1
|
Bauer J, Vlcek J, Pauly V, Hesse N, Xia R, Mo L, Chivukula AS, Villgrater H, Dressler M, Hildebrand B, Wolf E, Rizas KD, Bauer A, Kääb S, Tomsits P, Schüttler D, Clauss S. Biomarker Periodic Repolarization Dynamics Indicates Enhanced Risk for Arrhythmias and Sudden Cardiac Death in Myocardial Infarction in Pigs. J Am Heart Assoc 2024; 13:e032405. [PMID: 38639363 DOI: 10.1161/jaha.123.032405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 03/08/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Periodic repolarization dynamics (PRD) is an electrocardiographic biomarker that captures repolarization instability in the low frequency spectrum and is believed to estimate the sympathetic effect on the ventricular myocardium. High PRD indicates an increased risk for postischemic sudden cardiac death (SCD). However, a direct link between PRD and proarrhythmogenic autonomic remodeling has not yet been shown. METHODS AND RESULTS We investigated autonomic remodeling in pigs with myocardial infarction (MI)-related ischemic heart failure induced by balloon occlusion of the left anterior descending artery (n=17) compared with pigs without MI (n=11). Thirty days after MI, pigs demonstrated enhanced sympathetic innervation in the infarct area, border zone, and remote left ventricle paralleled by altered expression of autonomic marker genes/proteins. PRD was enhanced 30 days after MI compared with baseline (pre-MI versus post-MI: 1.75±0.30 deg2 versus 3.29±0.79 deg2, P<0.05) reflecting pronounced autonomic alterations on the level of the ventricular myocardium. Pigs with MI-related ventricular fibrillation and SCD had significantly higher pre-MI PRD than pigs without tachyarrhythmias, suggesting a potential role for PRD as a predictive biomarker for ischemia-related arrhythmias (no ventricular fibrillation versus ventricular fibrillation: 1.50±0.39 deg2 versus 3.18±0.53 deg2 [P<0.05]; no SCD versus SCD: 1.67±0.32 deg2 versus 3.91±0.63 deg2 [P<0.01]). CONCLUSIONS We demonstrate that ischemic heart failure leads to significant proarrhythmogenic autonomic remodeling. The concomitant elevation of PRD levels in pigs with ischemic heart failure and pigs with MI-related ventricular fibrillation/SCD suggests PRD as a biomarker for autonomic remodeling and as a potential predictive biomarker for ventricular arrhythmias/survival in the context of MI.
Collapse
Affiliation(s)
- Julia Bauer
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
| | - Julia Vlcek
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
| | - Valerie Pauly
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
| | - Nora Hesse
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
| | - Ruibing Xia
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
| | - Li Mo
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
| | - Aparna Sharma Chivukula
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
| | - Hannes Villgrater
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
| | - Marie Dressler
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
| | - Bianca Hildebrand
- Department of Medicine I University Hospital, LMU Munich Munich Germany
| | - Eckhard Wolf
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich Munich Germany
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU), LMU Munich Munich Germany
| | - Konstantinos D Rizas
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
| | - Axel Bauer
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- University Hospital for Internal Medicine III Medical University of Innsbruck Innsbruck Austria
| | - Stefan Kääb
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU), LMU Munich Munich Germany
| | - Philipp Tomsits
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
| | - Dominik Schüttler
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
| | - Sebastian Clauss
- Department of Medicine I University Hospital, LMU Munich Munich Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance Munich Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine University Hospital, LMU Munich Munich Germany
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU), LMU Munich Munich Germany
| |
Collapse
|
2
|
Bauer J, Clark H, Coenen M, Klein C, Rehfuess EA, Ruther C, Voss S, Voigt-Blaurock V, Jung-Sievers C. [Participation in children's hospitals: approaches to participatory formats for paediatric patients]. Gesundheitswesen 2024. [PMID: 38653470 DOI: 10.1055/a-2270-2840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Based on the UN Convention on the Rights of the Child, children and young people have the right to participate in all matters and decisions that affect them. This applies in particular when they are patients in a children's hospital. In the international context, established formats for the participation of young patients regarding health issues already exist, for example "Children's Councils" or "Young Person's Advisory Groups". In Germany, such approaches are still mostly lacking. It thus remains important to develop suitable formats that enable meaningful and effective participation of young patients in the health system. These formats must be chosen in such a way that they can realistically be implemented in clinical settings as well as in pediatric research, and that they can be sustained in the long term. In order to strengthen the consideration of children's rights in the health system, the advancement of such participatory formats as well as their sustainable implementation and evaluation are desirable.
Collapse
Affiliation(s)
- Julia Bauer
- Lehrstuhl für Public Health und Versorgungsforschung, Ludwig-Maximilians-Universität München, Medizinische Fakultät, Institut für medizinische Informationsverarbeitung, Biometrie und Epidemiologie - IBE, München, Germany
- Dr. von Haunersches Kinderspital, Klinikum der Ludwig-Maximilians-Universität München, München, Germany
- Pettenkofer School Public Health, Münchrn, Germany
| | - Holly Clark
- Dr. von Haunersches Kinderspital, Klinikum der Ludwig-Maximilians-Universität München, München, Germany
| | - Michaela Coenen
- Lehrstuhl für Public Health und Versorgungsforschung, Ludwig-Maximilians-Universität München, Medizinische Fakultät, Institut für medizinische Informationsverarbeitung, Biometrie und Epidemiologie - IBE, München, Germany
- Pettenkofer School Public Health, Münchrn, Germany
| | - Christoph Klein
- Dr. von Haunersches Kinderspital, Klinikum der Ludwig-Maximilians-Universität München, München, Germany
| | - Eva Annette Rehfuess
- Lehrstuhl für Public Health und Versorgungsforschung, Ludwig-Maximilians-Universität München, Medizinische Fakultät, Institut für medizinische Informationsverarbeitung, Biometrie und Epidemiologie - IBE, München, Germany
- Pettenkofer School Public Health, Münchrn, Germany
| | - Carolin Ruther
- Dr. von Haunersches Kinderspital, Klinikum der Ludwig-Maximilians-Universität München, München, Germany
| | - Stephan Voss
- Lehrstuhl für Public Health und Versorgungsforschung, Ludwig-Maximilians-Universität München, Medizinische Fakultät, Institut für medizinische Informationsverarbeitung, Biometrie und Epidemiologie - IBE, München, Germany
- Pettenkofer School Public Health, Münchrn, Germany
| | - Varinka Voigt-Blaurock
- Dr. von Haunersches Kinderspital, Klinikum der Ludwig-Maximilians-Universität München, München, Germany
| | - Caroline Jung-Sievers
- Lehrstuhl für Public Health und Versorgungsforschung, Ludwig-Maximilians-Universität München, Medizinische Fakultät, Institut für medizinische Informationsverarbeitung, Biometrie und Epidemiologie - IBE, München, Germany
| |
Collapse
|
3
|
Zhang Z, Vlcek J, Pauly V, Hesse N, Bauer J, Chataut KR, Maderspacher F, Volz LS, Buchberger K, Xia R, Hildebrand B, Kääb S, Schüttler D, Tomsits P, Clauss S. Atrial fibrosis heterogeneity is a risk for atrial fibrillation in pigs with ischaemic heart failure. Eur J Clin Invest 2024; 54:e14137. [PMID: 38012826 DOI: 10.1111/eci.14137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/02/2023] [Accepted: 11/18/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Atrial fibrillation (AF) is the most common arrhythmia and is associated with considerable morbidity and mortality. Ischaemic heart failure (IHF) remains one of the most common causes of AF in clinical practice. However, ischaemia-mediated mechanisms leading to AF are still incompletely understood, and thus, current treatment approaches are limited. To improve our understanding of the pathophysiology, we studied a porcine IHF model. METHODS In pigs, IHF was induced by balloon occlusion of the left anterior descending artery for 90 min. After 30 days of reperfusion, invasive haemodynamic measurements and electrophysiological studies were performed. Masson trichrome and immunofluorescence staining were conducted to assess interstitial fibrosis and myofibroblast activation in different heart regions. RESULTS After 30 days of reperfusion, heart failure with significantly reduced ejection fraction (left anterior obique 30°, 34.78 ± 3.29% [IHF] vs. 62.03 ± 2.36% [control], p < .001; anterior-posterior 0°, 29.16 ± 3.61% vs. 59.54 ± 1.09%, p < .01) was observed. These pigs showed a significantly higher susceptibility to AF (33.90% [IHF] vs. 12.98% [control], p < .05). Histological assessment revealed aggravated fibrosis in atrial appendages but not in atrial free walls in IHF pigs (11.13 ± 1.44% vs. 5.99 ± .86%, p < .01 [LAA], 8.28 ± .56% vs. 6.01 ± .35%, p < .01 [RAA]), which was paralleled by enhanced myofibroblast activation (12.09 ± .65% vs. 9.00 ± .94%, p < .05 [LAA], 14.37 ± .60% vs. 10.30 ± 1.41%, p < .05 [RAA]). Correlation analysis indicated that not fibrosis per se but its cross-regional heterogeneous distribution across the left atrium was associated with AF susceptibility (r = .6344, p < .01). CONCLUSION Our results suggest that left atrial cross-regional fibrosis difference rather than overall fibrosis level is associated with IHF-related AF susceptibility, presumably by establishing local conduction disturbances and heterogeneity.
Collapse
Affiliation(s)
- Zhihao Zhang
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Julia Vlcek
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Valerie Pauly
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Nora Hesse
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Julia Bauer
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Kavi Raj Chataut
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Florian Maderspacher
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Lina Sophie Volz
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Katharina Buchberger
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Ruibing Xia
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Bianca Hildebrand
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
| | - Stefan Kääb
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU), LMU Munich, Munich, Germany
| | - Dominik Schüttler
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Philipp Tomsits
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - Sebastian Clauss
- Department of Medicine I, Campus Grosshadern, University Hospital Munich, Ludwig-Maximilians University (LMU), Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU), LMU Munich, Munich, Germany
| |
Collapse
|
4
|
Loeser J, Bauer J, Janßen K, Rockenbach K, Wachter A. A transient in planta editing assay identifies specific binding of the splicing regulator PTB as a prerequisite for cassette exon inclusion. Plant Mol Biol 2024; 114:22. [PMID: 38443687 PMCID: PMC10914923 DOI: 10.1007/s11103-024-01414-3] [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] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/31/2023] [Indexed: 03/07/2024]
Abstract
The dynamic interaction of RNA-binding proteins (RBPs) with their target RNAs contributes to the diversity of ribonucleoprotein (RNP) complexes that are involved in a myriad of biological processes. Identifying the RNP components at high resolution and defining their interactions are key to understanding their regulation and function. Expressing fusions between an RBP of interest and an RNA editing enzyme can result in nucleobase changes in target RNAs, representing a recent addition to experimental approaches for profiling RBP/RNA interactions. Here, we have used the MS2 protein/RNA interaction to test four RNA editing proteins for their suitability to detect target RNAs of RBPs in planta. We have established a transient test system for fast and simple quantification of editing events and identified the hyperactive version of the catalytic domain of an adenosine deaminase (hADARcd) as the most suitable editing enzyme. Examining fusions between homologs of polypyrimidine tract binding proteins (PTBs) from Arabidopsis thaliana and hADARcd allowed determining target RNAs with high sensitivity and specificity. Moreover, almost complete editing of a splicing intermediate provided insight into the order of splicing reactions and PTB dependency of this particular splicing event. Addition of sequences for nuclear localisation of the fusion protein increased the editing efficiency, highlighting this approach's potential to identify RBP targets in a compartment-specific manner. Our studies have established the editing-based analysis of interactions between RBPs and their RNA targets in a fast and straightforward assay, offering a new system to study the intricate composition and functions of plant RNPs in vivo.
Collapse
Affiliation(s)
- Jorinde Loeser
- Institute for Molecular Physiology (imP), University of Mainz, Hanns-Dieter-Hüsch-Weg 17, 55128, Mainz, Germany
| | - Julia Bauer
- Institute for Molecular Physiology (imP), University of Mainz, Hanns-Dieter-Hüsch-Weg 17, 55128, Mainz, Germany
| | - Kim Janßen
- Institute for Molecular Physiology (imP), University of Mainz, Hanns-Dieter-Hüsch-Weg 17, 55128, Mainz, Germany
| | - Kevin Rockenbach
- Institute for Molecular Physiology (imP), University of Mainz, Hanns-Dieter-Hüsch-Weg 17, 55128, Mainz, Germany
| | - Andreas Wachter
- Institute for Molecular Physiology (imP), University of Mainz, Hanns-Dieter-Hüsch-Weg 17, 55128, Mainz, Germany.
| |
Collapse
|
5
|
Voss S, Bauer J, Jung-Sievers C, Moore G, Rehfuess E, Rhein VZ, Coenen M. Process evaluation of an integrated community-based intervention for promoting health equity in children in a new residential development area. Arch Public Health 2024; 82:19. [PMID: 38317198 PMCID: PMC10845767 DOI: 10.1186/s13690-024-01246-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 01/27/2024] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND Reducing health inequities for children from a disadvantaged background is an important task in public health. While intersectoral partnerships are a promising way to achieve this, few studies have examined the factors influencing the success of these interventions. In this study, we conducted a process evaluation of the integrated community-based intervention Präventionskette Freiham that the city of Munich, Germany, has implemented in a new residential development area. The aim was to investigate the implementation process as well as barriers and facilitators. METHODS Following a mixed methods approach, we collected data from different core groups making up Präventionskette Freiham from April 2020 to August 2022, exploring their perspective on the implementation process. We conducted repeated qualitative interviews with the network coordinators and eleven local professionals from institutions engaged with or relevant for the intervention. We also undertook a focus group with four members of the advisory group representing the three municipal departments guiding the intervention. Ego-centered network maps were drawn by the network coordinators to chart the development of the network. Subsequently, we also conducted an online survey with local network members. RESULTS At the early stage of the implementation process, the intervention was able to integrate actors from different sectors, serving as a platform for mutual exchange. However, the network produced limited output. According to the interviews, this may be mainly attributable to the early development status of the area. We identified seven topics that may act as facilitators or barriers to implementation of Präventionskette Freiham: (1) availability of resources, (2) political and administrative support, (3) the network coordinators, (4) network-internal processes, (5) trans-institutional cooperation, (6) perceived benefits of engagement, and (7) the output of the network. CONCLUSIONS The early development status of the area was a challenge for the intervention. This emphasizes the need to carefully consider context when planning and implementing integrated community-based public health interventions in new residential development areas.
