@article{BlaettnerDasPaprotkaetal.2016, author = {Bl{\"a}ttner, Sebastian and Das, Sudip and Paprotka, Kerstin and Eilers, Ursula and Krischke, Markus and Kretschmer, Dorothee and Remmele, Christian W. and Dittrich, Marcus and M{\"u}ller, Tobias and Schuelein-Voelk, Christina and Hertlein, Tobias and Mueller, Martin J. and Huettel, Bruno and Reinhardt, Richard and Ohlsen, Knut and Rudel, Thomas and Fraunholz, Martin J.}, title = {Staphylococcus aureus Exploits a Non-ribosomal Cyclic Dipeptide to Modulate Survival within Epithelial Cells and Phagocytes}, series = {PLoS Pathogens}, volume = {12}, journal = {PLoS Pathogens}, number = {9}, doi = {10.1371/journal.ppat.1005857}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-180380}, year = {2016}, abstract = {Community-acquired (CA) Staphylococcus aureus cause various diseases even in healthy individuals. Enhanced virulence of CA-strains is partly attributed to increased production of toxins such as phenol-soluble modulins (PSM). The pathogen is internalized efficiently by mammalian host cells and intracellular S. aureus has recently been shown to contribute to disease. Upon internalization, cytotoxic S. aureus strains can disrupt phagosomal membranes and kill host cells in a PSM-dependent manner. However, PSM are not sufficient for these processes. Here we screened for factors required for intracellular S. aureus virulence. We infected escape reporter host cells with strains from an established transposon mutant library and detected phagosomal escape rates using automated microscopy. We thereby, among other factors, identified a non-ribosomal peptide synthetase (NRPS) to be required for efficient phagosomal escape and intracellular survival of S. aureus as well as induction of host cell death. By genetic complementation as well as supplementation with the synthetic NRPS product, the cyclic dipeptide phevalin, wild-type phenotypes were restored. We further demonstrate that the NRPS is contributing to virulence in a mouse pneumonia model. Together, our data illustrate a hitherto unrecognized function of the S. aureus NRPS and its dipeptide product during S. aureus infection.}, language = {en} } @article{MuellerThomasRudeliusRondaketal.2014, author = {M{\"u}ller-Thomas, Catharina and Rudelius, Martina and Rondak, Ina-Christine and Haferlach, Torsten and Schanz, Julie and Huberle, Christina and Schmidt, Burkard and Blaser, Rainer and Kremer, Marcus and Peschel, Christian and Germing, Ulrich and Platzbecker, Uwe and Goetze, Katharina}, title = {Response to azacitidine is independent of p53 expression in higher-risk myelodysplastic syndromes and secondary acute myeloid leukemia}, series = {HAEMATOLOGICA}, volume = {99}, journal = {HAEMATOLOGICA}, number = {10}, issn = {1592-8721}, doi = {10.3324/haematol.2014.104760}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-115313}, pages = {E179-E181}, year = {2014}, abstract = {No abstract available.}, language = {en} } @article{TemmeAdamAhnenetal.2017, author = {Temme, Fabian and Adam, Jan and Ahnen, Max L. and Baack, Dominik and Balbo, Matteo and Bergmann, Matthias and Biland, Adrian and Blank, Michael and Bretz, Thomas and Br{\"u}gge, Kai A. and Buss, Jens and Dmytriiev, Anton and Dorner, Daniela and Einecke, Sabrina and Hempfling, Christina and Hildebrand, Dorothee and Hughes, Gareth and Linhoff, Lena and Mannheim, Karl and M{\"u}ller, Sebastian and Neise, Dominik and Neronov, Andrii and N{\"o}the, Max and Paravac, Aleksander and Pauss, Felicitas and Rhode, Wolfgang and Shukla, Amit and Thaele, Julia and Walter, Roland}, title = {Long-Term monitoring of bright blazars in the multi-GeV to TeV range with FACT}, series = {Galaxies}, volume = {5}, journal = {Galaxies}, number = {1}, publisher = {MDPI}, issn = {2075-4434}, doi = {10.3390/galaxies5010018}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-198088}, pages = {18}, year = {2017}, abstract = {Blazars like Markarian 421 or Markarian 501 are active galactic nuclei (AGN), with their jets orientated towards the observer. They are among the brightest objects in the very high energy (VHE) gamma ray regime (>100 GeV). Their emitted gamma-ray fluxes are extremely variable, with changing activity levels on timescales between minutes, months, and even years. Several questions are part of the current research, such as the question of the emission regions or the engine of the AGN and the particle acceleration. A dedicated longterm monitoring program is necessary to investigate the properties of blazars in detail. A densely sampled and unbiased light curve allows for observation of both high and low states of the sources, and the combination with multi-wavelength observation could contribute to the answer of several questions mentioned above. FACT (First G-APD Cherenkov Telescope) is the first operational telescope using silicon photomultiplier (SiPM, also known as Geigermode—Avalanche Photo Diode, G-APD) as photon detectors. SiPM have a very homogenous and stable longterm performance, and allow operation even during full moon without any filter, leading to a maximal duty cycle for an Imaging Air Cherenkov Telescope (IACT). Hence, FACT is an ideal device for such a longterm monitoring of bright blazars. A small set of sources (e.g., Markarian 421, Markarian 501, 1ES 1959+650, and 1ES 2344+51.4) is currently being monitored. In this contribution, the FACT telescope and the concept of longterm monitoring of bright blazars will be introduced. The results of the monitoring program will be shown, and the advantages of densely sampled and unbiased light curves will be discussed.