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Kasprzak J, Westphalen CB, Frey S, Schmitt Y, Heinemann V, Fey T, Nasseh D. Supporting the decision to perform molecular profiling for cancer patients based on routinely collected data through the use of machine learning. Clin Exp Med 2024; 24:73. [PMID: 38598013 PMCID: PMC11006770 DOI: 10.1007/s10238-024-01336-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 03/21/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND Personalized medicine offers targeted therapy options for cancer treatment. However, the decision whether to include a patient into next-generation sequencing (NGS) testing is not standardized. This may result in some patients receiving unnecessary testing while others who could benefit from it are not tested. Typically, patients who have exhausted conventional treatment options are of interest for consideration in molecularly targeted therapy. To assist clinicians in decision-making, we developed a decision support tool using routine data from a precision oncology program. METHODS We trained a machine learning model on clinical data to determine whether molecular profiling should be performed for a patient. To validate the model, the model's predictions were compared with decisions made by a molecular tumor board (MTB) using multiple patient case vignettes with their characteristics. RESULTS The prediction model included 440 patients with molecular profiling and 13,587 patients without testing. High area under the curve (AUC) scores indicated the importance of engineered features in deciding on molecular profiling. Patient age, physical condition, tumor type, metastases, and previous therapies were the most important features. During the validation MTB experts made the same decision of recommending a patient for molecular profiling only in 10 out of 15 of their previous cases but there was agreement between the experts and the model in 9 out of 15 cases. CONCLUSION Based on a historical cohort, our predictive model has the potential to assist clinicians in deciding whether to perform molecular profiling.
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Affiliation(s)
- Julia Kasprzak
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital Munich, Pettenkoferstraße 8a, Munich, Germany.
| | - C Benedikt Westphalen
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital Munich, Pettenkoferstraße 8a, Munich, Germany
| | - Simon Frey
- Roche Pharma AG, Grenzach-Wyhlen, Germany
| | | | - Volker Heinemann
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital Munich, Pettenkoferstraße 8a, Munich, Germany
- German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK, Partner Site Munich), Heidelberg, Germany
| | - Theres Fey
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital Munich, Pettenkoferstraße 8a, Munich, Germany
| | - Daniel Nasseh
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital Munich, Pettenkoferstraße 8a, Munich, Germany
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2
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Marino ML, Kazmaier L, Krendelsberger A, Müller S, Kesting S, Fey T, Nasseh D. How can current oncological datasets be adjusted to support the automated patient recruitment in clinical trials? Health Informatics J 2024; 30:14604582241235632. [PMID: 38491907 DOI: 10.1177/14604582241235632] [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] [Indexed: 03/18/2024]
Abstract
OBJECTIVES This study aims to identify necessary adjustments required in existing oncological datasets to effectively support automated patient recruitment. METHODS We extracted and categorized the inclusion and exclusion criteria from 115 oncological trials registered on ClinicalTrials.gov in 2022. These criteria were then compared with the content of the oBDS (Oncological Base Dataset version 3.0), Germany's legally mandated oncological data standard. RESULTS The analysis revealed that 42.9% of generalized inclusion and exclusion criteria are typically present as data fields in the oBDS. On average, 54.6% of all criteria per trial were covered. Notably, certain criteria such as comorbidities, pregnancy status, and laboratory values frequently appeared in trial protocols but were absent in the oBDS. CONCLUSION The omission of criteria, notably comorbidities, within the oBDS restricts its functionality to support trial recruitment. Addressing this limitation would enhance its overall effectiveness. Furthermore, the implications of these findings extend beyond Germany, suggesting potential relevance and applicability to oncological datasets globally.