Collapse
Affiliation(s)
- Stephan Voss
- Chair of Public Health and Health Services Research, Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, LMU Munich, Elisabeth-Winterhalter-Weg 6, Munich, 81377, Germany.
- Pettenkofer School of Public Health, Munich, Germany.
| | - Julia Bauer
- Chair of Public Health and Health Services Research, Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, LMU Munich, Elisabeth-Winterhalter-Weg 6, Munich, 81377, Germany
- Pettenkofer School of Public Health, Munich, Germany
| | - Caroline Jung-Sievers
- Chair of Public Health and Health Services Research, Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, LMU Munich, Elisabeth-Winterhalter-Weg 6, Munich, 81377, Germany
- Pettenkofer School of Public Health, Munich, Germany
| | - Graham Moore
- Centre for Development, Evaluation, Complexity and Implementation in Public Health Improvement (DECIPHer), School of Social Sciences, Cardiff University, Cardiff, UK
- Wolfson Centre for Young People's Mental Health, Cardiff University, Cardiff, UK
| | - Eva Rehfuess
- Chair of Public Health and Health Services Research, Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, LMU Munich, Elisabeth-Winterhalter-Weg 6, Munich, 81377, Germany
- Pettenkofer School of Public Health, Munich, Germany
| | - Valerie Zu Rhein
- Chair of Public Health and Health Services Research, Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, LMU Munich, Elisabeth-Winterhalter-Weg 6, Munich, 81377, Germany
- Pettenkofer School of Public Health, Munich, Germany
| | - Michaela Coenen
- Chair of Public Health and Health Services Research, Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, LMU Munich, Elisabeth-Winterhalter-Weg 6, Munich, 81377, Germany
- Pettenkofer School of Public Health, Munich, Germany
| |
Collapse
|
6
|
Chang JHM, Xue Z, Bauer J, Wehle B, Hendrix DA, Catalano T, Hurowitz JA, Nekvasil H, Demple B. Artificial Space Weathering to Mimic Solar Wind Enhances the Toxicity of Lunar Dust Simulants in Human Lung Cells. Geohealth 2024; 8:e2023GH000840. [PMID: 38312735 PMCID: PMC10835080 DOI: 10.1029/2023gh000840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 12/01/2023] [Accepted: 12/07/2023] [Indexed: 02/06/2024]
Abstract
During NASA's Apollo missions, inhalation of dust particles from lunar regolith was identified as a potential occupational hazard for astronauts. These fine particles adhered tightly to spacesuits and were unavoidably brought into the living areas of the spacecraft. Apollo astronauts reported that exposure to the dust caused intense respiratory and ocular irritation. This problem is a potential challenge for the Artemis Program, which aims to return humans to the Moon for extended stays in this decade. Since lunar dust is "weathered" by space radiation, solar wind, and the incessant bombardment of micrometeorites, we investigated whether treatment of lunar regolith simulants to mimic space weathering enhanced their toxicity. Two such simulants were employed in this research, Lunar Mare Simulant-1 (LMS-1), and Lunar Highlands Simulant-1 (LHS-1), which were added to cultures of human lung epithelial cells (A549) to simulate lung exposure to the dusts. In addition to pulverization, previously shown to increase dust toxicity sharply, the simulants were exposed to hydrogen gas at high temperature as a proxy for solar wind exposure. This treatment further increased the toxicity of both simulants, as measured by the disruption of mitochondrial function, and damage to DNA both in mitochondria and in the nucleus. By testing the effects of supplementing the cells with an antioxidant (N-acetylcysteine), we showed that a substantial component of this toxicity arises from free radicals. It remains to be determined to what extent the radicals arise from the dust itself, as opposed to their active generation by inflammatory processes in the treated cells.
Collapse
Affiliation(s)
- J H M Chang
- Department of Pharmacological Sciences Renaissance School of Medicine Stony Brook University Stony Brook NY USA
| | - Z Xue
- Department of Pharmacological Sciences Renaissance School of Medicine Stony Brook University Stony Brook NY USA
| | - J Bauer
- Department of Pharmacological Sciences Renaissance School of Medicine Stony Brook University Stony Brook NY USA
| | - B Wehle
- Department of Pharmacological Sciences Renaissance School of Medicine Stony Brook University Stony Brook NY USA
| | - D A Hendrix
- Department of Geosciences Stony Brook University Stony Brook NY USA
- National High Magnetic Field Laboratory Florida State University Tallahassee FL USA
| | - T Catalano
- Department of Geosciences Stony Brook University Stony Brook NY USA
| | - J A Hurowitz
- Department of Geosciences Stony Brook University Stony Brook NY USA
| | - H Nekvasil
- Department of Geosciences Stony Brook University Stony Brook NY USA
| | - B Demple
- Departments of Pharmacological Sciences and of Radiation Oncology Renaissance School of Medicine Stony Brook University Stony Brook NY USA
| |
Collapse
|
7
|
Robert M, Coenen M, Bauer J, Voss S, Jung-Sievers C. Consented indicators for the evaluation of integrated strategies of community health promotion targeting children and adolescents: results of an eDelphi. BMC Public Health 2024; 24:252. [PMID: 38254121 PMCID: PMC10802006 DOI: 10.1186/s12889-023-17370-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 11/28/2023] [Indexed: 01/24/2024] Open
Abstract
BACKGROUND To date, there is no consensus on indicators for the evaluation of integrated community-based interventions for health promotion and prevention targeting children and adolescents. This study aims at consenting on a scoped set of indicators to evaluate integrated community-based interventions. METHODS Out of 738 indicators derived from a literature search, we preselected 94 indicators allotted to 20 domains based on an internal quality appraisal and consensus process and conducted an eDelphi procedure to assess their relevance in view of experts. Experts were recruited in the field of public health, health sciences and communal health promotion in practice and were invited as participants in this eDelphi. During the eDelphi, 47 experts rated the relevance of 94 indicators in two rounds. Consensus was defined as agreement of 75% (or above). RESULTS After round 1, 27 indicators among 11 consented subdomains reached a consensus on relevance. After round 2, a total of 36 indicators reached consensus on relevance in 9 subdomains (such as socioeconomic factors, health education, nutrition and physical activity, oral health, overall health status, specific health conditions, drug related behavior, exposure to drugs and violence, family factors). CONCLUSIONS These identified indicators may provide a basis for evaluation concepts of integrated community-based interventions for children and adolescents to inform stakeholders about intervention impacts.
Collapse
Affiliation(s)
- Myriam Robert
- Chair of Public Health and Health Services Research, Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, Ludwig Maximilian University (LMU) of Munich, Munich, Germany
- Pettenkofer School of Public Health, Munich, Germany
| | - Michaela Coenen
- Chair of Public Health and Health Services Research, Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, Ludwig Maximilian University (LMU) of Munich, Munich, Germany
- Pettenkofer School of Public Health, Munich, Germany
| | - Julia Bauer
- Chair of Public Health and Health Services Research, Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, Ludwig Maximilian University (LMU) of Munich, Munich, Germany
- Pettenkofer School of Public Health, Munich, Germany
| | - Stephan Voss
- Chair of Public Health and Health Services Research, Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, Ludwig Maximilian University (LMU) of Munich, Munich, Germany
- Pettenkofer School of Public Health, Munich, Germany
| | - Caroline Jung-Sievers
- Chair of Public Health and Health Services Research, Institute for Medical Information Processing, Biometry, and Epidemiology (IBE), Faculty of Medicine, Ludwig Maximilian University (LMU) of Munich, Munich, Germany.
- Pettenkofer School of Public Health, Munich, Germany.
| |
Collapse
|
8
|
Fínek J, Vočka M, Bauer J, Kubala E, Zycháčková K, Šedivá M, Gharibyar M, Kocáková I, Čmuchařová E, Vaňková M. Feasibility of implementation of the early tumor shrinkage as a potential predictive marker to daily clinical practice in patients with RAS wild type metastatic colorectal cancer, treated with cetuximab - a non-interventional observational study. Klin Onkol 2024; 38:110-117. [PMID: 38697819 DOI: 10.48095/ccko2024110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
BACKGROUND With the aim to show the feasibility of early tumor shrinkage (ETS) concept implementation into daily clinical practice in the Czech Republic, a non-interventional, multicentric, single arm, prospective study in real world set-up was performed. MATERIAL AND METHODS The study objectives were to explore the time interval from the treatment starting date to the date of the first radiographic control (TFRC) and evaluate the proportion of patients who achieved ≥ 20% tumor regression within the first 8 weeks of first-line therapy, in the real-world settings. RESULTS The medians of TFRC in all individual participating centers were > 12 weeks (range 14.0-36.4 weeks). TFRC ≤ 8 weeks was reported for only 3% of patients in the cohort with first-line therapy, and there were only 3 patients (1%) who achieved tumor regression of ≥ 20% by day 60 (8.6 weeks). CONCLUSION These findings indicate that the basic time parameter of ETS could not realistically be employed in routine oncology care of patients with metastatic colorectal cancer (mCRC) in the Czech Republic, unless there would be a strict request to perform TRFC by week 8 since the initiation of the therapy. In addition, the frequency of objective tumor response to first-line therapy with cetuximab + chemotherapy was evaluated. Based on the relative regression in the sum of diameters of measurable metastatic lesions, unconfirmed partial responses were achieved in 42.4 % and unconfirmed complete response in 8.6% of patients, altogether corresponding to the overall response rate of 51% with first-line therapy. The frequency of responses was higher among patients with left than right sided primary tumors. It seems that the regimen of cetuximab/FOLFOX might be more active in frontline therapy of right sided RAS wild type mCRC than cetuximab/FOLFIRI.
Collapse
|
9
|
Bauer J, Adamek M, Miebach AC, Gährken J, Wessels S, Tetens J, Dietz C, Sünder A, Matras M, Stachnik M, Reichert M, Steinhagen D. In vitro modelling of the influence of alternative feeds (Hermetia illucens, Arthrospira platensis) on the resistance of different rainbow trout populations (Oncorhynchus mykiss) against the viral haemorrhagic septicaemia virus and Yersinia ruckeri. J Fish Dis 2023; 46:1269-1283. [PMID: 37592444 DOI: 10.1111/jfd.13846] [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] [Received: 06/13/2023] [Revised: 07/24/2023] [Accepted: 07/28/2023] [Indexed: 08/19/2023]
Abstract
Replacing fishmeal, a finite resource with high market demand, in the diet of carnivorous rainbow trout with proteins from alternative sources may be a challenge for these fish. Therefore, this study investigated whether replacing fishmeal with protein derived from Hermetia illucens or Arthrospira platensis could promote disease susceptibility in local trout populations with different growth performance. This was assessed in vitro by measuring susceptibility to infection with the viral haemorrhagic septicaemia virus (VHSV) or the bacterium Yersinia ruckeri. Analysis of fin tissue explants and primary cell cultures from scales from the three trout populations infected in vitro with VHSV and gill explants infected with Y. ruckeri showed no significant differences in virus replication or bacterial counts. Evaluation of the virucidal or bactericidal effect of skin mucus showed a significant reduction in viral load and bacterial count for all samples with mucus addition, but no significant difference was observed between the experimental groups. This study documents no apparent impairment of innate immune mechanisms in the skin and gills of trout after feeding a diet replacing fishmeal with Arthrospira or Hermetia proteins. This underlines the potential of these alternative protein sources for the further development of sustainable trout aquaculture.
