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Nickel AC, Picard D, Qin N, Wolter M, Kaulich K, Hewera M, Pauck D, Marquardt V, Torga G, Muhammad S, Zhang W, Schnell O, Steiger HJ, Hänggi D, Fritsche E, Her NG, Nam DH, Carro MS, Remke M, Reifenberger G, Kahlert UD. Longitudinal stability of molecular alterations and drug response profiles in tumor spheroid cell lines enables reproducible analyses. Biomed Pharmacother 2021; 144:112278. [PMID: 34628166 DOI: 10.1016/j.biopha.2021.112278] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 08/16/2021] [Revised: 09/29/2021] [Accepted: 09/29/2021] [Indexed: 11/18/2022] Open
Abstract
The utility of patient-derived tumor cell lines as experimental models for glioblastoma has been challenged by limited representation of the in vivo tumor biology and low clinical translatability. Here, we report on longitudinal epigenetic and transcriptional profiling of seven glioblastoma spheroid cell line models cultured over an extended period. Molecular profiles were associated with drug response data obtained for 231 clinically used drugs. We show that the glioblastoma spheroid models remained molecularly stable and displayed reproducible drug responses over prolonged culture times of 30 in vitro passages. Integration of gene expression and drug response data identified predictive gene signatures linked to sensitivity to specific drugs, indicating the potential of gene expression-based prediction of glioblastoma therapy response. Our data thus empowers glioblastoma spheroid disease modeling as a useful preclinical assay that may uncover novel therapeutic vulnerabilities and associated molecular alterations.
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Affiliation(s)
- A C Nickel
- Department of Neurosurgery, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany
| | - D Picard
- Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany; Institute of Neuropathology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany; German Cancer Consortium (DKTK), Partner Site Essen/Düsseldorf, Düsseldorf, Germany
| | - N Qin
- Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany; Institute of Neuropathology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany; German Cancer Consortium (DKTK), Partner Site Essen/Düsseldorf, Düsseldorf, Germany
| | - M Wolter
- Institute of Neuropathology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany
| | - K Kaulich
- Institute of Neuropathology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany
| | - M Hewera
- Department of Neurosurgery, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany
| | - D Pauck
- Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany; Institute of Neuropathology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany
| | - V Marquardt
- Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany; Institute of Neuropathology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany
| | - G Torga
- Drug Development Unit, Sarah Cannon Research Institute, London, UK
| | - S Muhammad
- Department of Neurosurgery, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany
| | - W Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - O Schnell
- Department of Neurosurgery, Medical Center and Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - H-J Steiger
- Department of Neurosurgery, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany
| | - D Hänggi
- Department of Neurosurgery, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany
| | - E Fritsche
- Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - N-G Her
- R&D Center, AIMEDBIO Inc., Seoul, South Korea
| | - D-H Nam
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University, Seoul 06351, South Korea
| | - M S Carro
- Department of Neurosurgery, Medical Center and Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - M Remke
- Department of Pediatric Oncology, Hematology and Clinical Immunology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany; Institute of Neuropathology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany; German Cancer Consortium (DKTK), Partner Site Essen/Düsseldorf, Düsseldorf, Germany
| | - G Reifenberger
- Institute of Neuropathology, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany; German Cancer Consortium (DKTK), Partner Site Essen/Düsseldorf, Düsseldorf, Germany
| | - U D Kahlert
- Department of Neurosurgery, University Hospital Düsseldorf and Medical Faculty, Heinrich Heine University Düsseldorf, Germany; Molecular and Experimental Surgery, Department of General, Visceral, Vascular, and Transplant Surgery, University Hospital Magdeburg, Magdeburg, Germany.
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Weller M, Gramatzki D, Felsberg J, Hentschel B, Wolter M, Schackert G, Westphal M, Regli L, Thon N, Tatagiba M, Wick W, Schlegel U, Krex D, Roth P, Rushing E, Pietsch T, von Deimling A, Sabel M, Loeffler M, Reifenberger G. 360O Telomerase reverse transcriptase (TERT) promoter mutation and O6-methylguanine DNA methyltransferase (MGMT) promoter methylation-mediated sensitivity to temozolomide in IDH-wildtype glioblastoma: Is there a link? Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.469] [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] Open
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3
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Valesky E, Kleimann P, Wolter M, Kaufmann R. Frankfurter Dermatologentagung − 6. November 2019. Akt Dermatol 2019. [DOI: 10.1055/a-0989-8591] [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: 10/25/2022]
Affiliation(s)
- E. Valesky
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt, Goethe-Universität, Frankfurt am Main
| | - P. Kleimann
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt, Goethe-Universität, Frankfurt am Main
| | - M. Wolter
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt, Goethe-Universität, Frankfurt am Main
| | - R. Kaufmann
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt, Goethe-Universität, Frankfurt am Main
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4
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Krell A, Wolter M, Stojcheva N, Hertler C, Liesenberg F, Zapatka M, Weller M, Malzkorn B, Reifenberger G. MiR-16-5p is frequently down-regulated in astrocytic gliomas and modulates glioma cell proliferation, apoptosis and response to cytotoxic therapy. Neuropathol Appl Neurobiol 2019; 45:441-458. [PMID: 30548945 DOI: 10.1111/nan.12532] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 11/30/2018] [Indexed: 11/28/2022]
Abstract
AIMS Aberrant expression of microRNAs (miRNAs) is frequent in various cancers including gliomas. We aimed to characterize the role of miR-16-5p as a candidate tumour suppressor miRNA in gliomas. METHODS Real-time PCR-based approaches were used for miRNA and mRNA expression profiling of glioma and non-neoplastic brain tissues as well as glioma cell lines. Protein levels were determined by Western blotting. In vitro analyses were performed following overexpression of miR-16-5p, trichostatin A (TSA) treatment, and siRNA-mediated knock-down of HDAC3 in glioma cells. Effects of miR-16-5p on glioma cell viability, apoptosis and response to irradiation and temozolomide (TMZ) were assessed. RESULTS Expression of miR-16-5p was reduced relative to control brain tissue in isocitrate dehydrogenase (IDH)-mutant astrocytomas of World Health Organization (WHO) grades II, III and IV, and a subset of IDH-wildtype glioblastomas WHO grade IV. MiR-16-5p expression was lower in IDH-mutant than in IDH-wildtype gliomas, and down-regulated in IDH-wildtype glioma lines. MiR-16-5p overexpression reduced expression of important cell cycle and apoptosis regulators in glioma cells, including CDK6, CDC25A, CCND3, CCNE1, WEE1, CHEK1, BCL2 and MCL1. In line, CDK6, WEE1, CHEK1, BCL2 and MCL1 transcript levels were increased in WHO grade III or IV gliomas. TSA treatment and HDAC3 knockdown in glioma cells induced miR-16-5p up-regulation and reduced expression of its targets. Moreover, miR-16-5p overexpression inhibited proliferation and induced apoptosis in various glioma cell lines and increased sensitivity of A172 glioma cells to irradiation and TMZ. CONCLUSION Reduced expression of miR-16-5p contributes to glioma cell proliferation, survival and resistance to cytotoxic therapy.
