1
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Jansen TL, Janssen M, Otto C, Vosters JLG, Niessink T. Raman spectroscopic analysis of joint capsule calcification of the fingers. Clin Rheumatol 2024; 43:1783-1784. [PMID: 38502410 DOI: 10.1007/s10067-024-06941-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/11/2024] [Accepted: 03/13/2024] [Indexed: 03/21/2024]
Affiliation(s)
- T L Jansen
- Department of Rheumatology, VieCuri Medical Centre, Venlo, the Netherlands
| | - M Janssen
- Department of Rheumatology, VieCuri Medical Centre, Venlo, the Netherlands
| | - C Otto
- Personalized Diagnostics and Therapeutics, Technical Medicine Centre, University of Twente, Drienerlolaan 5, 7500AE, Enschede, the Netherlands
| | - J L G Vosters
- Department of Rheumatology, Meander Medical Centre, Amersfoort, the Netherlands
| | - T Niessink
- Department of Rheumatology, VieCuri Medical Centre, Venlo, the Netherlands.
- Personalized Diagnostics and Therapeutics, Technical Medicine Centre, University of Twente, Drienerlolaan 5, 7500AE, Enschede, the Netherlands.
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2
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Madrahimov N, Mutsenko V, Makhmetov B, Malikov M, Klapproth A, Cristaldo RB, Hamouda KK, Otto C, Leyh R, Bening C. Real-Time Tissue Oxygenation Monitoring Using Fiberoptic Sensors in Cadaveric Multiorgan Preservation under Mouse ECMO. Thorac Cardiovasc Surg 2022. [DOI: 10.1055/s-0042-1742788] [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: 10/19/2022]
Affiliation(s)
- N. Madrahimov
- Department of Thoracic and Cardiovascular Surgery, University Hospital Würzburg, Würzburg, Deutschland
| | - V. Mutsenko
- Department of Thoracic and Cardiovascular Surgery, University Hospital Würzburg, Würzburg, Deutschland
| | - B. Makhmetov
- Department of Thoracic and Cardiovascular Surgery, University Hospital Würzburg, Würzburg, Deutschland
| | - M. Malikov
- Department of Thoracic and Cardiovascular Surgery, University Clinic Würzburg, Würzburg, Deutschland
| | - A. Klapproth
- Department of Thoracic and Cardiovascular Surgery, University Hospital Würzburg, Würzburg, Deutschland
| | - R. Benitez Cristaldo
- Department of Thoracic and Cardiovascular Surgery, University Hospital Würzburg, Würzburg, Deutschland
| | - K K. Hamouda
- Department of Thoracic and Cardiovascular Surgery, University Hospital Würzburg, Würzburg, Deutschland
| | - C. Otto
- Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery, University Hospital Würzburg, Würzburg, Deutschland
| | - R. Leyh
- Department of Thoracic and Cardiovascular Surgery, University Hospital Würzburg, Würzburg, Deutschland
| | - C. Bening
- Department of Thoracic and Cardiovascular Surgery, University Hospital Würzburg, Würzburg, Deutschland
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3
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VidalMata RG, Banerjee S, RichardWebster B, Albright M, Davalos P, McCloskey S, Miller B, Tambo A, Ghosh S, Nagesh S, Yuan Y, Hu Y, Wu J, Yang W, Zhang X, Liu J, Wang Z, Chen HT, Huang TW, Chin WC, Li YC, Lababidi M, Otto C, Scheirer WJ. Bridging the Gap Between Computational Photography and Visual Recognition. IEEE Trans Pattern Anal Mach Intell 2021; 43:4272-4290. [PMID: 32750769 DOI: 10.1109/tpami.2020.2996538] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
What is the current state-of-the-art for image restoration and enhancement applied to degraded images acquired under less than ideal circumstances? Can the application of such algorithms as a pre-processing step improve image interpretability for manual analysis or automatic visual recognition to classify scene content? While there have been important advances in the area of computational photography to restore or enhance the visual quality of an image, the capabilities of such techniques have not always translated in a useful way to visual recognition tasks. Consequently, there is a pressing need for the development of algorithms that are designed for the joint problem of improving visual appearance and recognition, which will be an enabling factor for the deployment of visual recognition tools in many real-world scenarios. To address this, we introduce the UG 2 dataset as a large-scale benchmark composed of video imagery captured under challenging conditions, and two enhancement tasks designed to test algorithmic impact on visual quality and automatic object recognition. Furthermore, we propose a set of metrics to evaluate the joint improvement of such tasks as well as individual algorithmic advances, including a novel psychophysics-based evaluation regime for human assessment and a realistic set of quantitative measures for object recognition performance. We introduce six new algorithms for image restoration or enhancement, which were created as part of the IARPA sponsored UG 2 Challenge workshop held at CVPR 2018. Under the proposed evaluation regime, we present an in-depth analysis of these algorithms and a host of deep learning-based and classic baseline approaches. From the observed results, it is evident that we are in the early days of building a bridge between computational photography and visual recognition, leaving many opportunities for innovation in this area.
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4
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Wüstner A, Otto C, Reiss F, Voss C, Meyrose AK, Hölling H, Ravens-Sieberer U. Mental health from childhood to adulthood: Results of the 11-year follow-up of the BELLA study. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Mental health problems in children, adolescents and young adults are highly prevalent and cause a significant burden for both individuals and society, resulting in a high relevance to public health. Longitudinal studies are needed to provide profound population-based data on mental health and well-being. In the present study, first results of the 11-year follow-up of the German BELLA study are presented. These include age- and gender-specific courses of general health and well-being, long-term health outcomes of mental health problems, and the utilisation of mental health services.
Methods
The longitudinal BELLA study is the module on mental health and well-being within the German Health Interview and Examination Survey for Children and Adolescents (KiGGS). The BELLA study has gathered data since 2003 at five measurement points using standardised measures. In the most recent 11-year follow-up, N = 3,492 young people aged 7 to 31 years participated. Individual growth modeling, linear regression and descriptive analyses were conducted.
Results
Self-reported general health and well-being were both better in younger than older and in male compared to female participants using data from all five measurement points. Mental health problems in childhood and adolescence (measured at baseline) were associated with adverse general, mental and physical health outcomes at 6-year and 11-year follow-ups. About 75 % of children and adolescents with a diagnosed mental disorder were under mental health treatment.
Conclusions
With its 11-year follow-up, the longitudinal BELLA study provides new data on mental health and well-being in German children, adolescents and young adults. Our findings are important for the development of targeted mental health promotion and early prevention strategies. Promising future analyses are planned.
Key messages
The BELLA study provides data on developmental trajectories of mental health from childhood to adulthood, on long-term health outcomes of mental health problems and on mental health care use. The findings of the present study are of great relevance for the development of targeted health promotion and prevention programs.
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Affiliation(s)
- A Wüstner
- Department of Child and Adolescent Psychiatry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - C Otto
- Department of Child and Adolescent Psychiatry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - F Reiss
- Department of Child and Adolescent Psychiatry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - C Voss
- Department of Child and Adolescent Psychiatry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - A-K Meyrose
- Department of Child and Adolescent Psychiatry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Clinical Psychology, Helmut-Schmidt-University, University of the Federal Armed Forces Hamburg, Hamburg, Germany
| | - H Hölling
- Department of Epidemiology and Health Monitoring, Robert Koch Institute, Berlin, Germany
| | - U Ravens-Sieberer
- Department of Child and Adolescent Psychiatry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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5
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Wüstner A, Otto C, Klasen F, Westenhöfer J, Reiss F, Hölling H, Ravens-Sieberer U. Risk and resource factors for the development of depression during adolescence and young adulthood. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.1017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Depression is one of the most common mental disorders in adolescents and young adults worldwide, and causes severe impairments in psychological health, social functioning and employment. The identification of risk and resource factors for depression is an important research aim. The present study aims to investigate which individual, familial and social risk and resource factors in childhood and adolescence are associated with depressive symptoms five years later in a population-based cohort in Germany.
Methods
Analyses were performed using data from the longitudinal BELLA study. Data on risk and resource factors were collected among N = 632 children and adolescents aged 11 to 17 years. Depressive symptoms were measured five years later. The effects of risk and resource factors on depression were investigated using multivariate linear regression analyses. In subsequent models, we explored potential moderator effects of resource factors on the relationship between risk factors and depressive symptoms.
Results
A negative mother-child relationship was associated with stronger depressive symptoms in girls, while school stress was identified as a risk factor in boys. Peer competence was associated with fewer depressive symptoms in girls, and family cohesion served as a resource factor in boys. Moreover, self-efficacy moderated the association between negative mother-child relationship and depressive symptoms. Family cohesion acted as a moderator between peer problems and depressive symptoms.
Conclusions
Our findings provide evidence of gender-specific risk and resource factors for depressive symptoms. Individuals who are exposed to one of the identified risk factors must be monitored during the transition from childhood to adolescence and young adulthood. Gender-sensitive health promotion and early prevention programs are needed.
Key messages
Information concerning risk and resource factors for the development of depressive symptoms during adolescence and emerging adulthood are of high interest for public health, research and practice. The findings of the present study are of great relevance for the development of gender-sensitive health promotion and early prevention programs.
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Affiliation(s)
- A Wüstner
- Department of Child and Adolescent Psychiatry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - C Otto
- Department of Child and Adolescent Psychiatry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - F Klasen
- Department of Child and Adolescent Psychiatry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - J Westenhöfer
- Department of Health Sciences, Hamburg University of Applied Sciences, Hamburg, Germany
| | - F Reiss
- Department of Child and Adolescent Psychiatry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - H Hölling
- Department of Epidemiology and Health Monitoring, Robert Koch Institute, Berlin, Germany
| | - U Ravens-Sieberer
- Department of Child and Adolescent Psychiatry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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6
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Lee W, Otto C, Abdul K, Siegel D. 574 To assess the antifungal activity of Jublia® under real-world conditions. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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7
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Rikkert LG, Beekman P, Caro J, Coumans FAW, Enciso-Martinez A, Jenster G, Le Gac S, Lee W, van Leeuwen TG, Loozen GB, Nanou A, Nieuwland R, Offerhaus HL, Otto C, Pegtel DM, Piontek MC, van der Pol E, de Rond L, Roos WH, Schasfoort RBM, Wauben MHM, Zuilhof H, Terstappen LWMM. Cancer-ID: Toward Identification of Cancer by Tumor-Derived Extracellular Vesicles in Blood. Front Oncol 2020; 10:608. [PMID: 32582525 PMCID: PMC7287034 DOI: 10.3389/fonc.2020.00608] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/02/2020] [Indexed: 12/19/2022] Open
Abstract
Extracellular vesicles (EVs) have great potential as biomarkers since their composition and concentration in biofluids are disease state dependent and their cargo can contain disease-related information. Large tumor-derived EVs (tdEVs, >1 μm) in blood from cancer patients are associated with poor outcome, and changes in their number can be used to monitor therapy effectiveness. Whereas, small tumor-derived EVs (<1 μm) are likely to outnumber their larger counterparts, thereby offering better statistical significance, identification and quantification of small tdEVs are more challenging. In the blood of cancer patients, a subpopulation of EVs originate from tumor cells, but these EVs are outnumbered by non-EV particles and EVs from other origin. In the Dutch NWO Perspectief Cancer-ID program, we developed and evaluated detection and characterization techniques to distinguish EVs from non-EV particles and other EVs. Despite low signal amplitudes, we identified characteristics of these small tdEVs that may enable the enumeration of small tdEVs and extract relevant information. The insights obtained from Cancer-ID can help to explore the full potential of tdEVs in the clinic.
