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Kiss AE, Venkatasubramani AV, Pathirana D, Krause S, Sparr AC, Hasenauer J, Imhof A, Müller M, Becker PB. Processivity and specificity of histone acetylation by the male-specific lethal complex. Nucleic Acids Res 2024:gkae123. [PMID: 38407474 DOI: 10.1093/nar/gkae123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/29/2024] [Accepted: 02/12/2024] [Indexed: 02/27/2024] Open
Abstract
Acetylation of lysine 16 of histone H4 (H4K16ac) stands out among the histone modifications, because it decompacts the chromatin fiber. The metazoan acetyltransferase MOF (KAT8) regulates transcription through H4K16 acetylation. Antibody-based studies had yielded inconclusive results about the selectivity of MOF to acetylate the H4 N-terminus. We used targeted mass spectrometry to examine the activity of MOF in the male-specific lethal core (4-MSL) complex on nucleosome array substrates. This complex is part of the Dosage Compensation Complex (DCC) that activates X-chromosomal genes in male Drosophila. During short reaction times, MOF acetylated H4K16 efficiently and with excellent selectivity. Upon longer incubation, the enzyme progressively acetylated lysines 12, 8 and 5, leading to a mixture of oligo-acetylated H4. Mathematical modeling suggests that MOF recognizes and acetylates H4K16 with high selectivity, but remains substrate-bound and continues to acetylate more N-terminal H4 lysines in a processive manner. The 4-MSL complex lacks non-coding roX RNA, a critical component of the DCC. Remarkably, addition of RNA to the reaction non-specifically suppressed H4 oligo-acetylation in favor of specific H4K16 acetylation. Because RNA destabilizes the MSL-nucleosome interaction in vitro we speculate that RNA accelerates enzyme-substrate turn-over in vivo, thus limiting the processivity of MOF, thereby increasing specific H4K16 acetylation.
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Affiliation(s)
- Anna E Kiss
- Biomedical Center, Molecular Biology Division, Ludwig-Maximilians-University of Munich, Planegg-Martinsried, Germany
| | - Anuroop V Venkatasubramani
- Biomedical Center, Molecular Biology Division, Ludwig-Maximilians-University of Munich, Planegg-Martinsried, Germany
| | - Dilan Pathirana
- Life and Medical Sciences (LIMES) Institute, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
| | - Silke Krause
- Biomedical Center, Molecular Biology Division, Ludwig-Maximilians-University of Munich, Planegg-Martinsried, Germany
| | - Aline Campos Sparr
- Biomedical Center, Molecular Biology Division, Ludwig-Maximilians-University of Munich, Planegg-Martinsried, Germany
| | - Jan Hasenauer
- Life and Medical Sciences (LIMES) Institute, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
- Computational Health Center, Helmholtz Zentrum München Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH), Neuherberg, Germany
| | - Axel Imhof
- Biomedical Center, Molecular Biology Division, Ludwig-Maximilians-University of Munich, Planegg-Martinsried, Germany
| | - Marisa Müller
- Biomedical Center, Molecular Biology Division, Ludwig-Maximilians-University of Munich, Planegg-Martinsried, Germany
| | - Peter B Becker
- Biomedical Center, Molecular Biology Division, Ludwig-Maximilians-University of Munich, Planegg-Martinsried, Germany
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2
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Eggers N, Gkountromichos F, Krause S, Campos-Sparr A, Becker P. Physical interaction between MSL2 and CLAMP assures direct cooperativity and prevents competition at composite binding sites. Nucleic Acids Res 2023; 51:9039-9054. [PMID: 37602401 PMCID: PMC10516644 DOI: 10.1093/nar/gkad680] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/13/2023] [Accepted: 08/09/2023] [Indexed: 08/22/2023] Open
Abstract
MSL2, the DNA-binding subunit of the Drosophila dosage compensation complex, cooperates with the ubiquitous protein CLAMP to bind MSL recognition elements (MREs) on the X chromosome. We explore the nature of the cooperative binding to these GA-rich, composite sequence elements in reconstituted naïve embryonic chromatin. We found that the cooperativity requires physical interaction between both proteins. Remarkably, disruption of this interaction does not lead to indirect, nucleosome-mediated cooperativity as expected, but to competition. The protein interaction apparently not only increases the affinity for composite binding sites, but also locks both proteins in a defined dimeric state that prevents competition. High Affinity Sites of MSL2 on the X chromosome contain variable numbers of MREs. We find that the cooperation between MSL2/CLAMP is not influenced by MRE clustering or arrangement, but happens largely at the level of individual MREs. The sites where MSL2/CLAMP bind strongly in vitro locate to all chromosomes and show little overlap to an expanded set of X-chromosomal MSL2 in vivo binding sites generated by CUT&RUN. Apparently, the intrinsic MSL2/CLAMP cooperativity is limited to a small selection of potential sites in vivo. This restriction must be due to components missing in our reconstitution, such as roX2 lncRNA.
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Affiliation(s)
- Nikolas Eggers
- Biomedical Center, Molecular Biology Division, LMU, Munich, Germany
| | | | - Silke Krause
- Biomedical Center, Molecular Biology Division, LMU, Munich, Germany
| | | | - Peter B Becker
- Biomedical Center, Molecular Biology Division, LMU, Munich, Germany
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3
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Hansen MJ, Krause S, Dhellemmes F, Pacher K, Kurvers RHJM, Domenici P, Krause J. Mechanisms of prey division in striped marlin, a marine group hunting predator. Commun Biol 2022; 5:1161. [PMID: 36316537 PMCID: PMC9622829 DOI: 10.1038/s42003-022-03951-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022] Open
Abstract
Many terrestrial group-hunters cooperate to kill prey but then compete for their share with dominance being a strong predictor of prey division. In contrast, little is known about prey division in group-hunting marine predators that predominately attack small, evasive prey (e.g. fish schools). We identified individual striped marlin (Kajikia audax) hunting in groups. Groups surrounded prey but individuals took turns attacking. We found that competition for prey access led to an unequal division of prey among the predators, with 50% of the most frequently attacking marlin capturing 70–80% of the fish. Neither aggression, body size nor variation in hunting efficiency explained this skewed prey division. We did find that newly arrived groups of marlin gained on average more access to the prey. This raises the possibility that newly arrived marlin were hungrier and more motivated to feed. However, this result does not necessarily explain the unequal prey division among the predators because the skew in prey captures was found at the level of these groups. Dynamic prey division is probably widespread but under-reported in marine group-hunters and the inability of individuals to monopolize prey until satiation likely reduces the importance of social hierarchies for prey division. Striped marlin use a dynamic prey division method when hunting as a group, taking turns to feed but without doing so equally.
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Affiliation(s)
- M. J. Hansen
- grid.419247.d0000 0001 2108 8097Department of Fish Biology, Fisheries and Aquaculture, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany
| | - S. Krause
- grid.4562.50000 0001 0057 2672Department of Electrical Engineering and Computer Science, Lübeck University of Applied Sciences, 23562 Lübeck, Germany
| | - F. Dhellemmes
- grid.419247.d0000 0001 2108 8097Department of Fish Biology, Fisheries and Aquaculture, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany
| | - K. Pacher
- grid.7468.d0000 0001 2248 7639Faculty of Life Science, Humboldt-Universität zu Berlin, Invalidenstrasse 42, 10115 Berlin, Germany
| | - R. H. J. M. Kurvers
- grid.419247.d0000 0001 2108 8097Department of Fish Biology, Fisheries and Aquaculture, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany ,grid.419526.d0000 0000 9859 7917Center for Adaptive Rationality, Max Planck Institute for Human Development, Lentzeallee 94, 14195 Berlin, Germany
| | - P. Domenici
- grid.5326.20000 0001 1940 4177IBF-CNR, Consiglio Nazionale delle Ricerche, Area di Ricerca San Cataldo, Via G. Moruzzi N°1, 56124 Pisa, Italy ,IAS-CNR, Località Sa Mardini, 09170 Torregrande, Oristano Italy
| | - J. Krause
- grid.419247.d0000 0001 2108 8097Department of Fish Biology, Fisheries and Aquaculture, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany ,grid.6734.60000 0001 2292 8254Cluster of Excellence “Science of Intelligence,” Technical University of Berlin, Marchstr. 23, 10587 Berlin, Germany ,grid.7468.d0000 0001 2248 7639Present Address: Faculty of Life Science, Humboldt-Universität zu Berlin, Invalidenstrasse 42, 10115 Berlin, Germany
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Drummond JD, Aquino T, Davies‐Colley RJ, Stott R, Krause S. Modeling Contaminant Microbes in Rivers During Both Baseflow and Stormflow. Geophys Res Lett 2022; 49:e2021GL096514. [PMID: 35866058 PMCID: PMC9286818 DOI: 10.1029/2021gl096514] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 01/20/2022] [Accepted: 03/31/2022] [Indexed: 06/15/2023]
Abstract
Rivers transport contaminant microorganisms (including fecal indicator bacteria and human pathogens) long distances downstream of diffuse and point sources, posing a human health risk. We present a mobile-immobile model that incorporates transport as well as immobilization and remobilization of contaminant microbes and other fine particles during baseflow and stormflow. During baseflow conditions, hyporheic exchange flow causes particles to accumulate in streambed sediments. Remobilization of stored particles from streambed sediments occurs slowly during baseflow via hyporheic exchange flow, while remobilization is vastly increased during stormflow. Model predictions are compared to observations over a range of artificial and natural flood events in the dairy contaminated Topehaehae Stream, New Zealand. The model outputs closely matched timing and magnitude of E. coli and turbidity observations through multiple high-flow events. By accounting for both state-of-flow and hyporheic exchange processes, the model provides a valuable framework for predicting particle and contaminant microbe behavior in streams.
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Affiliation(s)
- J. D. Drummond
- University of BirminghamSchool of Geography, Earth & Environmental SciencesBirminghamUK
| | - T. Aquino
- Université de RennesCNRSGéosciences Rennes, UMR 6118RennesFrance
| | - R. J. Davies‐Colley
- NIWA (National Institute of Water & Atmospheric Research Ltd.)HamiltonNew Zealand
| | - R. Stott
- NIWA (National Institute of Water & Atmospheric Research Ltd.)HamiltonNew Zealand
| | - S. Krause
- University of BirminghamSchool of Geography, Earth & Environmental SciencesBirminghamUK
- Université de LyonUniversité Claude Bernard Lyon 1CNRSENTPEUMR5023Ecologie des Hydrosystèmes Naturels et Anthropisés (LEHNA)VilleurbanneFrance
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5
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Krause S, Telayna JMJR, Costantini RA, Telayna JM. Stenting in the common femoral vein does not increase posthrombotic syndrome or rethrombosis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2044] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
In lower limbs deep venous thrombosis (DVT) scenario there is evidence that favours catheter guided invasive treatment. The treatment with stenting in the common femoral vein could be related with a diminished permeability in the inflow of the deep femoral vein. There is scarce data of the clinical follow up of this treatment.
