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Mengel D, Wellik IG, Schuster KH, Jarrah SI, Wacker M, Ashraf NS, Öz G, Synofzik M, Costa MDC, McLoughlin HS. Blood levels of neurofilament light are associated with disease progression in a mouse model of spinocerebellar ataxia type 3. Dis Model Mech 2023; 16:dmm050144. [PMID: 37664882 PMCID: PMC10499033 DOI: 10.1242/dmm.050144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 08/15/2023] [Indexed: 09/05/2023] Open
Abstract
Increased neurofilament light (NfL; NEFL) protein in biofluids is reflective of neurodegeneration and has gained interest as a biomarker across neurodegenerative diseases. In spinocerebellar ataxia type 3 (SCA3), the most common dominantly inherited ataxia, patients exhibit progressive NfL increases in peripheral blood when becoming symptomatic, and NfL remains stably elevated throughout further disease course. However, progressive NfL changes are not yet validated in relevant preclinical SCA3 animal models, hindering its application as a biomarker during therapeutic development. We used ultra-sensitive single-molecule array (Simoa) to measure blood NfL over disease progression in YACQ84 mice, a model of SCA3, assessing relationships with measures of disease severity including age, CAG repeat size and magnetic resonance spectroscopy. YACQ84 mice exhibited plasma NfL increases that were concomitant with ataxia-related motor deficits as well as increased serum NfL, which correlated with previously established neurometabolite abnormalities, two relevant measures of disease in patients with SCA3. Our findings establish the progression of NfL increases in the preclinical YACQ84 mouse, further supporting the utility of blood NfL as a peripheral neurodegeneration biomarker and informing on coinciding timelines of different measures of SCA3 pathogenesis.
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Affiliation(s)
- David Mengel
- Research Division Translational Genomics of Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Tübingen 72076,Germany
- German Center for Neurodegenerative Diseases (DZNE), University of Tübingen, Tübingen 72076, Germany
| | - Isabel G. Wellik
- Department of Neurology, University of Michigan, Ann Arbor, MI 48109-2200, USA
| | - Kristen H. Schuster
- Department of Neurology, University of Michigan, Ann Arbor, MI 48109-2200, USA
| | - Sabrina I. Jarrah
- Department of Neurology, University of Michigan, Ann Arbor, MI 48109-2200, USA
| | - Madeleine Wacker
- Research Division Translational Genomics of Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Tübingen 72076,Germany
- German Center for Neurodegenerative Diseases (DZNE), University of Tübingen, Tübingen 72076, Germany
| | - Naila S. Ashraf
- Department of Neurology, University of Michigan, Ann Arbor, MI 48109-2200, USA
| | - Gülin Öz
- Center for Magnetic Resonance Research, Department of Radiology, Medical School, University of Minnesota, Minneapolis, MN 55455, USA
| | - Matthis Synofzik
- Research Division Translational Genomics of Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Tübingen 72076,Germany
- German Center for Neurodegenerative Diseases (DZNE), University of Tübingen, Tübingen 72076, Germany
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Mengel D, Wellik IG, Schuster KH, Jarrah SI, Wacker M, Ashraf NS, Öz G, Synofzik M, do Carmo Costa M, McLoughlin HS. Blood neurofilament light chain levels are associated with disease progression in a transgenic SCA3 mouse model. bioRxiv 2023:2023.02.28.530463. [PMID: 36909535 PMCID: PMC10002656 DOI: 10.1101/2023.02.28.530463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Increased neurofilament light (NfL) protein in biofluids is reflective of neurodegeneration and has gained interest as a biomarker across neurodegenerative diseases. In spinocerebellar ataxia type 3 (SCA3), the most common dominantly inherited ataxia, patients exhibit progressive NfL increases in peripheral blood when becoming symptomatic, remaining stably elevated throughout further disease course. However, progressive NfL changes are not yet validated in relevant preclinical SCA3 animal models, hindering its application as a biomarker during therapeutic development. We used ultra-sensitive single-molecule array (Simoa) to measure blood NfL over disease progression in the YACQ84 mouse, assessing relationships with measures of disease severity including age, CAG repeat size, and magnetic resonance spectroscopy. We show that YACQ84 mice exhibit increased blood NfL, concomitant with ataxia-related motor deficits and correlated with neurometabolite abnormalities. Our findings establish natural history progression of NfL increases in the preclinical YACQ84 mouse, further supporting the utility of blood NfL as a peripheral neurodegeneration biomarker and informing coinciding timelines of different measures of SCA3 pathogenesis. Summary statement Peripheral blood of SCA3 YACQ84 mice exhibits increased abundance of neuronal-specific NfL protein directly associating with disease progression, providing an accessible disease biofluid biomarker to interrogate in preclinical therapeutic studies.
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Affiliation(s)
- David Mengel
- Research Division Translational Genomics of Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Tübingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), University of Tübingen, Tübingen, Germany
| | - Isabel G. Wellik
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
| | | | | | - Madeleine Wacker
- Research Division Translational Genomics of Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Tübingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), University of Tübingen, Tübingen, Germany
| | - Naila S. Ashraf
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
| | - Gülin Öz
- Center for Magnetic Resonance Research, Department of Radiology, Medical School, University of Minnesota, Minneapolis, MN, USA
| | - Matthis Synofzik
- Research Division Translational Genomics of Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Tübingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), University of Tübingen, Tübingen, Germany
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Wacker M, Thewes L, Lux A, Busk H, Scherner M, Awad G, Varghese S, Slottosch I. Uniportal Video-Assisted Thoracotomy during Excimer Laser-Guided Cardiac Implantable Electronic Devices Lead Extraction: A 5-Year Single-Centre Experience. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725712] [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]
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Wacker M, Riedel J, Scherner M, Awad G, Wippermann J, Veluswamy P, Walles H, Hülsmann J. Protein Coating of Bacterial Nanocellulose Small Diameter Vascular Grafts Leads to Improved Endothelialization. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725705] [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]
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Awad G, Pohl R, Darius S, Wacker M, Varghese S, Kuzmin B, Slottosch I, Wippermann J, Böckelmann I, Scherner M. Quantifying the Stress Levels of Cardiac Surgery Residents during Coronary Artery Bypass Grafting. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725848] [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]
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Varghese S, Awad G, Saha S, Wacker M, Slottosch I, Staack T, Wippermann J, Scherner M. Complications following Left Ventricular Assist Device Implantation—Comparison of HeartWare and HeartMate III: A Single-Center 5-Year Experience. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705395] [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]
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Kuzmin B, Knüppel P, Lux A, Scherner M, Slottosch I, Awad G, Varghese S, Argawi A, Wippermann J, Wacker M. Detection of Postoperative Atrial Fibrillation with a Smart Watch: Preliminary Results of a Clinical Investigation. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705422] [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]
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Lutter J, Wacker M, Jörres RA, Schulz H, Karrasch S, Karch A, Leidl R, Watz H, Vogelmeier C, Holle R. Welche Faktoren prädizieren eine Verschlechterung der gesundheitsbezogenen Lebensqualität bei COPD? Erste längsschnittliche Ergebnisse der COSYCONET COPD-Kohorte. Pneumologie 2018. [DOI: 10.1055/s-0037-1619341] [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: 10/28/2022]
Affiliation(s)
- J Lutter
- Institut für Gesundheitsökonomie und Management im Gesundheitswesen, Helmholtz Zentrum München; Comprehensive Pneumology Center Munich (CPC-M), Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - M Wacker
- Institut für Gesundheitsökonomie und Management im Gesundheitswesen, Helmholtz Zentrum München; Comprehensive Pneumology Center Munich (CPC-M), Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - RA Jörres