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Affiliation(s)
- L G Rikkert
- Department of Medical Cell Biophysics, University of Twente, Enschede, Netherlands.,Laboratory of Experimental Clinical Chemistry, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.,Vesicle Observation Center, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - P Beekman
- Department of Medical Cell Biophysics, University of Twente, Enschede, Netherlands.,Laboratory of Organic Chemistry, Wageningen University, Wageningen, Netherlands.,Applied Microfluidics for Bioengineering Research, University of Twente, Enschede, Netherlands
| | - J Caro
- Department of Imaging Physics, Delft University of Technology, Delft, Netherlands
| | - F A W Coumans
- Laboratory of Experimental Clinical Chemistry, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.,Vesicle Observation Center, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - A Enciso-Martinez
- Department of Medical Cell Biophysics, University of Twente, Enschede, Netherlands
| | - G Jenster
- Department of Urology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - S Le Gac
- Applied Microfluidics for Bioengineering Research, University of Twente, Enschede, Netherlands
| | - W Lee
- Optical Sciences Group, Department of Science and Technology, University of Twente, Enschede, Netherlands
| | - T G van Leeuwen
- Vesicle Observation Center, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.,Biomedical Engineering and Physics, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - G B Loozen
- Department of Imaging Physics, Delft University of Technology, Delft, Netherlands
| | - A Nanou
- Department of Medical Cell Biophysics, University of Twente, Enschede, Netherlands
| | - R Nieuwland
- Laboratory of Experimental Clinical Chemistry, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.,Vesicle Observation Center, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - H L Offerhaus
- Optical Sciences Group, Department of Science and Technology, University of Twente, Enschede, Netherlands
| | - C Otto
- Department of Medical Cell Biophysics, University of Twente, Enschede, Netherlands
| | - D M Pegtel
- Department of Pathology, Amsterdam UMC, VU University Amsterdam, Amsterdam, Netherlands
| | - M C Piontek
- Molecular Biophysics, Zernike Institute, University of Groningen, Groningen, Netherlands
| | - E van der Pol
- Laboratory of Experimental Clinical Chemistry, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.,Vesicle Observation Center, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.,Biomedical Engineering and Physics, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - L de Rond
- Laboratory of Experimental Clinical Chemistry, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.,Vesicle Observation Center, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.,Biomedical Engineering and Physics, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - W H Roos
- Molecular Biophysics, Zernike Institute, University of Groningen, Groningen, Netherlands
| | - R B M Schasfoort
- Department of Medical Cell Biophysics, University of Twente, Enschede, Netherlands
| | - M H M Wauben
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - H Zuilhof
- Laboratory of Organic Chemistry, Wageningen University, Wageningen, Netherlands.,School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin, China
| | - L W M M Terstappen
- Department of Medical Cell Biophysics, University of Twente, Enschede, Netherlands
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8
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Otto C, Schmidt S, Kastner C, Denk S, Kettler J, Müller N, Germer CT, Wolf E, Gallant P, Wiegering A. Targeting bromodomain-containing protein 4 (BRD4) inhibits MYC expression in colorectal cancer cells. Neoplasia 2019; 21:1110-1120. [PMID: 31734632 PMCID: PMC6888720 DOI: 10.1016/j.neo.2019.10.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/11/2019] [Accepted: 10/14/2019] [Indexed: 01/23/2023] Open
Abstract
The transcriptional regulator BRD4 has been shown to be important for the expression of several oncogenes including MYC. Inhibiting of BRD4 has broad antiproliferative activity in different cancer cell types. The small molecule JQ1 blocks the interaction of BRD4 with acetylated histones leading to transcriptional modulation. Depleting BRD4 via engineered bifunctional small molecules named PROTACs (proteolysis targeting chimeras) represents the next-generation approach to JQ1-mediated BRD4 inhibition. PROTACs trigger BRD4 for proteasomale degradation by recruiting E3 ligases. The aim of this study was therefore to validate the importance of BRD4 as a relevant target in colorectal cancer (CRC) cells and to compare the efficacy of BRD4 inhibition with BRD4 degradation on downregulating MYC expression. JQ1 induced a downregulation of both MYC mRNA and MYC protein associated with an antiproliferative phenotype in CRC cells. dBET1 and MZ1 induced degradation of BRD4 followed by a reduction in MYC expression and CRC cell proliferation. In SW480 cells, where dBET1 failed, we found significantly lower levels of the E3 ligase cereblon, which is essential for dBET1-induced BRD4 degradation. To gain mechanistic insight into the unresponsiveness to dBET1, we generated dBET1-resistant LS174t cells and found a strong downregulation of cereblon protein. These findings suggest that inhibition of BRD4 by JQ1 and degradation of BRD4 by dBET1 and MZ1 are powerful tools for reducing MYC expression and CRC cell proliferation. In addition, downregulation of cereblon may be an important mechanism for developing dBET1 resistance, which can be evaded by incubating dBET1-resistant cells with JQ1 or MZ1.
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Affiliation(s)
- C Otto
- Experimental Visceral Surgery, Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery (Department of Surgery I), University Hospital Würzburg, Germany
| | - S Schmidt
- University of Würzburg, Department of Biochemistry and Molecular Biology, Biocenter, Würzburg, Germany
| | - C Kastner
- University of Würzburg, Department of Biochemistry and Molecular Biology, Biocenter, Würzburg, Germany; Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery (Department of Surgery I), University Hospital Würzburg, Germany
| | - S Denk
- University of Würzburg, Department of Biochemistry and Molecular Biology, Biocenter, Würzburg, Germany
| | - J Kettler
- Experimental Visceral Surgery, Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery (Department of Surgery I), University Hospital Würzburg, Germany
| | - N Müller
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - C T Germer
- Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery (Department of Surgery I), University Hospital Würzburg, Germany; University of Würzburg, Comprehensive Cancer Center Mainfranken, Würzburg, Germany
| | - E Wolf
- University of Würzburg, Department of Biochemistry and Molecular Biology, Biocenter, Würzburg, Germany
| | - P Gallant
- University of Würzburg, Department of Biochemistry and Molecular Biology, Biocenter, Würzburg, Germany
| | - A Wiegering
- University of Würzburg, Department of Biochemistry and Molecular Biology, Biocenter, Würzburg, Germany; Department of General, Visceral, Transplantation, Vascular and Pediatric Surgery (Department of Surgery I), University Hospital Würzburg, Germany; University of Würzburg, Comprehensive Cancer Center Mainfranken, Würzburg, Germany.
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9
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Duengen HD, Kim RJ, Zahger D, Orvin K, Admon D, Kettner J, Shimony A, Otto C, Becka M, Kanefendt F, Iniguez Romo A, Hasin T, Ostadal P, Calvo Rojas G, Senni M. 87Effects of the chymase inhibitor fulacimstat on adverse cardiac remodelling after acute myocardial infarction - Results of the CHIARA MIA 2 trial. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Adverse cardiac remodelling represents the most important risk factor for the development of heart failure (HF) after myocardial infarction (MI). Chymase is a protease that generates locally pro-fibrotic factors such as angiotensin II, TGFβ, and matrixmetallproteases that contribute to tissue remodelling.
Purpose
This phase IIa study examined the effects of the chymase inhibitor fulacimstat on functional parameters of adverse cardiac remodelling after acute MI.
Methods
A double-blind, multinational, randomized, placebo-controlled study was performed in patients after first STEMI who were treated with primary percutaneous coronary intervention within 24h of symptom onset. To enrich for patients at risk of adverse remodelling, main inclusion criteria were a left-ventricular ejection fraction (LVEF)≤45% and an infarct size>10% on day 5 to 9 post MI as measured by cardiac MRI. On day 6 to 12 post MI, patients were randomized to treatment with either 25 mg fulacimstat (n=54) or placebo (n=53) twice daily on top of standard of care. The changes in LVEF, LVEDVI, and LVESVI from baseline to 6 months of treatment were analyzed by a central blinded cardiac MRI core laboratory.
Results
Fulacimstat was safe and well tolerated, 64.8% of patients treated with fulacimstat and 75.5% of patients treated with placebo reported treatment emergent adverse events. Fulacimstat achieved exposures that were approximately 10-fold higher than those predicted to be required for minimal therapeutic activity. After six months of treatment, there were no effects of fulacimstat compared to placebo on the changes in LVEF, LVEDVI, and LVESVI (see Table).
Analysis of primary efficacy parameters Parameter Placebo Fulacimstat p-value LVEF (%) baseline 37.2±6.1 39.1±5.5 0.15 6 months 41.2±8.4 42.6±8.4 0.45 delta 4.0±5.0 3.5±5.4 0.69 LVEDVI (mL/m2) baseline 80.0±17.1 77.4±18.2 0.51 6 months 85.1±19.1 84.7±23.4 0.94 delta 5.1±18.9 7.3±13.3 0.54 LVESVI (mL/m2) baseline 50.5±13.0 47.3±12.3 0.26 6 months 51.1±16.9 49.6±18.1 0.71 delta 0.6±14.8 2.3±11.2 0.56 Data are given as mean ± standard deviation.
Conclusion
Fulacimstat was safe and well tolerated in patients with left-ventricular dysfunction (LVD) after first STEMI but had no effect on adverse cardiac remodelling in the experimental setting of this study.
Acknowledgement/Funding
The study was funded by its sponsor BAYER AG
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Affiliation(s)
- H D Duengen
- Charite - Campus Virchow-Klinikum (CVK), Department of Internal Medicine, Cardiology, Berlin, Germany
| | - R J Kim
- Duke University Medical Center, Duke Cardiovascular Magnetic Resonance Center, Durham, United States of America
| | - D Zahger
- Soroka University Medical Center, Beer Sheva, Israel
| | - K Orvin
- Rabin Medical Center - Beilinson Campus, Cardiology Division, Petah Tikva, Israel
| | - D Admon
- Hadassah Hebrew University Hospital Ein Kerem, Heart Institute, Jerusalem, Israel
| | - J Kettner
- Institute for Clinical and Experimental Medicine (IKEM), Prague, Czechia
| | - A Shimony
- Soroka University Medical Center, Beer Sheva, Israel
| | - C Otto
- BAYER AG, Experimental Medicine Hematology and Cardiology, Wuppertal, Germany
| | - M Becka
- BAYER AG, Research and Clinical Sciences Statistics, Wuppertal, Germany
| | - F Kanefendt
- BAYER AG, Clinical Pharmacokinetics, Wuppertal, Germany
| | - A Iniguez Romo
- Hospital Alvaro Cunqueiro, Servicio de la Cardiologia, Babio-Beade, Spain
| | - T Hasin
- Shaare Zedek Medical Center, Department of Cardiology, Jerusalem, Israel
| | - P Ostadal
- Nemocnice na Homolce, Prague, Czechia
| | | | - M Senni
- Ospedale Papa Giovanni XXIII, Bergamo, Italy
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10
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Abstract
Correlative and integrated scanning electron microscopy (SEM) and Raman micro-spectroscopy is presented that enables the characterization and identification of different cancer and non-cancer cells through SEM-Raman image cytometry. The hybrid microscopy system enables the acquisition of high resolution SEM images of uncoated cells and the spatial correlation with chemical information as obtained from Raman micro-spectroscopic imaging. A sample preparation protocol and a workflow are presented that are compatible with the demands of hybrid SEM-Raman microscopy. Stainless steel cell substrates were used that are both conductive and give a low optical response in Raman scattering. Correlative and integrated SEM-Raman micro-spectroscopy is illustrated with cells from blood and cells from a SKBR-3 breast cancer cell line.