Purpose
To analize and compare clinical and procedural outcomes in endovenous interventions that required stent placement in the common femoral vein because of residual lesion vs interventions that did no require such treatment.
Methods
From May 2010 to December 2020, 122 endovenous interventions were performed, within these 74 were DVT compromising the iliofemoral territory. Two groups were defined: Group A 28 (38%) that required stent placement in the common femoral vein and Group B 46 (62%) that did not required such treatment.
Results
Baseline characteristics were Group A vs Group B n (%) respectively: Median age 41.1±16.7 vs 40.5±18.8; female 23 (82) vs 27 (58); smoking 7 (25) vs 14 (30); cancer 1 (4) vs 7 (15); prior prolonged rest 7 (25) vs 14 (30); concomitant diagnosis of pulmonary embolism 7 (25) vs 17 (37). Within the female population 2 (7) vs 1 (2) were in puerperium; 6 (21) vs 6 (13) were under contraceptive therapy. Regarding the diagnosis of DVT 21 (75) vs 37 (80) were acute; 7 (25) vs 9 (19) were chronic. Compromised vessels were primitive iliac vein 21 (75) vs 38 (82); external iliac vein 6 (21) vs 18 (39); superficial femoral vein 11 (39) vs 8 (17); May-Thurner syndrome 14 (50) vs 20 (43). As regards the aspects of the intervention 15 (53) vs 34 (74) had a filter implanted in the inferior vena cava; thrombolytics were infused in 20 (71) vs 32 (70); manual thrombectomy was performed in 8 (27) vs 17 (37); mechanical thrombectomy 11 (39) vs 19 (41); pre dilation with balloon was performed in 22 (79) vs 39 (85); dedicated venous stents were implanted in 22 (78) vs 39 (85); not dedicated venous stents in 13 (46) vs 11 (24).
Technique success was achieved in 28 (100) vs 45 (98) p=1; major bleeding occurred 0 vs 2 (4) p=0.5; rethrombosis 3 (10) vs 9 (20) p=0.25; intrahospital death 1 (4) vs 2 (4) p=1; early reintervention was needed 1 (4) vs 2 (4) p=1, radiation dose (min) 35.4±20.2 vs 30.1±17.0 p=0.2; Contrast (ml) 216.5±76.8 vs 217.3±90.8 p=0.9. During follow up (34.1±31.5 vs 22.3±16.4) image control was performed in 27 (96) vs 39 (85) p=0.23 with either doppler or chest computed tomography angiography. Post thrombotic syndrome (PTS) symptoms were classified with Villalta Score assuming that 0–4 points had no PTS, 5–9 points presented mild PTS, 10–14 points moderate PTS, >14 points severe PTS, in Group A 1 (4) presented mild PTS vs Group B 2 (4) mild PTS p=1, 1 (2) moderate PTS.
Conclusions
Endovenous treatment with stent placement in the common femoral vein did not required more reinterventions nor had more complications nor had more PTS that the interventions without stent placement.
Funding Acknowledgement
Type of funding sources: None. Table 1. Basal CharacteristicsTable 2. Outcomes
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Affiliation(s)
- S Krause
- Universitary Hospital Austral, Buenos Aires, Argentina
| | | | | | - J M Telayna
- Universitary Hospital Austral, Buenos Aires, Argentina
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6
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Roberts C, Kaplow J, Giroux M, Krause S, Kanekiyo M. Amyloid and APOE Status of Screened Subjects in the Elenbecestat MissionAD Phase 3 Program. J Prev Alzheimers Dis 2021; 8:218-223. [PMID: 33569570 DOI: 10.14283/jpad.2021.4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND/OBJECTIVES Elenbecestat, an oral BACE-1 inhibitor that has been shown to reduce Aβ levels in cerebrospinal fluid, was investigated in two global phase 3 studies in early AD. Here we report on differences observed in characteristics of APOE ε4 and amyloid positive subjects in the large screening cohort. DESIGN Screening was performed in 5 sequential tiers over a maximum of 80 days, as part of placebo controlled, double blind phase 3 studies. SETTING Subjects were evaluated at sites in 7 regions (29 countries). PARTICIPANTS Overall, 9758 subjects were screened. INTERVENTION All screened subjects that were eligible received either placebo or 50 mg QID elenbecestat post randomisation. MEASUREMENTS Gender, disease staging, APOE ε4 status, amyloid status, amyloid positron emission tomography (PET) standard uptake value ratio (SUVr) and amyloid PET Centiloid (CL) values were determined for screened subjects; by country and region. RESULTS In this program, 44% of subjects were APOE ε4 positive. Frequency of females was similar in both APOE ε4 positive and negative groups. However, early mild AD subjects were slightly higher in the APOE ε4 positive group compared with the APOE ε4 negative group. 56% of subjects were amyloid positive. The mean age in the amyloid positive group was slightly higher than the amyloid negative group. The gender distribution was similar between amyloid groups. A lower number of mild cognitive impairment was observed in the amyloid positive group along with a higher number of early mild AD. APOE ε4 positive subjects were higher in amyloid positive group compared to the amyloid negative group. China had the lowest APOE ε4 and amyloid positivity rates with Western Europe and Oceania performing best. Subjects received florbetapir, florbetaben or flutemetamol amyloid PET tracer. Amyloid negative and positive subjects CL values were normally distributed around their respective means of 1.5 CL and 83 CL. However, there was an appreciable overlap in the 20-40 CL range. CONCLUSIONS In this large cohort of cognitively impaired subjects, subject demographics characteristics were comparable regardless of APOE genotype or amyloid positivity. APOE ε4 positivity and amyloid positivity varied by country and by geographical region.
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Affiliation(s)
- C Roberts
- Claire Roberts, Eisai Ltd., Hatfield, UK, , Phone: +44 8456 761 590
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7
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Müller M, Schauer T, Krause S, Villa R, Thomae AW, Becker PB. Two-step mechanism for selective incorporation of lncRNA into a chromatin modifier. Nucleic Acids Res 2020; 48:7483-7501. [PMID: 32510132 PMCID: PMC7528653 DOI: 10.1093/nar/gkaa492] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/25/2020] [Accepted: 05/29/2020] [Indexed: 02/04/2023] Open
Abstract
The MLE DExH helicase and the roX lncRNAs are essential components of the chromatin modifying Dosage Compensation Complex (DCC) in Drosophila. To explore the mechanism of ribonucleoprotein complex assembly, we developed vitRIP, an unbiased, transcriptome-wide in vitro assay that reveals RNA binding specificity. We found that MLE has intrinsic specificity for U-/A-rich sequences and tandem stem-loop structures and binds many RNAs beyond roX in vitro. The selectivity of the helicase for physiological substrates is further enhanced by the core DCC. Unwinding of roX2 by MLE induces a highly selective RNA binding surface in the unstructured C-terminus of the MSL2 subunit and triggers-specific association of MLE and roX2 with the core DCC. The exquisite selectivity of roX2 incorporation into the DCC thus originates from intimate cooperation between the helicase and the core DCC involving two distinct RNA selection principles and their mutual refinement.
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Affiliation(s)
- Marisa Müller
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany
| | - Tamas Schauer
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany.,Bioinformatics Unit, Biomedical Center, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany
| | - Silke Krause
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany
| | - Raffaella Villa
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany
| | - Andreas W Thomae
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany.,Core Facility Bioimaging at the Biomedical Center, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany
| | - Peter B Becker
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany
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8
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Krause S, Molari M, Gorb EV, Gorb SN, Kossel E, Haeckel M. Persistence of plastic debris and its colonization by bacterial communities after two decades on the abyssal seafloor. Sci Rep 2020; 10:9484. [PMID: 32528001 PMCID: PMC7289819 DOI: 10.1038/s41598-020-66361-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 02/25/2020] [Indexed: 12/14/2022] Open
Abstract
The fate of plastic debris entering the oceans is largely unconstrained. Currently, intensified research is devoted to the abiotic and microbial degradation of plastic floating near the ocean surface for an extended period of time. In contrast, the impacts of environmental conditions in the deep sea on polymer properties and rigidity are virtually unknown. Here, we present unique results of plastic items identified to have been introduced into deep-sea sediments at a water depth of 4150 m in the eastern equatorial Pacific Ocean more than two decades ago. The results, including optical, spectroscopic, physical and microbial analyses, clearly demonstrate that the bulk polymer materials show no apparent sign of physical or chemical degradation. Solely the polymer surface layers showed reduced hydrophobicity, presumably caused by microbial colonization. The bacterial community present on the plastic items differed significantly (p < 0.1%) from those of the adjacent natural environment by a dominant presence of groups requiring steep redox gradients (Mesorhizobium, Sulfurimonas) and a remarkable decrease in diversity. The establishment of chemical gradients across the polymer surfaces presumably caused these conditions. Our findings suggest that plastic is stable over extended times under deep-sea conditions and that prolonged deposition of polymer items at the seafloor may induce local oxygen depletion at the sediment-water interface.
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Affiliation(s)
- S Krause
- GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany.
| | - M Molari
- HGF-MPG Joint Research Group on Deep Sea Ecology and Technology, Max Planck Institute for Marine Microbiology, Bremen, Germany
| | - E V Gorb
- Zoological Institute, Christian-Albrechts-University, Kiel, Germany
| | - S N Gorb
- Zoological Institute, Christian-Albrechts-University, Kiel, Germany
| | - E Kossel
- GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
| | - M Haeckel
- GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
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9
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Scacchetti A, Schauer T, Reim A, Apostolou Z, Campos Sparr A, Krause S, Heun P, Wierer M, Becker PB. Drosophila SWR1 and NuA4 complexes are defined by DOMINO isoforms. eLife 2020; 9:e56325. [PMID: 32432549 PMCID: PMC7239659 DOI: 10.7554/elife.56325] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 04/23/2020] [Indexed: 12/11/2022] Open
Abstract
Histone acetylation and deposition of H2A.Z variant are integral aspects of active transcription. In Drosophila, the single DOMINO chromatin regulator complex is thought to combine both activities via an unknown mechanism. Here we show that alternative isoforms of the DOMINO nucleosome remodeling ATPase, DOM-A and DOM-B, directly specify two distinct multi-subunit complexes. Both complexes are necessary for transcriptional regulation but through different mechanisms. The DOM-B complex incorporates H2A.V (the fly ortholog of H2A.Z) genome-wide in an ATP-dependent manner, like the yeast SWR1 complex. The DOM-A complex, instead, functions as an ATP-independent histone acetyltransferase complex similar to the yeast NuA4, targeting lysine 12 of histone H4. Our work provides an instructive example of how different evolutionary strategies lead to similar functional separation. In yeast and humans, nucleosome remodeling and histone acetyltransferase complexes originate from gene duplication and paralog specification. Drosophila generates the same diversity by alternative splicing of a single gene.