Collapse
Affiliation(s)
- Julia Bauer
- Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Mikolaj Adamek
- Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Anne-Carina Miebach
- Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Jakob Gährken
- Aquaculture and Water Ecology, University of Goettingen, Goettingen, Germany
| | - Stephan Wessels
- Aquaculture and Water Ecology, University of Goettingen, Goettingen, Germany
| | - Jens Tetens
- Aquaculture and Water Ecology, University of Goettingen, Goettingen, Germany
| | - Carsten Dietz
- Department of Animal Sciences, Animal Nutrition Physiology, University of Goettingen, Goettingen, Germany
| | - Angela Sünder
- Department of Animal Sciences, Animal Nutrition Physiology, University of Goettingen, Goettingen, Germany
| | - Marek Matras
- National Veterinary Research Institute, Puławy, Poland
| | | | | | - Dieter Steinhagen
- Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany
| |
Collapse
|
10
|
Ball L, Bauer J, Krautwurst D. Heterodimerization of Chemoreceptors TAS1R3 and mGlu 2 in Human Blood Leukocytes. Int J Mol Sci 2023; 24:12942. [PMID: 37629122 PMCID: PMC10454557 DOI: 10.3390/ijms241612942] [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: 06/15/2023] [Revised: 08/08/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
The expression of canonical chemosensory receptors of the tongue, such as the heteromeric sweet taste (TAS1R2/TAS1R3) and umami taste (TAS1R1/TAS1R3) receptors, has been demonstrated in many extra-oral cells and tissues. Gene expression studies have revealed transcripts for all TAS1 and metabotropic glutamate (mGlu) receptors in different types of immune cells, where they are involved, for example, in the chemotaxis of human neutrophils and the protection of T cells from activation-induced cell death. Like other class-C G protein-coupling receptors (GPCRs), TAS1Rs and mGlu receptors form heteromers within their families. Since mGlu receptors and TAS1R1/TAS1R3 share the same ligand, monosodium glutamate (MSG), we hypothesized their hitherto unknown heteromerization across receptor families in leukocytes. Here we show, by means of immunocytochemistry and co-IP/Western analysis, that across class-C GPCR families, mGlu2 and TAS1R3 co-localize and heterodimerize in blood leukocytes. Expressing the recombinant receptors in HEK-293 cells, we validated their heterodimerization by bioluminescence resonance energy transfer. We demonstrate MSG-induced, mGlu2/TAS1R3 heteromer-dependent gain-of-function and pertussis toxin-sensitive signaling in luminescence assays. Notably, we show that mGlu2/TAS1R3 is necessary and sufficient for MSG-induced facilitation of N-formyl-methionyl-leucyl-phenylalanine-stimulated IL-8 secretion in neutrophils, using receptor-specific antagonists. In summary, our results demonstrate mGlu2/TAS1R3 heterodimerization in leukocytes, suggesting cellular function-tailored chemoreceptor combinations to modulate cellular immune responses.
Collapse
Affiliation(s)
- Lena Ball
- TUM School of Life Sciences, Technical University of Munich, Alte Akademie 8a, 85354 Freising, Germany;
- Leibniz-Institute for Food Systems Biology at the Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany;
| | - Julia Bauer
- Leibniz-Institute for Food Systems Biology at the Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany;
| | - Dietmar Krautwurst
- Leibniz-Institute for Food Systems Biology at the Technical University of Munich, Lise-Meitner-Str. 34, 85354 Freising, Germany;
| |
Collapse
|
11
|
Bauer J, Crook C, Baldacchini T. A sinterless, low-temperature route to 3D print nanoscale optical-grade glass. Science 2023; 380:960-966. [PMID: 37262172 DOI: 10.1126/science.abq3037] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 04/12/2023] [Indexed: 06/03/2023]
Abstract
Three-dimensional (3D) printing of silica glass is dominated by techniques that rely on traditional particle sintering. At the nanoscale, this limits their adoption within microsystem technology, which prevents technological breakthroughs. We introduce the sinterless, two-photon polymerization 3D printing of free-form fused silica nanostructures from a polyhedral oligomeric silsesquioxane (POSS) resin. Contrary to particle-loaded sacrificial binders, our POSS resin itself constitutes a continuous silicon-oxygen molecular network that forms transparent fused silica at only 650°C. This temperature is 500°C lower than the sintering temperatures for fusing discrete silica particles to a continuum, which brings silica 3D printing below the melting points of essential microsystem materials. Simultaneously, we achieve a fourfold resolution enhancement, which enables visible light nanophotonics. By demonstrating excellent optical quality, mechanical resilience, ease of processing, and coverable size scale, our material sets a benchmark for micro- and nano-3D printing of inorganic solids.
Collapse
Affiliation(s)
- J Bauer
- Institute of Nanotechnology, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
- Materials Science and Engineering Department, University of California, Irvine, CA 94550, USA
| | - C Crook
- Materials Science and Engineering Department, University of California, Irvine, CA 94550, USA
| | | |
Collapse
|
12
|
Haist M, Stege H, Kuske M, Bauer J, Klumpp A, Grabbe S, Bros M. Combination of immune-checkpoint inhibitors and targeted therapies for melanoma therapy: The more, the better? Cancer Metastasis Rev 2023; 42:481-505. [PMID: 37022618 PMCID: PMC10348973 DOI: 10.1007/s10555-023-10097-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/27/2023] [Indexed: 04/07/2023]
Abstract
The approval of immune-checkpoint inhibitors (CPI) and mitogen activated protein kinase inhibitors (MAPKi) in recent years significantly improved the treatment management and survival of patients with advanced malignant melanoma. CPI aim to counter-act receptor-mediated inhibitory effects of tumor cells and immunomodulatory cell types on effector T cells, whereas MAPKi are intended to inhibit tumor cell survival. In agreement with these complementary modes of action preclinical data indicated that the combined application of CPI and MAPKi or their optimal sequencing might provide additional clinical benefit. In this review the rationale and preclinical evidence that support the combined application of MAPKi and CPI either in concurrent or consecutive regimens are presented. Further, we will discuss the results from clinical trials investigating the sequential or combined application of MAPKi and CPI for advanced melanoma patients and their implications for clinical practice. Finally, we outline mechanisms of MAPKi and CPI cross-resistance which limit the efficacy of currently available treatments, as well as combination regimens.
Collapse
Affiliation(s)
- Maximilian Haist
- Department of Dermatology, University Medical Center Mainz, Langenbeckstraße 1, 55131, Mainz, Germany.
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
- Department of Microbiology & Immunology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
| | - Henner Stege
- Department of Dermatology, University Medical Center Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Michael Kuske
- Department of Dermatology, University Medical Center Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Julia Bauer
- Department of Dermatology, University Medical Center Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Annika Klumpp
- Department of Dermatology, University Medical Center Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Stephan Grabbe
- Department of Dermatology, University Medical Center Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Matthias Bros
- Department of Dermatology, University Medical Center Mainz, Langenbeckstraße 1, 55131, Mainz, Germany
| |
Collapse
|
13
|
Bauer J, Steiger BK, Kegel LC, Eicher M, König K, Baumann-Vogel H, Jokeit H. A comparative study of social cognition in epilepsy, brain injury, and Parkinson's disease. Psych J 2023. [PMID: 37127428 DOI: 10.1002/pchj.650] [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: 06/01/2022] [Accepted: 03/21/2023] [Indexed: 05/03/2023]
Abstract
The brain regions involved in social cognition and the regulation of social behavior form a widely distributed cortico-subcortical network. Therefore, many neurological disorders could affect social cognition and behavior. A persistent lack of valid tests and a rigid neuropsychological focus on language, attention, executive function, and memory have contributed to a long-standing neglect of social cognition in clinical diagnostics, although the DSM-5 recognizes it as one of the six core dimensions in neurocognitive disorders. To assess for the first time the diagnostic yield of a comprehensive social cognition battery (Networks of Emotion Processing [NEmo]), we administered several emotion recognition and theory of mind tests to three incidental clinical samples with different neurological conditions: temporal lobe epilepsy (n = 30), acquired brain injury (n = 24), Parkinson's disease (n = 19), and a healthy control group (n = 67). A multivariate analysis of covariance was performed to test the effect of group on subscales of the NEmo test battery, controlling for age and performance IQ. The results showed statistically significant differences between clinical groups and healthy controls. No differences were found for gender and lateralization of the predominant lesion side. In our incidental samples, 86% of individuals with temporal lobe epilepsy, 57% of individuals with acquired brain lesion, and 14% of individuals with Parkinson's disease underperformed on tests of social cognition compared with controls. These findings suggest a differential impact of neurological disorders on the risk of impaired social cognition and highlight the need to consider social cognition in diagnostics, counselling, therapy, and rehabilitation.
Collapse
Affiliation(s)
- Julia Bauer
- Department of Neuropsychology, Swiss Epilepsy Center, Zurich, Switzerland
- Psychological Institute, University of Zurich, Zurich, Switzerland
| | | | | | - Marcel Eicher
- Department of Neuropsychology, Swiss Epilepsy Center, Zurich, Switzerland
| | - Kristina König
- Department of Neuropsychology, Swiss Epilepsy Center, Zurich, Switzerland
| | | | - Hennric Jokeit
- Department of Neuropsychology, Swiss Epilepsy Center, Zurich, Switzerland
- Psychological Institute, University of Zurich, Zurich, Switzerland
- Neuroscience Center Zurich, Zurich, Switzerland
| |
Collapse
|
14
|
Pauly V, Vlcek J, Zhang Z, Hesse N, Xia R, Bauer J, Loy S, Schneider S, Renner S, Wolf E, Kääb S, Schüttler D, Tomsits P, Clauss S. Effects of Sex on the Susceptibility for Atrial Fibrillation in Pigs with Ischemic Heart Failure. Cells 2023; 12:cells12070973. [PMID: 37048048 PMCID: PMC10093477 DOI: 10.3390/cells12070973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/16/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023] Open
Abstract
Atrial fibrillation (AF) is the most prevalent arrhythmia, often caused by myocardial ischemia/infarction (MI). Men have a 1.5× higher prevalence of AF, whereas women show a higher risk for new onset AF after MI. However, the underlying mechanisms of how sex affects AF pathophysiology are largely unknown. In 72 pigs with/without ischemic heart failure (IHF) we investigated the impact of sex on ischemia-induced proarrhythmic atrial remodeling and the susceptibility for AF. Electrocardiogram (ECG) and electrophysiological studies were conducted to assess electrical remodeling; histological analyses were performed to assess atrial fibrosis in male and female pigs. IHF pigs of both sexes showed a significantly increased vulnerability for AF, but in male pigs more and longer episodes were observed. Unchanged conduction properties but enhanced left atrial fibrosis indicated structural rather than electrical remodeling underlying AF susceptibility. Sex differences were only observed in controls with female pigs showing an increased intrinsic heart rate, a prolonged QRS interval and a prolonged sinus node recovery time. In sum, susceptibility for AF is significantly increased both in male and female pigs with ischemic heart failure. Differences between males and females are moderate, including more and longer AF episodes in male pigs and sinus node dysfunction in female pigs.
Collapse
Affiliation(s)
- Valerie Pauly
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, D-81377 Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital Munich, LMU Munich, Marchioninistrasse 68, D-81377 Munich, Germany
| | - Julia Vlcek
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital Munich, LMU Munich, Marchioninistrasse 68, D-81377 Munich, Germany
| | - Zhihao Zhang
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, D-81377 Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital Munich, LMU Munich, Marchioninistrasse 68, D-81377 Munich, Germany
| | - Nora Hesse
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, D-81377 Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital Munich, LMU Munich, Marchioninistrasse 68, D-81377 Munich, Germany
| | - Ruibing Xia
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, D-81377 Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital Munich, LMU Munich, Marchioninistrasse 68, D-81377 Munich, Germany
| | - Julia Bauer
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, D-81377 Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital Munich, LMU Munich, Marchioninistrasse 68, D-81377 Munich, Germany
| | - Simone Loy
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, D-81377 Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital Munich, LMU Munich, Marchioninistrasse 68, D-81377 Munich, Germany
| | - Sarah Schneider
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, D-81377 Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital Munich, LMU Munich, Marchioninistrasse 68, D-81377 Munich, Germany
| | - Simone Renner
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU), LMU Munich, Feodor-Lynen-Strasse 19, D-81377 Munich, Germany
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Feodor-Lynen-Strasse 25, D-81377 Munich, Germany
- Center for Innovative Medical Models (CiMM), Department of Veterinary Sciences, LMU Munich, Hackerstrasse 27, D-85764 Oberschleissheim, Germany
- German Center for Diabetes Research (DZD), Ingolstädter Landstrasse 1, D-85764 Neuherberg, Germany
| | - Eckhard Wolf
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU), LMU Munich, Feodor-Lynen-Strasse 19, D-81377 Munich, Germany
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Feodor-Lynen-Strasse 25, D-81377 Munich, Germany
- Center for Innovative Medical Models (CiMM), Department of Veterinary Sciences, LMU Munich, Hackerstrasse 27, D-85764 Oberschleissheim, Germany
- German Center for Diabetes Research (DZD), Ingolstädter Landstrasse 1, D-85764 Neuherberg, Germany
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, Grosshadern Campus, LMU Munich, Feodor-Lynen-Stasse 25, D-81377 Munich, Germany
| | - Stefan Kääb
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, D-81377 Munich, Germany
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU), LMU Munich, Feodor-Lynen-Strasse 19, D-81377 Munich, Germany
| | - Dominik Schüttler
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, D-81377 Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital Munich, LMU Munich, Marchioninistrasse 68, D-81377 Munich, Germany
| | - Philipp Tomsits
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, D-81377 Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital Munich, LMU Munich, Marchioninistrasse 68, D-81377 Munich, Germany
| | - Sebastian Clauss
- Grosshadern Campus, Department of Medicine I, University Hospital Munich, Ludwig-Maximilians-University (LMU), Marchioninistrasse 15, D-81377 Munich, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance, D-81377 Munich, Germany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine, University Hospital Munich, LMU Munich, Marchioninistrasse 68, D-81377 Munich, Germany
- Interfaculty Center for Endocrine and Cardiovascular Disease Network Modelling and Clinical Transfer (ICONLMU), LMU Munich, Feodor-Lynen-Strasse 19, D-81377 Munich, Germany
| |
Collapse
|
15
|
Traxdorf M, Haferkamp J, Messbacher ME, Mueller SK, Mantsopoulos K, Gostian AO, Iro H, Wendler O, Bauer J. TIMP-1 as a biomarker in obstructive sleep apnea: screening, monitoring, risk stratification, and a step towards precision medicine. Eur Rev Med Pharmacol Sci 2023; 27:1374-1383. [PMID: 36876677 DOI: 10.26355/eurrev_202302_31374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
OBJECTIVE The diagnosis of obstructive sleep apnea (OSA) is a complex time- and resource-intensive diagnostic procedure. Since tissue inhibitors of matrix metalloproteinases (TIMP's) are involved in various pathophysiological processes and are correlated with a high cardiovascular risk, TIMP's appear to be a suitable candidate for an OSA-biomarker. PATIENTS AND METHODS In a prospective controlled diagnostic study, TIMP-1 serum levels of 273 OSA-patients and controls were analyzed for correlation with OSA severity, BMI, age, sex, cardio-/ cerebrovascular comorbidities. Furthermore, longitudinal medium- and long-term effects of CPAP-treatment (n=15) on TIMP-1-levels were investigated. RESULTS TIMP-1 was clearly linked to OSA as well as to disease severity (mild, moderate, severe; each p<0.001) and was not influenced by age, gender, BMI, or cardio-/cerebrovascular comorbidities. ROC curve analysis revealed an AUC of 0.91 ± 0.017 SE (p<0.001), suggesting a TIMP-1 cut-off value of 75 ng/ml (sensitivity 0.78; specificity 0.91) being especially sensitive for patients with severe OSA (sensitivity 0.89; specificity 0.91). The likelihood ratio was 8.88, while the diagnostic odds ratio was 37.14. CPAP-treatment led to a significant decrease of TIMP-1 after 6-8 months (p=0.008). CONCLUSIONS TIMP-1 seems to fulfill the preconditions for a circulating OSA-biomarker: disease-specific with a mandatory presence in affected patients, reversible on treatment, reflects disease severity and provides a cutoff value between the healthy state and disease. In the clinical routine, TIMP 1 may help to stratify the individual OSA-associated cardiovascular risk and to monitor the treatment response to CPAP-therapy as a further step towards providing a personalized therapy.
