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Klus C, Krumm K, Jacobi S, Willemer MC, Daub C, Stoevesandt D, Metzler K, Richter C, Peter LM, Heide S, Schmidt U. External post-mortem examination in virtual reality-scalability of a monocentric application. Int J Legal Med 2024:10.1007/s00414-024-03229-9. [PMID: 38592482 DOI: 10.1007/s00414-024-03229-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 04/01/2024] [Indexed: 04/10/2024]
Abstract
Conducting external post-mortem examinations is an essential skill required of physicians in various countries, regardless of their specialization. However, the quality of these examinations has been a subject of continuous debates, and notable errors were reviled. In response to these shortcomings, a virtual reality (VR) application was developed at Halle's medical department in Germany, focusing on the scene of discovery and the completion of death certificates. The initial trial of this VR application in 2020 involved 39 students and 15 early-career professionals. Based on the feedback, the application underwent improvements and was subsequently introduced to the medical department in Dresden, Germany, in 2022. Its primary objective was to showcase the VR training's adaptability and scalability across various educational structures and levels of medical expertise. Out of 73 students who participated, 63 completed the evaluation process. 93.1% (n = 58) of the evaluators reported increased confidence in conducting external post-mortem examinations, and 96.8% (n = 61) felt more assured in filling out death certificates, crediting this progress to the VR training. Additionally, 98.4% (n = 62) believed that repeating forensic medical aspects in their coursework was crucial, and 96.8% (n = 61) viewed the VR examination as a valuable addition to their academic program. Despite these positive responses, 91.6% (n = 55) of participants maintained that training with real corpses remains irreplaceable due to the insufficiency of haptic feedback in VR. Nevertheless, the potential for enhancing the VR content and expanding the training to additional locations or related disciplines warrants further exploration.
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Affiliation(s)
- Christina Klus
- Faculty of Medicine, Martin-Luther-University Halle-Wittenberg, Dorothea-Erxleben-Lernzentrum-Halle (DELH), Magdeburger Straße 12 (Saale), 06112, Halle, Germany.
| | - Katja Krumm
- Carl Gustav Carus Faculty of Medicine, TUD Dresden University of Technology, Institute of Medical Education, Medical Interprofessional Training Centre (MITZ), Dresden, Germany
| | - Sindy Jacobi
- Carl Gustav Carus Faculty of Medicine, TUD Dresden University of Technology, Institute of Forensic Medicine, Dresden, Germany
| | - Marie-Christin Willemer
- Carl Gustav Carus Faculty of Medicine, TUD Dresden University of Technology, Institute of Medical Education, Medical Interprofessional Training Centre (MITZ), Dresden, Germany
| | - Charlotte Daub
- Carl Gustav Carus Faculty of Medicine, TUD Dresden University of Technology, Institute of Forensic Medicine, Dresden, Germany
| | - Dietrich Stoevesandt
- Faculty of Medicine, Martin-Luther-University Halle-Wittenberg, Dorothea-Erxleben-Lernzentrum-Halle (DELH), Magdeburger Straße 12 (Saale), 06112, Halle, Germany
| | - Katrin Metzler
- Carl Gustav Carus Faculty of Medicine, TUD Dresden University of Technology, Institute of Forensic Medicine, Dresden, Germany
| | - Carolin Richter
- Institute for Forensic Medicine, Martin Luther University of Halle-Wittenberg, Franzosenweg 1 (Saale), 06112, Halle, Germany
| | - Lisa-Maria Peter
- Institute for Forensic Medicine, Martin Luther University of Halle-Wittenberg, Franzosenweg 1 (Saale), 06112, Halle, Germany
| | - Steffen Heide
- Carl Gustav Carus Faculty of Medicine, TUD Dresden University of Technology, Institute of Forensic Medicine, Dresden, Germany
| | - Uwe Schmidt
- Carl Gustav Carus Faculty of Medicine, TUD Dresden University of Technology, Institute of Forensic Medicine, Dresden, Germany
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Hussaini S, Mamyraiym Kyzy A, Schröder-Schetelig J, Lädke SL, Venkatesan V, Diaz-Maue L, Quiñonez Uribe RA, Richter C, Biktashev VN, Majumder R, Krinski V, Luther S. Efficient termination of cardiac arrhythmias using optogenetic resonant feedback pacing. Chaos 2024; 34:031103. [PMID: 38526981 DOI: 10.1063/5.0191519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 01/03/2024] [Indexed: 03/27/2024]
Abstract
Malignant cardiac tachyarrhythmias are associated with complex spatiotemporal excitation of the heart. The termination of these life-threatening arrhythmias requires high-energy electrical shocks that have significant side effects, including tissue damage, excruciating pain, and worsening prognosis. This significant medical need has motivated the search for alternative approaches that mitigate the side effects, based on a comprehensive understanding of the nonlinear dynamics of the heart. Cardiac optogenetics enables the manipulation of cellular function using light, enhancing our understanding of nonlinear cardiac function and control. Here, we investigate the efficacy of optically resonant feedback pacing (ORFP) to terminate ventricular tachyarrhythmias using numerical simulations and experiments in transgenic Langendorff-perfused mouse hearts. We show that ORFP outperforms the termination efficacy of the optical single-pulse (OSP) approach. When using ORFP, the total energy required for arrhythmia termination, i.e., the energy summed over all pulses in the sequence, is 1 mJ. With a success rate of 50%, the energy per pulse is 40 times lower than with OSP with a pulse duration of 10 ms. We demonstrate that even at light intensities below the excitation threshold, ORFP enables the termination of arrhythmias by spatiotemporal modulation of excitability inducing spiral wave drift.
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Affiliation(s)
- S Hussaini
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organisation, Göttingen 37077, Germany
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen 37075, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Lower Saxony, Göttingen 37075, Germany
| | - A Mamyraiym Kyzy
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organisation, Göttingen 37077, Germany
| | - J Schröder-Schetelig
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organisation, Göttingen 37077, Germany
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen 37075, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Lower Saxony, Göttingen 37075, Germany
| | - S L Lädke
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organisation, Göttingen 37077, Germany
| | - V Venkatesan
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organisation, Göttingen 37077, Germany
| | - L Diaz-Maue
- DZHK (German Center for Cardiovascular Research), Partner Site Lower Saxony, Göttingen 37075, Germany
- Research Electronics, Max Planck Institute for Dynamics and Self-Organisation, Göttingen 37077, Germany
| | - R A Quiñonez Uribe
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organisation, Göttingen 37077, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Lower Saxony, Göttingen 37075, Germany
| | - C Richter
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organisation, Göttingen 37077, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Lower Saxony, Göttingen 37075, Germany
- WG Cardiovascular Optogenetics, Lab Animal Science Unit, Leibniz Institute for Primate Research, Göttingen 37077, Germany
| | - V N Biktashev
- Department of Mathematics and Statistics, University of Exeter, Exeter EX4 4QF, United Kingdom
| | - R Majumder
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organisation, Göttingen 37077, Germany
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen 37075, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Lower Saxony, Göttingen 37075, Germany
| | - V Krinski
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organisation, Göttingen 37077, Germany
| | - S Luther
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organisation, Göttingen 37077, Germany
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen 37075, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Lower Saxony, Göttingen 37075, Germany
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3
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Dupuy R, Filser J, Richter C, Buttersack T, Trinter F, Gholami S, Seidel R, Nicolas C, Bozek J, Egger D, Oberhofer H, Thürmer S, Hergenhahn U, Reuter K, Winter B, Bluhm H. Ångstrom-Depth Resolution with Chemical Specificity at the Liquid-Vapor Interface. Phys Rev Lett 2023; 130:156901. [PMID: 37115858 DOI: 10.1103/physrevlett.130.156901] [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] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 02/22/2023] [Indexed: 06/19/2023]
Abstract
The determination of depth profiles across interfaces is of primary importance in many scientific and technological areas. Photoemission spectroscopy is in principle well suited for this purpose, yet a quantitative implementation for investigations of liquid-vapor interfaces is hindered by the lack of understanding of electron-scattering processes in liquids. Previous studies have shown, however, that core-level photoelectron angular distributions (PADs) are altered by depth-dependent elastic electron scattering and can, thus, reveal information on the depth distribution of species across the interface. Here, we explore this concept further and show that the experimental anisotropy parameter characterizing the PAD scales linearly with the average distance of atoms along the surface normal obtained by molecular dynamics simulations. This behavior can be accounted for in the low-collision-number regime. We also show that results for different atomic species can be compared on the same length scale. We demonstrate that atoms separated by about 1 Å along the surface normal can be clearly distinguished with this method, achieving excellent depth resolution.