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Affiliation(s)
- A Krell
- Department of Neuropathology, Heinrich Heine University, Düsseldorf, Germany
| | - M Wolter
- Department of Neuropathology, Heinrich Heine University, Düsseldorf, Germany
| | - N Stojcheva
- Department of Neurology, University Hospital Zurich, Zurich, Switzerland
| | - C Hertler
- Department of Neurology, University Hospital Zurich, Zurich, Switzerland
| | - F Liesenberg
- Department of Neuropathology, Heinrich Heine University, Düsseldorf, Germany
| | - M Zapatka
- Division of Molecular Genetics, German Cancer Research Center, Heidelberg, Germany
| | - M Weller
- Department of Neurology, University Hospital Zurich, Zurich, Switzerland
| | - B Malzkorn
- Department of Neuropathology, Heinrich Heine University, Düsseldorf, Germany
| | - G Reifenberger
- Department of Neuropathology, Heinrich Heine University, Düsseldorf, Germany.,German Cancer Consortium (DKTK), Partner Site Essen/Düsseldorf, DKFZ, Heidelberg, Germany
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5
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Ochsendorf F, Kleimann P, Wolter M, Kaufmann R. Frankfurter Dermatologentagung – 31. Oktober 2018. Akt Dermatol 2018. [DOI: 10.1055/a-0685-2929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- F. Ochsendorf
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt, Goethe-Universität, Frankfurt am Main
| | - P. Kleimann
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt, Goethe-Universität, Frankfurt am Main
| | - M. Wolter
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt, Goethe-Universität, Frankfurt am Main
| | - R. Kaufmann
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt, Goethe-Universität, Frankfurt am Main
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Schindewolf M, Paulik M, Kroll H, Kaufmann R, Wolter M, Boehncke W, Lindhoff‐Last E, Recke A, Ludwig RJ. Low incidence of heparin‐induced skin lesions in orthopedic surgery patients with low‐molecular‐weight heparins. Clin Exp Allergy 2018; 48:1016-1024. [DOI: 10.1111/cea.13159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 01/29/2018] [Accepted: 02/22/2018] [Indexed: 12/24/2022]
Affiliation(s)
- M. Schindewolf
- Department of Internal Medicine Division of Hemostaseology Goethe University Hospital Frankfurt Frankfurt am Main Germany
- Division of Vascular Medicine Swiss Cardiovascular Center Inselspital Bern University Hospital Bern Switzerland
| | - M. Paulik
- Department of Internal Medicine Division of Hemostaseology Goethe University Hospital Frankfurt Frankfurt am Main Germany
| | - H. Kroll
- Institute for Transfusion Medicine Dessau Red Cross Blood Transfusion Service NSTOB Dessau Germany
| | - R. Kaufmann
- Department of Dermatology Goethe University Hospital Frankfurt Frankfurt am Main Germany
| | - M. Wolter
- Department of Dermatology Goethe University Hospital Frankfurt Frankfurt am Main Germany
| | - W.‐H. Boehncke
- Division of Dermatology and Venereology Geneva University Hospitals Geneva Switzerland
- Department of Pathology and Immunology University of Geneva Geneva Switzerland
| | - E. Lindhoff‐Last
- Department of Internal Medicine Division of Hemostaseology Goethe University Hospital Frankfurt Frankfurt am Main Germany
- Agaplesion Bethanien Hospital Cardiovascular Centre Bethanien (CCB) Frankfurt am Main Germany
| | - A. Recke
- Department of Dermatology and Lübeck Institute of Experimental Dermatology University of Lübeck Lübeck Germany
| | - R. J. Ludwig
- Department of Dermatology and Lübeck Institute of Experimental Dermatology University of Lübeck Lübeck Germany
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7
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Schindewolf M, Wolter M, Hardt K, Kaufmann R, Lindhoff-Last E, Ludwig RJ, Boehncke WH, Kahle B. Diagnosis of heparin-induced delayed type hypersensitivity. Phlebologie 2018. [DOI: 10.1055/s-0037-1622313] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryHeparin is commonly used for prevention and therapy of thromboembolic diseases. Recently, work from a prospective epidemiological investigation has indicated, that heparin-induced skin lesions may be more frequent, than expected. Commonly, delayed-type hypersensitivity reactions can be identified as the cause of heparin-induced skin lesions. Rarely, immediatetype hypersensitivity responses or immune-mediated heparin-induced thrombocytopenia (HIT) are diagnosed. It is of clinical importance to differentiate between those, as patient management is fundamentally different. Patients, methods: We evaluated diagnostic procedures used to identify causes of heparin-induced skin lesions. Based on clinical presentation, histology and/or allergologic testing in 32 patients, heparin-induced delayed-type hypersensitivity (HIHS) was diagnosed. Results: Sensitivity of histology and s.c. provocation was high, amounting to 100% or 78% respectively. All other tests were unspecific or had a low sensitivity: Immediate readings of prick tests were false negative in 81%. Patch, prick and i.c. testing had a sensitivity ranging from 3.1–15.6%. Conclusion: Based on these results and despite the limitations of histology we recommend performing a skin biopsy rather than allergologic testing for diagnosis of HIHS. Compared to allergologic testing, results from histology are sensitive, readily available and may allow a differentiation from other causes of heparin-induced skin lesions.