Collapse
Affiliation(s)
- M Traxdorf
- Department of Otorhinolaryngology, Head and Neck Surgery, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany.
| | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Illmer J, Wimmer M, Zauner R, Ablinger M, Bischof J, Tober V, Atzmüller S, Pröll J, Bauer J, Wally V. 476 Differential regulation of miR-200b in squamous cell carcinoma of patients with recessive dystrophic epidermolysis bullosa. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.490] [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: 11/19/2022]
|
17
|
Petkovic I, Bischof J, Kocher T, March O, Liemberger B, Hainzl S, Strunk D, Binder H, Bauer J, Koller U. 288 Traceless, homology-directed repair-mediated gene editing for junctional epidermolysis bullosa. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.300] [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: 11/19/2022]
|
18
|
Liemberger B, Bischof J, Kocher T, Ablinger M, Murauer E, Nyström A, Wally V, Mayr E, Bauer J, Koller U. 287 Development of a non-invasive, non-viral RNA therapy approach for dystrophic epidermolysis bullosa. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.299] [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: 11/19/2022]
|
19
|
Eichkorn T, Bauer J, Deng M, Bahn E, Lischalk J, Eva M, Elisabetta S, Regnery S, Held T, Juliane HR, Alber M, Klaus H, Juergen D, Semi H, Laila K. RADT-40. RADIATION-INDUCED CONTRAST ENHANCEMENT FOLLOWING PROTON RADIOTHERAPY FOR LOW-GRADE GLIOMA DEPENDS ON TUMOR CHARACTERISTICS AND IS RARER IN CHILDREN THAN ADULTS. Neuro Oncol 2022. [PMCID: PMC9660795 DOI: 10.1093/neuonc/noac209.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
Proton beam radiotherapy (PRT) is used in the treatment of low-grade glioma (LGG) to mitigate long-term sequelae. Following PRT, increased rates of radiation-induced contrast enhancements (RICE) are suspected but poorly understood. We analyzed consecutive 227 patients (42 children and 185 adults) treated with PRT (54Gy RBE) for LGG from 2010 to 2020 and followed with serial clinical exams and magnetic resonance imaging for in median 5.6 years. Tumors were graded WHO 1 in a minority (n = 22, 12%) of adults, but a majority of children (n = 29, 69%). In contrast, tumors were graded WHO 2 in the majority (n = 160, 87%) of adults and a minority of children (n = 10, 24%). Five-year overall survival following PRT was 81% in adults and 91% in children. The risk of RICE was 5-fold more frequent in adults (25%) versus children (5%) (p = 0.0043). Also, within the adult cohort, RICE risk increases with age (p = 0,00128). In children and adults, RICE were symptomatic in 50% and 55% (n = 1 and 26) of cases with CTCAE grade 0 in 47% (n = 23), grade 1 in 25% (n = 12), 0% grade 2 (n = 0) and 29% grade 3 (n = 14), respectively. In adults, RICE risk was associated to WHO grading (8% in WHO grade 1 vs. 24% in WHO grade 2, p = 0.026), independent of age (p = 0.44) and irradiation dose (p = 0.005), but not independent of IDH mutational status. These data demonstrate effectiveness of PRT for LGG in both children and adults. The RICE risk is lower in children which are a main target group for PRT and differs with WHO grading.
Collapse
Affiliation(s)
- Tanja Eichkorn
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Julia Bauer
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Maximilian Deng
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Emanuel Bahn
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany , Heidelberg , Germany
| | - Jonathan Lischalk
- Department of Radiation Oncology, Perlmutter Cancer Center at New York University Langone Health at Long Island , New York , USA
| | - Meixner Eva
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Sandrini Elisabetta
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Sebastian Regnery
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Thomas Held
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Hoerner-Rieber Juliane
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Markus Alber
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany , Heidelberg , Germany
| | - Herfarth Klaus
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Debus Juergen
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Harrabi Semi
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Koenig Laila
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| |
Collapse
|
20
|
Eichkorn T, Lischalk J, Deng M, Elisabetta S, Eva M, Regnery S, Held T, Bauer J, Bahn E, Semi H, Juliane HR, Klaus H, Juergen D, Laila K. RADT-41. IATROGENIC INFLUENCE ON PROGNOSIS OF RADIATION-INDUCED CONTRAST ENHANCEMENTS IN PATIENTS WITH GLIOMA WHO 1-3 FOLLOWING PHOTON AND PROTON RADIOTHERAPY. Neuro Oncol 2022. [PMCID: PMC9660831 DOI: 10.1093/neuonc/noac209.231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
Radiation-induced contrast enhancement (RICE) is a common side effect following radiotherapy for glioma, but both diagnosis and handling are challenging. Due to the potential risks associated with RICE and its challenges in differentiating RICE from tumor progression, it is critical to better understand how RICE prognosis depends on iatrogenic influence. We identified 99 patients diagnosed with RICE who were previously treated with either photon or proton therapy for World Health Organization (WHO) grade 1-3 primary gliomas. Post-treatment brain MRI-based volumetric analysis and clinical data collection was performed at multiple time points. The most common histologic subtypes were astrocytoma (50%) and oligodendroglioma (46%). In 67%, it was graded WHO grade 2 and in 86% an IDH mutation was present. RICE first occurred after 16 months (range: 1 - 160) in median. At initial RICE occurrence, 39% were misinterpreted as tumor progression. A tumor-specific therapy including chemotherapy or re-irradiation led to a RICE size progression in 86% and 92% of cases, respectively and RICE symptom progression in 57% and 65% of cases, respectively. A RICE-specific therapy such as corticosteroids or Bevacizumab for larger or symptomatic RICE led to a RICE size regression in 81% of cases with symptom stability or regression in 62% of cases. RICE progression went along with a worsening in progression-free survival (p = 0.04). While with chemotherapy and re-irradiation a RICE progression was frequently observed, anti-edematous or anti-VEGF treatment frequently went along with a RICE regression. For RICE, correct diagnosis and treatment decisions are challenging and critical and should be made interdisciplinarily.
Collapse
Affiliation(s)
- Tanja Eichkorn
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Jonathan Lischalk
- Department of Radiation Oncology, Perlmutter Cancer Center at New York University Langone Health at Long Island , New York , USA
| | - Maximilian Deng
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Sandrini Elisabetta
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Meixner Eva
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Sebastian Regnery
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Thomas Held
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Julia Bauer
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Emanuel Bahn
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany , Heidelberg , Germany
| | - Harrabi Semi
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Hoerner-Rieber Juliane
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Herfarth Klaus
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Debus Juergen
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| | - Koenig Laila
- Department of Radiation Oncology, University Hospital Heidelberg, and Heidelberg Institute for Radiation Oncology (HIRO) , Heidelberg , Germany
| |
Collapse
|
21
|
Mueller JE, Bauer J. Attitudes of healthcare professionals toward the COVID-19 vaccination campaign in France. Infect Dis Now 2022; 52:S21-S22. [PMID: 36108971 PMCID: PMC9467928 DOI: 10.1016/j.idnow.2022.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- J E Mueller
- École des hautes études en santé publique (EHESP), Rennes, France
| | - J Bauer
- Service Universitaire des Maladies Infectieuses et du Voyageurs, CH Dron, 59200 Tourcoing, France.
| |
Collapse
|
22
|
Abstract
SARS CoV 2 S-glycoproteins play a crucial role in the entry steps of viral particles. Due to their surface location, they are the main target for host immune responses and the focus of most vaccine strategies. The D614G mutation identified in late January became dominant during March 2020, rendering SARS-CoV-2 more infectious. In April 2020, the Alpha, Beta and Gamma variants emerged simultaneously in Asia, South Africa, and South America, respectively. They were 1.6 to 2 times more transmissible than the ancestral strain. The currently dominant Omicron variant (BA.2) is not a direct descendant from the D614G lineage, but rather emerged from the BA.1 variant (as did BA.4 and BA.5). It is substantially different from all the other variants. It presents significantly reduced susceptibility to antibody neutralization: after 2 doses of mRNA-vaccine, neutralizing titers to Omicron are 41 to 84 times lower than neutralization titers to D614G. That said, a booster dose of mRNA-vaccine increases Omicron neutralization titers and reduces the risk of severe infection.
Collapse
Affiliation(s)
- B Lina
- Laboratoire de virologie, Institut des Agents Infectieux, CHU Lyon, Lyon, France
| | - J Bauer
- Service Universitaire des Maladies Infectieuses et du Voyageurs, CH Dron, 59200 Tourcoing, France.
| |
Collapse
|
23
|
Lelievre JD, Bauer J. What are the prospects for durable immune control? Infect Dis Now 2022; 52:S4-S6. [PMID: 36113766 PMCID: PMC9472462 DOI: 10.1016/j.idnow.2022.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
During the SARS CoV-2 primary infection, the neutralizing antibodies focused against the spike (S) glycoproteins are responsible for blockage of virus-host cell interaction. The cellular response mediated by CD4+ and CD8+ T-cells is responsible for control of viremia. Immune memory against SARS-CoV-2 depends on virus type, replication kinetics and route of penetration. The formation and persistence of germinal centers are critical for the generation of affinity-matured plasma cells and memory B cells capable of mediating durable immunity. They can persist up to 30 weeks after vaccination and several months after infection. Heterogeneity in the longevity of the vaccination-induced GC response is significant.
Collapse
Affiliation(s)
- J D Lelievre
- Immunologie clinique et maladies infectieuses, Hôpital Henri-Mondor, 94000 Créteil, France
| | - J Bauer
- Service Universitaire des Maladies Infectieuses et du Voyageurs, CH Dron, 59200 Tourcoing, France.
| |
Collapse
|
24
|
Ragab N, Bauer J, Uhmann A, Marx A, Hahn H, Simon-Keller K. Tumor suppressive functions of WNT5A in rhabdomyosarcoma. Int J Oncol 2022; 61:102. [PMID: 35796028 PMCID: PMC9291248 DOI: 10.3892/ijo.2022.5392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 06/07/2022] [Indexed: 12/02/2022] Open
Abstract
Rhabdomyosarcoma (RMS) is a highly aggressive soft tissue malignancy that predominantly affects children. The main subtypes are alveolar RMS (ARMS) and embryonal RMS (ERMS) and the two show an impaired muscle differentiation phenotype. One pathway involved in muscle differentiation is WNT signaling. However, the role of this pathway in RMS is far from clear. Our recent data showed that the canonical WNT/β-Catenin pathway serves a subordinate role in RMS, whereas non-canonical WNT signaling probably is more important for this tumor entity. The present study investigated the role of WNT5A, which is the major ligand of non-canonical WNT signaling, in ERMS and ARMS. Gene expression analysis showed that WNT5A was expressed in human RMS samples and that its expression is more pronounced in ERMS. When stably overexpressed in RMS cell lines, WNT5A decreased proliferation and migration of the cells as demonstrated by BrdU incorporation and Transwell migration or scratch assay, respectively. WNT5A also decreased the self-renewal capacity and the expression of stem cell markers and modulates the levels of muscle differentiation markers as shown by sphere assay and western blot analysis, respectively. Finally, overexpression of WNT5A can destabilize active β-Catenin of RMS cells. A WNT5A knockdown has opposite effects. Together, the results suggest that WNT5A has tumor suppressive functions in RMS, which accompanies downregulation of β-Catenin.