}, language = {en} } @article{MuellerPaulsenBuckschetal.2023, author = {M{\"u}ller, Christina and Paulsen, Lisa and Bucksch, Jens and Wallmann-Sperlich, Birgit}, title = {Bewegungs- und Gesundheitsf{\"o}rderung in l{\"a}ndlichen und st{\"a}dtischen Kommunen - eine qualitative Analyse zu den Rollen potenzieller Multiplikator*innen}, series = {Pr{\"a}vention und Gesundheitsf{\"o}rderung}, volume = {18}, journal = {Pr{\"a}vention und Gesundheitsf{\"o}rderung}, number = {3}, issn = {1861-6755}, doi = {10.1007/s11553-022-00975-9}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-325039}, pages = {397-404}, year = {2023}, abstract = {Hintergrund Kommunale Bewegungsf{\"o}rderung kann zur Vermeidung lebensstilbedingter Erkrankungen beitragen, ist aber keine kommunale Pflichtaufgabe, weshalb es in der Regel keine klaren Zust{\"a}ndigkeiten daf{\"u}r gibt. Um zu verstehen, wie kommunale Bewegungsf{\"o}rderung in Deutschland vorangebracht werden kann, ist es wichtig, potenzielle Multiplikator*innen in st{\"a}dtischen und l{\"a}ndlichen Kommunen zu identifizieren und deren Rollen zu charakterisieren. Methodische Vorgehensweise Es wurden 18 potenzielle Multiplikator*innen der kommunalen Gesundheits- und Bewegungsf{\"o}rderung auf verschiedenen Ebenen (Bundesland, Landkreis/Stadt, Gemeinde/Stadtteil) in leitfadengest{\"u}tzten semistrukturierten Interviews zu ihrer eigenen Rolle sowie zu ihrer Wahrnehmung der Rollen anderer Akteur*innen befragt. Die Auswertung erfolgte gem{\"a}ß der inhaltlich-strukturierenden Inhaltsanalyse nach Kuckartz. Ergebnisse (Landes‑)Gesundheits{\"a}mter und Gesundheitskonferenzen nehmen eine beratende, vernetzende und fachlich unterst{\"u}tzende Rolle ein. Auf der Umsetzungsebene vor Ort m{\"u}ssen sich im Einzelfall K{\"u}mmer*innen finden, die in Stadt und Land unterschiedlich sein k{\"o}nnen. Die befragten Quartiermanager*innen sehen ihre prim{\"a}re Rolle in der Arbeit mit den B{\"u}rger*innen, die Verwaltungsmitarbeiter*innen in der administrativen Abwicklung von Projekten. Schlussfolgerung Fachliche Impulse zur kommunalen Bewegungsf{\"o}rderung k{\"o}nnen {\"u}ber Landesgesundheits{\"a}mter an Akteur*innen in Landkreisen und St{\"a}dten weitergegeben werden. F{\"u}r die Multiplikation und Umsetzung in einzelnen Gemeinden und Stadtteilen m{\"u}ssen Verantwortliche vor Ort gefunden werden bzw. Strukturen aufgebaut werden.}, language = {de} } @article{MuellerDomokosAmersbachetal.2023, author = {M{\"u}ller, Christina and Domokos, Bruno and Amersbach, Tanja and Hausmayer, Eva-Maria and Roßmann, Christin and Wallmann-Sperlich, Birgit and Bucksch, Jens}, title = {Development and reliability testing of an audit toolbox for the assessment of the physical activity friendliness of urban and rural environments in Germany}, series = {Frontiers in Public Health}, volume = {11}, journal = {Frontiers in Public Health}, issn = {2296-2565}, doi = {10.3389/fpubh.2023.1153088}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-326116}, year = {2023}, abstract = {Background: According to socio-ecological theories, physical activity behaviors are linked to the physical and social neighborhood environment. Reliable and contextually adapted instruments are needed to assess environmental characteristics related to physical activity. This work aims to develop an audit toolbox adapted to the German context, to urban and rural settings, for different population groups, and different types of physical activity; and to evaluate its inter-rater reliability. Methods: We conducted a systematic literature search to collect existing audit tools and to identify the latest evidence of environmental factors influencing physical activity in general, as well as in German populations. The results guided the construction of a category system for the toolbox. Items were assigned to the categories based on their relevance to physical activity and to the German context as well as their comprehensibility. We piloted the toolbox in different urban and rural areas (100 street segments, 15 parks, and 21 playgrounds) and calculated inter-rater reliability by Cohen's Kappa. Results: The audit toolbox comprises a basic streetscape audit with seven categories (land use and destinations, traffic safety, pedestrian infrastructure, cycling infrastructure, attractiveness, social environment, and subjective assessment), as well as supplementary tools for children and adolescents, seniors and people with impaired mobility, parks and public open spaces, playgrounds, and rural areas. 76 \% of all included items had moderate, substantial, or almost perfect inter-rater reliability (κ > 0.4). Conclusions: The audit toolbox is an innovative and reliable instrument for the assessment of the physical activity friendliness of urban and rural environments in Germany.}, language = {en} }