbach K, Wiltfang J, Bähr M. Neuropsychiatrische Erkrankungen und Demenzen: ein interdisziplinärer Ansatz. Akt Neurol 2016. [DOI: 10.1055/s-0042-106719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- I. Zerr
- Klinik für Neurologie, Universitätsmedizin Göttingen, Göttingen
| | - B. Bandelow
- Klinik für Psychiatrie und Psychotherapie, Universitätsmedizin Göttingen, Göttingen
| | - D. Wedekind
- Klinik für Psychiatrie und Psychotherapie, Universitätsmedizin Göttingen, Göttingen
| | - A. Schneider
- Klinik für Psychiatrie und Psychotherapie, Universitätsmedizin Göttingen, Göttingen
| | - K. Radenbach
- Klinik für Psychiatrie und Psychotherapie, Universitätsmedizin Göttingen, Göttingen
| | - J. Wiltfang
- Klinik für Psychiatrie und Psychotherapie, Universitätsmedizin Göttingen, Göttingen
| | - M. Bähr
- Klinik für Neurologie, Universitätsmedizin Göttingen, Göttingen
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21
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Galluzzi S, Marizzoni M, Babiloni C, Albani D, Antelmi L, Bagnoli C, Bartres-Faz D, Cordone S, Didic M, Farotti L, Fiedler U, Forloni G, Girtler N, Hensch T, Jovicich J, Leeuwis A, Marra C, Molinuevo JL, Nobili F, Pariente J, Parnetti L, Payoux P, Del Percio C, Ranjeva JP, Rolandi E, Rossini PM, Schönknecht P, Soricelli A, Tsolaki M, Visser PJ, Wiltfang J, Richardson JC, Bordet R, Blin O, Frisoni GB. Clinical and biomarker profiling of prodromal Alzheimer's disease in workpackage 5 of the Innovative Medicines Initiative PharmaCog project: a 'European ADNI study'. J Intern Med 2016; 279:576-91. [PMID: 26940242 DOI: 10.1111/joim.12482] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND In the field of Alzheimer's disease (AD), the validation of biomarkers for early AD diagnosis and for use as a surrogate outcome in AD clinical trials is of considerable research interest. OBJECTIVE To characterize the clinical profile and genetic, neuroimaging and neurophysiological biomarkers of prodromal AD in amnestic mild cognitive impairment (aMCI) patients enrolled in the IMI WP5 PharmaCog (also referred to as the European ADNI study). METHODS A total of 147 aMCI patients were enrolled in 13 European memory clinics. Patients underwent clinical and neuropsychological evaluation, magnetic resonance imaging (MRI), electroencephalography (EEG) and lumbar puncture to assess the levels of amyloid β peptide 1-42 (Aβ42), tau and p-tau, and blood samples were collected. Genetic (APOE), neuroimaging (3T morphometry and diffusion MRI) and EEG (with resting-state and auditory oddball event-related potential (AO-ERP) paradigm) biomarkers were evaluated. RESULTS Prodromal AD was found in 55 aMCI patients defined by low Aβ42 in the cerebrospinal fluid (Aβ positive). Compared to the aMCI group with high Aβ42 levels (Aβ negative), Aβ positive patients showed poorer visual (P = 0.001), spatial recognition (P < 0.0005) and working (P = 0.024) memory, as well as a higher frequency of APOE4 (P < 0.0005), lower hippocampal volume (P = 0.04), reduced thickness of the parietal cortex (P < 0.009) and structural connectivity of the corpus callosum (P < 0.05), higher amplitude of delta rhythms at rest (P = 0.03) and lower amplitude of posterior cingulate sources of AO-ERP (P = 0.03). CONCLUSION These results suggest that, in aMCI patients, prodromal AD is characterized by a distinctive cognitive profile and genetic, neuroimaging and neurophysiological biomarkers. Longitudinal assessment will help to identify the role of these biomarkers in AD progression.