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Affiliation(s)
- A Enciso-Martinez
- Medical Cell Biophysics group, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands.
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11
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Stammes MA, Bugby SL, Porta T, Pierzchalski K, Devling T, Otto C, Dijkstra J, Vahrmeijer AL, de Geus-Oei LF, Mieog JSD. Modalities for image- and molecular-guided cancer surgery. Br J Surg 2018; 105:e69-e83. [PMID: 29341161 DOI: 10.1002/bjs.10789] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 10/25/2017] [Accepted: 11/05/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Surgery is the cornerstone of treatment for many solid tumours. A wide variety of imaging modalities are available before surgery for staging, although surgeons still rely primarily on visual and haptic cues in the operating environment. Image and molecular guidance might improve the adequacy of resection through enhanced tumour definition and detection of aberrant deposits. Intraoperative modalities available for image- and molecular-guided cancer surgery are reviewed here. METHODS Intraoperative cancer detection techniques were identified through a systematic literature search, with selection of peer-reviewed publications from January 2012 to January 2017. Modalities were reviewed, described and compared according to 25 predefined characteristics. To summarize the data in a comparable way, a three-point rating scale was applied to quantitative characteristics. RESULTS The search identified ten image- and molecular-guided surgery techniques, which can be divided into four groups: conventional, optical, nuclear and endogenous reflectance modalities. Conventional techniques are the most well known imaging modalities, but unfortunately have the drawback of a defined resolution and long acquisition time. Optical imaging is a real-time modality; however, the penetration depth is limited. Nuclear modalities have excellent penetration depth, but their intraoperative use is limited by the use of radioactivity. Endogenous reflectance modalities provide high resolution, although with a narrow field of view. CONCLUSION Each modality has its strengths and weaknesses; no single technique will be suitable for all surgical procedures. Strict selection of modalities per cancer type and surgical requirements is required as well as combining techniques to find the optimal balance.
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Affiliation(s)
- M A Stammes
- Department of Radiology, Leiden University Medical Centre, Leiden, The Netherlands.,Percuros, Enschede, The Netherlands
| | - S L Bugby
- Space Research Centre, Department of Physics and Astronomy, University of Leicester, Leicester, UK
| | - T Porta
- Maastricht MultiModal Molecular Imaging Institute (M4I), Division of Imaging Mass Spectrometry, Maastricht University, Maastricht, The Netherlands
| | - K Pierzchalski
- Maastricht MultiModal Molecular Imaging Institute (M4I), Division of Imaging Mass Spectrometry, Maastricht University, Maastricht, The Netherlands
| | | | - C Otto
- Medical Cell Bio Physics, University of Twente, Enschede, The Netherlands
| | - J Dijkstra
- Department of Radiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - A L Vahrmeijer
- Department of Surgery, Leiden University Medical Centre, Leiden, The Netherlands
| | - L-F de Geus-Oei
- Department of Radiology, Leiden University Medical Centre, Leiden, The Netherlands.,Biomedical Photonic Imaging Group, MIRA Institute, University of Twente, Enschede, The Netherlands
| | - J S D Mieog
- Department of Surgery, Leiden University Medical Centre, Leiden, The Netherlands
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Abstract
A Raman microscope integrated with a scanning electron microscope was used to investigate plasmonic structures by correlative SEM-SERS analysis. The integrated Raman-SEM microscope combines high-resolution electron microscopy information with SERS signal enhancement from selected nanostructures with adsorbed Raman reporter molecules. Correlative analysis is performed for dimers of two gold nanospheres. Dimers were selected on the basis of SEM images from multi aggregate samples. The effect of the orientation of the dimer with respect to the polarization state of the laser light and the effect of the particle gap size on the Raman signal intensity is observed. Additionally, calculations are performed to simulate the electric near field enhancement. These simulations are based on the morphologies observed by electron microscopy. In this way the experiments are compared with the enhancement factor calculated with near field simulations and are subsequently used to quantify the SERS enhancement factor. Large differences between experimentally observed and calculated enhancement factors are regularly detected, a phenomenon caused by nanoscale differences between the real and 'simplified' simulated structures. Quantitative SERS experiments reveal the structure induced enhancement factor, ranging from ∼200 to ∼20 000, averaged over the full nanostructure surface. The results demonstrate correlative Raman-SEM microscopy for the quantitative analysis of plasmonic particles and structures, thus enabling a new analytical method in the field of SERS and plasmonics.
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Affiliation(s)
- F J Timmermans
- Medical Cell BioPhysics Group, MIRA Institute, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands.
| | - A T M Lenferink
- Medical Cell BioPhysics Group, MIRA Institute, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands.
| | - H A G M van Wolferen
- Transducers Science and Technology, MESA+ Institute, University of Twente, The Netherlands
| | - C Otto
- Medical Cell BioPhysics Group, MIRA Institute, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands.
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13
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Abstract
Given a large collection of unlabeled face images, we address the problem of clustering faces into an unknown number of identities. This problem is of interest in social media, law enforcement, and other applications, where the number of faces can be of the order of hundreds of million, while the number of identities (clusters) can range from a few thousand to millions. To address the challenges of run-time complexity and cluster quality, we present an approximate Rank-Order clustering algorithm that performs better than popular clustering algorithms (k-Means and Spectral). Our experiments include clustering up to 123 million face images into over 10 million clusters. Clustering results are analyzed in terms of external (known face labels) and internal (unknown face labels) quality measures, and run-time. Our algorithm achieves an F-measure of 0.87 on the LFW benchmark (13 K faces of 5,749 individuals), which drops to 0.27 on the largest dataset considered (13 K faces in LFW + 123M distractor images). Additionally, we show that frames in the YouTube benchmark can be clustered with an F-measure of 0.71. An internal per-cluster quality measure is developed to rank individual clusters for manual exploration of high quality clusters that are compact and isolated.
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Abstract
Given the prevalence of social media websites, one challenge facing computer vision researchers is to devise methods to search for persons of interest among the billions of shared photos on these websites. Despite significant progress in face recognition, searching a large collection of unconstrained face images remains a difficult problem. To address this challenge, we propose a face search system which combines a fast search procedure, coupled with a state-of-the-art commercial off the shelf (COTS) matcher, in a cascaded framework. Given a probe face, we first filter the large gallery of photos to find the top- k most similar faces using features learned by a convolutional neural network. The k retrieved candidates are re-ranked by combining similarities based on deep features and those output by the COTS matcher. We evaluate the proposed face search system on a gallery containing 80 million web-downloaded face images. Experimental results demonstrate that while the deep features perform worse than the COTS matcher on a mugshot dataset (93.7 percent versus 98.6 percent TAR@FAR of 0.01 percent), fusing the deep features with the COTS matcher improves the overall performance ( 99.5 percent TAR@FAR of 0.01 percent). This shows that the learned deep features provide complementary information over representations used in state-of-the-art face matchers. On the unconstrained face image benchmarks, the performance of the learned deep features is competitive with reported accuracies. LFW database: 98.20 percent accuracy under the standard protocol and 88.03 percent TAR@FAR of 0.1 percent under the BLUFR protocol; IJB-A benchmark: 51.0 percent TAR@FAR of 0.1 percent (verification), rank 1 retrieval of 82.2 percent (closed-set search), 61.5 percent FNIR@FAR of 1 percent (open-set search). The proposed face search system offers an excellent trade-off between accuracy and scalability on galleries with millions of images. Additionally, in a face search experiment involving photos of the Tsarnaev brothers, convicted of the Boston Marathon bombing, the proposed cascade face search system could find the younger brother's (Dzhokhar Tsarnaev) photo at rank 1 in 1 second on a 5 M gallery and at rank 8 in 7 seconds on an 80 M gallery.
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15
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Otto C, Lindner B, Gleich S. Multiresistente gramnegative Erreger (MRGN) – neue Meldepflichten nach dem IfSG. Daten 2016 in München und Probleme bei der praktischen Umsetzung. Gesundheitswesen 2017. [DOI: 10.1055/s-0037-1601914] [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: 10/19/2022]
Affiliation(s)
- C Otto
- Referat für Gesundheit und Umwelt der Landeshauptstadt München, München
| | - B Lindner
- Referat für Gesundheit und Umwelt der Landeshauptstadt München, München
| | - S Gleich
- Referat für Gesundheit und Umwelt der Landeshauptstadt München, München
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Timmermans FJ, Chang L, van Wolferen HAGM, Lenferink ATM, Otto C. Observation of whispering gallery modes through electron beam-induced deposition. Opt Lett 2017; 42:1337-1340. [PMID: 28362763 DOI: 10.1364/ol.42.001337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Surprisingly intense spectra of whispering gallery modes were observed in polymer microbeads after illumination with electrons in a scanning electron microscope and subsequent laser illumination and spectral analysis. It will be proposed that whispering gallery mode resonances became visible after local deposition of hydrocarbon material through electron beam-induced deposition. The illumination of deposited material with a near infrared laser generates a broad light spectrum, acting as a local "white light" source that couples, for favorable wavelengths, with the WGM sustained by the sphere. This facilitates a spectroscopic analysis of the WGM and provides the Q-factor and free spectral range for all investigated particles. The analysis by an integrated SEM and Raman micro-spectrometer offers a direct approach to the analysis of WGM resonators as they are, for instance, used in sensing.