Collapse
Affiliation(s)
- Nada Ragab
- Institute of Human Genetics, University Medical Center Göttingen, D‑37073 Göttingen, Germany
| | - Julia Bauer
- Institute of Human Genetics, University Medical Center Göttingen, D‑37073 Göttingen, Germany
| | - Anja Uhmann
- Institute of Human Genetics, University Medical Center Göttingen, D‑37073 Göttingen, Germany
| | - Alexander Marx
- Institute of Pathology, University Medical Center Mannheim, University of Heidelberg, D‑68167 Mannheim, Germany
| | - Heidi Hahn
- Institute of Human Genetics, University Medical Center Göttingen, D‑37073 Göttingen, Germany
| | - Katja Simon-Keller
- Institute of Pathology, University Medical Center Mannheim, University of Heidelberg, D‑68167 Mannheim, Germany
| |
Collapse
|
25
|
Eichkorn T, Lischalk JW, Sandrini E, Meixner E, Regnery S, Held T, Bauer J, Bahn E, Harrabi S, Hörner-Rieber J, Herfarth K, Debus J, König L. Iatrogenic Influence on Prognosis of Radiation-Induced Contrast Enhancements in Patients with Glioma WHO 1-3 following Photon and Proton Radiotherapy. Radiother Oncol 2022; 175:133-143. [PMID: 36041565 DOI: 10.1016/j.radonc.2022.08.025] [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: 03/17/2022] [Revised: 07/20/2022] [Accepted: 08/23/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE Radiation-induced contrast enhancement (RICE) is a common side effect following radiotherapy for glioma, but both diagnosis and handling are challenging. Due to the potential risks associated with RICE and its challenges in differentiating RICE from tumor progression, it is critical to better understand how RICE prognosis depends on iatrogenic influence. MATERIALS AND METHODS We identified 99 patients diagnosed with RICE who were previously treated with either photon or proton therapy for World Health Organization (WHO) grade 1-3 primary gliomas. Post-treatment brain MRI-based volumetric analysis and clinical data collection was performed at multiple time points. RESULTS The most common histologic subtypes were astrocytoma (50%) and oligodendroglioma (46%). In 67%, it was graded WHO grade 2 and in 86% an IDH mutation was present. RICE first occurred after 16 months (range: 1 - 160) in median. At initial RICE occurrence, 39% were misinterpreted as tumor progression. A tumor-specific therapy including chemotherapy or re-irradiation led to a RICE size progression in 86% and 92% of cases, respectively and RICE symptom progression in 57% and 65% of cases, respectively. A RICE-specific therapy such as corticosteroids or Bevacizumab for larger or symptomatic RICE led to a RICE size regression in 81% of cases with symptom stability or regression in 62% of cases. CONCLUSIONS While with chemotherapy and re-irradiation a RICE progression was frequently observed, anti-edematous or anti-VEGF treatment frequently went along with a RICE regression. For RICE, correct diagnosis and treatment decisions are challenging and critical and should be made interdisciplinarily.
Collapse
Affiliation(s)
- Tanja Eichkorn
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; National Center for Tumor diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.
| | - Jonathan W Lischalk
- Department of Radiation Oncology, Perlmutter Cancer Center at New York University Langone Health at Long Island, New York, NY, USA.
| | - Elisabetta Sandrini
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; National Center for Tumor diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.
| | - Eva Meixner
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; National Center for Tumor diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.
| | - Sebastian Regnery
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; National Center for Tumor diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.
| | - Thomas Held
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; National Center for Tumor diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.
| | - Julia Bauer
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.
| | - Emanuel Bahn
- Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Semi Harrabi
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; National Center for Tumor diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.
| | - Juliane Hörner-Rieber
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; National Center for Tumor diseases (NCT), Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; German Cancer Consortium (DKTK), partner site Heidelberg, Germany.
| | - Klaus Herfarth
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; National Center for Tumor diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.
| | - Jürgen Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; National Center for Tumor diseases (NCT), Heidelberg, Germany; Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; German Cancer Consortium (DKTK), partner site Heidelberg, Germany.
| | - Laila König
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany; National Center for Tumor diseases (NCT), Heidelberg, Germany; Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.
| |
Collapse
|
26
|
Bauer J, Hildebrandt M, Baumgartl M, Fiedler F, Robert C, Buvat I, Enghardt W, Parodi K. Quantitative assessment of radionuclide production yields in in-beam and offline PET measurements at different proton irradiation facilities. Phys Med Biol 2022; 67. [DOI: 10.1088/1361-6560/ac7a89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/20/2022] [Indexed: 11/12/2022]
Abstract
Abstract
Objective. Reliable radionuclide production yield data are a prerequisite for positron-emission-tomography (PET) based in vivo proton treatment verification. In this context, activation data acquired at two different treatment facilities with different imaging systems were analyzed to provide experimentally determined radionuclide yields in thick targets and were compared with each other to investigate the impact of the respective imaging technique. Approach. Homogeneous thick targets (PMMA, gelatine, and graphite) were irradiated with mono-energetic proton pencil-beams at two distinct energies. Material activation was measured (i) in-beam during and after beam delivery with a double-head prototype PET camera and (ii) offline shortly after beam delivery with a commercial full-ring PET/CT scanner. Integral as well as depth-resolved β
+-emitter yields were determined for the dominant positron-emitting radionuclides 11C, 15O, 13N and (in-beam only) 10C. In-beam data were used to investigate the qualitative impact of different monitoring time schemes on activity depth profiles and their quantitative impact on count rates and total activity. Main results. Production yields measured with the in-beam camera were comparable to or higher compared to respective offline results. Depth profiles of radionuclide-specific yields obtained from the double-head camera showed qualitative differences to data acquired with the full-ring camera with a more convex profile shape. Considerable impact of the imaging timing scheme on the activity profile was observed for gelatine only with a range variation of up to 3.5 mm. Evaluation of the coincidence rate and the total number of observed events in the considered workflows confirmed a strongly decreasing rate in targets with a large oxygen fraction. Significance. The observed quantitative and qualitative differences between the datasets underline the importance of a thorough system commissioning. Due to the lack of reliable cross-section data, in-house phantom measurements are still considered a gold standard for careful characterization of the system response and to ensure a reliable beam range verification.
Collapse
|
27
|
Bauer J, Bosshardt S, Grunwald T, Huppertz HJ, Knig K, Kohnen O, Shala J, Jokeit H. Social cognition in developmental and adult-onset amnesia: a multiple case-control study. Swiss Arch Neurol Psychiatr Psychother 2022. [DOI: 10.4414/sanp.2022.03239] [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: 02/10/2023] Open
|
28
|
Adamek M, Rebl A, Matras M, Lodder C, Abd El Rahman S, Stachnik M, Rakus K, Bauer J, Falco A, Jung-Schroers V, Piewbang C, Techangamsuwan S, Surachetpong W, Reichert M, Tetens J, Steinhagen D. Immunological insights into the resistance of Nile tilapia strains to an infection with tilapia lake virus. Fish Shellfish Immunol 2022; 124:118-133. [PMID: 35367372 DOI: 10.1016/j.fsi.2022.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 03/12/2022] [Accepted: 03/20/2022] [Indexed: 06/14/2023]
Abstract
The emergence of viral diseases affecting fish and causing very high mortality can lead to the disruption of aquaculture production. Recently, this occurred in Nile tilapia aquaculture where a disease caused by a systemic infection with a novel virus named tilapia lake virus (TiLV) caused havoc in cultured populations. With mortality surpassing 90% in young tilapia, the disease caused by TiLV has become a serious challenge for global tilapia aquaculture. In order to partly mitigate the losses, we explored the natural resistance to TiLV-induced disease in three genetic strains of tilapia which were kept at the University of Göttingen, Germany. We used two strains originating from Nilotic regions (Lake Mansala (MAN) and Lake Turkana (ELM)) and one from an unknown location (DRE). We were able to show that the virus is capable of overcoming the natural resistance of tilapia when injected, providing inaccurate mortality results that might complicate finding the resistant strains. Using the cohabitation infection model, we found an ELM strain that did not develop any clinical signs of the infection, which resulted in nearly 100% survival rate. The other two strains (DRE and MAN) showed severe clinical signs and much lower survival rates of 29.3% in the DRE strain and 6.7% in the MAN strain. The disease resistance of tilapia from the ELM strain was correlated with lower viral loads both at the mucosa and internal tissues. Our results suggest that the lower viral load could be caused by a higher magnitude of a mx1-based antiviral response in the initial phase of infection. The lower pro-inflammatory responses also found in the resistant strain might additionally contribute to its protection from developing pathological changes related to the disease. In conclusion, our results suggest the possibility of using TiLV-resistant strains as an ad hoc, cost-effective solution to the TiLV challenge. However, as the fish from the disease-resistant strain still retained significant virus loads in liver and brain and thus could become persistent virus carriers, they should be used within an integrative approach also combining biosecurity, diagnostics and vaccination measures.\.
Collapse
Affiliation(s)
- Mikolaj Adamek
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany.
| | - Alexander Rebl
- Fish Genetics Unit, Institute of Genome Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Marek Matras
- Laboratory of Fish Diseases, National Veterinary Research Institute, Pulawy, Poland
| | - Christian Lodder
- Department of Animal Sciences, Georg-August-University of Göttingen, Göttingen, Germany
| | - Sahar Abd El Rahman
- Department of Virology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Magdalena Stachnik
- Laboratory of Fish Diseases, National Veterinary Research Institute, Pulawy, Poland
| | - Krzysztof Rakus
- Department of Evolutionary Immunology, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Krakow, Poland
| | - Julia Bauer
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Alberto Falco
- Institute of Research, Development, and Innovation in Healthcare Biotechnology in Elche (IDiBE), Miguel Hernández University (UMH), 03202, Elche, Spain
| | - Verena Jung-Schroers
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Chutchai Piewbang
- Animal Virome and Diagnostic Development Research Group, Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Somporn Techangamsuwan
- Animal Virome and Diagnostic Development Research Group, Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Win Surachetpong
- Department of Veterinary Microbiology and Immunology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Michal Reichert
- Laboratory of Fish Diseases, National Veterinary Research Institute, Pulawy, Poland
| | - Jens Tetens
- Department of Animal Sciences, Georg-August-University of Göttingen, Göttingen, Germany; Center for Integrated Breeding Research, Georg-August-University of Göttingen, Göttingen, Germany
| | - Dieter Steinhagen
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| |
Collapse
|
29
|
Adamek M, Matras M, Rebl A, Stachnik M, Falco A, Bauer J, Miebach AC, Teitge F, Jung-Schroers V, Abdullah M, Krebs T, Schröder L, Fuchs W, Reichert M, Steinhagen D. Don't Let It Get Under Your Skin! - Vaccination Protects the Skin Barrier of Common Carp From Disruption Caused by Cyprinid Herpesvirus 3. Front Immunol 2022; 13:787021. [PMID: 35173716 PMCID: PMC8842664 DOI: 10.3389/fimmu.2022.787021] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/11/2022] [Indexed: 12/14/2022] Open
Abstract
Vaccination is the best form of protecting fish against viral diseases when the pathogen cannot be contained by biosecurity measures. Vaccines based on live attenuated viruses seem to be most effective for vaccination against challenging pathogens like Cyprinid herpesvirus 3. However, there are still knowledge gaps how these vaccines effectively protect fish from the deadly disease caused by the epitheliotropic CyHV-3, and which aspects of non-direct protection of skin or gill integrity and function are important in the aquatic environment. To elucidate some elements of protection, common carp were vaccinated against CyHV-3 using a double deletion vaccine virus KHV-T ΔDUT/TK in the absence or presence of a mix of common carp beta-defensins 1, 2 and 3 as adjuvants. Vaccination induced marginal clinical signs, low virus load and a minor upregulation of cd4, cd8 and igm gene expression in vaccinated fish, while neutralisation activity of blood serum rose from 14 days post vaccination (dpv). A challenge infection with CyHV-3 induced a severe disease with 80-100% mortality in non-vaccinated carp, while in vaccinated carp, no mortality was recorded and the virus load was >1,000-fold lower in the skin, gill and kidney. Histological analysis showed strongest pathological changes in the skin, with a complete destruction of the epidermis in non-vaccinated carp. In the skin of non-vaccinated fish, T and B cell responses were severely downregulated, inflammation and stress responses were increased upon challenge, whereas vaccinated fish had boosted neutrophil, T and B cell responses. A disruption of skin barrier elements (tight and adherence junction, desmosomes, mucins) led to an uncontrolled increase in skin bacteria load which most likely exacerbated the inflammation and the pathology. Using a live attenuated virus vaccine, we were able to show that increased neutrophil, T and B cell responses provide protection from CyHV-3 infection and lead to preservation of skin integrity, which supports successful protection against additional pathogens in the aquatic environment which foster disease development in non-vaccinated carp.