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Affiliation(s)
- S Galluzzi
- Laboratory of Alzheimer's Neuroimaging & Epidemiology, Saint John of God Clinical Research Centre, Brescia, Italy
| | - M Marizzoni
- Laboratory of Alzheimer's Neuroimaging & Epidemiology, Saint John of God Clinical Research Centre, Brescia, Italy
| | - C Babiloni
- Department of Physiology and Pharmacology, University of Rome 'La Sapienza', Rome, Italy.,IRCCS San Raffaele Pisana of Rome, Rome, Italy
| | - D Albani
- Department of Neuroscience, Mario Negri Institute for Pharmacological Research, Milan, Italy
| | - L Antelmi
- Laboratory of Alzheimer's Neuroimaging & Epidemiology, Saint John of God Clinical Research Centre, Brescia, Italy
| | - C Bagnoli
- Laboratory of Alzheimer's Neuroimaging & Epidemiology, Saint John of God Clinical Research Centre, Brescia, Italy
| | - D Bartres-Faz
- Department of Psychiatry and Clinical Psychobiology, Faculty of Medicine, University of Barcelona and Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Catalunya, Spain
| | - S Cordone
- Department of Physiology and Pharmacology, University of Rome 'La Sapienza', Rome, Italy
| | - M Didic
- Aix-Marseille Université, INSERM, Marseille, France.,Service de Neurologie et Neuropsychologie, APHM Hôpital Timone Adultes, Marseille, France
| | - L Farotti
- Clinica Neurologica, Università di Perugia, Ospedale Santa Maria della Misericordia, Perugia, Italy
| | - U Fiedler
- Department of Psychiatry and Psychotherapy, Faculty of Medicine, LVR-Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - G Forloni
- Department of Neuroscience, Mario Negri Institute for Pharmacological Research, Milan, Italy
| | - N Girtler
- Clinical Neurology, Department of Neurosciences, Rehabilitation, Ophthalmology and Maternal-Fetal Medicine, University of Genoa, Genoa, Italy
| | - T Hensch
- Department of Psychiatry and Psychotherapy, University of Leipzig, Leipzig, Germany
| | - J Jovicich
- Center for Mind/Brain Sciences, University of Trento, Trento, Italy
| | - A Leeuwis
- Department of Neurology, Alzheimer Centre, VU Medical Centre, Amsterdam, the Netherlands
| | - C Marra
- Department of Gerontology, Neurosciences & Orthopedics, Catholic University, Rome, Italy
| | - J L Molinuevo
- Alzheimer's Disease and Other Cognitive Disorders Unit, Hospital Clínic de Barcelona, and IDIBAPS, Barcelona, Catalunya, Spain
| | - F Nobili
- Clinical Neurology, Department of Neurosciences, Rehabilitation, Ophthalmology and Maternal-Fetal Medicine, University of Genoa, Genoa, Italy
| | - J Pariente
- INSERM, Imagerie Cérébrale et Handicaps Neurologiques, Toulouse, France
| | - L Parnetti
- Clinica Neurologica, Università di Perugia, Ospedale Santa Maria della Misericordia, Perugia, Italy
| | - P Payoux
- INSERM, Imagerie Cérébrale et Handicaps Neurologiques, Toulouse, France
| | - C Del Percio
- SDN Istituto di Ricerca Diagnostica e Nucleare, Naples, Italy
| | - J-P Ranjeva
- Aix-Marseille Université, INSERM, Marseille, France.,Service de Neurologie et Neuropsychologie, APHM Hôpital Timone Adultes, Marseille, France
| | - E Rolandi
- Laboratory of Alzheimer's Neuroimaging & Epidemiology, Saint John of God Clinical Research Centre, Brescia, Italy
| | - P M Rossini
- Department of Gerontology, Neurosciences & Orthopedics, Catholic University, Rome, Italy
| | - P Schönknecht
- Department of Psychiatry and Psychotherapy, University of Leipzig, Leipzig, Germany
| | - A Soricelli
- SDN Istituto di Ricerca Diagnostica e Nucleare, Naples, Italy
| | - M Tsolaki
- Third Neurologic Clinic, Medical School, G. Papanikolaou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - P J Visser
- Department of Neurology, Alzheimer Centre, VU Medical Centre, Amsterdam, the Netherlands
| | - J Wiltfang
- Department of Psychiatry and Psychotherapy, Faculty of Medicine, LVR-Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Department of Psychiatry and Psychotherapy, University Medical Center, Georg-August-University, Goettingen, Germany
| | - J C Richardson
- Neurosciences Therapeutic Area, GlaxoSmithKline R&D, Stevenage, UK
| | - R Bordet
- University of Lille, Inserm, CHU Lille, U1171 - Degenerative and Vascular Cognitive Disorders, Lille, France
| | - O Blin
- Mediterranean Institute of Cognitive Neurosciences, Aix Marseille University, Marseille, France
| | - G B Frisoni
- Laboratory of Alzheimer's Neuroimaging & Epidemiology, Saint John of God Clinical Research Centre, Brescia, Italy.,Memory Clinic and LANVIE - Laboratory of Neuroimaging of Aging, University Hospitals and University of Geneva, Geneva, Switzerland
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22
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Hüttenrauch M, Brauß A, Kurdakova A, Borgers H, Klinker F, Liebetanz D, Salinas-Riester G, Wiltfang J, Klafki HW, Wirths O. Physical activity delays hippocampal neurodegeneration and rescues memory deficits in an Alzheimer disease mouse model. Transl Psychiatry 2016; 6:e800. [PMID: 27138799 PMCID: PMC5070068 DOI: 10.1038/tp.2016.65] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 03/11/2016] [Indexed: 01/12/2023] Open
Abstract
The evidence for a protective role of physical activity on the risk and progression of Alzheimer's disease (AD) has been growing in the last years. Here we studied the influence of a prolonged physical and cognitive stimulation on neurodegeneration, with special emphasis on hippocampal neuron loss and associated behavioral impairment in the Tg4-42 mouse model of AD. Tg4-42 mice overexpress Aβ4-42 without any mutations, and develop an age-dependent hippocampal neuron loss associated with a severe memory decline. We demonstrate that long-term voluntary exercise diminishes CA1 neuron loss and completely rescues spatial memory deficits in different experimental settings. This was accompanied by changes in the gene expression profile of Tg4-42 mice. Deep sequencing analysis revealed an upregulation of chaperones involved in endoplasmatic reticulum protein processing, which might be intimately linked to the beneficial effects seen upon long-term exercise. We believe that we provide evidence for the first time that enhanced physical activity counteracts neuron loss and behavioral deficits in a transgenic AD mouse model. The present findings underscore the relevance of increased physical activity as a potential strategy in the prevention of dementia.