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Klasen F, Meyrose AK, Otto C, Reiss F, Ravens-Sieberer U. Psychische Auffälligkeiten von Kindern und Jugendlichen in Deutschland. Monatsschr Kinderheilkd 2017. [DOI: 10.1007/s00112-017-0270-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Barthel D, Otto C, Nolte S, Meyrose AK, Fischer F, Devine J, Walter O, Mierke A, Fischer KI, Thyen U, Klein M, Ankermann T, Rose M, Ravens-Sieberer U. The validation of a computer-adaptive test (CAT) for assessing health-related quality of life in children and adolescents in a clinical sample: study design, methods and first results of the Kids-CAT study. Qual Life Res 2016; 26:1105-1117. [PMID: 27830512 DOI: 10.1007/s11136-016-1437-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2016] [Indexed: 01/06/2023]
Abstract
PURPOSE Recently, we developed a computer-adaptive test (CAT) for assessing health-related quality of life (HRQoL) in children and adolescents: the Kids-CAT. It measures five generic HRQoL dimensions. The aims of this article were (1) to present the study design and (2) to investigate its psychometric properties in a clinical setting. METHODS The Kids-CAT study is a longitudinal prospective study with eight measurements over one year at two University Medical Centers in Germany. For validating the Kids-CAT, 270 consecutive 7- to 17-year-old patients with asthma (n = 52), diabetes (n = 182) or juvenile arthritis (n = 36) answered well-established HRQoL instruments (Pediatric Quality of Life Inventory™ (PedsQL), KIDSCREEN-27) and scales measuring related constructs (e.g., social support, self-efficacy). Measurement precision, test-retest reliability, convergent and discriminant validity were investigated. RESULTS The mean standard error of measurement ranged between .38 and .49 for the five dimensions, which equals a reliability between .86 and .76, respectively. The Kids-CAT measured most reliably in the lower HRQoL range. Convergent validity was supported by moderate to high correlations of the Kids-CAT dimensions with corresponding PedsQL dimensions ranging between .52 and .72. A lower correlation was found between the social dimensions of both instruments. Discriminant validity was confirmed by lower correlations with non-corresponding subscales of the PedsQL. CONCLUSIONS The Kids-CAT measures pediatric HRQoL reliably, particularly in lower areas of HRQoL. Its test-retest reliability should be re-investigated in future studies. The validity of the instrument was demonstrated. Overall, results suggest that the Kids-CAT is a promising candidate for detecting psychosocial needs in chronically ill children.
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Affiliation(s)
- D Barthel
- Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, Research Unit Child Public Health, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - C Otto
- Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, Research Unit Child Public Health, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - S Nolte
- Department of Psychosomatic Medicine, Center of Internal Medicine and Dermatology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.,Public Health Innovation, Population Health Strategic Research Centre, School of Health and Social Development, Deakin University, 221 Burwood Highway, Melbourne, VIC, 3125, Australia
| | - A-K Meyrose
- Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, Research Unit Child Public Health, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - F Fischer
- Department of Psychosomatic Medicine, Center of Internal Medicine and Dermatology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.,Institute for Social Medicine, Epidemiology and Health Economics, Charité - Universitätsmedizin Berlin, Luisenstraße 57, 10117, Berlin, Germany
| | - J Devine
- Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, Research Unit Child Public Health, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany
| | - O Walter
- Department of Psychosomatic Medicine, Center of Internal Medicine and Dermatology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - A Mierke
- Department of Psychosomatic Medicine, Center of Internal Medicine and Dermatology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - K I Fischer
- Department of Psychosomatic Medicine, Center of Internal Medicine and Dermatology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - U Thyen
- Hospital for Pediatrics and Adolescent Medicine, University of Lübeck, Ratzeburger Allee 160, 23538, Lübeck, Germany
| | - M Klein
- Department of Pediatrics, University Medical Center Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, House 9, 24105, Kiel, Germany
| | - T Ankermann
- Department of Pediatrics, University Medical Center Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, House 9, 24105, Kiel, Germany
| | - M Rose
- Department of Psychosomatic Medicine, Center of Internal Medicine and Dermatology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.,Department of Quantitative Health Sciences, University of Massachusetts Medical School, 368 Plantation Street, Worcester, MA, 01605, USA
| | - U Ravens-Sieberer
- Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, Research Unit Child Public Health, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Germany.
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Harris A, Krieger E, Kim M, Cawley P, Owens D, Hamilton-Craig C, Maki J, Otto C. Prediction of Clinical Outcomes in Chronic Aortic and Mitral Regurgitation Using Echocardiographic and Cardiac Magnetic Resonance Measures of Regurgitant Severity and Ventricular Size. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Müller J, Müller S, Stoll J, Fröhlich K, Otto C, Mayer F. Back pain prevalence in adolescent athletes. Scand J Med Sci Sports 2016; 27:448-454. [DOI: 10.1111/sms.12664] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2016] [Indexed: 11/28/2022]
Affiliation(s)
- J. Müller
- Sports Medicine & Sports Orthopaedics; University Outpatient Clinic; University of Potsdam; Potsdam Germany
| | - S. Müller
- Sports Medicine & Sports Orthopaedics; University Outpatient Clinic; University of Potsdam; Potsdam Germany
| | - J. Stoll
- Sports Medicine & Sports Orthopaedics; University Outpatient Clinic; University of Potsdam; Potsdam Germany
| | - K. Fröhlich
- Sports Medicine & Sports Orthopaedics; University Outpatient Clinic; University of Potsdam; Potsdam Germany
| | - C. Otto
- Sports Medicine & Sports Orthopaedics; University Outpatient Clinic; University of Potsdam; Potsdam Germany
| | - F. Mayer
- Sports Medicine & Sports Orthopaedics; University Outpatient Clinic; University of Potsdam; Potsdam Germany
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22
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Barthel D, Fischer KI, Nolte S, Otto C, Meyrose AK, Reisinger S, Dabs M, Thyen U, Klein M, Muehlan H, Ankermann T, Walter O, Rose M, Ravens-Sieberer U. Implementation of the Kids-CAT in clinical settings: a newly developed computer-adaptive test to facilitate the assessment of patient-reported outcomes of children and adolescents in clinical practice in Germany. Qual Life Res 2016; 25:585-94. [PMID: 26790429 DOI: 10.1007/s11136-015-1219-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2015] [Indexed: 11/25/2022]
Abstract
PURPOSE To describe the implementation process of a computer-adaptive test (CAT) for measuring health-related quality of life (HRQoL) of children and adolescents in two pediatric clinics in Germany. The study focuses on the feasibility and user experience with the Kids-CAT, particularly the patients' experience with the tool and the pediatricians' experience with the Kids-CAT Report. METHODS The Kids-CAT was completed by 312 children and adolescents with asthma, diabetes or rheumatoid arthritis. The test was applied during four clinical visits over a 1-year period. A feedback report with the test results was made available to the pediatricians. To assess both feasibility and acceptability, a multimethod research design was used. To assess the patients' experience with the tool, the children and adolescents completed a questionnaire. To assess the clinicians' experience, two focus groups were conducted with eight pediatricians. RESULTS The children and adolescents indicated that the Kids-CAT was easy to complete. All pediatricians reported that the Kids-CAT was straightforward and easy to understand and integrate into clinical practice; they also expressed that routine implementation of the tool would be desirable and that the report was a valuable source of information, facilitating the assessment of self-reported HRQoL of their patients. CONCLUSIONS The Kids-CAT was considered an efficient and valuable tool for assessing HRQoL in children and adolescents. The Kids-CAT Report promises to be a useful adjunct to standard clinical care with the potential to improve patient-physician communication, enabling pediatricians to evaluate and monitor their young patients' self-reported HRQoL.
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Affiliation(s)
- D Barthel
- Research Unit Child Public Health, Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
| | - K I Fischer
- Department of Psychosomatic Medicine, Center of Internal Medicine and Dermatology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - S Nolte
- Department of Psychosomatic Medicine, Center of Internal Medicine and Dermatology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.,Public Health Innovation, Population Health Strategic Research Centre, School of Health and Social Development, Deakin University, Burwood, VIC, 3125, Australia
| | - C Otto
- Research Unit Child Public Health, Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - A-K Meyrose
- Research Unit Child Public Health, Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - S Reisinger
- Research Unit Child Public Health, Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - M Dabs
- Research Unit Child Public Health, Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - U Thyen
- Hospital for Pediatrics and Adolescent Medicine, University Medical Center Schleswig-Holstein, Ratzeburger Allee 160, 23538, Lübeck, Germany
| | - M Klein
- Department of General Pediatrics, University Medical Center Schleswig-Holstein, Arnold-Heller-Straße 3, House 9, 24105, Kiel, Germany
| | - H Muehlan
- Department Health and Prevention, Ernst-Moritz-Arndt University, Robert-Blum-Str. 13, 17487, Greifswald, Germany
| | - T Ankermann
- Department of General Pediatrics, University Medical Center Schleswig-Holstein, Arnold-Heller-Straße 3, House 9, 24105, Kiel, Germany
| | - O Walter
- Department of Psychosomatic Medicine, Center of Internal Medicine and Dermatology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - M Rose
- Department of Psychosomatic Medicine, Center of Internal Medicine and Dermatology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.,Department of Quantitative Health Sciences, University of Massachusetts Medical School, 368 Plantation Street, Worcester, MA, 01605, USA
| | - U Ravens-Sieberer
- Research Unit Child Public Health, Department of Child and Adolescent Psychiatry, Psychotherapy, and Psychosomatics, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
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Han H, Otto C, Liu X, Jain AK. Demographic Estimation from Face Images: Human vs. Machine Performance. IEEE Trans Pattern Anal Mach Intell 2015; 37:1148-61. [PMID: 26357339 DOI: 10.1109/tpami.2014.2362759] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Demographic estimation entails automatic estimation of age, gender and race of a person from his face image, which has many potential applications ranging from forensics to social media. Automatic demographic estimation, particularly age estimation, remains a challenging problem because persons belonging to the same demographic group can be vastly different in their facial appearances due to intrinsic and extrinsic factors. In this paper, we present a generic framework for automatic demographic (age, gender and race) estimation. Given a face image, we first extract demographic informative features via a boosting algorithm, and then employ a hierarchical approach consisting of between-group classification, and within-group regression. Quality assessment is also developed to identify low-quality face images that are difficult to obtain reliable demographic estimates. Experimental results on a diverse set of face image databases, FG-NET (1K images), FERET (3K images), MORPH II (75K images), PCSO (100K images), and a subset of LFW (4K images), show that the proposed approach has superior performance compared to the state of the art. Finally, we use crowdsourcing to study the human perception ability of estimating demographics from face images. A side-by-side comparison of the demographic estimates from crowdsourced data and the proposed algorithm provides a number of insights into this challenging problem.
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Abstract
New developments in the field of microscopy enable to acquire increasing amounts of information from large sample areas and at an increased resolution. Depending on the nature of the technique, the information may reveal morphological, structural, chemical, and still other sample characteristics. In research fields, such as cell biology and materials science, there is an increasing demand to correlate these individual levels of information and in this way to obtain a better understanding of sample preparation and specific sample properties. To address this need, integrated systems were developed that combine nanometer resolution electron microscopes with optical microscopes, which produce chemically or label specific information through spectroscopy. The complementary information from electron microscopy and light microscopy presents an opportunity to investigate a broad range of sample properties in a correlated fashion. An important part of correlating the differences in information lies in bridging the different resolution and image contrast features. The trend to analyse samples using multiple correlated microscopes has resulted in a new research field. Current research is focused, for instance, on (a) the investigation of samples with nanometer scale distribution of inorganic and organic materials, (b) live cell analysis combined with electron microscopy, and (c) in situ spectroscopic and electron microscopy analysis of catalytic materials, but more areas will benefit from integrated correlative microscopy.
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Affiliation(s)
- F J Timmermans
- Medical Cell Biophysics Group, MIRA Institute, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - C Otto
- Medical Cell Biophysics Group, MIRA Institute, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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Vanna R, Ronchi P, Lenferink ATM, Tresoldi C, Morasso C, Mehn D, Bedoni M, Picciolini S, Terstappen LWMM, Ciceri F, Otto C, Gramatica F. Label-free imaging and identification of typical cells of acute myeloid leukaemia and myelodysplastic syndrome by Raman microspectroscopy. Analyst 2015; 140:1054-64. [DOI: 10.1039/c4an02127d] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [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
Heamatopoietic cancer cells from patients were objectively and accurately recognized by high-resolution Raman imaging and their characteristic Raman spectra.