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Affiliation(s)
- R Dupuy
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, LCPMR, F-75005 Paris Cedex 05, France
| | - J Filser
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - C Richter
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - T Buttersack
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - F Trinter
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Strasse 1, 60438 Frankfurt am Main, Germany
| | - S Gholami
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - R Seidel
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - C Nicolas
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin-BP 48 91192, Gif-sur-Yvette Cedex, France
| | - J Bozek
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin-BP 48 91192, Gif-sur-Yvette Cedex, France
| | - D Egger
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - H Oberhofer
- Department of Physics, University of Bayreuth, 95440 Bayreuth, Germany
| | - S Thürmer
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-Ku, Kyoto 606-8502, Japan
| | - U Hergenhahn
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - K Reuter
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - B Winter
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - H Bluhm
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
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Richter C, Behringer V, Manig F, Henle T, Hohmann G, Zierau O. Traces of dietary patterns in saliva of hominids: Profiling salivary amino acid fingerprints in great apes and humans. J Hum Evol 2023; 175:103305. [PMID: 36586354 DOI: 10.1016/j.jhevol.2022.103305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 11/22/2022] [Accepted: 11/22/2022] [Indexed: 12/31/2022]
Abstract
Herbivorous animals that regularly consume tannin-rich food are known to secrete certain tannin-binding salivary proteins (TBSPs), especially proline-rich proteins and histidine-rich proteins, as an effective measure to counteract the antinutritive effects of dietary tannins. Due to their high binding capacity, TBSPs complex with tannins in the oral cavity, and thereby protect dietary proteins and digestive enzymes. Although the natural diet of great apes (Hominidae) is biased toward ripe fruits, analyses of food plants revealed that their natural diet contains considerable amounts of tannins, which is raising the question of possible counter-measures to cope with dietary tannins. In our study, we investigated the salivary amino acid profiles of zoo-housed Pan paniscus, Pan troglodytes, Gorilla gorilla, and Pongo abelii, and compared their results with corresponding data from Homo sapiens. Individual saliva samples of 42 apes and 17 humans were collected and quantitated by amino acid analysis, using cation-exchange chromatography with postcolumn derivatization, following acid hydrolysis. We found species-specific differences in the salivary amino acid profiles with average total salivary protein concentration ranging from 308.8 mg/dL in Po. abelii to 1165.6 mg/dL in G. gorilla. Total salivary protein was consistently higher in ape than in human saliva samples (174 mg/dL). All apes had on average also higher relative proline levels than humans did. Histidine levels had the highest concentration in the samples from Po. abelii followed by P. paniscus. In all ape species, the high salivary concentrations of proline and histidine are considered to be indicative of high concentrations of TBSPs in hominids. Given that the species differences in salivary composition obtained in this study correspond with overall patterns of secondary compound content in the diet of wild populations, we assume that salivary composition is resilient to acute and long-lasting changes in diet composition in general and tannin content in particular.
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Affiliation(s)
- Carolin Richter
- Institute of Zoology, Technische Universität Dresden, Zellescher Weg 20b, 01062 Dresden, Germany.
| | - Verena Behringer
- Institute of Zoology, Technische Universität Dresden, Zellescher Weg 20b, 01062 Dresden, Germany; Endocrinology Laboratory, German Primate Center, Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen, Germany; Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany
| | - Friederike Manig
- Institute of Food Chemistry, Technische Universität Dresden, Bergstrasse 66, 01062 Dresden, Germany
| | - Thomas Henle
- Institute of Food Chemistry, Technische Universität Dresden, Bergstrasse 66, 01062 Dresden, Germany
| | - Gottfried Hohmann
- Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany
| | - Oliver Zierau
- Institute of Zoology, Technische Universität Dresden, Zellescher Weg 20b, 01062 Dresden, Germany
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David S, Bačić B, Richter C, Mundt M. Editorial: Artificial intelligence to enhance biomechanical modelling. Front Sports Act Living 2023; 5:1188035. [PMID: 37188071 PMCID: PMC10175801 DOI: 10.3389/fspor.2023.1188035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 03/27/2023] [Indexed: 05/17/2023] Open
Affiliation(s)
- S. David
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Correspondence: S. David
| | - B. Bačić
- School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland, New Zealand
| | - C. Richter
- SportsMedicine Department, Sports Surgery Clinic, Dublin, Ireland
| | - M. Mundt
- Tech & Policy Lab, University of Western Australia, Perth, WA, Australia
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Breuninger K, Golla A, Richter C, Kimmel A, Mau W, Saal S. Pflegefachliche Begutachtungsunsicherheiten beim
Rehabilitationszugang über die Pflegebegutachtung – Ergebnisse
einer Mixed-Methods-Studie. Das Gesundheitswesen 2022. [DOI: 10.1055/s-0042-1753585] [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: 12/12/2022]
Affiliation(s)
| | - A Golla
- Medizinische Fakultät der Martin-Luther-Universität
Halle-Wittenberg, Institut für Rehabilitationsmedizin, Profilzentrum
Gesundheitswissenschaften, Halle (Saale), Deutschland
| | - C Richter
- Medizinische Fakultät der Martin-Luther-Universität
Halle-Wittenberg, Institut für Gesundheits- und Pflegewissenschaft,
Profilzentrum Gesundheitswissenschaften, Halle (Saale),
Deutschland
| | - A Kimmel
- Medizinischer Dienst Bund, Essen, Deutschland
| | - W Mau
- Medizinische Fakultät der Martin-Luther-Universität
Halle-Wittenberg, Institut für Rehabilitationsmedizin, Profilzentrum
Gesundheitswissenschaften, Halle (Saale), Deutschland
| | - S Saal
- Medizinische Fakultät der Martin-Luther-Universität
Halle-Wittenberg, Institut für Gesundheits- und Pflegewissenschaft,
Profilzentrum Gesundheitswissenschaften, Halle (Saale),
Deutschland
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Schneider S, Richter C, Beisel L. Überdosierungen von Heroin – Sozial- und
präventivmedizinische Ansatzpunkte zur Verhinderung dieser
Haupttodesursache nach illegalem Drogenkonsum. Das Gesundheitswesen 2022. [DOI: 10.1055/s-0042-1753787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Pietsch J, Piplack N, Berthold J, Khamfongkhruea C, Thiele J, Hölscher T, Traneus E, Janssens E, Smeets J, Stützer K, Löck S, Richter C. OC-0620 Prompt-gamma imaging for prostate cancer proton therapy: CNN-based detection of anatomical changes. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02642-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Carolan D, Richter C, Thorborg K, Franklyn-Miller A, O'Donovan J, Mc Donald C, King E. Hip and Groin Pain Prevalence and Prediction in Elite Gaelic Games: 2703 Male Athletes Across Two Seasons. Scand J Med Sci Sports 2022; 32:924-932. [PMID: 35108419 DOI: 10.1111/sms.14136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 01/19/2022] [Accepted: 01/30/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Hip and groin pain is highly prevalent in sub-elite Gaelic Athletic Association (GAA) athletes, but its prevalence at the elite level is unknown. The aims of this study were to report hip and groin pain prevalence in elite male athletes, to report changes in Copenhagen Hip and Groin Outcome Score (HAGOS) across two seasons and to assess if previous hip and groin pain or pre-season HAGOS could predict future hip and groin pain. METHODS During the 2017 and 2018 pre-season male Gaelic Players Association (GPA) playing members were invited to complete two questionnaires. The first questionnaire collected demographic information including age, GAA code played (Gaelic football or Hurling) and prevalence of hip and groin pain in the previous season. The second questionnaire was the HAGOS. Step-wise logistic regression models were fitted to HAGOS subscales, to examine if pre-season HAGOS subscale scores could predict future hip and groin pain. RESULTS The prevalence of hip and groin pain across the elite GAA cohort was 38%. Hip and groin pain in the previous season was the strongest predictor of future hip and groin pain (r2 =0.19, AUC=0.73, 95% CI 1.76-2.27) whereas pre-season HAGOS subscale scores had limited and no additional predictive ability (AUC 0.05-0.18). CONCLUSIONS Hip and groin pain prevalence is high in elite male GAA, with one in three athletes reporting pain. Previous season hip and groin pain is the strongest predictor of future hip and groin pain, while pre-season HAGOS scores have limited ability to predict future hip and groin pain.