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Affiliation(s)
- Alessandro Scacchetti
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-UniversityMunichGermany
| | - Tamas Schauer
- Bioinformatics Unit, Biomedical Center, Ludwig-Maximilians-UniversityMunichGermany
| | - Alexander Reim
- Department of Proteomics and Signal Transduction, Max Planck Institute of BiochemistryMunichGermany
| | - Zivkos Apostolou
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-UniversityMunichGermany
| | - Aline Campos Sparr
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-UniversityMunichGermany
| | - Silke Krause
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-UniversityMunichGermany
| | - Patrick Heun
- Wellcome Trust Centre for Cell Biology and Institute of Cell Biology, School of Biological Sciences, The University of EdinburghEdinburghUnited Kingdom
| | - Michael Wierer
- Department of Proteomics and Signal Transduction, Max Planck Institute of BiochemistryMunichGermany
| | - Peter B Becker
- Molecular Biology Division, Biomedical Center, Ludwig-Maximilians-UniversityMunichGermany
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Moretti A, Fonteyne L, Giesert F, Hoppmann P, Meier AB, Bozoglu T, Baehr A, Schneider CM, Sinnecker D, Klett K, Fröhlich T, Rahman FA, Haufe T, Sun S, Jurisch V, Kessler B, Hinkel R, Dirschinger R, Martens E, Jilek C, Graf A, Krebs S, Santamaria G, Kurome M, Zakhartchenko V, Campbell B, Voelse K, Wolf A, Ziegler T, Reichert S, Lee S, Flenkenthaler F, Dorn T, Jeremias I, Blum H, Dendorfer A, Schnieke A, Krause S, Walter MC, Klymiuk N, Laugwitz KL, Wolf E, Wurst W, Kupatt C. Somatic gene editing ameliorates skeletal and cardiac muscle failure in pig and human models of Duchenne muscular dystrophy. Nat Med 2020; 26:207-214. [PMID: 31988462 PMCID: PMC7212064 DOI: 10.1038/s41591-019-0738-2] [Citation(s) in RCA: 140] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 12/11/2019] [Indexed: 11/09/2022]
Abstract
Frameshift mutations in the DMD gene, encoding dystrophin, cause Duchenne muscular dystrophy (DMD), leading to terminal muscle and heart failure in patients. Somatic gene editing by sequence-specific nucleases offers new options for restoring the DMD reading frame, resulting in expression of a shortened but largely functional dystrophin protein. Here, we validated this approach in a pig model of DMD lacking exon 52 of DMD (DMDΔ52), as well as in a corresponding patient-derived induced pluripotent stem cell model. In DMDΔ52 pigs1, intramuscular injection of adeno-associated viral vectors of serotype 9 carrying an intein-split Cas9 (ref. 2) and a pair of guide RNAs targeting sequences flanking exon 51 (AAV9-Cas9-gE51) induced expression of a shortened dystrophin (DMDΔ51-52) and improved skeletal muscle function. Moreover, systemic application of AAV9-Cas9-gE51 led to widespread dystrophin expression in muscle, including diaphragm and heart, prolonging survival and reducing arrhythmogenic vulnerability. Similarly, in induced pluripotent stem cell-derived myoblasts and cardiomyocytes of a patient lacking DMDΔ52, AAV6-Cas9-g51-mediated excision of exon 51 restored dystrophin expression and amelioreate skeletal myotube formation as well as abnormal cardiomyocyte Ca2+ handling and arrhythmogenic susceptibility. The ability of Cas9-mediated exon excision to improve DMD pathology in these translational models paves the way for new treatment approaches in patients with this devastating disease.
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Affiliation(s)
- A Moretti
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany.
| | - L Fonteyne
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
| | - F Giesert
- Institute of Developmental Genetics, Helmholtz Centre and Munich School of Life Sciences Weihenstephan, Technical University of Munich, Munich, Germany
| | - P Hoppmann
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - A B Meier
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - T Bozoglu
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - A Baehr
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - C M Schneider
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - D Sinnecker
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - K Klett
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - T Fröhlich
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - F Abdel Rahman
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - T Haufe
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - S Sun
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - V Jurisch
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - B Kessler
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - R Hinkel
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - R Dirschinger
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - E Martens
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - C Jilek
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - A Graf
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - S Krebs
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - G Santamaria
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - M Kurome
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - V Zakhartchenko
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - B Campbell
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - K Voelse
- Reseach Unit Apoptosis in Hemopoietic Stem Cells, Helmholtz Zentrum München, German Center for Environmental Health (HMGU), Munich, Germany
| | - A Wolf
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - T Ziegler
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - S Reichert
- Department of Neurology, Friedrich Baur Institute, LMU Munich, Munich, Germany
| | - S Lee
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - F Flenkenthaler
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - T Dorn
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - I Jeremias
- Reseach Unit Apoptosis in Hemopoietic Stem Cells, Helmholtz Zentrum München, German Center for Environmental Health (HMGU), Munich, Germany
| | - H Blum
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - A Dendorfer
- Walter Brendel Centre of Experimental Medicine, University Hospital, LMU Munich, Munich, Germany
| | - A Schnieke
- Chair of Livestock Biotechnology, School of Life Sciences Weihenstephan, Technical University of Munich, Munich, Germany
| | - S Krause
- Department of Neurology, Friedrich Baur Institute, LMU Munich, Munich, Germany
| | - M C Walter
- Department of Neurology, Friedrich Baur Institute, LMU Munich, Munich, Germany
| | - N Klymiuk
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - K L Laugwitz
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany
| | - E Wolf
- Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - W Wurst
- Institute of Developmental Genetics, Helmholtz Centre and Munich School of Life Sciences Weihenstephan, Technical University of Munich, Munich, Germany
- German Center for Neurodegenerative Diseases, Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - C Kupatt
- Klinik und Poliklinik für Innere Medizin I, Klinikum rechts der Isar, Technical University Munich and German Center for Cardiovascular Research (DZHK), Munich Heart Alliance, Munich, Germany.
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11
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Hansen MJ, Krause S, Breuker M, Kurvers RHJM, Dhellemmes F, Viblanc PE, Müller J, Mahlow C, Boswell K, Marras S, Domenici P, Wilson ADM, Herbert-Read JE, Steffensen JF, Fritsch G, Hildebrandt TB, Zaslansky P, Bach P, Sabarros PS, Krause J. Linking hunting weaponry to attack strategies in sailfish and striped marlin. Proc Biol Sci 2020; 287:20192228. [PMID: 31937224 DOI: 10.1098/rspb.2019.2228] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Linking morphological differences in foraging adaptations to prey choice and feeding strategies has provided major evolutionary insights across taxa. Here, we combine behavioural and morphological approaches to explore and compare the role of the rostrum (bill) and micro-teeth in the feeding behaviour of sailfish (Istiophorus platypterus) and striped marlin (Kajikia audax) when attacking schooling sardine prey. Behavioural results from high-speed videos showed that sailfish and striped marlin both regularly made rostrum contact with prey but displayed distinct strategies. Marlin used high-speed dashes, breaking schools apart, often contacting prey incidentally or tapping at isolated prey with their rostra; while sailfish used their rostra more frequently and tended to use a slower, less disruptive approach with more horizontal rostral slashes on cohesive prey schools. Capture success per attack was similar between species, but striped marlin had higher capture rates per minute. The rostra of both species are covered with micro-teeth, and micro-CT imaging showed that species did not differ in average micro-tooth length, but sailfish had a higher density of micro-teeth on the dorsal and ventral sides of their rostra and a higher amount of micro-teeth regrowth, suggesting a greater amount of rostrum use is associated with more investment in micro-teeth. Our analysis shows that the rostra of billfish are used in distinct ways and we discuss our results in the broader context of relationships between morphological and behavioural feeding adaptations across species.
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Affiliation(s)
- M J Hansen
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, Berlin 12587, Germany
| | - S Krause
- Department of Electrical Engineering and Computer Science, Lübeck University of Applied Sciences, Lübeck 23562, Germany
| | - M Breuker
- Department of Electrical Engineering and Computer Science, Lübeck University of Applied Sciences, Lübeck 23562, Germany
| | - R H J M Kurvers
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, Berlin 12587, Germany.,Center for Adaptive Rationality, Max Planck Institute for Human Development, Lentzeallee 94, Berlin 14195, Germany
| | - F Dhellemmes
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, Berlin 12587, Germany
| | - P E Viblanc
- Faculty of Life Science, Humboldt-Universität zu Berlin, Invalidenstrasse 42, Berlin 10115, Germany
| | - J Müller
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, an der Humboldt-Universität zu Berlin, Invalidenstr. 43, Berlin 10115, Germany
| | - C Mahlow
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, an der Humboldt-Universität zu Berlin, Invalidenstr. 43, Berlin 10115, Germany
| | - K Boswell
- Department of Biological Science, Marine Sciences Program, Florida International University, North Miami, FL 33181, USA
| | - S Marras
- IAMC-CNR, Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Località Sa Mardini, 09170 Torregrande, Oristano, Italy
| | - P Domenici
- IAMC-CNR, Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Località Sa Mardini, 09170 Torregrande, Oristano, Italy
| | - A D M Wilson
- School of Biological and Marine Sciences, University of Plymouth, Plymouth PL4 8AA, UK
| | - J E Herbert-Read
- Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
| | - J F Steffensen
- Marine Biological Section, University of Copenhagen, Strandpromenaden 5, Helsingør 3000, Denmark
| | - G Fritsch
- Department for Reproduction Management and Reproduction Biology, Leibniz-Institute for Zoo and Wildlife Research, Alfred-Kowalke-Straße, Berlin 1710315, Germany
| | - T B Hildebrandt
- Department for Reproduction Management and Reproduction Biology, Leibniz-Institute for Zoo and Wildlife Research, Alfred-Kowalke-Straße, Berlin 1710315, Germany
| | - P Zaslansky
- Julius Wolff Institute, Charité - Universitätsmedizin, Berlin 13353, Germany
| | - P Bach
- IRD, Centre Halieutique Méditerranéen et Tropical, BP 171, Sète Cedex 34203, France
| | - P S Sabarros
- IRD, Centre Halieutique Méditerranéen et Tropical, BP 171, Sète Cedex 34203, France.,Institut de Recherche pour le Développement, UMR 248 MARBEC, Ob7, Avenue Jean Monnet, CS 30171, Sète Cedex 34203, France
| | - J Krause
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, Berlin 12587, Germany.,Faculty of Life Science, Humboldt-Universität zu Berlin, Invalidenstrasse 42, Berlin 10115, Germany
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12
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Friedlein J, Harm J, Lindner P, Bargsten L, Bazarnik M, Krause S, Wiesendanger R. A radio-frequency spin-polarized scanning tunneling microscope. Rev Sci Instrum 2019; 90:123705. [PMID: 31893779 DOI: 10.1063/1.5104317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 11/29/2019] [Indexed: 06/10/2023]
Abstract
A scanning tunneling microscope for spin-resolved studies of dynamic systems is presented. The cryogenic setup allows the scanning tunneling microscope to achieve a cutoff frequency beyond 26 GHz at the tunnel junction and to be operable at temperatures of 1.1 K-100 K in a magnetic field of up to 3 T. For this purpose, the microscope and its wiring as well as the associated cryostat system were specially designed and manufactured. For sample preparation, an ultrahigh vacuum system was developed, which is equipped with modular preparation platforms. Measurements showing the characteristics of the scanning tunneling microscope in the time and frequency domain are presented. As a proof of concept, experimental data of the Pd/Fe/Ir(111) sample system at 95 K in a magnetic field of 3 T are presented.