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Otto C, Klingelhöffer C, Biggemann L, Melkus G, Mörchel P, Jürgens C, Gahn S, Kämmerer U. Experimentelle Untersuchungen zur Verstoffwechselung von Ketonkörpern und Laktat durch Tumorzellen des Gastrointestinaltrakts. Aktuel Ernahrungsmed 2014. [DOI: 10.1055/s-0033-1360007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- C. Otto
- Universitätsklinikum Würzburg, Chirurgische Klinik und Poliklinik, Experimentelle Chirurgie und Transplantationsimmunologie, Würzburg
| | - C. Klingelhöffer
- Universitätsklinikum Würzburg, Chirurgische Klinik und Poliklinik, Experimentelle Chirurgie und Transplantationsimmunologie, Würzburg
| | - L. Biggemann
- Universitätsklinikum Würzburg, Chirurgische Klinik und Poliklinik, Experimentelle Chirurgie und Transplantationsimmunologie, Würzburg
| | - G. Melkus
- Julius-Maximilians-Universität Würzburg, Fakultät für Physik und Astronomie, Experimentalphysik 5, Würzburg
| | - P. Mörchel
- Julius-Maximilians-Universität Würzburg, Fakultät für Physik und Astronomie, Experimentalphysik 5, Würzburg
| | - C. Jürgens
- University Nijmegen UMC St. Radboud, Medical Centre, 283 NCMLS Radboud Netherlands
| | - S. Gahn
- Universitätsklinikum Würzburg, Chirurgische Klinik und Poliklinik, Experimentelle Chirurgie und Transplantationsimmunologie, Würzburg
| | - U. Kämmerer
- Universitätsklinikum Würzburg, Frauenklinik und Poliklinik, Würzburg
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Herget GW, Otto C, Kurz P, Uhl M, Adler CP, Südkamp NP, Hauschild O. Epithelioid osteosarcoma of the scapula. Acta Chir Orthop Traumatol Cech 2014; 81:288-291. [PMID: 25137500] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Epithelioid and epithelial neoplasms of bone are rare. They include different epithelioid variants of vascular lesions, osteoblastoma, chondroblastoma and most importantly metastatic carcinoma. Up to now, only few cases of epithelioid osteosarcoma were described. In this case the authors report a 53-year-old patient presented with a medical history of chronic shoulder pain for 3 years. Magnetic resonance imaging (MRI and computed tomography (CT) showed a destructive, partially calcified osseous lesion of the scapula with expansion into the surrounding soft tissue, suggestive of a primary bone tumor. Histologically, the tumor consisted of epithelioid cells with expression of cytokeratine and the lesion was primarily diagnosed as metastatic carcinoma. With regard to the MRI morphology untypical for metastatic disease the histopathologic slides were re-evaluated and detection of tumor osteoid led to the diagnosis of epithelioid osteosarcoma. Chemotherapy was initiated, however follow-up imaging studies showed rapidly progressive disease of both primary tumor and lung metastases. In conclusion, epithelioid neoplasms of the bone are extremetumourly rare and must be distinguished from metastatic carcinoma. Despite the presence of cytokeratine positive cells a thorough histological evaluation is mandatory and osteoid detection is essential in order to establish the correct diagnosis and further treatment. Key words: osteosarcoma, epithelioid, aneurysmal bone cyst, chondrosarcoma, pathology, immunohistochemistry.
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Affiliation(s)
- G W Herget
- Clinic of Orthopaedics and Traumatology, University Medical Centre Freiburg, Freiburg, Germany
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Montoro Lopez M, Pons De Antonio I, Itziar Soto C, Florez Gomez R, Alonso Ladreda A, Rios Blanco J, Refoyo Salicio E, Moreno Yanguela M, Lopez Sendon J, Guzman Martinez G, Van De Heyning CM, Magne J, Pierard L, Bruyere P, Davin L, De Maeyer C, Paelinck B, Vrints C, Lancellotti P, Michalski B, Krzeminska-Pakula M, Lipiec P, Szymczyk E, Chrzanowski L, Kasprzak J, Leao RN, Florencio AF, Oliveira AR, Bento B, Lopes S, Calaca J, Palma Reis R, Krestjyaninov M, Gimaev R, Razin V, Arangalage D, Chiampan A, Cimadevilla C, Touati A, Himbert D, Brochet E, Iung B, Nataf P, Vahanian A, Messika-Zeitoun D, Guvenc T, Karacimen D, Erer H, Ilhan E, Sayar N, Karakus G, Eren M, Iriart X, Tafer N, Roubertie F, Mauriat P, Thambo J, Wang J, Fang F, Yip GW, Sanderson J, Feng W, Yu C, Lam Y, Assabiny A, Apor A, Nagy A, Vago H, Toth A, Merkely B, Kovacs A, Castaldi B, Vida V, Guariento A, Padalino M, Cerutti A, Maschietto N, Biffanti R, Reffo E, Stellin G, Milanesi O, Baronaite-Dudoniene K, Urbaite L, Smalinskas V, Veisaite R, Vasylius T, Vaskelyte J, Puodziukynas A, Wieczorek J, Rybicka-Musialik A, Berger-Kucza A, Hoffmann A, Wnuk-Wojnar A, Mizia-Stec K, Melao F, Ribeiro V, Amorim S, Araujo C, Torres J, Cardoso J, Pinho P, Maciel M, Storsten P, Eriksen M, Boe E, Estensen M, Erikssen G, Smiseth O, Skulstad H, Miglioranza M, Gargani L, Sant`Anna R, Rover M, Martins V, Mantovanni A, Kalil R, Leiria T, Luo X, Fang F, Lee P, Zhang Z, Lam Y, Sanderson J, Kwong JS, Yu C, Borowiec A, Dabrowski R, Wozniak J, Jasek S, Chwyczko T, Kowalik I, Janas J, Musiej-Nowakowska E, Szwed H, Palinsky M, Petrovicova J, Pirscova M, Baricevic Z, Lovric D, Cikes M, Skoric B, Ljubas Macek J, Reskovic Luksic V, Separovic Hanzevacki J, Milicic D, Elmissiri A, El Shahid G, Abdal-Wahhab S, Vural MG, Yilmaz M, Cetin S, Akdemir R, Yoldas TK, Yeter E, Karamanou A, Hamodraka E, Lekakis I, Paraskevaidis I, Kremastinos D, Appiah-Dwomoh EK, Wang V, Otto C, Mayar F, Bonaventura K, Sunman H, Canpolat U, Kuyumcu M, Yorgun H, Sahiner L, Ozer N. Club 35 Poster Session Wednesday 11 December: 11/12/2013, 09:30-16:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet213] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Scharhag-Rosenberger F, Wochatz M, Otto C, Cassel M, Mayer F, Scharhag J. Blood lactate concentrations are mildly affected by mobile gas exchange measurements. Int J Sports Med 2013; 35:590-4. [PMID: 24258472 DOI: 10.1055/s-0033-1354386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We sought to investigate the effects of wearing a mobile respiratory gas analysis system during a treadmill test on blood lactate (bLa) concentrations and commonly applied bLa thresholds. A total of 16 recreational athletes (31±3 years, VO2max: 58±6 ml · min(-1) · kg(-1)) performed one multistage treadmill test with and one without gas exchange measurements (GEM and noGEM). The whole bLa curve, the lactate threshold (LT), the individual anaerobic thresholds according to Stegmann (IATSt) and Dickhuth (IATDi), and a fixed bLa concentration of 4 mmol ∙ l(-1) (OBLA) were evaluated. The bLa curve was shifted slightly leftward in GEM compared to noGEM (P<0.05), whereas the heart rate response was not different between conditions (P=0.89). There was no difference between GEM and noGEM for LT (2.61±0.34 vs. 2.64±0.39 m · s(-1), P=0.49) and IATSt (3.47±0.42 vs. 3.55±0.47 m · s(-1), P=0.12). However, IATDi (3.57±0.39 vs. 3.66±0.44 m · s(-1), P<0.01) and OBLA (3.85±0.46 vs. 3.96±0.47 m · s(-1), P<0.01) occurred at slower running velocities in GEM. The bLa response to treadmill tests is mildly affected by wearing a mobile gas analysis system. This also applies to bLa thresholds located at higher exercise intensities. While the magnitude of the effects is of little importance for recreational athletes, it might be relevant for elite athletes and scientific studies.
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Affiliation(s)
- F Scharhag-Rosenberger
- University of Potsdam, University Outpatient Clinic, Sports Medicine & Sports Orthopaedics, Potsdam, Germany
| | - M Wochatz
- University of Potsdam, University Outpatient Clinic, Sports Medicine & Sports Orthopaedics, Potsdam, Germany
| | - C Otto
- University of Potsdam, University Outpatient Clinic, Sports Medicine & Sports Orthopaedics, Potsdam, Germany
| | - M Cassel
- University of Potsdam, University Outpatient Clinic, Sports Medicine & Sports Orthopaedics, Potsdam, Germany
| | - F Mayer
- University of Potsdam, University Outpatient Clinic, Sports Medicine & Sports Orthopaedics, Potsdam, Germany
| | - J Scharhag
- University of Potsdam, University Outpatient Clinic, Sports Medicine & Sports Orthopaedics, Potsdam, Germany
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Ravens-Sieberer U, Klasen F, Bichmann H, Otto C, Quitmann J, Bullinger M. [Assessment of health-related quality of life in children and adolescents]. Gesundheitswesen 2013; 75:667-78. [PMID: 24129907 DOI: 10.1055/s-0033-1349555] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- U Ravens-Sieberer
- Universitätsklinikum Hamburg-Eppendorf, Klinik für Kinder- und Jugendpsychiatrie, -psychotherapie und -psychosomatik
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Ataç D, Gang T, Yilmaz MD, Bose SK, Lenferink ATM, Otto C, de Jong MP, Huskens J, van der Wiel WG. Tuning the Kondo effect in thin Au films by depositing a thin layer of Au on molecular spin-dopants. Nanotechnology 2013; 24:375204. [PMID: 23975183 DOI: 10.1088/0957-4484/24/37/375204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report on the tuning of the Kondo effect in thin Au films containing a monolayer of cobalt(II) terpyridine complexes by altering the ligand structure around the Co(2+) ions by depositing a thin Au capping layer on top of the monolayer on Au by magnetron sputtering (more energetic) and e-beam evaporation (softer). We show that the Kondo effect is slightly enhanced with respect to that of the uncapped film when the cap is deposited by evaporation, and significantly enhanced when magnetron sputtering is used. The Kondo temperature (TK) increases from 3 to 4.2/6.2 K for the evaporated/sputtered caps. X-ray absorption spectroscopy and surface-enhanced Raman spectroscopy investigation showed that the organic ligands remain intact upon Au e-beam evaporation; however, sputtering inflicts significant change in the Co(2+) electronic environment. The location of the monolayer-on the surface or embedded in the film-has a small effect. However, the damage of Co-N bonds induced by sputtering has a drastic effect on the increase of the impurity-electron interaction. This opens up the way for tuning of the magnetic impurity states, e.g. spin quantum number, binding energy with respect to the host Fermi energy, and overlap via the ligand structure around the ions.