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Affiliation(s)
- D Carolan
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Ireland
| | - C Richter
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Ireland
| | - K Thorborg
- Department of Orthopedic Surgery, Copenhagen University Hospital, Amager-Hvidovre, Sports Orthopedic Research Center - Copenhagen (SORC-C), Hvidovre, Denmark.,Department of Orthopedic Surgery and Physical Therapy, Physical Medicine & Amp; Rehabilitation Research - Copenhagen (PMR-C), Copenhagen University Hospital, Hvidovre, Denmark
| | - A Franklyn-Miller
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Ireland.,Centre for Health, Exercise and Sports Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - J O'Donovan
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Ireland.,Gaelic Players Association Safety and Welfare Committee, Dublin, Ireland
| | - C Mc Donald
- Gaelic Players Association Safety and Welfare Committee, Dublin, Ireland
| | - E King
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, Ireland.,Department of Life Sciences, University of Roehampton, Roehampton, UK
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Golla A, Richter C, Mau W, Saal S. Versichertenseitige Einflussfaktoren auf den Rehabilitationszugang über die Pflegebegutachtung. Das Gesundheitswesen 2021. [DOI: 10.1055/s-0041-1732116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- A Golla
- Institut für Rehabilitionsmedizin, Profilzentrum Gesundheitswissenschaften, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg
| | - C Richter
- Institut für Gesundheits- und Pflegewissenschaft, Profilzentrum Gesundheitswissenschaften, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg
| | - W Mau
- Institut für Rehabilitionsmedizin, Profilzentrum Gesundheitswissenschaften, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg
| | - S Saal
- Institut für Gesundheits- und Pflegewissenschaft, Profilzentrum Gesundheitswissenschaften, Medizinische Fakultät, Martin-Luther-Universität Halle-Wittenberg
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12
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Pietsch J, Khamfongkhruea C, Berthold J, Janssens G, Stützer K, Löck S, Richter C. OC-0204 Prompt-gamma-based verification in proton therapy: CNN-based classification of treatment deviations. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06819-5] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Zhang Y, Trnkova P, Heijmen B, Richter C, Aznar M, Albertini F, Bolsi A, Daartz J, Bertholet J, Knopf A. OC-0200 Patterns Of Practice in Adaptive and Real-Time Particle Therapy, Part I: intrafractional motion. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06815-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Berg H, Wirtz Martin MA, Niesteruk A, Richter C, Sreeramulu S, Schwalbe H. NMR-based Fragment Screening in a Minimum Sample but Maximum Automation Mode. J Vis Exp 2021. [PMID: 34152328 DOI: 10.3791/62262] [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: 10/31/2022] Open
Abstract
Fragment-based screening (FBS) is a well-validated and accepted concept within the drug discovery process both in academia and industry. The greatest advantage of NMR-based fragment screening is its ability not only to detect binders over 7-8 orders of magnitude of affinity but also to monitor purity and chemical quality of the fragments and thus to produce high quality hits and minimal false positives or false negatives. A prerequisite within the FBS is to perform initial and periodic quality control of the fragment library, determining solubility and chemical integrity of the fragments in relevant buffers, and establishing multiple libraries to cover diverse scaffolds to accommodate various macromolecule target classes (proteins/RNA/DNA). Further, an extensive NMR-based screening protocol optimization with respect to sample quantities, speed of acquisition and analysis at the level of biological construct/fragment-space, in condition-space (buffer, additives, ions, pH, and temperature) and in ligand-space (ligand analogues, ligand concentration) is required. At least in academia, these screening efforts have so far been undertaken manually in a very limited fashion, leading to limited availability of screening infrastructure not only in the drug development process but also in the context of chemical probe development. In order to meet the requirements economically, advanced workflows are presented. They take advantage of the latest state-of-the-art advanced hardware, with which the liquid sample collection can be filled in a temperature-controlled fashion into the NMR-tubes in an automated manner. 1H/19F NMR ligand-based spectra are then collected at a given temperature. High-throughput sample changer (HT sample changer) can handle more than 500 samples in temperature-controlled blocks. This together with advanced software tools speeds up data acquisition and analysis. Further, application of screening routines on protein and RNA samples are described to make aware of the established protocols for a broad user base in biomacromolecular research.
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Affiliation(s)
- Hannes Berg
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt
| | - M A Wirtz Martin
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt
| | - A Niesteruk
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt; German Cancer Consortium (DKTK) and DKFZ
| | - C Richter
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt
| | - S Sreeramulu
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt
| | - H Schwalbe
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt; German Cancer Consortium (DKTK) and DKFZ;
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15
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Ozga C, Honisch C, Schmidt P, Holzapfel X, Zindel C, Küstner-Wetekam C, Richter C, Hergenhahn U, Ehresmann A, Knie A, Hans A. Photon-electron coincidence experiments at synchrotron radiation facilities with arbitrary bunch modes. Rev Sci Instrum 2021; 92:045110. [PMID: 34243486 DOI: 10.1063/5.0040179] [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] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/05/2021] [Indexed: 06/13/2023]
Abstract
We report the adaptation of an electron-photon coincidence detection scheme to the multibunch hybrid mode of the synchrotron radiation source BESSY II (Helmholtz-Zentrum Berlin). Single-event-based data acquisition and evaluation, combined with the use of relative detection times between the coincident particles, enable the acquisition of proper coincidence signals from a quasi-continuous excitation pattern. The background signal produced by accidental coincidences in the time difference representation is modeled using the non-coincident electron and photon spectra. We validate the method by reproducing previously published results, which were obtained in the single bunch mode, and illustrate its usability for the multibunch hybrid mode by investigating the photoionization of CO2 into CO2 + B satellite states, followed by subsequent photon emission. The radiative lifetime obtained and the electron binding energy are in good agreement with earlier publications. We expect this method to be a useful tool to extend the versatility of coincident particle detection to arbitrary operation modes of synchrotron radiation facilities and other excitation sources without the need for additional experimental adjustments.