Collapse
Affiliation(s)
- Mikolaj Adamek
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Marek Matras
- Laboratory of Fish Diseases, National Veterinary Research Institute, Pulawy, Poland
| | - Alexander Rebl
- Fish Genetics Unit, Research Institute for Farm Animal Biology (FBN), Institute of Genome Biology, Dummerstorf, Germany
| | - Magdalena Stachnik
- Laboratory of Fish Diseases, National Veterinary Research Institute, Pulawy, Poland
| | - Alberto Falco
- Institute of Research, Development, and Innovation in Healthcare Biotechnology in Elche (IDiBE), Miguel Hernández University (UMH), Elche, Spain
| | - Julia Bauer
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Anne-Carina Miebach
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Felix Teitge
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Verena Jung-Schroers
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Muhammad Abdullah
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Torben Krebs
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Lars Schröder
- Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Walter Fuchs
- Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Michal Reichert
- Laboratory of Fish Diseases, National Veterinary Research Institute, Pulawy, Poland
| | - Dieter Steinhagen
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine Hannover, Hannover, Germany
| |
Collapse
|
30
|
Bauer J, Kösel E, Henkel AG, Spinner CD, Kolisch R. [Integrated care concepts and multidisciplinary process chains in a radiological context]. Radiologe 2022; 62:331-342. [PMID: 35201396 DOI: 10.1007/s00117-022-00976-x] [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] [Accepted: 01/24/2022] [Indexed: 10/19/2022]
Abstract
Modern patient-centered and cost-efficient care concepts in hospitals require the mapping of multidisciplinary process chains into clinical pathways. Clinical decision support systems and operations research methods use algorithms to classify patients into homogeneous groups and to model a complete clinical pathway for scheduling individual procedures. An improvement of the economic situation of the care facility can be achieved through improved resource utilization, reduced patient waiting times and a shortening of the length of stay. The interdisciplinary use of centrally stored interoperable information and comprehensive care management via information technology (IT) services lay the foundation for the dissolution of traditional IT system architectures in medicine and the development of flexibly integrable modern system platforms. New IT approaches such as the semantically standardized definition of procedures and resource properties, the use of clinical decision support systems and the use of service-oriented system architectures form the basis for the deep integration of radiology services into comprehensive interdisciplinary care concepts.
Collapse
Affiliation(s)
- J Bauer
- Abteilung Informationstechnologie, Klinikum rechts der Isar, Fakultät für Medizin, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland.
| | - E Kösel
- Abteilung Informationstechnologie, Klinikum rechts der Isar, Fakultät für Medizin, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland
| | - A G Henkel
- Abteilung Informationstechnologie, Klinikum rechts der Isar, Fakultät für Medizin, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland
| | - C D Spinner
- Abteilung Informationstechnologie, Klinikum rechts der Isar, Fakultät für Medizin, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland
| | - R Kolisch
- Lehrstuhl für Operations Management, Fakultät für Wirtschaftswissenschaften, Technische Universität München, München, Deutschland
| |
Collapse
|
31
|
Staudacher JJ, Bauer J, Atkinson SR, Thursz M, Lang S, Schnabl B, Wiley MB, Carr R, Jung B. Systemic Activin Is Elevated in Patients With Severe Alcoholic Hepatitis. Gastro Hep Adv 2022; 1:147-149. [PMID: 35602917 PMCID: PMC9119346 DOI: 10.1016/j.gastha.2021.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- J J Staudacher
- Department of Gastroenterology, Infectious Disease and Rheumatology, Charite-University Medicine, Berlin, Germany
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - J Bauer
- Department of Medicine, University of Washington, Seattle, Washington
| | - S R Atkinson
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - M Thursz
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - S Lang
- Department of Medicine, University of California San Diego, La Jolla, California
| | - B Schnabl
- Department of Medicine, University of California San Diego, La Jolla, California
- Department of Medicine, VA San Diego Healthcare System, San Diego, California
| | - M B Wiley
- Department of Medicine, University of Washington, Seattle, Washington
| | - R Carr
- Department of Medicine, University of Washington, Seattle, Washington
| | - B Jung
- Department of Medicine, University of Washington, Seattle, Washington
| |
Collapse
|
32
|
Ragab N, Bauer J, Botermann DS, Uhmann A, Hahn H. Oncogenic NRAS Accelerates Rhabdomyosarcoma Formation When Occurring within a Specific Time Frame during Tumor Development in Mice. Int J Mol Sci 2021; 22:ijms222413377. [PMID: 34948179 PMCID: PMC8703790 DOI: 10.3390/ijms222413377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 11/26/2022] Open
Abstract
In the Ptch+/- mouse model for embryonal rhabdomyosarcoma (ERMS), we recently showed that oncogenic (onc) H-, K- or NRAS mutations do not influence tumor growth when induced at the advanced, full-blown tumor stage. However, when induced at the invisible ERMS precursor stage at 4 weeks of age, tumor development was enforced upon oncHRAS and oncKRAS but not by oncNRAS, which instead initiated tumor differentiation. These data indicate that oncRAS-associated processes differ from each other in dependency on the isoform and their occurrence during tumor development. Here, we investigated the outcome of oncNRAS induction at an earlier ERMS precursor stage at 2 weeks of age. In this setting, oncNRAS accelerates tumor growth because it significantly shortens the ERMS-free survival and increases the ERMS incidence. However, it does not seem to alter the differentiation of the tumors. It is also not involved in tumor initiation. Together, these data show that oncNRAS mutations can accelerate tumor growth when targeting immature ERMS precursors within a specific time window, in which the precursors are permissive to the mutation and show that oncNRAS-associated processes differ from each other in dependency on their occurrence during tumor development.
Collapse
Affiliation(s)
| | | | | | | | - Heidi Hahn
- Correspondence: ; Tel.: +49-(0)551-3914010
| |
Collapse
|
33
|
Bauer J, Jung-Schroers V, Teitge F, Adamek M, Steinhagen D. Association of the alga Cladogonium sp. with a multifactorial disease outbreak in dwarf shrimp (Neocaridina davidi). Dis Aquat Organ 2021; 146:107-115. [PMID: 34617516 DOI: 10.3354/dao03625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study outlines a multifactorial disease outbreak in a population of the freshwater shrimp Neocaridina davidi, with the focus on a rarely described parasitic alga. Within this multifactorial disease outbreak, low but consistent mortality was observed. During microscopic examination, an infection of the shrimp with bacterial and fungal-like agents was diagnosed. Furthermore, the green alga Cladogonium sp. was found in pleopodal regions. The alga compromised the body surface of the shrimp, and its rhizoids penetrated the chitin shell and reached into the subcutaneous tissue. This might be a first indication of a parasitic lifestyle. In addition to a morphological description, sequencing data are presented which allow the taxonomic classification of the organism within the order Trentepohliales.
Collapse
Affiliation(s)
- Julia Bauer
- University of Veterinary Medicine Hannover, Fish Disease Research Unit, Bünteweg 17, 30559 Hannover, Germany
| | | | | | | | | |
Collapse
|
34
|
Bauer J, Andreas F, Adriana R, Rathner P, Poeltner K, von Hagen J, Mosshammer C, Gerner C, Krauss J, Breitenbach-Koller H. 158 Targeting gene expression at the ribosome: Correction of the mutation LAMB3R635X in Epidermolysis bullosa. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.08.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
35
|
Pahmeier K, Denkinger M, Seufferlein T, Klaus J, Bauer J, Katus H, Bahrmann A, Geisler T, Muche R, Müller M, Suhr R, Frankenhauser-Mannuß J, Flagmeier AL, Dallmeier D, Leinert C, Wasem J, Biermann-Stallwitz J, Neumann A. Studiendesign – Gesundheitsökonomische Evaluation einer Interventionsstudie zur Delirreduktion (TRADE). Das Gesundheitswesen 2021. [DOI: 10.1055/s-0041-1732237] [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)
- K Pahmeier
- Universität Duisburg-Essen, Lehrstuhl für Medizinmanagement
| | - M Denkinger
- AGAPLESION Bethesda Klinik, Geriatrische Forschung der Universität Ulm
| | - T Seufferlein
- Universitätsklinikum Ulm, Klinik für Innere Medizin I
| | - J Klaus
- Universitätsklinikum Ulm, Klinik für Innere Medizin I
| | - J Bauer
- AGAPLESION BETHANIEN Krankenhaus Heidelberg, Klinik für Akutgeriatrie
| | - H Katus
- Universitätsklinikum Heidelberg, Klinik für Kardiologie, Angiologie, Pneumologie
| | - A Bahrmann
- Universitätsklinikum Heidelberg, Klinik für Kardiologie, Angiologie, Pneumologie
| | - T Geisler
- Universitätsklinikum Tübingen, Deutsches Herzkompetenzzentrum, Medizinische Klinik III
| | - R Muche
- Universität Ulm, Institut für Epidemiologie und Medizinische Biometrie
| | - M Müller
- Technische Hochschule Rosenheim, Fakultät für Angewandte Gesundheits- und Sozialwissenschaften
| | - R Suhr
- Zentrum für Qualität in der Pflege
| | | | - AL Flagmeier
- AOK Baden-Württemberg, Rehabilitations- und Pflegeforschung
| | - D Dallmeier
- AGAPLESION Bethesda Klinik, Geriatrische Forschung der Universität Ulm
| | - C Leinert
- AGAPLESION Bethesda Klinik, Geriatrische Forschung der Universität Ulm
| | - J Wasem
- Universität Duisburg-Essen, Lehrstuhl für Medizinmanagement
| | | | - A Neumann
- Universität Duisburg-Essen, Lehrstuhl für Medizinmanagement
| |
Collapse
|
36
|
Sørensen BS, Pawelke J, Bauer J, Burnet NG, Dasu A, Høyer M, Karger CP, Krause M, Schwarz M, Underwood TSA, Wagenaar D, Whitfield GA, Lühr A. Does the uncertainty in relative biological effectiveness affect patient treatment in proton therapy? Radiother Oncol 2021; 163:177-184. [PMID: 34480959 DOI: 10.1016/j.radonc.2021.08.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [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: 06/20/2021] [Revised: 08/09/2021] [Accepted: 08/22/2021] [Indexed: 10/20/2022]
Abstract
Clinical treatment with protons uses the concept of relative biological effectiveness (RBE) to convert the absorbed dose into an RBE-weighted dose that equals the dose for radiotherapy with photons causing the same biological effect. Currently, in proton therapy a constant RBE of 1.1 is generically used. However, empirical data indicate that the RBE is not constant, but increases at the distal edge of the proton beam. This increase in RBE is of concern, as the clinical impact is still unresolved, and clinical studies demonstrating a clinical effect of an increased RBE are emerging. Within the European Particle Therapy Network (EPTN) work package 6 on radiobiology and RBE, a workshop was held in February 2020 in Manchester with one day of discussion dedicated to the impact of proton RBE in a clinical context. Current data on RBE effects, patient outcome and modelling from experimental as well as clinical studies were presented and discussed. Furthermore, representatives from European clinical proton therapy centres, who were involved in patient treatment, laid out their current clinical practice on how to consider the risk of a variable RBE in their centres. In line with the workshop, this work considers the actual impact of RBE issues on patient care in proton therapy by reviewing preclinical data on the relation between linear energy transfer (LET) and RBE, current clinical data sets on RBE effects in patients, and applied clinical strategies to manage RBE uncertainties. A better understanding of the variability in RBE would allow development of proton treatments which are safer and more effective.
Collapse
Affiliation(s)
- Brita S Sørensen
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark; Experimental Clinical Oncology - Department of Oncology, Aarhus University Hospital, Aarhus, Denmark.
| | - Jörg Pawelke
- OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Institute of Radiooncology-OncoRay, Dresden, Germany
| | - Julia Bauer
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany
| | | | - Alexandru Dasu
- The Skandion Clinic, Uppsala, Sweden; Medical Radiation Sciences, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Morten Høyer
- Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | - Christian P Karger
- Dept. of Medical Physics in Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany; Heidelberg Institute for Radiation Oncology (HIRO) and National Center for Radiation Research in Oncology (NCRO), Heidelberg, Germany
| | - Mechthild Krause
- OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany; Helmholtz-Zentrum Dresden - Rossendorf (HZDR), Institute of Radiooncology-OncoRay, Dresden, Germany; German Cancer Consortium Dresden and German Cancer Research Center Heidelberg, Germany; Dept. of Radiation Oncology, University Hospital and Faculty of Medicine C.G. Carus, Dresden, Germany; National Center for Tumor Diseases Dresden, German Cancer Research Center Heidelberg, University Hospital and Faculty of Medicine C.G. Carus Dresden, Helmholtz-Zentrum Dresden - Rossendorf, Dresden, Germany
| | - Marco Schwarz
- Protontherapy Department -Trento Hospital, and TIFPA-INFN, Trento, Italy
| | - Tracy S A Underwood
- Division of Cancer Sciences, School of Medical Sciences, The University of Manchester, UK
| | - Dirk Wagenaar
- Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Gillian A Whitfield
- The Christie NHS Foundation Trust, Manchester, UK; University of Manchester, UK
| | - Armin Lühr
- Department of Physics, TU Dortmund University, Dortmund, Germany
| |
Collapse
|
37
|
Eckert I, Koehler IC, Bauer J, Busnello FM, Silva FM. Effects of different sources of dietary protein on markers of kidney function in individuals with diabetes: a systematic review and meta-analysis of randomized controlled trials. Nutr Rev 2021; 80:812-825. [PMID: 34338778 DOI: 10.1093/nutrit/nuab042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
CONTEXT The type of dietary protein may modulate markers of diabetic kidney disease; however, no attempt to summarize the evidence from randomized controlled trials (RCTs) has been performed to date. OBJECTIVE To assess the effects of different types of dietary protein on urinary albumin excretion and glomerular filtration rate in individuals with diabetes. DATA SOURCES MEDLINE, EMBASE, and Scopus were searched for all published RCTs, with no language restriction, up to July 2020. DATA EXTRACTION Study selection and data extraction were performed independently by 3 authors. Risk of bias was assessed independently by 2 authors, and the GRADE approach was used to assess the quality of the evidence. RESULTS Twelve RCTs were included, of which 11 (involving 228 participants) were compiled in meta-analyses of random-effects models. Interventions consisted of diets emphasizing plant or white meat protein, with reduced intake of animal or red meat protein. Pooled data from crossover trials (n = 8) favored intervention diets for urinary albumin excretion (ratio of means, 0.86; 95% confidence interval 0.80 to 0.94; I2 = 4%) and glomerular filtration rate (ratio of means, 0.90; 95% confidence interval 0.87 to 0.94; I2 = 45%), compared with control diets. Results from parallel-design studies (n = 3), however, were not statistically significant for any outcome. The quality of the evidence ranged from very low to moderate, and most studies were judged with at least some concerns in terms of risk of bias. CONCLUSION This meta-analysis found weak evidence for small to moderate improvements in markers of kidney function in favor of interventions with lower animal protein (or red meat protein) compared with usual diets in short-term crossover trials. These findings require confirmation in well-designed randomized controlled trials.