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Affiliation(s)
- D Ataç
- NanoElectronics Group, MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands
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Knöll P, Oppermann J, Vehreschild J, Beyer F, Kaulhausen T, Siewe J, Stein G, Otto C, Cornely O, Eysel P, Wyen H, Jakob V, Neugebauer E, Zarghooni K. [Rotating physician in CHIR-Net. Evaluation of the curriculum]. Chirurg 2013; 84:1062-6. [PMID: 23754519 DOI: 10.1007/s00104-013-2519-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Conduction of and participation in clinical trials is a major challenge for surgical departments especially as job performance in hospitals has increased immensely during the last few years due to economic aspects. Only 11.7 % of published clinical studies are randomized controlled trials. As more and more treatment procedures in medicine have an evidence-based design the aim must be to present randomized controlled trials with an evidence level 1 for an increasing number of surgical therapies. Since 2006 the German National Surgical Trial Network (CHIR-Net) has been established and funded by the Federal Ministry of Education and Research (BMBF) in order to promote the realization of clinical trials in surgery. Thus the basis for the execution of high quality clinical studies in surgery has been extended further. In the individual CHIR-Net centers clinical trials are planned, organized and supervised which requires extensive knowledge of prevalent international standards. Teaching them to rotating physicians is one of the tasks of CHIR-Net. Therefore, a special curriculum for physicians has been developed which is evaluated in this study. MATERIALS AND METHODS From December 2010 to March 2011 an online survey of physicians who had previously rotated in the CHIR-Net was conducted, starting from the Surgical Regional Center (CRZ) Witten-Herdecke/Cologne. A total of 19 partly open and partly closed questions concerning the person, training, duration of the rotation, the funding applied for and the generated scientific output were surveyed. In addition, the curriculum for physicians and rotation time was checked by means of 17 questions in an evaluation matrix. RESULTS In this article the results of the rotating physician evaluation are presented. The satisfaction of physicians with the training during the rotation is presented as well as an analysis of how many of the submitted publications were directly supported by CHIR-Net. It was also evaluated how many rotating physicians requested funding and what the type of funding was. CONCLUSION With the rotating physician model of CHIR-Net a working concept for the training of surgeons in clinical research and the realization of randomized surgical trials was established as a viable solution for the difficult situation of clinical research in the surgical disciplines with the double burden of research and clinical practice.
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Affiliation(s)
- P Knöll
- Klinik für Orthopädie und Unfallchirurgie, Klinikum der Universität Köln, Josef-Stelzmann-Str. 9, 50937, Köln, Deutschland,
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Zimmermann M, Otto C, Gonzalez JB, Prokop S, Ruprecht K. Cellular origin and diagnostic significance of high-fluorescent cells in cerebrospinal fluid detected by the XE-5000 hematology analyzer. Int J Lab Hematol 2013; 35:580-8. [PMID: 23551597 DOI: 10.1111/ijlh.12090] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Accepted: 02/27/2013] [Indexed: 11/28/2022]
Abstract
INTRODUCTION The Sysmex XE-5000 is a blood and body fluid analyzer able to differentiate cells into polymorphonuclear, mononuclear, and high-fluorescent cells (HFC). The identity of HFC in cerebrospinal fluid (CSF) has been uncertain; however, compatible with their high nucleic acid content, HFC could represent intrathecal tumor cells. Here, we studied the cellular origin and the diagnostic significance of HFC in CSF. METHODS Results of CSF examinations with the XE-5000 were analyzed in 65 CSF samples with and 126 CSF samples without tumor cells, as defined by manual microscopy of CSF cytospin preparations. RESULTS The XE-5000 detected HFC in 51 of 65 tumor cell-positive and in 33 of 126 tumor cell-negative CSF samples (sensitivity: 78.5%, specificity: 73.8%, positive likelihood ratio: 3.0, negative likelihood ratio: 0.29). The percentages of HFC and tumor cells in CSF samples correlated (r² = 0.41, P < 0.0001). Tumor cells escaped detection by the XE-5000 especially in CSF samples with a low percentage of tumor cells. CONCLUSION While this study identifies tumor cells as the predominant correlate of HFC in CSF, it suggests that measuring HFC is not an appropriate diagnostic test for intrathecal tumor cells. However, if HFC are incidentally detected in CSF, further evaluation by CSF microscopy seems mandatory.
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Affiliation(s)
- M Zimmermann
- Institute for Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, Berlin, Germany; Labor Berlin - Charité Vivantes GmbH, Berlin, Germany
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Vogeser M, Kratzsch J, Otto C. Thyroidectomy due to interference of serum calcitonin measurement by heterophilic antibodies. Exp Clin Endocrinol Diabetes 2013. [DOI: 10.1055/s-0033-1336713] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Cantey PT, Kurian AK, Jefferson D, Moerbe MM, Marshall K, Blankenship WR, Rothbarth GR, Hwang J, Hall R, Yoder J, Brunkard J, Johnston S, Xiao L, Hill VR, Sarisky J, Zarate-Bermudez MA, Otto C, Hlavsa MC. Outbreak of cryptosporidiosis associated with a man-made chlorinated lake--Tarrant County, Texas, 2008. J Environ Health 2012; 75:14-19. [PMID: 23210393] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In July 2008, clusters of laboratory-confirmed cryptosporidiosis cases and reports of gastrointestinal illness in persons who visited a lake were reported to Tarrant County Public Health. In response, epidemiologic, laboratory, and environmental health investigations were initiated. A matched case-control study determined that swallowing the lake water was associated with illness (adjusted odds ratio = 16.3; 95% confidence interval: 2.5-infinity). The environmental health investigation narrowed down the potential sources of contamination. Laboratory testing detected Cryptosporidium hominis in case-patient stool specimens and Cryptosporidium species in lake water. It was only through the joint effort that epidemiologic, laboratory, and environmental health investigators could determine that >1 human diarrheal fecal incidents in the lake likely led to contamination of the water. This same collaborative effort will be needed to develop and maintain an effective national Model Aquatic Health Code.
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Affiliation(s)
- Paul T Cantey
- Division of Parasitic Diseases and Malaria, Center for Global Health/Centers for Disease Control and Prevention, Atlanta, GA 30333, USA.
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Jovanov E, Milenkovic A, Otto C, De Groen P, Johnson B, Warren S, Taibi G. A WBAN System for Ambulatory Monitoring of Physical Activity and Health Status: Applications and Challenges. Conf Proc IEEE Eng Med Biol Soc 2012; 2005:3810-3. [PMID: 17281060 DOI: 10.1109/iembs.2005.1615290] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Recent technological advances in sensors, low-power integrated circuits, and wireless communications have enabled the design of low-cost, miniature, lightweight, intelligent physiological sensor platforms that can be seamlessly integrated into a body area network for health monitoring. Wireless body area networks (WBANs) promise unobtrusive ambulatory health monitoring for extended periods of time and near real-time updates of patients' medical records through the Internet. A number of innovative systems for health monitoring have recently been proposed. However, they typically rely on custom communication protocols and hardware designs, lacking generality and flexibility. The lack of standard platforms, system software support, and standards makes these systems expensive. Bulky sensors, high price, and frequent battery changes are all likely to limit user compliance. To address some of these challenges, we prototyped a WBAN utilizing a common off-the-shelf wireless sensor platform with a ZigBee-compliant radio interface and an ultra low-power microcontroller. The standard platform interfaces to custom sensor boards that are equipped with accelerometers for motion monitoring and a bioamplifier for electrocardiogram or electromyogram monitoring. Software modules for on-board processing, communication, and network synchronization have been developed using the TinyOS operating system. Although the initial WBAN prototype targets ambulatory monitoring of user activity, the developed sensors can easily be adapted to monitor other physiological parameters. In this paper, we discuss initial results, implementation challenges, and the need for standardization in this dynamic and promising research field.