- Institut für Arbeits-, Sozial- und Umweltmedizin, Ludwigs-Maximilians-Universität München
| | - H Schulz
- Institut für Epidemiologie, Helmholtz Zentrum München; Comprehensive Pneumology Center Munich (CPC-M), Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - S Karrasch
- Institut für Epidemiologie, Helmholtz Zentrum München; Comprehensive Pneumology Center Munich (CPC-M), Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - A Karch
- Institut für Biometrie, Medizinische Hochschule Hannover
| | - R Leidl
- Institut für Gesundheitsökonomie und Management im Gesundheitswesen, Helmholtz Zentrum München; Comprehensive Pneumology Center Munich (CPC-M), Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - H Watz
- Pneumologisches Forschungsinstitut an der Lungenclinic Grosshansdorf GmbH, ARCN, Mitglied im Deutschen Zentrum für Lungenforschung (DZL)
| | - C Vogelmeier
- Klinik für Innere Medizin, Schwerpunkt Pneumologie, UGMLC, Philipps-Universität Marburg, Mitglied im Deutschen Zentrum für Lungenforschung (DZL)
| | - R Holle
- Institut für Gesundheitsökonomie und Management im Gesundheitswesen, Helmholtz Zentrum München; Comprehensive Pneumology Center Munich (CPC-M), Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
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Kreuter M, Herth FJF, Wacker M, Witt S, Kabitz HJ, Hagmeyer L, Hammerl P, Esselmann A, Wiederholf C, Skowasch D, Stolpe C, Joest M, Veitshans S, Leidl R, Hellmann A, Pfeifer M, Behr J, Kauschka D, Mall M, Günther A, Markart P. Diagnostik und Therapie von Patienten mit interstitiellen Lungenerkrankungen in Deutschland – das EXCITING ILD Register. Pneumologie 2018. [DOI: 10.1055/s-0037-1619191] [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: 10/28/2022]
Affiliation(s)
- M Kreuter
- Zentrum für Interstitielle und Seltene Lungenerkrankungen, Pneumologie und Beatmungsmedizin, Thoraxklinik; Universitätsklinikum Heidelberg und Translationales Zentrum für Lungenforschung Heidelberg (TLRC); Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - FJF Herth
- Centre for Interstitial and Rare Lung Diseases, Pneumology and Respiratory Critical Care Medicine, Thoraxklinik, University of Heidelberg
| | - M Wacker
- Institute of Health Economics and Healthcare Management, Helmholtz Centre Munich GmbH, German Research Centre for Environmental Health, Member of the German Centre for Lung Research (DZL), Comprehensive Pneumology Centre Munich (CPC-M)
| | - S Witt
- Institute of Health Economics and Healthcare Management, Helmholtz Centre Munich GmbH, German Research Centre for Environmental Health, Member of the German Centre for Lung Research (DZL), Comprehensive Pneumology Centre Munich (CPC-M)
| | | | - L Hagmeyer
- Clinic of Pneumology and Allergology, Center of Sleep Medicine and Respiratory Care, Hospital Bethanien Solingen
| | | | - A Esselmann
- Outpatient Center for Pulmonology, Warendorf
| | | | - D Skowasch
- Medical Clinic II, University Hospital Bonn
| | - C Stolpe
- Outpatient Center for Pulmonology, Ibbenbüren
| | - M Joest
- Malteser Center for Pulmonology and Allergology, Bonn
| | - S Veitshans
- Outpatient Center for Pulmonology, Böblingen
| | - R Leidl
- Institute of Health Economics and Healthcare Management, Helmholtz Centre Munich GmbH, German Research Centre for Environmental Health, Member of the German Centre for Lung Research (DZL), Comprehensive Pneumology Centre Munich (CPC-M)
| | - A Hellmann
- Outpatient Center for Pulmonology, Augsburg
| | - M Pfeifer
- Klinik Donaustauf und Universitätsklinikum Regensburg
| | | | | | - M Mall
- Translational Pulmonology, University of Heidelberg, Germany, Member of the German Center for Lung Research (TLRC)
| | - A Günther
- Universitätsklinikum Gießen und Marburg
| | - P Markart
- Medical Clinic II, University Hospital Gießen, Universities of Gießen and Marburg Lung Centre (Ugmlc), Member and Medical Clinic V (Pneumology), Cardiothoracic Centre, Campus Fulda, University Medicine Marburg
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Kahnert K, Alter P, Young D, Lucke T, Heinrich J, Huber RM, Behr J, Wacker M, Biertz F, Watz H, Bals R, Welte T, Wirtz H, Herth FJF, Vestbo J, Wouters EFM, Vogelmeier C, Jörres RA. The revised GOLD 2017 COPD categorization in relation to comorbidities. Pneumologie 2018. [DOI: 10.1055/s-0037-1619396] [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: 10/28/2022]
Affiliation(s)
- K Kahnert
- Medizinische Klinik V, Klinikum der Universität München LMU
| | - P Alter
- Innere Medizin, Schwerpunkt Pneumologie, Universitätsklinikum Gießen und Marburg, Standort Marburg
| | - D Young
- David Young Communications, Horsham, UK
| | - T Lucke
- Klinikum der Universität München
| | - J Heinrich
- Institut für Epidemiologie I, Helmholtz Zentrum München – Deutsches Forschungszentrum für Gesundheit und Umwelt; Comprehensive Pneumology Center Munich (CPC-M), Mitglied des Deutschen Zentrums für Lungenforschung (DZL); German Research Center for Environmental Health
| | - RM Huber
- Division of Respiratory Medicine and Thoracic Oncology, Department of Internal Medicine V, Ludwig Maximilian University of Munich and Thoracic Oncology Centre
| | - J Behr
- Medizinische Klinik und Poliklinik V, Klinikum der LMU München, Comprehensive Pneumology Center
| | - M Wacker
- Institut für Gesundheitsökonomie und Management im Gesundheitswesen, Helmholtz Zentrum München; Comprehensive Pneumology Center Munich (CPC-M), Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - F Biertz
- Institut für Biometrie, Medizinische Hochschule Hannover
| | - H Watz
- Pneumologisches Forschungsinstitut an der Lungenclinic Grosshansdorf
| | - R Bals
- Klinik für Innere Medizin V, Universitätsklinikum des Saarlandes, Homburg
| | - T Welte
- Klinik für Pneumologie, Medizinische Hochschule Hannover
| | - H Wirtz
- Pneumologie, Universitätsklinikum der Universität Leipzig
| | - FJF Herth
- Pneumology, Institute of Internal Medicine III, Thoraxklinik, University Hospital Heidelberg
| | - J Vestbo
- Respiratory Research Group, Manchester Academic Health Sciences Centre
| | | | - C Vogelmeier
- Pulmonary and Critical Care Medicine, Department of Medicine, University Medical Centre Gießen and Marburg, Phillips-University Marburg, Member of the German Centre for Lung Research (DZL)
| | - RA Jörres
- Institut und Poliklinik für Arbeits-, Sozial- und Umweltmedizin, Klinikum der LMU München
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Witte H, Wacker M. Time-frequency Techniques in Biomedical Signal Analysis. Methods Inf Med 2018; 52:279-96. [DOI: 10.3414/me12-01-0083] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 11/16/2012] [Indexed: 11/09/2022]
Abstract
SummaryObjectives: This review outlines the method -ological fundamentals of the most frequently used non-parametric time-frequency analysis techniques in biomedicine and their main properties, as well as providing decision aids concerning their applications.Methods: The short-term Fourier transform (STFT), the Gabor transform (GT), the S-transform (ST), the continuous Morlet wavelet transform (CMWT), and the Hilbert transform (HT) are introduced as linear transforms by using a unified concept of the time-frequency representation which is based on a standardized analytic signal. The Wigner-Ville dis -tribution (WVD) serves as an example of the ‘quadratic transforms’ class. The combination of WVD and GT with the matching pursuit (MP) decomposition and that of the HT with the empirical mode decomposition (EMD) are explained; these belong to the class of signal-adaptive approaches.Results: Similarities between linear transforms are demonstrated and differences with regard to the time-frequency resolution and interference (cross) terms are presented in detail. By means of simulated signals the effects of different time-frequency resolutions of the GT, CMWT, and WVD as well as the resolution-related properties of the inter -ference (cross) terms are shown. The method-inherent drawbacks and their consequences for the application of the time-frequency techniques are demonstrated by instantaneous amplitude, frequency and phase measures and related time-frequency representations (spectrogram, scalogram, time-frequency distribution, phase-locking maps) of measured magnetoencephalographic (MEG) signals.Conclusions: The appropriate selection of a method and its parameter settings will ensure readability of the time-frequency representations and reliability of results. When the time-frequency characteristics of a signal strongly correspond with the time-frequency resolution of the analysis then a method may be considered ‘optimal’. The MP-based signal-adaptive approaches are preferred as these provide an appropriate time-frequency resolution for all frequencies while simultaneously reducing interference (cross) terms.
