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Grass D, Wrzaczek S, Caulkins JP, Feichtinger G, Hartl RF, Kort PM, Kuhn M, Prskawetz A, Sanchez-Romero M, Seidl A. Riding the waves from epidemic to endemic: Viral mutations, immunological change and policy responses. Theor Popul Biol 2024; 156:46-65. [PMID: 38310975 DOI: 10.1016/j.tpb.2024.02.002] [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: 09/15/2022] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 02/06/2024]
Abstract
Nonpharmaceutical interventions (NPI) are an important tool for countering pandemics such as COVID-19. Some are cheap; others disrupt economic, educational, and social activity. The latter force governments to balance the health benefits of reduced infection and death against broader lockdown-induced societal costs. A literature has developed modeling how to optimally adjust lockdown intensity as an epidemic evolves. This paper extends that literature by augmenting the classic SIR model with additional states and flows capturing decay over time in vaccine-conferred immunity, the possibility that mutations create variants that erode immunity, and that protection against infection erodes faster than protecting against severe illness. As in past models, we find that small changes in parameter values can tip the optimal response between very different solutions, but the extensions considered here create new types of solutions. In some instances, it can be optimal to incur perpetual epidemic waves even if the uncontrolled infection prevalence would settle down to a stable intermediate level.
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Affiliation(s)
- D Grass
- International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria; Research Group Economics, Institute of Statistics and Mathematical Methods in Economics, TU Wien, Vienna, Austria
| | - S Wrzaczek
- International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria; Wittgenstein Centre for Demography and Global Human Capital (IIASA, VID/OeAW, University of Vienna), Austria.
| | - J P Caulkins
- Heinz College, Carnegie Mellon University, Pittsburgh, USA
| | - G Feichtinger
- Wittgenstein Centre for Demography and Global Human Capital (IIASA, VID/OeAW, University of Vienna), Austria; Research Group Variational Analysis, Dynamics & Operations Research, Institute of Statistics and Mathematical Methods in Economics, TU Wien, Vienna, Austria
| | - R F Hartl
- Department of Business Decisions and Analytics, University of Vienna, Vienna, Austria
| | - P M Kort
- Tilburg School of Economics and Management, Tilburg University, Tilburg, Netherlands
| | - M Kuhn
- International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria; Wittgenstein Centre for Demography and Global Human Capital (IIASA, VID/OeAW, University of Vienna), Austria
| | - A Prskawetz
- International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria; Wittgenstein Centre for Demography and Global Human Capital (IIASA, VID/OeAW, University of Vienna), Austria; Research Group Economics, Institute of Statistics and Mathematical Methods in Economics, TU Wien, Vienna, Austria
| | - M Sanchez-Romero
- International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria; Research Group Economics, Institute of Statistics and Mathematical Methods in Economics, TU Wien, Vienna, Austria; Vienna Institute of Demography (VID), Austrian Academy of Sciences (OeAW), Vienna, Austria
| | - A Seidl
- Department of Business Decisions and Analytics, University of Vienna, Vienna, Austria; Faculty of Management, Seeburg Castle University, Seekirchen am Wallersee, Austria
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Caulkins JP, Grass D, Feichtinger G, Hartl RF, Kort PM, Kuhn M, Prskawetz A, Sanchez-Romero M, Seidl A, Wrzaczek S. The hammer and the jab: Are COVID-19 lockdowns and vaccinations complements or substitutes? Eur J Oper Res 2023; 311:233-250. [PMID: 37342758 PMCID: PMC10131897 DOI: 10.1016/j.ejor.2023.04.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 04/19/2023] [Indexed: 06/23/2023]
Abstract
The COVID-19 pandemic has devastated lives and economies around the world. Initially a primary response was locking down parts of the economy to reduce social interactions and, hence, the virus' spread. After vaccines have been developed and produced in sufficient quantity, they can largely replace broad lock downs. This paper explores how lockdown policies should be varied during the year or so gap between when a vaccine is approved and when all who wish have been vaccinated. Are vaccines and lockdowns substitutes during that crucial time, in the sense that lockdowns should be reduced as vaccination rates rise? Or might they be complementary with the prospect of imminent vaccination increasing the value of stricter lockdowns, since hospitalization and death averted then may be permanently prevented, not just delayed? We investigate this question with a simple dynamic optimization model that captures both epidemiological and economic considerations. In this model, increasing the rate of vaccine deployment may increase or reduce the optimal total lockdown intensity and duration, depending on the values of other model parameters. That vaccines and lockdowns can act as either substitutes or complements even in a relatively simple model casts doubt on whether in more complicated models or the real world one should expect them to always be just one or the other. Within our model, for parameter values reflecting conditions in developed countries, the typical finding is to ease lockdown intensity gradually after substantial shares of the population have been vaccinated, but other strategies can be optimal for other parameter values. Reserving vaccines for those who have not yet been infected barely outperforms simpler strategies that ignore prior infection status. For certain parameter combinations, there are instances in which two quite different policies can perform equally well, and sometimes very small increases in vaccine capacity can tip the optimal solution to one that involves much longer and more intense lockdowns.
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Affiliation(s)
- J P Caulkins
- Heinz College, Carnegie Mellon University, Pittsburgh, USA
| | - D Grass
- International Institute for Applied Systems Analysis (IIASA), Schlossplatz 1, Laxenburg 2361, Austria
| | - G Feichtinger
- Department for Operations Research and Control Systems, Institute of Statistics and Mathematical Methods in Economics, Vienna University of Technology, Vienna, Austria
| | - R F Hartl
- Department of Business Decisions and Analytics, University of Vienna, Vienna, Austria
| | - P M Kort
- Tilburg School of Economics and Management, Tilburg University, Tilburg, Netherlands
| | - M Kuhn
- International Institute for Applied Systems Analysis (IIASA), Schlossplatz 1, Laxenburg 2361, Austria
- Wittgenstein Centre for Demography and Global Human Capital (IIASA, VID/OeAW, University of Vienna), Austria
| | - A Prskawetz
- International Institute for Applied Systems Analysis (IIASA), Schlossplatz 1, Laxenburg 2361, Austria
- Wittgenstein Centre for Demography and Global Human Capital (IIASA, VID/OeAW, University of Vienna), Austria
- Research Group Economics, Institute of Statistics and Mathematical Methods in Economics, Vienna University of Technology, Vienna, Austria
| | - M Sanchez-Romero
- International Institute for Applied Systems Analysis (IIASA), Schlossplatz 1, Laxenburg 2361, Austria
- Research Group Economics, Institute of Statistics and Mathematical Methods in Economics, Vienna University of Technology, Vienna, Austria
| | - A Seidl
- Department of Business Decisions and Analytics, University of Vienna, Vienna, Austria
| | - S Wrzaczek
- International Institute for Applied Systems Analysis (IIASA), Schlossplatz 1, Laxenburg 2361, Austria
- Wittgenstein Centre for Demography and Global Human Capital (IIASA, VID/OeAW, University of Vienna), Austria
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Kiss I, Kuhn M, Hrusak K, Buchler T. Incidence of fatigue associated with immune checkpoint inhibitors in patients with cancer: a meta-analysis. ESMO Open 2022; 7:100474. [PMID: 35576697 PMCID: PMC9271472 DOI: 10.1016/j.esmoop.2022.100474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Received: 01/30/2022] [Revised: 03/11/2022] [Accepted: 03/26/2022] [Indexed: 12/11/2022] Open
Abstract
Background Fatigue is one of the most common adverse effects associated with cancer immunotherapy using checkpoint inhibitors (CPIs). Because treatment-related fatigue also frequently occurs in patients treated with non-immunological therapies, our study aimed to compare the incidence of fatigue in CPI-treated patients with that associated with non-immune therapies in randomised trials. Methods PubMed and ClinicalTrials.gov were searched for phase III studies using a CPI alone or in combination with chemotherapy or non-immunologic targeted therapy in the experimental arm and control arm using inactive therapies such as placebo or observation, chemotherapy, or non-immunologic targeted therapy. Adverse events listed in the full texts as well as those available from clinicaltrials.gov were reviewed for all identified studies. Results A total of 60 studies involving 41 435 patients were included in the analysis. All-grade fatigue was reported in 30.4% of patients [95% confidence interval (CI) 29.9% to 31.0%] in the immunotherapy arms of the analysed studies. Using anti-programmed cell death protein 1 agents as reference, the odds ratio (OR) for fatigue was significantly higher both for anti-cytotoxic T lymphocyte-associated antigen 4 agents (OR 1.46, 95% CI 1.04-2.04) and the combination of anti-cytotoxic T lymphocyte-associated antigen 4 and anti-programmed cell death protein agents (OR 1.43, 95% CI 1.12-1.83). Fatigue was significantly less likely to occur in patients treated with CPI compared with patients receiving chemotherapy (OR 0.79, 95% CI 0.73-0.85), but significantly was more common in patients receiving the combination of CPI/chemotherapy compared with patients receiving chemotherapy alone (OR 1.12, 95% CI 1.03-1.22). Conclusions Although immunotherapy using CPIs was associated with treatment-related fatigue, the occurrence of all-grade fatigue was significantly higher in patients treated with chemotherapy compared with patients receiving CPIs. The risk of fatigue was higher for CPI/chemotherapy combinations than for chemotherapy alone. These results suggest that although the effects of CPIs and chemotherapy are additive, chemotherapy was the dominant cause of treatment-related fatigue in the analysed trials. Fatigue is a common adverse event associated with cancer immunotherapy but also with other therapies and with cancer itself. This meta-analysis analysed the incidence of fatigue reported in phase III trials of checkpoint inhibitors. Fatigue was more common in patients treated with chemotherapy compared with patients receiving checkpoint inhibitors. Chemotherapy was the dominant cause of fatigue in combinations of chemotherapy and checkpoint inhibitors.
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Affiliation(s)
- I Kiss
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - M Kuhn
- Institute of Biostatistics and Analyses Ltd, Masaryk University, Brno, Czech Republic
| | - K Hrusak
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
| | - T Buchler
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic.