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Affiliation(s)
- Maria-Luisa Marino
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital, Munich, Germany
| | - Lara Kazmaier
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital, Munich, Germany
| | | | - Silvia Müller
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital, Munich, Germany; Comprehensive Cancer Center, Technical University of Munich Hospital Rechts der Isar, Munich, Germany
| | - Sabine Kesting
- Preventive Pediatrics, Department of Sport and Health Sciences, Technical University of Munich, Munich, Germany; Department of Pediatrics and Children's Cancer Research Centre, TUM School of Medicine, Kinderklinik München Schwabing, Technical University of Munich, Munich, Germany
| | - Theres Fey
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital, Munich, Germany
| | - Daniel Nasseh
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital, Munich, Germany
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3
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Weiss L, Dorman K, Boukovala M, Schwinghammer F, Jordan P, Fey T, Hasselmann K, Subklewe M, Bücklein V, Bargou R, Goebeler M, Sayehli C, Spoerl S, Lüke F, Heudobler D, Claus R, von Luettichau I, Lorenzen S, Lange S, Westphalen CB, von Bergwelt-Baildon M, Heinemann V, Gießen-Jung C. Early clinical trial unit tumor board: a real-world experience in a national cancer network. J Cancer Res Clin Oncol 2023; 149:13383-13390. [PMID: 37490102 PMCID: PMC10587227 DOI: 10.1007/s00432-023-05196-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 07/17/2023] [Indexed: 07/26/2023]
Abstract
PURPOSE Early clinical trials are the first step into clinical therapies for new drugs. Within the six Bavarian university-based hospitals (Augsburg, Erlangen, Regensburg, Munich (LMU and TU), Würzburg) we have enrolled a virtual network platform for patient discussion. METHODS The virtual Early Clinical Trial Unit Tumor Board (ECTU Tumor Board) is a secured web-based meeting to evaluate early clinical trial options for patients, where representatives from local ECTUs participate. We retrospectively analyzed patient cases discussed between November 2021 and November 2022. RESULTS From November 2021 to November 2022, a total of 43 patients were discussed in the ECTU Tumor Board. Median age at diagnosis was 44.6 years (range 10-76 years). The median number of previous lines of therapies was 3.7 (range 1-9 therapies) including systemic treatment, surgery, and radiation therapy. A total of 27 different tumor entities were presented and 83.7% (36/43) patients received at least one trial recommendation. In total, 21 different active or shortly recruiting clinical trials were recommended: ten antibody trials, four BiTE (bispecific T cell engager) trials, six CAR (chimeric antigen receptor) T-cell trials, and one chemotherapy trial. Only six trials (28.6%) were recommended on the basis of the previously performed comprehensive genetic profiling (CGP). CONCLUSION The ECTU Tumor Board is a feasible and successful network, highlighting the force of virtual patient discussions for improving patient care as well as trial recruitment in advanced diseases. It can provide further treatment options after local MTB presentation, aiming to close the gap to access clinical trials.
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Affiliation(s)
- L Weiss
- Department Medicine III (Hematology and Oncology), LMU University Hospital Munich, Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - K Dorman
- Department Medicine III (Hematology and Oncology), LMU University Hospital Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - M Boukovala
- Department Medicine III (Hematology and Oncology), LMU University Hospital Munich, Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - F Schwinghammer
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
| | - P Jordan
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
| | - T Fey
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital Munich, Munich, Germany
| | - K Hasselmann
- Department Medicine III (Hematology and Oncology), LMU University Hospital Munich, Munich, Germany
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital Munich, Munich, Germany
| | - M Subklewe
- Department Medicine III (Hematology and Oncology), LMU University Hospital Munich, Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - V Bücklein
- Department Medicine III (Hematology and Oncology), LMU University Hospital Munich, Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - R Bargou
- Comprehensive Cancer Center Mainfranken, University Hospital Würzburg, Würzburg, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - M Goebeler
- Early Clinical Trials Unit, Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - C Sayehli