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Wacker M, Slottosch I, Scherner M, Wendt S, Schlachtenberger G, Wahlers T, Wippermann J. Dealing with Sternal Wound Healing Disorders after Cardiac Surgery: Bacterial Spectrum and Implications for Antibiotic Therapy. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1627932] [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: 10/28/2022]
Affiliation(s)
- M. Wacker
- Klinik für Herz- und Thoraxchirurgie, Uniklinik Magdeburg, Magdeburg, Germany
| | - I. Slottosch
- Klinik für Herz- und Thoraxchirurgie, Uniklinik Magdeburg, Magdeburg, Germany
| | - M. Scherner
- Klinik für Herz- und Thoraxchirurgie, Uniklinik Magdeburg, Magdeburg, Germany
| | - S. Wendt
- Klinik für Herz- und Thoraxchirurgie, Uniklinik Köln, Köln, Germany
| | | | - T. Wahlers
- Klinik für Herz- und Thoraxchirurgie, Uniklinik Köln, Köln, Germany
| | - J. Wippermann
- Klinik für Herz- und Thoraxchirurgie, Uniklinik Magdeburg, Magdeburg, Germany
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Wacker M, Slottosch I, Scherner M, Varghese S, Wippermann J. First Case of Late Onset Valve Dislocation after Aortic Valve Replacement with the Edwards Intuity Elite Rapid-Deployment Bioprosthesis. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1628112] [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: 10/28/2022]
Affiliation(s)
- M. Wacker
- Klinik für Herz- und Thoraxchirurgie, Uniklinik Magdeburg Magdeburg, Germany
| | - I. Slottosch
- Klinik für Herz- und Thoraxchirurgie, Uniklinik Magdeburg Magdeburg, Germany
| | - M. Scherner
- Klinik für Herz- und Thoraxchirurgie, Uniklinik Magdeburg Magdeburg, Germany
| | - S. Varghese
- Klinik für Herz- und Thoraxchirurgie, Uniklinik Magdeburg Magdeburg, Germany
| | - J. Wippermann
- Klinik für Herz- und Thoraxchirurgie, Uniklinik Magdeburg Magdeburg, Germany
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Luzak A, Karrasch S, Wacker M, Nowak D, Peters A, Schulz H. Sind Beeinträchtigungen der Lebensqualität (Dimensionen des EQ-5D) bereits bei Lungengesunden mit Lungenfunktion assoziiert (KORA F4L & Age). Das Gesundheitswesen 2017. [DOI: 10.1055/s-0037-1605787] [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: 10/18/2022]
Affiliation(s)
- A Luzak
- Institut für Epidemiologie I, Helmholtz Zentrum München – Deutsches Forschungszentrum für Gesundheit und Umwelt, Neuherberg
| | - S Karrasch
- Institut für Epidemiologie I, Helmholtz Zentrum München – Deutsches Forschungszentrum für Gesundheit und Umwelt, Neuherberg
- Institut und Poliklinik für Arbeits-, Sozial- und Umweltmedizin, Klinikum der Ludwig-Maximilians-Universität, München
| | - M Wacker
- Institut für Gesundheitsökonomie und Management im Gesundheitswesen, Helmholtz Zentrum München – Deutsches Forschungszentrum für Gesundheit und Umwelt, Neuherberg
| | - D Nowak
- Institut und Poliklinik für Arbeits-, Sozial- und Umweltmedizin, Klinikum der Ludwig-Maximilians-Universität, München
- Comprehensive Pneumology Center Munich (CPC-M), Mitglied des Deutschen Zentrums für Lungenforschung (DZL), München
| | - A Peters
- Institut für Epidemiologie II, Helmholtz Zentrum München – Deutsches Forschungszentrum für Gesundheit und Umwelt, Neuherberg
| | - H Schulz
- Institut für Epidemiologie I, Helmholtz Zentrum München – Deutsches Forschungszentrum für Gesundheit und Umwelt, Neuherberg
- Comprehensive Pneumology Center Munich (CPC-M), Mitglied des Deutschen Zentrums für Lungenforschung (DZL), München
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Kessler ER, Gao D, Flaig TW, Breaker K, Wold M, Wacker M, Lam ET. Phase II study of cabazitaxel with or without abiraterone acetate and prednisone in patients with metastatic castrate resistant prostate cancer after prior docetaxel and abiraterone acetate. Ann Oncol 2017; 28:668. [PMID: 28426121 DOI: 10.1093/annonc/mdw674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- E R Kessler
- University of Colorado School of Medicine, Division of Medical Oncology, Aurora, Colorado, USA
| | - D Gao
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - T W Flaig
- Division of Medical Oncology, University of Colorado, School of Medicine, University of Colorado Cancer Center, Aurora, Colorado, USA
| | - K Breaker
- Division of Medical Oncology, University of Colorado, School of Medicine, University of Colorado Cancer Center, Aurora, Colorado, USA
| | - M Wold
- Department of Hematology, St Olavs Hospital, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - M Wacker
- German Research Center for Environmental Health, Institute of Health Economics and Health Care Management, Member of the German Center for Lung Research, Comprehensive Pneumology Center Munich (CPC-M), Neuherberg, Germany
| | - E T Lam
- Division of Medical Oncology, University of Colorado, School of Medicine, University of Colorado Cancer Center, Aurora, Colorado, USA
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Karl FM, Holle R, Bals R, Greulich T, Jörres RA, Karch A, Karrasch S, Koch A, Leidl R, Schulz H, Vogelmeier C, Wacker M. Kosten und gesundheitsbezogene Lebensqualität bei COPD-Patienten mit Alpha-1-Antitrypsin-Mangel: Ergebnisse der COSYCONET COPD-Kohorte. Pneumologie 2017. [DOI: 10.1055/s-0037-1598549] [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: 10/20/2022]
Affiliation(s)
- FM Karl
- Helmholtz Zentrum München, Institut für Gesundheitsökonomie und Management Im Gesundheitswesen, Comprehensive Pneumology Center Munich (Cpc-M), Mitglied des Deutschen Zentrums für Lungenforschung (Dzl)
| | - R Holle
- Helmholtz Zentrum München, Institut für Gesundheitsökonomie und Management Im Gesundheitswesen, Comprehensive Pneumology Center Munich (Cpc-M), Mitglied des Deutschen Zentrums für Lungenforschung (Dzl)
| | - R Bals
- Klinik für Innere Medizin V, Universitätsklinikum des Saarlandes
| | - T Greulich
- Klinik für Innere Medizin Schwerpunkt Pneumologie, Universitätsklinikum Marburg, Universities Gießen and Marburg Lung Center (Ugmlc), Mitglied des Deutschen Zentrums für Lungenforschung
| | - RA Jörres
- Arbeits-, Sozial- und Umweltmedizin, Ludwig-Maximilians-Universität München
| | - A Karch
- Institut für Biometrie, Medizinische Hochschule Hannover
| | - S Karrasch
- Institut für Epidemiologie I, Helmholtz Zentrum München, Comprehensive Pneumology Center Munich (Cpc-M), Mitglied des Deutschen Zentrums für Lungenforschung (Dzl)
| | - A Koch
- Institut für Biometrie, Medizinische Hochschule Hannover
| | - R Leidl
- Helmholtz Zentrum München, Institut für Gesundheitsökonomie und Management Im Gesundheitswesen, Comprehensive Pneumology Center Munich (Cpc-M), Mitglied des Deutschen Zentrums für Lungenforschung (Dzl)
| | - H Schulz
- Institut für Epidemiologie I, Helmholtz Zentrum München, Comprehensive Pneumology Center Munich (Cpc-M), Mitglied des Deutschen Zentrums für Lungenforschung (Dzl)
| | - C Vogelmeier
- Klinik für Innere Medizin Schwerpunkt Pneumologie, Universitätsklinikum Marburg, Universities Gießen and Marburg Lung Center (Ugmlc), Mitglied des Deutschen Zentrums für Lungenforschung
| | - M Wacker