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Hu KX, Awange JL, Kuhn M. Testing a knowledge-based approach for inferring spatio-temporal characteristics of groundwater in the Australian State of Victoria. Sci Total Environ 2022; 821:153113. [PMID: 35063510 DOI: 10.1016/j.scitotenv.2022.153113] [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: 11/17/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Groundwater spatio-temporal characteristics are important information for groundwater development and management. However, such information is usually insufficient or even unavailable in many regions around the world due to insufficient or even lack of in-situ data such as from boreholes. Recently, a knowledge-based approach was proposed to infer 'where' and 'when' to find groundwater using Lake Victoria Basin (LVB) as an example for data-deficient regions. In this knowledge-based approach, groundwater model and inversion analysis of groundwater impact factors are used to infer groundwater storage potential and recharge timing. In the LVB's case, only 10 borehole data were used to test the spatio-temporal behaviours of groundwater, which are insufficient. In this contribution, therefore, using the Australian State of Victoria as an example, with over 15,000 boreholes data, the performance of the same knowledge-based approach is further tested in a well-controlled area. The results indicate that the knowledge-based approach is able to correctly infer regions with large groundwater storage potential suitable for extraction. The recharge timing of groundwater is also correctly indicated as the results show consistency with the borehole data. This provides further evidence of the reliability of the knowledge-based approach for inferring spatio-temporal characteristics of groundwater.
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Affiliation(s)
- K X Hu
- School of Earth and Planetary Sciences, Spatial Science Discipline, Curtin University, Perth, Australia.
| | - J L Awange
- School of Earth and Planetary Sciences, Spatial Science Discipline, Curtin University, Perth, Australia
| | - M Kuhn
- School of Earth and Planetary Sciences, Spatial Science Discipline, Curtin University, Perth, Australia
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Kuhn M, Gonzalez E, Weil L, Izguttinov A, Walker S. Effectiveness of Child-Focused Interventions for Externalizing Behavior: a Rapid Evidence Review. Res Child Adolesc Psychopathol 2022; 50:987-1009. [PMID: 35212851 DOI: 10.1007/s10802-022-00904-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2022] [Indexed: 10/19/2022]
Abstract
Parent behavior management training (BMT) is well established as an effective, evidence-based treatment for children with externalizing behavior. Despite the wealth of data supporting BMT, many community providers use a variety of child-focused and non-directive interventions to target behavior problems. There is lack of clarity as to whether the evidence supporting child-focused externalizing treatments is sufficiently compelling to support offering these treatments rather than or in addition to BMT. This rapid evidence review compares the effectiveness of BMT with several common child-focused interventions for externalizing behavior including cognitive behavioral (CBT), social skill (SS), and play/dynamic (PT) approaches. PubMed, PsychINFO, and Web of Science were searched for English-language articles from year 2000 onwards for each intervention type. Inclusion criteria were child age (12 and under), presence of a child-focused behavioral treatment condition, and externalizing behavior as an outcome variable. A total of 30 studies met inclusion criteria and were coded (13 CBT, 10 SS, 7 PT). Results supported social skills interventions with accompanying BMT as effective in improving externalizing problems, with generally moderate effect sizes. Individual social skills interventions were promising but needing further evaluation compared to treatment as usual. CBT treatments with and without accompanying BMT showed moderate effects over waitlist but produced less consistently significant effects compared to more robust controls. Play therapy approaches showed inconsistent effects and require further evaluation. This review supports social skills plus BMT treatments as a child-focused intervention with probable efficacy for child externalizing problems. Implications for policy and community practice are discussed.
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Affiliation(s)
- M Kuhn
- Seattle Children's Hospital and Research Institute, Seattle, WA, USA. .,University of Washington Child and Adolescent Psychiatry, Seattle, WA, USA.
| | - E Gonzalez
- Seattle Children's Hospital and Research Institute, Seattle, WA, USA.,University of Washington Child and Adolescent Psychiatry, Seattle, WA, USA
| | - L Weil
- University of Washington Evidence Based Practice Institute, Seattle, WA, USA
| | - A Izguttinov
- University of Washington Evidence Based Practice Institute, Seattle, WA, USA
| | - S Walker
- University of Washington Evidence Based Practice Institute, Seattle, WA, USA
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Hu KX, Awange JL, Kuhn M, Nanteza J. Inference of the spatio-temporal variability and storage potential of groundwater in data-deficient regions through groundwater models and inversion of impact factors on groundwater, as exemplified by the Lake Victoria Basin. Sci Total Environ 2021; 800:149355. [PMID: 34399330 DOI: 10.1016/j.scitotenv.2021.149355] [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: 12/14/2020] [Revised: 06/24/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
Groundwater is an important resource for supporting domestic water use for people's livelihoods and for maintaining ecosystems. Borehole observations provide the first-hand data that characterise the fluctuation, depth, and aquifer conditions of the groundwater. Unfortunately, such observations are not available or are insufficient for scientific use in many regions. Taking the Lake Victoria Basin (LVB) as an example of data-deficient regions, this study proposes a simple knowledge-based approach that uses the Global Land Data Assimilation System (GLDAS) Catchment Land Surface Model (CLSM) for the main data, with rainfall, hydrological, topographical and geological datasets as supports, by which to infer the spatio-temporal variability and storage potential of groundwater. The method is based on analysis and inversion of impact factors on groundwater, and the feasibility of such a method is proven by showing that the groundwater results from GLDAS CLSM can correctly indicate the seasonality, as well as the link to topographical and geological features. For example, both results from the water balance equation (WBE) and GLDAS CLSM indicate that there are two groundwater recharge seasons in the basin, e.g., March to May and September to November. Compared to the eastern side of the LVB, the western side has mountains blocking surface runoff, and thus, reasonably, has larger storage potential estimates in GLDAS CLSM. Due to the low degree of weathering of the basement rocks, it is expected that there is only small storage potential and variation of groundwater in the southeastern parts of the LVB. GLDAS CLSM also correctly reflects this behaviour. Additionally, the largest groundwater storage potential over the LVB is found in regions near the Kagera River and the western shoreline, since it associates with unconsolidated rocks and behaviours of large groundwater recharge from GLDAS CSLM during the wet year of 2006. The major limitation of this knowledge-based method is that the uncertainty in terms of magnitude on GLDAS CLSM groundwater changes cannot be assessed, in addition to the fact that the reliability of the results cannot be quantified in terms of specific numbers. Therefore, the results and interpretation of groundwater behaviours using such methods can only be a guide for 'where' and 'when' to find groundwater.
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Affiliation(s)
- K X Hu
- School of Earth and Planetary Sciences, Spatial Science Discipline, Curtin University, Perth, Australia.
| | - J L Awange
- School of Earth and Planetary Sciences, Spatial Science Discipline, Curtin University, Perth, Australia; Geodetic Institute, Karlsruhe Institute of Technology, Engler-Strasse 7, D-76131 Karlsruhe, Germany
| | - M Kuhn
- School of Earth and Planetary Sciences, Spatial Science Discipline, Curtin University, Perth, Australia
| | - J Nanteza
- Department of Geography, Geo-Informatics and Climatic Sciences, Makerere University, Uganda
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Saleem A, Awange JL, Kuhn M, John B, Hu K. Impacts of extreme climate on Australia's green cover (2003-2018): A MODIS and mascon probe. Sci Total Environ 2021; 766:142567. [PMID: 33097275 DOI: 10.1016/j.scitotenv.2020.142567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 08/13/2020] [Accepted: 09/21/2020] [Indexed: 06/11/2023]
Abstract
Australia as a continent represents a semi-arid environment that is generally water-limited. Changes in rainfall pattern will inevitably occur due to rising temperatures caused by climate change, which has a direct impact on the distribution of Australia's vegetation (green cover). As variability in rainfall continues to increase, i.e., in frequency and/or magnitude, due to climate change, extreme climate events such as droughts are predicted to become more pervasive and severe that will have an adverse effect on vegetation. This study investigates the effects of extreme climate on Australia's green cover during 2003-2018 for the end of rainy seasons of April and October in the northern and southern parts, respectively, to (i) determine the state of vegetation and its changes, (ii) identify "hotspots", i.e., regions that constantly experienced statistically significant decrease in NDVI, and (iii), relate changes in the identified hotspots to GRACE-hydrological changes. These are achieved through the exploitation of the statistical tools of Principal Component Analysis (PCA) and Mann-Kendel Test on Gravity Recovery and Climate Experiment (GRACE) hydrological products on the one hand, and the utilization of Australia's rainfall product and Moderate Resolution Imaging Spectroradiometer Normalized Difference Vegetation Index (MODIS-NDVI) used here with its native spatial resolution of 0.002413∘ × 0.002413∘ on the other hand. Differences between 3-year intervals from 2003 to 2018 for both April and October datasets are used to quantify vegetation variations. Through area change analysis, the vegetation differences (2003-2018) indicate that April exhibited larger increase (13.77% of total vegetation area) than decrease (7.83%) compared to October, which experienced slightly larger decrease (9.41%) than increase (8.71%). South Australia and Western Australia emerge as "hotspots" in which vegetation statistically decreased in October, with no noticeable change in April. GRACE-based hydrological changes in both hotspots reflect a decreasing trend (2003-2009) and increasing trend (2009-2012) that peaks in 2011, which then transitions towards a gradually decreasing trend after 2012. Australia-wide climate variability (ENSO and IOD) influenced vegetation variations during the data period 2003 to 2018.
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Affiliation(s)
- A Saleem
- School of Earth and Planetary Science, Spatial Science Discipline, Curtin University, Perth, Australia.
| | - J L Awange
- School of Earth and Planetary Science, Spatial Science Discipline, Curtin University, Perth, Australia; Geodetic Institute, Karlsruhe Institute of Technology, Engler-Strasse 7, D-76131, Karlsruhe, Germany
| | - M Kuhn
- School of Earth and Planetary Science, Spatial Science Discipline, Curtin University, Perth, Australia
| | - B John
- School of Earth and Planetary Science, Spatial Science Discipline, Curtin University, Perth, Australia
| | - K Hu
- School of Earth and Planetary Science, Spatial Science Discipline, Curtin University, Perth, Australia
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Villanueva-Perez P, Fleckenstein H, Prasciolu M, Murray KT, Domaracký M, Gregorič K, Mariani V, Gelisio L, Kuhn M, Hannappel J, Yefanov O, Ivanov N, Sarrou I, Pennicard D, Becker J, von Zimmermann M, Gutowski O, Dippel AC, Chapman HN, Bajt S. Scanning Compton X-ray microscopy. Opt Lett 2021; 46:1920-1923. [PMID: 33857104 DOI: 10.1364/ol.421232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
X-ray microscopy offers the opportunity to image biological and radiosensitive materials without special sample preparations, bridging optical and electron microscopy capabilities. However, the performance of such microscopes, when imaging radiosensitive samples, is not limited by their intrinsic resolution, but by the radiation damage induced on such samples. Here, we demonstrate a novel, to the best of our knowledge, radio-efficient microscope, scanning Compton X-ray microscopy (SCXM), which uses coherently and incoherently (Compton) scattered photons to minimize the deposited energy per unit of mass for a given imaging signal. We implemented SCXM, using lenses capable of efficiently focusing 60 keV X-ray photons into the sub-micrometer scale, and probe its radio-efficient capabilities. SCXM, when implemented in high-energy diffraction-limited storage rings, e.g., European Synchrotron Radiation Facility Extremely Brilliant Source and PETRA IV, will open the opportunity to explore the nanoscale of unstained, unsectioned, and undamaged radiosensitive materials.