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Affiliation(s)
- M Hüttenrauch
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - A Brauß
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - A Kurdakova
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - H Borgers
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - F Klinker
- Department of Clinical
Neurophysiology, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - D Liebetanz
- Department of Clinical
Neurophysiology, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - G Salinas-Riester
- Department of Developmental
Biochemistry, DNA Microarray and Deep-Sequencing Facility, University
Medical Center (UMG), Georg-August-University,
Göttingen, Germany
| | - J Wiltfang
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
- German Center for Neurodegenerative
Diseases (DZNE), Göttingen, Germany
| | - H W Klafki
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
| | - O Wirths
- Department of Psychiatry and
Psychotherapy, University Medical Center (UMG),
Georg-August-University, Göttingen,
Germany
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23
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Abstract
BACKGROUND Depressive disorders are common and lead to both individual suffering and high socioeconomic costs. Despite the fact that several effective therapies are available, remission is often not achieved. Electroconvulsive therapy (ECT) can be a therapeutic option in these cases. OBJECTIVES This review outlines the current evidence for the efficacy, safety and tolerability of ECT for depressive disorders. MATERIAL AND METHODS A selective literature search was carried out with particular consideration of meta-analyses, systematic reviews, and recommendations of national and international therapy guidelines. RESULTS For the majority of patients ECT is an effective, safe and well-tolerated therapy for the treatment of depressive disorders. There are relatively high remission rates even in patients with pharmacoresistant depression. There is evidence for a particularly high responsiveness in specific populations. In contrast to the proven effectiveness in the acute treatment of depressive disorders, there is a relative lack of data concerning maintenance therapy. Side effects including cognitive deficits are mostly transient. Modifications in the ECT technique have an impact on effectiveness and tolerability. CONCLUSION When administered correctly ECT is a highly effective therapy for the treatment of depressive disorders. In the light of the abundance of depressive disorders and lack of remission despite adequate pharmacological treatment, a broader availability and application of ECT would be desirable. The same is true for a more intensive research into the mechanisms of action and response predictors of ECT.
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Affiliation(s)
- D Zilles
- Klinik für Psychiatrie und Psychotherapie, Universitätsmedizin Göttingen, Von-Siebold-Str. 5, 37075, Göttingen, Deutschland,
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24
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Birkenfeld F, Behrens E, Flörke C, Rohnen M, Wieker H, Kern M, Lucius R, Wiltfang J. Mechanical resistance of the periorbita and the orbital floor complex--are isolated orbital floor fractures only a soft tissue problem? Int J Oral Maxillofac Surg 2015; 45:279-83. [PMID: 26586299 DOI: 10.1016/j.ijom.2015.10.015] [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: 06/04/2015] [Revised: 08/01/2015] [Accepted: 10/19/2015] [Indexed: 11/26/2022]
Abstract
The primary aims of orbital floor reconstruction are to prevent enophthalmos and herniation of the orbital contents in order to achieve correct globe position. Theoretically, the mechanical load of the orbital floor is approximately 0.0005N/mm(2) (30g orbital content onto 600mm(2) of orbital floor area). Therefore, low mechanical stress from orbital floor reconstruction materials is expected. The periorbita and orbital floor complex (bony orbital floor with periorbita) of 12 human cadavers were investigated for their mechanical resistance to distortion and compared to different absorbable pliable reconstruction materials after modification with pores (Bio-Gide, Creos, and PDS). The human periorbita resistance (approximately 1.4N/mm(2)) was comparable to that of the absorbable membranes (Creos, Bio-Gide), and the resistance of PDS (approximately 2.3N/mm(2)) was comparable to that of the orbital floor complex. The periorbita has a higher stability than the bony orbital floor. Therefore, in isolated orbital floor fractures with a traumatized bony orbital floor and periorbita, reconstruction of the soft tissue as a periorbita equivalent with a resorbable membrane appears to be adequate to prevent enophthalmos and herniation of the orbital contents.
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Affiliation(s)
- F Birkenfeld
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany.