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8
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Meissner M, Kleimann P, Wolter M, Kaufmann R. Frankfurter Dermatologentagung – 1. November 2017. Akt Dermatol 2017. [DOI: 10.1055/s-0043-118403] [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: 10/18/2022]
Affiliation(s)
- M. Meissner
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - P. Kleimann
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - M. Wolter
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - R. Kaufmann
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
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9
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Mitchnick KA, Creighton SD, Cloke JM, Wolter M, Zaika O, Christen B, Van Tiggelen M, Kalisch BE, Winters BD. Dissociable roles for histone acetyltransferases p300 and PCAF in hippocampus and perirhinal cortex-mediated object memory. Genes Brain Behav 2017; 15:542-57. [PMID: 27251651 DOI: 10.1111/gbb.12303] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 05/27/2016] [Accepted: 05/29/2016] [Indexed: 10/21/2022]
Abstract
The importance of histone acetylation for certain types of memory is now well established. However, the specific contributions of the various histone acetyltransferases to distinct memory functions remain to be determined; therefore, we employed selective histone acetyltransferase protein inhibitors and short-interference RNAs to evaluate the roles of CREB-binding protein (CBP), E1A-binding protein (p300) and p300/CBP-associated factor (PCAF) in hippocampus and perirhinal cortex (PRh)-mediated object memory. Rats were tested for short- (STM) and long-term memory (LTM) in the object-in-place task, which relies on the hippocampus and PRh for spatial memory and object identity processing, respectively. Selective inhibition of these histone acetyltransferases by small-interfering RNA and pharmacological inhibitors targeting the HAT domain produced dissociable effects. In the hippocampus, CBP or p300 inhibition impaired long-term but not short-term object memory, while inhibition of PCAF impaired memory at both delays. In PRh, HAT inhibition did not impair STM, and only CBP and PCAF inhibition disrupted LTM; p300 inhibition had no effects. Messenger RNA analyses revealed findings consistent with the pattern of behavioral effects, as all three enzymes were upregulated in the hippocampus (dentate gyrus) following learning, whereas only CBP and PCAF were upregulated in PRh. These results demonstrate, for the first time, the necessity of histone acetyltransferase activity for PRh-mediated object memory and indicate that the specific mnemonic roles of distinctive histone acetyltransferases can be dissociated according to specific brain regions and memory timeframe.
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Affiliation(s)
- K A Mitchnick
- Department of Psychology, University of Guelph, Guelph, ON, Canada.,Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada
| | - S D Creighton
- Department of Psychology, University of Guelph, Guelph, ON, Canada.,Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada
| | - J M Cloke
- Department of Psychology, University of Guelph, Guelph, ON, Canada.,Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada
| | - M Wolter
- Department of Psychology, University of Guelph, Guelph, ON, Canada
| | - O Zaika
- Department of Biomedical Sciences, University of Guelph, Guelph, ON, Canada
| | - B Christen
- Department of Psychology, University of Guelph, Guelph, ON, Canada
| | - M Van Tiggelen
- Department of Biomedical Sciences, University of Guelph, Guelph, ON, Canada
| | - B E Kalisch
- Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada.,Department of Biomedical Sciences, University of Guelph, Guelph, ON, Canada
| | - B D Winters
- Department of Psychology, University of Guelph, Guelph, ON, Canada.,Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada
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Juratli H, Wolter M, Pfützner W. Testen Sie Ihr Fachwissen. Akt Dermatol 2017. [DOI: 10.1055/s-0042-116352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- H. Juratli
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Marburg
| | - M. Wolter
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Marburg
| | - W. Pfützner
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Marburg
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Weberschock T, Kleimann P, Wolter M, Kaufmann R. Frankfurter Dermatologentagung – 2. November 2016. Akt Dermatol 2016. [DOI: 10.1055/s-0042-117407] [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)
- T. Weberschock
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - P. Kleimann
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - M. Wolter
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - R. Kaufmann
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
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12
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Valesky E, Wolter M, Kaufmann R, Meissner M. Late-onset-Neurofibromatose bei einem 70-jährigen Patienten mit Lungentuberkulose. Akt Dermatol 2016. [DOI: 10.1055/s-0042-100994] [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: 10/22/2022]
Affiliation(s)
- E. Valesky
- Klinik für Dermatologie, Venerologie und Allergologie, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - M. Wolter
- Klinik für Dermatologie, Venerologie und Allergologie, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - R. Kaufmann
- Klinik für Dermatologie, Venerologie und Allergologie, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - M. Meissner
- Klinik für Dermatologie, Venerologie und Allergologie, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main
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Pinter A, Wolter M, Kaufmann R. Frankfurter Dermatologentagung – 11. November 2015, Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main. Akt Dermatol 2015. [DOI: 10.1055/s-0041-107769] [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: 10/22/2022]
Affiliation(s)
- A. Pinter
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt am Main
| | - M. Wolter
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt am Main
| | - R. Kaufmann
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Frankfurt am Main
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14
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Löser C, Dippel E, Wolter M, Haneke E. Kasuistik: Melanonychie im Kindesalter. Akt Dermatol 2015. [DOI: 10.1055/s-0035-1558574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
Coevolution between the sexes is often considered to be male-driven: the male genome is constantly scanned by selection for traits that increase relative male fertilization success. Whenever these traits are harmful to females, the female genome is scanned for resistance traits. The resulting antagonistic coevolution between the sexes is analogous to Red Queen dynamics, where adaptation and counteradaptation keep each other in check. However, the underlying assumption that male trait evolution precedes female trait counteradaptation has received few empirical tests. Using the gonochoristic nematode Caenorhabditis remanei, we now show that 20 generations of relaxed versus increased sexual selection pressure lead to female, but not to male, trait evolution, questioning the generality of a male-driven process.