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Vornweg J, Gläser S, Ahmad-Anwar M, Zimmer AD, Kuhn M, Hörer S, Korenke GC, Grothaus J, Ott H, Fischer J. Identification of compound heterozygous mutations in AP1B1 leading to the newly described recessive keratitis-ichthyosis-deafness (KIDAR) syndrome. Br J Dermatol 2021; 184:1190-1192. [PMID: 33452671 DOI: 10.1111/bjd.19815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 01/06/2021] [Accepted: 01/11/2021] [Indexed: 11/27/2022]
Affiliation(s)
- J Vornweg
- Institute of Human Genetics, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - S Gläser
- Institute of Human Genetics, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - M Ahmad-Anwar
- Institute of Human Genetics, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - A D Zimmer
- Institute of Human Genetics, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - M Kuhn
- Genetikum, Neu-Ulm, Germany
| | - S Hörer
- Institute of Human Genetics, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - G C Korenke
- Department of Pediatric Neurology, Klinikum Oldenburg, Oldenburg, Germany
| | - J Grothaus
- Department of Pediatric Dermatology and Allergology, Center for Epidermolysis Bullosa, Children's Hospital Auf der Bult, Hanover, Germany
| | - H Ott
- Department of Pediatric Dermatology and Allergology, Center for Epidermolysis Bullosa, Children's Hospital Auf der Bult, Hanover, Germany
| | - J Fischer
- Institute of Human Genetics, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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Dietz J, Spengler U, Müllhaupt B, Schulze Zur Wiesch J, Piecha F, Mauss S, Seegers B, Hinrichsen H, Antoni C, Wietzke-Braun P, Peiffer KH, Berger A, Matschenz K, Buggisch P, Backhus J, Zizer E, Boettler T, Neumann-Haefelin C, Semela D, Stauber R, Berg T, Berg C, Zeuzem S, Vermehren J, Sarrazin C, Giostra E, Berning M, Hampe J, De Gottardi A, Rauch A, Semmo N, Discher T, Trauth J, Fischer J, Gress M, Günther R, Heinzow H, Schmidt J, Herrmann A, Stallmach A, Hilgard G, Deterding K, Lange C, Ciesek S, Wedemeyer H, Hoffmann D, Klinker H, Schulze P, Kocheise F, Müller-Schilling M, Kodal A, Kremer A, Ganslmayer M, Siebler J, Lammert F, Rissland J, Löbermann M, Götze T, Canbay A, Lohse A, von Felden J, Jordan S, Maieron A, Moradpour D, Chave JP, Moreno C, Müller T, Muche M, Epple HJ, Port K, von Hahn T, Cornberg M, Manns M, Reinhardt L, Ellenrieder V, Rockstroh J, Schattenberg J, Sprinzl M, Galle P, Roeb E, Steckstor M, Schmiegel W, Brockmeyer N, Seufferlein T, Stremmel W, Strey B, Thimme R, Teufel A, Vogelmann R, Ebert M, Tomasiewicz K, Trautwein C, Tacke F, Koenen T, Weber T, Zachoval R, Mayerle J, Raziorrouh B, Angeli W, Beckebaum S, Doberauer C, Durmashkina E, Hackelsberger A, Erhardt A, Garrido-Lüneburg A, Gattringer H, Genné D, Gschwantler M, Gundling F, Hametner S, Schöfl R, Hartmann C, Heyer T, Hirschi C, Jussios A, Kanzler S, Kordecki N, Kraus M, Kullig U, Wollschläger S, Magenta L, Beretta-Piccoli BT, Menges M, Mohr L, Muehlenberg K, Niederau C, Paulweber B, Petrides A, Pinkernell M, Piso R, Rambach W, Reiser M, Riecken B, Rieke A, Roth J, Schelling M, Schlee P, Schneider A, Scholz D, Schott E, Schuchmann M, Schulten-Baumer U, Seelhoff A, Stich A, Stickel F, Ungemach J, Walter E, Weber A, Winzer T, Abels W, Adler M, Audebert F, Baermann C, Bästlein E, Barth R, Barthel K, Becker W, Behrends J, Benninger J, Berger F, Berzow D, Beyer T, Bierbaum M, Blaukat O, Bodtländer A, Böhm G, Börner N, Bohr U, Bokemeyer B, Bruch H, Bucholz D, Burkhard O, Busch N, Chirca C, Delker R, Diedrich J, Frank M, Diehl M, Dienethal A, Dietel P, Dikopoulos N, Dreck M, Dreher F, Drude L, Ende K, Ehrle U, Baumgartl K, Emke F, Glosemeyer R, Felten G, Hüppe D, Fischer J, Fischer U, Frederking D, Frick B, Friese G, Gantke B, Geyer P, Schwind H, Glas M, Glaunsinger T, Goebel F, Göbel U, Görlitz B, Graf R, Gruber H, Härter G, Herder M, Heuchel T, Heuer S, Höffl KH, Hörster H, Sonne JU, Hofmann W, Holst F, Hunstiger M, Hurst A, Jägel-Guedes E, John C, Jung M, Kallinowski B, Kapzan B, Kerzel W, Khaykin P, Klarhof M, Klüppelberg U, Klugewitz K, Knapp B, Knevels U, Kochsiek T, Körfer A, Köster A, Kuhn M, Langekamp A, Künzig B, Link R, Littman M, Löhr H, Lutz T, Knecht G, Lutz U, Mainz D, Mahle I, Maurer P, Mayer C, Meister V, Möller H, Heyne R, Moritzen D, Mroß M, Mundlos M, Naumann U, Nehls O, Ningel K, Oelmann A, Olejnik H, Gadow K, Pascher E, Petersen J, Philipp A, Pichler M, Polzien F, Raddant R, Riedel M, Rietzler S, Rössle M, Rufle W, Rump A, Schewe C, Hoffmann C, Schleehauf D, Schmidt K, Schmidt W, Schmidt-Heinevetter G, Schmidtler-von Fabris J, Schnaitmann E, Schneider L, Schober A, Niehaus-Hahn S, Schwenzer J, Seidel T, Seitel G, Sick C, Simon K, Stähler D, Stenschke F, Steffens H, Stein K, Steinmüller M, Sternfeld T, Strey B, Svensson K, Tacke W, Teuber G, Teubner K, Thieringer J, Tomesch A, Trappe U, Ullrich J, Urban G, Usadel S, von Lucadou A, Weinberger F, Werheid-Dobers M, Werner P, Winter T, Zehnter E, Zipf A. Efficacy of Retreatment After Failed Direct-acting Antiviral Therapy in Patients With HCV Genotype 1-3 Infections. Clin Gastroenterol Hepatol 2021; 19:195-198.e2. [PMID: 31706062 DOI: 10.1016/j.cgh.2019.10.051] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 09/19/2019] [Accepted: 10/25/2019] [Indexed: 02/07/2023]
Abstract
Hepatitis C virus infection is causing chronic liver disease, cirrhosis, and hepatocellular carcinoma. By combining direct-acting antivirals (DAAs), high sustained virologic response rates (SVRs) can be achieved. Resistance-associated substitutions (RASs) are commonly observed after DAA failure, and especially nonstructural protein 5A (NS5A) RASs may impact retreatment options.1-3 Data on retreatment of DAA failure patients using first-generation DAAs are limited.4-7 Recently, a second-generation protease- and NS5A-inhibitor plus sofosbuvir (voxilaprevir/velpatasvir/sofosbuvir [VOX/VEL/SOF]) was approved for retreatment after DAA failure.8 However, this and other second-generation regimens are not available in many resource-limited countries or are not reimbursed by regular insurance, and recommendations regarding the selection of retreatment regimens using first-generation DAAs are very important. This study aimed to analyze patients who were re-treated with first-generation DAAs after failure of a DAA combination therapy.
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Affiliation(s)
- Julia Dietz
- Department of Internal Medicine 1, University Hospital Frankfurt, Goethe University, Frankfurt, and German Center for Infection Research (DZIF), External Partner Site, Frankfurt, Germany
| | - Ulrich Spengler
- Department of Internal Medicine I, University of Bonn, Bonn, and German Center for Infection Research (DZIF), Partner Site, Cologne-Bonn, Germany
| | - Beat Müllhaupt
- Swiss Hepato-Pancreato-Biliary Center and Department of Gastroenterology and Hepatology, University Hospital Zürich, Zürich, Switzerland
| | - Julian Schulze Zur Wiesch
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, and German Center for Infection Research (DZIF), Partner Site, Hamburg-Lübeck-Borstel-Riems, Germany
| | - Felix Piecha
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, and German Center for Infection Research (DZIF), Partner Site, Hamburg-Lübeck-Borstel-Riems, Germany
| | - Stefan Mauss
- Center for HIV and Hepatogastroenterology, Düsseldorf, Germany
| | - Barbara Seegers
- Gastroenterologisch-Hepatologisches Zentrum Kiel, Kiel, Germany
| | | | - Christoph Antoni
- Department of Internal Medicine II, University Hospital Mannheim, Mannheim, Germany
| | | | - Kai-Henrik Peiffer
- Department of Internal Medicine 1, University Hospital Frankfurt, Goethe University, Frankfurt, and German Center for Infection Research (DZIF), External Partner Site, Frankfurt, Germany
| | - Annemarie Berger
- Institute for Medical Virology, University Hospital Frankfurt, Frankfurt, Germany
| | | | - Peter Buggisch
- Institute for Interdisciplinary Medicine IFI, Hamburg, Germany
| | - Johanna Backhus
- Department of Internal Medicine I, Ulm University, Ulm, Germany
| | - Eugen Zizer
- Department of Internal Medicine I, Ulm University, Ulm, Germany
| | - Tobias Boettler
- Department of Medicine II, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Christoph Neumann-Haefelin
- Department of Medicine II, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - David Semela
- Division of Gastroenterology and Hepatology, Kantonsspital St Gallen, St Gallen, Switzerland
| | - Rudolf Stauber
- Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Thomas Berg
- Department of Gastroenterology and Rheumatology, University Hospital Leipzig, Leipzig, Germany
| | - Christoph Berg
- Department of Internal Medicine I, University of Tübingen, Tübingen, Germany
| | - Stefan Zeuzem
- Department of Internal Medicine 1, University Hospital Frankfurt, Goethe University, Frankfurt, and German Center for Infection Research (DZIF), External Partner Site, Frankfurt, Germany
| | - Johannes Vermehren
- Department of Internal Medicine 1, University Hospital Frankfurt, Goethe University, Frankfurt, and German Center for Infection Research (DZIF), External Partner Site, Frankfurt, Germany
| | - Christoph Sarrazin
- Department of Internal Medicine 1, University Hospital Frankfurt, Goethe University, Frankfurt, and German Center for Infection Research (DZIF), External Partner Site, Frankfurt, Germany; Medizinische Klinik 2, St Josefs-Hospital, Wiesbaden, Germany.