| | - E Behrens
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany
| | - C Flörke
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany
| | - M Rohnen
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany
| | - H Wieker
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany
| | - M Kern
- Department of Prosthodontics and Dental Materials, Christian-Albrechts University at Kiel, Kiel, Germany
| | - R Lucius
- Department of Anatomy, Christian-Albrechts University at Kiel, Kiel, Germany
| | - J Wiltfang
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany
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25
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Noreik M, Kuhn J, Hardenacke K, Lenartz D, Bauer A, Bührle CP, Häussermann P, Hellmich M, Klosterkötter J, Wiltfang J, Maarouf M, Freund HJ, Visser-Vandewalle V, Sturm V, Schulz RJ. Changes in Nutritional Status after Deep Brain Stimulation of the Nucleus Basalis of Meynert in Alzheimer's Disease--Results of a Phase I Study. J Nutr Health Aging 2015; 19:812-8. [PMID: 26412285 DOI: 10.1007/s12603-015-0595-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 01/03/2023]
Abstract
OBJECTIVE The progression of Alzheimer's disease (AD) is associated with impaired nutritional status. New methods, such as deep brain stimulation (DBS), are currently being tested to decrease the progression of AD. DBS is an approved method in the treatment of Parkinson's disease, and its suitability for the treatment of AD patients is currently under experimental investigation. To evaluate the advantages and disadvantages of this new treatment, it is important to assess potential side effects of DBS regarding the nucleus basalis of Meynert; this new treatment is thought to positively affect cognition and might counteract the deterioration of nutritional status and progressive weight loss observed in AD. This study aims to assess the nutritional status of patients with AD before receiving DBS of the nucleus basalis of Meynert and after 1 year, and to analyze potential associations between changes in cognition and nutritional status. DESIGN A 1-year phase I proof-of-concept study. SETTING The Department of Psychiatry and Psychotherapy at the University of Cologne. PARTICIPANTS We assessed a consecutive sample of patients with mild to moderate AD (n=6) who fulfilled the inclusion criteria and provided written informed consent. INTERVENTION Bilateral low-frequency DBS of the nucleus basalis of Meynert. MEASUREMENTS Nutritional status was assessed using a modified Mini Nutritional Assessment, bioelectrical impedance analysis, a completed 3-day food diary, and analysis of serum levels of vitamin B12 and folate. RESULTS With a normal body mass index (BMI) at baseline (mean 23.75 kg/m²) and after 1 year (mean 24.59 kg/m²), all but one patient gained body weight during the period of the pilot study (mean 2.38 kg, 3.81% of body weight). This was reflected in a mainly stable or improved body composition, assessed by bioelectrical impedance analysis, in five of the six patients. Mean energy intake increased from 1534 kcal/day (min 1037, max 2370) at baseline to 1736 kcal/day (min 1010, max 2663) after 1 year, leading to the improved fulfillment of energy needs in four patients. The only nutritional factors that were associated with changes in cognition were vitamin B12 level at baseline (Spearman's rho = 0.943, p = 0.005) and changes in vitamin B12 level (Spearman's rho = -0.829, p = 0.042). CONCLUSION Patients with AD that received DBS of the nucleus basalis of Meynert demonstrated a mainly stable nutritional status within a 1-year period. Whether DBS is causative regarding these observations must be investigated in additional studies.
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Affiliation(s)
- M Noreik
- M. Noreik, University of Cologne, Medical Faculty, Geriatrics Department, Cologne, Germany,
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26
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Mavridou K, Wiltfang J. Clozapine for the treatment-resistant symptoms of derealisation and obsessive ruminations – A clinical case report. Pharmacopsychiatry 2015. [DOI: 10.1055/s-0035-1558041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Meyer-Roetz S, Scherbaum N, Wiltfang J, Benninghoff J. Effects of the psychopharmacological treatment by an outpatient clinic by patients living in nursing homes. Pharmacopsychiatry 2015. [DOI: 10.1055/s-0035-1558017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Esselmann H, Hafermann C, Jahn O, Kraus I, Vogelgsang J, Haußmann U, Uecker M, Liepold T, Klafki H, Wiltfang J. Analytical methods to explore Amyloid-β-Peptide variants beyond Aβ1-40 and Aβ1-42. Pharmacopsychiatry 2015. [DOI: 10.1055/s-0035-1557950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Vogelgsang J, Wiltfang J, Masliah E, Winkler J, Klucken J. Dopaminergic stimulation in a transgenic model of neurodegeneration restores decreased proliferation and viability in subventricular zone derived adult neural precursor cells. Pharmacopsychiatry 2015. [DOI: 10.1055/s-0035-1558039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Bleich S, Wiltfang J, Wedekind D. Editorial/Opening Words. Pharmacopsychiatry 2015. [DOI: 10.1055/s-0035-1557938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Kraus I, Kraus I, Kraus I, Besong-Agbo D, Otto M, Klafki H, Klafki H, Wiltfang J, Wiltfang J. Measurement of ERK1/2 Isoform distribution in peripheral blood mononuclear cells derived from whole blood from patients with different neuropsychiatric disorders. Pharmacopsychiatry 2015. [DOI: 10.1055/s-0035-1557965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Hüttenrauch M, Brauß A, Kurdakova A, Klafki H, Wiltfang J, Wirths O. Physical activity ameliorates neuron loss and memory deficits in Tg4-42 mice. Pharmacopsychiatry 2015. [DOI: 10.1055/s-0035-1557976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Hüttenrauch M, Brauß A, Kurdakova A, Klafki H, Wiltfang J, Wirths O. Physical activity ameliorates neuron loss and memory deficits in Tg4-42 mice. Pharmacopsychiatry 2015. [DOI: 10.1055/s-0035-1557960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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34