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Affiliation(s)
- K Fritzsche
- Department of Animal Evolutionary Ecology, Institute for Evolution and Ecology, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - N Timmermeyer
- Department of Animal Evolutionary Ecology, Institute for Evolution and Ecology, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - M Wolter
- Department of Animal Evolutionary Ecology, Institute for Evolution and Ecology, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
| | - N K Michiels
- Department of Animal Evolutionary Ecology, Institute for Evolution and Ecology, University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany
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Veiser A, Kaulich K, Stepanow S, Wolter M, Kohrer K, Reifenberger G. P04.21 * MOLECULAR DIAGNOSTICS OF MALIGNANT GLIOMAS USING NEXT-GENERATION GENE PANEL SEQUENCING. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Codo P, Weller M, Meister G, Szabo E, Steinle A, Wolter M, Reifenberger G, Roth P. P02.04 * MICRORNA-MEDIATED DOWN-REGULATION OF NKG2D LIGAND EXPRESSION REDUCES GLIOMA CELL IMMUNOGENICITY. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.120] [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: 11/12/2022] Open
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Affiliation(s)
- M. Meissner
- Klinik für Dermatologie, Venerologie und Allergologie, Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - A. Pinter
- Klinik für Dermatologie, Venerologie und Allergologie, Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - M. Wolter
- Klinik für Dermatologie, Venerologie und Allergologie, Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - F. Ochsendorf
- Klinik für Dermatologie, Venerologie und Allergologie, Johann Wolfgang Goethe-Universität, Frankfurt am Main
| | - R. Kaufmann
- Klinik für Dermatologie, Venerologie und Allergologie, Johann Wolfgang Goethe-Universität, Frankfurt am Main
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Valesky EM, Wahle M, Vranes S, Wolter M, Kaufmann R, Meissner M. [Bitemporal scalp necrosis : a very rare manifestation of giant cell arteritis]. Z Rheumatol 2012; 71:806-9. [PMID: 22930065 DOI: 10.1007/s00393-012-1009-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
A 71-year-old woman developed progressive spreading of bitemporal scalp necrosis within 4 weeks accompanied by headaches, myalgia of the shoulder girdle and muscle weakness that had started a few months previously. No additional diseases were reported. The suspected temporal giant cell arteritis could be confirmed by temporal artery biopsy. Therapy with glucocorticoids led to a rapid resolution of clinical symptoms and was tapered over 18 months. Recovery of the scalp necrosis emerged following second intention healing and split-skin transplantation of necrotic areas after successful wound conditioning. The case study demonstrates a rare and serious complication of temporal arteritis which is often accompanied by a poor prognosis.
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Affiliation(s)
- E M Valesky
- Klinik für Dermatologie, Venerologie und Allergologie, Klinikum der Goethe-Universität, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Deutschland
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Dirks H, Esser S, Borgmann R, Wolter M, Fischer E, Potthoff A, Jablonka R, Schadendorf D, Brockmeyer N, Scherbaum N. Substance use and sexual risk behaviour among HIV-positive men who have sex with men in specialized out-patient clinics. HIV Med 2012; 13:533-40. [PMID: 22435363 DOI: 10.1111/j.1468-1293.2012.01005.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2012] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Unprotected sexual intercourse between men who have sex with men (MSM) is the most common route of HIV infection in Germany. Approximately 70% of newly infected people are MSM. Substance use is a determinant of sexual risk behaviour in the general population, but also in the MSM subpopulation. There are only a few studies, from the USA, on the correlation between substance use and sexual risk behaviour in HIV-infected MSM in specialized care. METHODS In a German sample of 445 HIV-infected MSM treated in specialized out-patient clinics, the influence of substance use on sexual risk behaviour was investigated. Information was obtained from subjects using self-report questionnaires and a structured interview. RESULTS Recreational drug use was common. The prevalences of cannabis addiction (4.5%), harmful use of cannabis (4.3%) and harmful use of dissociative anaesthetics (0.4%) were higher than in the general German male population. A substantial proportion of patients reported unprotected insertive (32.9%) and receptive (34.6%) anal intercourse during the last 12 months. Use of cannabis, amyl nitrite, dissociative anaesthetics, cocaine, amphetamines and erectile dysfunction medication was significantly correlated with unprotected sexual contacts. Substance use in the context of sexual activity significantly increased sexual risk behaviour. CONCLUSIONS Substance use, especially in the context of sexual activity, should be taken into account when developing new prevention and intervention programmes aimed at reducing sexual risk behaviour in HIV-infected MSM currently in specialized care.