- Helmholtz Zentrum München, Institut für Gesundheitsökonomie und Management Im Gesundheitswesen, Comprehensive Pneumology Center Munich (Cpc-M), Mitglied des Deutschen Zentrums für Lungenforschung (Dzl)
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Kreuter M, Wacker M, Hammerl P, Wiederhold C, Kabitz HJ, Hagmeyer L, Skowasch D, Leidl R, Hellmann A, Pfeifer M, Behr J, Witt S, Kauschka D, Mall M, Günther A, Herth FJF, Markart P. Interims Analyse des EXCITING-ILD Registers (Registry for Exploring Clinical and Epidemiological Characteristics of Interstitial Lung Diseases). Pneumologie 2017. [DOI: 10.1055/s-0037-1598497] [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: 10/20/2022]
Affiliation(s)
- M Kreuter
- Pneumologie und Beatmungsmedizin, Thoraxklinik, Universitätsklinikum Heidelberg und Translationales Zentrum für Lungenforschung Heidelberg (Tlrc), Mitglied des Deutschen Zentrums für Lungenforschung (Dzl)
| | - M Wacker
- Helmholtz Zentrum München, Institut für Gesundheitsökonomie und Management Im Gesundheitswesen, Comprehensive Pneumology Center Munich (Cpc-M), Mitglied des Deutschen Zentrums für Lungenforschung (Dzl)
| | | | | | - HJ Kabitz
- II. Medizinische Klinik, Klinikum Konstanz
| | - L Hagmeyer
- Klinik für Pneumologie und Allergologie, Krankenhaus Bethanien gGmbH
| | - D Skowasch
- Medizinische Klinik II, Kardiologie, Pneumologie, Uniklinikum Bonn
| | - R Leidl
- Institut für Gesundheitsökonomie und Management Im Gesundheitswesen, Helmholtz Zentrum München, Comprehensive Pneumology Center Munich (Cpc-M), Mitglied des Deutschen Zentrums für Lungenforschung (Dzl)
| | | | - M Pfeifer
- Krankenhaus Donaustauf; Universität Regensburg
| | - J Behr
- Zentrum für Pneumologie und Thoraxchirurgie, Asklepios Fachkliniken München-Gauting; Med. Klinik V, LMU, München, Mitglied des Dzl
| | - S Witt
- Institut für Gesundheitsökonomie und Management Im Gesundheitswesen, Helmholtz Zentrum München
| | - D Kauschka
- C/O Dagmar Kauschka, 1. Vorsitzende, Lungenfibrose e.V
| | - M Mall
- Zentrum für Kinder- und Jugendmedizin, Sektion Pädiatrische Pneumologie & Allergologie und Mukoviszidose-Zentrum, Universitätsklinikum Heidelberg
| | - A Günther
- Med. Klinik II, Schwerpunkt Pneumologie, Univ.-Klinikum Gießen
| | - FJF Herth
- Pneumologie und Beatmungsmedizin, Thoraxklinik, Universitätsklinikum Heidelberg und Translationales Zentrum für Lungenforschung Heidelberg (Tlrc), Mitglied des Deutschen Zentrums für Lungenforschung (Dzl)
| | - P Markart
- Medizinische Klinik V, Klinikum Fulda
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18
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Scherner M, Reinhardt S, Wacker M, Weber C, Eghbalzadeh K, Klemm D, Maul A, Sterner-Kock A, Wahlers T, Wippermann J. Tissue Engineered Blood Vessels of Bacterial Nanocellulose: Impact of Surface Modification on Patency and Cell Immigration. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- M. Scherner
- Heart Centre - Cardiothoracic Surgery, University of Cologne, Köln, Germany
| | - S. Reinhardt
- Heart Centre - Cardiothoracic Surgery, University of Cologne, Köln, Germany
| | - M. Wacker
- Heart Centre - Cardiothoracic Surgery, University of Cologne, Köln, Germany
| | - C. Weber
- Heart Centre - Cardiothoracic Surgery, University of Cologne, Köln, Germany
| | - K. Eghbalzadeh
- Heart Centre - Cardiothoracic Surgery, University of Cologne, Köln, Germany
| | - D. Klemm
- Chemistry, University of Jena, Jena, Germany
| | - A. Maul
- Experimental Medicine, University Hospital of Cologne, Köln, Germany
| | - A. Sterner-Kock
- Experimental Medicine, University Hospital of Cologne, Köln, Germany
| | - T. Wahlers
- Heart Centre - Cardiothoracic Surgery, University of Cologne, Köln, Germany
| | - J. Wippermann
- Heart Centre - Cardiothoracic Surgery, University of Cologne, Köln, Germany
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19
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Wacker M, Hassan S, El M, Deppe A, Mehler O, Wahlers T, Paunel-Görgülü A. Neutrophil Extracellular Traps as Predictive Markers of Inflammation in Patients Undergoing Cardiac Surgery with Cardiopulmonary Bypass. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598943] [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: 10/20/2022]
Affiliation(s)
- M. Wacker
- University Hospital Cologne, Department of Cardiothoracic Surgery, Cologne, Germany
| | - S. Hassan
- University Hospital Cologne, Department of Cardiothoracic Surgery, Cologne, Germany
| | - M. El
- University Hospital Cologne, Department of Cardiothoracic Surgery, Cologne, Germany
| | - A. Deppe
- University Hospital Cologne, Department of Cardiothoracic Surgery, Cologne, Germany
| | - O. Mehler
- University Hospital Cologne, Department of Anaesthesiology and Intensive Care Medicine, Cologne, Germany
| | - T. Wahlers
- University Hospital Cologne, Department of Cardiothoracic Surgery, Cologne, Germany
| | - A. Paunel-Görgülü
- University Hospital Cologne, Department of Cardiothoracic Surgery, Cologne, Germany
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20
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Karrasch S, Obst A, Söhler S, Thorand B, Huth C, Ladwig KH, Flexeder C, Wacker M, Peters A, Heinrich J, Ewert R, Jörres RA, Vogelmeier C, Gläser S, Schulz H. Prävalenz von Komorbiditäten bei COPD-Patienten und lungengesunden Kontrollen der Studie COSYCONET. Pneumologie 2016. [DOI: 10.1055/s-0036-1571970] [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: 10/22/2022]
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21
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Kreuter M, Herth FJF, Wacker M, Leidl R, Hellmann A, Pfeifer M, Behr J, Witt S, Kauschka D, Mall M, Günther A, Markart P. Interims Analyse des EXCITING-ILD Registers (Registry for Exploring Clinical and Epidemiological Characteristics of Interstitial Lung Diseases). Pneumologie 2016. [DOI: 10.1055/s-0036-1572075] [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: 10/22/2022]
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22
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Wacker M, Jörres RA, Schulz H, Heinrich J, Karrasch S, Koch A, Karch A, Peters A, Leidl R, Vogelmeier C, Holle R. Direkte und indirekte Kosten bei COPD: Ergebnisse der COSYCONET COPD Kohorte im Vergleich zu bevölkerungsbezogenen Kontrollen. Pneumologie 2016. [DOI: 10.1055/s-0036-1572263] [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: 10/22/2022]
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23
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Schwarzkopf L, Wacker M, Ertl J, Leidl R. Vergleich der Versorgungskosten von COPD-Patienten mit und ohne ischämische Herzerkrankung – erste Ergebnisse einer Kassendatenanalyse. Pneumologie 2016. [DOI: 10.1055/s-0036-1572267] [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: 10/22/2022]
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24
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Sommer S, Wegmann-Herr P, Wacker M, Fischer UF. Rationale for a Stronger Disposition of Chardonnay Wines for Stuck and Sluggish Fermentation. S AFR J ENOL VITIC 2015. [DOI: 10.21548/36-1-951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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25
