1
|
Palizzotto C, Ferri F, Callegari C, Rossi F, Manfredi M, Carcangiu L, Gerardi G, Ferro S, Cavicchioli L, Müller E, Weiss M, Vogt A, Lavatelli F, Ricagno S, Hurley K, Zini E. Renal amyloid-A amyloidosis in cats: Characterization of proteinuria and biomarker discovery, and associations with kidney histology. J Vet Intern Med 2024; 38:205-215. [PMID: 37991136 PMCID: PMC10800178 DOI: 10.1111/jvim.16920] [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: 04/18/2023] [Accepted: 10/13/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND Amyloid A (AA) amyloidosis is a protein misfolding disease arising from serum amyloid A (SAA). Systemic AA amyloidosis recently was shown to have a high prevalence in shelter cats in Italy and was associated with azotemia and proteinuria. OBJECTIVES Investigate urine protein profiles and diagnostic biomarkers in cats with renal AA amyloidosis. ANIMALS Twenty-nine shelter cats. METHODS Case-control study. Cats with renal proteinuria that died or were euthanized between 2018 and 2021 with available necropsy kidney, liver and spleen samples, and with surplus urine collected within 30 days before death, were included. Histology was used to characterize renal damage and amyloid amount and distribution; immunohistochemistry was used to confirm AA amyloidosis. Urine protein-to-creatinine (UPC) and urine amyloid A-to-creatinine (UAAC) ratios were calculated, and sodium dodecyl sulfate-agarose gel electrophoresis (SDS-AGE) and liquid chromatography-mass spectrometry (LC-MS) of proteins were performed. RESULTS Twenty-nine cats were included. Nineteen had AA amyloidosis with renal involvement. Cats with AA amyloidosis had a higher UPC (median, 3.9; range, 0.6-12.7 vs 1.5; 0.6-3.1; P = .03) and UAAC ratios (median, 7.18 × 10-3 ; range, 23 × 10-3 -21.29 × 10-3 vs 1.26 × 10-3 ; 0.21 × 10-3 -6.33 × 10-3 ; P = .04) than unaffected cats. The SDS-AGE identified mixed-type proteinuria in 89.4% of cats with AA amyloidosis and in 55.6% without AA amyloidosis (P = .57). The LC-MS identified 63 potential biomarkers associated with AA amyloidosis (P < .05). Among these, urine apolipoprotein C-III was higher in cats with AA amyloidosis (median, 1.38 × 107 ; range, 1.85 × 105 -5.29 × 107 vs 1.76 × 106 ; 0.0 × 100 -1.38 × 107 ; P = .01). In the kidney, AA-amyloidosis was associated with glomerulosclerosis (P = .02) and interstitial fibrosis (P = .05). CONCLUSIONS AND CLINICAL IMPORTANCE Renal AA amyloidosis is associated with kidney lesions, increased proteinuria and increased urine excretion of SAA in shelter cats. Additional studies are needed to characterize the role of lipid transport proteins in the urine of affected cats.
Collapse
Affiliation(s)
- Carlo Palizzotto
- AniCura Istituto Veterinario NovaraGranozzo con MonticelloNOItaly
| | - Felippo Ferri
- AniCura Istituto Veterinario NovaraGranozzo con MonticelloNOItaly
- Department of Animal Medicine, Production and HealthUniversity of PadovaLegnaroPDItaly
- Studio Veterinario Associato Vet2Vet di Ferri e PorporatoOrbassanoTOItaly
| | | | - Francesco Rossi
- AniCura Istituto Veterinario NovaraGranozzo con MonticelloNOItaly
| | - Marcello Manfredi
- Department of Translational MedicineUniversity of Piemonte OrientaleNovaraItaly
| | - Laura Carcangiu
- Department of Translational MedicineUniversity of Piemonte OrientaleNovaraItaly
| | - Gabriele Gerardi
- Department of Animal Medicine, Production and HealthUniversity of PadovaLegnaroPDItaly
| | - Silvia Ferro
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroPDItaly
| | - Laura Cavicchioli
- Department of Comparative Biomedicine and Food ScienceUniversity of PadovaLegnaroPDItaly
| | - Elizabeth Müller
- Laboklin, Laboratory for Clinical DiagnosticsBad KissingenGermany
| | - Marco Weiss
- Laboklin, Laboratory for Clinical DiagnosticsBad KissingenGermany
| | - Anne‐Catherine Vogt
- Department of Rheumatology and ImmunologyUniversity Hospital BernBernSwitzerland
- Department of BioMedical ResearchUniversity of BernBernSwitzerland
- Graduate School for Cellular and Biomedical Sciences (GCB)University of BernBernSwitzerland
| | | | - Stefano Ricagno
- Institute of Molecular and Translational CardiologyIRCCS Policlinico San DonatoMilanItaly
- Department of BiosciencesUniversità degli Studi di MilanoMilanItaly
| | | | - Eric Zini
- AniCura Istituto Veterinario NovaraGranozzo con MonticelloNOItaly
- Department of Animal Medicine, Production and HealthUniversity of PadovaLegnaroPDItaly
- Clinic for Small Animal Internal Medicine, Vetsuisse FacultyUniversity of ZurichZurichSwitzerland
| |
Collapse
|
2
|
Schieder AK, Müller E, Heusinger A, Eule JC. The role of Gram-negative bacteria in equine ocular infectious diseases. PFERDEHEILKUNDE 2023. [DOI: 10.21836/pem20230102] [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: 12/23/2022]
|
3
|
de Vries C, Grinwis G, Staszyk C, Hendricks A, Christen M, Leeb T, Kehl A, Müller E, Booij-Vrieling H. Dental-Skeletal-Retinal Anomaly – A New Autosomal Recessive Inherited Syndrome in Cane Corso Dogs. J Comp Pathol 2022. [DOI: 10.1016/j.jcpa.2021.11.059] [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]
|
4
|
Lee JWL, Tikhonov DS, Chopra P, Maclot S, Steber AL, Gruet S, Allum F, Boll R, Cheng X, Düsterer S, Erk B, Garg D, He L, Heathcote D, Johny M, Kazemi MM, Köckert H, Lahl J, Lemmens AK, Loru D, Mason R, Müller E, Mullins T, Olshin P, Passow C, Peschel J, Ramm D, Rompotis D, Schirmel N, Trippel S, Wiese J, Ziaee F, Bari S, Burt M, Küpper J, Rijs AM, Rolles D, Techert S, Eng-Johnsson P, Brouard M, Vallance C, Manschwetus B, Schnell M. Time-resolved relaxation and fragmentation of polycyclic aromatic hydrocarbons investigated in the ultrafast XUV-IR regime. Nat Commun 2021; 12:6107. [PMID: 34671016 PMCID: PMC8528970 DOI: 10.1038/s41467-021-26193-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 09/17/2021] [Indexed: 11/18/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) play an important role in interstellar chemistry and are subject to high energy photons that can induce excitation, ionization, and fragmentation. Previous studies have demonstrated electronic relaxation of parent PAH monocations over 10-100 femtoseconds as a result of beyond-Born-Oppenheimer coupling between the electronic and nuclear dynamics. Here, we investigate three PAH molecules: fluorene, phenanthrene, and pyrene, using ultrafast XUV and IR laser pulses. Simultaneous measurements of the ion yields, ion momenta, and electron momenta as a function of laser pulse delay allow a detailed insight into the various molecular processes. We report relaxation times for the electronically excited PAH*, PAH+* and PAH2+* states, and show the time-dependent conversion between fragmentation pathways. Additionally, using recoil-frame covariance analysis between ion images, we demonstrate that the dissociation of the PAH2+ ions favors reaction pathways involving two-body breakup and/or loss of neutral fragments totaling an even number of carbon atoms.