- Early Clinical Trials Unit, Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - S Spoerl
- Department of Internal Medicine 5 (Hematology and Clinical Oncology), Friedrich-Alexander-Universität Erlangen-Nürnberg, University Hospital Erlangen, Erlangen, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - F Lüke
- Department of Internal Medicine III (Hematology and Oncology), University Hospital Regensburg, Regensburg, Germany
- Division of Personalized Tumor Therapy, Fraunhofer Institute for Toxicology and Experimental Medicine, Regensburg, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - D Heudobler
- Department of Internal Medicine III (Hematology and Oncology), University Hospital Regensburg, Regensburg, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - R Claus
- Department of Hematology and Clinical Oncology, University Medical Center Augsburg, Augsburg, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - I von Luettichau
- Department of Pediatrics and Children's Cancer Research Center, TUM School of Medicine, Kinderklinik München Schwabing, Technical University of Munich, Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - S Lorenzen
- Department of Medicine II (Gastroenterology), Klinikum Rechts Der Isar, Technical University of Munich, Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - S Lange
- Department of Medicine II (Gastroenterology), Klinikum Rechts Der Isar, Technical University of Munich, Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - C B Westphalen
- Department Medicine III (Hematology and Oncology), LMU University Hospital Munich, Munich, Germany
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital Munich, Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - M von Bergwelt-Baildon
- Department Medicine III (Hematology and Oncology), LMU University Hospital Munich, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - V Heinemann
- Department Medicine III (Hematology and Oncology), LMU University Hospital Munich, Munich, Germany
- Comprehensive Cancer Center (CCC Munich LMU), LMU University Hospital Munich, Munich, Germany
- Bavarian Cancer Research Center (BZKF), Munich, Germany
| | - C Gießen-Jung
- Department Medicine III (Hematology and Oncology), LMU University Hospital Munich, Munich, Germany.
- Bavarian Cancer Research Center (BZKF), Munich, Germany.
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4
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Jost N, Erickson N, Bratu E, Nasseh D, Morasch V, Kraus-Pfeiffer G, Heinemann V, Fey T. Closing the cancer care gap with a patient-reported nutrition screening: A retrospective analysis of a quality improvement project on an oncology ward (CCC study). Clin Nutr ESPEN 2023; 57:246-252. [PMID: 37739664 DOI: 10.1016/j.clnesp.2023.06.029] [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: 11/30/2022] [Revised: 03/22/2023] [Accepted: 06/25/2023] [Indexed: 09/24/2023]
Abstract
BACKGROUND & AIMS Early identification of patients at risk for malnutrition followed by individualized nutrition interventions is a central step to the provision of appropriate nutrition care. However, a health care professional (HCP)-based nutrition screening is not always consistently integrated into routine care. Patient-reported (PR) nutrition screening could thus potentially alleviate the burden on the HCPs and contribute to a greater number of patients who are identified and treated for malnutrition. METHODS In 2021 a Quality Improvement Project (QIP) at our out-patient oncology clinic was undertaken to implement the change from a HCP-based nutrition screening to a PR-screening. This was followed by a retrospective analysis in which the primary outcome measure was the rate of nutrition consultations initiated for patients undergoing cancer therapy. RESULTS In total n = 1657 patient data sets derived from comparable time periods before and after the QIP were analyzed and compared. Both groups had a comparable mean age and gender distribution. The most common diagnosis in both groups was gastrointestinal tumors. The change in routine care from a HCP-based nutrition screening to a PR-screening led to a significant increase in nutrition consultation rates (RD = 19%; p < 0.001; 95% CI 14.4%-23.5%) and screening rates (RD = 30.5%; p < 0.001; 95% CI 26.2%-34.7%). CONCLUSIONS The change to PR-screening potentially facilitates an increase in nutrition screening rates. This in turn leads to an increased rate of patients identified at risk for malnutrition and thus referrals for nutrition consultations. Our findings indicate that a PR nutrition screening tool could play a role in closing the care gap and contribute to reducing rates of malnutrition among this population where screening is not consistently integrated into routine care.