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Affiliation(s)
- H Dirks
- Addiction Research Group at the Department of Psychiatry and Psychotherapy, LVR-Klinikum Essen, Hospital of the University of Duisburg-Essen, Essen, Germany
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Meissner M, Pinter A, Wolter M, Ochsendorf F, Kaufmann R. Multiple orale Papeln und Plaques bei einem Patienten mit Morbus Crohn. Akt Dermatol 2012. [DOI: 10.1055/s-0030-1256750] [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: 10/16/2022]
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Dittmann LM, Danner A, Gronych J, Wolter M, Stühler K, Grzendowski M, Becker N, Bageritz J, Goidts V, Toedt G, Felsberg J, Sabel MC, Barbus S, Reifenberger G, Lichter P, Tews B. Downregulation of PRDX1 by promoter hypermethylation is frequent in 1p/19q-deleted oligodendroglial tumours and increases radio- and chemosensitivity of Hs683 glioma cells in vitro. Oncogene 2011; 31:3409-18. [PMID: 22158042 DOI: 10.1038/onc.2011.513] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Deletions of chromosomal arms 1p and 19q are frequent in oligodendroglial tumours and linked to radio- and chemotherapy response as well as longer survival. The molecular mechanisms underlying this clinically important association are as yet unknown. Here, we studied the peroxiredoxin 1 (PRDX1) gene at 1p34.1 for promoter methylation and expression in primary gliomas and investigated its role in radio- and chemosensitivity of glioma cells in vitro. In total, we screened primary glioma tissues from 93 patients for methylation of the 5'-CpG island of PRDX1 by sodium bisulfite sequencing. PRDX1 mRNA and protein expression levels were determined in subsets of the tumours by quantitative PCR and western blot analysis, respectively. PRDX1 hypermethylation and reduced expression were frequently detected in oligodendroglial tumours and secondary glioblastomas, but not in primary glioblastomas. In oligodendroglial tumours, both PRDX1 hypermethylation and reduced mRNA expression were significantly associated with 1p/19q-deletion. Stable knockdown of PRDX1 by lentiviral transduction of short-hairpin (sh)RNA constructs significantly increased apoptosis and reduced cell viability of Hs683 glioma cells exposed to ionizing irradiation or temozolomide in vitro. Taken together, our findings indicate that epigenetic silencing of PRDX1 is frequent in 1p/19q-deleted oligodendroglial tumours and likely contributes to radio- and chemosensitivity of these tumours.
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Affiliation(s)
- L M Dittmann
- Division of Molecular Genetics, German Cancer Research Center, Heidelberg, Germany
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Schmitt L, Inhoff O, Wolter M, Dippel E. Testen Sie Ihr Fachwissen. Akt Dermatol 2011. [DOI: 10.1055/s-0030-1256855] [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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24
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Inhoff O, Wolter M, Spiethoff A, Dippel E. Suberythrodermie, periphere Eosinophilie, Lymphozytopenie und IgE-Erhöhung bei einem asiatischen Patienten – das deck chair signals Schlüssel zur Diagnose. Akt Dermatol 2011. [DOI: 10.1055/s-0030-1256680] [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: 10/17/2022]
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Beckers J, Ockenga T, Wolter M, Stoffels WW, van Dijk J, Kersten H, Kroesen GMW. Microparticles in a collisional Rf plasma sheath under hypergravity conditions as probes for the electric field strength and the particle charge. Phys Rev Lett 2011; 106:115002. [PMID: 21469868 DOI: 10.1103/physrevlett.106.115002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Indexed: 05/30/2023]
Abstract
We used microparticles under hypergravity conditions, induced by a centrifuge, in order to measure nonintrusively and spatially resolved the electric field strength as well as the particle charge in the collisional rf plasma sheath. The measured electric field strengths demonstrate good agreement with the literature, while the particle charge shows decreasing values towards the electrode. We demonstrate that it is indeed possible to measure these important quantities without changing or disturbing the plasma.
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Affiliation(s)
- J Beckers
- Eindhoven University of Technology, Department of Applied Physics P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
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26
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Pätzold S, Wolter M, Kaufmann R. Frankfurter Dermatologentagung. Akt Dermatol 2010. [DOI: 10.1055/s-0030-1255907] [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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Torres P, Quintanilla JC, Rozas M, Miranda P, Ibarra R, San Martín MF, Raddatz B, Wolter M, Villegas A, Canobra C, Hausdorf M, Silva R. Endohelminth parasites from salmonids in intensive culture from southern Chile. J Parasitol 2010; 96:669-70. [PMID: 20557217 DOI: 10.1645/ge-2211.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
A total of 228 salmonids (90 Oncorhynchus mykiss, 48 Oncorhynchus kisutch, and 90 Salmo salar) from 8 intensive aquaculture centers in the south of Chile were examined for endohelminths parasites between December 2008 and May 2009. The body cavities of 2 O. mykiss were infected by Diphyllobothrium sp. plerocercoids (prevalence: 6.7%, mean intensity: 1.0, mean abundance: 0.07) from the Lake Tarahuin hatchery on the south of Chiloé Island. Also, tetraphyllidean plerocercoids (prevalence: 3.3%, mean intensity: 1, mean abundance: 0.03) and fourth-stage larvae of Hysterothylacium aduncum (prevalence: 6.7%, mean intensity: 1, mean abundance 0.07) were observed in O. kisutch from a marine hatchery in Chiloé. The occurrences of Diphyllobothrium sp. in a lake and a tetraphyllidean plerocercoid from marine cultured salmonid in Chiloé are reported for first time. No muscular infection by helminths was recorded in the fish examined.
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Affiliation(s)
- P Torres
- Facultad de Medicina, Instituto de Parasitología, Universidad Austral de Chile, Casilla 567, Valdivia, Chile.
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Affiliation(s)
- M Meissner
- Department of Dermatology and Venerology, Johann Wolfgang Goethe-University, Frankfurt, Germany.