Collapse
Affiliation(s)
- J. W. L. Lee
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - D. S. Tikhonov
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9764.c0000 0001 2153 9986Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - P. Chopra
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9764.c0000 0001 2153 9986Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - S. Maclot
- grid.4514.40000 0001 0930 2361Department of Physics, Lund University, Lund, Sweden ,grid.8761.80000 0000 9919 9582Physics Department, University of Gothenburg, Gothenburg, Sweden
| | - A. L. Steber
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9764.c0000 0001 2153 9986Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany ,grid.9026.d0000 0001 2287 2617Center for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany
| | - S. Gruet
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - F. Allum
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - R. Boll
- grid.434729.f0000 0004 0590 2900European XFEL, Schenefeld, Germany
| | - X. Cheng
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - S. Düsterer
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - B. Erk
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - D. Garg
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9026.d0000 0001 2287 2617Department of Physics, Universität Hamburg, Hamburg, Germany
| | - L. He
- grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - D. Heathcote
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - M. Johny
- grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - M. M. Kazemi
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - H. Köckert
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - J. Lahl
- grid.4514.40000 0001 0930 2361Department of Physics, Lund University, Lund, Sweden
| | - A. K. Lemmens
- grid.5590.90000000122931605Radboud University, FELIX Laboratory, Nijmegen, The Netherlands ,grid.7177.60000000084992262Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - D. Loru
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9764.c0000 0001 2153 9986Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - R. Mason
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - E. Müller
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - T. Mullins
- grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - P. Olshin
- grid.15447.330000 0001 2289 6897Saint Petersburg State University, Saint Petersburg, Russia
| | - C. Passow
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - J. Peschel
- grid.4514.40000 0001 0930 2361Department of Physics, Lund University, Lund, Sweden
| | - D. Ramm
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - D. Rompotis
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.434729.f0000 0004 0590 2900European XFEL, Schenefeld, Germany
| | - N. Schirmel
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - S. Trippel
- grid.9026.d0000 0001 2287 2617Center for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany ,grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - J. Wiese
- grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9026.d0000 0001 2287 2617Department of Chemistry, Universität Hamburg, Hamburg, Germany
| | - F. Ziaee
- grid.36567.310000 0001 0737 1259J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS USA
| | - S. Bari
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - M. Burt
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - J. Küpper
- grid.9026.d0000 0001 2287 2617Center for Ultrafast Imaging, Universität Hamburg, Hamburg, Germany ,grid.9026.d0000 0001 2287 2617Department of Physics, Universität Hamburg, Hamburg, Germany ,grid.7683.a0000 0004 0492 0453Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9026.d0000 0001 2287 2617Department of Chemistry, Universität Hamburg, Hamburg, Germany
| | - A. M. Rijs
- grid.5590.90000000122931605Radboud University, FELIX Laboratory, Nijmegen, The Netherlands ,grid.12380.380000 0004 1754 9227Division of BioAnalytical Chemistry, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - D. Rolles
- grid.36567.310000 0001 0737 1259J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS USA
| | - S. Techert
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.7450.60000 0001 2364 4210Institute for X-Ray Physics, Georg-August-Universität, Göttingen, Germany
| | - P. Eng-Johnsson
- grid.4514.40000 0001 0930 2361Department of Physics, Lund University, Lund, Sweden
| | - M. Brouard
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - C. Vallance
- grid.4991.50000 0004 1936 8948The Chemistry Research Laboratory, University of Oxford, Oxford, United Kingdom
| | - B. Manschwetus
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - M. Schnell
- grid.7683.a0000 0004 0492 0453Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany ,grid.9764.c0000 0001 2153 9986Institute of Physical Chemistry, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| |
Collapse
|
5
|
Dörfler HD, Müller E. Mizellbildung von Fluortensiden / Micelle Formation of Fluorosurfactants. TENSIDE SURFACT DET 2021. [DOI: 10.1515/tsd-1989-260610] [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: 11/15/2022]
|
6
|
Dörfler HD, Bergk KH, Müller K, Müller E. Adsorption von kationischen, anionischen und nichtionischen Tensiden an Na-, Ca- und H-Magadiült. TENSIDE SURFACT DET 2021. [DOI: 10.1515/tsd-1984-210503] [Citation(s) in RCA: 6] [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] [Indexed: 11/15/2022]
|
7
|
Dörfler HD, Müller E. Potential- und kettenlängenabhängige Umorientierungen in Adsorptionsschichten von Na-n-alkylsulfaten an der Grenzfläche Quecksilber/Elektrolyt. TENSIDE SURFACT DET 2021. [DOI: 10.1515/tsd-1976-130604] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
8
|
Bergk KH, Müller K, Müller E, Schwieger W, Dörfler HD. Adsorption von Tensiden an Zeolithen Teil 2. Adsorption von Natriumundecylsulfonat und Octaethylenglycoldodecylether an verschiedenen Zeolithtypen. TENSIDE SURFACT DET 2021. [DOI: 10.1515/tsd-1984-210303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
9
|
|
10
|
|
11
|
Müller E, Feltes W, Ragoß H, Teuchert E. Incore fuel management of the HTGR Module / Optimierung des Kerns für den HTR-Modul. KERNTECHNIK 2021. [DOI: 10.1515/kern-1988-520423] [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: 11/15/2022]
|
12
|
Schieder AK, Müller E, Heusinger A, Eule J. C.. Study on the current resistance of the ocular microflora of the horse – Suitable locally applicable antibiotics for the initial treatment
of conjunctivitis and keratitis in the horse. PFERDEHEILKUNDE 2021. [DOI: 10.21836/pem20210311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
13
|
Stamer UM, Stammschulte T, Erlenwein J, Koppert W, Freys S, Meißner W, Ahrens P, Brede EM, Lindig M, Dusch M, Heitfeld S, Hoffmann E, Lux EA, Müller E, Pauli-Magnus D, Pogatzki-Zahn E, Quaisser-Kimpfbeck C, Ringeler U, Rittner H, Ulma J, Wirz S. [Recommendations for the perioperative use of dipyrone : Expert recommendation of the working group on acute pain of the German Pain Society, the scientific working group on pain medicine of the German Society for Anesthesiology and Intensive Care Medicine and the surgical working group on acute pain of the German Society for Surgery with participation of representatives of the Drug Commission of the German Medical Association]. Anaesthesist 2020; 68:520-529. [PMID: 31396674 DOI: 10.1007/s00101-019-0622-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 11/30/2022]
Abstract
BACKGROUND Dipyrone (metamizole) is widely used for perioperative pain management in countries where it is marketed; however, uncertainty exists concerning the safe use of this drug, specifically considering the rare adverse event of an agranulocytosis. METHODS As evidence from published studies was lacking, an expert panel developed recommendations for the perioperative use of dipyrone. After a formal, structured consensus process, the recommendations were approved by the involved medical societies. RESULTS The panel agreed that blood cell counts shall not be standard for short-term perioperative use in patients unless they are at risk for neutropenia. The medical staff shall be aware of the symptoms and course of action when agranulocytosis is suspected. Patients shall be informed about the risks and benefits of dipyrone and about potential alternatives. The expert group concluded that dipyrone has a relatively positive risk-benefit ratio compared to other nonopioid analgesics. The group strongly recommended educating patients about the symptoms of agranulocytosis if they have received dipyrone over several days and/or treatment is to be continued after discharge, because agranulocytosis can occur several days after discontinuation of metamizole. Further recommendations refer to the information of the physician taking over the patient's care after discharge and the avoidance of re-exposure in patients having previously suffered from dipyrone-induced agranulocytosis. CONCLUSION The group's recommendations shall be communicated in order to raise medical staff's and patients' awareness of the appropriate use of dipyrone in the perioperative period.
Collapse
Affiliation(s)
- U M Stamer
- Klinik für Anästhesiologie und Schmerztherapie, Universitätsklinik Bern, Inselspital, Universität Bern, Freiburgstraße, 3010, Bern, Schweiz.
| | - T Stammschulte
- Arzneimittelkommission der deutschen Ärzteschaft, Berlin, Deutschland
| | - J Erlenwein
- Klinik für Anästhesiologie, GF Schmerzmedizin, Universitätsmedizin Göttingen, Göttingen, Deutschland
| | - W Koppert
- Klinik für Anästhesiologie und Intensivmedizin, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - S Freys
- Chirurgische Klinik, DIAKO Ev. Diakonie-Krankenhaus Bremen, Bremen, Deutschland
| | - W Meißner
- Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum Jena, Jena, Deutschland
| | - P Ahrens
- Abteilung Anästhesie und operative Intensivmedizin, Aller-Weser-Klinik, Verden, Deutschland
| | - E-M Brede
- Klinik und Poliklinik für Anästhesiologie, Zentrum Interdisziplinäre Schmerzmedizin, Universitätsklinikum Würzburg, Würzburg, Deutschland
| | - M Lindig
- Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Universität zu Lübeck, Lübeck, Deutschland
| | - M Dusch
- Klinik für Anästhesiologie und Intensivmedizin, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - S Heitfeld
- Klinik und Poliklinik für Anästhesiologie und Intensivtherapie, UniversitätsSchmerzCentrum Dresden, Dresden, Deutschland
| | - E Hoffmann
- Klinik für Anästhesie, operative Intensivmedizin, Notfall- und Schmerzmedizin, Evangelisches Krankenhaus Herne, Herne, Deutschland
| | - E A Lux
- Klinik für Schmerz- und Palliativmedizin, Katholisches Klinikum Lünen-Werne, Lünen, Deutschland
| | - E Müller
- Klinik für Anästhesiologie, Universitätsmedizin Greifswald, Greifswald, Deutschland
| | - D Pauli-Magnus
- Klinik für Anästhesie, Schmerztherapie, Intensiv- und Notfallmedizin, DRK Kliniken Berlin Westend, Berlin, Deutschland
| | - E Pogatzki-Zahn
- Klinik für Anästhesiologie, operative Intensivmedizin und Schmerztherapie, Universitätsklinikum Münster, Münster, Deutschland
| | - C Quaisser-Kimpfbeck
- Abteilung für Anästhesie und Schmerztherapie, Klinikum Freising, Freising, Deutschland
| | - U Ringeler
- Abteilung für Anästhesiologie, Palliativ‑, Intensiv- und Schmerzmedizin, Paracelsus-Klinik Golzheim, Düsseldorf, Deutschland
| | - H Rittner
- Arzneimittelkommission der deutschen Ärzteschaft, Berlin, Deutschland
- Klinik und Poliklinik für Anästhesiologie, Zentrum Interdisziplinäre Schmerzmedizin, Universitätsklinikum Würzburg, Würzburg, Deutschland
| | - J Ulma
- Klinik für Schmerzmedizin und Schmerzambulanz, Rotes Kreuz Krankenhaus Bremen, Bremen, Deutschland
| | - S Wirz
- Abteilung für Anästhesie, Interdisziplinäre Intensivmedizin, Schmerzmedizin/Palliativmedizin, Zentrum für Schmerzmedizin, Weaningzentrum, CURA-GFO Kliniken Bonn, Bad Honnef, Deutschland
| |
Collapse
|
14
|
Schmauss M, Müller E, Schwamborn M, Giesa C, Ewig S. [ECMO Therapy in a Case of Severe ARDS Related to COVID-19]. Pneumologie 2020; 74:423-428. [PMID: 32674191 DOI: 10.1055/a-1199-2167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
We report the case of a 60-year old female patient with advanced severe lung injury as a consequence of COVID-19-pneumonia. The patient was initially treated with highflow oxygen via nasal cannula (HFNC) and CPAP for two days but had to be intubated and mechanically ventilated. After failure of mechanical ventilation because of persistant severe hypoxemia treatment was switched to ECMO which was applicated for 24 days. Prognostic parameters indicated a favourable trend after day 14. After discontinuation of ECMO and 11 days of intermittent assisted ventilation via tracheostoma and low dose oxygen (1 l/min), the patient could be transferred to rehabilitation. The last chest radiograph prior to transferral revealed a nearly complete resolution of bilateral pulmonary infiltrates. Our case demonstrates that severe COVID-19-associated lung injury can be reversible even after prolonged ECMO.