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Affiliation(s)
- Nicole Jost
- Comprehensive Cancer Center (CCC Munich LMU), Ludwig Maximilians University (LMU) University Hospital, Munich, Germany.
| | - Nicole Erickson
- Comprehensive Cancer Center (CCC Munich LMU), Ludwig Maximilians University (LMU) University Hospital, Munich, Germany
| | - Elena Bratu
- Comprehensive Cancer Center (CCC Munich LMU), Ludwig Maximilians University (LMU) University Hospital, Munich, Germany
| | - Daniel Nasseh
- Comprehensive Cancer Center (CCC Munich LMU), Ludwig Maximilians University (LMU) University Hospital, Munich, Germany
| | - Vinzenz Morasch
- Comprehensive Cancer Center (CCC Munich LMU), Ludwig Maximilians University (LMU) University Hospital, Munich, Germany
| | - Gabriele Kraus-Pfeiffer
- Comprehensive Cancer Center (CCC Munich LMU), Ludwig Maximilians University (LMU) University Hospital, Munich, Germany
| | - Volker Heinemann
- Comprehensive Cancer Center (CCC Munich LMU), Ludwig Maximilians University (LMU) University Hospital, Munich, Germany; Department of Oncology and Hematology, Ludwig Maximilians University (LMU) Hospital, Munich, Germany
| | - Theres Fey
- Comprehensive Cancer Center (CCC Munich LMU), Ludwig Maximilians University (LMU) University Hospital, Munich, Germany
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5
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Nasseh D, Schneiderbauer S, Lange M, Schweizer D, Heinemann V, Belka C, Cadenovic R, Buysse L, Erickson N, Mueller M, Kortuem K, Niyazi M, Marschner S, Fey T. Optimizing the Analytical Value of Oncology-Related Data Based on an In-Memory Analysis Layer: Development and Assessment of the Munich Online Comprehensive Cancer Analysis Platform. J Med Internet Res 2020; 22:e16533. [PMID: 32077858 PMCID: PMC7195671 DOI: 10.2196/16533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/10/2020] [Accepted: 01/24/2020] [Indexed: 11/18/2022] Open
Abstract
Background Many comprehensive cancer centers incorporate tumor documentation software supplying structured information from the associated centers’ oncology patients for internal and external audit purposes. However, much of the documentation data included in these systems often remain unused and unknown by most of the clinicians at the sites. Objective To improve access to such data for analytical purposes, a prerollout of an analysis layer based on the business intelligence software QlikView was implemented. This software allows for the real-time analysis and inspection of oncology-related data. The system is meant to increase access to the data while simultaneously providing tools for user-friendly real-time analytics. Methods The system combines in-memory capabilities (based on QlikView software) with innovative techniques that compress the complexity of the data, consequently improving its readability as well as its accessibility for designated end users. Aside from the technical and conceptual components, the software’s implementation necessitated a complex system of permission and governance. Results A continuously running system including daily updates with a user-friendly Web interface and real-time usage was established. This paper introduces its main components and major design ideas. A commented video summarizing and presenting the work can be found within the Multimedia Appendix. Conclusions The system has been well-received by a focus group of physicians within an initial prerollout. Aside from improving data transparency, the system’s main benefits are its quality and process control capabilities, knowledge discovery, and hypothesis generation. Limitations such as run time, governance, or misinterpretation of data are considered.