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Affiliation(s)
- J Friedlein
- Department of Physics, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - J Harm
- Department of Physics, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - P Lindner
- Department of Physics, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - L Bargsten
- Department of Physics, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - M Bazarnik
- Department of Physics, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - S Krause
- Department of Physics, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - R Wiesendanger
- Department of Physics, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
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13
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Albig C, Wang C, Dann GP, Wojcik F, Schauer T, Krause S, Maenner S, Cai W, Li Y, Girton J, Muir TW, Johansen J, Johansen KM, Becker PB, Regnard C. JASPer controls interphase histone H3S10 phosphorylation by chromosomal kinase JIL-1 in Drosophila. Nat Commun 2019; 10:5343. [PMID: 31767855 PMCID: PMC6877644 DOI: 10.1038/s41467-019-13174-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 10/22/2019] [Indexed: 01/02/2023] Open
Abstract
In flies, the chromosomal kinase JIL-1 is responsible for most interphase histone H3S10 phosphorylation and has been proposed to protect active chromatin from acquiring heterochromatic marks, such as dimethylated histone H3K9 (H3K9me2) and HP1. Here, we show that JIL-1's targeting to chromatin depends on a PWWP domain-containing protein JASPer (JIL-1 Anchoring and Stabilizing Protein). JASPer-JIL-1 (JJ)-complex is the major form of kinase in vivo and is targeted to active genes and telomeric transposons via binding of the PWWP domain of JASPer to H3K36me3 nucleosomes, to modulate transcriptional output. JIL-1 and JJ-complex depletion in cycling cells lead to small changes in H3K9me2 distribution at active genes and telomeric transposons. Finally, we identify interactors of the endogenous JJ-complex and propose that JIL-1 not only prevents heterochromatin formation but also coordinates chromatin-based regulation in the transcribed part of the genome.
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Affiliation(s)
- Christian Albig
- Molecular Biology Division, Biomedical Center, Faculty of Medicine and Center for Integrated Protein Science Munich (CIPSM), LMU Munich, 82152, Martinsried, Germany
- Graduate School for Quantitative Biosciences (QBM), LMU Munich, 81377, Munich, Germany
| | - Chao Wang
- Roy J. Carver Department of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, IA, 50011, USA
| | - Geoffrey P Dann
- Department of Chemistry, Frick Laboratory, Princeton University, Princeton, NJ, 08544, USA
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Felix Wojcik
- Department of Chemistry, Frick Laboratory, Princeton University, Princeton, NJ, 08544, USA
| | - Tamás Schauer
- Bioinformatics Unit, Biomedical Center, Faculty of Medicine, LMU Munich, 82152, Martinsried, Germany
| | - Silke Krause
- Molecular Biology Division, Biomedical Center, Faculty of Medicine and Center for Integrated Protein Science Munich (CIPSM), LMU Munich, 82152, Martinsried, Germany
| | - Sylvain Maenner
- Molecular Biology Division, Biomedical Center, Faculty of Medicine and Center for Integrated Protein Science Munich (CIPSM), LMU Munich, 82152, Martinsried, Germany
- UMR7365 CNRS-UL, IMoPA, University of Lorraine, 54505, Vandoeuvre-lès-Nancy, France
| | - Weili Cai
- Roy J. Carver Department of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, IA, 50011, USA
| | - Yeran Li
- Roy J. Carver Department of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, IA, 50011, USA
| | - Jack Girton
- Roy J. Carver Department of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, IA, 50011, USA
| | - Tom W Muir
- Department of Chemistry, Frick Laboratory, Princeton University, Princeton, NJ, 08544, USA
| | - Jørgen Johansen
- Roy J. Carver Department of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, IA, 50011, USA
| | - Kristen M Johansen
- Roy J. Carver Department of Biochemistry, Biophysics, and Molecular Biology, Iowa State University, Ames, IA, 50011, USA
| | - Peter B Becker
- Molecular Biology Division, Biomedical Center, Faculty of Medicine and Center for Integrated Protein Science Munich (CIPSM), LMU Munich, 82152, Martinsried, Germany.
| | - Catherine Regnard
- Molecular Biology Division, Biomedical Center, Faculty of Medicine and Center for Integrated Protein Science Munich (CIPSM), LMU Munich, 82152, Martinsried, Germany.
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14
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Geraedts M, Krause S, Schneider M, Leinert J, de Cruppé W. Patient safety incidents in ambulatory care in Germany. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz185.620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
In contrast to the inpatient sector, reliable data on the epidemiology and public health impact of patient safety incidents (PSI) are hardly found in the outpatient sector. Thus, this study focusses on the incidence of PSI; the distribution among the various specialist groups; the harmful consequences; the causes and how affected patients deal with PSI in Germany.
Methods
We conducted a cross-sectional study using a newly developed computer-assisted-telephone-interview survey tool. Based on random telephone numbers, citizens >39 years were asked to report whether they had experienced a PSI in the last year or since their 40th birthday; whereby the PSI happened, what consequences the PSI had for them and if they reported the PSI back to their physician. We performed descriptive and multivariate analyses and extrapolated the results to the total population >39 years in Germany.
Results
10037 citizens were surveyed (response rate 13%): 8841 had an outpatient visit last year, of whom 1570 (18%) had experienced at least one PSI. In total, 2832 PSI were reported. General practitioners caused 43% of PSI. Among specialists (54%), most PSI were found among orthopedists (15%) and internists (9%) and arose in connection with anamnesis and clinical examination (61%) as well as drug prescriptions (15%). 72% of the PSI caused health related harm. The most frequent harm was a deterioration in health (23%) and persistent pain (22%). 54% of those affected described the harm as severe or very severe. 27% considered doctors’ stress and lack of time or poor communication (18%) as causes for PSI. 32% of PSI were reported back to the treating physician.
Discussion
Extrapolated to the total population >39 years in Germany (47.2 million), an incidence of 12 million PSI per year must be expected with around 6.6 million affected outpatients. Thus, PSI in the outpatient sector are of immense public health importance in Germany.
Key messages
Patient safety incidents (PSI) often happen in the German outpatient sector. Outpatient PSI can also be accompanied by severe harm for patients.
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Affiliation(s)
- M Geraedts
- Institute for Health Services Research and Clinical Epidemio, Philipps-Universitaet Marburg, Marburg, Germany
| | - S Krause
- Institute for Health Services Research and Clinical Epidemio, Philipps-Universitaet Marburg, Marburg, Germany
| | - M Schneider
- Institute for Health Services Research and Clinical Epidemio, Philipps-Universitaet Marburg, Marburg, Germany
| | - J Leinert
- Infas Institut fuer Angewandte Sozialwissenschaft GmbH, Bonn, Germany
| | - W de Cruppé
- Institute for Health Services Research and Clinical Epidemio, Philipps-Universitaet Marburg, Marburg, Germany
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15
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Albig C, Tikhonova E, Krause S, Maksimenko O, Regnard C, Becker PB. Factor cooperation for chromosome discrimination in Drosophila. Nucleic Acids Res 2019; 47:1706-1724. [PMID: 30541149 PMCID: PMC6393291 DOI: 10.1093/nar/gky1238] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/05/2018] [Accepted: 11/29/2018] [Indexed: 12/27/2022] Open
Abstract
Transcription regulators select their genomic binding sites from a large pool of similar, non-functional sequences. Although general principles that allow such discrimination are known, the complexity of DNA elements often precludes a prediction of functional sites. The process of dosage compensation in Drosophila allows exploring the rules underlying binding site selectivity. The male-specific-lethal (MSL) Dosage Compensation Complex (DCC) selectively binds to some 300 X chromosomal ‘High Affinity Sites’ (HAS) containing GA-rich ‘MSL recognition elements’ (MREs), but disregards thousands of other MRE sequences in the genome. The DNA-binding subunit MSL2 alone identifies a subset of MREs, but fails to recognize most MREs within HAS. The ‘Chromatin-linked adaptor for MSL proteins’ (CLAMP) also interacts with many MREs genome-wide and promotes DCC binding to HAS. Using genome-wide DNA-immunoprecipitation we describe extensive cooperativity between both factors, depending on the nature of the binding sites. These are explained by physical interaction between MSL2 and CLAMP. In vivo, both factors cooperate to compete with nucleosome formation at HAS. The male-specific MSL2 thus synergises with a ubiquitous GA-repeat binding protein for refined X/autosome discrimination.
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Affiliation(s)
- Christian Albig
- Molecular Biology Division, Biomedical Center, Faculty of Medicine and Center for Integrated Protein Science Munich (CIPSM), Ludwig-Maximilians-Universität Munich, 82151 Martinsried, Germany.,Graduate School for Quantitative Biosciences (QBM), Ludwig-Maximilians-Universität Munich, 81377 Munich, Germany
| | - Evgeniya Tikhonova
- Group of Molecular Organization of Genome, Department of the Control of Genetic Processes, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Silke Krause
- Molecular Biology Division, Biomedical Center, Faculty of Medicine and Center for Integrated Protein Science Munich (CIPSM), Ludwig-Maximilians-Universität Munich, 82151 Martinsried, Germany
| | - Oksana Maksimenko
- Group of Molecular Organization of Genome, Department of the Control of Genetic Processes, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Catherine Regnard
- Molecular Biology Division, Biomedical Center, Faculty of Medicine and Center for Integrated Protein Science Munich (CIPSM), Ludwig-Maximilians-Universität Munich, 82151 Martinsried, Germany
| | - Peter B Becker
- Molecular Biology Division, Biomedical Center, Faculty of Medicine and Center for Integrated Protein Science Munich (CIPSM), Ludwig-Maximilians-Universität Munich, 82151 Martinsried, Germany
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16
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Schlenhoff A, Krause S, Wiesendanger R. Step-Edge-Induced Anisotropic Chiral Spin Coupling in Ultrathin Magnetic Films. Phys Rev Lett 2019; 123:037201. [PMID: 31386468 DOI: 10.1103/physrevlett.123.037201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Indexed: 06/10/2023]
Abstract
Step edges represent a local break of lateral symmetry in ultrathin magnetic films. In our experiments, we investigate the spin coupling across atomic step edges on Fe/W(110) by means of spin-polarized scanning tunneling microscopy and spectroscopy. Local modifications of the spin texture toward step edges separating double from single layer areas are observed, and selection rules indicate a chiral spin coupling that significantly changes with the propagation along the [11[over ¯]0] or the [001] crystallographic direction. The findings are explained via anisotropic Dzyaloshinskii-Moriya interactions arising from the broken lateral symmetry at atomic step edges.