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Affiliation(s)
- C Ozga
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - C Honisch
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - Ph Schmidt
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - X Holzapfel
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - C Zindel
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - C Küstner-Wetekam
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - C Richter
- Leibniz-Institut für Oberflächenmodifizierung (IOM), Permoserstraße 15, 04318 Leipzig, Germany
| | - U Hergenhahn
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - A Ehresmann
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - A Knie
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - A Hans
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
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16
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Kubatova N, Qureshi NS, Altincekic N, Abele R, Bains JK, Ceylan B, Ferner J, Fuks C, Hargittay B, Hutchison MT, de Jesus V, Kutz F, Wirtz Martin MA, Meiser N, Linhard V, Pyper DJ, Trucks S, Fürtig B, Hengesbach M, Löhr F, Richter C, Saxena K, Schlundt A, Schwalbe H, Sreeramulu S, Wacker A, Weigand JE, Wirmer-Bartoschek J, Wöhnert J. 1H, 13C, and 15N backbone chemical shift assignments of coronavirus-2 non-structural protein Nsp10. Biomol NMR Assign 2021; 15:65-71. [PMID: 33159807 PMCID: PMC7648550 DOI: 10.1007/s12104-020-09984-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 11/03/2020] [Indexed: 06/11/2023]
Abstract
The international Covid19-NMR consortium aims at the comprehensive spectroscopic characterization of SARS-CoV-2 RNA elements and proteins and will provide NMR chemical shift assignments of the molecular components of this virus. The SARS-CoV-2 genome encodes approximately 30 different proteins. Four of these proteins are involved in forming the viral envelope or in the packaging of the RNA genome and are therefore called structural proteins. The other proteins fulfill a variety of functions during the viral life cycle and comprise the so-called non-structural proteins (nsps). Here, we report the near-complete NMR resonance assignment for the backbone chemical shifts of the non-structural protein 10 (nsp10). Nsp10 is part of the viral replication-transcription complex (RTC). It aids in synthesizing and modifying the genomic and subgenomic RNAs. Via its interaction with nsp14, it ensures transcriptional fidelity of the RNA-dependent RNA polymerase, and through its stimulation of the methyltransferase activity of nsp16, it aids in synthesizing the RNA cap structures which protect the viral RNAs from being recognized by the innate immune system. Both of these functions can be potentially targeted by drugs. Our data will aid in performing additional NMR-based characterizations, and provide a basis for the identification of possible small molecule ligands interfering with nsp10 exerting its essential role in viral replication.
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Affiliation(s)
- N Kubatova
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - N S Qureshi
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - N Altincekic
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - R Abele
- Institute for Biochemistry, Biocentre, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - J K Bains
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - B Ceylan
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - J Ferner
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - C Fuks
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - B Hargittay
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - M T Hutchison
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - V de Jesus
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - F Kutz
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - M A Wirtz Martin
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - N Meiser
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - V Linhard
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - D J Pyper
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - S Trucks
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - B Fürtig
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - M Hengesbach
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany.
| | - F Löhr
- Institute of Biophysical Chemistry, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - C Richter
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - K Saxena
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - A Schlundt
- Institute for Molecular Biosciences, Johann Wolfgang Goethe-University, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - H Schwalbe
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany.
| | - S Sreeramulu
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - A Wacker
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - J E Weigand
- Department of Biology, Technical University of Darmstadt, Schnittspahnstr 10, 64287, Darmstadt, Germany
| | - J Wirmer-Bartoschek
- Institute for Organic Chemistry and Chemical Biology, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
| | - J Wöhnert
- Institute for Molecular Biosciences, Johann Wolfgang Goethe-University, Max-von-Laue-Str. 7, 60438, Frankfurt/M, Germany
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17
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Gore S, Franklyn-Miller A, Richter C, King E, Falvey EC, Moran K. Corrigendum to "The effects of rehabilitation on the biomechanics of patients with athletic groin pain" [J. Biomech. 99 (2020) 109474]. J Biomech 2020; 115:110128. [PMID: 33303213 DOI: 10.1016/j.jbiomech.2020.110128] [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: 11/28/2022]
Affiliation(s)
- S Gore
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland; School of Health and Human Performance, Dublin City University, Dublin, Ireland; INSIGHT Centre for Data Analytics, Dublin City University, Dublin, Ireland.
| | - A Franklyn-Miller
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland; Centre for Health, Exercise and Sports Medicine, University of Melbourne, Australia
| | - C Richter
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland
| | - E King
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland; Department of Life Sciences, Roehampton University, UK
| | - E C Falvey
- Sports Medicine Research Department, Sports Surgery Clinic, Santry Demesne, Dublin, Ireland; Department of Medicine, University College Cork, Ireland
| | - K Moran
- School of Health and Human Performance, Dublin City University, Dublin, Ireland; INSIGHT Centre for Data Analytics, Dublin City University, Dublin, Ireland
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18
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Berthold J, Jost A, Khamfongkhruea C, Petzoldt J, Thiele J, Hölscher T, Wohlfahrt P, Pausch G, Janssens G, Smeets J, Richter C. OC-0443: First systematic clinical study on detection of anatomical changes in PT using prompt-gamma imaging. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00465-5] [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] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Berthold J, Khamfongkhruea C, Jost A, Petzoldt J, Thiele J, Hölscher T, Wohlfahrt P, Hofmann C, Pausch G, Janssens G, Julien S, Richter C. OC-0698: First-in-man validation of CT-based stopping-power prediction using prompt-gamma range verification. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00720-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Peters N, Wohlfahrt P, Hofmann C, Möhler C, Makocki S, Richter C. OC-0697: Particle therapy: Assessing clinical benefit of direct stopping-power prediction from dual-energy CT. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00719-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Cantini F, Banci L, Altincekic N, Bains JK, Dhamotharan K, Fuks C, Fürtig B, Gande SL, Hargittay B, Hengesbach M, Hutchison MT, Korn SM, Kubatova N, Kutz F, Linhard V, Löhr F, Meiser N, Pyper DJ, Qureshi NS, Richter C, Saxena K, Schlundt A, Schwalbe H, Sreeramulu S, Tants JN, Wacker A, Weigand JE, Wöhnert J, Tsika AC, Fourkiotis NK, Spyroulias GA. 1H, 13C, and 15N backbone chemical shift assignments of the apo and the ADP-ribose bound forms of the macrodomain of SARS-CoV-2 non-structural protein 3b. Biomol NMR Assign 2020; 14:339-346. [PMID: 32803496 PMCID: PMC7428200 DOI: 10.1007/s12104-020-09973-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 07/31/2020] [Indexed: 06/02/2023]
Abstract
The SARS-CoV-2 genome encodes for approximately 30 proteins. Within the international project COVID19-NMR, we distribute the spectroscopic analysis of the viral proteins and RNA. Here, we report NMR chemical shift assignments for the protein Nsp3b, a domain of Nsp3. The 217-kDa large Nsp3 protein contains multiple structurally independent, yet functionally related domains including the viral papain-like protease and Nsp3b, a macrodomain (MD). In general, the MDs of SARS-CoV and MERS-CoV were suggested to play a key role in viral replication by modulating the immune response of the host. The MDs are structurally conserved. They most likely remove ADP-ribose, a common posttranslational modification, from protein side chains. This de-ADP ribosylating function has potentially evolved to protect the virus from the anti-viral ADP-ribosylation catalyzed by poly-ADP-ribose polymerases (PARPs), which in turn are triggered by pathogen-associated sensing of the host immune system. This renders the SARS-CoV-2 Nsp3b a highly relevant drug target in the viral replication process. We here report the near-complete NMR backbone resonance assignment (1H, 13C, 15N) of the putative Nsp3b MD in its apo form and in complex with ADP-ribose. Furthermore, we derive the secondary structure of Nsp3b in solution. In addition, 15N-relaxation data suggest an ordered, rigid core of the MD structure. These data will provide a basis for NMR investigations targeted at obtaining small-molecule inhibitors interfering with the catalytic activity of Nsp3b.
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Affiliation(s)
- F Cantini
- Magnetic Resonance Center - CERM, University of Florence, Via Luigi Sacconi 6, Sesto Fiorentino, 50019, Florence, Italy
- Department of Chemistry, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019, Florence, Italy
| | - L Banci
- Magnetic Resonance Center - CERM, University of Florence, Via Luigi Sacconi 6, Sesto Fiorentino, 50019, Florence, Italy.