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Affiliation(s)
- E Jovanov
- Electrical and Computer Engineering, University of Alabama in Huntsville, Huntsville, Alabama, U.S.A
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Wang M, Yan G, Yue W, Siu C, Tse H, Perperidis A, Cusack D, White A, Macgillivray T, Mcdicken W, Anderson T, Ryabov V, Shurupov V, Suslova T, Markov V, Elmstedt N, Ferm Widlund K, Lind B, Brodin LA, Westgren M, Mantovani F, Barbieri A, Bursi F, Valenti C, Quaglia M, Modena M, Peluso D, Muraru D, Dal Bianco L, Beraldo M, Solda' E, Tuveri M, Cucchini U, Al Mamary A, Badano L, Iliceto S, Goncalves A, Almeria C, Marcos-Alberca P, Feltes G, Hernandez-Antolin R, Rodriguez H, Maroto L, Silva Cardoso J, Macaya C, Zamorano J, Squarciotta S, Innocenti F, Guzzo A, Bianchi S, Lazzeretti D, De Villa E, Vicidomini S, Del Taglia B, Donnini C, Pini R, Mennie C, Salmasi AM, Kutyifa V, Nagy V, Edes E, Apor A, Merkely B, Nyrnes S, Lovstakken L, Torp H, Haugen B, Said K, Shehata A, Ashour Z, El-Tobgy S, Cameli M, Bigio E, Lisi M, Righini F, Franchi F, Scolletta S, Mondillo S, Gayat E, Weinert L, Yodwut C, Mor-Avi V, Lang R, Hrynchyshyn N, Kachenoura N, Diebold B, Khedim R, Senesi M, Redheuil A, Mousseaux E, Perdrix L, Yurdakul S, Erdemir V, Tayyareci Y, Memic K, Yildirimturk O, Aytekin V, Gurel M, Aytekin S, Gargani L, Fernandez Cimadevilla C, La Falce S, Landi P, Picano E, Sicari R, Smedsrud MK, Gravning J, Eek C, Morkrid L, Skulstad H, Aaberge L, Bendz B, Kjekshus J, Edvardsen T, Bajraktari G, Hyseni V, Morina B, Batalli A, Tafarshiku R, Olloni R, Henein M, Mjolstad O, Snare S, Folkvord L, Helland F, Torp H, Haraldseth O, Grimsmo A, Haugen B, Berry M, Zaghden O, Nahum J, Macron L, Lairez O, Damy T, Bensaid A, Dubois Rande J, Gueret P, Lim P, Nciri N, Issaoui Z, Tlili C, Wanes I, Foudhil H, Dachraoui F, Grapsa J, Dawson D, Nihoyannopoulos P, Gianturco L, Turiel M, Atzeni F, Sarzi-Puttini P, Stella D, Donato L, Tomasoni L, Jung P, Mueller M, Huber T, Sevilmis G, Kroetz F, Sohn H, Panoulas V, Bratsas A, Dawson D, Nihoyannopoulos P, Raso R, Tartarisco G, Gargani L, La Falce S, Pioggia G, Picano E, Gargiulo P, Petretta M, Cuocolo A, Prastaro M, D'amore C, Vassallo E, Savarese G, Marciano C, Paolillo S, Perrone Filardi P, Aggeli C, Felekos I, Roussakis G, Poulidakis E, Pietri P, Toutouzas K, Stefanadis C, Kaladaridis A, Skaltsiotis I, Kottis G, Bramos D, Takos D, Matthaios I, Agrios I, Papadopoulou E, Moulopoulos S, Toumanidis S, Carrilho-Ferreira P, Cortez-Dias N, Jorge C, Silva D, Silva Marques J, Placido R, Santos L, Ribeiro S, Fiuza M, Pinto F, Stoickov V, Ilic S, Deljanin Ilic M, Kim W, Woo J, Bae J, Kim K, Descalzo M, Rodriguez J, Moral S, Otaegui I, Mahia P, Garcia Del Blanco L, Gonzalez Alujas T, Figueras J, Evangelista A, Garcia-Dorado D, Takeuchi M, Kaku K, Otani K, Iwataki M, Kuwaki H, Haruki N, Yoshitani H, Otsuji Y, Kukucka M, Pasic M, Unbehaun A, Dreysse S, Mladenow A, Kuppe H, Hetzer R, Rajamannan N, Yurdakul S, Tayyareci Y, Tanrikulu A, Yildirimturk O, Aytekin V, Aytekin S, Kristiansson L, Gustafsson S, Lindmark K, Henein MY, Evdoridis C, Stougiannos P, Thomopoulos M, Fosteris M, Spanos P, Sionis G, Giatsios D, Paschalis A, Sakellaris C, Trikas A, Yong ZY, Boerlage-Van Dijk K, Koch K, Vis M, Bouma B, Piek J, Baan J, Abid L, Frikha Z, Makni K, Maazoun N, Abid D, Hentati M, Kammoun S, Barbier P, Staron A, Cefalu' C, Berna G, Gripari P, Andreini D, Pontone G, Pepi M, Ring L, Rana B, Ho S, Wells F, Yurdakul S, Tayyareci Y, Yildirimturk O, Dogan A, Aytekin V, Aytekin S, Karaca O, Guler G, Guler E, Gunes H, Alizade E, Agus H, Gol G, Esen O, Esen A, Turkmen M, Agricola E, Ingallina G, Ancona M, Maggio S, Slavich M, Tufaro V, Oppizzi M, Margonato A, Orsborne C, Irwin B, Pearce K, Ray S, Garcia Alonso C, Vallejo N, Labata C, Lopez Ayerbe J, Teis A, Ferrer E, Nunez Aragon R, Gual F, Pedro Botet M, Bayes Genis A, Santos CM, Carvalho M, Andrade M, Dores H, Madeira S, Cardoso G, Ventosa A, Aguiar C, Ribeiras R, Mendes M, Petrovic M, Petrovic M, Milasinovic G, Vujisic-Tesic B, Nedeljkovic I, Zamaklar-Trifunovic D, Petrovic I, Draganic G, Banovic M, Boricic M, Villarraga H, Molini-Griggs Bs C, Silen-Rivera Bs P, Payne Mph Ms B, Koshino Md Phd Y, Hsiao Md J, Monivas Palomero V, Mingo Santos S, Mitroi C, Garcia Lunar I, Garcia Pavia P, Castro Urda V, Toquero J, Gonzalez Mirelis J, Cavero Gibanel M, Fernandez Lozano I, Oko-Sarnowska Z, Wachowiak-Baszynska H, Katarzynska-Szymanska A, Trojnarska O, Grajek S, Bellavia D, Pellikka P, Dispenzieri A, Oh JK, Polizzi V, Pitrolo F, Musumeci F, Miller F, Ancona R, Comenale Pinto S, Caso P, Severino S, Cavallaro C, Vecchione F, D'onofrio A, Calabro' R, Maceira Gonzalez AM, Ripoll C, Cosin-Sales J, Igual B, Salazar J, Belloch V, Cosin-Aguilar J, Pinamonti B, Iorio A, Bobbo M, Merlo M, Barbati G, Massa L, Faganello G, Di Lenarda A, Sinagra GF, Ishizu T, Seo Y, Enomoto M, Kameda Y, Ishibashi N, Inoue M, Aonuma K, Saleh A, Matsumori A, Negm H, Fouad H, Onsy A, Hamodraka E, Paraskevaidis I, Kallistratos M, Lezos V, Zamfir T, Manetos C, Mavropoulos D, Poulimenos L, Kremastinos D, Manolis A, Citro R, Rigo F, Ciampi Q, Patella M, Provenza G, Zito C, Tagliamonte E, Rotondi F, Silvestri F, Bossone E, Monivas Palomero V, Mingo Santos S, Beltran Correas P, Gutierrez Landaluce C, Mitroi C, Garcia Lunar I, Gonzalez Mirelis J, Cavero Gibanel M, Gomez Bueno M, Segovia Cubero J, Beladan C, Matei F, Popescu B, Calin A, Rosca M, Boanta A, Enache R, Savu O, Usurelu C, Ginghina C, Ciobanu AO, Dulgheru R, Magda S, Dragoi R, Florescu M, Vinereanu D, Silva Marques J, Robalo Martins S, Jorge C, Calisto C, Goncalves S, Ribeiro S, Barrigoto I, Carvalho De Sousa J, Almeida A, Nunes Diogo A, Sargento L, Satendra M, Sousa C, Lousada N, Palma Reis R, Schiano Lomoriello V, Esposito R, Santoro A, Raia R, Schiattarella P, Dores E, Galderisi M, Mansencal N, Caille V, Dupland A, Perrot S, Bouferrache K, Vieillard-Baron A, Jouffroy R, Moceri P, Liodakis E, Gatzoulis M, Li W, Dimopoulos K, Sadron M, Seguela PE, Arnaudis B, Dulac Y, Cognet T, Acar P, Shiina Y, Gatzoulis M, Uemura H, Li W, Kupczynska K, Kasprzak J, Michalski B, Lipiec P, Carvalho V, Almeida AMG, David C, Marques J, Silva D, Cortez-Dias N, Ferreira P, Amaro M, Costa P, Diogo A, Tritakis V, Ikonomidis I, Paraskevaidis I, Lekakis J, Tzortzis S, Kadoglou N, Papadakis I, Trivilou P, Koukoulis C, Anastasiou-Nana M, Bombardini T, Picano E, Gherardi S, Arpesella G, Maccherini M, Serra W, Magnani G, Del Bene R, Pasanisi E, Sicari R, Startari U, Panchetti L, Rossi A, Piacenti M, Morales M, Mansencal N, El Hajjaji I, El Mahmoud R, Digne F, Dubourg O, Gargani L, Agoston G, Moreo A, Pratali L, Moggi Pignone A, Pavellini A, Doveri M, Musca F, Varga A, Picano E, Pratali L, Faita F, Rimoldi S, Sartori C, Alleman Y, Salinas Salmon C, Villena M, Scherrer U, Picano E, Sicari R, Baptista R, Serra S, Castro G, Martins R, Salvador M, Monteiro P, Silva J, Szudi L, Temesvary A, Fekete B, Kassai I, Szekely L, Abdel Moneim SS, Martinez M, Mankad S, Bernier M, Dhoble A, Pellikka P, Chandrasekaran K, Oh J, Mulvagh S, Hong GR, Kim JY, Lee SC, Choi SH, Sohn IS, Seo HS, Choi JH, Cho KI, Yoon SJ, Lim SJ, Lipiec P, Wejner-Mik P, Kusmierek J, Plachcinska A, Szuminski R, Kasprzak J, Stoebe S, Tarr A, Trache T, Hagendorff A, Mor-Avi V, Yodwut C, Jenkins C, Kuhl H, Nesser H, Marwick T, Franke A, Niel J, Sugeng L, Lang R, Gustafsson S, Henein M, Soderberg S, Lindmark K, Lindqvist P, Necas J, Kovalova S, Saha SK, Kiotsekoglou A, Toole R, Govind S, Gopal A, Amzulescu MS, Florian A, Bogaert J, Janssens S, Voigt J, Parisi V, Losi M, Parrella L, Contaldi C, Chiacchio E, Caputi A, Scatteia A, Buonauro A, Betocchi S, Rimbas R, Dulgheru R, Mihaila S, Vinereanu D, Caputo M, Navarri R, Innelli P, Urselli R, Capati E, Ballo P, Furiozzi F, Favilli R, Mondillo S, Lindquist R, Miller A, Reece C, O'leary P, Cetta F, Eidem BW, Cikes M, Gasparovic H, Bijnens B, Velagic V, Kopjar T, Biocina B, Milicic D, Ta-Shma A, Nir A, Perles Z, Gavri S, Golender J, Rein A, Pinnacchio G, Barone L, Battipaglia I, Cosenza A, Marinaccio L, Coviello I, Scalone G, Sestito A, Lanza G, Crea F, Cakal S, Eroglu E, Ozkan B, Kulahcioglu S, Bulut M, Koyuncu A, Acar G, Alici G, Dundar C, Esen A, Labombarda F, Zangl E, Pellissier A, Bougle D, Maragnes P, Milliez P, Saloux E, Aggeli C, Lagoudakou S, Felekos I, Gialafos E, Poulidakis E, Tsokanis A, Roussakis G, Stefanadis C, Nagy A, Kovats T, Apor A, Vago H, Toth A, Sax B, Kovacs A, Merkely B, Elnoamany MF, Badran H, Abdelfattah I, Khalil T, Salama M, Butz T, Taubenberger C, Thangarajah F, Meissner A, Van Bracht M, Prull M, Yeni H, Plehn G, Trappe H, Rydman R, Bone D, Alam M, Caidahl K, Larsen F, Staron A, Gasior Z, Tabor Z, Sengupta P, Liu D, Niemann M, Hu K, Herrmann S, Stoerk S, Morbach C, Knop S, Voelker W, Ertl G, Weidemann F, Cawley P, Hamilton-Craig C, Mitsumori L, Maki J, Otto C, Astrom Aneq M, Nylander E, Ebbers T, Engvall J, Arvanitis P, Flachskampf F, Duvernoy O, De Torres Alba F, Valbuena Lopez S, Guzman Martinez G, Gomez De Diego J, Rey Blas J, Armada Romero E, Lopez De Sa E, Moreno Yanguela M, Lopez Sendon J, Aggeli C, Felekos I, Poulidakis E, Trikalinos N, Siasos G, Aggeli A, Roussakis G, Stefanadis C, Tomaszewski A, Kutarski A, Tomaszewski M, Ikonomidis I, Lekakis J, Tritakis V, Tzortzis S, Kadoglou N, Papadakis I, Trivilou P, Anastasiou-Nana M, Koukoulis C, Paraskevaidis I, Vriz O, Driussi C, Bettio M, Pavan D, Bossone E, Antonini Canterin F, Doltra Magarolas A, Fernandez-Armenta J, Silva E, Solanes N, Rigol M, Barcelo A, Mont L, Berruezo A, Brugada J, Sitges M, Ciciarello FL, Mandolesi S, Fedele F, Agati L, Marceca A, Rhee S, Shin S, Kim S, Yun K, Yoo N, Kim N, Oh S, Jeong J, Alabdulkarim N. Poster Session 4: Friday 9 December 2011, 14:00-18:00 * Location: Poster Area. European Journal of Echocardiography 2011. [DOI: 10.1093/ejechocard/jer216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Hartsuiker L, VAN Es P, Petersen W, VAN Leeuwen TG, Terstappen LWMM, Otto C. Quantitative detection of gold nanoparticles on individual, unstained cancer cells by scanning electron microscopy. J Microsc 2011; 244:187-93. [PMID: 21801179 DOI: 10.1111/j.1365-2818.2011.03528.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Gold nanoparticles are rapidly emerging for use in biomedical applications. Characterization of the interaction and delivery of nanoparticles to cells through microscopy is important. Scanning electron microscopes have the intrinsic resolution to visualize gold nanoparticles on cells. A novel sample preparation protocol was developed to enable imaging of cells and gold nanoparticles with a conventional below lens scanning electron microscopes. The negative influence of 'charging' on the quality of scanning electron microscopes' images could be limited by deposition of biological cells on a conductive (gold) surface. The novel protocol enabled high-resolution scanning electron microscopes' imaging of small clusters and individual gold nanoparticles on uncoated cell surfaces. Gold nanoparticles could be counted on cancer cells with automated routines.