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Weistenhöfer W, Wacker M, Bernet F, Uter W, Drexler H. Occlusive gloves and skin conditions: is there a problem? Results of a cross-sectional study in a semiconductor company. Br J Dermatol 2015; 172:1058-65. [PMID: 25319754 DOI: 10.1111/bjd.13481] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2014] [Indexed: 12/19/2022]
Abstract
BACKGROUND Although there is poor scientific evidence that working with occlusive gloves is as damaging as wet work, prolonged glove occlusion is considered to be a risk factor for developing hand eczema similar to wet work. OBJECTIVES To assess the effects of wearing occlusive gloves during the whole working day, without exposure to any additional hazardous substances, on skin condition and skin barrier function. METHODS We investigated 323 employees of a semiconductor production company in Germany: 177 clean-room workers wearing occlusive gloves during the whole shift (exposed group) and 146 employees working in administration (control group). A standardized interview was performed, the skin condition of both hands was studied using the quantitative skin score HEROS, and transepidermal water loss (TEWL) and stratum corneum hydration were measured. RESULTS There was no significant difference in skin condition between the two subgroups. Values for TEWL and corneometry were significantly higher in exposed participants (P < 0·05). However, the TEWL values were similar to control values if participants took off the occlusive gloves at least 30 min before the measurement. Hence, the effect of occlusion on skin barrier function seems to be transient. CONCLUSIONS Prolonged wearing of occlusive gloves with clean hands and without exposure to additional hazardous substances does not seem to affect the skin negatively.
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Affiliation(s)
- W Weistenhöfer
- Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, University of Erlangen-Nuremberg, D-91054, Erlangen, Germany
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26
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Schwarzkopf L, Wacker M, Leidl R, Huber RM, Holle R. Analyse der Versorgungssitutation von Lungenkrebspatienten anhand von GKV-Routinedaten. Pneumologie 2015. [DOI: 10.1055/s-0035-1544651] [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: 10/24/2022]
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27
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Lingner H, Aumann I, Gottlieb J, Leidl R, Vogel M, der Schulenburg JMV, Wacker M. DZL BeoNet Register: Daten für Fragestellungen der Versorgungsforschung und der Gesundheitsökonomie. Pneumologie 2015. [DOI: 10.1055/s-0035-1544848] [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: 10/24/2022]
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28
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Kreuter M, Günther A, Leidl R, Hellmann A, Pfeifer M, Behr J, Wacker M, Witt S, Kauschka D, Mall M, Herth FJF, Markart P. Interimsanalyse des EXCITING-ILD Registers (Registry for Exploring Clinical and Epidemiological Characteristics of Interstitial Lung Diseases). Pneumologie 2015. [DOI: 10.1055/s-0035-1544823] [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: 10/24/2022]
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29
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Hoogendoorn M, Feenstra T, Asukai Y, Borg S, Hansen RN, Jansson SA, Samyshkin Y, Wacker M, Briggs A, Lloyd A, Sullivan SD, Rutten-van Mölken MP. Cost-Effectiveness Models for Chronic Obstructive Pulmonary Disease (COPD): Cross-Model Comparison of Hypothetical Treatment Scenarios. Value Health 2014; 17:A557-A558. [PMID: 27201829 DOI: 10.1016/j.jval.2014.08.1836] [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: 06/05/2023]
Affiliation(s)
- M Hoogendoorn
- Erasmus University Rotterdam, Rotterdam, The Netherlands
| | | | - Y Asukai
- IMS Health, Economics and Outcomes Research, London, UK
| | - S Borg
- The Swedish Institute for Health Economics, Lund, Sweden
| | - R N Hansen
- School of Pharmacy, University of Washington, Seattle, WA, USA
| | | | - Y Samyshkin
- IMS Health, Economics and Outcomes Research, London, UK
| | - M Wacker
- Helmholtz Zentrum Munchen, Neuherberg, Germany
| | - A Briggs
- University of Glasgow, Glasgow, UK
| | - A Lloyd
- IMS Health, Economics and Outcomes Research, London, UK
| | - S D Sullivan
- University of Washington, Pharmaceutical Outcomes Research and Policy Program, Seattle, WA, USA
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Lingner H, Aumann I, Gottlieb J, Welte T, Leidl R, Vogl M, der Schulenburg JMV, Kreuter M, Wacker M. The primary care routine data registry BeoNet: health services and health economic research in COPD and ELD. Pneumologie 2014. [DOI: 10.1055/s-0034-1376779] [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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31
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Wacker M, Holle R, Leidl R. Can health-economic modeling be adjusted to assess the cost-effectiveness of prognostic testing in COPD management? Pneumologie 2014. [DOI: 10.1055/s-0034-1376778] [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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32
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Kreuter M, Günther A, Leidl R, Hellmann A, Pfeifer M, Behr J, Wacker M, Witt S, Kauschka D, Mall M, Herth FJF, Markart P. EXCITING (Registry for Exploring Clinical and Epidemiological Characteristics of Interstitial Lung Diseases) – ein aufregend neues deutsches ILD Register. Pneumologie 2014. [DOI: 10.1055/s-0034-1367998] [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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33
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Hofmann B, Rödl CB, Kahnt AS, Maier TJ, Michel AA, Hoffmann M, Rau O, Awwad K, Pellowska M, Wurglics M, Wacker M, Zivković A, Fleming I, Schubert-Zsilavecz M, Stark H, Schneider G, Steinhilber D. Molecular pharmacological profile of a novel thiazolinone-based direct and selective 5-lipoxygenase inhibitor. Br J Pharmacol 2012; 165:2304-13. [PMID: 21955369 DOI: 10.1111/j.1476-5381.2011.01707.