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Affiliation(s)
- Daniel Nasseh
- Comprehensive Cancer Center Munich, Munich, Germany.,Comprehensive Cancer Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Sophie Schneiderbauer
- Comprehensive Cancer Center Munich, Munich, Germany.,Comprehensive Cancer Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Michael Lange
- Comprehensive Cancer Center Munich, Munich, Germany.,Comprehensive Cancer Center, Technical University Munich, Munich, Germany
| | - Diana Schweizer
- Comprehensive Cancer Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Volker Heinemann
- Comprehensive Cancer Center Munich, Munich, Germany.,Comprehensive Cancer Center, Ludwig-Maximilians-Universität München, Munich, Germany.,German Cancer Consortium (DKTK, partner site Munich), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Claus Belka
- Comprehensive Cancer Center Munich, Munich, Germany.,German Cancer Consortium (DKTK, partner site Munich), German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - Ranko Cadenovic
- Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Laurence Buysse
- Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Nicole Erickson
- Comprehensive Cancer Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | | | | | - Maximilian Niyazi
- German Cancer Consortium (DKTK, partner site Munich), German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - Sebastian Marschner
- German Cancer Consortium (DKTK, partner site Munich), German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Radiation Oncology, University Hospital, LMU Munich, Munich, Germany
| | - Theres Fey
- Comprehensive Cancer Center, Ludwig-Maximilians-Universität München, Munich, Germany
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Stern M, Giebels M, Fey T, Lübking M, Alferink J, Hempel G. 24 Clinical validation study to derive conversion factors from capillary blood concentration to plasma concentration for venlafaxine and desvenlafaxine. PHARMACOPSYCHIATRY 2020. [DOI: 10.1055/s-0040-1710132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- M Stern
- Institut für Pharmazeutische und Medizinische Chemie – Klinische Pharmazie, Westfälische Wilhelms-Universität
| | - M Giebels
- Gerontopsychiatrie, LWL-Klinik Münster
| | - T Fey
- Gerontopsychiatrie, LWL-Klinik Münster
| | - M Lübking
- Damian-Klinik, Alexianer Münster GmbH
| | | | - G Hempel
- Institut für Pharmazeutische und Medizinische Chemie – Klinische Pharmazie, Westfälische Wilhelms-Universität
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Abstract
In the field of oncology, survival analysis is one of the most important tools in terms of measuring therapy success, evaluating risk or prognostic factors. Within this work, a variety of common survival analyses were embedded into a real-time analysis platform based on a comprehensive oncological dataset. The analysis platform utilizes an in-memory database, therefore allowing spontaneous adjustments of the survival curves to selections and stratifications. In contrast to classical statistics, where individual scripts have to be formulated for every possible request, the running system allows the deduction of instantaneous results.
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Affiliation(s)
- Sophie Schneiderbauer
- Comprehensive Cancer Center Munich - LMU, Hospital of the Ludwig-Maximilians-University Munich, Bavaria, Germany
| | - Diana Schweizer
- Comprehensive Cancer Center Munich - LMU, Hospital of the Ludwig-Maximilians-University Munich, Bavaria, Germany
| | - Theres Fey
- Comprehensive Cancer Center Munich - LMU, Hospital of the Ludwig-Maximilians-University Munich, Bavaria, Germany
| | - Daniel Nasseh
- Comprehensive Cancer Center Munich - LMU, Hospital of the Ludwig-Maximilians-University Munich, Bavaria, Germany
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Erickson N, Storck LJ, Kolm A, Norman K, Fey T, Schiffler V, Ottery FD, Jager-Wittenaar H. Tri-country translation, cultural adaptation, and validity confirmation of the Scored Patient-Generated Subjective Global Assessment. Support Care Cancer 2019; 27:3499-3507. [DOI: 10.1007/s00520-019-4637-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 01/07/2019] [Indexed: 01/28/2023]