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Hu KX, Awange JL, Kuhn M, Saleem A. Spatio-temporal groundwater variations associated with climatic and anthropogenic impacts in South-West Western Australia. Sci Total Environ 2019; 696:133599. [PMID: 31461690 DOI: 10.1016/j.scitotenv.2019.133599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/24/2019] [Accepted: 07/24/2019] [Indexed: 06/10/2023]
Abstract
South-West Western Australia (SWWA) is a critical agricultural region that heavily relies on groundwater for domestic, agricultural and industrial use. However, the behaviours of groundwater associated with climate variability/change and anthropogenic impacts within this region are not well understood. This study investigates the spatio-temporal variability of groundwater in SWWA based on 2997 boreholes over the past 36 years (1980-2015). Results identify the decline in groundwater level (13 mm/month) located in the central coastal region of SWWA (i.e., north and south of Perth) to be caused by anthropogenic impacts (primary factor) and climate variability/change (secondary). In detail, anthropogenic impacts are mainly attributed to substantial groundwater abstraction, e.g., hotspots (identified by above 7 m/month groundwater level change) mostly occur in the central coastal region, as well as close to dams and mines. Impacts of climate variability/change indicate that coupled ENSO and positive IOD cause low-level rainfall in the coastal regions, subsequently, affecting groundwater recharge. In addition, correlation between groundwater and rainfall is significant at 0.748 over entire SWWA (at 95% confidence level). However, groundwater in northeastern mountainous regions hardly changes with rainfall because of very small amounts of rainfall (average 20-30 mm/month) in this region, potentially coupled with terrain and geological impacts. A marked division for groundwater bounded by the Darling and Gingin Scarps is found. This is likely due to the effects of the Darling fault, dams, central mountainous terrain and geology. For the region south of Perth and southern coastal regions, a hypothesis through multi-year analysis is postulated that rainfall of at least 60 and 65-70 mm/month, respectively, are required during the March-October rainfall period to recharge groundwater.
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Affiliation(s)
- K X Hu
- School of Earth and Planetary, Spatial Science Discipline, Curtin University, Perth, Australia.
| | - J L Awange
- School of Earth and Planetary, Spatial Science Discipline, Curtin University, Perth, Australia; Geodetic Institute, Karlsruhe Institute of Technology, Engler-Strasse 7, D-76131 Karlsruhe, Germany
| | - M Kuhn
- School of Earth and Planetary, Spatial Science Discipline, Curtin University, Perth, Australia
| | - A Saleem
- School of Earth and Planetary, Spatial Science Discipline, Curtin University, Perth, Australia
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Agutu NO, Awange JL, Ndehedehe C, Kirimi F, Kuhn M. GRACE-derived groundwater changes over Greater Horn of Africa: Temporal variability and the potential for irrigated agriculture. Sci Total Environ 2019; 693:133467. [PMID: 31634997 DOI: 10.1016/j.scitotenv.2019.07.273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/24/2019] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
Greater Horn of Africa (GHA) is projected to face negative impacts on per capita food production due to dwindling nature of water resources forced by climate change and rising population growth. The region has limited groundwater irrigated agriculture and also lacks groundwater monitoring infrastructure. This study (i) employs Independent Component Analysis (ICA) to localize Gravity Recovery and Climate Experiment (GRACE)-derived groundwater changes and analyses the corresponding temporal variabilities and their link to climate indices (Indian Ocean Dipole (IOD) and El Niño-Southern Oscillation (ENSO)), and (ii), explores the irrigation potentials of the localized groundwater. Monthly GRACE-derived groundwater changes showed similar temporal variability to WaterGap Hydrological Model (WGHM), i.e., a correlation of 0.7 (significant at 95% confidence level), highlighting GRACE's potential to provide GHA-wide changes in groundwater. Based on GHA aquifer location maps, the study associated the localized groundwater changes to nine major aquifers namely; Nubian sandstone, Karoo Carbonate, Upper Nile, Ethiopian highlands, Lake Tana region, Kenya-Somalia, Central Tanzania, Karoo sandstone, and Ruvuma. All temporal groundwater changes, except Nubian sandstone and Kenya-Somalia, showed an annual (cyclic) pattern indicating an annual (yearly) recharge cycle. Weak relationships with rainfall and both climate indices were noted. Maximum correlation occurred when rainfall preceded the temporal groundwater changes by several months. Based on water availability (from GRACE), water quality (indicated by the total dissolved substance) and dominant soil types, potential for groundwater irrigated agriculture results showed: low potentials for Nubian Sandstone and Kenya-Somalia areas; low to moderate potentials for Karoo Carbonate, Lake Tana region, central Tanzania, and Ruvuma; moderate to high potentials for Upper Nile and Karoo Sandstone; and high potential for Ethiopian highland. Even though the study has considered relatively short time period (10 years), these results are critical to the sustainable management of the region's groundwater resources and appropriate/informed policy formulation.
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Affiliation(s)
- N O Agutu
- School of Earth and Planetary Sciences, Spatial Sciences, Curtin University, Perth, Australia; Department of Geomatic Engineering and Geospatial Information Systems, JKUAT, Nairobi, Kenya.
| | - J L Awange
- School of Earth and Planetary Sciences, Spatial Sciences, Curtin University, Perth, Australia; Geodetic Institute, Karlsruhe Institute of Technology, Engler-Strasse 7, D-76131 Karlsruhe, Germany
| | - C Ndehedehe
- School of Earth and Planetary Sciences, Spatial Sciences, Curtin University, Perth, Australia; Australian Rivers Institute and Griffith School of Environment & Science, Griffith University, Nathan, Queensland 4111, Australia
| | - F Kirimi
- Department of Geomatic Engineering and Geospatial Information Systems, JKUAT, Nairobi, Kenya
| | - M Kuhn
- School of Earth and Planetary Sciences, Spatial Sciences, Curtin University, Perth, Australia
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13
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Vill K, Blaschek A, Gläser D, Kuhn M, Haack T, Alhaddad B, Wagner M, Kovacs-Nagy R, Tacke M, Gerstl L, Schroeder AS, Borggraefe I, Mueller C, Schlotter-Weigel B, Schoser B, Walter MC, Müller-Felber W. Early-Onset Myopathies: Clinical Findings, Prevalence of Subgroups and Diagnostic Approach in a Single Neuromuscular Referral Center in Germany. J Neuromuscul Dis 2019; 4:315-325. [PMID: 29172004 DOI: 10.3233/jnd-170231] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Early-onset myopathies are a heterogeneous group of neuromuscular diseases with broad clinical, genetic and histopathological overlap. The diagnostic approach has considerably changed since high throughput genetic methods (next generation sequencing, NGS) became available. OBJECTIVE We present diagnostic subgroups in a single neuromuscular referral center and describe an algorithm for the diagnostic work-up. METHODS The diagnostic approach of 98 index patients was retrospectively analysed. In 56 cases targeted sequencing of a known gene was performed, in 44 patients NGS was performed using large muscle specific panels, and in 12 individuals whole exome sequencing (WES) was undertaken. One patient was diagnosed via array CGH. Clinical features of all patients are provided. RESULTS The final diagnosis could be found in 63 out of 98 patients (64%) with molecular genetic analysis. In 55% targeted gene sequencing could establish the genetic diagnosis. However, this rate largely depended on the presence of distinct histological or clinical features. NGS (large myopathy-related panels and WES) revealed genetic diagnosis in 58.5% (52% and 67%, respectively). The genes detected by WES in our cohort of patients were all covered by the panels. Based on our findings we propose an algorithm for a practical diagnostic approach.Prevalences:MTM1- and LAMA2-patients are the two biggest subgroups, followed by SEPN1-, RYR1- and Collagen VI-related diseases. 31% of genetically confirmed cases represents a group with overlap between "congenital myopathies (CM)" and "congenital muscular dystrophies (CMD)". In 36% of the patients a specific genetic diagnosis could not be assigned. CONCLUSIONS A final diagnosis can be confirmed by high throughput genetic analysis in 58.5% of the cases, which is a higher rate than reported in the literature for muscle biopsy and should in many cases be considered as a first diagnostic tool. NGS cannot replace neuromuscular expertise and a close discussion with the geneticists on NGS is mandatory. Targeted candidate gene sequencing still plays a role in selected cases with highly suspicious clinical or histological features. There is a relevant clinical and genetic overlap between the entities CM and CMD.
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Affiliation(s)
- K Vill
- Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, Center for Neuromuscular Disorders in Childhood. Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Germany
| | - A Blaschek
- Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, Center for Neuromuscular Disorders in Childhood. Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Germany
| | - D Gläser
- genetikum® Center for Human Genetics, Neu-Ulm, Germany
| | - M Kuhn
- genetikum® Center for Human Genetics, Neu-Ulm, Germany
| | - T Haack
- Institute of Human Genetics, Technische Universität München, Munich, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany.,Institute of Human Genetics, University of Tübingen, Germany
| | - B Alhaddad
- Institute of Human Genetics, Technische Universität München, Munich, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - M Wagner
- Institute of Human Genetics, Technische Universität München, Munich, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany.,Institute für Neurogenomik, Helmholtz Zentrum München, Neuherberg, Germany
| | - R Kovacs-Nagy
- Institute of Human Genetics, Technische Universität München, Munich, Germany
| | - M Tacke
- Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, Center for Neuromuscular Disorders in Childhood. Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Germany
| | - L Gerstl
- Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, Center for Neuromuscular Disorders in Childhood. Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Germany
| | - A S Schroeder
- Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, Center for Neuromuscular Disorders in Childhood. Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Germany
| | - I Borggraefe
- Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, Center for Neuromuscular Disorders in Childhood. Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Germany
| | - C Mueller
- Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, Center for Neuromuscular Disorders in Childhood. Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Germany
| | - B Schlotter-Weigel
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-Universität, München, Munich, Germany
| | - B Schoser
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-Universität, München, Munich, Germany
| | - M C Walter
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-Universität, München, Munich, Germany
| | - W Müller-Felber
- Division of Pediatric Neurology, Developmental Medicine and Social Pediatrics, Center for Neuromuscular Disorders in Childhood. Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Germany
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Martinez A, Kuhn M, Briesen H, Hekmat D. Enhancing the X-ray contrast of polymeric biochromatography particles for three-dimensional imaging. J Chromatogr A 2019; 1590:65-72. [DOI: 10.1016/j.chroma.2018.12.065] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/21/2018] [Accepted: 12/29/2018] [Indexed: 10/27/2022]
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Khaki M, Hoteit I, Kuhn M, Forootan E, Awange J. Assessing data assimilation frameworks for using multi-mission satellite products in a hydrological context. Sci Total Environ 2019; 647:1031-1043. [PMID: 30180311 DOI: 10.1016/j.scitotenv.2018.08.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/24/2018] [Accepted: 08/03/2018] [Indexed: 06/08/2023]
Abstract
With a growing number of available datasets especially from satellite remote sensing, there is a great opportunity to improve our knowledge of the state of the hydrological processes via data assimilation. Observations can be assimilated into numerical models using dynamics and data-driven approaches. The present study aims to assess these assimilation frameworks for integrating different sets of satellite measurements in a hydrological context. To this end, we implement a traditional data assimilation system based on the Square Root Analysis (SQRA) filtering scheme and the newly developed data-driven Kalman-Takens technique to update the water components of a hydrological model with the Gravity Recovery And Climate Experiment (GRACE) terrestrial water storage (TWS), and soil moisture products from the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) and Soil Moisture and Ocean Salinity (SMOS) in a 5-day temporal scale. While SQRA relies on a physical model for forecasting, the Kalman-Takens only requires a trajectory of the system based on past data. We are particularly interested in testing both methods for assimilating different combination of the satellite data. In most of the cases, simultaneous assimilation of the satellite data by either standard SQRA or Kalman-Takens achieves the largest improvements in the hydrological state, in terms of the agreement with independent in-situ measurements. Furthermore, the Kalman-Takens approach performs comparably well to dynamical method at a fraction of the computational cost.