- Department of Chemistry, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019, Florence, Italy.
| | - N Altincekic
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - J K Bains
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - K Dhamotharan
- Institute for Molecular Biosciences, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - C Fuks
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - B Fürtig
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | | | - B Hargittay
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - M Hengesbach
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - M T Hutchison
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - S M Korn
- Institute for Molecular Biosciences, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - N Kubatova
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - F Kutz
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - V Linhard
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - F Löhr
- Institute of Biophysical Chemistry, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - N Meiser
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - D J Pyper
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - N S Qureshi
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - C Richter
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - K Saxena
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - A Schlundt
- Institute for Molecular Biosciences, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - H Schwalbe
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany.
| | - S Sreeramulu
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - J-N Tants
- Institute for Molecular Biosciences, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - A Wacker
- Institute for Organic Chemistry and Chemical Biology, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - J E Weigand
- Department of Biology, Technical University of Darmstadt, Schnittspahnstr. 10, 64287, Darmstadt, Germany
| | - J Wöhnert
- Institute for Molecular Biosciences, Center for Biomolecular Magnetic Resonance (BMRZ), Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue-Str. 7, 60438, Frankfurt, Germany
| | - A C Tsika
- Department of Pharmacy, University of Patras, 26504, Patras, Greece
| | - N K Fourkiotis
- Department of Pharmacy, University of Patras, 26504, Patras, Greece
| | - G A Spyroulias
- Department of Pharmacy, University of Patras, 26504, Patras, Greece.
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22
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Krohn OA, Quick M, Sudarkova SM, Ioffe IN, Richter C, Kovalenko SA. Photoisomerization dynamics of trans–trans, cis–trans, and cis–cis diphenylbutadiene from broadband transient absorption spectroscopy and calculations. J Chem Phys 2020; 152:224305. [DOI: 10.1063/5.0007241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- O. A. Krohn
- JILA and the Department of Physics, University of Colorado, Boulder, Colorado 80309, USA
| | - M. Quick
- Department of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany
| | - S. M. Sudarkova
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - I. N. Ioffe
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - C. Richter
- Department of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany
| | - S. A. Kovalenko
- Department of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany
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23
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Richter C, Hoyer S, Lessig R, Stoevesandt D, Schwarz K, Biolik A, Heide S. Aktuelle Trends im Leichenschautraining bei Medizinstudierenden. Rechtsmedizin (Berl) 2020. [DOI: 10.1007/s00194-020-00400-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Cord-Landwehr S, Richter C, Wattjes J, Sreekumar S, Singh R, Basa S, El Gueddari NE, Moerschbacher BM. Patterns matter part 2: Chitosan oligomers with defined patterns of acetylation. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104577] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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25
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Schlundt A, Wirtz MA, Knezic B, Hengesbach M, Fürtig B, Weigand JE, Wöhnert J, Ferner J, Saxena K, Wacker A, Richter C, Sreeramulu S, Wirmer-Bartoschek J, Schwalbe H. Gemeinschaftlich in Krisenzeiten: NMR-Strukturbiologie gegen COVID-19. Biospektrum 2020; 26:440-441. [PMID: 32834541 PMCID: PMC7318729 DOI: 10.1007/s12268-020-1396-0] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Harald Schwalbe
- Institut für Organische Chemie und Chemische Biologie, Zentrum für Biomolekulare Magnetische Resonanz (BMRZ), Universität Frankfurt a. M., Max-von-Laue-Straße 7, D-60438 Frankfurt a. M., Deutschland
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26
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Quick MT, Quick M, Ioffe IN, Richter C, Mahrwald R, Druzhinin S, Kovalenko SA. Transient Rotamerism and Photoisomerization Dynamics of trans- and cis-Naphthylstilbene. J Phys Chem B 2020; 124:1049-1064. [PMID: 31941271 DOI: 10.1021/acs.jpcb.9b10710] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The rotamerism and photoisomerization of trans- and cis-1,2-di-(2-naphthyl)ethylene (tN and cN) are studied with stationary and transient absorption spectroscopies assisted by quantum chemical calculations. Absorption and emission spectra of rotamers (rotational isomers) tN-S (C2h-symmetric), tN-A (C1), and tN-S' (C2) are derived with a 53:47 ratio of tN-S to tN-A. Upon photoexcitation, the equilibration of the rotamers in S0 (rotamerization) is observed in the bleach region with characteristic time τrotamer ≈ 0.5 ns. With excitation at 364 nm, the S0 equilibrium shifts because, mainly, tN-A is bleached and the rotamerization becomes traceable, whereas with excitation at 345 nm, the equilibrium is preserved and the bleach spectrum remains unchanged. It is just long-lived (∼2 ns) S1 that allows for monitoring the rotamer dynamics in S0. Replacement of the stilbene phenyl rings with larger naphthyls increases the S1 → P torsional barrier E1act toward perpendicular configuration P both from cis and trans configurations. In tN, the radiative relaxation with τR ≈ 3.7 ns becomes the main deactivation channel, and accordingly, the measured decays show nearly no dependence on the solvent viscosity. The cis-to-trans photoisomerization occurs via two paths: adiabatic cS1 → P → tS1 (20%) and more common nonadiabatic cS1 → P → S0 (80%). The barrier cS1 → P in the cis-isomer is reduced in polar solvents because of a zwitterionic character of P. The P-state is directly detected with the cN isomer in acetonitrile by an excited-state absorption band at 400 nm developing with 0.7 ps and decaying with 1.6 ps. Two dihydrophenanthrene (DHP)-like products result from photoexcited cN. The metastable DHP-A builds up transiently from cN-A, and its spectrum at about 550 nm matches the published DHP absorption. The stable DHP-S' accumulates under stationary illumination and is formed either from excited cN-S' or metastable DHP-A.