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9
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Erickson N, Vogt L, Kolm A, Norman K, Fey T, Schiffler V, Ottery F, Jager-Wittenaar H. Linguistic and content validation of the german scored patient-generated subjective global assessment for the austrian, german and swiss setting. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1470] [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: 11/26/2022]
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Belli R, Haunschild L, Petschelt A, Fey T, Lohbauer U. Phase partitioning of material properties in Enamic. Dent Mater 2017. [DOI: 10.1016/j.dental.2017.08.021] [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: 10/18/2022]
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Fey T, Schubert KM, Schneider H, Fein E, Kleinert E, Pohl U, Dendorfer A. Impaired endothelial shear stress induces podosome assembly
via
VEGF up‐regulation. FASEB J 2016; 30:2755-66. [DOI: 10.1096/fj.201500091r] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 04/12/2016] [Indexed: 01/03/2023]
Affiliation(s)
- Theres Fey
- Walter‐Brendel‐Centre of Experimental Medicine, Ludwig‐Maximilians‐Universität MünchenMunichGermany
| | - Kai Michael Schubert
- Walter‐Brendel‐Centre of Experimental Medicine, Ludwig‐Maximilians‐Universität MünchenMunichGermany
| | - Holger Schneider
- Walter‐Brendel‐Centre of Experimental Medicine, Ludwig‐Maximilians‐Universität MünchenMunichGermany
| | - Evelyn Fein
- Walter‐Brendel‐Centre of Experimental Medicine, Ludwig‐Maximilians‐Universität MünchenMunichGermany
| | - Eike Kleinert
- Walter‐Brendel‐Centre of Experimental Medicine, Ludwig‐Maximilians‐Universität MünchenMunichGermany
| | - Ulrich Pohl
- Walter‐Brendel‐Centre of Experimental Medicine, Ludwig‐Maximilians‐Universität MünchenMunichGermany
- German Centre for Cardiovascular Research (DZHK)‐Munich Heart AllianceMunichGermany
- Munich Cluster for Systems NeurologyMunichGermany
| | - Andreas Dendorfer
- Walter‐Brendel‐Centre of Experimental Medicine, Ludwig‐Maximilians‐Universität MünchenMunichGermany
- German Centre for Cardiovascular Research (DZHK)‐Munich Heart AllianceMunichGermany
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Schneider H, Schubert KM, Blodow S, Kreutz CP, Erdogmus S, Wiedenmann M, Qiu J, Fey T, Ruth P, Lubomirov LT, Pfitzer G, Mederos y Schnitzler M, Hardie DG, Gudermann T, Pohl U. AMPK Dilates Resistance Arteries via Activation of SERCA and BK
Ca
Channels in Smooth Muscle. Hypertension 2015; 66:108-16. [DOI: 10.1161/hypertensionaha.115.05514] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 04/30/2015] [Indexed: 01/12/2023]
Affiliation(s)
- Holger Schneider
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Kai Michael Schubert
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Stephanie Blodow
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Claus-Peter Kreutz
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Serap Erdogmus
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Margarethe Wiedenmann
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Jiehua Qiu
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Theres Fey
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Peter Ruth
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Lubomir T. Lubomirov
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Gabriele Pfitzer
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Michael Mederos y Schnitzler
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - D. Grahame Hardie
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Thomas Gudermann
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
| | - Ulrich Pohl
- From the Walter-Brendel Centre of Experimental Medicine and Biomedical Center (H.S., K.M.S., S.B., C.-P.K., M.W., J.Q., T.F., U.P.) and Walther Straub Institute, Pharmacology (S.E., M.M.y.S., T.G.), Ludwig-Maximilians Universität München, Munich, Germany; Munich Cluster for Systems Neurology (SyNergy), Munich, Germany (H.S., K.M.S., S.B., U.P.); DZHK (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (H.S., K.M.S., S.B., T.F., M.M.y.S., T.G., U.P.)