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Affiliation(s)
- A Schlenhoff
- Department of Physics, University of Hamburg, Jungiusstrasse 11A, 20355 Hamburg, Germany
| | - S Krause
- Department of Physics, University of Hamburg, Jungiusstrasse 11A, 20355 Hamburg, Germany
| | - R Wiesendanger
- Department of Physics, University of Hamburg, Jungiusstrasse 11A, 20355 Hamburg, Germany
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17
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Krause S, Vosch T. Stokes shift microscopy by excitation and emission imaging. Opt Express 2019; 27:8208-8220. [PMID: 31052643 DOI: 10.1364/oe.27.008208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 03/02/2019] [Indexed: 06/09/2023]
Abstract
In this contribution, we present a new method, based on a tunable excitation laser source and a robust common path interferometer in the detection channel. Its purpose is to image spectral excitation and emission information on a monochrome complementary metal oxide semiconductor (CMOS) camera. This allows us to spatially obtain both excitation and emission spectra of the whole imaged area and create derived images such as red-green-blue (RGB), excitation and emission maxima, and Stokes shift images. Our presented method is a further development of hyperspectral imaging that usually is limited to recording spatially resolved emission spectra. Taking advantage of the full camera chip should speed up the acquisition versus line scan or pointwise hyperspectral imaging.
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18
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Gallardo-Gonzalez J, Baraket A, Boudjaoui S, Metzner T, Hauser F, Rößler T, Krause S, Zine N, Streklas A, Alcácer A, Bausells J, Errachid A. A fully integrated passive microfluidic Lab-on-a-Chip for real-time electrochemical detection of ammonium: Sewage applications. Sci Total Environ 2019; 653:1223-1230. [PMID: 30759562 DOI: 10.1016/j.scitotenv.2018.11.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/31/2018] [Accepted: 11/01/2018] [Indexed: 06/09/2023]
Abstract
The present work reports on the development of a new generation of Lab-on-a-chip (LOC) to perform in-situ and real-time potentiometric measurements in flowing water. The device consisted of two differentiated parts: a poly (dimethylsiloxane) (PDMS) microfluidic structure obtained by soft lithography and a fully integrated chemical sensing platform including four working microelectrodes, two reference microelectrodes and one counter microelectrode for detecting ammonium in a continuous mode. The performance of the device was evaluated following its potentiometric response when analyzing ammonium containing samples. As a key parameter, its time of response was compared to that of a commercially available electrical conductivity sensor used as reference sensor during tests in laboratory using flowing tap water and technical scale using flowing wastewater. As a result, the LOC showed a slope of 55 mV/decade, a limit of detection of 4·10-5 M and a time of full response between 10 and 12 s. It was demonstrated that the device can provide fast and reliable data at real time when immersed in a laminar flow of water. Moreover, the test of robustness showed that it was still functional after immersion in sewage for at least 15 min. Besides, the LOC reported here can be helpful for a wide variety of flowing-water applications such as aqua culture outlets control, in-situ and continuous analysis of rivers effluents and sea waters monitoring among others.
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Affiliation(s)
- J Gallardo-Gonzalez
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université de Lyon 1, ENS Lyon-5, 5 rue de la Doua, F-69100 Villeurbanne, France.
| | - A Baraket
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université de Lyon 1, ENS Lyon-5, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - S Boudjaoui
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université de Lyon 1, ENS Lyon-5, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - T Metzner
- University of Munich, Institute of Hydro Sciences, Sanitary Engineering and Waste Management, Werner-Heisenberg-Weg 39, D-85577 Neubiberg, Germany
| | - F Hauser
- Bundeskriminalamt, Forensic Science Institute, Wiesbaden, Germany
| | - T Rößler
- Bundeskriminalamt, Forensic Science Institute, Wiesbaden, Germany
| | - S Krause
- University of Munich, Institute of Hydro Sciences, Sanitary Engineering and Waste Management, Werner-Heisenberg-Weg 39, D-85577 Neubiberg, Germany
| | - N Zine
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université de Lyon 1, ENS Lyon-5, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - A Streklas
- Barcelona Microelectronics Institute IMB-CNM (CSIC), Bellaterra, Spain
| | - A Alcácer
- Barcelona Microelectronics Institute IMB-CNM (CSIC), Bellaterra, Spain
| | - J Bausells
- Barcelona Microelectronics Institute IMB-CNM (CSIC), Bellaterra, Spain
| | - A Errachid
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université de Lyon 1, ENS Lyon-5, 5 rue de la Doua, F-69100 Villeurbanne, France
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Krause S, Friedl T, Fehm T, Romashova T, Fasching PA, Schneeweiss A, Müller V, Taran FA, Polasik A, Tzschaschel M, De Gregorio A, Meier-Stiegen F, Janni W, Huober J. Abstract OT2-07-01: DETECT V/CHEVENDO – Comparison of dual HER2-targeted therapy with trastuzumab plus pertuzumab in combination with chemo- or endocrine therapy in addition with CDK4/6 inhibition in patients with HER2-positive and hormone-receptor positive metastatic breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-ot2-07-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background:
Metastatic breast cancer (MBC) is usually an incurable disease and maintenance of quality of life (QoL) is one of the main aims of therapy. In patients with HER2-positive MBC taxane-based chemotherapy in combination with dual HER2 targeted therapy with trastuzumab and pertuzumab,is the standard of care. Adverse events are well-known side effects of any cytostatic treatment and can seriously impact the patients' QoL. The synergistic combination of dual HER2-targeted therapy with trastuzumab and pertuzumab plus endocrine therapy might offer a better treatment option for these patients. First clinical trials suggest an additional benefit when a CDK4/6 inhibitor is added to the combination of endocrine therapy and anti HER2 treatment. DETECT V is a randomized phase III study comparing the safety and efficacy of trastuzumab plus pertuzumab and the CDK 4/6 inhibitor ribociclib in combination with either endocrine therapy or chemotherapy.
Trial design:
Patients with HER2 positive and hormone-receptor positive MBC are 1:1 randomized to receive trastuzumab and pertuzumab combined with endocrine therapy and ribociclib or to chemotherapy with trastuzumab and pertuzumab followed by maintenance therapy with trastuzumab, pertuzumab, endocrine therapy and ribociclib. Chemotherapy and the endocrine agents can be chosen from a variety of available regimens according to the physicians discretion.
Specific aims:
The primary objective of this study is to compare safety and tolerability in both arms, as assessed by the occurrence of AEs during the treatment period. Secondary endpoints are progression free survival, overall survival, quality-adjusted survival using the quality-adjusted time without symptoms and toxicity (Q-TWiST) method. A translational program is included investigating detection and phenotyping of circulating tumor cells (CTC)-and the assessment of marker expression on CTCs in order to validate an endocrine responsiveness score.
Present accrual and target accrual:
The DETECT V trial started 2015 in the Dept. of Gynecology, University of Ulm and at the up to 120 sites in Germany. Until June 2018 97 patients with HER2-positive, hormone-receptor positive metastatic breast cancer have been enrolled. A sample size of 270 patients is planned.
Contact information:
Jens Huober, University of Ulm, Dept of Gynecology, Breast Center, jens.huober@uniklinik-ulm.de
Sabrina Krause, University of Ulm, Dept of Gynecology, sabrina.krause@uniklinik-ulm.de
Citation Format: Krause S, Friedl T, Fehm T, Romashova T, Fasching PA, Schneeweiss A, Müller V, Taran F-A, Polasik A, Tzschaschel M, De Gregorio A, Meier-Stiegen F, Janni W, Huober J. DETECT V/CHEVENDO – Comparison of dual HER2-targeted therapy with trastuzumab plus pertuzumab in combination with chemo- or endocrine therapy in addition with CDK4/6 inhibition in patients with HER2-positive and hormone-receptor positive metastatic breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr OT2-07-01.
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Affiliation(s)
- S Krause
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - T Friedl
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - T Fehm
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - T Romashova
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - PA Fasching
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - A Schneeweiss
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - V Müller
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - F-A Taran
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - A Polasik
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - M Tzschaschel
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - A De Gregorio
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - F Meier-Stiegen
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - W Janni
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
| | - J Huober
- University Hospital Ulm, Ulm, Germany; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany; University Hospital Erlangen, Erlangen, Germany; National Center for Tumor Diseases and University Hospital Heidelberg, Heidelberg, Germany; University Hospital Hamburg-Eppendorf, Hamburg, Germany; University Hospital Tübingen, Tübingen, Germany
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20
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Krause S, Friedl T, Fehm T, Romashova T, Fasching P, Schneeweiss A, Müller V, Taran FA, Polasik A, Tzschaschel M, De Gregorio A, Meier-Stiegen F, Janni W, Huober J. DETECT V – Vergleich der HER2-zielgerichteten dualen Blockade plus Ribociclib in Kombination mit Chemotherapie oder endokriner Therapie bei Patientinnen mit HER2-positivem und HR-positivem metastasiertem Mammakarzinom. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1671369] [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] Open
Affiliation(s)
- S Krause
- Universitätsklinikum Ulm, Frauenklinik, Ulm, Deutschland
| | - T Friedl
- Universitätsklinikum Ulm, Frauenklinik, Ulm, Deutschland
| | - T Fehm
- Heinrich-Heine- Universität Düsseldorf, Frauenklinik, Düsseldorf, Deutschland
| | - T Romashova
- Universitätsklinikum Ulm, Frauenklinik, Ulm, Deutschland
| | - P Fasching
- Universitätsklinik Erlangen, Frauenklinik, Erlangen, Deutschland
| | - A Schneeweiss
- Universitätsfrauenklinik Heidelberg, Frauenklinik, Heidelberg, Deutschland
| | - V Müller
- Universitätsfrauenklinik Hamburg-Eppendorf, Frauenklinik, Hamburg, Deutschland
| | - FA Taran
- Universitätsfrauenklinik Tübingen, Frauenklinik, Tübingen, Deutschland
| | - A Polasik
- Universitätsklinikum Ulm, Frauenklinik, Ulm, Deutschland
| | - M Tzschaschel
- Universitätsklinikum Ulm, Frauenklinik, Ulm, Deutschland
| | - A De Gregorio
- Universitätsklinikum Ulm, Frauenklinik, Ulm, Deutschland
| | - F Meier-Stiegen
- Heinrich-Heine- Universität Düsseldorf, Frauenklinik, Düsseldorf, Deutschland
| | - W Janni
- Universitätsklinikum Ulm, Frauenklinik, Ulm, Deutschland
| | - J Huober
- Universitätsklinikum Ulm, Frauenklinik, Ulm, Deutschland
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21
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Rogez D, Krause S, Martinoty P. Main-chain liquid-crystal elastomers versus side-chain liquid-crystal elastomers: similarities and differences in their mechanical properties. Soft Matter 2018; 14:6449-6462. [PMID: 30035290 DOI: 10.1039/c8sm00936h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
After a general introduction on the main aspects of the mechanical properties of main-chain liquid-crystal elastomers (MCLCEs) and side-chain liquid-crystal elastomers (SCLCEs), new results will be presented dealing with several MCLCEs with a cross-linker density C = 8%, 6% and 4% and with a SCLCE with C = 10%, all prepared by the two-step cross-linking process. A non-SCLCE with bulky side-groups similar in shape to the mesogens was also synthesized for comparison with the SCLCE. Most of the experiments were performed with a piezorheometer allowing the determination of the shear anisotropy of the samples by applying shear in a direction parallel or perpendicular to the director, and with a thermo-elastic device for the E measurements. The main results concern: (a) the influence of the supercritical nature of SCLCE and the subcritical nature of MCLCEs on the mechanical properties of these elastomers, as well as that of SmC domains present in MCLCEs; (b) the relationship between the degrees of elongation and of anisotropy deduced from the variations of and during the poly-domain to mono-domain transition of the 10% SCLCE and the 8% MCLCE; (c) the determination of the Poisson's ratio showing that it is isotropic for the non-SCLCE, with a crossover between 0.5 (classical value for rubbers) for small strains and 0.38 for high strains, and anisotropic for the 10% SCLCE and 8% MCLCE, with values <0.5. The particular behaviors of the Poisson's ratios can be explained by confinement effects occurring when stretching increases.