Collapse
Affiliation(s)
- Igor Eckert
- I. Eckert is with the Undergraduate Nutrition Program, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. I.C. Koehler is with the Undergraduate Medical Program, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. J. Bauer is with the Postgraduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. F.M. Busnello and F.M. Silva are with the Department of Nutrition and Postgraduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil
| | - Igor C Koehler
- I. Eckert is with the Undergraduate Nutrition Program, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. I.C. Koehler is with the Undergraduate Medical Program, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. J. Bauer is with the Postgraduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. F.M. Busnello and F.M. Silva are with the Department of Nutrition and Postgraduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil
| | - Julia Bauer
- I. Eckert is with the Undergraduate Nutrition Program, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. I.C. Koehler is with the Undergraduate Medical Program, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. J. Bauer is with the Postgraduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. F.M. Busnello and F.M. Silva are with the Department of Nutrition and Postgraduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil
| | - Fernanda M Busnello
- I. Eckert is with the Undergraduate Nutrition Program, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. I.C. Koehler is with the Undergraduate Medical Program, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. J. Bauer is with the Postgraduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. F.M. Busnello and F.M. Silva are with the Department of Nutrition and Postgraduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil
| | - Flávia M Silva
- I. Eckert is with the Undergraduate Nutrition Program, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. I.C. Koehler is with the Undergraduate Medical Program, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. J. Bauer is with the Postgraduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil. F.M. Busnello and F.M. Silva are with the Department of Nutrition and Postgraduate Program in Nutrition Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rio Grande do Sul, Brazil
| |
Collapse
|
38
|
Adamek M, Heling M, Bauer J, Teitge F, Bergmann SM, Kleingeld DW, Welzel A, Scuda N, Bachmann J, Louis CS, Böttcher K, Bräuer G, Steinhagen D, Jung-Schroers V. It is everywhere-A survey on the presence of carp edema virus in carp populations in Germany. Transbound Emerg Dis 2021; 69:2227-2241. [PMID: 34231974 DOI: 10.1111/tbed.14225] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/22/2021] [Accepted: 07/05/2021] [Indexed: 11/28/2022]
Abstract
Carp edema virus (CEV) is the causative agent of koi sleepy disease (KSD), a serious gill disease affecting common carp, Cyprinus carpio, and its ornamental variety, koi. After recent detections of the virus in various countries around the world, KSD has emerged as a new global disease in carp. However, the prevalence of the infection in carp populations in a given geographical region has not been studied thoroughly. The present communication reports an investigation into the presence of CEV in carp and koi populations in Germany. For this purpose, gill samples collected from carp and koi populations suffering from gill diseases or collected for a routine examination of their health status were tested for the presence of CEV by PCR. In total, 651 fish samples from 401 carp or koi cases were examined in 2015 and 2016, additional 118 samples from previous studies were included in the examination. CEV was detected in archive samples from carp dating back to 2007, and in koi samples dating back to 2009. From 2015 to 2016, CEV was detected in 69% of cases from carp populations examined from the main carp-producing areas in Germany, and in 41% of the examined cases from koi populations from all over Germany. Clinical KSD occurred mainly from April to June in carp populations at water temperatures ranging from 8 to 12°C and in koi populations at water temperatures ranging from 18 to 22°C. Most fish from clinically affected carp or koi populations harboured high virus loads of above 10,000 copies of CEV-specific DNA per 250 ng DNA, while gills from fish of other fish species from the ponds, including goldfish, grass carp and European perch were found CEV negative or harboured a low virus load. A phylogenetic analysis revealed the presence of multiple CEV variants from genogroup I in carp and genogroup II in koi populations in Germany. Genetically identical genogroup I isolates were detected in carp from different geographical locations in Germany and in other European carp populations. Some German genogroup II variants were identical to variants previously recorded from koi in Asian and other European countries. The data presented here show that CEV is highly prevalent in German common carp and koi populations and implies the spreading of this virus by intense trading of common carp and koi without necessary risk mitigating measures. As infections with this virus may induce serious disease, CEV diagnostic should be included in health surveillance and disease monitoring programmes.
Collapse
Affiliation(s)
- Mikolaj Adamek
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine, Hannover, Germany
| | - Max Heling
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine, Hannover, Germany
| | - Julia Bauer
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine, Hannover, Germany
| | - Felix Teitge
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine, Hannover, Germany
| | - Sven M Bergmann
- Institute of Infectology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Dirk Willem Kleingeld
- Lower Saxony State Office for Consumer Protection and Food Safety, Veterinary Task Force, Hannover, Germany
| | - Alice Welzel
- Lower Saxony Ministry for Food, Agriculture and Consumer Protection, Hannover, Germany
| | - Nelly Scuda
- Bavarian Health and Food Safety Authority, Erlangen, Germany
| | | | - Carola Sauter Louis
- Institute of Epidemiology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | | | - Grit Bräuer
- Saxony Animal Disease Fund, Dresden, Germany
| | - Dieter Steinhagen
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine, Hannover, Germany
| | - Verena Jung-Schroers
- Fish Disease Research Unit, Institute for Parasitology, University of Veterinary Medicine, Hannover, Germany
| |
Collapse
|
39
|
Kotthoff M, Bauer J, Haag F, Krautwurst D. Conserved C-terminal motifs in odorant receptors instruct their cell surface expression and cAMP signaling. FASEB J 2021; 35:e21274. [PMID: 33464692 DOI: 10.1096/fj.202000182rr] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 10/30/2020] [Accepted: 11/30/2020] [Indexed: 11/11/2022]
Abstract
The highly individual plasma membrane expression and cAMP signaling of odorant receptors have hampered their ligand assignment and functional characterization in test cell systems. Chaperones have been identified to support the cell surface expression of only a portion of odorant receptors, with mechanisms remaining unclear. The presence of amino acid motifs that might be responsible for odorant receptors' individual intracellular retention or cell surface expression, and thus, for cAMP signaling, is under debate: so far, no such protein motifs have been suggested. Here, we demonstrate the existence of highly conserved C-terminal amino acid motifs, which discriminate at least between class-I and class-II odorant receptors, with their numbers of motifs increasing during evolution, by comparing C-terminal protein sequences from 4808 receptors across eight species. Truncation experiments and mutation analysis of C-terminal motifs, largely overlapping with helix 8, revealed single amino acids and their combinations to have differential impact on the cell surface expression and on stimulus-dependent cAMP signaling of odorant receptors in NxG 108CC15 cells. Our results demonstrate class-specific and individual C-terminal motif equipment of odorant receptors, which instruct their functional expression in a test cell system, and in situ may regulate their individual cell surface expression and intracellular cAMP signaling.
Collapse
Affiliation(s)
| | - Julia Bauer
- Leibniz-Institute for Food Systems Biology at the Technical University of Munich, Freising, Germany
| | - Franziska Haag
- Leibniz-Institute for Food Systems Biology at the Technical University of Munich, Freising, Germany
| | - Dietmar Krautwurst
- Leibniz-Institute for Food Systems Biology at the Technical University of Munich, Freising, Germany
| |
Collapse
|
40
|
Preikschas P, Plodinec M, Bauer J, Kraehnert R, Naumann d’Alnoncourt R, Schlögl R, Driess M, Rosowski F. Tuning the Rh–FeO x Interface in Ethanol Synthesis through Formation Phase Studies at High Pressures of Synthesis Gas. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05365] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Phil Preikschas
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Milivoj Plodinec
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Julia Bauer
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Ralph Kraehnert
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Raoul Naumann d’Alnoncourt
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
| | - Robert Schlögl
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Matthias Driess
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
- Metalorganic Chemistry and Inorganic Materials, Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 135, Sekr. C2, 10623 Berlin, Germany
| | - Frank Rosowski
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, Hardenbergstraße 36, Sekr. EW-K01, 10623 Berlin, Germany
- BASF SE, Process Research and Chemical Engineering, Heterogeneous Catalysis, Carl-Bosch-Straße 38, 67056 Ludwigshafen, Germany
| |
Collapse
|
41
|
Serra C, Akeret K, Staartjes VE, Ramantani G, Grunwald T, Jokeit H, Bauer J, Krayenbühl N. Safety of the paramedian supracerebellar-transtentorial approach for selective amygdalohippocampectomy. Neurosurg Focus 2021; 48:E4. [PMID: 32234984 DOI: 10.3171/2020.1.focus19909] [Citation(s) in RCA: 6] [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: 11/29/2019] [Accepted: 01/24/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The goal of this study was to assess the reproducibility and safety of the recently introduced paramedian supracerebellar-transtentorial (PST) approach for selective amygdalohippocampectomy (SA). METHODS The authors performed a retrospective analysis of prospectively collected data originating from their surgical register of patients undergoing SA via a PST approach for lesional medial temporal lobe epilepsy. All patients received thorough pre- and postoperative clinical (neurological, neuropsychological, psychiatric) and instrumental (ictal and long-term EEG, invasive EEG if needed, MRI) workup. Surgery-induced complications were assessed at discharge and at every follow-up thereafter and were classified according to Clavien-Dindo grade (CDG). Epilepsy outcome was defined according to Engel classification. Data were reported according to common descriptive statistical methods. RESULTS Between May 2015 and May 2018, 17 patients underwent SA via a PST approach at the authors' institution (hippocampal sclerosis in 13 cases, WHO grade II glioma in 2 cases, and reactive gliosis in 2 cases). The median postoperative follow-up was 7 months (mean 9 months, range 3-19 months). There was no surgery-related mortality and no complication (CDG ≥ 2) in the whole series. Transitory CDG 1 surgical complications occurred in 4 patients and had resolved in all of them by the first postoperative follow-up. One patient showed a deterioration of neuropsychological performance with new slight mnestic deficits. No patient experienced a clinically relevant postoperative visual field defect. No morbidity due to semisitting position was recorded. At last follow-up 13/17 (76.4%) patients were in Engel class I (9/17 [52.9%] were in class IA). CONCLUSIONS The PST approach is a reproducible and safe surgical route for SA. The achievable complication rate is in line with the best results in the literature. Visual function outcome particularly benefits from this highly selective, neocortex-sparing approach. A larger patient sample and longer follow-up will show in the future if the seizure control rate and neuropsychological outcome also compare better than those achieved with current common surgical techniques.
Collapse
Affiliation(s)
- Carlo Serra
- 1Department of Neurosurgery, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich
| | - Kevin Akeret
- 1Department of Neurosurgery, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich
| | - Victor E Staartjes
- 1Department of Neurosurgery, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich
| | - Georgia Ramantani
- 2Division of Pediatric Neurology, University Children's Hospital, Zurich
| | - Thomas Grunwald
- 3Department of Neuropsychology, Swiss Epilepsy Clinic, Klinik Lengg AG, Zurich; and
| | - Hennric Jokeit
- 3Department of Neuropsychology, Swiss Epilepsy Clinic, Klinik Lengg AG, Zurich; and
| | - Julia Bauer
- 3Department of Neuropsychology, Swiss Epilepsy Clinic, Klinik Lengg AG, Zurich; and
| | - Niklaus Krayenbühl
- 1Department of Neurosurgery, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich.,4Division of Pediatric Neurosurgery, Children's University Hospital Zurich, Switzerland
| |
Collapse
|
42
|
Bauer J, Bahn E, Harrabi S, Herfarth K, Debus J, Alber M. How can scanned proton beam treatment planning for low-grade glioma cope with increased distal RBE and locally increased radiosensitivity for late MR-detected brain lesions? Med Phys 2021; 48:1497-1507. [PMID: 33506555 DOI: 10.1002/mp.14739] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 08/07/2020] [Revised: 12/10/2020] [Accepted: 01/16/2021] [Indexed: 11/06/2022] Open
Abstract
A novel risk model has recently been proposed for the occurrence of late contrast-enhancing brain lesions (CEBLs) after proton irradiation of low-grade glioma (LGG) patients. It predicts a strong dependence on dose-weighted linear-energy transfer (LETd effect) and an increased radiosensitivity of the ventricular proximity, a 4-mm fringe surrounding the ventricular system (VP4mm effect). On this basis, we investigated (A) how these two risk factors and patient-specific anatomical and treatment plan (TP) features contribute to normal tissue complication probability (NTCP) and (B) if conventional LETd -reduction techniques like multiple-field TP are able to reduce NTCP. (A) The LGG model cohort (N = 110) was stratified with respect to prescribed dose, tumor grade, and treatment field configuration. NTCP predictions and CEBL occurrence rates per strata were analyzed. (B) The effect of multiple-field TP was investigated in two patient groups: (i) nine high-risk subjects with extended lateral target volumes who had developed CEBLs after single-beam treatments were retrospectively replanned with a clinical standard two-field setting using almost orthogonal fields and strictly opposing fields, (ii) single-field treatments were simulated for seven low-risk patients with small central target volumes clinically treated with two strictly opposing fields. (A) In the model cohort, we identified the exposure of the radiosensitive VP4mm fringe with proton field components of increased biological effectiveness as dominant NTCP driving factor. We observed that larger target volumes and location lateral to the main ventricles, both being characteristic for WHO°II tumors, presented with the highest complication risks. Among subjects of an equal dose prescription of 54 Gy(RBE), the highest median NTCP was obtained for the WHO°II group treated with two fields using sharp angles. (B) Regarding the effect of multiple-field plans, we found that an NTCP reduction was only achievable in the low-risk group where the LETd effect dominates and the VP4mm effect is small. NTCP of the single-field plans was 23% higher compared to the clinical opposing field plan. In the high-risk group, where the VP4mm effect dominates the risk, both two-field scenarios yielded 44% higher NTCP predictions compared to the clinical single-field plans. The interplay of an increased radiosensitivity in the VP4mm fringe with proton field components of increased biological effectiveness creates a geometric complexity that can hardly be managed by current clinical TP. Our results underline that advanced biologically guided TP approaches become crucial for an effective risk minimization in proton therapy of LGG.