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Hellfritsch J, Kirsch J, Schneider M, Fluege T, Wortmann M, Frijhoff J, Dagnell M, Fey T, Esposito I, Kölle P, Pogoda K, Angeli JPF, Ingold I, Kuhlencordt P, Östman A, Pohl U, Conrad M, Beck H. Knockout of mitochondrial thioredoxin reductase stabilizes prolyl hydroxylase 2 and inhibits tumor growth and tumor-derived angiogenesis. Antioxid Redox Signal 2015; 22:938-50. [PMID: 25647640 PMCID: PMC4376289 DOI: 10.1089/ars.2014.5889] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
AIMS Mitochondrial thioredoxin reductase (Txnrd2) is a central player in the control of mitochondrial hydrogen peroxide (H2O2) abundance by serving as a direct electron donor to the thioredoxin-peroxiredoxin axis. In this study, we investigated the impact of targeted disruption of Txnrd2 on tumor growth. RESULTS Tumor cells with a Txnrd2 deficiency failed to activate hypoxia-inducible factor-1α (Hif-1α) signaling; it rather caused PHD2 accumulation, Hif-1α degradation and decreased vascular endothelial growth factor (VEGF) levels, ultimately leading to reduced tumor growth and tumor vascularization. Increased c-Jun NH2-terminal Kinase (JNK) activation proved to be the molecular link between the loss of Txnrd2, an altered mitochondrial redox balance with compensatory upregulation of glutaredoxin-2, and elevated PHD2 expression. INNOVATION Our data provide compelling evidence for a yet-unrecognized mitochondrial Txnrd-driven, regulatory mechanism that ultimately prevents cellular Hif-1α accumulation. In addition, simultaneous targeting of both the mitochondrial thioredoxin and glutathione systems was used as an efficient therapeutic approach in hindering tumor growth. CONCLUSION This work demonstrates an unexpected regulatory link between mitochondrial Txnrd and the JNK-PHD2-Hif-1α axis, which highlights how the loss of Txnrd2 and the resulting altered mitochondrial redox balance impairs tumor growth as well as tumor-related angiogenesis. Furthermore, it opens a new avenue for a therapeutic approach to hinder tumor growth by the simultaneous targeting of both the mitochondrial thioredoxin and glutathione systems.
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Affiliation(s)
- Juliane Hellfritsch
- 1 Walter Brendel Centre of Experimental Medicine, Munich Heart Alliance, Ludwig-Maximilians-University , Munich, Germany
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Wolff F, Zirkel L, Betzold S, Jakob M, Maier V, Nachtrab F, Nicolat BC, Fey T, Münstedt H. Using Supercritical Carbon Dioxide for Physical Foaming of Advanced Polymer Materials. INT POLYM PROC 2013. [DOI: 10.3139/217.2469] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Foams from high performance polymers find more and more interest. The processes to generate them can be difficult, however. It is shown how physical foaming with CO2 can be used as a first step to assess the potentials of such materials. For investigations of such kind an autoclave on a laboratory scale which allows pressure variations up to 300 bars and temperatures up to 300°C was set up. The samples are saturated with supercritical carbon dioxide (s.c. CO2) which acts as a foaming agent. Depending on the process and material parameters different foam characteristics and cell morphologies were obtained and characterised. The potential of this method is demonstrated for two different classes of advanced polymer materials, thermoplastic fluoropolymers (FEP), and a silicone resin. In the case of the fluoropolymer, previously prepared films were foamed and the effects of various process parameters on the foam characteristics were investigated. Besides the general potential of foams from fluoropolymers, they are candidates for polymeric piezoelectric materials with a relatively high temperature stability. Silicone polymers possess some properties superior to common organic polymers. First results on the foaming behaviour of a silicone resin are presented.
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Affiliation(s)
- F. Wolff
- Institute of Polymer Materials, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | - L. Zirkel
- Institute of Polymer Materials, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | - S. Betzold
- Institute of Polymer Materials, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | - M. Jakob
- Institute of Polymer Materials, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | - V. Maier
- Institute of General Materials Properties, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | - F. Nachtrab
- Development Center X-Ray Technology (EZRT), Fraunhofer Gesellschaft, Fürth, Germany
| | - B. Ceron Nicolat
- Institute of Glass and Ceramics, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | - T. Fey
- Institute of Glass and Ceramics, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
| | - H. Münstedt
- Institute of Polymer Materials, Friedrich-Alexander-University Erlangen-Nürnberg, Germany
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Knorr T, Ceron Nicolat B, Fey T, Etzold B. Hierarchisch strukturierte Kohlenstoffmaterialien für die Katalyse. CHEM-ING-TECH 2010. [DOI: 10.1002/cite.201050228] [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: 11/09/2022]
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16
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Fey T, Fischer H, Bachmann S, Albert K, Bolm C. Silica-supported TEMPO catalysts: synthesis and application in the Anelli oxidation of alcohols. J Org Chem 2001; 66:8154-9. [PMID: 11722219 DOI: 10.1021/jo010535q] [Citation(s) in RCA: 182] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The application of silica-supported TEMPO as a recyclable catalyst in the Anelli oxidation of alcohols is reported. The catalyst is easily obtained in a one-step reductive amination procedure starting from a commercially available aminopropyl-functionalized silica. Details of the synthesis of the supported catalyst and its analysis by MAS NMR are presented. Various alcohol oxidations according to the Anelli protocol have been carried out and the stability of the applied silica-supported TEMPO has been studied.