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Affiliation(s)
- D Rogez
- Institut Charles Sadron, UPR 22, CNRS, 23 rue du Loess, 67034 Strasbourg Cedex 2, France.
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22
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Oschatz M, Krause S, Krans NA, Hernández Mejía C, Kaskel S, de Jong KP. Influence of precursor porosity on sodium and sulfur promoted iron/carbon Fischer-Tropsch catalysts derived from metal-organic frameworks. Chem Commun (Camb) 2018; 53:10204-10207. [PMID: 28857093 DOI: 10.1039/c7cc04877g] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iron-based metal-organic frameworks (MOFs) with varying porosity are converted by pyrolysis into iron/carbon catalysts with predetermined composition and tailored pore structural features for the Fischer-Tropsch synthesis of lower C2-C4 olefins. Significantly higher activity arises for catalysts with higher porosity and decreased iron particle size derived from hierarchical MOF xerogel/aerogel precursors as compared to a purely microporous MOF. Post-synthetic functionalization using sodium and sulfur promoters further enhances the catalytic properties.
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Affiliation(s)
- M Oschatz
- Utrecht University, Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands.
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Balz V, Krause S, Fischer J, Enczmann J. More than 150 novel variants of HLA class I genes detected in German Stem Cell Donor Registry and UCLA International Cell Exchange samples. HLA 2018; 91:187-194. [DOI: 10.1111/tan.13207] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 01/03/2018] [Accepted: 01/04/2018] [Indexed: 12/25/2022]
Affiliation(s)
- V. Balz
- Institute for Transplantation Diagnostics and Cell Therapeutics; University Hospital Düsseldorf; Düsseldorf Germany
| | - S. Krause
- Institute for Transplantation Diagnostics and Cell Therapeutics; University Hospital Düsseldorf; Düsseldorf Germany
| | - J. Fischer
- Institute for Transplantation Diagnostics and Cell Therapeutics; University Hospital Düsseldorf; Düsseldorf Germany
| | - J. Enczmann
- Institute for Transplantation Diagnostics and Cell Therapeutics; University Hospital Düsseldorf; Düsseldorf Germany
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24
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Krause S, Reichert S, Donandt T, Kalbe C, Schmuck M, Klymiuk N, Kessler B, Blutke A, Wolf E, Schoser B, Walter M. Molecular therapy in a novel translational large animal model for Duchenne muscular dystrophy. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Walter M, Reilich P, Krause S, Abicht A, Schoser B. Congenital centronuclear myopathy and epidermolysis bullosa due to two novel mutations in the plectin gene. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Krause J, Herbert-Read JE, Seebacher F, Domenici P, Wilson ADM, Marras S, Svendsen MBS, Strömbom D, Steffensen JF, Krause S, Viblanc PE, Couillaud P, Bach P, Sabarros PS, Zaslansky P, Kurvers RHJM. Injury-mediated decrease in locomotor performance increases predation risk in schooling fish. Philos Trans R Soc Lond B Biol Sci 2017; 372:20160232. [PMID: 28673910 PMCID: PMC5498294 DOI: 10.1098/rstb.2016.0232] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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] [Accepted: 02/06/2017] [Indexed: 11/12/2022] Open
Abstract
The costs and benefits of group living often depend on the spatial position of individuals within groups and the ability of individuals to occupy preferred positions. For example, models of predation events for moving prey groups predict higher mortality risk for individuals at the periphery and front of groups. We investigated these predictions in sardine (Sardinella aurita) schools under attack from group hunting sailfish (Istiophorus platypterus) in the open ocean. Sailfish approached sardine schools about equally often from the front and rear, but prior to attack there was a chasing period in which sardines attempted to swim away from the predator. Consequently, all sailfish attacks were directed at the rear and peripheral positions of the school, resulting in higher predation risk for individuals at these positions. During attacks, sailfish slash at sardines with their bill causing prey injury including scale removal and tissue damage. Sardines injured in previous attacks were more often found in the rear half of the school than in the front half. Moreover, injured fish had lower tail-beat frequencies and lagged behind uninjured fish. Injuries inflicted by sailfish bills may, therefore, hinder prey swimming speed and drive spatial sorting in prey schools through passive self-assortment. We found only partial support for the theoretical predictions from current predator-prey models, highlighting the importance of incorporating more realistic predator-prey dynamics into these models.This article is part of the themed issue 'Physiological determinants of social behaviour in animals'.
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Affiliation(s)
- J Krause
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany
- Albrecht Daniel Thaer-Institute, Faculty of Life Sciences, Humboldt-Universität zu Berlin, Invalidenstrasse 42, 10115 Berlin, Germany
| | - J E Herbert-Read
- Department of Mathematics, Uppsala University, Uppsala, Sweden
- Department of Zoology, Stockholm University, Stockholm, Sweden
| | - F Seebacher
- School of Life and Environmental Sciences, University of Sydney, Sydney, New South Wales 2006, Australia
| | - P Domenici
- IAMC-CNR, Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Località Sa Mardini, 09170 Torregrande, Oristano, Italy
| | - A D M Wilson
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany
- Department of Zoology, Stockholm University, Stockholm, Sweden
| | - S Marras
- IAMC-CNR, Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Località Sa Mardini, 09170 Torregrande, Oristano, Italy
| | - M B S Svendsen
- Marine Biological Section, University of Copenhagen, Strandpromenaden 5, 3000 Helsingør, Denmark
| | - D Strömbom
- Department of Mathematics, Uppsala University, Uppsala, Sweden
- Department of Biology, Lafayette College, Easton, 18042 PA, USA
| | - J F Steffensen
- Marine Biological Section, University of Copenhagen, Strandpromenaden 5, 3000 Helsingør, Denmark
| | - S Krause
- Department of Electrical Engineering and Computer Science, Lübeck University of Applied Sciences, 23562 Lübeck, Germany
| | - P E Viblanc
- Albrecht Daniel Thaer-Institute, Faculty of Life Sciences, Humboldt-Universität zu Berlin, Invalidenstrasse 42, 10115 Berlin, Germany
| | - P Couillaud
- Département de la Licence Sciences et Technologies, Université Pierre et Marie Curie, 4 place Jussieu, 75005 Paris, France
| | - P Bach
- Institut de Recherche pour le Développement, UMR 248 MARBEC, Ob7, Avenue Jean Monnet, CS 30171, 34203 Sète Cedex, France
| | - P S Sabarros
- Institut de Recherche pour le Développement, UMR 248 MARBEC, Ob7, Avenue Jean Monnet, CS 30171, 34203 Sète Cedex, France
| | - P Zaslansky
- Julius Wolff Institute for Biomechanics and Musculoskeletal Regeneration, Charité - Universitätsmedizin Berlin, Philippstraße 13, Haus 11, 10115 Berlin, Germany
| | - R H J M Kurvers
- Department of Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, 12587 Berlin, Germany
- Center for Adaptive Rationality, Max Planck Institute for Human Development, Lentzeallee 94, 14195 Berlin, Germany
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Hehlmann R, Lauseker M, Saußele S, Pfirrmann M, Krause S, Kolb HJ, Neubauer A, Hossfeld DK, Nerl C, Gratwohl A, Baerlocher GM, Heim D, Brümmendorf TH, Fabarius A, Haferlach C, Schlegelberger B, Müller MC, Jeromin S, Proetel U, Kohlbrenner K, Voskanyan A, Rinaldetti S, Seifarth W, Spieß B, Balleisen L, Goebeler MC, Hänel M, Ho A, Dengler J, Falge C, Kanz L, Kremers S, Burchert A, Kneba M, Stegelmann F, Köhne CA, Lindemann HW, Waller CF, Pfreundschuh M, Spiekermann K, Berdel WE, Müller L, Edinger M, Mayer J, Beelen DW, Bentz M, Link H, Hertenstein B, Fuchs R, Wernli M, Schlegel F, Schlag R, de Wit M, Trümper L, Hebart H, Hahn M, Thomalla J, Scheid C, Schafhausen P, Verbeek W, Eckart MJ, Gassmann W, Pezzutto A, Schenk M, Brossart P, Geer T, Bildat S, Schäfer E, Hochhaus A, Hasford J. Assessment of imatinib as first-line treatment of chronic myeloid leukemia: 10-year survival results of the randomized CML study IV and impact of non-CML determinants. Leukemia 2017; 31:2398-2406. [PMID: 28804124 PMCID: PMC5668495 DOI: 10.1038/leu.2017.253] [Citation(s) in RCA: 185] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 07/04/2017] [Indexed: 01/06/2023]
Abstract
Chronic myeloid leukemia (CML)-study IV was designed to explore whether treatment with imatinib (IM) at 400 mg/day (n=400) could be optimized by doubling the dose (n=420), adding interferon (IFN) (n=430) or cytarabine (n=158) or using IM after IFN-failure (n=128). From July 2002 to March 2012, 1551 newly diagnosed patients in chronic phase were randomized into a 5-arm study. The study was powered to detect a survival difference of 5% at 5 years. After a median observation time of 9.5 years, 10-year overall survival was 82%, 10-year progression-free survival was 80% and 10-year relative survival was 92%. Survival between IM400 mg and any experimental arm was not different. In a multivariate analysis, risk group, major-route chromosomal aberrations, comorbidities, smoking and treatment center (academic vs other) influenced survival significantly, but not any form of treatment optimization. Patients reaching the molecular response milestones at 3, 6 and 12 months had a significant survival advantage. For responders, monotherapy with IM400 mg provides a close to normal life expectancy independent of the time to response. Survival is more determined by patients' and disease factors than by initial treatment selection. Although improvements are also needed for refractory disease, more life-time can currently be gained by carefully addressing non-CML determinants of survival.