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Vogelgsang J, Wiltfang J, Masliah E, Winkler J, Klucken J. Dopaminergic stimulation in a transgenic model of neurodegeneration restores decreased proliferation and viability in subventricular zone derived adult neural precursor cells. Pharmacopsychiatry 2015. [DOI: 10.1055/s-0035-1558001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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35
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Kraus I, Besong Agbo D, Otto M, Klafki H, Wiltfang J. Measurement of ERK1/2 isoform distribution in peripheral blood mononuclear cells derived from whole blood from patients with different neuropsychiatric disorders. Pharmacopsychiatry 2015. [DOI: 10.1055/s-0035-1558049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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36
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Birkenfeld F, Flörke C, Behrens E, Rohnen M, Kern M, Gassling V, Wiltfang J. Mechanical properties of collagen membranes modified with pores--are they still sufficient for orbital floor reconstruction? Br J Oral Maxillofac Surg 2015; 53:957-62. [PMID: 26255542 DOI: 10.1016/j.bjoms.2015.07.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 01/23/2015] [Accepted: 07/12/2015] [Indexed: 10/23/2022]
Abstract
Adequate mechanical strength is essential for materials used to reconstruct the orbital floor, and collagen membranes have recently been suggested for the repair of isolated fractures of the orbital floor. However, their mechanical properties after modification with pores for increased drainage of blood into the sinus have not been sufficiently investigated. We have tested the mechanical resistance of polydioxanone foils (PDS) to distortion and compared it with that of 3 resorbable collagen membranes (Smartbrane(®), Bio-Gide(®), and Creos(®)) in mint condition and when artificially aged (3 weeks, 6 weeks, and 8 weeks) after modification with pores (diameter 2mm) in a standard configuration (n=12 in each group). PDS and Creos(®) had comparable initial values for mechanical resistance of about 2.3N/mm(2), and Bio-Gide(®) and Smartbrane(®) had about 20% and 80% lower initial mechanical resistance, respectively. All materials tested had lower values after artificial ageing. After eight weeks of ageing, PDS lost about 99% of its initial mechanical resistance, Creos(®) about 66%, Bio-Gide(®) about 30%, and Smartbrane(®) about 95%. After 3 weeks the mechanical resistance in all groups was significantly less than the initial values (p=0.05), but there was no difference between samples aged artificially for 6 compared with 8 weeks. The mechanical resistance of the tested materials was not influenced by the presence of pores in a standard configuration and was in the appropriate range for moderate fractures of the orbital floor. We recommend further clinical investigations of collagen membranes modified with pores.
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Affiliation(s)
- F Birkenfeld
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany.
| | - C Flörke
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany.
| | - E Behrens
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany.
| | - M Rohnen
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany.
| | - M Kern
- Department of Prosthodontics and Dental Materials, Christian-Albrechts University at Kiel, Kiel, Germany.
| | - V Gassling
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany.
| | - J Wiltfang
- Department of Oral and Maxillofacial Surgery, Christian-Albrechts University at Kiel, Kiel, Germany.
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Reissner V, Scherbaum N, Wiltfang J, Kis B, Meiler B, Lieb B, Mikoteit T, Ehren G, Hebebrand J. Psychiatrische Interventionen für Arbeitslose. Nervenarzt 2015; 87:74-81. [DOI: 10.1007/s00115-015-4299-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kuhn J, Hardenacke K, Lenartz D, Gruendler T, Ullsperger M, Bartsch C, Mai JK, Zilles K, Bauer A, Matusch A, Schulz RJ, Noreik M, Bührle CP, Maintz D, Woopen C, Häussermann P, Hellmich M, Klosterkötter J, Wiltfang J, Maarouf M, Freund HJ, Sturm V. Deep brain stimulation of the nucleus basalis of Meynert in Alzheimer's dementia. Mol Psychiatry 2015; 20:353-60. [PMID: 24798585 DOI: 10.1038/mp.2014.32] [Citation(s) in RCA: 157] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 02/06/2014] [Accepted: 02/24/2014] [Indexed: 11/09/2022]
Abstract
Cholinergic neurons of the medial forebrain are considered important contributors to brain plasticity and neuromodulation. A reduction of cholinergic innervation can lead to pathophysiological changes of neurotransmission and is observed in Alzheimer's disease. Here we report on six patients with mild to moderate Alzheimer's disease (AD) treated with bilateral low-frequency deep brain stimulation (DBS) of the nucleus basalis of Meynert (NBM). During a four-week double-blind sham-controlled phase and a subsequent 11-month follow-up open label period, clinical outcome was assessed by neuropsychological examination using the Alzheimer's Disease Assessment Scale-cognitive subscale as the primary outcome measure. Electroencephalography and [(18)F]-fluoro-desoxyglucose positron emission tomography were, besides others, secondary endpoints. On the basis of stable or improved primary outcome parameters twelve months after surgery, four of the six patients were considered responders. No severe or non-transitional side effects related to the stimulation were observed. Taking into account all limitations of a pilot study, we conclude that DBS of the NBM is both technically feasible and well tolerated.