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Affiliation(s)
- M Khaki
- School of Earth and Planetary Sciences, Spatial Sciences, Curtin University, Perth, Australia; School of Engineering, University of Newcastle, Callaghan, New South Wales, Australia.
| | - I Hoteit
- King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - M Kuhn
- School of Earth and Planetary Sciences, Spatial Sciences, Curtin University, Perth, Australia
| | - E Forootan
- School of Earth and Ocean Sciences, Cardiff University, Cardiff, UK
| | - J Awange
- School of Earth and Planetary Sciences, Spatial Sciences, Curtin University, Perth, Australia
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Lindenberg P, Arana LR, Mahnke LK, Rönfeldt P, Heidenreich N, Doungmo G, Guignot N, Bean R, Chapman HN, Dierksmeyer D, Knoska J, Kuhn M, Garrevoet J, Mariani V, Oberthuer D, Pande K, Stern S, Tolstikova A, White TA, Beyerlein KR, Terraschke H. New insights into the crystallization of polymorphic materials: from real-time serial crystallography to luminescence analysis. REACT CHEM ENG 2019. [DOI: 10.1039/c9re00191c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article unravels reaction conditions governing the formation of polymorphic structures in solution down to the single particle level applying, for instance, unprecedented real-time serial crystallography measurements during a synthesis process.
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Khaki M, Awange J, Forootan E, Kuhn M. Understanding the association between climate variability and the Nile's water level fluctuations and water storage changes during 1992-2016. Sci Total Environ 2018; 645:1509-1521. [PMID: 30248872 DOI: 10.1016/j.scitotenv.2018.07.212] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/16/2018] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
With the construction of the largest dam in Africa, the Grand Ethiopian Renaissance Dam (GERD) along the Blue Nile, the Nile is back in the news. This, combined with Bujagali Dam on the White Nile are expected to bring ramification to the downstream countries. A comprehensive analysis of the Nile's waters (surface, soil moisture and groundwater) is, therefore, essential to inform its management. Owing to its shear size, however, obtaining in-situ data from "boots on the ground" is practically impossible, paving way to the use of satellite remotely sensed and models' products. The present study employs multi-mission satellites and surface models' products to provide, for the first time, a comprehensive analysis of the changes in Nile's stored waters' compartments; surface, soil moisture and groundwater, and their association to climate variability (El Niño Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD)) over the period 1992-2016. In this regard, remotely sensed altimetry data from TOPEX/Poseidon (T/P), Jason-1, and Jason-2 satellites along with the Gravity Recovery And Climate Experiment (GRACE) mission, and the Tropical Rainfall Measuring Mission Project (TRMM) rainfall products are applied to analyze the compartmental changes over the Nile River Basin (NRB). This is achieved through the creation of 62 virtual gauge stations distributed throughout the Nile River that generate water levels, which are used to compute surface water storage changes. Using GRACE total water storage (TWS), soil moisture data from multi-models based on the Triple Collocation Analysis (TCA) method, and altimetry derived surface water storage, Nile basin's groundwater variations are estimated. The impacts of climate variability on the compartmental changes are examined using TRMM precipitation and large-scale ocean-atmosphere ENSO and IOD indices. The results indicate a strong correlation between the river level variations and precipitation changes in the central part of the basin (0.77 on average) in comparison to the northern (0.64 on average) and southern parts (0.72 on average). Larger water storages and rainfall variations are observed in the Upper Nile in contrast to the Lower Nile. A negative groundwater trend is also found over the Lower Nile, which could be attributed to a significantly lower amount of rainfall in the last decade and extensive irrigation over the region.
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Affiliation(s)
- M Khaki
- School of Earth and Planetary Sciences, Discipline of Spatial Sciences, Curtin University, Perth, Australia; School of Engineering, University of Newcastle, Callaghan, New South Wales, Australia.
| | - J Awange
- School of Earth and Planetary Sciences, Discipline of Spatial Sciences, Curtin University, Perth, Australia
| | - E Forootan
- School of Earth and Ocean Sciences, Cardiff University, Cardiff, UK
| | - M Kuhn
- School of Earth and Planetary Sciences, Discipline of Spatial Sciences, Curtin University, Perth, Australia
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Khaki M, Forootan E, Kuhn M, Awange J, Papa F, Shum CK. A study of Bangladesh's sub-surface water storages using satellite products and data assimilation scheme. Sci Total Environ 2018; 625:963-977. [PMID: 29306834 DOI: 10.1016/j.scitotenv.2017.12.289] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 12/21/2017] [Accepted: 12/23/2017] [Indexed: 06/07/2023]
Abstract
Climate change can significantly influence terrestrial water changes around the world particularly in places that have been proven to be more vulnerable such as Bangladesh. In the past few decades, climate impacts, together with those of excessive human water use have changed the country's water availability structure. In this study, we use multi-mission remotely sensed measurements along with a hydrological model to separately analyze groundwater and soil moisture variations for the period 2003-2013, and their interactions with rainfall in Bangladesh. To improve the model's estimates of water storages, terrestrial water storage (TWS) data obtained from the Gravity Recovery And Climate Experiment (GRACE) satellite mission are assimilated into the World-Wide Water Resources Assessment (W3RA) model using the ensemble-based sequential technique of the Square Root Analysis (SQRA) filter. We investigate the capability of the data assimilation approach to use a non-regional hydrological model for a regional case study. Based on these estimates, we investigate relationships between the model derived sub-surface water storage changes and remotely sensed precipitations, as well as altimetry-derived river level variations in Bangladesh by applying the empirical mode decomposition (EMD) method. A larger correlation is found between river level heights and rainfalls (78% on average) in comparison to groundwater storage variations and rainfalls (57% on average). The results indicate a significant decline in groundwater storage (∼32% reduction) for Bangladesh between 2003 and 2013, which is equivalent to an average rate of 8.73 ± 2.45mm/year.
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Affiliation(s)
- M Khaki
- School of Earth and Planetary Sciences, Discipline of Spatial Sciences, Curtin University, Perth, Australia.
| | - E Forootan
- School of Earth and Ocean Sciences, Cardiff University, Cardiff, UK
| | - M Kuhn
- School of Earth and Planetary Sciences, Discipline of Spatial Sciences, Curtin University, Perth, Australia
| | - J Awange
- School of Earth and Planetary Sciences, Discipline of Spatial Sciences, Curtin University, Perth, Australia
| | - F Papa
- LEGOS, Université de Toulouse, IRD, CNES, CNRS, UPS, Toulouse 31400, France; Indo-French Cell for Water Sciences (IFCWS), IRD-IISc-NIO-IITM Joint International Laboratory, Bangalore 560012, India
| | - C K Shum
- Division of Geodetic Science, School of Earth Sciences, The Ohio State University, Columbus, OH, USA; Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China
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Sterr A, Kuhn M, Nissen C, Ettine D, Funk S, Feige B, Umarova R, Urbach H, Weiller C, Riemann D. Post-stroke insomnia in community-dwelling patients with chronic motor stroke: Physiological evidence and implications for stroke care. Sci Rep 2018; 8:8409. [PMID: 29849087 PMCID: PMC5976765 DOI: 10.1038/s41598-018-26630-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [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] [Received: 10/27/2017] [Accepted: 04/16/2018] [Indexed: 01/30/2023] Open
Abstract
Questionnaire studies suggest that stroke patients experience sustained problems with sleep and daytime sleepiness, but physiological sleep studies focussing specifically on the chronic phase of stroke are lacking. Here we report for the first time physiological data of sleep and daytime sleepiness obtained through the two gold-standard methods, nocturnal polysomnography and the Multiple Sleep Latency Test. Data from community-dwelling patients with chronic right-hemispheric stroke (>12 months) were compared to sex- and age-matched controls. Behavioural and physiological measures suggested that stroke patients had poorer sleep with longer sleep latencies and lower sleep efficiency. Patients further spent more time awake during the night, and showed greater high-frequency power during nonREM sleep than controls. At the same time the Multiple Sleep Latency Test revealed greater wake efficiency in patients than controls. Importantly these findings were not due to group differences in sleep disordered breathing or periodic limb movements. Post-stroke insomnia is presently not adequately addressed within the care pathway for stroke. A holistic approach to rehabilitation and care provision, that includes targeted sleep interventions, is likely to enhance long-term outcome and quality of live in those living with chronic deficits after stroke.