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29
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Kühl E, Wolter M, Löser C, Dippel E. Reaktive neutrophile Dermatosen. Akt Dermatol 2010. [DOI: 10.1055/s-0029-1244057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Schindewolf M, Scheuermann J, Kroll H, Garbaraviciene J, Hecking C, Marzi I, Wolter M, Kaufmann R, Boehncke W, Lindhoff-Last E, Ludwig R. PO-74 Allergic skin lesions are a rare adverse event under anticoagulant therapy with fondaparinux – results of a prospective investigation. Thromb Res 2010. [DOI: 10.1016/s0049-3848(10)70124-9] [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: 10/19/2022]
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31
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Schindewolf M, Schwaner S, Wolter M, Kroll H, Kaufmann R, Boehncke W, Lindhoff-Last E, Ludwig R. PO-65 Incidence and causes of heparin-induced skin lesions – results of a prospective investigation. Thromb Res 2010. [DOI: 10.1016/s0049-3848(10)70115-8] [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: 12/01/2022]
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Wolter M, Tedjo-Palczynski I, Hentschel B, Kuhlen T. Spatial input for temporal navigation in scientific visualizations. IEEE Comput Graph Appl 2009; 29:54-64. [PMID: 24806779 DOI: 10.1109/mcg.2009.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Scientific-visualization tools can make time-varying simulations easier to understand. The growing efficiency of today's high-performance computers enables simulation of physical phenomena with a high temporal resolution. Consequently, visualization systems require efficient navigation in the temporal dimension. This 3D user interface employs direct-manipulation metaphors for temporal navigation in scientific visualizations. By interacting with objects using their 3D trajectory, users can navigate in time by specifying spatial inputs.
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Meissner M, Wolter M, Kaufmann R. Frankfurter Dermatologentagung. Akt Dermatol 2009. [DOI: 10.1055/s-0029-1215173] [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: 10/20/2022]
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Wolter M, Penzholz H, Richter PL, Deschauer A. Ungewöhnlich großes sackförmiges Aneurysma der Arteria Basialis als Nebenbefund bei einem zerebralen Angiom. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1227244] [Citation(s) in RCA: 1] [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: 10/20/2022]
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Paradisi A, Abeni D, Rusciani A, Cigna E, Wolter M, Scuderi N, Rusciani L, Kaufmann R, Podda M. Dermatofibrosarcoma protuberans: Wide local excision vs. Mohs micrographic surgery. Cancer Treat Rev 2008; 34:728-36. [DOI: 10.1016/j.ctrv.2008.06.002] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2008] [Revised: 06/18/2008] [Accepted: 06/19/2008] [Indexed: 11/26/2022]
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Armbrüster C, Wolter M, Kuhlen T, Spijkers W, Fimm B. Depth perception in virtual reality: distance estimations in peri- and extrapersonal space. ACTA ACUST UNITED AC 2008; 11:9-15. [PMID: 18275307 DOI: 10.1089/cpb.2007.9935] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The present study investigated depth perception in virtual environments. Twenty-three participants verbally estimated ten distances between 40 cm and 500 cm in three different virtual environments in two conditions: (1) only one target was presented or (2) ten targets were presented at the same time. Additionally, the presence of a metric aid was varied. A questionnaire assessed subjective ratings about physical complaints (e.g., headache), the experience in the virtual world (e.g., presence), and the experiment itself (self-evaluation of the estimations). Results show that participants underestimate the virtual distances but are able to perceive the distances in the right metric order even when only very simple virtual environments are presented. Furthermore, interindividual differences and intraindividual stabilities can be found among participants, and neither the three different virtual environments nor the metric aid improved depth estimations. Estimation performance is better in peripersonal than in extrapersonal space. In contrast, subjective ratings provide a preferred space: a closed room with visible floor, ceiling, and walls.
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Affiliation(s)
- C Armbrüster
- Department of Computer Science, University of Applied Science, Sankt Augustin, Germany.
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38
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Schindewolf M, Ludwig RJ, Wolter M, Himsel A, Zgouras D, Kaufmann R, Boehncke WH, Lindhoff-Last E. Tolerance of fondaparinux in patients with generalized contact dermatitis to heparin. J Eur Acad Dermatol Venereol 2008; 22:378-80. [PMID: 18269612 DOI: 10.1111/j.1468-3083.2007.02333.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ludwig RJ, Henke U, Wolter M, Walker SL, Brandt C, Wichelhaus TA, Kramme S, Lockwood DNJ, Kaufmann R. Persistence of peri-neural granulomas after successful treatment of leprosy. J Eur Acad Dermatol Venereol 2007; 21:1414-6. [PMID: 17958851 DOI: 10.1111/j.1468-3083.2007.02208.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Affiliation(s)
- M Meissner
- Zentrum für Dermatologie und Venerologie, Johann Wolfgang Goethe-Universität, Theodor-Stern-Kai 7, 60590, Frankfurt am Main.
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42
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Henke U, Spieth K, Ziper F, Wolter M, Oeschger S, Böer A, Kaufmann R. Febrile ulceronecrotic lymphomatoid papulosis. J Eur Acad Dermatol Venereol 2007; 21:1260-1. [PMID: 17894721 DOI: 10.1111/j.1468-3083.2007.02150.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
The clinical picture in pyoderma gangrenosum varies but a typical medical history with resistance to antimicrobial treatment and worsening or first manifestation of disease because of surgical procedures are indications of this diagnosis. We describe the course of a woman patient who had a pyoderma gangrenosum for more than 1.5 years. After confirming the diagnosis an immunomodulating therapy was initiated until complete remission of the ulcers. Differential diagnosis and different clinicopathologic forms of pyoderma gangrenosum are discussed and an overview of the association with internal diseases is provided.
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Affiliation(s)
- E M Valesky
- Zentrum der Dermatologie und Venerologie, Johann Wolfgang Goethe-Universität, Theodor-Stern-Kai 7, Frankfurt, Germany.
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Abstract
Botryomycosis is a rare chronic bacterial infection, which can involve the skin as well as internal organs. Clinically and histologically it resembles actinomycosis and deep fungal infections. The most common causative organisms described are Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, but the pathogenesis of botryomycosis is still poorly understood. A 16-year-old girl presented with multiple erythematous solid and partly purulent nodules which were extremely resistant to therapy. In this case we could diagnose a botryomycosis caused by Staphylococcus aureus.
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Affiliation(s)
- M Meissner
- Zentrum der Dermatologie und Venerologie, Johann Wolfgang Goethe-Universität, Theodor-Stern-Kai 7, 60590 Frankfurt am Main.