Collapse
Affiliation(s)
- M Schmauss
- Klinik für Anästhesiologie, Intensiv-, Notfall- und Schmerzmedizin, EVK Herne, Herne
| | - E Müller
- Klinik für Anästhesiologie, Intensiv-, Notfall- und Schmerzmedizin, EVK Herne, Herne
| | - M Schwamborn
- Thoraxzentrum Ruhrgebiet, Klink für Innere Medizin, Pneumologie und Infektiologie, EVK Herne, Herne
| | - C Giesa
- Thoraxzentrum Ruhrgebiet, Klink für Innere Medizin, Pneumologie und Infektiologie, EVK Herne, Herne
| | - S Ewig
- Klinken für Innere Medizin, Pneumologie und Infektiologie, EVK Herne und Augusta-Kranken-Anstalt Bochum, Bochum
| |
Collapse
|
15
|
Senok A, Nassar R, Kaklamanos E, Belhoul K, Fanas SA, Nassar M, Azar A, Müller E, Reissig A, Gawlik D, Monecke S, Ehricht R. Genotyping Staphylococcus aureus isolates associated with nasal colonization and environmental contamination in academic dental clinics. J Infect Public Health 2020. [DOI: 10.1016/j.jiph.2020.01.135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
16
|
Senok A, Somily A, Nassar R, Garaween G, Sing GK, Müller E, Reissig A, Gawlik D, Ehricht R, Monecke S. Emergence of novel methicillin resistant Staphylococcus aureus strains in a tertiary care facility in Riyadh, Saudi Arabia. J Infect Public Health 2020. [DOI: 10.1016/j.jiph.2020.01.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
17
|
Winter JC, Müller E, Sponder G, Merle R, Aschenbach JR, Gehlen H. Relationship between intracellular free magnesium concentration and the degree of insulin resistance in horses with equine metabolic syndrome. PFERDEHEILKUNDE 2020. [DOI: 10.21836/pem20200406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
18
|
Aupperle-Lellbach H, Törner K, Staudacher M, Müller E, Steiger K, Klopfleisch R. Characterization of 22 Canine Pancreatic Carcinomas and Review of Literature. J Comp Pathol 2019; 173:71-82. [PMID: 31812175 DOI: 10.1016/j.jcpa.2019.10.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 08/30/2019] [Revised: 10/06/2019] [Accepted: 10/14/2019] [Indexed: 01/10/2023]
Abstract
Pancreatic carcinomas are rare in dogs and clinical signs are mostly non-specific. The literature on clinically and pathologically characterized canine exocrine pancreatic tumours is limited to 76 cases reported since 1963. This retrospective study analysed formalin-fixed samples of pancreatic carcinomas from 22 dogs, obtained during elective exploratory surgery (n = 16) or if the dog was humanely destroyed (n = 6). Tumours were diagnosed according to the World Health Organization classification of tumours of the pancreas of domestic animals. In seven cases, blood samples taken during or shortly before surgery were analysed for concentrations of alpha-amylase, 1,2-o-dilauryl-rac-glycero-3-glutaric acid-(6'-methylresorufin) ester lipase (DGGR lipase), C-reactive protein (CRP), alanine aminotransferase, glutamate dehydrogenase, alkaline phosphatase (ALP), canine trypsin-like immunoreactivity (cTLI) and canine pancreatic lipase immunoreactivity (cPLI). Neutrophil and lymphocyte numbers were determined as part of a complete blood count. Clinical signs were non-specific and included vomiting, inappetence and diarrhoea. Acinar carcinomas were most common (19/22) and observed growth patterns included: solid (n = 14), acinar (n = 5), clear cell (n = 3), mucinous (n = 2), trabecular (n = 1) or rosette-like (n = 1), occurring as a single pattern or in combination. Ductal carcinomas were identified in three cases. Pancreatitis was a common additional histological finding; five dogs had mild and nine dogs had severe pancreatitis. cPLI, DGGR lipase, cTLI and CRP were elevated in 5/5 acinar carcinomas. All liver enzymes were elevated in three of these five animals and ALP was increased in 4/5 dogs. Two dogs with ductal pancreatic carcinomas showed normal cPLI concentrations. One had increased CRP, liver enzymes and leucocytosis with neutrophilia, the other had elevated DGGR lipase and cTLI concentrations. Clinical findings in canine pancreatic carcinomas were non-specific and simultaneous inflammation can mask the detection of the underlying neoplasm in clinical examination and laboratory testing.
Collapse
Affiliation(s)
| | - K Törner
- Laboklin GmbH & Co. KG, Bad Kissingen, Germany
| | - M Staudacher
- AniCura Aachen, Dres. Staudacher, Aachen, Germany
| | - E Müller
- Laboklin GmbH & Co. KG, Bad Kissingen, Germany
| | - K Steiger
- Institute of Pathology, Technische Universität München, Germany
| | - R Klopfleisch
- Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| |
Collapse
|
19
|
Stamer UM, Stammschulte T, Erlenwein J, Koppert W, Freys S, Meißner W, Ahrens P, Brede EM, Lindig M, Dusch M, Heitfeld S, Hoffmann E, Lux EA, Müller E, Pauli-Magnus D, Pogatzki-Zahn E, Quaisser-Kimpfbeck C, Ringeler U, Rittner H, Ulma J, Wirz S. [Recommendations for the perioperative use of dipyrone : Expert recommendation of the working group on acute pain of the German Pain Society, the scientific working group on pain medicine of the German Society for Anesthesiology and Intensive Care Medicine and the surgical working group on acute pain of the German Society for Surgery with participation of representatives of the Drug Commission of the German Medical Association]. Chirurg 2019; 90:652-659. [PMID: 31359112 DOI: 10.1007/s00104-019-0993-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Dipyrone (metamizole) is widely used for perioperative pain management in countries where it is marketed; however, uncertainty exists concerning the safe use of this drug, specifically considering the rare adverse event of an agranulocytosis. METHODS As evidence from published studies was lacking, an expert panel developed recommendations for the perioperative use of dipyrone. After a formal, structured consensus process, the recommendations were approved by the involved medical societies. RESULTS The panel agreed that blood cell counts shall not be standard for short-term perioperative use in patients unless they are at risk for neutropenia. The medical staff shall be aware of the symptoms and course of action when agranulocytosis is suspected. Patients shall be informed about the risks and benefits of dipyrone and about potential alternatives. The expert group concluded that dipyrone has a relatively positive risk-benefit ratio compared to other nonopioid analgesics. The group strongly recommended educating patients about the symptoms of agranulocytosis if they have received dipyrone over several days and/or treatment is to be continued after discharge, because agranulocytosis can occur several days after discontinuation of metamizole. Further recommendations refer to the information of the physician taking over the patient's care after discharge and the avoidance of re-exposure in patients having previously suffered from dipyrone-induced agranulocytosis. CONCLUSION The group's recommendations shall be communicated in order to raise medical staff's and patients' awareness of the appropriate use of dipyrone in the perioperative period.