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Affiliation(s)
- A Sterr
- School of Psychology, University of Surrey, Guildford, UK.
| | - M Kuhn
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - C Nissen
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- University Hospital of Psychiatry and Psychotherapy, Bern, Switzerland
- Sleep Wake Epilepsy Center, Neuroscience Center, Bern, Switzerland
| | - D Ettine
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - S Funk
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - B Feige
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - R Umarova
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Department of Neurology, University Hospital Bern, Bern, Switzerland
| | - H Urbach
- Department of Neuroradiology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - C Weiller
- Department of Neurology, Medical Center, University of Freiburg, Freiburg, Germany
| | - D Riemann
- Department of Psychiatry and Psychotherapy, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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Bock M, Razzouk A, Chinnock R, Kuhn M, Martens T, Shankel T, Hasaniya N, Bailey L. Heart Transplantation in Infants and Children: The Thirty-Year Loma Linda University Experience. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.464] [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: 12/01/2022] Open
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Kuhn M, Hornung A, Sieverding L, Schlensak C, Hofbeck M, Wiegand G. Comparative Noninvasive Measurement of Cardiac Output Based on the Inert Gas Rebreathing Method (Innocor®) and MRI in Patients with Univentricular Hearts. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1628345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- M. Kuhn
- Department of Pediatric Cardiology, University Children's Hospital Tuebingen, Tuebingen, Germany
| | - A. Hornung
- Department of Pediatric Cardiology, University Children's Hospital Tuebingen, Tuebingen, Germany
| | - L. Sieverding
- Department of Pediatric Cardiology, University Children's Hospital Tuebingen, Tuebingen, Germany
| | - C. Schlensak
- Department of Thoracic and Cardiovascular Surgery, University Hospital Tuebingen, Tuebingen, Germany
| | - M. Hofbeck
- Department of Pediatric Cardiology, University Children's Hospital Tuebingen, Tuebingen, Germany
| | - G. Wiegand
- Department of Pediatric Cardiology, University Children's Hospital Tuebingen, Tuebingen, Germany
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Lueken U, Kuhn M, Yang Y, Straube B, Kircher T, Wittchen HU, Pfleiderer B, Arolt V, Wittmann A, Ströhle A, Weber H, Reif A, Domschke K, Deckert J, Lonsdorf TB. Modulation of defensive reactivity by GLRB allelic variation: converging evidence from an intermediate phenotype approach. Transl Psychiatry 2017; 7:e1227. [PMID: 28872638 PMCID: PMC5639239 DOI: 10.1038/tp.2017.186] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 06/07/2017] [Accepted: 07/04/2017] [Indexed: 01/20/2023] Open
Abstract
Representing a phylogenetically old and very basic mechanism of inhibitory neurotransmission, glycine receptors have been implicated in the modulation of behavioral components underlying defensive responding toward threat. As one of the first findings being confirmed by genome-wide association studies for the phenotype of panic disorder and agoraphobia, allelic variation in a gene coding for the glycine receptor beta subunit (GLRB) has recently been associated with increased neural fear network activation and enhanced acoustic startle reflexes. On the basis of two independent healthy control samples, we here aimed to further explore the functional significance of the GLRB genotype (rs7688285) by employing an intermediate phenotype approach. We focused on the phenotype of defensive system reactivity across the levels of brain function, structure, and physiology. Converging evidence across both samples was found for increased neurofunctional activation in the (anterior) insular cortex in GLRB risk allele carriers and altered fear conditioning as a function of genotype. The robustness of GLRB effects is demonstrated by consistent findings across different experimental fear conditioning paradigms and recording sites. Altogether, findings provide translational evidence for glycine neurotransmission as a modulator of the brain's evolutionary old dynamic defensive system and provide further support for a strong, biologically plausible candidate intermediate phenotype of defensive reactivity. As such, glycine-dependent neurotransmission may open up new avenues for mechanistic research on the etiopathogenesis of fear and anxiety disorders.
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Affiliation(s)
- U Lueken
- Center of Mental Health, Department of Psychiatry, Psychosomatics, and Psychotherapy, University Hospital of Würzburg, Würzburg, Germany
| | - M Kuhn
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Y Yang
- Department of Psychiatry and Psychotherapy, Phillips-University Marburg, Marburg, Germany
| | - B Straube
- Department of Psychiatry and Psychotherapy, Phillips-University Marburg, Marburg, Germany
| | - T Kircher
- Department of Psychiatry and Psychotherapy, Phillips-University Marburg, Marburg, Germany
| | - H-U Wittchen
- Department of Psychology, Institute of Clinical Psychology and Psychotherapy, Technische Universität Dresden, Dresden, Germany
| | - B Pfleiderer
- Department of Clinical Radiology, University Hospital Münster, Münster, Germany
| | - V Arolt
- Department of Psychiatry, University Hospital Münster, Münster, Germany
| | - A Wittmann
- Department of Psychiatry and Psychotherapy, Charité - University Medicine Berlin, Berlin, Germany
| | - A Ströhle
- Department of Psychiatry and Psychotherapy, Charité - University Medicine Berlin, Berlin, Germany
| | - H Weber
- Center of Mental Health, Department of Psychiatry, Psychosomatics, and Psychotherapy, University Hospital of Würzburg, Würzburg, Germany
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - A Reif
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - K Domschke
- Center of Mental Health, Department of Psychiatry, Psychosomatics, and Psychotherapy, University Hospital of Würzburg, Würzburg, Germany
- Department of Psychiatry and Psychotherapy, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - J Deckert
- Center of Mental Health, Department of Psychiatry, Psychosomatics, and Psychotherapy, University Hospital of Würzburg, Würzburg, Germany
| | - T B Lonsdorf
- Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Palomba M, Till B, Park S, Morschhauser F, Cartron G, Marks R, Penuel E, Chitra S, Kuhn M, Popplewell L. A PHASE IB STUDY EVALUATING THE SAFETY AND CLINICAL ACTIVITY OF ATEZOLIZUMAB COMBINED WITH OBINUTUZUMAB IN PATIENTS WITH RELAPSED OR REFRACTORY NON-HODGKIN LYMPHOMA (NHL). Hematol Oncol 2017. [DOI: 10.1002/hon.2437_126] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- M.L. Palomba
- Lymphoma Service; Memorial Sloan Kettering Cancer Center; New York New York USA
| | - B.G. Till
- Seattle Cancer Care Alliance; Fred Hutchinson Cancer Research Center; Seattle WA USA
| | - S.I. Park
- Lineberger Comprehensive Cancer Center; University of North Carolina; USA
| | - F. Morschhauser
- Department of Clinical Hematology; Lille University Hospital Center; Lille France
| | - G. Cartron
- Department of Clinical Hematology; University Hospital Center of Montpellier; Montpellier France
| | - R. Marks
- Department of Hematology, Oncology and Stem Cell Transplantation; Universitätsklinikum Freiburg; Freiburg Germany
| | - E. Penuel
- Product Development Oncology; Genentech, Inc.; South San Francisco California USA
| | - S. Chitra
- Product Development Oncology; Genentech, Inc.; South San Francisco California USA
| | - M. Kuhn
- Product Development Oncology; Genentech, Inc.; South San Francisco California USA
| | - L. Popplewell
- Hematology & Hematopoietic Cell Transplantation; City of Hope, Duarte California USA
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Fuchs (Theil) A, Wilhelm C, Kuhn M, Petzold A, Tuve S, Oelschlägel U, Dahl A, Bornhäuser M, Bonifacio E, Eugster A. Regulatory T cell kinetics following adoptive transfer of expanded allogeneic regulatory T cells into patients with chronic graft-versus host disease. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.016] [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: 11/27/2022]
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25
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Maier JG, Piosczyk H, Holz J, Landmann N, Deschler C, Frase L, Kuhn M, Kloeppel S, Spiegelhalder K, Sterr A, Riemann D, Feige B, Voderholzer U, Nissen C. 0213 BRIEF PERIODS OF NREM SLEEP DO NOT PROMOTE EARLY OFFLINE GAINS BUT SUBSEQUENT ON-TASK PERFORMANCE IN MOTOR SKILL LEARNING. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.212] [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: 11/14/2022] Open
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26
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Nissen C, Maier JG, Kuhn M, Mainberger F, Feige B, Klöppel S, Riemann D. 0226 SLOW WAVE SLEEP ORCHESTRATES INPUT-SPECIFIC STRENGTHENING AND GLOBAL DOWNSCALING OF SYNAPSES IN THE HUMAN CORTEX. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.225] [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: 11/13/2022] Open
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27
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Linhartová P, Kuhn M, Damborská A, Lamoš M, Mikl M, Barteček R, Theiner P, Kašpárek T, Bareš M. Neural correlates of behavioral inhibition in healthy people and in patients with borderline personality disorder and ADHD. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.02.316] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
IntroductionDeficits in behavioral inhibition leading to impulsivity occur frequently in many otherwise different psychiatric diseases, mainly ADHD and borderline personality disorder (BPD). However, the research is complicated by using of different tests and their parameters. Further, the role of frontoparietal network in behavioral inhibition has been questioned recently.ObjectivesThe aims of our studies were:– to present the influence of differences in inhibition tasks parameters;– to describe neural correlates of behavioral inhibition in healthy people;– to compare them with BPD and ADHD patients.MethodsWe implemented two different variants of Go/NoGo Task, one designed for behavioral research and the second for neuroimaging. Thirty healthy participants (37% of women, age range 15 to 33 years) underwent behavioral and fMRI measurement. Further, groups of patients with BPD, ADHD and their healthy controls underwent the Go/NoGo Task under both fMRI and EEG.ResultsThe results show differences in behavioral performance based on different task parameters. The fMRI results in healthy people show specific activation patterns within the frontoparietal network associated with inhibition trials (mainly inferior frontal gyrus, insula, cingulate gyrus, SMA, inferior parietal lobule). Further, we present differences between patients with BPD, ADHD and controls in BOLD signal and ERPs.ConclusionsGo/NoGo Task design substantially influences the subjects’ behavioral performance. Our results with methodologically upgraded Go/NoGo Task design provide support for the inhibition frontoparietal brain network and its different activations in BPD and ADHD patients. The research was supported by Ministry of Health of the Czech Republic, grant nr. 15-30062A.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Mack F, Baumert B, Steffens R, Kuhn M, Herrlinger U, Glas M. P09.02 Survival after re-irradiation of recurrent glioblastoma: no impact of MGMT and treatment modalities? Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.260] [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: 11/14/2022] Open
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29
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Herold S, Kuhn M, Bonin MV, Stange T, Platzbecker U, Radke J, Lange T, Sockel K, Gutsche K, Schetelig J, Röllig C, Schuster C, Roeder I, Dahl A, Mohr B, Serve H, Brandts C, Ehninger G, Bornhäuser M, Thiede C. Donor cell leukemia: evidence for multiple preleukemic clones and parallel long term clonal evolution in donor and recipient. Leukemia 2017; 31:1637-1640. [PMID: 28348390 DOI: 10.1038/leu.2017.104] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- S Herold
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany
| | - M Kuhn
- Institut für Medizinische Informatik und Biometrie, TU Dresden, Dresden, Germany
| | - M V Bonin
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany.,Deutsches Konsortium für Translationale Krebsforschung (DKTK), Dresden, Germany.,Deutsches Krebsforschungszentrum (DKFZ), Heidelberg, Germany
| | - T Stange
- Institut für Medizinische Informatik und Biometrie, TU Dresden, Dresden, Germany
| | - U Platzbecker
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany
| | - J Radke
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany
| | - T Lange
- Abteilung Hämatologie, Universitätsklinikum Leipzig AöR, Leipzig, Germany
| | - K Sockel
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany
| | - K Gutsche
- Klinik für Hämatologie und Onkologie, Städtisches Klinikum Görlitz, Görlitz, Germany
| | - J Schetelig
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany
| | - C Röllig
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany
| | - C Schuster
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany
| | - I Roeder
- Institut für Medizinische Informatik und Biometrie, TU Dresden, Dresden, Germany
| | - A Dahl
- Deep Sequencing Core Facility, Center for Regenerative Medicine, TU Dresden, Dresden, Germany
| | - B Mohr
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany
| | - H Serve
- Medizinische Klinik II, Klinikum der Johann-Wolfgang-Goethe-Universität, Frankfurt am Main, Germany
| | - C Brandts
- Medizinische Klinik II, Klinikum der Johann-Wolfgang-Goethe-Universität, Frankfurt am Main, Germany
| | - G Ehninger
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany
| | - M Bornhäuser
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany
| | - C Thiede
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der TU Dresden, Dresden, Germany
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30
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Theil A, Wilhelm C, Kuhn M, Petzold A, Tuve S, Oelschlägel U, Dahl A, Bornhäuser M, Bonifacio E, Eugster A. T cell receptor repertoires after adoptive transfer of expanded allogeneic regulatory T cells. Clin Exp Immunol 2016; 187:316-324. [PMID: 27774628 DOI: 10.1111/cei.12887] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 10/19/2016] [Indexed: 12/16/2022] Open
Abstract
Regulatory T cell (Treg ) therapy has been exploited in autoimmune disease, solid organ transplantation and in efforts to prevent or treat graft-versus-host disease (GVHD). However, our knowledge on the in-vivo persistence of transfused Treg is limited. Whether Treg transfusion leads to notable changes in the overall Treg repertoire or whether longevity of Treg in the periphery is restricted to certain clones is unknown. Here we use T cell receptor alpha chain sequencing (TCR-α-NGS) to monitor changes in the repertoire of Treg upon polyclonal expansion and after subsequent adoptive transfer. We applied TCR-α-NGS to samples from two patients with chronic GVHD who received comparable doses of stem cell donor derived expanded Treg . We found that in-vitro polyclonal expansion led to notable repertoire changes in vitro and that Treg cell therapy altered the peripheral Treg repertoire considerably towards that of the infused cell product, to different degrees, in each patient. Clonal changes in the peripheral blood were transient and correlated well with the clinical parameters. We suggest that T cell clonotype analyses using TCR sequencing should be considered as a means to monitor longevity and fate of adoptively transferred T cells.