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Affiliation(s)
- L Hartsuiker
- Medical Cell BioPhysics, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, the Netherlands
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Otto C, Oltmann A, Stein A, Frenzel K, Schroeter J, Habbel P, Gärtner B, Hofmann J, Ruprecht K. Intrathecal EBV antibodies are part of the polyspecific immune response in multiple sclerosis. Neurology 2011; 76:1316-21. [PMID: 21482946 DOI: 10.1212/wnl.0b013e318215286d] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE One mechanism underlying the link between multiple sclerosis (MS) and Epstein-Barr virus (EBV) might be a direct CNS infection. Viral CNS infections cause elevated antibody indices (AIs). Elevated EBV AIs were found in MS; however, patients with MS frequently show a polyspecific intrathecal immune response with elevated antiviral AIs. To discriminate whether elevated EBV AIs indicate a virus-driven or a polyspecific intrathecal immune response, we determined the intrathecal fraction of anti-EBV antibodies. METHODS The fraction of intrathecally synthesized EBV-specific immunoglobulin G (IgG) of the total intrathecally synthesized IgG (F(S) anti-EBV) was determined in 24 patients with a clinically isolated syndrome (CIS) or MS and 3 patients with cerebral posttransplantation lymphoproliferative disorder (PTLD), all of whom had elevated EBV AIs. F(S) anti-measles and AIs for measles, rubella, varicella zoster, and herpes simplex virus were measured as well. The prevalence of an elevated EBV AI was analyzed in another 36 patients with CIS. RESULTS Median F(S) anti-EBV in patients with CIS/MS was low (0.65%) and did not differ from F(S) anti-measles (0.9%). Median F(S) anti-EBV was about 40-fold higher in patients with cerebral PTLD than in patients with CIS/MS. All 24 patients with CIS/MS with an elevated EBV AI had at least one further elevated antiviral AI. Only 2 of 36 (5.6%) patients with CIS showed an intrathecal synthesis of anti-EBV antibodies. CONCLUSIONS Intrathecally produced anti-EBV antibodies are part of the polyspecific intrathecal immune response in CIS/MS and only rarely detectable in patients with CIS, both arguing against a direct CNS infection with EBV in patients with CIS/MS.
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Affiliation(s)
- C Otto
- Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany
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Timmermann W, Otto C, Gasser M, Meyer D, Parthum E, Schad J, Koch M, Gassel HJ, Ulrichs K, Thiede A. Long-term small bowel allograft function induced by short-term FK 506 application is associated with split tolerance. Transpl Int 2011. [DOI: 10.1111/j.1432-2277.2000.tb02098.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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van der Pol E, Hoekstra AG, Sturk A, Otto C, van Leeuwen TG, Nieuwland R. Optical and non-optical methods for detection and characterization of microparticles and exosomes. J Thromb Haemost 2010; 8:2596-607. [PMID: 20880256 DOI: 10.1111/j.1538-7836.2010.04074.x] [Citation(s) in RCA: 374] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Microparticles and exosomes are cell-derived microvesicles present in body fluids that play a role in coagulation, inflammation, cellular homeostasis and survival, intercellular communication, and transport. Despite increasing scientific and clinical interest, no standard procedures are available for the isolation, detection and characterization of microparticles and exosomes, because their size is below the reach of conventional detection methods. Our objective is to give an overview of currently available and potentially applicable methods for optical and non-optical determination of the size, concentration, morphology, biochemical composition and cellular origin of microparticles and exosomes. The working principle of all methods is briefly discussed, as well as their applications and limitations based on the underlying physical parameters of the technique. For most methods, the expected size distribution for a given microvesicle population is determined. The explanations of the physical background and the outcomes of our calculations provide insights into the capabilities of each method and make a comparison possible between the discussed methods. In conclusion, several (combinations of) methods can detect clinically relevant properties of microparticles and exosomes. These methods should be further explored and validated by comparing measurement results so that accurate, reliable and fast solutions come within reach.
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Affiliation(s)
- E van der Pol
- Laboratory of Experimental Clinical Chemistry Biomedical Engineering and Physics, Academic Medical Center, University of Amsterdam, Amsterdam.
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Otto C, Siewe J, Zarghooni K, Kaulhausen T, Sauerland S, Eysel P, Cornely OA. [Clinical research in orthopaedics--creation of a clinical trial unit in orthopaedics/trauma surgery]. Z Orthop Unfall 2010; 148:145-8. [PMID: 20135607 DOI: 10.1055/s-0029-1240660] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AIM The clinical trial is the link between research and medical practice and facilitates evidence-based therapies. There are specific difficulties to be faced when executing clinical trials related to surgical services (learning curve of the surgeon, blinding etc.). As a result, surgical randomised controlled clinical trials (RCT) are underrepresented in the total number of RCTs. METHOD To make it easier to implement surgical RCT, the Clinical Trial Unit for Orthopaedics and Trauma Surgery was established. Training of the supporting physicians was reached by rotations in the structures of CHIR-Net, a BMBF-funded network created to build up a region-wide surgical research infrastructure. RESULT/CONCLUSION Supported by the regional CHIR-Net Center and the regional Clinical Trial Center, a research institute was thus founded with the aim of contributing to a long-term improvement in clinical research in orthopaedics and trauma surgery.
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Affiliation(s)
- C Otto
- Klinik und Poliklinik für Orthopädie und Unfallchirurgie, Universität zu Köln, Köln
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Otto C, Hlavsa M. Keep on swimming! J Environ Health 2010; 72:25-27. [PMID: 20464908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Affiliation(s)
- Charles Otto
- National Center for Environmental Health, CDC, Atlanta, GA 30341, USA.
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Haufe S, Engeli S, Budziarek P, Utz W, Schulz-Menger J, Hermsdorf M, Wiesner S, Otto C, Fuhrmann JC, Luft FC, Boschmann M, Jordan J. Determinants of exercise-induced fat oxidation in obese women and men. Horm Metab Res 2010; 42:215-21. [PMID: 19937568 DOI: 10.1055/s-0029-1242745] [Citation(s) in RCA: 16] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Endurance training at an intensity eliciting maximal fat oxidation may have a beneficial effect on body weight and glucose metabolism in obese patients. However, the exercise intensity at which maximal fat oxidation occurs and the factors limiting fat oxidation are not well studied in this population. Obese, otherwise healthy men (n=38) and women (n=91) performed an incremental exercise test up to exhaustion on a cycle ergometer. Substrate oxidation was estimated using indirect calorimetry. Magnetic resonance tomography and spectroscopy were conducted to assess body fat distribution and intramyocellular fat content. We determined the exercise intensity at which maximal body fat oxidation occurs and assessed whether body composition, body fat distribution, intramyocellular fat content, or oxidative capacity predict exercise-induced fat oxidation. Maximal exercise-induced fat oxidation was 0.30+/-0.02 g/min in men and 0.23+/-0.01 g/min in women (p<0.05). Exercise intensity at the maximum fat oxidation was 42+/-2.2% VO (2 max) in men and 43+/-1.7% VO (2 max) in women. With multivariate analysis, exercise-induced fat oxidation was related to fat-free mass, percent fat mass, and oxidative capacity, but not to absolute fat mass, visceral fat, or intramyocellular fat content. We conclude that in obese subjects the capacity to oxidize fat during exercise appears to be limited by skeletal muscle mass and oxidative capacity rather than the availability of visceral or intramyocellular fat.
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Affiliation(s)
- S Haufe
- Franz Volhard Clinical Research Center at the Experimental and Clinical Research Center, Charité University Medical School and Max Delbrück Center for Molecular Medicine, Berlin, Germany
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Rylski B, Marcolino I, Otto C, Dashkevich A, Schlensak C, Uhl R, Beyersdorf F, Geissler HJ. Restoration of sinus rhythm vs. recovery of atrial contraction: results of intermediate follow-up after modified maze procedure with high intensity focused ultrasound (HIFU). Thorac Cardiovasc Surg 2010. [DOI: 10.1055/s-0029-1247089] [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: 10/19/2022]
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Seibert P, Whitener N, Coblentz M, Reynolds S, Schommer J, Otto C, Zimmerman C. P3.183 Implications of deep brain stimulation on sleep disturbances for individuals with movement disorders. Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70747-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Seibert P, Whitener N, Otto C, Coblentz M, Schommer J, Reynolds S, Zimmerman C. P2.054 Exploring the effects of caffeine on men and women with movement disorders. Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70405-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Murade CU, Subramaniam V, Otto C, Bennink ML. Interaction of oxazole yellow dyes with DNA studied with hybrid optical tweezers and fluorescence microscopy. Biophys J 2009; 97:835-43. [PMID: 19651041 DOI: 10.1016/j.bpj.2009.05.024] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2008] [Revised: 04/18/2009] [Accepted: 05/07/2009] [Indexed: 10/20/2022] Open
Abstract
We have integrated single molecule fluorescence microscopy imaging into an optical tweezers set-up and studied the force extension behavior of individual DNA molecules in the presence of various YOYO-1 and YO-PRO-1 concentrations. The fluorescence modality was used to record fluorescent images during the stretching and relaxation cycle. Force extension curves recorded in the presence of either dye did not show the overstretching transition that is characteristic for bare DNA. Using the modified wormlike chain model to curve-fit the force extension data revealed a contour length increase of 6% and 30%, respectively, in the presence of YO-PRO-1 and YOYO-1 at 100 nM. The fluorescence images recorded simultaneously showed that the number of bound dye molecules increased as the DNA molecule was stretched and decreased again as the force on the complex was lowered. The binding constants and binding site sizes for YO-PRO-1 and YOYO-1 were determined as a function of the force. The rate of YO-PRO-1 binding and unbinding was found to be 2 orders of magnitude larger than that for YOYO-1. A kinetic model is proposed to explain this observation.
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Affiliation(s)
- C U Murade
- Department of Biophysical Engineering and MESA+ Institute for Nanotechnology, Faculty of Science and Technology, University of Twente, 7500 AE Enschede, The Netherlands
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