Collapse
Affiliation(s)
- U M Stamer
- Klinik für Anästhesiologie und Schmerztherapie, Universitätsklinik Bern, Inselspital, Universität Bern, Freiburgstraße, 3010, Bern, Schweiz.
| | - T Stammschulte
- Arzneimittelkommission der deutschen Ärzteschaft, Berlin, Deutschland
| | - J Erlenwein
- Klinik für Anästhesiologie, GF Schmerzmedizin, Universitätsmedizin Göttingen, Göttingen, Deutschland
| | - W Koppert
- Klinik für Anästhesiologie und Intensivmedizin, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - S Freys
- Chirurgische Klinik, DIAKO Ev. Diakonie-Krankenhaus Bremen, Bremen, Deutschland
| | - W Meißner
- Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum Jena, Jena, Deutschland
| | - P Ahrens
- Abteilung Anästhesie und operative Intensivmedizin, Aller-Weser-Klinik, Verden, Deutschland
| | - E-M Brede
- Klinik und Poliklinik für Anästhesiologie, Zentrum Interdisziplinäre Schmerzmedizin, Universitätsklinikum Würzburg, Würzburg, Deutschland
| | - M Lindig
- Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Universität zu Lübeck, Lübeck, Deutschland
| | - M Dusch
- Klinik für Anästhesiologie und Intensivmedizin, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - S Heitfeld
- Klinik und Poliklinik für Anästhesiologie und Intensivtherapie, UniversitätsSchmerzCentrum Dresden, Dresden, Deutschland
| | - E Hoffmann
- Klinik für Anästhesie, operative Intensivmedizin, Notfall- und Schmerzmedizin, Evangelisches Krankenhaus Herne, Herne, Deutschland
| | - E A Lux
- Klinik für Schmerz- und Palliativmedizin, Katholisches Klinikum Lünen-Werne, Lünen, Deutschland
| | - E Müller
- Klinik für Anästhesiologie, Universitätsmedizin Greifswald, Greifswald, Deutschland
| | - D Pauli-Magnus
- Klinik für Anästhesie, Schmerztherapie, Intensiv- und Notfallmedizin, DRK Kliniken Berlin Westend, Berlin, Deutschland
| | - E Pogatzki-Zahn
- Klinik für Anästhesiologie, operative Intensivmedizin und Schmerztherapie, Universitätsklinikum Münster, Münster, Deutschland
| | - C Quaisser-Kimpfbeck
- Abteilung für Anästhesie und Schmerztherapie, Klinikum Freising, Freising, Deutschland
| | - U Ringeler
- Abteilung für Anästhesiologie, Palliativ‑, Intensiv- und Schmerzmedizin, Paracelsus-Klinik Golzheim, Düsseldorf, Deutschland
| | - H Rittner
- Arzneimittelkommission der deutschen Ärzteschaft, Berlin, Deutschland.,Klinik und Poliklinik für Anästhesiologie, Zentrum Interdisziplinäre Schmerzmedizin, Universitätsklinikum Würzburg, Würzburg, Deutschland
| | - J Ulma
- Klinik für Schmerzmedizin und Schmerzambulanz, Rotes Kreuz Krankenhaus Bremen, Bremen, Deutschland
| | - S Wirz
- Abteilung für Anästhesie, Interdisziplinäre Intensivmedizin, Schmerzmedizin/Palliativmedizin, Zentrum für Schmerzmedizin, Weaningzentrum, CURA-GFO Kliniken Bonn, Bad Honnef, Deutschland
| |
Collapse
|
20
|
Čalkovský M, Müller E, Hugenschmidt M, Gerthsen D. Differential electron scattering cross-sections at low electron energies: The influence of screening parameter. Ultramicroscopy 2019; 207:112843. [PMID: 31546129 DOI: 10.1016/j.ultramic.2019.112843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/28/2019] [Accepted: 09/02/2019] [Indexed: 11/25/2022]
Abstract
For quantitative electron microscopy the comparison of measured and simulated data is essential. Monte Carlo (MC) simulations are well established to calculate the high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) intensities on a non-atomic scale. In this work we focus on the importance of the screening parameter in differential screened Rutherford cross-sections for MC simulations and on the contribution of the screening parameter to the atomic-number dependence of the HAADF-STEM intensity at electron energies ≤ 30 keV. Materials investigated were chosen to cover a wide range of atomic numbers Z to study the Z dependence of the screening parameter. Comparison of measured and simulated HAADF-STEM intensities with different screening parameters known from the literature were tested and failed to generally describe the experimental data. Hence, the screening parameter was adapted to obtain the best match between experimental and MC-simulated HAADF-STEM intensities. The Z dependence of the HAADF-STEM intensity was derived.
Collapse
Affiliation(s)
- M Čalkovský
- 3DMM2O - Cluster of Excellence (EXC-2082/1 - 390761711), Karlsruhe Institute of Technologie (KIT), 76131 Karlsruhe, Germany; Laboratory for Electron Microscopy, Karlsruhe Institute of Technology (KIT), Engesserst. 7, 76131 Karlsruhe, Germany.
| | - E Müller
- Laboratory for Electron Microscopy, Karlsruhe Institute of Technology (KIT), Engesserst. 7, 76131 Karlsruhe, Germany
| | - M Hugenschmidt
- 3DMM2O - Cluster of Excellence (EXC-2082/1 - 390761711), Karlsruhe Institute of Technologie (KIT), 76131 Karlsruhe, Germany; Laboratory for Electron Microscopy, Karlsruhe Institute of Technology (KIT), Engesserst. 7, 76131 Karlsruhe, Germany
| | - D Gerthsen
- 3DMM2O - Cluster of Excellence (EXC-2082/1 - 390761711), Karlsruhe Institute of Technologie (KIT), 76131 Karlsruhe, Germany; Laboratory for Electron Microscopy, Karlsruhe Institute of Technology (KIT), Engesserst. 7, 76131 Karlsruhe, Germany
| |
Collapse
|
21
|
Stamer UM, Stammschulte T, Erlenwein J, Koppert W, Freys S, Meißner W, Ahrens P, Brede EM, Lindig M, Dusch M, Heitfeld S, Hoffmann E, Lux EA, Müller E, Pauli-Magnus D, Pogatzki-Zahn E, Quaisser-Kimpfbeck C, Ringeler U, Rittner H, Ulma J, Wirz S. [Recommendations for the perioperative use of dipyrone : Expert recommendation of the working group on acute pain of the German Pain Society, the scientific working group on pain medicine of the German Society for Anesthesiology and Intensive Care Medicine and the surgical working group on acute pain of the German Society for Surgery with participation of representatives of the Drug Commission of the German Medical Association]. Schmerz 2019; 33:287-294. [PMID: 31342162 DOI: 10.1007/s00482-019-0389-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Dipyrone (metamizole) is widely used for perioperative pain management in countries where it is marketed; however, uncertainty exists concerning the safe use of this drug, specifically considering the rare adverse event of an agranulocytosis. METHODS As evidence from published studies was lacking, an expert panel developed recommendations for the perioperative use of dipyrone. After a formal, structured consensus process, the recommendations were approved by the involved medical societies. RESULTS The panel agreed that blood cell counts shall not be standard for short-term perioperative use in patients unless they are at risk for neutropenia. The medical staff shall be aware of the symptoms and course of action when agranulocytosis is suspected. Patients shall be informed about the risks and benefits of dipyrone and about potential alternatives. The expert group concluded that dipyrone has a relatively positive risk-benefit ratio compared to other nonopioid analgesics. The group strongly recommended educating patients about the symptoms of agranulocytosis if they have received dipyrone over several days and/or treatment is to be continued after discharge, because agranulocytosis can occur several days after discontinuation of metamizole. Further recommendations refer to the information of the physician taking over the patient's care after discharge and the avoidance of re-exposure in patients having previously suffered from dipyrone-induced agranulocytosis. CONCLUSION The group's recommendations shall be communicated in order to raise medical staff's and patients' awareness of the appropriate use of dipyrone in the perioperative period.
Collapse
Affiliation(s)
- U M Stamer
- Klinik für Anästhesiologie und Schmerztherapie, Universitätsklinik Bern, Inselspital, Universität Bern, Freiburgstraße, 3010, Bern, Schweiz.