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Affiliation(s)
- A Theil
- DFG-Center for Regenerative Therapies Dresden, Dresden, Germany.,Internal Medicine I, University Hospital Carl Gustav Carus, Dresden, Germany
| | - C Wilhelm
- DFG-Center for Regenerative Therapies Dresden, Dresden, Germany
| | - M Kuhn
- Institute for Medical Informatics and Biometry, Faculty of Medicine Carl Gustav Carus, Dresden, Germany
| | - A Petzold
- Deep Sequencing Group, Biotechnology Center, Technische Universität Dresden, Dresden, Germany
| | - S Tuve
- Internal Medicine I, University Hospital Carl Gustav Carus, Dresden, Germany
| | - U Oelschlägel
- Internal Medicine I, University Hospital Carl Gustav Carus, Dresden, Germany
| | - A Dahl
- Deep Sequencing Group, Biotechnology Center, Technische Universität Dresden, Dresden, Germany
| | - M Bornhäuser
- Internal Medicine I, University Hospital Carl Gustav Carus, Dresden, Germany
| | - E Bonifacio
- DFG-Center for Regenerative Therapies Dresden, Dresden, Germany
| | - A Eugster
- DFG-Center for Regenerative Therapies Dresden, Dresden, Germany
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Samad T, Razzouk A, Bock M, Chinnock R, Bailey L, Hasaniya N, Kuhn M, Anthony H, Stoletniy L. Cardiac Allograft Vasculopathy in Pediatric Heart Transplant Recipients: Coronary Stenting as a Prognostic Indicator. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.060] [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: 11/17/2022] Open
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Aulbach P, Mucha D, Engellandt K, Hädrich K, Kuhn M, von Kummer R. Diagnostic Impact of Bone-Subtraction CT Angiography for Patients with Acute Subarachnoid Hemorrhage. AJNR Am J Neuroradiol 2016; 37:236-43. [PMID: 26450538 DOI: 10.3174/ajnr.a4497] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 06/22/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Detection and evaluation of ruptured aneurysms is critical for choosing an appropriate endovascular or neurosurgical intervention. Our aim was to assess whether bone-subtraction CTA is capable of guiding treatment for cerebral aneurysms in patients with acute SAH and could replace DSA. MATERIALS AND METHODS We prospectively studied 116 consecutive patients with SAH with 16-detector row bone-subtraction CTA and DSA before intracranial aneurysm treatment. Two independent neuroradiologists reviewed the bone-subtraction CTA blinded to DSA (reference standard). We determined the accuracy of bone-subtraction CTA for aneurysm detection and the measurement of aneurysm dimensions and compared the radiation doses of the 2 imaging modalities. RESULTS Seventy-one patients (61%) had 74 aneurysms on DSA. Bone-subtraction CTA detected 73 of these aneurysms, but it detected 1 additional aneurysm. On a per-aneurysm basis, sensitivity, specificity, and positive and negative predictive values for bone-subtraction CTA were 99%, 98%, and 99% and 98%, respectively. For aneurysms of ≤3 mm, sensitivity was 94% (95% CI, 73%-99%). Bone-subtraction CTA slightly overestimated neck and dome diameters by <0.2 mm and overestimated the dome-to-neck ratios by 2% on average. Dose-length product was 565 ± 201 mGy × cm for bone-subtraction CTA and 1609 ± 1300 mGy × cm for DSA. CONCLUSIONS Bone-subtraction CTA is as accurate as DSA in detecting cerebral aneurysms after SAH, provides similar information about aneurysm configuration and measures, and reduces the average effective radiation dose for vascular diagnostics by 65%. Diagnostic equivalence in association with dose reduction suggests replacing DSA with bone-subtraction CTA in the diagnostic work-up of spontaneous SAH.
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Affiliation(s)
- P Aulbach
- From the Department of Neuroradiology (P.A., K.E., K.H., R.v.K.), University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
| | - D Mucha
- Department of Neuroradiology (D.M.), Heinrich Braun Hospital, Zwickau, Germany
| | - K Engellandt
- From the Department of Neuroradiology (P.A., K.E., K.H., R.v.K.), University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
| | - K Hädrich
- From the Department of Neuroradiology (P.A., K.E., K.H., R.v.K.), University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
| | - M Kuhn
- Institute for Medical Informatics and Biometry at the Medical Faculty (M.K.), Technische Universität, Dresden, Germany
| | - R von Kummer
- From the Department of Neuroradiology (P.A., K.E., K.H., R.v.K.), University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
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Ter Wee P, Kuhn M, van der Woude H, Van De Looverbosch D, Heyman H, Mikušová L, Fouque D. Gastro-Intestinal Tolerance and Renal Safety of Protein Oral Nutritional Supplements in Nursing Home Residents: A Randomized Controlled Trial. J Nutr Health Aging 2016; 20:944-951. [PMID: 27791225 DOI: 10.1007/s12603-016-0709-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
BACKGROUND/OBJECTIVE High protein oral nutritional supplements (ONS) are regularly prescribed to undernourished patients; however usage of these in older adults is being discussed, as their renal function might have declined with age. Therefore, the aim of the current study was to evaluate the effects of 8 week long consumption of high protein ONS on the renal function of nursing home residents in need of supplementation. Furthermore, within the same setup, differences in gastro-intestinal tolerance between a standard and a more concentrated version of an ONS were investigated. DESIGN Randomized, controlled, single-blind, parallel-group, multi-country trial (NTR2565). SETTING Nursing home. PARTICIPANTS 67 nursing home residents in need of ONS (energy-dense, small volume group n=32; standard volume group n=35). INTERVENTION Protein supplementation was provided by either a standard (200ml, 300kcal, 20g protein) or an energy-dense, small volume (125ml, 300kcal, 18g protein) ONS during the 8 week long study. MEASUREMENTS Primary outcome was gastro-intestinal tolerance, assessed by daily stool frequency and consistency, and occurrence and intensity of self-reported gastro-intestinal symptoms. Safety was measured via the occurrence of (serious) adverse events, vital signs, as well as liver- and kidney function monitoring. RESULTS No clinically relevant and, except for flatulence, no statistically significant differences in gastro-intestinal tolerance were observed between groups. No significant difference between groups was found for estimated glomerular filtration rate (eGFR) and urinary albumin/creatinine ratio at baseline and week 8, nor for the changes from baseline. Adverse events and the changes in monitored renal parameters over the study period did not point to a deterioration of renal function. CONCLUSION High protein ONS seems to be well-tolerated and safe; there is no indication that it affects renal function in nursing home residents, including patients with stage 3 chronic kidney disease, under the conditions tested. Results did not suggest a difference in the effect on renal function between standard and energy-dense small volume ONS format.