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Affiliation(s)
- T Fey
- Institut für Organische Chemie der RWTH Aachen, Professor-Pirlet Strasse 1, D-52056 Aachen, Germany
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Djuric SW, BaMaung NY, Basha A, Liu H, Luly JR, Madar DJ, Sciotti RJ, Tu NP, Wagenaar FL, Wiedeman PE, Zhou X, Ballaron S, Bauch J, Chen YW, Chiou XG, Fey T, Gauvin D, Gubbins E, Hsieh GC, Marsh KC, Mollison KW, Pong M, Shaughnessy TK, Sheets MP, Smith M, Trevillyan JM, Warrior U, Wegner CD, Carter GW. 3,5-Bis(trifluoromethyl)pyrazoles: a novel class of NFAT transcription factor regulator. J Med Chem 2000; 43:2975-81. [PMID: 10956206 DOI: 10.1021/jm990615a] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of bis(trifluoromethyl)pyrazoles (BTPs) has been found to be a novel inhibitor of cytokine production. Identified initially as inhibitors of IL-2 synthesis, the BTPs have been optimized in this regard and even inhibit IL-2 production with a 10-fold enhancement over cyclosporine in an ex vivo assay. Additionally, the BTPs show inhibition of IL-4, IL-5, IL-8, and eotaxin production. Unlike the IL-2 inhibitors, cyclosporine and FK506, the BTPs do not directly inhibit the dephosphorylation of NFAT by calcineurin.
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Affiliation(s)
- S W Djuric
- Immunological Diseases Research, Abbott Laboratories, 200 Abbott Park Road, Abbott Park, Illinois 60064-6217, USA.
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Funke M, Kopka L, Fey T, Grabbe E. [Broadband ultrasound attenuation (BUA) in the diagnosis of osteoporosis]. Radiologe 1993; 33:462-5. [PMID: 8372173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The measurement of broadband ultrasound attenuation (BUA) of the calcaneus has been introduced as a new technique that provides information about both bone mass and structure without the use of ionizing radiation. BUA measurements of the calcaneus were obtained in 324 patients, 109 of whom had osteoporosis. Two hundred and fifteen patients served as control group. BUA values were compared with dual-energy X-ray absorptiometry (DXA) measurements of the lumbar spine, the neck and the heel. The precision error of BUA was 4.1%. The correlation with spinal bone mineral density was r = 0.49, with DXA of the neck r = 0.52 and of the calcaneus r = 0.56, respectively. Patients with osteoporosis showed a significant decrease in BUA compared with healthy subjects (61.4 dB/MHz vs 74.6 dB/MHz). Roc analysis demonstrated that BUA was inferior to DXA of the lumbar spine in detecting osteoporosis.
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Affiliation(s)
- M Funke
- Abteilung Röntgendiagnostik I, Universität Göttingen
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Rantsordas S, Perrin M, Gharnati F, Lecocq S, Vogt W, Fey T, B�hmer V. Crystal and molecular structure of the (1 : 1) clathrate between a calix[4]arene containing onep-nitrophenol unit and toluene. ACTA ACUST UNITED AC 1990. [DOI: 10.1007/bf01041258] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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