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Affiliation(s)
- R Hehlmann
- III. Medizinische Klinik, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | - M Lauseker
- IBE, Universität München, Munich, Germany
| | - S Saußele
- III. Medizinische Klinik, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | | | - S Krause
- Medizinische Klinik 5, Universitätsklinikum, Erlangen, Germany
| | - H J Kolb
- Medizinische Klinik III, Universität München, Munich, Germany
| | - A Neubauer
- Klinik für innere Medizin, Universitätsklinikum, Marburg, Germany
| | - D K Hossfeld
- 2. Medizinische Klinik, Universitätsklinikum Eppendorf, Hamburg, Germany
| | - C Nerl
- Klinikum Schwabing, Munich, Germany
| | | | | | - D Heim
- Universitätsspital, Basel, Switzerland
| | | | - A Fabarius
- III. Medizinische Klinik, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | | | | | - M C Müller
- III. Medizinische Klinik, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | | | - U Proetel
- III. Medizinische Klinik, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | - K Kohlbrenner
- III. Medizinische Klinik, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | - A Voskanyan
- III. Medizinische Klinik, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | - S Rinaldetti
- III. Medizinische Klinik, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | - W Seifarth
- III. Medizinische Klinik, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | - B Spieß
- III. Medizinische Klinik, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | | | - M C Goebeler
- Medizinische Klinik und Poliklinik, Universitätsklinikum, Würzburg, Germany
| | - M Hänel
- Klinik für innere Medizin 3, Chemnitz, Germany
| | - A Ho
- Medizinische Klinik V, Universität Heidelberg, Heidelberg, Germany
| | - J Dengler
- Onkologische Schwerpunktpraxis, Heilbronn, Germany
| | - C Falge
- Medizinische Klinik 5, Klinikum Nürnberg-Nord, Nürnberg, Germany
| | - L Kanz
- Medizinische Abteilung 2, Universitätsklinikum, Tübingen, Germany
| | - S Kremers
- Caritas Krankenhaus, Lebach, Germany
| | - A Burchert
- Klinik für innere Medizin, Universitätsklinikum, Marburg, Germany
| | - M Kneba
- 2. Medizinische Klinik und Poliklinik, Universitätsklinikum Schleswig-Holstein, Kiel, Germany
| | - F Stegelmann
- Klinik für Innere Medizin 3, Universitätsklinikum, Ulm, Germany
| | - C A Köhne
- Klinik für Onkologie und Hämatologie, Oldenburg, Germany
| | | | - C F Waller
- Innere Medizin 1, Universitätsklinikum, Freiburg, Germany
| | - M Pfreundschuh
- Klinik für Innere Medizin 1, Universität des Saarlandes, Homburg, Germany
| | - K Spiekermann
- Medizinische Klinik III, Universität München, Munich, Germany
| | - W E Berdel
- Medizinische Klinik A, Universitätsklinikum, Münster, Germany
| | - L Müller
- Onkologie Leer UnterEms, Leer, Germany
| | - M Edinger
- Klinik und Poliklinik für Innere Medizin 3, Universitätsklinikum, Regensburg, Germany
| | - J Mayer
- Masaryk University Hospital, Brno, Czech Republic
| | - D W Beelen
- Klinik für Knochenmarktransplantation, Essen, Germany
| | - M Bentz
- Medizinische Klinik 3, Städtisches Klinikum, Karlsruhe, Germany
| | - H Link
- Klinik für Innere Medizin 3, Westpfalz-Klinikum, Kaiserslautern, Germany
| | - B Hertenstein
- 1. Medizinische Klinik, Klinikum Bremen Mitte, Bremen, Germany
| | | | - M Wernli
- Kantonsspital, Aarau, Switzerland
| | - F Schlegel
- St Antonius-Hospital, Eschweiler, Germany
| | - R Schlag
- Hämatologische-Onkologische Schwerpunktpraxis, Würzburg, Germany
| | - M de Wit
- Vivantes Klinikum Neukölln, Berlin, Germany
| | - L Trümper
- Klinik für Hämatologie und medizinische Onkologie, Universitätsmedizin, Göttingen, Germany
| | - H Hebart
- Stauferklinikum Schwäbisch Gmünd, Mutlangen, Germany
| | - M Hahn
- Onkologie Zentrum, Ansbach, Germany
| | - J Thomalla
- Praxisklinik für Hämatologie und Onkologie, Koblenz, Germany
| | - C Scheid
- Klinik 1 für Innere Medizin, Universitätsklinikum, Köln, Germany
| | - P Schafhausen
- 2. Medizinische Klinik, Universitätsklinikum Eppendorf, Hamburg, Germany
| | - W Verbeek
- Ambulante Hämatologie und Onkologie, Bonn, Germany
| | - M J Eckart
- Internistische Schwerpunktpraxis, Erlangen, Germany
| | | | | | - M Schenk
- Barmherzige Brüder, Regensburg, Germany
| | - P Brossart
- Medizinische Klinik 3, Universität, Bonn, Germany
| | - T Geer
- Diakonie, Schwäbisch Hall, Germany
| | - S Bildat
- Medizinische Klinik 2, Herford, Germany
| | - E Schäfer
- Onkologische Schwerpunktpraxis, Bielefeld, Germany
| | - A Hochhaus
- Klinik für Innere Medizin 2, Universitätsklinikum, Jena, Germany
| | - J Hasford
- IBE, Universität München, Munich, Germany
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Schury K, Koenig AM, Isele D, Hulbert AL, Krause S, Umlauft M, Kolassa S, Ziegenhain U, Karabatsiakis A, Reister F, Guendel H, Fegert JM, Kolassa IT. Alterations of hair cortisol and dehydroepiandrosterone in mother-infant-dyads with maternal childhood maltreatment. BMC Psychiatry 2017; 17:213. [PMID: 28587668 PMCID: PMC5461775 DOI: 10.1186/s12888-017-1367-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 05/19/2017] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Child maltreatment (CM) has severe effects on psychological and physical health. The hypothalamic-pituitary-adrenal (HPA) axis, the major stress system of the body, is dysregulated after CM. The analysis of cortisol and dehydroepiandrosterone (DHEA) in scalp hair presents a new and promising methodological approach to assess chronic HPA axis activity. This study investigated the effects of CM on HPA axis activity in the last trimester of pregnancy by measuring the two important signaling molecules, cortisol and DHEA in hair, shortly after parturition. In addition, we explored potential effects of maternal CM on her offspring's endocrine milieu during pregnancy by measuring cortisol and DHEA in newborns' hair. METHODS CM was assessed with the Childhood Trauma Questionnaire (CTQ). Cortisol and DHEA were measured in hair samples of 94 mothers and 30 newborns, collected within six days after delivery. Associations of maternal CM on her own and her newborn's cortisol as well as DHEA concentrations in hair were analyzed with heteroscedastic regression models. RESULTS Higher CM was associated with significantly higher DHEA levels, but not cortisol concentrations in maternal hair. Moreover, maternal CM was positively, but only as a non-significant trend, associated with higher DHEA levels in the newborns' hair. CONCLUSIONS Results suggest that the steroid milieu of the mother, at least on the level of DHEA, is altered after CM, possibly leading to non-genomic transgenerational effects on the developing fetus in utero. Indeed, we observed on an explorative level first hints that the endocrine milieu for the developing child might be altered in CM mothers. These results need extension and replication in future studies. The measurement of hair steroids in mothers and their newborns is promising, but more research is needed to better understand the effects of a maternal history of CM on the developing fetus.