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND PURPOSE The potency of many 5-lipoxygenase (5-LOX) inhibitors depends on the cellular peroxide tone and the mechanism of 5-LOX enzyme activation. Therefore, new inhibitors that act regardless of the mode of enzyme activation need to be developed. Recently, we identified a novel class of thiazolinone-based compounds as potent 5-LOX inhibitors. Here, we present the molecular pharmacological profile of (Z)-5-(4-methoxybenzylidene)-2-(p-tolyl)-5H-thiazol-4-one, compound C06. EXPERIMENTAL APPROACH Inhibition of 5-LOX product formation was determined in intact cells [polymorphonuclear leukocytes (PMNL), rat basophilic leukaemia-1, RAW264.7] and in cell-free assays [homogenates, 100, 000×g supernatant (S100), partially purified 5-LOX] applying different stimuli for 5-LOX activation. Inhibition of peroxisome proliferator-activated receptor (PPAR), cytosolic phospholipase A(2) (cPLA(2) ), 12-LOX, 15-LOX-1 and 15-LOX-2 as well as cyclooxygenase-2 (COX-2) were measured in vitro. KEY RESULTS C06 induced non-cytotoxic, direct 5-LOX inhibition with IC(50) values about 0.66 µM (intact PMNL, PMNL homogenates) and approximately 0.3 µM (cell-free PMNL S100, partially purified 5-LOX). Action of C06 was independent of the stimulus used for 5-LOX activation and cellular redox tone and was selective for 5-LOX compared with other arachidonic acid binding proteins (PPAR, cPLA(2) , 12-LOX, 15-LOX-1, 15-LOX-2, COX-2). Experimental results suggest an allosteric binding distinct from the active site and the C2-like domain of 5-LOX. CONCLUSIONS AND IMPLICATIONS C06 was identified as a potent selective direct 5-LOX inhibitor exhibiting a novel and unique mode of action, different from other established 5-LOX inhibitors. This thiazolinone may possess potential for intervention with inflammatory and allergic diseases and certain types of cancer.
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Affiliation(s)
- B Hofmann
- Institute of Pharmaceutical Chemistry, Goethe University, Frankfurt, Germany.
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Wacker M, Witte H. Adaptive Phase Extraction: Incorporating the Gabor Transform in the Matching Pursuit Algorithm. IEEE Trans Biomed Eng 2011; 58:2844-51. [DOI: 10.1109/tbme.2011.2160636] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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35
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Witte H, Putsche P, Eiselt M, Schwab K, Wacker M, Leistritz L. Time-variant analysis of phase couplings and amplitude–frequency dependencies of and between frequency components of EEG burst patterns in full-term newborns. Clin Neurophysiol 2011; 122:253-66. [DOI: 10.1016/j.clinph.2010.07.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2009] [Revised: 06/14/2010] [Accepted: 07/02/2010] [Indexed: 10/19/2022]
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36
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Milde T, Putsche P, Schwab K, Wacker M, Eiselt M, Witte H. Dynamics of directed interactions between brain regions during interburst–burst EEG patterns in quiet sleep of full-term neonates. Neurosci Lett 2011; 488:148-53. [DOI: 10.1016/j.neulet.2010.11.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Revised: 10/15/2010] [Accepted: 11/04/2010] [Indexed: 11/15/2022]
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37
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Blaas SH, Stoelcker B, Ruhland B, Wacker M, Pfeifer M, Schulz C. Carbachol-stimulierte primäre Bronchialepithelzellen induzieren Chemokinese neutrophiler Granulozyten. Pneumologie 2007. [DOI: 10.1055/s-2007-1032299] [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: 10/21/2022]
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38
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Eder E, Wacker M, Lutz U, Nair J, Fang X, Bartsch H, Beland FA, Schlatter J, Lutz WK. Oxidative stress related DNA adducts in the liver of female rats fed with sunflower-, rapeseed-, olive- or coconut oil supplemented diets. Chem Biol Interact 2006; 159:81-9. [PMID: 16256967 DOI: 10.1016/j.cbi.2005.09.004] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2005] [Revised: 09/09/2005] [Accepted: 09/14/2005] [Indexed: 11/26/2022]
Abstract
Both animal and epidemiological studies support an effect of fatty acid composition in the diet on cancer development, in particular on colon cancer. We investigated the modulating effect of supplementation of the diet of female F344 rats with sunflower-, rapeseed-, olive-, or coconut oil on the formation of the promutagenic, exocyclic DNA adducts in the liver, an organ where major metabolism of fatty acids takes place. 1,N(6)-ethenodeoxyadenosine (etheno-dA), 3,N(4)-ethenodeoxycytidine (etheno-dC) and 1,N(2)-propandodeoxyguanosine from 4-hydroxy-2-nonenal (HNE-dGp) were determined as markers for DNA-damage derived from lipid peroxidation products and markers for oxidative stress. 8-Oxo-deoxyguanosine (8-Oxo-dG) was also measured as direct oxidative stress marker. The body weight of the rats was not influenced by the four diets containing the different vegetable oils during the 4-week feeding period. Highest adduct levels of etheno-dC (430 +/- 181 adducts/10(9) parent bases), HNE-dGp (617 +/- 96 adducts/10(9) parent bases) and 8-Oxo-dG (37,400 +/- 12,200 adducts/10(9) parent bases) were seen in rats on sunflower oil diet (highest linoleic acid content). Highest adducts levels of etheno-dA (133 +/- 113 adducts/10(9) parent bases) were found in coconut oil diet (lowest content of linoleic acid). Weakly positive correlations between linoleic acid content in the four diet groups were only observed for levels of HNE-dGp and 8-Oxo-dG. Neither the diet based on olive oil (which contains mainly oleic acid) nor the diet based on rapeseed oil (containing alpha-linolenic acid) exerted any significant protective effect against oxidative DNA damage. Our results indicate that a high linoleic acid diet may contribute to oxidative stress in the liver of female rats leading to a marginal increase in oxidative DNA-damage.
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Affiliation(s)
- E Eder
- Department of Toxicology, University of Würzburg, 97078 Würzburg, Germany.
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Götz ME, Wacker M, Luckhaus C, Wanek P, Tatschner T, Jellinger K, Leblhuber F, Ransmayr G, Riederer P, Eder E. Unaltered brain levels of 1,N2-propanodeoxyguanosine adducts of trans-4-hydroxy-2-nonenal in Alzheimer's disease. Neurosci Lett 2002; 324:49-52. [PMID: 11983292 DOI: 10.1016/s0304-3940(02)00163-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [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: 10/27/2022]
Abstract
In recent years, an important role for the pathogenesis of Alzheimer's disease (AD) has been ascribed to oxidative stress. Trans-4-hydroxy-2-nonenal, a product of lipid peroxidation, forms stable adducts with a variety of nucleophilic substituents such as thiols or amino moieties. Here, we report the quantification of 1,N2-propanodeoxyguanosine adducts of trans-4-hydroxy-2-nonenal (HNE-dGp) using the specific and very sensitive method of 32P-postlabeling of deoxyguanosine adducts derived from nuclear DNA in neuron rich areas of the hippocampus, the parietal cortex, and the cerebellum of postmortem brains from patients with AD and age matched controls. Adduct levels were highest in the hippocampus, followed by the cerebellum and parietal cortex irrespective of the disease. Neither age, postmortem delay time, gender, nor the extent of neurofibrillary deposits affected tissue adduct levels in the brain areas examined. Although distinctively present in the human brain, the level of HNE-dGp adducts appears not to be useful as a biomarker for AD.