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Affiliation(s)
- P Ter Wee
- Piet ter Wee, VU Medical Center Amsterdam, The Netherlands, Phone: +31(0) 20-4442673, Mail:
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Levionnois OL, Zuehlke N, Kuhn M, Spadavecchia C. Impact of low inspired oxygen fraction on oxygenation in clinical horses under general anesthesia. PFERDEHEILKUNDE 2016. [DOI: 10.21836/pem20160507] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Putzer D, Kuhn M, Jaschke W. Patientenzufriedenheit und Patientenrückmeldungen: Erfahrungen aus 5 Jahren Zusammenarbeit der Innsbrucker Radiologie und Patientenvertretung. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1550830] [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]
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Reinhart V, Nguyen T, Gerwien R, Kuhn M, Yates P, Lanz T. Downstream effects of striatal-enriched protein tyrosine phosphatase reduction on RNA expression in vivo and in vitro. Neuroscience 2014; 278:62-9. [DOI: 10.1016/j.neuroscience.2014.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 08/04/2014] [Accepted: 08/06/2014] [Indexed: 12/23/2022]
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Briesen H, Kuhn M. Mechanistische Modellierung der Anschwemmfiltration mit zeitveränderlichen Prozessbedingungen. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201450319] [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: 11/11/2022]
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Lombard K, van Steijn J, Schuur T, Kuhn M, Rouws C, Huinink EL, van der Hooft C, van Asselt D. Compliance of energy-dense, small volume oral nutritional supplements in the daily clinical practice on a geriatric ward--an observational study. J Nutr Health Aging 2014; 18:649-53. [PMID: 25226102 DOI: 10.1007/s12603-014-0496-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Compliance is important in optimizing the clinical effectiveness of oral nutritional supplements (ONS). Small volume, energy-dense ONS (ED-ONS; ≥ 2 kcal/ml) have been shown to improve compliance in clinical trial settings. However, data from clinical practice is still lacking. The aim of the present study was to evaluate the effect of ED-ONS on the compliance in an observational set-up to obtain data from daily clinical practice on a geriatric ward. METHODS Geriatric inpatients, undernourished or at risk of undernutrition received two servings of either ED-ONS (125 ml, 2.4 kcal/ml: Nutridrink Compact Energy, Nutricia) or a standard ONS (S-ONS; 200 ml, 1.5 kcal/ml: Nutridrink) as part of their daily routine care. Patients were allocated to a group according to availability of beds and placement on the ward. Compliance (kcal/day and % of prescribed volume) was assessed by weighing returned bottles. Data were analyzed via Mixed Model for Repeated Measures. RESULTS Forty-seven patients received ED-ONS, and 61 patients received S-ONS. Compliance was significantly higher with ED-ONS in geriatric inpatients compared to S-ONS ( 378 ± 14.0 kcal/day vs. 337 ± 13.6 kcal/day (mean ± SEM), p = 0.039, 63.0 ± 2.34% vs. 56.2 ± 2.26%, p = 0.039). Moreover, a trend (p=0.078) was observed towards an increasing difference in compliance over time. CONCLUSION This study shows that compliance to ED-ONS is significantly better than to S-ONS in daily clinical practice. Although small, the difference in compliance seems to increase over time, suggesting clinical relevance with longer treatment.
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Affiliation(s)
- K Lombard
- Karien Lombard, Department of Geriatric Medicine, Medical Centre Leeuwarden, Postbus 888, 8901 BR Leeuwarden, The Netherlands, Phone: +31582863195, Fax: +31582866837, Email address:
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Mataseje LF, Boyd DA, Delport J, Hoang L, Imperial M, Lefebvre B, Kuhn M, Van Caeseele P, Willey BM, Mulvey MR. Serratia marcescens harbouring SME-type class A carbapenemases in Canada and the presence of blaSME on a novel genomic island, SmarGI1-1. J Antimicrob Chemother 2014; 69:1825-9. [PMID: 24659751 DOI: 10.1093/jac/dku040] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVES An increasing prevalence since 2010 of Serratia marcescens harbouring the Ambler class A carbapenemase SME prompted us to further characterize these isolates. METHODS Isolates harbouring bla(SME) were identified by PCR and sequencing. Phenotypic analysis for carbapenemase activity was carried out by a modified Hodge test and a modified Carba NP test. Antimicrobial susceptibilities were determined by Etest and Vitek 2. Typing was by PFGE of macrorestriction digests. Whole-genome sequencing of three isolates was carried out to characterize the genomic region harbouring the bla(SME)-type genes. RESULTS All S. marcescens harbouring SME-type enzymes could be detected using a modified Carba NP test. Isolates harbouring bla(SME) were resistant to penicillins and carbapenems, but remained susceptible to third-generation cephalosporins, as well as fluoroquinolones and trimethoprim/sulfamethoxazole. Isolates exhibited diverse genetic backgrounds, though 57% of isolates were found in three clusters. Analysis of whole-genome sequence data from three isolates revealed that the bla(SME) gene occurred in a novel cryptic prophage genomic island, SmarGI1-1. CONCLUSIONS There has been an increasing occurrence of S. marcescens harbouring bla(SME) in Canada since 2010. The bla(SME) gene was found on a genomic island, SmarGI1-1, that can be excised and circularized, which probably contributes to its dissemination amongst S. marcescens.
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Affiliation(s)
- L F Mataseje
- National Microbiology Laboratory, Winnipeg, MB, Canada
| | - D A Boyd
- National Microbiology Laboratory, Winnipeg, MB, Canada
| | - J Delport
- London Health Sciences Centre, London, ON, Canada
| | - L Hoang
- British Columbia Public Health Microbiology and Reference Laboratory, Vancouver, BC, Canada
| | - M Imperial
- British Columbia Public Health Microbiology and Reference Laboratory, Vancouver, BC, Canada
| | - B Lefebvre
- Laboratoire de santé publique du Québec, Sainte-Anne-de-Bellevue, QC, Canada
| | - M Kuhn
- Moncton Hospital, Moncton, NB, Canada
| | | | - B M Willey
- Mount Sinai Hospital, Toronto, ON, Canada
| | - M R Mulvey
- National Microbiology Laboratory, Winnipeg, MB, Canada
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Kampmann C, ThiedeS, Kuhn M. Transarterial Coil Embolization of the internal carotid artery and the maxillar artery in a standing horse for therapy of Guttural Pouch Mycosis. PFERDEHEILKUNDE 2014. [DOI: 10.21836/pem20140205] [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: 11/27/2022]
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Kuhn M. Managing your red, yellow and greens – A guide to safely manage transportation of highly contagious pathogens. Afr J Emerg Med 2013. [DOI: 10.1016/j.afjem.2013.08.050] [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: 10/26/2022] Open
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Torres M, Ginder Coupez V, Dorigny B, Kuhn M, Barberger-Gateau P, Letenneur L. P188 Statut nutritionnel et incidence de la démence chez des sujets âgés vivant à domicile. NUTR CLIN METAB 2013. [DOI: 10.1016/s0985-0562(13)70519-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Mataseje LF, Boyd DA, Lefebvre B, Bryce E, Embree J, Gravel D, Katz K, Kibsey P, Kuhn M, Langley J, Mitchell R, Roscoe D, Simor A, Taylor G, Thomas E, Turgeon N, Mulvey MR, Boyd D, Bryce E, Conly J, Deheer J, Embil J, Embree J, Evans G, Forgie S, Frenette C, Lemieux C, Golding G, Gravel D, Henderson E, Hutchinson J, John M, Johnston L, Katz K, Kibsey P, Kuhn M, Langley J, Lesaux N, Loeb M, Matlow A, McGeer A, Miller M, Mitchell R, Moore D, Mounchili A, Mulvey M, Pelude L, Roth V, Simor A, Suh K, Taylor G, Thomas E, Turgeon N, Vearncombe M, Vayalumkal J, Weiss K, Wong A. Complete sequences of a novel blaNDM-1-harbouring plasmid from Providencia rettgeri and an FII-type plasmid from Klebsiella pneumoniae identified in Canada. J Antimicrob Chemother 2013; 69:637-42. [DOI: 10.1093/jac/dkt445] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Klinke T, Urban M, Lück C, Hannig C, Kuhn M, Krämer N. Changes in Candida spp., Mutans Streptococci and Lactobacilli following Treatment of Early Childhood Caries: A 1-Year Follow-Up. Caries Res 2013; 48:24-31. [DOI: 10.1159/000351673] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 04/21/2013] [Indexed: 11/19/2022] Open
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Herbel S, Lauzat B, von Nickisch-Rosenegk M, Kuhn M, Murugaiyan J, Wieler L, Guenther S. Species-specific quantification of probiotic lactobacilli in yoghurt by quantitative real-time PCR. J Appl Microbiol 2013; 115:1402-10. [DOI: 10.1111/jam.12341] [Citation(s) in RCA: 36] [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] [Received: 06/03/2013] [Revised: 08/19/2013] [Accepted: 09/04/2013] [Indexed: 11/29/2022]
Affiliation(s)
- S.R. Herbel
- Institute of Microbiology and Epizootics; Freie Universität Berlin; Berlin Germany
- Department of Biology, Chemistry, Pharmacy; Freie Universität Berlin; Berlin Germany
| | - B. Lauzat
- Institute of Microbiology and Epizootics; Freie Universität Berlin; Berlin Germany
| | | | - M. Kuhn
- CONGEN Biotechnologie GmbH; Berlin Germany
| | - J. Murugaiyan
- Institute of Animal and Environmental Hygiene; Freie Universität Berlin; Berlin Germany
| | - L.H. Wieler
- Institute of Microbiology and Epizootics; Freie Universität Berlin; Berlin Germany
| | - S. Guenther
- Institute of Microbiology and Epizootics; Freie Universität Berlin; Berlin Germany
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Lombard K, Kuhn M, Rouws C, Van Asselt D. The effects of a high-energy dense, small volume oral nutritional supplement on compliance in the daily clinical practice of a geriatric ward. Eur Geriatr Med 2013. [DOI: 10.1016/j.eurger.2013.07.355] [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: 11/25/2022]
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Torres M, Ginder Coupez V, Dorigny B, Kuhn M, Barberger-Gateau P, Letenneur L. OP033 NUTRITIONAL STATUS AND INCIDENCE OF DEMENTIA IN ELDERLY PEOPLE LIVING AT HOME IN FRANCE: THE 3C COHORT STUDY. Clin Nutr 2013. [DOI: 10.1016/s0261-5614(13)60035-7] [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: 10/26/2022]
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Lombard K, Kuhn M, Rouws C, van Asselt D. PP034-SUN THE EFFECTS OF A HIGH ENERGY DENSE, SMALL VOLUME ORAL NUTRITIONAL SUPPLEMENT ON COMPLIANCE IN THE DAILY CLINICAL PRACTICE OF A GERIATRIC WARD. Clin Nutr 2013. [DOI: 10.1016/s0261-5614(13)60080-1] [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: 10/26/2022]
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Gregor H, Rupp W, Janoske U, Kuhn M. Dewatering behavior of sewage screenings. Waste Manag 2013; 33:907-914. [PMID: 23374399 DOI: 10.1016/j.wasman.2012.11.016] [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] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 10/28/2012] [Accepted: 11/23/2012] [Indexed: 06/01/2023]
Abstract
Screenings from municipal sewage treatment plants have increased in importance in recent years, particularly in Germany, where laws prohibit depositing of screenings in landfill. This paper presents basic investigations of sewage screenings, especially the structure and dewatering behavior. Two standard experiments are conducted. First, the relationship between pressure and water content is determined. Secondly the flow resistance as a function of pressure is evaluated. The results help to derive simulation models in order to understand how the material behaves inside a wash press.
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Affiliation(s)
- H Gregor
- University of Wuppertal, Wuppertal, Germany.
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