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Affiliation(s)
- J Kuhn
- Department of Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany
| | - K Hardenacke
- Department of Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany
| | - D Lenartz
- Department of Functional Neurosurgery and Stereotaxy, University of Cologne, Cologne, Germany
| | - T Gruendler
- 1] Department of Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany [2] Faculty of Economics, Otto-von-Guericke University Magdeburg, Magdeburg, Germany [3] Center for Behavioral Brain Sciences, Magdeburg, Germany
| | - M Ullsperger
- 1] Center for Behavioral Brain Sciences, Magdeburg, Germany [2] Institute of Psychology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - C Bartsch
- Department of Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany
| | - J K Mai
- Department of Neuroanatomy, University of Düsseldorf, Düsseldorf, Germany
| | - K Zilles
- 1] Institute of Neuroscience and Medicine, Research Centre Juelich, Juelich, Germany [2] University Hospital of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany
| | - A Bauer
- 1] Institute of Neuroscience and Medicine, Research Centre Juelich, Juelich, Germany [2] Department of Neurology, Medical Faculty, University of Düsseldorf, Düsseldorf, Germany
| | - A Matusch
- Institute of Neuroscience and Medicine, Research Centre Juelich, Juelich, Germany
| | - R-J Schulz
- University of Cologne, Department of Geriatrics and St. Marien-Hospital, Cologne, Germany
| | - M Noreik
- University of Cologne, Department of Geriatrics and St. Marien-Hospital, Cologne, Germany
| | - C P Bührle
- Department of Functional Neurosurgery and Stereotaxy, University of Cologne, Cologne, Germany
| | - D Maintz
- University of Cologne, Department for Radiology, Cologne, Germany
| | - C Woopen
- University of Cologne, Research Unit Ethics, Institute for the History of Medicine and Medical Ethics, Cologne, Germany
| | - P Häussermann
- LVR Clinic Cologne, Department of Gerontopsychiatry, Cologne, Germany
| | - M Hellmich
- University of Cologne, Institute of Medical Statistics, Informatics and Epidemiology, Cologne, Germany
| | - J Klosterkötter
- Department of Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany
| | - J Wiltfang
- Department of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August-University, Göttingen, Germany
| | - M Maarouf
- Department of Stereotaxy and Functional Neurosurgery, Klinikum Merheim, Cologne, Germany
| | - H-J Freund
- Department of Neuroanatomy, University of Düsseldorf, Düsseldorf, Germany
| | - V Sturm
- Department of Functional Neurosurgery and Stereotaxy, University of Cologne, Cologne, Germany
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Treumer F, Metzger LM, Both M, Rohnen M, Kandzia C, Wiltfang J, Roider J. [Orbital impalement by wooden foreign bodies - an interdisciplinary challenge]. Klin Monbl Augenheilkd 2015; 232:189-92. [PMID: 25700256 DOI: 10.1055/s-0034-1383386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- F Treumer
- Klinik für Ophthalmologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - L M Metzger
- Klinik für Ophthalmologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - M Both
- Klinik für Radiologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - M Rohnen
- Klinik für Mund-, Kiefer- und Gesichtschirurgie, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - C Kandzia
- Klinik für Ophthalmologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - J Wiltfang
- Klinik für Mund-, Kiefer- und Gesichtschirurgie, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - J Roider
- Klinik für Ophthalmologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel
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Gierloff M, Reutemann M, Gülses A, Niehoff P, Wiltfang J, Açil Y. Effects of zoledronate on the radiation-induced collagen breakdown: a prospective randomized clinical trial. Clin Transl Oncol 2014; 17:454-61. [PMID: 25425023 DOI: 10.1007/s12094-014-1257-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 11/10/2014] [Indexed: 01/02/2023]
Abstract
BACKGROUND A negative side effect of therapeutic irradiation is the radiation-induced bone loss which can lead, in long term, to pathological fractures. Until today, the detailed mechanism is unknown. If osteoclasts would mainly contribute to the pathological bone loss, bisphosphonates could potentially counteract the osteolytic process and possibly help to prevent long-term complications. The aim of this study was to evaluate the effect of zoledronic acid on the early radiation-induced degradation of bone collagen fibrils by monitoring the urinary excretion of hydroxylysylpyridinoline and lysylpyridinoline under radiotherapy. PATIENTS AND METHODS A total of 40 patients with skeletal metastases were assigned for a local radiotherapy and bisphosphonate treatment. The patients were prospectively randomized into two treatment groups: group A (n = 20) received the first zoledronate administration after and group B (n = 20) prior to the radiotherapy. Urine samples were collected from each patient on the first day, in the middle, and on the last day of the radiation therapy. Measurement of the bone metabolites hydroxylysylpyridinoline and lysylpyridinoline was performed by high-performance liquid chromatography. Statistical analysis was performed using the Mann-Whitney U test. RESULTS The hydroxylysylpyridinoline and lysylpyridinoline excretion decreased significantly in the combined bisphosphonate and radiotherapy group (p = 0.02, p = 0.08). No significant change of the hydroxylysylpyridinoline and lysylpyridinoline excretion was determined in the patients that received solely irradiation. CONCLUSION The results indicate the ability of zoledronate to prevent the early radiation-induced bone collagen degradation suggesting that the radiation-induced bone loss is mainly caused by osteoclastic bone resorption rather than by a direct radiation-induced damage.