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Affiliation(s)
- M E Götz
- Department of Toxicology, University of Würzburg, Germany.
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Wacker M, Wanek P, Eder E. Detection of 1,N2-propanodeoxyguanosine adducts of trans-4-hydroxy-2-nonenal after gavage of trans-4-hydroxy-2-nonenal or induction of lipid peroxidation with carbon tetrachloride in F344 rats. Chem Biol Interact 2001; 137:269-83. [PMID: 11566294 DOI: 10.1016/s0009-2797(01)00259-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.1] [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: 10/18/2022]
Abstract
The 1,N2-propanodeoxyguanosine adducts of trans-4-hydroxy-2-nonenal (HNE-dGp-adducts) were quantitated in tissues of rats treated with trans-4-hydroxy-2-nonenal (HNE) or carbon tetrachloride, respectively, using a 32P-postlabeling method. The method development was based on chemically synthesized HNE-1,N2-propanodeoxyguanosine adduct standard, which was characterized by NMR and mass spectra. The adducts were enriched by Nuclease P1. They were subsequently reacted with gamma-32P-ATP to give the respective 3'-5'-bisphosphates, which were two-directionally separated on PEI-cellulose-TLC and quantitated by autoradiography. The labeling efficiency for the adduct standard was 27%, and the recovery of spiked amounts of adduct standard in the enzymatical procedure was about 80%. Internal standard was used to eliminate methodological variations. The determination of the limit of quantitation in DNA from rat tissues by spiking of HNE-dGp-adduct standard revealed a sensitivity of about 20 HNE-dGp-adducts/10(9) normal nucleotides. Background levels of HNE-dGp-adducts in tissues of rats including liver, kidney, lung, colon and forestomach were found in the range of 18-158 adducts/10(9) nucleotides with relatively high adduct levels in the liver and low adduct levels in kidney, lung and colon. These background levels were statistically significantly increased by the factor of 2 in liver, lung, colon and forestomach after induction of lipid peroxidation by carbon tetrachloride. The finding that background HNE-dGp-adduct levels may be in context with different metabolic activities of the tissues and the increase of HNE-dGp-adduct levels after application of carbon tetrachloride indicate that HNE-dGp-adducts are an endogenous lesion and that they are probably formed from radical initiated lipid peroxidation.
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Affiliation(s)
- M Wacker
- Department of Toxicology, University of Würzburg, Versbacher Str. 9, D-97078, Würzburg, Germany
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Porela P, Helenius H, Pulkki K, Peltola O, Hänninen K, Pettersson K, Wacker M, Voipio-Pulkki L. Cardiac decompensation during an ischemic event weakens the predictive power of myocardial injury markers. Clin Chim Acta 2000; 302:133-44. [PMID: 11074070 DOI: 10.1016/s0009-8981(00)00362-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Our objection was to find determinants of long-term outcome in routine data collected for differential diagnosis of suspected acute myocardial infarction. Study population consisted of 263 discharged patients who were initially hospitalized for differential diagnosis of suspected acute myocardial infarction between October 1992 and January 1993. Follow-up time for all cause and cardiac mortality was 5 years. The variables studied as predictors of outcome were computerized ECG, peak creatine kinase isoenzyme MB, peak troponin I, radiographic evidence of pulmonary congestion (cardiac decompensation), treatment for hyperlipidemia, hypertension or diabetes, smoking, previous myocardial infarction, age and gender. Total mortality was 32% at 5 years, of which 77% (64/83) was of cardiac origin. Pulmonary congestion in chest X-ray was the most powerful predictor of outcome (RR=3.3, 95% CI=2.0-5.2, P<0.001). In multivariate analysis congestion (RR=3.3, CI=2.0-5.2) was the only independent predictor of 5-year total mortality in addition to age (RR=1.06, CI=1.04-1.08). These two variables together with previous myocardial infarction (RR=1.9, CI=1.2-3.1) and hyperlipidemia (RR=2. 0, CI=1.1-3.5) were independent predictors of cardiac mortality. Radiographic evidence of cardiac decompensation during hospitalization is a strong and independent predictor of long-term outcome in unselected patients with suspected AMI. The predictive power of cardiac markers is confined to patients without pulmonary congestion.
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Affiliation(s)
- P Porela
- Department of Medicine, University of Turku, FIN-20520, Turku, Finland.
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Wacker M, Schuler D, Wanek P, Eder E. Development of a (32)P-postlabeling method for the detection of 1,N(2)-propanodeoxyguanosine adducts of trans-4-hydroxy-2-nonenal in vivo. Chem Res Toxicol 2000; 13:1165-73. [PMID: 11087439 DOI: 10.1021/tx000058r] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.5] [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: 11/29/2022]
Abstract
A (32)P-postlabeling method was developed for the sensitive detection of 1,N(2)-propanodeoxyguanosine adducts of the lipid peroxidation product trans-4-hydroxy-2-nonenal in vivo. The method development was based on the chemically synthesized HNE-1, N(2)-propanodeoxyguanosine adduct standard, which was characterized by NMR and mass spectra. The adducts were enriched by nuclease P1. They were subsequently reacted with [gamma-(32)P]ATP to give the respective 3'-5'-bisphosphates, which were two-directionally separated on PEI-cellulose TLC and quantitated by autoradiography. The medium labeling efficiency for the mixture of the two pairs of diastereomers was 27%, and the recovery of spiked amounts of adduct standard in the enzymatical procedure was about 80%. The method is applicable for the separation and quantitation of HNE-dGp-propano adducts in vivo. It was applied to DNA from colon and brain tissue of untreated Fischer 344 rats and humans. The determination of the limit of quantitation in DNA from rat colon by spiking of adduct standard revealed a sensitivity of <21 adducts/10(9) nucleotides. The analytical quantitation of 4-HNE-dGp-propano adducts resulted in adduct-levels per 10(9) normal nucleotides +/- the standard deviation of 223.32 +/- 79.84 in rat colon tissue, 90.37 +/- 11.94 in rat brain tissue, 378.44 +/- 52.42 in human colon tissue, and 185.15 +/- 6.48 in human brain tissue. The results clearly demonstrate the applicability of this method for the sensitive detection of endogenously formed 1,N(2)-propanodeoxyguanosine adducts of trans-4-hydroxy-2-nonenal, a specific marker for the lipid peroxidation process.