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Hartmann C, Kunitz A, Wolter M, Tews B, Hahn M, Lichter P, Reifenberger G, von Deimling A. Promoter hypermethylation and aberrant expression of EMP3at 19q13.3 in oligodendrogliomas and astrocytomas. Akt Neurol 2007. [DOI: 10.1055/s-2007-987568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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47
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Piel A, Klindworth M, Arp O, Melzer A, Wolter M. Obliquely propagating dust-density plasma waves in the presence of an ion beam. Phys Rev Lett 2006; 97:205009. [PMID: 17155694 DOI: 10.1103/physrevlett.97.205009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2006] [Indexed: 05/12/2023]
Abstract
Self-excited dust-density waves are experimentally studied in a dusty plasma under microgravity. Two types of waves are observed: a mode inside the dust volume propagating in the direction of the ion flow and a new mode propagating obliquely at the boundary between the dusty plasma and the space-charge sheath. A model for dust-density waves propagating at an arbitrary angle with respect to the ion-flow direction is presented, which explains the preference for oblique or parallel modes as a function of ion velocity.
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Affiliation(s)
- A Piel
- IEAP, Christian-Albrechts-Universität zu Kiel, D-24098 Kiel, Germany.
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Yates W, Berk GI, Wolter M, Nino S, Kollipara S, Chavira R, Kisicki J. Ondansetron oral spray (Zensana) versus ondansetron oral tablets in a randomized, bioavailability study in adult subjects. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.8622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
8622 Background: Zensana ondansetron oral spray (ZSN) is the first oral spray 5-HT3 antagonist to deliver ondansetron, the most commonly prescribed anti-emetic for chemotherapy induced nausea and vomiting (CINV) through the oral cavity. ZSN achieves therapeutic drug levels by delivering small droplets of concentrated drug solution over the oral mucosa, which has a rich blood supply and has been shown to be an alternative drug delivery route. ZSN may offer certain advantages to patients experiencing CINV who have difficulty swallowing and holding down pills. Methods: This was a randomized, crossover, pharmacokinetic (PK) study where ZSN, administered as 4mg, 8mg, 12mg, and 8mg with a 30-sec hold before swallowing was evaluated in healthy subjects against an 8mg ondasetron (Zofran [ZFR]) tablet (reference). Treatments were separated by 48 hrs. PK samples were measured during the 24 hrs after dosing and were assayed using LC/MS/MS techniques. PK parameters were analyzed using a cross-over ANOVA model. Two treatments were concluded bioequivalent if the 90% CI of the geometric mean ratios for ln-transformed Cmax, AUC0-t, and AUC0-inf fell between the FDA guideline of 80% to 125%. Results: Thirty-two subjects (17 women, 15 men) received each of the 5 treatments, except for one man who did not receive the 12mg dose. The geometric mean ratios and the 90% CI for Cmax, AUC0-t, and AUC0-inf respectively, for each pair of treatments were as follows: ZSN 4mg vs 8mg tablet (TAB): 41%(39–43%); 45%(43–47%), and 47%(45–49%); ZSN 8mg vs 8mg TAB: 87%(83–91%), 98%(94–102%), and 99%(94–103%); ZSN 12mg vs 8mg TAB: 145%(138–152%), 157%(150–164%), and 157%(150–164%); and ZSN 8mg with a 30 sec hold vs 8mg TAB: 86%(82–90%), 99%(94–103%), and 99%(95–104%). There were no serious or unexpected adverse events (AE) and the safety profile was similar across all treatments. The most commonly reported AEs were constipation (11/32[34%]), headache (10/32[31%]), and dizziness (5/32[16%]) which were mild to moderate in severity. Conclusions: ZSN 8mg falls within the FDA criteria for bioequivalence, and is bioequivalent to an 8mg ZFR tablet. ZSN 4, 8, or 12mg has a similar safety profile as a ZFR 8 mg tablet. [Table: see text]
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Affiliation(s)
- W. Yates
- Hana Biosciences, Inc., South San Francisco, CA; MDS Pharma Services, Lincoln, NE
| | - G. I. Berk
- Hana Biosciences, Inc., South San Francisco, CA; MDS Pharma Services, Lincoln, NE
| | - M. Wolter
- Hana Biosciences, Inc., South San Francisco, CA; MDS Pharma Services, Lincoln, NE
| | - S. Nino
- Hana Biosciences, Inc., South San Francisco, CA; MDS Pharma Services, Lincoln, NE
| | - S. Kollipara
- Hana Biosciences, Inc., South San Francisco, CA; MDS Pharma Services, Lincoln, NE
| | - R. Chavira
- Hana Biosciences, Inc., South San Francisco, CA; MDS Pharma Services, Lincoln, NE
| | - J. Kisicki
- Hana Biosciences, Inc., South San Francisco, CA; MDS Pharma Services, Lincoln, NE