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Affiliation(s)
- M Gierloff
- Department of Oral and Maxillofacial Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Strasse 3, Haus 26, 24105, Kiel, Germany
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Birkenfeld F, Becker M, Sasse M, Gassling V, Lucius R, Wiltfang J, Kern M. Detection of the genial spinal canal in atrophic mandibles with a CBCT: a cadaver study. Dentomaxillofac Radiol 2014; 44:20140290. [PMID: 25411711 DOI: 10.1259/dmfr.20140290] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The use of a single midline implant to retain a complete mandibular denture when more implants cannot be used is an incipient treatment modality. However, in the mandibular symphysis, the genial spinal canal (GSC) is an anatomical structure with neurovascular content that can be harmed during dental implant surgery. The purpose of the present study was to use CBCT of edentulous atrophic cadaver mandibles and evaluate how often the simulated placement of a single midline implant would contact the GSC if present. METHODS CBCT scans of 47 edentulous cadaver mandibles were performed. A digital simulation of the placement of a single midline implant (3.8 × 11.0 mm) was performed, and the implant-GSC contact was evaluated. RESULTS A GSC was detected in the CBCT scan of all atrophic mandibles. In 42 cases (89.4%), the single midline implant contacted the GSC. On average, the five cases without GSC contact had a higher alveolar ridge (4.1 mm) and a lower GSC (0.79 mm) than did the cases with GSC contact. CONCLUSIONS CBCT scans can adequately detect the GSC during pre-surgical diagnostics. There is a high risk of implant-GSC contact during surgery of the anterior mandible. However, the clinical relevance of such a contact is not known yet, because none of the clinical studies evaluating a single midline implant has reported any implant-GSC contact-related complications.
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Affiliation(s)
- F Birkenfeld
- 1 Department of Oral-Maxillofacial-Surgery, University Hospital Schleswig-Holstein, Kiel, Germany
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Wiltfang J. Principles of internal fixation of the craniomaxillofacial skeleton trauma and orthognathic surgery. J Craniomaxillofac Surg 2014. [DOI: 10.1016/j.jcms.2014.03.002] [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] [Indexed: 10/25/2022] Open
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Gierloff M, Petersen L, Oberg HH, Quabius ES, Wiltfang J, Açil Y. Adipogenic differentiation potential of rat adipose tissue-derived subpopulations of stromal cells. J Plast Reconstr Aesthet Surg 2014; 67:1427-35. [PMID: 24947082 DOI: 10.1016/j.bjps.2014.05.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 05/20/2014] [Indexed: 01/23/2023]
Abstract
Adipose-derived stromal cells (ASCs) are mostly isolated by enzymatic digestion, centrifugation and adherent growth resulting in a very heterogeneous cell population. Therefore, other cell types in the cell culture can comprise the differentiation and proliferation potential of the ASC population. Recent studies indicated that an antibody-aided isolation of distinct ASC subpopulations provides advantages over the conventional method of ASC isolation. The aim of this study was to investigate the adipogenic differentiation potential of CD29-, CD71-, CD73- and CD90-selected ASCs in vitro. The stromal vascular fraction (SVF) was obtained from rat adipose tissue by enzymatic digestion and centrifugation. Subsequently, CD29(+)-, CD71(+)-, CD73(+)- and CD90(+) cells were isolated by magnetic activated cell sorting (MACS), seeded into culture plates and differentiated into the adipogenic lineage. ASCs isolated by adherent growth only served as controls. Adipogenic differentiation was assessed by Oil Red O staining and quantification of the adiponectin and leptin concentrations in the cell culture supernatants. Statistical analysis was carried out using one-way analysis of variance (ANOVA) followed by the Scheffe's post hoc procedure. The results showed that different subpopulations with different adipogenic differentiation potentials can be isolated by the MACS procedure. The highest adipogenic differentiation potential was determined in the CD29-selected ASC population followed by the unsorted ASC population. The CD71-, CD73- and CD90-selected cells exhibited significantly the lowest adipogenic differentiation potential. In conclusion, the CD29-selected ASCs and the unsorted ASCs exhibited a similar adipogenic differentiation potential. Therefore, we do not see a clear advantage in the application of an anti-CD29-based isolation of ASCs over the conventional technique using adherent growth. However, the research on isolation/purification methods of adipogenic ASCs should continue in order to make this stem cell source even more attractive for future adipose tissue engineering applications.
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Affiliation(s)
- M Gierloff
- Department of Oral & Maxillofacial Surgery, Christian-Albrechts-University, Kiel, Germany.