| | - T Stammschulte
- Arzneimittelkommission der deutschen Ärzteschaft, Berlin, Deutschland
| | - J Erlenwein
- Klinik für Anästhesiologie, GF Schmerzmedizin, Universitätsmedizin Göttingen, Göttingen, Deutschland
| | - W Koppert
- Klinik für Anästhesiologie und Intensivmedizin, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - S Freys
- Chirurgische Klinik, DIAKO Ev. Diakonie-Krankenhaus Bremen, Bremen, Deutschland
| | - W Meißner
- Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum Jena, Jena, Deutschland
| | - P Ahrens
- Abteilung Anästhesie und operative Intensivmedizin, Aller-Weser-Klinik, Verden, Deutschland
| | - E-M Brede
- Klinik und Poliklinik für Anästhesiologie, Zentrum Interdisziplinäre Schmerzmedizin, Universitätsklinikum Würzburg, Würzburg, Deutschland
| | - M Lindig
- Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Universität zu Lübeck, Lübeck, Deutschland
| | - M Dusch
- Klinik für Anästhesiologie und Intensivmedizin, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - S Heitfeld
- Klinik und Poliklinik für Anästhesiologie und Intensivtherapie, UniversitätsSchmerzCentrum Dresden, Dresden, Deutschland
| | - E Hoffmann
- Klinik für Anästhesie, operative Intensivmedizin, Notfall- und Schmerzmedizin, Evangelisches Krankenhaus Herne, Herne, Deutschland
| | - E A Lux
- Klinik für Schmerz- und Palliativmedizin, Katholisches Klinikum Lünen-Werne, Lünen, Deutschland
| | - E Müller
- Klinik für Anästhesiologie, Universitätsmedizin Greifswald, Greifswald, Deutschland
| | - D Pauli-Magnus
- Klinik für Anästhesie, Schmerztherapie, Intensiv- und Notfallmedizin, DRK Kliniken Berlin Westend, Berlin, Deutschland
| | - E Pogatzki-Zahn
- Klinik für Anästhesiologie, operative Intensivmedizin und Schmerztherapie, Universitätsklinikum Münster, Münster, Deutschland
| | - C Quaisser-Kimpfbeck
- Abteilung für Anästhesie und Schmerztherapie, Klinikum Freising, Freising, Deutschland
| | - U Ringeler
- Abteilung für Anästhesiologie, Palliativ‑, Intensiv- und Schmerzmedizin, Paracelsus-Klinik Golzheim, Düsseldorf, Deutschland
| | - H Rittner
- Arzneimittelkommission der deutschen Ärzteschaft, Berlin, Deutschland
- Klinik und Poliklinik für Anästhesiologie, Zentrum Interdisziplinäre Schmerzmedizin, Universitätsklinikum Würzburg, Würzburg, Deutschland
| | - J Ulma
- Klinik für Schmerzmedizin und Schmerzambulanz, Rotes Kreuz Krankenhaus Bremen, Bremen, Deutschland
| | - S Wirz
- Abteilung für Anästhesie, Interdisziplinäre Intensivmedizin, Schmerzmedizin/Palliativmedizin, Zentrum für Schmerzmedizin, Weaningzentrum, CURA-GFO Kliniken Bonn, Bad Honnef, Deutschland
| |
Collapse
|
22
|
Hugenschmidt M, Müller E, Gerthsen D. Electron beam broadening in electron-transparent samples at low electron energies. J Microsc 2019; 274:150-157. [PMID: 31001840 DOI: 10.1111/jmi.12793] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/08/2019] [Accepted: 04/10/2019] [Indexed: 11/30/2022]
Abstract
Scanning transmission electron microscopy (STEM) at low primary electron energies has received increasing attention in recent years because knock-on damage can be avoided and high contrast for weakly scattering materials is obtained. However, the broadening of the electron beam in the sample is pronounced at low electron energies, which degrades resolution and limits the maximum specimen thickness. In this work, we have studied electron beam broadening in materials with atomic numbers Z between 10 and 32 (MgO, Si, SrTiO3 , Ge) and thicknesses up to 900 nm. Beam broadening is directly measured using a multisegmented STEM detector installed in a scanning electron microscope at electron energies between 15 and 30 keV. For experimental reasons, the electron beam diameter is defined to contain only 68% of the total intensity instead of the commonly used 90% of the total beam intensity. The measured beam diameters can be well described with calculated ones based on a recently published model by Gauvin and Rudinsky. Using the concept of anomalous diffusion the Hurst exponent H is introduced that varies between 0.5 and 1 for different scattering regimes depending on t/Λel with the specimen thickness t and the elastic mean free path length Λel . The calculations also depend on the fraction of the beam intensity that defines the electron beam diameter. A Hurst exponent H of 1 is characteristic for the ballistic scattering regime with t/Λel → 0 and can be excluded for the experimental conditions of our study with 6 ≦ t/Λel ≦ 30. We deduced H = 0.75 from measured beam diameters which is larger than H = 0.5 that is expected under diffusion conditions. The deviation towards larger H values can be rationalised by our definition of electron diameter that contains only 68% of the total beam intensity and requires therefore larger sample thicknesses before the diffusion regime is reached. Our results clearly deviate from previous analytical approaches to describe beam broadening (Goldstein et al., Reed, Williams et al., Kohl and Reimer). Measured beam diameters are compared with simulated ones, which are obtained by solving the electron transport equation. This approach is advantageous compared to the commonly used Monte Carlo simulations because it is an exact solution of the electron transport equation and requires less computer time. Simulated beam diameter agree well with the experimental data and yield H = 0.80. LAY DESCRIPTION: In scanning transmission electron microscopy (STEM), a focused electron beam is scanned over an electron-transparent sample and an image is formed by detecting the intensity of the transmitted electrons by a STEM detector. STEM resolution is ultimately limited by the electron beam diameter and can be better than 0.1 nm for the best microscopes. However, the electron-beam diameter increases with increasing specimen thickness because electrons are scattered by the interaction of the specimen material and electrons. Electron scattering leads to a change of the electron propagation direction and reduces focusing of the electron beam. The associated electron-beam broadening degrades the lateral resolution of STEM and generally limits the maximum specimen thickness that can be imaged with good resolution. STEM is up to now mainly performed at high electron energies of 80 keV and above. Lower electron energies are beneficial for the study of weakly scattering and radiation-sensitive materials but electron beam broadening becomes more pronounced with decreasing electron energies. Knowledge of beam broadening is therefore particularly important for the interpretation of STEM images that are taken with low-energy electrons. In this work we have studied electron-beam broadening in different materials with thicknesses up to 900 nm at low electron energies between 15 and 30 keV. Beam broadening is directly measured with a newly developed technique. We compare measured beam diameters with different models on beam broadening from literature and find that only a recently published model is well suited to describe the experimental results under our experimental conditions. In addition, beam broadening is simulated by modelling electron propagation in the specimen. The simulation results agree well with the measured beam diameters.
Collapse
Affiliation(s)
- M Hugenschmidt
- Laboratory for Electron Microscopy (LEM), Karlsruhe Institute of Technology (KIT), Engesserstr. 7, 76131, Karlsruhe, Baden-Württemberg, Germany
| | - E Müller
- Laboratory for Electron Microscopy (LEM), Karlsruhe Institute of Technology (KIT), Engesserstr. 7, 76131, Karlsruhe, Baden-Württemberg, Germany
| | - D Gerthsen
- Laboratory for Electron Microscopy (LEM), Karlsruhe Institute of Technology (KIT), Engesserstr. 7, 76131, Karlsruhe, Baden-Württemberg, Germany
| |
Collapse
|
23
|
Stöckle SD, Müller E, Winter JC, Sponder G, Aschenbach JR, Pieper L, Gehlen H. Dose-dependent effects of magnesium supplementation on serum and intracellular magnesium concentrations in healthy horses. PFERDEHEILKUNDE 2019. [DOI: 10.21836/pem20190605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
24
|
Hoffstadt K, Decker S, Dahmen M, Kuperjans I, Schwerdtfeger R, Haarmann T, Müller E, Siegert P. Effekte auf den Biogasprozess durch den Einsatz laccasebehandelter ligninhaltiger Abwässer. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Hoffstadt
- FH Aachen; NOWUM-Energy Institut; Heinrich-Mußmann-Straße 1 52428 Jülich Deutschland
| | - S. Decker
- FH Aachen; NOWUM-Energy Institut; Heinrich-Mußmann-Straße 1 52428 Jülich Deutschland
| | - M. Dahmen
- FH Aachen; NOWUM-Energy Institut; Heinrich-Mußmann-Straße 1 52428 Jülich Deutschland
| | - I. Kuperjans
- FH Aachen; NOWUM-Energy Institut; Heinrich-Mußmann-Straße 1 52428 Jülich Deutschland
| | | | - T. Haarmann
- AB Enzymes GmbH; Feldbergstraße 78 64293 Darmstadt Deutschland
| | - E. Müller
- AB Enzymes GmbH; Feldbergstraße 78 64293 Darmstadt Deutschland
| | - P. Siegert
- FH Aachen; Institut für Nano- und Biotechnologien; Heinrich-Mußmann-Straße 1 52428 Jülich Deutschland
| |
Collapse
|
25
|
Abstract
SummaryA marked fibrinolytic activity could be demonstrated in the blood of 10 patients with polycythaemia. In these cases fibrinolysis was considered the result of a deficiency an antiplasmin. It could be demonstrated that this naturally occurring inhibitor of fibrinolysis is present in normal platelets but is lacking in the patient’s own thrombocytes. This factor is probably attached to the surface of the thrombocytes. It could be removed by repeatedly washing. Lack of antiplasmin is a dysfunction of platelets and a form of thrombopathy. It does not respond on treatment with ACA or prednisone. In primary polycythaemia busulfan (Myleran) was considered to be the treatment of choice, whereas in 1 case of secundary erythrocytosis (Fallot’s tetralogy) the reaction on unroasted peanuts was unmistakable. In 4 more patients an alcoholic extract of peanuts was given, and promising results were obtained in 3 of them. The importance of this “thrombopathic type’ of fibrinolysis has been pointed out especially in view of surgical interventions.