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Affiliation(s)
- M Wacker
- Department of Toxicology, University of Würzburg, Versbacher Strasse 9, D-97078 Würzburg, Germany
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43
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Porela P, Pulkki K, Helenius H, Antila KJ, Pettersson K, Wacker M, Voipio-Pulkki LM. Prediction of short-term outcome in patients with suspected myocardial infarction. Ann Emerg Med 2000; 35:413-20. [PMID: 10783402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
STUDY OBJECTIVE Although specific cardiac injury markers have enhanced early patient classification, the ECG remains a necessary investigation in the acute phase of chest pain. Combined use of both tests could further improve the diagnostic and prognostic accuracy. METHODS We studied 311 consecutive patients who came to the emergency department of a regional referral hospital for the differential diagnosis of acute chest discomfort. The admission ECG was classified using an automated interpretation program and tested together with elevated admission creatine kinase isoform MB (CK-MB) and cardiac troponin I (TnI) concentration for prediction of final myocardial injury (44%) and in-hospital mortality (14%). RESULTS Combining the information from the admission ECG and cardiac markers, the sensitivity for becoming final myocardial injury (maximal CK-MB >/=11 microg/L) was 90% and specificity 61%. The proportion of false-negative results (10%) was independent of symptom duration. Age, positive ECG findings, and increased admission TnI levels were predictive for in-hospital mortality. CONCLUSION The commonly available biochemical and ECG criteria allow risk stratification of patients with a suspected acute ischemic event. The data analysis can easily be automated and is independent of patient delay.
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Affiliation(s)
- P Porela
- Departments of Medicine, Clinical Chemistry, Biostatistics, Clinical Physiology, and Biotechnology, University of Turku, Turku, Finland
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Abstract
From the cerebrospinal fluid of 32 patients with different neurological diseases immune complexes were isolated using protein A-Sepharose. The isolated heavy and light chains and their constituents were analyzed by two-dimensional gel electrophoresis. In addition to immunoglobulins, some proteins such as albumin, apolipoprotein A-I and a number of unknown proteins were detected in all preparations. A complex consisting of three proteins with molecular masses between 52-55 kDa reacted slightly with polyclonal antibodies to glial fibrillary acidic protein. Whether the linkage between these antigens and the Ig is due to the Fab region or the Fc region remains unknown in our study. In some immune complexes of neurological diseases such as amyotrophic lateral sclerosis, astrocytoma and multiple sclerosis, differences are easily recognizable in the gel pattern.
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Affiliation(s)
- F Wiederkehr
- Institute of Clinical Chemistry, University Hospital, Zürich, Switzerland
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Wiederkehr F, Büeler MR, Wacker M, Vonderschmitt DJ. Study of human cerebrospinal fluid proteins by size exclusion-high performance liquid chromatography and two-dimensional gel electrophoresis. Electrophoresis 1989; 10:480-8. [PMID: 2776731 DOI: 10.1002/elps.1150100706] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [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: 01/02/2023]
Abstract
Cerebrospinal fluid (CSF) proteins were separated into three main fractions by size exclusion-high performance liquid chromatography (SE-HPLC). Subsequent analysis of each fraction by two-dimensional gel electrophoresis (2-DE) facilitated the detection of trace components in CSF and additionally provided more information about the native properties of various proteins. Certain proteins are present in a polymeric form and appear in the high molecular weight SE-HPLC fraction. In the middle molecular weight SE-HPLC fraction we found a CSF-specific transthyretin-related protein by immunoblotting with polyclonal antibodies to transthyretin. Possible interpolypeptide disulfide bonds of such polymeric proteins were studied using a nonreducing 2-DE system. This procedure revealed that all apolipoprotein E monomers in CSF, which are synthesized in astrocytes, are linked by disulfide bonds. In the CSF from a patient with clinically definite multiple sclerosis (MS), novel proteins appeared in the high molecular weight SE-HPLC fraction, which are obscured by other proteins if total CSF is analyzed.
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Affiliation(s)
- F Wiederkehr
- Institute of Clinical Chemistry, University Hospital, Zürich, Switzerland
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Abstract
Intradural myolipoma is an unusual tumor. A case is described in which extramedullary and intramedullary striated muscle fibers caused gross contraction of a lipomatous tumor as well as of the spinal cord during electrical stimulation.
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47
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Baumann JM, Lauber K, Lustenberger FX, Wacker M, Zingg EJ. Crystallization conditions in urine of patients with idiopathic recurrent calcium nephrolithiasis and with hyperparathyroidism. Urol Res 1985; 13:169-74. [PMID: 4049602 DOI: 10.1007/bf00261818] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The highest degree of urinary supersaturation with respect to calcium oxalate monohydrate (COM) and brushite at which secondary nucleation and growth of small amounts of COM and hydroxyapatite (HAP) are inhibited was determined by new and simple methods. There were 39 subjects who produced 24 h-urine collections (11 idiopathic stone formers (ISF), 12 patients suffering from primary hyperparathyroidism (HPT) and 16 healthy controls (HC). These subjects had a moderate calcium and low oxalate intake. The results obtained were compared with the state of urinary saturation and with urine chemistry. The measurements of crystallization conditions with respect to COM were repeated in 26 subjects (11 ISF, 5 HPT, 10 HC) after a dietary oxalate load. In 24 h-urines of HC diluted to 2.4 1/24 h the degree of supersaturation necessary to induce crystallization of COM and HAP was 2-5 times higher than the state of urinary saturation measured under the same test conditions. ISF showed a decreased pyrophosphate concentration and a decreased inhibitory activity to HAP crystallization in their 24 h-urine. The urinary inhibitory activity towards crystallization of HAP showed a positive correlation to urinary pyrophosphate concentration. In the 24 h-urine of HPT hypercalciuria and increased saturation with respect to brushite which reached values to induce HAP crystallization were found. After a dietary oxalate load urinary supersaturation with respect to COM reached values to induce COM crystallization in ISF and HPT but not in HC.
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Scholer A, Günther M, Wacker M, Persenico J. [Glucose determination in the hemolysate, manual analysis]. Schweiz Med Wochenschr 1980; 110:491-5. [PMID: 7375900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A method for the manual determination of glucose in hemolysate is described. Both hexokinase/G6P-DH (e.g. Glucoquant) and glucose dehydrogenase can be used as reagents. The two methods correlate satisfactorily with an approved method. Correlation with an automated method: Gluc-DH: r = 0,98323; hexokinase/G6P-DH: r = 0,94172.
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Baumann JM, Wacker M. The direct measurement of inhibitory capacity to crystal growth of calcium oxalate in undiluted urine and in other inhibitor containing solutions. Urol Res 1980; 8:171-5. [PMID: 6252673 DOI: 10.1007/bf00256413] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
This paper describes a simple method to measure the capacity of undiluted urine and of other inhibitor containing solutions (PPi and EHDP) to protect a given mass of calcium oxalate crystals from growth. The method has also been used to determine relative urinary saturation with respect to calcium oxalate. It is based on titration with oxalate and measures the critical changes of concentration necessary to reach saturation or to induce crystal growth. From these changes inhibitory capacity as well as the level of urinary saturation can be calculated in terms of differences of concentration products. The use of the methods at present available to measure urinary oxalate are thereby avoided. In order to compare the results from different urines without the need for cumbersome calculations of activity products we have introduced a saturation-inhibition ratio.
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Baumann JM, Wacker M. Experiences with the measurement of inhibitory activity of urine and crystallisation inhibitors by different techniques. Urol Res 1979; 7:183-8. [PMID: 228455 DOI: 10.1007/bf00257204] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The effect of urine, pyrophosphate (PPi), citrate and diphosphonate on the formation, the growth rate or the aggregation of calcium oxalate or calcium phosphate crystals was measured by 4 different methods. The degree of supersaturation and the area of crystal surface present in the test systems were found to be limiting factors for the action of inhibitors. Citrate and PPi proved to be important urinary inhibitors of the growth of calcium oxalate crystals. Comparison between stone formers and healthy controls revealed a significant lack of PPi in urine of male patients. The inhibitory effect of PPi in urine of healthy people was enhanced by unknown factors. This enhancement could not be found in about 60% of the stone patients. Problems relating to measurement and clinical importance of inhibitors are discussed.
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