Collapse
Affiliation(s)
- Julia Bauer
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,National Center for Tumor diseases (NCT), Heidelberg, Germany
| | - Emanuel Bahn
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,National Center for Tumor diseases (NCT), Heidelberg, Germany.,Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Semi Harrabi
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,National Center for Tumor diseases (NCT), Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Klaus Herfarth
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,National Center for Tumor diseases (NCT), Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Jürgen Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,National Center for Tumor diseases (NCT), Heidelberg, Germany.,Clinical Cooperation Unit Radiation Oncology, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Heidelberg Ion-Beam Therapy Center (HIT), Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
| | - Markus Alber
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany.,Heidelberg Institute of Radiation Oncology (HIRO), Heidelberg, Germany.,National Center for Tumor diseases (NCT), Heidelberg, Germany
| |
Collapse
|
43
|
Bauer J, Teitge F, Neffe L, Adamek M, Jung A, Peppler C, Steinhagen D, Jung-Schroers V. Impact of a reduced water salinity on the composition of Vibrio spp. in recirculating aquaculture systems for Pacific white shrimp (Litopenaeus vannamei) and its possible risks for shrimp health and food safety. J Fish Dis 2021; 44:89-105. [PMID: 32971569 DOI: 10.1111/jfd.13270] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/25/2020] [Accepted: 08/27/2020] [Indexed: 05/27/2023]
Abstract
Tropical shrimp, like Litopenaeus vannamei, in land-based recirculating aquaculture systems (RAS) are often kept at low water salinities to reduce costs for artificial sea salt and the amount of salty wastewater. Although these shrimp are tolerant against low salinities, innate immunity suppression and changes in the microbial composition in the water can occur. As especially Vibrio spp. are relevant for shrimp health, alterations in the species composition of the Vibrio community were analysed in water from six RAS, run at 15‰ or 30‰. Additionally, pathogenicity factors including pirA/B, VPI, toxR, toxS, vhh, vfh, tdh, trh, flagellin genes and T6SS1/2 of V. parahaemolyticus were analysed. The Vibrio composition differed significantly depending on water salinity. In RAS at 15‰, higher numbers of the potentially pathogenic species V. parahaemolyticus, V. owensii and V. campbellii were detected, and especially in V. parahaemolyticus, various pathogenicity factors were present. A reduced salinity may therefore pose a higher risk of disease outbreaks in shrimp RAS. Because some of the detected pathogenicity factors are relevant for human health, this might also affect food safety. In order to produce healthy shrimp as a safe food for human consumption, maintaining high water salinities seems to be recommendable.
Collapse
Affiliation(s)
- Julia Bauer
- Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Felix Teitge
- Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Lisa Neffe
- Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Mikolaj Adamek
- Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Arne Jung
- Clinic for Poultry, University of Veterinary Medicine Hannover, Hannover, Germany
| | | | - Dieter Steinhagen
- Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Verena Jung-Schroers
- Fish Disease Research Unit, University of Veterinary Medicine Hannover, Hannover, Germany
| |
Collapse
|
44
|
Preikschas P, Bauer J, Knemeyer K, Naumann d'Alnoncourt R, Kraehnert R, Rosowski F. Formation, dynamics, and long-term stability of Mn- and Fe-promoted Rh/SiO 2 catalysts in CO hydrogenation. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00421b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Fe servers as an electronic modifier on Rh/SiO2 through in situ RhFe nanoalloy formation, whereas Mn is more likely a structural modifier and does not substantially change Rh's intrinsic product spectrum.
Collapse
Affiliation(s)
- Phil Preikschas
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, 10623 Berlin, Germany
| | - Julia Bauer
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, 10623 Berlin, Germany
| | - Kristian Knemeyer
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, 10623 Berlin, Germany
| | | | - Ralph Kraehnert
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, 10623 Berlin, Germany
| | - Frank Rosowski
- BasCat, UniCat BASF JointLab, Technische Universität Berlin, 10623 Berlin, Germany
- Process Research and Chemical Engineering, Heterogeneous Catalysis, BASF SE, 67056 Ludwigshafen, Germany
| |
Collapse
|
45
|
Xia R, Vlcek J, Bauer J, Kääb S, Ishikawa-Ankerhold H, van den Heuvel DA, Schulz C, Massberg S, Clauss S. Whole-Mount Immunofluorescence Staining, Confocal Imaging and 3D Reconstruction of the Sinoatrial and Atrioventricular Node in the Mouse. J Vis Exp 2020. [PMID: 33427243 DOI: 10.3791/62058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 10/31/2022] Open
Abstract
The electrical signal physiologically generated by pacemaker cells in the sinoatrial node (SAN) is conducted through the conduction system, which includes the atrioventricular node (AVN), to allow excitation and contraction of the whole heart. Any dysfunction of either SAN or AVN results in arrhythmias, indicating their fundamental role in electrophysiology and arrhythmogenesis. Mouse models are widely used in arrhythmia research, but the specific investigation of SAN and AVN remains challenging. The SAN is located at the junction of the crista terminalis with the superior vena cava and AVN is located at the apex of the triangle of Koch, formed by the orifice of the coronary sinus, the tricuspid annulus, and the tendon of Todaro. However, due to the small size, visualization by conventional histology remains challenging and it does not allow the study of SAN and AVN within their 3D environment. Here we describe a whole-mount immunofluorescence approach that allows the local visualization of labelled mouse SAN and AVN. Whole-mount immunofluorescence staining is intended for smaller sections of tissue without the need for manual sectioning. To this purpose, the mouse heart is dissected, with unwanted tissue removed, followed by fixation, permeabilization and blocking. Cells of the conduction system within SAN and AVN are then stained with an anti-HCN4 antibody. Confocal laser scanning microscopy and image processing allow differentiation between nodal cells and working cardiomyocytes, and to clearly localize SAN and AVN. Furthermore, additional antibodies can be combined to label other cell types as well, such as nerve fibers. Compared to conventional immunohistology, whole-mount immunofluorescence staining preserves the anatomical integrity of the cardiac conduction system, thus allowing the investigation of AVN; especially so into their anatomy and interactions with the surrounding working myocardium and non-myocyte cells.
Collapse
Affiliation(s)
- Ruibing Xia
- University Hospital Munich, Department of Medicine I, Ludwig Maximilian University Munich; Walter Brendel Center of Experimental Medicine, Ludwig Maximilian University Munich; German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance;
| | - Julia Vlcek
- University Hospital Munich, Department of Medicine I, Ludwig Maximilian University Munich; Walter Brendel Center of Experimental Medicine, Ludwig Maximilian University Munich
| | - Julia Bauer
- University Hospital Munich, Department of Medicine I, Ludwig Maximilian University Munich; Walter Brendel Center of Experimental Medicine, Ludwig Maximilian University Munich; German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance
| | - Stefan Kääb
- University Hospital Munich, Department of Medicine I, Ludwig Maximilian University Munich; German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance
| | - Hellen Ishikawa-Ankerhold
- University Hospital Munich, Department of Medicine I, Ludwig Maximilian University Munich; Walter Brendel Center of Experimental Medicine, Ludwig Maximilian University Munich
| | - Dominic Adam van den Heuvel
- University Hospital Munich, Department of Medicine I, Ludwig Maximilian University Munich; Walter Brendel Center of Experimental Medicine, Ludwig Maximilian University Munich
| | - Christian Schulz
- University Hospital Munich, Department of Medicine I, Ludwig Maximilian University Munich; Walter Brendel Center of Experimental Medicine, Ludwig Maximilian University Munich; German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance
| | - Steffen Massberg
- University Hospital Munich, Department of Medicine I, Ludwig Maximilian University Munich; Walter Brendel Center of Experimental Medicine, Ludwig Maximilian University Munich; German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance
| | - Sebastian Clauss
- University Hospital Munich, Department of Medicine I, Ludwig Maximilian University Munich; Walter Brendel Center of Experimental Medicine, Ludwig Maximilian University Munich; German Center for Cardiovascular Research (DZHK), Partner Site Munich, Munich Heart Alliance
| |
Collapse
|
46
|
Rushton A, Elmas K, Bauer J, Bell J. Identifying systematised, interdisciplinary actions as alternatives to individualised, specialist nutrition care practices - A nominal group technique approach. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.848] [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: 11/28/2022]
|
47
|
Findlay M, White K, Stapleton N, Bauer J. Is sarcopenia a predictor of prognosis for patients with head and neck cancer undergoing radiotherapy of curative intent? a systematic review and meta-analysis. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
48
|
Gramlich L, Dhaliwal R, Laviano A, de van der Schueren M, Bauer J, Findlay M, Martin L, Widaman A. Nutrition practices around surgery for head & neck and esophageal cancer: results from the international nutrition audit in foregut tumors (inform). Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.461] [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: 11/28/2022]
|
49
|
Ye X, Chang Y, Findlay M, Brown T, Bauer J. Effct of route and timing of enteral nutrition support on tube feeding duration, tube-related complications and dysphagia in patients with head and neck cancer undergoing treatment: a systematic review. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.787] [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: 10/23/2022]
|
50
|
Nadalin A, Denis-Robichaud J, Madureira AML, Burnett TA, Bauer J, Vasconcelos JLM, Pohler KG, Crespilho AM, Cerri RLA. Technical note: Validation of an in-house bovine serum enzyme immunoassay for progesterone measurement. J Dairy Sci 2020; 104:2455-2462. [PMID: 33246626 DOI: 10.3168/jds.2020-18824] [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: 05/01/2020] [Accepted: 08/18/2020] [Indexed: 11/19/2022]
Abstract
Measuring circulating progesterone (P4) of dairy cows is a key component of many research studies dealing with basic and applied reproduction physiology. The gold standard in dairy cows for the measurement of P4 in serum is radioimmunoassay (RIA), but it generates radioactive waste and requires licensed facilities. The purpose of this study was to develop and validate an in-house competitive enzyme immunoassay (EIA) to measure the P4 concentration in serum of dairy cattle. The secondary objective was to validate a commercial EIA. In the present study, a competitive EIA was developed using commercially available antibodies and conjugates. Ninety-six well microtiter plates were coated with the secondary antibody and incubated overnight. Following a washing step, the wells were blocked using the primary antibody. Serum samples were prepared by first extracting P4 using petroleum ether, then diluted in working conjugate solution. Samples were pipetted into the coated and blocked plates, then the matching HRP conjugate label (P4-3-HRP, East Coast Bio, North Berwick, ME) was added. The plates were incubated for 2 h, then washed. The substrate solution was added, and the plate was incubated up to 1 h at room temperature in the dark until a blue color had developed. A stop solution was added, and the optical density measured on a microplate reader was set at 450 nm. The binding proportion was calculated by a visible spectrum absorbance reader, and the amount of P4 was calculated using a log-logit regression line. The commercial EIA was executed as suggested by the manufacturer. The validation of the in-house EIA was done by calculating the inter- and intraassay coefficients of variation (CV) and evaluating the parallelism of diluted samples. The results from the in-house and commercial EIA were also compared with the ones from the RIA graphically (scatterplots and Bland-Altman plots) and statistically, using the Spearman correlation coefficient (r) and the Cohen's kappa statistics using a threshold of 1.0 ng/mL (κ). For the in-house EIA, the intraassay CV were all <10%, but the interassay for samples with small and large P4 concentration had CV of 12.5 and 11.0%, respectively. The correlations between the results from the EIA and the RIA were strong (in-house: r = 0.90; commercial: r = 0.83). At small concentrations (<1.0 ng/mL), however, the correlation with the gold standard was weak (in-house: r = 0.27; commercial: r = 0.14). This was likely due to the lack of accuracy at small concentrations, also shown by the absence of parallelism in samples ≤0.4 ng/mL. In conclusion, results from both the in-house and commercial EIA strongly correlated with the gold standard, but less so at smaller concentrations. The in-house EIA offers good accuracy to measure P4 in samples with a concentration >0.4 ng/mL, and a perfect agreement with RIA using a threshold of 1.0 ng/mL.
Collapse
Affiliation(s)
- A Nadalin
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
| | - J Denis-Robichaud
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada V6T 1Z4; Independent researcher, Amqui, QC, Canada G5J 2N5
| | - A M L Madureira
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
| | - T A Burnett
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
| | - J Bauer
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
| | - J L M Vasconcelos
- Department of Animal Production, São Paulo State University, Botucatu, Brazil 18168-000
| | - K G Pohler
- Department of Animal Science, Texas A&M University, College Station 77843
| | - A M Crespilho
- Faculty of Veterinary Medicine, Santo Amaro University, São Paulo, Brazil 04743-030
| | - R L A Cerri
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada V6T 1Z4.
| |
Collapse
|