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Affiliation(s)
- M T Quick
- Department for Optics and Atomic Physics , Technische Universität , Berlin 10623 , Germany
| | - M Quick
- Department of Chemistry , Humboldt-Universität zu Berlin , Berlin 10117 , Germany
| | - I N Ioffe
- Department of Chemistry , Lomonosov Moscow State University , Moscow 119991 , Russia
| | - C Richter
- Department of Chemistry , Humboldt-Universität zu Berlin , Berlin 10117 , Germany
| | - R Mahrwald
- Department of Chemistry , Humboldt-Universität zu Berlin , Berlin 10117 , Germany
| | - S Druzhinin
- Department of Chemistry & Biology , University of Siegen , Siegen 57076 , Germany
| | - S A Kovalenko
- Department of Chemistry , Humboldt-Universität zu Berlin , Berlin 10117 , Germany
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Gore S, Franklyn-Miller A, Richter C, King E, Falvey E, Moran K. The effects of rehabilitation on the biomechanics of patients with athletic groin pain. J Biomech 2020; 99:109474. [DOI: 10.1016/j.jbiomech.2019.109474] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 08/12/2019] [Accepted: 10/26/2019] [Indexed: 01/29/2023]
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Hahnel E, El Genedy M, Tomova‐Simitchieva T, Hauß A, Stroux A, Lechner A, Richter C, Akdeniz M, Blume‐Peytavi U, Löber N, Kottner J. The effectiveness of two silicone dressings for sacral and heel pressure ulcer prevention compared with no dressings in high‐risk intensive care unit patients: a randomized controlled parallel‐group trial. Br J Dermatol 2019; 183:256-264. [DOI: 10.1111/bjd.18621] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2019] [Indexed: 02/07/2023]
Affiliation(s)
- E. Hahnel
- Clinical Research Center for Hair and Skin Science Department of Dermatology and AllergyCharité – Universitätsmedizin Berlin Berlin Germany
| | - M. El Genedy
- Clinical Research Center for Hair and Skin Science Department of Dermatology and AllergyCharité – Universitätsmedizin Berlin Berlin Germany
| | - T. Tomova‐Simitchieva
- Clinical Research Center for Hair and Skin Science Department of Dermatology and AllergyCharité – Universitätsmedizin Berlin Berlin Germany
| | - A. Hauß
- Department of Clinical Quality and Risk Management Charité – Universitätsmedizin Berlin Berlin Germany
| | - A. Stroux
- Department of Biometry and Clinical Epidemiology Charité – Universitätsmedizin Berlin Berlin Germany
| | - A. Lechner
- Clinical Research Center for Hair and Skin Science Department of Dermatology and AllergyCharité – Universitätsmedizin Berlin Berlin Germany
| | - C. Richter
- Clinical Research Center for Hair and Skin Science Department of Dermatology and AllergyCharité – Universitätsmedizin Berlin Berlin Germany
| | - M. Akdeniz
- Clinical Research Center for Hair and Skin Science Department of Dermatology and AllergyCharité – Universitätsmedizin Berlin Berlin Germany
| | - U. Blume‐Peytavi
- Clinical Research Center for Hair and Skin Science Department of Dermatology and AllergyCharité – Universitätsmedizin Berlin Berlin Germany
| | - N. Löber
- Department of Clinical Quality and Risk Management Charité – Universitätsmedizin Berlin Berlin Germany
| | - J. Kottner
- Clinical Research Center for Hair and Skin Science Department of Dermatology and AllergyCharité – Universitätsmedizin Berlin Berlin Germany
- Department of Public Health and Primary Care Skin Integrity Research Group (SKINT) University Centre for Nursing and Midwifery Ghent University Ghent Belgium
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Hartoyo A, Lichtenthaeler K, Kurz E, Pantel T, Richter C, Scholz-Kreisel P, Ringel F, Keric N, Renovanz M. P03.04 Signaling questions assessing brain tumor patients’ distress in clinical routine - a feasibility study. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Approximately 20%-35% of patients with intracranial tumors show depressive symptoms and distress. Assessment in these patients remains challenging due to cognitive and/or neurological deficits. We developed 3 signaling questions in order to assess patients during patient-doctor consultation. The aim is to implement them in clinical routine and to compare the results with patient reported outcome measures (PROMs) along disease trajectory.
MATERIAL AND METHODS
Patients were prospectively examined in a structured interview applying the 3 following questions: 1),Has your mood worsened? (I)”; 2),Are you strained by physical changes? (II)”; 3),Has your faculty of thought decreased? (III)”. Simultaneously, patients filled in the Distress Thermometer (DT) and the EORTC QLQ-C30 + BN20. The first patient group was assessed twice pre- and postoperatively in the very early disease trajectory (A), the second patient group once in the outpatient setting during adjuvant therapy or follow-up (B). The results of the 3 signaling questions were compared to the results of the PROMs.
RESULTS
A total of n=62 patients gave informed consent and n= 61 were assessed so far. In general, the signaling questions were feasible to answer for all patients. However, patients frequently needed more detailed examples for symptoms emphasizing the intention of the question.
In group A (n= 20), patients had a mean age of 59 years, n= 12 (60%) were male. Main diagnoses were glioblastomas, meningiomas and metastases. The results of the signaling questions did not reflect the screening by DT: N= 11 (55%) reported that their mood has worsened (I) prior to the operation, which then improved to n= 5 (31%) patients afterwards. The same applied to physical changes (II, 10 (50%) vs. 7 (44%), as well as lower cognition (III, 7 (35%) vs. 4 (25%) respectively). In contrast, mean DT (5.7 vs. 6 after) as well as the mean number of positive responses to the problem lists on the DT was similar pre- and postoperatively (8.7 pre-op vs. 9.4 post-op).
Group B, (n= 41) consisted of patients harboring malignant gliomas, n= 27 (66%) were male. Patients had a mean DT score = 6.8, n= 22 (53%) named a worse mood (I), n= 23 (56%) patients reported physical changes (II) and n= 22 (54%) patients reported lower cognition (III), global health scale (GHS) according to the EORTC instrument was 60 (0–100). The majority of patients with a DT ≥6 also reported strain in the signaling questions and had a lower mean GHS = 54,8. DT ≥ 6 was linked to worse mood (I, Fishers exact, p=0.02).
CONCLUSION
According to our preliminary data, the signaling questions seem to be more useful in the outpatient setting in glioma patients than perioperatively. “Has your mood worsened” was associated with higher burden according to DT. Screening in brain tumor patients could probably complemented by direct questions in order to avoid missing patients who are not able to fill in questionnaires.
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Affiliation(s)
- A Hartoyo
- Department of Neurosurgery, University Medical Center Mainz, Mainz, Germany
| | - K Lichtenthaeler
- Department of Neurosurgery, University Medical Center Mainz, Mainz, Germany
| | - E Kurz
- Department of Neurosurgery, University Medical Center Mainz, Mainz, Germany
| | - T Pantel
- Department of Neurosurgery, University Medical Center Mainz, Mainz, Germany
| | - C Richter
- Department of Neurosurgery, University Medical Center Mainz, Mainz, Germany
| | - P Scholz-Kreisel
- Institute of Medical Biostatistics, Epidemiology and Informatics, University Medical Center Mainz, Mainz, Germany
| | - F Ringel
- Department of Neurosurgery, University Medical Center Mainz, Mainz, Germany
| | - N Keric
- Department of Neurosurgery, University Medical Center Mainz, Mainz, Germany
| | - M Renovanz
- Interdisciplinary Division of Neurooncology, University Medical Center Tuebingen, Tuebingen, Germany
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Hans A, Ozga C, Schmidt P, Hartmann G, Nehls A, Wenzel P, Richter C, Lant C, Holzapfel X, Viehmann JH, Hergenhahn U, Ehresmann A, Knie A. Setup for multicoincidence experiments of photons in the extreme ultraviolet to visible spectral range and charged particles-The solid angle maximization approach. Rev Sci Instrum 2019; 90:093104. [PMID: 31575280 DOI: 10.1063/1.5109104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 08/21/2019] [Indexed: 06/10/2023]
Abstract
The coincident detection of particles is a powerful method in experimental physics, enabling the investigation of a variety of projectile-target interactions. The vast majority of coincidence experiments is performed with charged particles, as they can be guided by electric or magnetic fields to yield large detection probabilities. When a neutral species or a photon is one of the particles recorded in coincidence, its detection probability typically suffers from small solid angles. Here, we present two optical assemblies considerably enhancing the solid angle for photon detection in the extreme ultraviolet to visible spectral range. The efficiency and versatility of these assemblies are demonstrated for electron-photon coincidence detection, where electrons and photons emerge from fundamental processes after photoexcitation of gaseous samples by synchrotron radiation.