| | - L Petersen
- Department of Oral & Maxillofacial Surgery, Christian-Albrechts-University, Kiel, Germany
| | - H-H Oberg
- Department of Immunology, Christian-Albrechts-University, Kiel, Germany
| | - E S Quabius
- Department of Immunology, Christian-Albrechts-University, Kiel, Germany; Department of Othorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University, Kiel, Germany
| | - J Wiltfang
- Department of Oral & Maxillofacial Surgery, Christian-Albrechts-University, Kiel, Germany
| | - Y Açil
- Department of Oral & Maxillofacial Surgery, Christian-Albrechts-University, Kiel, Germany
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Baumann R, Rabaszowski M, Stenin I, Tilgner L, Gaertner-Akerboom M, Scheckenbach K, Wiltfang J, Chaker A, Schipper J, Wagenmann M. Nasal levels of soluble IL-33R ST2 and IL-16 in allergic rhinitis: inverse correlation trends with disease severity. Clin Exp Allergy 2014; 43:1134-43. [PMID: 24074331 DOI: 10.1111/cea.12148] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 04/16/2013] [Accepted: 05/08/2013] [Indexed: 11/27/2022]
Abstract
BACKGROUND Serum levels of IL-16, IL-33 and the decoy receptor of IL-33, soluble ST2, are elevated in allergic rhinitis. Recent studies show that IL-16, soluble ST2 or anti-IL-33 reduce type 2 cytokines (such as IL-5) and eosinophilia in murine models of allergic asthma or allergic rhinitis respectively. OBJECTIVE In this study, we studied the release of IL-5, IL-16, IL-33 and soluble ST2 in allergic rhinitis patients after nasal allergen challenge and natural pollen exposure. METHODS The nasal lavages of 15 allergic and 14 non-allergic volunteers were collected during the pollen allergy season. In addition, six allergic volunteers underwent unilateral nasal allergen and control challenge out of season and nasal secretions and sera were collected. IL-5, IL-16, IL-33 and soluble ST2 in nasal secretions and sera were measured by electrochemiluminescent assay or ELISA, respectively. RESULTS Nasal IL-5, IL-16 and soluble ST2 levels were significantly increased in seasonally pollen exposed allergic volunteers compared to control subjects (P < 0.001, P = 0.018 and P = 0.002 respectively), whereas IL-33 remained undetectable. Nasal IL-16 showed a weak inverse correlation trend with nasal symptoms (r = -0.48, P = 0.07). Nasal soluble ST2 concentrations were inversely correlated with nasal symptoms (r = -0.61, P = 0.02) and positively correlated with IL-16 (r = 0.56, P = 0.03). Significant increases of nasal IL-5, IL-16 and ST2 but not IL-33 were observed after nasal allergen challenge. At 24 h after allergen challenge, local ST2 and IL-5 concentrations showed an inverse correlation trend (r = -0.83, P = 0.04). Serum levels of IL-5, IL-16 and soluble ST2 rose in at least five of six volunteers tested at 5 or 24 h post-challenge. CONCLUSIONS AND CLINICAL RELEVANCE The observed upregulation of soluble ST2 and IL-16 after nasal allergen challenge and during peak pollination season suggests potential regulatory roles of these cytokines in the inflammatory reaction in allergic rhinitis.
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Affiliation(s)
- R Baumann
- Department of Otorhinolaryngology, Head and Neck Surgery, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany
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Heneweer C, Purcz NM, Schwann M, Rohwedder A, Baltz L, Purcz L, Acil Y, Jansen O, Wiltfang J. Photoakustische Detektion von Sentinel-Lymphknoten und ihre fluoreszenzgestützte Resektion im Plattenepithelkarzinommodell der Maus. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373595] [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: 10/25/2022]
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Gierloff M, Nitsche T, Adam-Klages S, Liebs K, Hedderich J, Gassling V, Wiltfang J, Kabelitz D, Açil Y. Erratum to: In vitro comparison of different carrier materials with rat bone marrow MSCs. Clin Oral Investig 2014. [DOI: 10.1007/s00784-013-1023-2] [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: 11/30/2022]
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Abstract
Since the last 30 years endosseous implants are a well established treatment technique in maxillofacial surgery. Implants are used in the rehabilitation of patients having lost parts of maxilla or mandible due to tumor surgery, or which due to radiotherapy have problems tolerating mucosa-borne dentures. The implant borne prosthesis will aid to regain live quality to those patients. Improvement of live quality is also the result when epithetic reconstructions of soft tissue defects in the face are stabilized by extraoral implants. Aim of the paper is to give an overview on important implant related pathophysiological osseous healing patterns, discuss methods to influence these processes, to show correction possibilities for the bony bed and highlight their indications as well as to inform about clinical experiences with endosseous implants.
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Affiliation(s)
- K A Schlegel
- Klinik und Poliklinik für Mund-, Kiefer-, Gesichtschirurgie, Friedrich-Alexander-Universität Erlangen-Nürnberg Glückstrasse 11, 91054 Erlangen.
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Zepf FD, Sánchez CL, Biskup CS, Kötting WF, Bubenzer S, Helmbold K, Eisert A, Gaber TJ, Landgraf M, Dahmen B, Poustka F, Wöckel L, Stadler C, Grabemann M, Mette C, Heinrich V, Uekermann J, Abdel-Hamid M, Kis B, Zimmermann M, Wiltfang J, Kuhn CM. Acute tryptophan depletion - converging evidence for decreasing central nervous serotonin synthesis in rodents and humans. Acta Psychiatr Scand 2014; 129:157-9. [PMID: 24237607 DOI: 10.1111/acps.12215] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- F D Zepf
- Clinic for Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, RWTH Aachen University, Aachen, Germany; JARA Translational Brain Medicine, Aachen, Jülich, Germany; Institute for Neuroscience and Medicine, Jülich Research Centre, Jülich, Germany.
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Abdel-Hamid M, Grabemann M, Kownatka M, Zwarg T, Esselmann H, Zimmermann M, Mette C, Wiltfang J, Kis B. “The Star Trek Universe”: The change in perception of mental disease and its treatment during the last five decades. Pharmacopsychiatry 2013. [DOI: 10.1055/s-0033-1353358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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