Collapse
|
26
|
de Vries SI, van Creveld S, Groen P, Müller E, Wettermark M. Studies on the Coagulation of the Blood in Patients Treated with Extra-Corporeal Circulation. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1654936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Conclusions and summaryAn extensive investigation of the coagulation mechanism was performed in 21 patients suffering from a congenital heart failure and exposed to surgical treatment with the aid of extra-corporeal circulation. The results have been discussed and suggestions given for the preoperative and postoperative mode of investigation in future. Only three factors may be considered a possible contraindication for the operation, namely1. a persistent and marked thrombocytopenia,2. fibrinogenopenia and3. a high degree of fibrinolysis.Before a final decision to operate is taken an attempt should be made to restore the impaired coagulation mechanism. The necessity of a preoperative analysis and a close cooperation between the surgeon and the coagulationist before, during and after the operation have been stressed.
Collapse
|
27
|
Rapp M, Lein V, Lacoudre F, Lafferty J, Müller E, Vida G, Bozhanova V, Ibraliu A, Thorwarth P, Piepho HP, Leiser WL, Würschum T, Longin CFH. Simultaneous improvement of grain yield and protein content in durum wheat by different phenotypic indices and genomic selection. Theor Appl Genet 2018; 131:1315-1329. [PMID: 29511784 DOI: 10.1007/s00122-018-3080-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 02/24/2018] [Indexed: 05/19/2023]
Abstract
Simultaneous improvement of protein content and grain yield by index selection is possible but its efficiency largely depends on the weighting of the single traits. The genetic architecture of these indices is similar to that of the primary traits. Grain yield and protein content are of major importance in durum wheat breeding, but their negative correlation has hampered their simultaneous improvement. To account for this in wheat breeding, the grain protein deviation (GPD) and the protein yield were proposed as targets for selection. The aim of this work was to investigate the potential of different indices to simultaneously improve grain yield and protein content in durum wheat and to evaluate their genetic architecture towards genomics-assisted breeding. To this end, we investigated two different durum wheat panels comprising 159 and 189 genotypes, which were tested in multiple field locations across Europe and genotyped by a genotyping-by-sequencing approach. The phenotypic analyses revealed significant genetic variances for all traits and heritabilities of the phenotypic indices that were in a similar range as those of grain yield and protein content. The GPD showed a high and positive correlation with protein content, whereas protein yield was highly and positively correlated with grain yield. Thus, selecting for a high GPD would mainly increase the protein content whereas a selection based on protein yield would mainly improve grain yield, but a combination of both indices allows to balance this selection. The genome-wide association mapping revealed a complex genetic architecture for all traits with most QTL having small effects and being detected only in one germplasm set, thus limiting the potential of marker-assisted selection for trait improvement. By contrast, genome-wide prediction appeared promising but its performance strongly depends on the relatedness between training and prediction sets.
Collapse
Affiliation(s)
- M Rapp
- State Plant Breeding Institute, University of Hohenheim, 70599, Stuttgart, Germany
| | | | - F Lacoudre
- Limagrain Europe, 11492, Castelnaudary Cedex, France
| | - J Lafferty
- Saatzucht Donau, 2301, Probstdorf, Austria
| | - E Müller
- Südwestdeutsche Saatzucht GmbH & Co. KG, Im Rheinfeld 1-13, 76437, Rastatt, Germany
| | - G Vida
- Centre for Agricultural Research, Hungarian Academy of Sciences, 2462, Martonvásár, Hungary
| | - V Bozhanova
- Field Crops Institute, 6200, Chirpan, Bulgaria
| | - A Ibraliu
- Department of Plant Science and Technology, Agricultural University of Tirana, 1029, Tirana, Albania
| | - P Thorwarth
- State Plant Breeding Institute, University of Hohenheim, 70599, Stuttgart, Germany
| | - H P Piepho
- Biostatistics Unit, University of Hohenheim, 70593, Stuttgart, Germany
| | - W L Leiser
- State Plant Breeding Institute, University of Hohenheim, 70599, Stuttgart, Germany
| | - T Würschum
- State Plant Breeding Institute, University of Hohenheim, 70599, Stuttgart, Germany
| | - C F H Longin
- State Plant Breeding Institute, University of Hohenheim, 70599, Stuttgart, Germany.
| |
Collapse
|
28
|
Affiliation(s)
- E. Müller
- Department of Anesthesiology and Intensive Care Therapy, Hospital of the Philipps - University, Intensive Care Unit 3, Marburg/Lahn - Germany
| |
Collapse
|
29
|
Knoch M, Köllen B, Dietrich G, Müller E, Mottaghy K, Lennartz H. Progress in Veno-Venous Long-Term Bypass Techniques for the Treatment of Ards. Int J Artif Organs 2018. [DOI: 10.1177/039139889201500208] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Extracorporeal CO2 removal combined with low-frequency positive pressure ventilation (ECCO2-R LFPPV) is a new therapeutic approach in treatment of ARDS. The main problem during long-term extracorporeal support is anticoagulation and related bleeding problems. We conducted a prospective, randomized and controlled clinical trial in 18 patients to compare the effect of the non-heparin-coated (Scimed = group 1) with the heparin-coated (Carmeda = group 2) extracorporeal circuit on clinical course and complication rate. In group 2 the daily blood loss, the amount of substituted red cells and the i.v. heparin dose were significantly lower than in group 1. Bleeding complications were less and more patients survived in group 2. The disadvantage of the hollow fiber oxygenators in the heparin-coated system was plasma leakage, which was more frequent in patients with pancreatitis and hyperbilirubinemia.
Collapse
Affiliation(s)
- M. Knoch
- Department of Anesthesiology and Intensive Care, University, Marburg
| | - B. Köllen
- Department of Anesthesiology and Intensive Care, University, Marburg
| | - G. Dietrich
- Department of Transfusion Medicine and Coagulation Physiology, University, Marburg
| | - E. Müller
- Department of Anesthesiology and Intensive Care, University, Marburg
| | - K. Mottaghy
- Department of Physiology, University, Aachen - Germany
| | - H. Lennartz
- Department of Anesthesiology and Intensive Care, University, Marburg
| |
Collapse
|
30
|
Leitl D, Glöckl R, Schneeberger T, Müller E, Koczulla AR, Kenn K. Effekte eines Laufband- versus Fahrradtrainings auf die Gangqualität und Leistungsfähigkeit bei Patienten mit schwerer COPD – Eine Pilotstudie. Pneumologie 2018. [DOI: 10.1055/s-0037-1619404] [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)
- D Leitl
- Schön Klinik Berchtesgadener Land; Paris Lodron Universität Salzburg
| | - R Glöckl
- Schön Klinik Berchtesgadener Land; Technische Universität München (TUM)
| | - T Schneeberger
- Schön Klinik Berchtesgadener Land; Philipps Universität Marburg
| | - E Müller
- Paris Lodron Universität Salzburg
| | - AR Koczulla
- Schön Klinik Berchtesgadener Land; Philipps Universität Marburg
| | - K Kenn
- Schön Klinik Berchtesgadener Land; Philipps Universität Marburg
| |
Collapse
|
31
|
Herrmann J, Vogel M, Pietzner D, Kroll E, Wagner O, Schwarz S, Müller E, Kiess W, Richter M, Poulain T. Factors associated with the emotional health of children: high family income as a protective factor. Eur Child Adolesc Psychiatry 2018; 27:319-328. [PMID: 28942492 DOI: 10.1007/s00787-017-1049-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 09/13/2017] [Indexed: 10/18/2022]
Abstract
Anxiety and depressive symptoms have adverse effects on children's development. The present study investigates the associations of socioeconomic factors as well as maternal emotional health with children's emotional health status. The data were collected between 2011 and 2015 in the LIFE Child study, a population-based cohort study in Leipzig, Germany. The emotional health status of 1093 children (2.5-11.9 years old) was investigated using the subscale 'emotional problems' of the Strengths and Difficulties Questionnaire. Associations of maternal emotional health, family status, and socioeconomic status (SES) with the emotional health status of children were estimated via regression analyses. 21.13% of the participating children were assigned to the 'risk' group for emotional problems. The results furthermore revealed that children of mothers reporting more depressive symptoms, children living in single-parent families, and children of families with lower SES scored higher in the emotional problems scale. When considering the different indicators of SES (parental education, occupational status, and monthly net income) separately, only income showed significant associations with children's emotional health status. The prevalence of emotional problems in children in Leipzig, a city in East Germany, appears to be higher than the previously reported German average. Maternal depressive symptoms, single-parent families, lower SES, and especially lower income can be seen as risk factors for children's emotional health.