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Affiliation(s)
- A Hans
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - C Ozga
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - Ph Schmidt
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - G Hartmann
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - A Nehls
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - Ph Wenzel
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - C Richter
- Leibniz Institute of Surface Engineering (IOM), Permoserstr. 15, 04318 Leipzig, Germany
| | - C Lant
- Department of Physics, New York University, 726 Broadway, New York, New York 10003, USA
| | - X Holzapfel
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - J H Viehmann
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - U Hergenhahn
- Leibniz Institute of Surface Engineering (IOM), Permoserstr. 15, 04318 Leipzig, Germany
| | - A Ehresmann
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
| | - A Knie
- Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
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Richter C, Bauer M. Charakterisierung stromaler Faktoren bei Mammakarzinomen von BRCA1- und BRCA2-Mutationsträgerinnen im Vergleich zum sporadischen Mammakarzinom. Geburtshilfe Frauenheilkd 2019. [DOI: 10.1055/s-0039-1693864] [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: 10/26/2022] Open
Affiliation(s)
- C Richter
- Universitätsklinikum Schleswig-Holstein, Klinik für Gynäkologie und Geburtshilfe, Kiel
| | - M Bauer
- Universitätsklinikum Schleswig-Holstein, Klinik für Gynäkologie und Geburtshilfe, Kiel
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32
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Richter C, Tiemann K, Arnold N, Lorenz M, Maas N, Bauer M. Charakterisierung stromaler Faktoren bei Mammakarzinomen von BRCA1- und BRCA2-Mutationsträgerinnen im Vergleich zum sporadischen Mammakarzinom. Geburtshilfe Frauenheilkd 2019. [DOI: 10.1055/s-0039-1692092] [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: 10/26/2022] Open
Affiliation(s)
- C Richter
- Universitätsklinikum Schleswig-Holstein, Klinik für Gynäkologie und Geburtshilfe
| | - K Tiemann
- Institut für Hämatopathologie Hamburg, Hamburg
| | - N Arnold
- Christian-Albrechts-Universität zu Kiel, Klinik für Gynäkologie und Geburtshilfe UKSH Onkologisches Labor, Campus Kiel
| | - M Lorenz
- Wildenstein Plattner Institut, Berlin
| | - N Maas
- Universitätsklinikum Schleswig-Holstein, Klinik für Gynäkologie und Geburtshilfe
| | - M Bauer
- Müller und Bauer, Frauenpraxis Ostufer, Kiel
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Khamfongkhruea C, Janssens G, Petzoldt J, Smeets J, Pausch G, Richter C. OC-0566 Range verification in proton therapy: Can prompt-gamma imaging identify the source of deviation? Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30986-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Peters N, Wohlfahrt P, Bolsi A, Dahlgren C, De Marzi L, Ellerbrock M, Fracchiolla F, Free J, Gomà C, Góra J, Kajdrowicz T, MacKay R, Molinelli S, Nørrevang O, Rinaldi I, Rompokos V, Van der Tol P, Vermeren X, Richter C. OC-0667 Experimental assessment of inter-centre variation and accuracy in SPR prediction within the EPTN. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31087-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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35
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Starke S, Leger S, Zwanenburg A, Pilz K, Lohaus F, Linge A, Zöphel K, Kotzerke J, Schreiber A, Tinhofer I, Budach V, Stuschke M, Balermpas P, Rödel C, Ganswindt U, Belka C, Pigorsch S, Combs S, Mönnich D, Zips D, Krause M, Baumann M, Richter C, Troost E, Löck S. OC-0496 Deep-learning based estimation of locoregional control for patients with locally advanced HNSCC. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30916-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Vempati S, Deinert JC, Gierster L, Bogner L, Richter C, Mutz N, Blumstengel S, Zykov A, Kowarik S, Garmshausen Y, Hildebrandt J, Hecht S, Stähler J. Uncovering the (un-)occupied electronic structure of a buried hybrid interface. J Phys Condens Matter 2019; 31:094001. [PMID: 30562727 DOI: 10.1088/1361-648x/aaf98a] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The energy level alignment at organic/inorganic (o/i) semiconductor interfaces is crucial for any light-emitting or -harvesting functionality. Essential is the access to both occupied and unoccupied electronic states directly at the interface, which is often deeply buried underneath thick organic films and challenging to characterize. We use several complementary experimental techniques to determine the electronic structure of p -quinquephenyl pyridine (5P-Py) adsorbed on ZnO(1 0 -1 0). The parent anchoring group, pyridine, significantly lowers the work function by up to 2.9 eV and causes an occupied in-gap state (IGS) directly below the Fermi level E F. Adsorption of upright-standing 5P-Py also leads to a strong work function reduction of up to 2.1 eV and to a similar IGS. The latter is then used as an initial state for the transient population of three normally unoccupied molecular levels through optical excitation and, due to its localization right at the o/i interface, provides interfacial sensitivity, even for thick 5P-Py films. We observe two final states above the vacuum level and one bound state at around 2 eV above E F, which we attribute to the 5P-Py LUMO. By the separate study of anchoring group and organic dye combined with the exploitation of the occupied IGS for selective interfacial photoexcitation, this work provides a new pathway for characterizing the electronic structure at buried o/i interfaces.
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Affiliation(s)
- S Vempati
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Abt. Physikalische Chemie, Faradayweg 4-6, 14195 Berlin, Germany
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Meijers A, Jakobi A, Stützer K, Guterres Marmitt G, Both S, Langendijk JA, Richter C, Knopf A. Log file-based dose reconstruction and accumulation for 4D adaptive pencil beam scanned proton therapy in a clinical treatment planning system: Implementation and proof-of-concept. Med Phys 2019; 46:1140-1149. [DOI: 10.1002/mp.13371] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 12/21/2018] [Accepted: 12/21/2018] [Indexed: 12/27/2022] Open
Affiliation(s)
- A. Meijers
- Department of Radiation Oncology; University Medical Center Groningen; University of Groningen; Groningen The Netherlands
| | - A. Jakobi
- Faculty of Medicine; University Hospital Carl Gustav Carus; OncoRay - National Center for Radiation Research in Oncology; Technische Universität Dresden; Helmholtz-Zentrum Dresden - Rossendorf; Dresden Germany
- Department of Radiotherapy and Radiation Oncology; Faculty of Medicine; University Hospital Carl Gustav Carus; Technische Universität Dresden; Dresden Germany
- Helmholtz-Zentrum Dresden - Rossendorf; Institute of Radiooncology - OncoRay; Dresden Germany
| | - K. Stützer
- Faculty of Medicine; University Hospital Carl Gustav Carus; OncoRay - National Center for Radiation Research in Oncology; Technische Universität Dresden; Helmholtz-Zentrum Dresden - Rossendorf; Dresden Germany
- Helmholtz-Zentrum Dresden - Rossendorf; Institute of Radiooncology - OncoRay; Dresden Germany
| | - G. Guterres Marmitt
- Department of Radiation Oncology; University Medical Center Groningen; University of Groningen; Groningen The Netherlands
| | - S. Both
- Department of Radiation Oncology; University Medical Center Groningen; University of Groningen; Groningen The Netherlands
| | - J. A. Langendijk
- Department of Radiation Oncology; University Medical Center Groningen; University of Groningen; Groningen The Netherlands
| | - C. Richter
- Faculty of Medicine; University Hospital Carl Gustav Carus; OncoRay - National Center for Radiation Research in Oncology; Technische Universität Dresden; Helmholtz-Zentrum Dresden - Rossendorf; Dresden Germany
- Department of Radiotherapy and Radiation Oncology; Faculty of Medicine; University Hospital Carl Gustav Carus; Technische Universität Dresden; Dresden Germany
- Helmholtz-Zentrum Dresden - Rossendorf; Institute of Radiooncology - OncoRay; Dresden Germany
- German Cancer Consortium (DKTK), Partner Site Dresden; German Cancer Research Center (DKFZ); Heidelberg Germany
| | - A. Knopf
- Department of Radiation Oncology; University Medical Center Groningen; University of Groningen; Groningen The Netherlands
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Ottenhausen M, Richter C, Ringel F, Coburger J, Renovanz M. P01.089 The patients’ perspective on information level about supportive care in glioma patients - post-hoc evaluation and development of an online survey focusing on patients’ information needs, clinical studies and alternative therapies. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.131] [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: 11/13/2022] Open
Affiliation(s)
- M Ottenhausen
- University Medical Centre Mainz, Neurosurgical Department, Mainz, Germany
| | - C Richter
- University Medical Centre Mainz, Neurosurgical Department, Mainz, Germany
| | - F Ringel
- University Medical Centre Mainz, Neurosurgical Department, Mainz, Germany
| | - J Coburger
- University Medical Centre Ulm, Neurosurgical Department, Ulm, Germany
| | - M Renovanz
- University Medical Centre Mainz, Neurosurgical Department, Mainz, Germany