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Acosta D, Adelman J, Affolder T, Akimoto T, Albrow MG, Ambrose D, Amerio S, Amidei D, Anastassov A, Anikeev K, Annovi A, Antos J, Aoki M, Apollinari G, Arisawa T, Arguin JF, Artikov A, Ashmanskas W, Attal A, Azfar F, Azzi-Bacchetta P, Bacchetta N, Bachocou H, Badgett W, Barbaro-Galtieri A, Barker GJ, Barnes VE, Barnett BA, Baroiant S, Bauer G, Bedeschi F, Behari S, Belforte S, Bellettini G, Bellinger J, Belloni A, Ben-Haim E, Benjamin D, Beretvas A, Berry T, Bhatti A, Binkley M, Bisello D, Bishai M, Blair RE, Blocker C, Bloom K, Blumenfeld B, Bocci A, Bodek A, Bolla G, Bolshov A, Bortoletto D, Boudreau J, Bourov S, Brau B, Bromberg C, Brubaker E, Budagov J, Budd HS, Burkett K, Busetto G, Bussey P, Byrum KL, Cabrera S, Campanelli M, Campbell M, Canelli F, Canepa A, Casarsa M, Carlsmith D, Carosi R, Carron S, Cavalli-Sforza M, Castro A, Catastini P, Cauz D, Cerri A, Cerrito L, Chapman J, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho I, Cho K, Chokheli D, Chou JP, Chuang 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Glenzinski D, Gold M, Goldschmidt N, Goldstein D, Goldstein J, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Gotra Y, Goulianos K, Gresele A, Griffiths M, Grosso-Pilcher C, Grundler U, da Costa JG, Haber C, Hahn K, Hahn SR, Halkiadakis E, Hamilton A, Han BY, Handler R, Happacher F, Hara K, Hare M, Harr RF, Harris RM, Hartmann F, Hatakeyama K, Hauser J, Hays C, Hayward H, Heinemann B, Heinrich J, Hennecke M, Herndon M, Hill C, Hirschbuehl D, Hocker A, Hoffman KD, Holloway A, Hou S, Houlden MA, Huffman BT, Huang Y, Hughes RE, Huston J, Ikado K, Incandela J, Introzzi G, Iori M, Ishizawa Y, Issever C, Ivanov A, Iwata Y, Iyutin B, James E, Jang D, Jayatilaka B, Jeans D, Jensen H, Jeon EJ, Jones M, Joo KK, Jun SY, Junk T, Kamon T, Kang J, Karagoz Unel M, Karchin PE, Kato Y, Kemp Y, Kephart R, Kerzel U, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim MS, Kim SB, Kim SH, Kim YK, Kirby M, Kirsch L, Klimenko S, Klute M, Knuteson B, Ko BR, Kobayashi H, 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Torre S, Torretta D, Trischuk W, Tsuchiya R, Tsuno S, Tsybychev D, Turini N, Ukegawa F, Unverhau T, Uozumi S, Usynin D, Vacavant L, Vaiciulis A, Varganov A, Vejcik S, Velev G, Veszpremi V, Veramendi G, Vickey T, Vidal R, Vila I, Vilar R, Vollrath I, Volobouev I, von der Mey M, Wagner P, Wagner RG, Wagner RL, Wagner W, Wallny R, Walter T, Wan Z, Wang MJ, Wang SM, Warburton A, Ward B, Waschke S, Waters D, Watts T, Weber M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Williams HH, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe C, Wolter M, Worcester M, Worm S, Wright T, Wu X, Würthwein F, Wyatt A, Yagil A, Yamashita T, Yamamoto K, Yamaoka J, Yang C, Yang UK, Yao W, Yeh GP, Yoh J, Yorita K, Yoshida T, Yu I, Yu S, Yun JC, Zanello L, Zanetti A, Zaw I, Zetti F, Zhou J, Zucchelli S. Measurement of bottom-quark hadron masses in exclusive J/psi decays with the CDF detector. Phys Rev Lett 2006; 96:202001. [PMID: 16803166 DOI: 10.1103/physrevlett.96.202001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2005] [Indexed: 05/10/2023]
Abstract
We measure the masses of b hadrons in exclusively reconstructed final states containing a J/psi --> mu-mu+ decay using 220 pb(-1) of data collected by the CDF II experiment. We find: m(B+) = 5279.10 +/- 0.41(stat.) +/- 0.36(sys.) MeV/c2, m(B0) = 5279.63 +/- 0.53(stat.) +/- 0.33(sys.) MeV/c2, m(B(s)0) = 5366.01 +/- 0.73(stat.) +/- 0.33(sys.) MeV/c2, m(lambda(b)0) = 5619.7 +/- 1.2(stat.) +/- 1.2(sys.) MeV/c2. m(B+) - m(B0) = -0.53 +/- 0.67(stat.) +/- 0.14(sys.) MeV/c2, m(B(s)0) - m(B0) = 86.38 +/- 0.90(stat.) +/- 0.06(sys.) MeV/c2, m(lambda(b)0) - m(B0) = 339.2 +/- 1.4(stat.) +/- 0.1(sys.) MeV/c2. The measurements of the B(s)0, lambda(b)0 mass, m(B(s)0) - m(B0) and m(lambda(b)0) - m(B0) mass difference are of better precision than the current world averages.
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Affiliation(s)
- D Acosta
- University of Florida, Gainesville, Florida 32611, USA
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Meissner M, Bauer R, Beier C, Betz C, Wolter M, Kaufmann R, Gille J. Sodium Thiosulphate as a Promising Therapeutic Option to Treat Calciphylaxis. Dermatology 2006; 212:373-6. [PMID: 16707889 DOI: 10.1159/000092290] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2005] [Accepted: 11/13/2005] [Indexed: 01/02/2023] Open
Abstract
A 35-year-old haemodialysis-dependent woman with chronic renal failure developed large, very painful necrotic ulcers and necrosis on the thighs, buttocks and the abdomen with signs of fast progression. The skin biopsy specimens showed a broad necrosis of the epidermis and thrombosed dermal vessels with focal calcium deposits within the wall. In addition, laboratory findings presented an increased product of serum calcium and phosphate concentrations. Thus, we diagnosed calciphylaxis on the basis of clinical, biochemical and histopathological criteria. We initiated a therapy in which our patient was treated with intravenous sodium thiosulphate 3 times weekly. Already after 2 weeks of treatment, no new lesions were detectable and there was a dramatic pain relief. In the following 4 weeks, a successive decline of the ulcers and the healing of individual tissue defects could be seen. Four months after the start of the therapy, the patient underwent successful renal transplantation. Thus, the intravenous therapy of calciphylaxis with sodium thiosulphate might be a new effective alternative in the treatment of this life-threatening disease.
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Affiliation(s)
- M Meissner
- Department of Dermatology, Johann Wolfgang Goethe University, Frankfurt, Germany.
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