Collapse
Affiliation(s)
- Janine Herrmann
- Department of Women and Children's Health, Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Liebigstrasse 20a, 04103, Leipzig, Germany. .,LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Philipp-Rosenthal-Strasse 27, 04103, Leipzig, Germany.
| | - M Vogel
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Philipp-Rosenthal-Strasse 27, 04103, Leipzig, Germany
| | - D Pietzner
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Philipp-Rosenthal-Strasse 27, 04103, Leipzig, Germany
| | - E Kroll
- Berlin Social Science Center, PhD College 'Good Work', Reichpietschufer 50, 10785, Berlin, Germany
| | - O Wagner
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Philipp-Rosenthal-Strasse 27, 04103, Leipzig, Germany
| | - S Schwarz
- Department of Women and Children's Health, Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Liebigstrasse 20a, 04103, Leipzig, Germany.,LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Philipp-Rosenthal-Strasse 27, 04103, Leipzig, Germany
| | - E Müller
- Department of Women and Children's Health, Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Liebigstrasse 20a, 04103, Leipzig, Germany.,LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Philipp-Rosenthal-Strasse 27, 04103, Leipzig, Germany
| | - W Kiess
- Department of Women and Children's Health, Hospital for Children and Adolescents and Center for Pediatric Research (CPL), University of Leipzig, Liebigstrasse 20a, 04103, Leipzig, Germany.,LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Philipp-Rosenthal-Strasse 27, 04103, Leipzig, Germany
| | - M Richter
- Medical Faculty, Institute of Medical Sociology (IMS), Martin-Luther-University Halle-Wittenberg, Magdeburger Strasse 8, 06112, Halle (Saale), Germany
| | - T Poulain
- LIFE Leipzig Research Center for Civilization Diseases, University of Leipzig, Philipp-Rosenthal-Strasse 27, 04103, Leipzig, Germany
| |
Collapse
|
32
|
Affiliation(s)
- E. Müller
- Department of Anesthesiology, Heinrich, Heine - Universitat Düsseldorf - Germany
| |
Collapse
|
33
|
Müller E, Diesing A, Härter M, Scholl I, Buchholz A. Wirksamkeit eines Trainings in patientenzentrierter Kommunikation und partizipativer Entscheidungsfindung für pneumologisch tätige Ärzte. Pneumologie 2018. [DOI: 10.1055/s-0037-1619414] [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)
- E Müller
- Institut und Poliklinik für Medizinische Psychologie, Universitätsklinikum Hamburg-Eppendorf
| | - A Diesing
- Institut und Poliklinik für Medizinische Psychologie, Universitätsklinikum Hamburg-Eppendorf
| | - M Härter
- Institut und Poliklinik für Medizinische Psychologie, Universitätsklinikum Hamburg-Eppendorf
| | - I Scholl
- Institut und Poliklinik für Medizinische Psychologie, Universitätsklinikum Hamburg-Eppendorf
| | - A Buchholz
- Institut und Poliklinik für Medizinische Psychologie, Universitätsklinikum Hamburg-Eppendorf
| |
Collapse
|
34
|
Drees H, Müller E, Dries M, Gerthsen D. Electron-beam broadening in amorphous carbon films in low-energy scanning transmission electron microscopy. Ultramicroscopy 2018; 185:65-71. [DOI: 10.1016/j.ultramic.2017.11.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 10/30/2017] [Accepted: 11/13/2017] [Indexed: 11/24/2022]
|
35
|
Wall K, Müller E, Roder A, Staufenbiel R, Pieper L. Untersuchungen zur Schwefelversorgung von Milchkühen in Deutschland. Tierarztl Prax Ausg G Grosstiere Nutztiere 2017; 44:92-8. [DOI: 10.15653/tpg-150901] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 01/26/2016] [Indexed: 11/22/2022]
Abstract
Zusammenfassung
Gegenstand: Schwefelüber- und -unterversorgung kann bei Nutztieren zu Leistungsminderung und Erkrankungen führen. Über die Dia - gnostik der Schwefelversorgung in Milchviehherden ist allerdings wenig bekannt. Ziele der Studie waren, die alimentäre Schwefelversorgung deutscher Milchviehherden darzustellen, den Zusammenhang zwischen der Schwefelversorgung und Gesundheit und Leistung zu beurteilen, geeignete Probenmedien für die klinisch-chemische Labordia - gnostik zu bestimmen und Referenzwerte zur Beurteilung der Schwe - felversorgung in verschiedenen Untersuchungsmedien vorzuschlagen. Material und Methoden: Zwischen 2006 und 2014 wurden 569 Milchviehbetriebe beprobt. Von je 10 Tieren der Gruppen –3 bis 0, 0–1, 3–5 und 15–18 Wochen post partum (p. p.) (Betriebe > 200 Tiere) bzw. –3 bis 0, 0–5 und 6–20 Wochen p. p. (Betriebe ≤ 200 Tiere) wurden Blut-, Harn- und Haarproben gewonnen. Gepoolte Vollblut-, Serum-, Plasma-, Harn- und Haarproben (n = 5663) wurden mittels ICP-OESMethode analysiert. Die Schwefelkonzentration der Totalen Mischra - tion (TMR) der Vorbereiter (–3 bis 0 Wochen ante partum) wurden in einem zertifizierten Futtermittellabor bestimmt (n = 625). Ergebnisse: Die mediane Schwefelkonzentration in den Futterrationen betrug 2,3 g/kg TM. Schwefelunterversorgung (< 1,6 g/kg TM; 31% der Betriebe) und -überversorgung (> 4,0 g/kg TM; 11% der Betriebe) in den Futterrationen traten regelmäßig auf. Schwefelunterversorgung war mit verringerter Milchleistung (p < 0,001), Retentio secundinarum (OR = 1,74; p = 0,037), Gebärparese (OR = 2,68; p < 0,001) und Stillbrunst (OR = 2,56; p = 0,014) assoziiert. Positive Korrelationen fanden sich zwischen der Schwefelkonzentration in der TMR und den Schwefelkonzentrationen in Harn (r = 0,50), Serum (r = 0,17), Plasma (r = 0,18) und Vollblut (r = 0,16). Schlussfolgerung und klinische Relevanz: Die Diagnostik der Schwefelversorgung ist für praktische Tierärzte relevant und kann mittels TMR-Analyse und klinisch-chemischer Laborparameter erfolgen. Harn ist dabei als kurzfristiger, Serum, Plasma und Vollblut als mittelfristige und Haar als langfristiger Parameter für die Einschätzung der Schwefelversorgung zu werten.
Collapse
|
36
|
Bismarck D, Dusold A, Müller E. In vitro antimicrobial activity of essential oils against Malassezia pachydermatis isolated from canine ear swabs. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608292] [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)
- D Bismarck
- Laboklin GmbH & Co. KG, Bad Kissingen, Germany
| | - A Dusold
- Hochschule für angewandte Wissenschaften Coburg, Coburg, Germany
| | - E Müller
- Laboklin GmbH & Co. KG, Bad Kissingen, Germany
| |
Collapse
|
37
|
|
38
|
Zhang Y, Li XS, Guex AG, Liu SS, Müller E, Malini RI, Zhao HJ, Rottmar M, Maniura-Weber K, Rossi RM, Spano F. Corrigendum: A compliant and biomimetic three-layered vascular graft for small blood vessels (2017
Biofabrication
9
025010). Biofabrication 2017. [DOI: 10.1088/1758-5090/aa730a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
39
|
Zhang Y, Li XS, Guex AG, Liu SS, Müller E, Malini RI, Zhao HJ, Rottmar M, Maniura-Weber K, Rossi RM, Spano F. A compliant and biomimetic three-layered vascular graft for small blood vessels. Biofabrication 2017; 9:025010. [PMID: 28382923 DOI: 10.1088/1758-5090/aa6bae] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Engineering a small diameter vascular graft with mechanical and biological properties comparable to living tissues remains challenging. Often, current devices lead to thrombosis and unsatisfactory long-term patency as a result of poor blood compatibility and a mismatch between the mechanical properties of the living tissue and the implanted biomaterial. Addressing all these requirements is essential to produce scaffolds able to survive throughout the life of the patient. For this purpose, we fabricated a novel three-layered vascular graft by combining electrospinning and braiding. Mirroring the structure of human blood vessels, the proposed device is composed of three layers: the intima, the media, and the adventitia. The intima and media layers were obtained by sequentially electrospinning silk fibroin (SF) and poly(L-lactide-co-ε-caprolactone), with ratios selected to match the mechanical properties of the native tissue. For the outer layer, the adventitia, SF yarns were braided on top of the electrospun tubes to create a structure able to withstand high pressures. Compliance, Young's modulus and deformability of the obtained scaffold were similar to that of human blood vessels. Additionally, cytocompatibility of the two layers, media and intima, was assessed in vitro by analysing cell metabolic activity and proliferation of endothelial cells and smooth muscle cells, respectively. Furthermore, heparin functionalization of the scaffolds led to improved anticoagulant properties upon incubation in whole blood. The obtained results indicate a potential application of the herewith designed three-layered construct as a vascular graft for small diameter blood vessel engineering.