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Hanson C, Richter C, Hein N, Smith L, Nordgren T, Anderson Berry A, Bisselou K, Kusi Appiah A, Skulas Ray A. Omega-3 Fatty Acid Intake in Pregnant and Non-Pregnant US: NHANES 2003-2014. J Acad Nutr Diet 2018. [DOI: 10.1016/j.jand.2018.06.082] [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: 10/28/2022]
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40
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Richter C, Lipperheide C, Lipke U, Lamprecht A. Impact of extractables from rubber closures on protein stability under heat stress. Eur J Pharm Biopharm 2018; 130:22-29. [DOI: 10.1016/j.ejpb.2018.06.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 06/05/2018] [Accepted: 06/08/2018] [Indexed: 10/14/2022]
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41
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Günther A, Weisner N, Richter C. Vaginale Untersuchung bei Geburt im Rettungsdienst. Notf Rett Med 2018. [DOI: 10.1007/s10049-018-0476-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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42
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Quinonez Uribe RA, Luther S, Richter C. P2835Low-energy control of spatiotemporal cardiac dynamics using structured photo-stimulation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2835] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- R A Quinonez Uribe
- Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany
| | - S Luther
- Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany
| | - C Richter
- Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany
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Dobryakov AL, Quick M, Richter C, Knie C, Ioffe IN, Granovsky AA, Mahrwald R, Ernsting NP, Kovalenko SA. Photoisomerization pathways and Raman activity of 1,1'-difluorostilbene. J Chem Phys 2018; 146:044501. [PMID: 28147515 DOI: 10.1063/1.4974357] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The photoisomerization of 1,1'-difluorostilbene, following S0→S1 optical excitation in solution, was studied with femtosecond broadband transient absorption and stimulated Raman spectroscopy, and by quantum-chemical calculations. In n-hexane, trans-to-cis (t→c) isomerization starts with Franck-Condon relaxation (τ1t = 0.07 ps) followed by nearly barrierless torsion around the ethylenic bond (τ2t ≈ 0.3 ps) to a perpendicular conformation P. About 50% of the excited molecules are trapped in P, while others reach the S1(cis) conformation adiabatically. For the opposite cis-to-trans (c→t) path, the dynamics in n-hexane (τ1c = 0.04 ps, τ2c = 0.7 ps) suggest a 5 kJ/mol barrier between the relaxed S1(cis) and P states. The subsequent P decay with τ3 = 0.4 ps is followed by much slower ground-state recovery (τ4 ≈ 3 ps), indicating an intermediate state X. The t→P and c→P torsion depend on solvent viscosity and polarity, whereas the P→X→S0 relaxation and residual torsion is viscosity-independent but still polarity-dependent. Photoisomerization yields are derived from the transient absorption data and compared to those from actinometric measurements. Low-frequency oscillations in the transient signal are assigned to nuclei motions. Transient and stationary stimulated Raman spectra are compared to calculations. Early Franck-Condon Raman spectra differ from those of the quasistationary trans or cis S1 state. The photoisomerization behavior of stilbene and vinyl-substituted derivatives is compared and the general features are discussed.
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Affiliation(s)
- A L Dobryakov
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, D-12489 Berlin, Germany
| | - M Quick
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, D-12489 Berlin, Germany
| | - C Richter
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, D-12489 Berlin, Germany
| | - C Knie
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, D-12489 Berlin, Germany
| | - I N Ioffe
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | | | - R Mahrwald
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, D-12489 Berlin, Germany
| | - N P Ernsting
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, D-12489 Berlin, Germany
| | - S A Kovalenko
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, D-12489 Berlin, Germany
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Wohlfahrt P, Möhler C, Lalonde A, Enghardt W, Krause M, Troost E, Greilich S, Richter C. OC-0085: Improving CT calibration for proton range prediction by dual-energy CT based patient-cohort analysis. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30395-5] [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] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Leger S, Zwanenburg A, Pilz K, Lohaus F, Linge A, Zöphel K, Kotzerke J, Schreiber A, Tinhofer I, Budach V, Sak A, Stuschke M, Balermpas P, Rödel C, Ganswindt U, Belka C, Pigorsch S, Combs S, Mönnich D, Zips D, Krause M, Baumann M, Richter C, Troost E, Löck S. OC-0508: Identification of tumour sub-volumes for improved radiomic risk modelling in locally advanced HNSCC. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30818-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Möhler C, Wohlfahrt P, Nicolay N, Richter C, Greilich S. EP-2089: Dual-energy CT enables dose calculation on scans with iodinated contrast agent. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32398-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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48
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Zwanenburg A, Leger S, Troost E, Richter C, Löck S. EP-2095: Perturbing single images as a surrogate for radiomic feature robustness test-retest experiments. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32404-6] [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: 10/14/2022]
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49
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Taasti V, Bäumer C, Dahlgren C, Deisher A, Ellerbrock M, Free J, Góra J, Kozera A, Lomax A, De Marzi L, Molinelli S, Teo B, Wohlfahrt P, Petersen J, Muren L, Hansen D, Richter C. PO-0969: Inter-center variability of CT-to-SPR conversion in particle therapy: Survey-based evaluation. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31279-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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50
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Gore SJ, Franklyn-Miller A, Richter C, Falvey EC, King E, Moran K. Is stiffness related to athletic groin pain? Scand J Med Sci Sports 2018; 28:1681-1690. [PMID: 29423946 DOI: 10.1111/sms.13069] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2018] [Indexed: 11/30/2022]
Abstract
Athletic groin pain (AGP) is a common injury prevalent in field sports. One biomechanical measure that may be of importance for injury risk is stiffness. To date, [corrected] however, stiffness has not been examined in AGP. The primary aim was to determine whether AGP affects vertical and joint stiffness and if so, whether successful rehabilitation is associated with a change in stiffness. Sixty-five male patients with AGP and fifty male controls were recruited to this study. Assessment included a biomechanical examination of stiffness during a lateral hurdle hop test. Subjects with AGP were tested pre- and post-rehabilitation, while controls were tested once. AGP subjects were cleared for return to play in a median time of 9.14 weeks (5.14-29.0). Stiffness was significantly different at pre-rehabilitation in comparison with controls for three [corrected] of the ten stiffness values examined: ankle plantar flexor, knee extensor, hip abductor, and vertical stiffness (P < .05, D = 0.38-0.81). [corrected]. Despite clearance for return to play, of these four variables, only hip abductor stiffness changed significantly from pre- to post-rehabilitation (P = .05, D = 0.36) [corrected] to become non-significantly different to the uninjured group (P = .23, D = 0.23). [corrected]. These findings suggest that hip abductor stiffness may represent a target for AGP rehabilitation. Conversely, given the clearance for return to play, the lower sagittal plane and vertical stiffness in the AGP group in comparison with the uninjured controls likely represents either a compensatory mechanism to reduce the risk of further injury or a consequence of neuromuscular detraining.
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Affiliation(s)
- S J Gore
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, UK.,School of Health and Human Performance, Dublin City University, Dublin, UK.,INSIGHT Centre for Data Analytics, Dublin City University, Dublin, UK
| | - A Franklyn-Miller
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, UK.,Centre for Health, Exercise and Sports Medicine, University of Melbourne, Melbourne, Australia
| | - C Richter
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, UK
| | - E C Falvey
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, UK.,Department of Medicine, University College Cork, Cork, UK
| | - E King
- Sports Medicine Research Department, Sports Surgery Clinic, Dublin, UK.,Department of Life Sciences, Roehampton University, Roehampton, UK
| | - K Moran
- School of Health and Human Performance, Dublin City University, Dublin, UK.,INSIGHT Centre for Data Analytics, Dublin City University, Dublin, UK
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