Collapse
Affiliation(s)
- Y Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, No. 199 Ren'ai Road, Industrial Park, Suzhou 215123, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Wessler GR, Schwartz P, Linde H, Müller E, Dörfler HD. Elektrochemische Oszillation mit und ohne hydrodynamische dissipative Strukturen. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1986-267120] [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: 11/15/2022]
|
41
|
Dörfler HD, Müller E, Heinze M. Substituenteneinfluß auf die Mizelladsorption von Tri-alkylphosphinoxiden untersucht mittels Elektrokapillarität. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1980-261115] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
42
|
Müller E, Ritschel H, Hänsel H. Messung der Thermospannung in der (100)-Fläche von As- und P-TCNQ-Einkristallen mittels einer Sondenmethode. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1972-25119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
43
|
Müller E, Gerthsen D. Composition quantification of electron-transparent samples by backscattered electron imaging in scanning electron microscopy. Ultramicroscopy 2016; 173:71-75. [PMID: 27940341 DOI: 10.1016/j.ultramic.2016.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 11/23/2016] [Accepted: 12/02/2016] [Indexed: 11/29/2022]
Abstract
The contrast of backscattered electron (BSE) images in scanning electron microscopy (SEM) depends on material parameters which can be exploited for composition quantification if some information on the material system is available. As an example, the In-concentration in thin InxGa1-xAs layers embedded in a GaAs matrix is analyzed in this work. The spatial resolution of the technique is improved by using thin electron-transparent specimens instead of bulk samples. Although the BSEs are detected in a comparably small angular range by an annular semiconductor detector, the image intensity can be evaluated to determine the composition and local thickness of the specimen. The measured intensities are calibrated within one single image to eliminate the influence of the detection and amplification system. Quantification is performed by comparison of experimental and calculated data. Instead of using time-consuming Monte-Carlo simulations, an analytical model is applied for BSE-intensity calculations which considers single electron scattering and electron diffusion.
Collapse
Affiliation(s)
- E Müller
- Laboratory for Electron Microscopy, Karlsruhe Institute of Technology (KIT), Engesserstr. 7, 76131 Karlsruhe, Germany.
| | - D Gerthsen
- Laboratory for Electron Microscopy, Karlsruhe Institute of Technology (KIT), Engesserstr. 7, 76131 Karlsruhe, Germany
| |
Collapse
|
44
|
Morbach S, Müller E, Reike H, Risse A, Rümenapf G, Spraul M. Diabetisches Fußsyndrom. DIABETOL STOFFWECHS 2016. [DOI: 10.1055/s-0042-115201] [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)
- S. Morbach
- Marienkrankenhaus gGmbH, Abteilung für Diabetologie und Angiologie, Soest
| | - E. Müller
- Schwerpunktpraxis für Diabetologie und Nephrologie, KfH Nierenzentrum, Bernkastel-Kues
| | - H. Reike
- Innere Abteilung, Mariannen-Hospital Werl
| | - A. Risse
- Diabetologie, Medizinische Klinik Nord, Dortmund
| | - G. Rümenapf
- Oberrheinisches Gefäßzentrum, Klinik für Gefäßchirurgie, Diakonissen-Stiftungs-Krankenhaus, Speyer
| | - M. Spraul
- Diabetes-Zentrum Rheine, Medizinische Klinik III (Mathias-Spital und Jakobi-Krankenhaus), Rheine
| |
Collapse
|
45
|
Schmidt G, Juhasz-Böss I, Gerlinger C, Rody A, Liedtke C, Stickeler E, Wimberger P, Fehm T, Müller E, Bohle R, Stein S, Solomayer EF. Her2-neu score as a prognostic factor for outcome in patients with triple-negative breast cancer. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1592807] [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] Open
|
46
|
Müller E, Bauer S, Stühmer T, Mottok A, Scholz CJ, Steinbrunn T, Brünnert D, Brandl A, Schraud H, Kreßmann S, Beilhack A, Rosenwald A, Bargou RC, Chatterjee M. Pan-Raf co-operates with PI3K-dependent signalling and critically contributes to myeloma cell survival independently of mutated RAS. Leukemia 2016; 31:922-933. [DOI: 10.1038/leu.2016.264] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 07/28/2016] [Accepted: 09/01/2016] [Indexed: 12/20/2022]
|
47
|
Koitzsch A, Habenicht C, Müller E, Knupfer M, Büchner B, Kandpal HC, van den Brink J, Nowak D, Isaeva A, Doert T. J_{eff} Description of the Honeycomb Mott Insulator α-RuCl_{3}. Phys Rev Lett 2016; 117:126403. [PMID: 27689287 DOI: 10.1103/physrevlett.117.126403] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Indexed: 06/06/2023]
Abstract
Novel ground states might be realized in honeycomb lattices with strong spin-orbit coupling. Here we study the electronic structure of α-RuCl_{3}, in which the Ru ions are in a d^{5} configuration and form a honeycomb lattice, by angle-resolved photoemission, x-ray photoemission, and electron energy loss spectroscopy supported by density functional theory and multiplet calculations. We find that α-RuCl_{3} is a Mott insulator with significant spin-orbit coupling, whose low energy electronic structure is naturally mapped onto J_{eff} states. This makes α-RuCl_{3} a promising candidate for the realization of Kitaev physics. Relevant electronic parameters such as the Hubbard energy U, the crystal field splitting 10 Dq, and the charge transfer energy Δ are evaluated.
Collapse
Affiliation(s)
- A Koitzsch
- IFW-Dresden, P.O.Box 270116, D-01171 Dresden, Germany
| | - C Habenicht
- IFW-Dresden, P.O.Box 270116, D-01171 Dresden, Germany
| | - E Müller
- IFW-Dresden, P.O.Box 270116, D-01171 Dresden, Germany
| | - M Knupfer
- IFW-Dresden, P.O.Box 270116, D-01171 Dresden, Germany
| | - B Büchner
- IFW-Dresden, P.O.Box 270116, D-01171 Dresden, Germany
- Institute for Solid State Physics, TU Dresden, D-01062 Dresden, Germany
| | - H C Kandpal
- IFW-Dresden, P.O.Box 270116, D-01171 Dresden, Germany
- Indian Institute of Technology, Department of Chemistry, Roorkee 247 667, India
| | - J van den Brink
- IFW-Dresden, P.O.Box 270116, D-01171 Dresden, Germany
- Institute for Theoretical Physics, TU Dresden, D-01062 Dresden, Germany
| | - D Nowak
- Department of Chemistry and Food Chemistry, TU Dresden, D-01062 Dresden, Germany
| | - A Isaeva
- Department of Chemistry and Food Chemistry, TU Dresden, D-01062 Dresden, Germany
| | - Th Doert
- Department of Chemistry and Food Chemistry, TU Dresden, D-01062 Dresden, Germany
| |
Collapse
|
48
|
Murgiano L, Waluk D, Towers R, Wiedemar N, Dietrich J, Jagannathan V, Drögemüller M, Druet T, Galichet A, Penedo MC, Müller E, Roosje P, Welle M, Leeb T. P6015 An intronic MBTPS2 variant results in a splicing defect in horses with brindle coat texture. J Anim Sci 2016. [DOI: 10.2527/jas2016.94supplement4155a] [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
|
49
|
Madzgalla S, Syed MA, Khan MA, Rehman SS, Müller E, Reissig A, Ehricht R, Monecke S. Molecular characterization of Staphylococcus aureus isolates causing skin and soft tissue infections in patients from Malakand, Pakistan. Eur J Clin Microbiol Infect Dis 2016; 35:1541-7. [PMID: 27262852 DOI: 10.1007/s10096-016-2695-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 05/24/2016] [Indexed: 11/24/2022]
Abstract
Comparatively few studies have been published describing Staphylococcus aureus/MRSA epidemiology in Central Asia including Pakistan. Here, we report the genotyping of Staphylococcus aureus strains (that include both methicillin-susceptible and methicillin-resistant Staphylococcus aureus) from community- and hospital-acquired skin and soft-tissue infections in a tertiary care hospital in the Malakand district of the Khyber Pakhtunkhwa Province of Pakistan. Forty-five isolates of Staphylococcus aureus were characterized by microarray hybridization. Twenty isolates (44 %) were MRSA, whereas 22 (49 %) were PVL-positive. Fourteen isolates (31 %) harboured both mecA and PVL genes. The dominant clones were CC121-MSSA (n = 15, 33 %) and the PVL-positive "Bengal Bay Clone" (ST772-MRSA-V; n = 13, 29 %). The PVL-positive CC8-MRSA-IV strain "USA300" was found once. The pandemic ST239-MRSA-III strain was absent, although it has previously been observed in Pakistan. These observations require a re-assessment of schemes for initial antibiotic therapy to cover MRSA and they emphasise the need for a rapid and non-molecular test for PVL.
Collapse
Affiliation(s)
- S Madzgalla
- Alere Technologies GmbH, Jena, Germany.,InfectoGnostics Research Campus, Jena, Germany
| | - M A Syed
- Infectious Diseases Research Group, Department of Microbiology, University of Haripur, Haripur, Pakistan
| | - M A Khan
- Infectious Diseases Research Group, Department of Microbiology, University of Haripur, Haripur, Pakistan
| | - S S Rehman
- Infectious Diseases Research Group, Department of Microbiology, University of Haripur, Haripur, Pakistan
| | - E Müller
- Alere Technologies GmbH, Jena, Germany.,InfectoGnostics Research Campus, Jena, Germany
| | - A Reissig
- Alere Technologies GmbH, Jena, Germany.,InfectoGnostics Research Campus, Jena, Germany
| | - R Ehricht
- Alere Technologies GmbH, Jena, Germany.,InfectoGnostics Research Campus, Jena, Germany
| | - S Monecke
- Alere Technologies GmbH, Jena, Germany. .,Institute for Medical Microbiology and Hygiene, Technische Universität Dresden, Dresden, Germany. .,InfectoGnostics Research Campus, Jena, Germany.
| |
Collapse
|
50
|
|