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Affiliation(s)
- K. Schury
- 0000 0004 1936 9748grid.6582.9Clinical and Biological Psychology, Institute of Psychology and Education, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany ,grid.410712.1Department of Child and Adolscent Psychiatry and Psychotherapy, University Hospital Ulm, 89075 Ulm, Germany
| | - A. M. Koenig
- 0000 0004 1936 9748grid.6582.9Clinical and Biological Psychology, Institute of Psychology and Education, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany
| | - D. Isele
- 0000 0001 0658 7699grid.9811.1Department of Psychology, University of Konstanz and vivo international, 78457 Konstanz, Germany
| | - A. L. Hulbert
- 0000 0004 1936 9748grid.6582.9Clinical and Biological Psychology, Institute of Psychology and Education, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany ,grid.410712.1Department of Psychosomatic Medicine and Psychotherapy, University Hospital Ulm, 89081 Ulm, Germany
| | - S. Krause
- grid.410712.1Department of Psychosomatic Medicine and Psychotherapy, University Hospital Ulm, 89081 Ulm, Germany
| | - M. Umlauft
- 0000 0004 1936 9748grid.6582.9Institute of Statistics, Ulm University, 89081 Ulm, Germany
| | - S. Kolassa
- SAP Switzerland, 8274 Tägerwilen, Switzerland
| | - U. Ziegenhain
- grid.410712.1Department of Child and Adolscent Psychiatry and Psychotherapy, University Hospital Ulm, 89075 Ulm, Germany
| | - A. Karabatsiakis
- 0000 0004 1936 9748grid.6582.9Clinical and Biological Psychology, Institute of Psychology and Education, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany
| | - F. Reister
- grid.410712.1Department of Obstetrics and Gynecology, University Hospital Ulm, 89075 Ulm, Germany
| | - H. Guendel
- grid.410712.1Department of Psychosomatic Medicine and Psychotherapy, University Hospital Ulm, 89081 Ulm, Germany
| | - J. M. Fegert
- grid.410712.1Department of Child and Adolscent Psychiatry and Psychotherapy, University Hospital Ulm, 89075 Ulm, Germany
| | - I.-T. Kolassa
- 0000 0004 1936 9748grid.6582.9Clinical and Biological Psychology, Institute of Psychology and Education, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany
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Kari F, Wittmann K, Krause S, Saravi B, Puttfarcken L, Förster K, Rylski B, Maier S, Göbel U, Siepe M, Czerny M, Beyersdorf F. New Insights into Spinal Cord Ischemia after Thoracic Aortic Procedures: The Importance of Anterior Radiculo-Medullary Artery Anatomy for Surgical Outcome. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598779] [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)
- F.A. Kari
- Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
| | - K. Wittmann
- Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
| | - S. Krause
- Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
| | - B.E. Saravi
- Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
| | - L. Puttfarcken
- Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
| | - K. Förster
- Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
| | - B. Rylski
- Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
| | - S. Maier
- Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
| | - U. Göbel
- Anesthesiology and Intensive Care, University Medical Center Freiburg, Freiburg, Germany
| | - M. Siepe
- Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
| | - M. Czerny
- Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
| | - F. Beyersdorf
- Cardiovascular Surgery, Heart Center Freiburg University, Freiburg, Germany
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Lubenchenko A, Batrakov A, Pavolotsky A, Krause S, Shurkaeva I, Lubenchenko O, Ivanov D. An XPS method for layer profiling of NbN thin films. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201713203053] [Citation(s) in RCA: 2] [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: 11/14/2022] Open
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Bhattarai S, Ghannam K, Krause S, Martinez-Gamboa L, Marg A, Spuler S, Benveniste O, Stenzel W, Feist E. SAT0188 Skeletal Muscle Fibers in Myositis Actively Upregulate Immunoproteasome Subunits. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2858] [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: 11/04/2022]
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Ried M, Braess J, Krause S, Allgäuer M, Szöke T, Hofmann HS. Die multimodale Therapie des Bronchialkarzinoms im Stadium IIIA – unter der besonderen Berücksichtigung der chirurgischen Resektion. Pneumologie 2016. [DOI: 10.1055/s-0036-1572113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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33
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Kari F, Wittmann K, Saravi B, Puttfarcken L, Förster K, Krause S, Maier S, Beyersdorf F. Immediate Spinal Cord Backup Flow during Frozen Elephant Trunk Procedure: Intraspinal or Paraspinal System? Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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De Wit M, De Geeter P, Galli L, Hegele A, Schrader M, Schenck M, Vom Dorp F, Bolten M, Fahlenkamp D, Hampel C, Krause S, Riggi M, Fougeray R, De Almeida C, Edlich B, Pichler A. 2640 Vinflunine maintenance treatment following first-line therapy of advanced urothelial carcinoma - results from the JASiMA trial. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31457-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hartmann JT, Issels RD, Nicolo KS, Grünwald V, Hertenstein B, Papesch E, Krause S, Sturm I. Topotecan plus cyclophosphamide in adults with relapsed or refractory pediatric-type sarcoma: a retrospective analysis from the German Sarcoma Medical Oncology Group (AIO). Invest New Drugs 2015; 33:1115-22. [PMID: 26163339 DOI: 10.1007/s10637-015-0267-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 06/19/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND To assess the efficacy and safety of topotecan and cyclophosphamide (TC) in adult patients with pediatric-type sarcoma subtypes who failed induction chemotherapy. PATIENTS AND METHODS Patients with pediatric sarcoma subtypes, refractory to or relapsed after at least one prior induction chemotherapy, inoperable, ECOG PS 0-2, with measurable, progressive disease (PD), adequate organ functions, who have been treated with TC combination were retrospectively analysed within the AIO and SAREZ/BMBF network. RESULTS Thirty-nine patients, median age 28 years (18-58), 14 females, 25 males, have been identified. All patients had received induction treatment according to (inter)national study protocols. Second-line TC was applied in 33 patients (≥3rd-line in 6 patients). Twenty-three patients had refractory disease (evidence of PD during induction chemotherapy); 8 patients experienced an early relapse within 6 months as well as 8 patients after more than 24 months (late relapse). A median of 3 cycles (range, 1-6) had been applied and antitumor activity was: CR 2.6 %, PR 7.9 %, and disease stabilisation (SD) 26.3 %. PR lasted 32.8 months and median duration in patients with SD was 5 months (range, 2.0-14.7). The 3/6-months progression-free rates were 43.2 and 18.9 %. CONCLUSIONS Limited activity was seen in adult pts with refractory or relapsed pediatric-type sarcomas with the regimen which has proven activity in pediatric patients. Adults with refractory small cell sarcoma appear to have a similar dismal outcome as seen in pts with common adult-type histologies; however, a subset of patients has achieved long-lasting remissions on TC resulting in long-term survival.
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Affiliation(s)
- Jörg Thomas Hartmann
- Clinic for Internal Medicine II, Hematology, Oncology, Immunology, Catholic Hospital Consortium, Franziskus Hospital Bielefeld, Kiskerstrasse 26, Bielefeld, 33615, Germany.
| | - R D Issels
- Department of Hematology and Oncology, University of Munich Medical Center, München, Germany
| | - K San Nicolo
- Department of Hematology and Medical Oncology, University Hospital of Erlangen, Erlangen, Germany
| | - V Grünwald
- Department of Hematology, Hemostaseology, Oncology, and Stem Sell Transplantation, Medical University of Hannover, Hannover, Germany
| | - B Hertenstein
- Department of Hematology and Oncology, Medical Center of Bremen-Mitte gGmbH, Bremen, Germany
| | - E Papesch
- Department of Hematology, Medical Oncology and Pneumonology, University Hospital of Mainz, Mainz, Germany
| | - S Krause
- Department of Hematology and Medical Oncology, University Hospital of Erlangen, Erlangen, Germany
| | - I Sturm
- Department of Hematology, Oncology and Tumor Immunology, Charité - University Hospital Berlin, Campus Virchow-Klinikum, Berlin, Germany
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Schreiber O, Krause S, Thiele S, Kiel M, Vorgerd M, Schmidt J, Walter M. G.P.256. Neuromuscul Disord 2014. [DOI: 10.1016/j.nmd.2014.06.332] [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: 10/24/2022]
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Sonntag A, Hermenau J, Krause S, Wiesendanger R. Thermal stability of an interface-stabilized skyrmion lattice. Phys Rev Lett 2014; 113:077202. [PMID: 25170729 DOI: 10.1103/physrevlett.113.077202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Indexed: 06/03/2023]
Abstract
The thermal stability of the magnetic nano-skyrmion lattice in the monolayer Fe/Ir(111) is investigated using temperature dependent spin-polarized scanning tunneling microscopy. Our experiments show that the skyrmion lattice disappears at a temperature of T_{c}=27.8 K, indicating a loss of long-range magnetic order. At second-layer iron islands the lattice is pinned and local order persists at temperatures above T_{c}. The findings are explained in terms of the complex magnetic interactions involved in the formation of the skyrmion lattice.
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Affiliation(s)
- A Sonntag
- Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - J Hermenau
- Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - S Krause
- Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - R Wiesendanger
- Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
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38
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Ghannam K, Martinez Gamboa L, Spengler L, Krause S, Smiljanovic B, Bonin M, Grützkau A, Burmester GR, Häupl T, Feist E. OP0131 Upregulation of Immunoproteasome Subunits PSMB8 and PSMB9 in Myositis Indicates Active Inflammation with Involvement of Antigen Presenting Cells, CD8+ T-Cells and IFN Gamma. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3161] [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: 11/04/2022]
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39
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Alsadeq A, Strube S, Krause S, Carlet M, Jeremias I, Vokuhl C, Loges S, Aguirre-Ghiso JA, Cario G, Stanulla M, Schrappe M, Schewe DM. Regulating the activity of p38α/β as a potential therapy against childhood acute lymphoblastic leukemia. Klin Padiatr 2014. [DOI: 10.1055/s-0034-1374829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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40
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D'Orlando O, Puff R, Henniger A, Krause S, Haupt F, Kühn D, Winkler C, Bonifacio E, Ziegler AG. Immune status is associated with the mode of delivery in infants at increased risk for Type 1 Diabetes. DIABETOL STOFFWECHS 2014. [DOI: 10.1055/s-0034-1374887] [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]
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Krause S, van Bodegom PM, Cornwell WK, Bodelier PLE. Weak phylogenetic signal in physiological traits of methane-oxidizing bacteria. J Evol Biol 2014; 27:1240-7. [DOI: 10.1111/jeb.12401] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 04/01/2014] [Accepted: 04/04/2014] [Indexed: 11/29/2022]
Affiliation(s)
- S. Krause
- Department of Microbial Ecology; Netherlands Institute of Ecology (NIOO-KNAW); Wageningen The Netherlands
- Department of Chemical Engineering; University of Washington; Seattle WA USA
| | - P. M. van Bodegom
- Department of Ecological Sciences; Subdepartment of Systems Ecology; VU University of Amsterdam; Amsterdam The Netherlands
| | - W. K. Cornwell
- Department of Ecological Sciences; Subdepartment of Systems Ecology; VU University of Amsterdam; Amsterdam The Netherlands
| | - P. L. E. Bodelier
- Department of Microbial Ecology; Netherlands Institute of Ecology (NIOO-KNAW); Wageningen The Netherlands
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Domenici P, Wilson ADM, Kurvers RHJM, Marras S, Herbert-Read JE, Steffensen JF, Krause S, Viblanc PE, Couillaud P, Krause J. How sailfish use their bills to capture schooling prey. Proc Biol Sci 2014; 281:20140444. [PMID: 24759865 DOI: 10.1098/rspb.2014.0444] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [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: 11/12/2022] Open
Abstract
The istiophorid family of billfishes is characterized by an extended rostrum or 'bill'. While various functions (e.g. foraging and hydrodynamic benefits) have been proposed for this structure, until now no study has directly investigated the mechanisms by which billfishes use their rostrum to feed on prey. Here, we present the first unequivocal evidence of how the bill is used by Atlantic sailfish (Istiophorus albicans) to attack schooling sardines in the open ocean. Using high-speed video-analysis, we show that (i) sailfish manage to insert their bill into sardine schools without eliciting an evasive response and (ii) subsequently use their bill to either tap on individual prey targets or to slash through the school with powerful lateral motions characterized by one of the highest accelerations ever recorded in an aquatic vertebrate. Our results demonstrate that the combination of stealth and rapid motion make the sailfish bill an extremely effective feeding adaptation for capturing schooling prey.
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Affiliation(s)
- P Domenici
- IAMC-CNR, Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, , Località Sa Mardini, 09170 Torregrande, Oristano, Italy, Department of Biology and Ecology of Fishes, Leibniz Institute of Freshwater Ecology and Inland Fisheries, , Mueggelseedamm 310, 12587 Berlin, Germany, Department of Mathematics, University of Uppsala, , Uppsala, Sweden, Department of Ecology and Genetics, University of Uppsala, , Uppsala, Sweden, Marine Biological Section, University of Copenhagen, Strandpromenaden 5, , 3000 Helsingør, Denmark, Department of Electrical Engineering and Computer Science, Lübeck University of Applied Sciences, , 23562 Lübeck, Germany, Faculty of Life Sciences, Humboldt-Universität zu Berlin, , Invalidenstrasse 42, 10115 Berlin, Germany, Département de la Licence Sciences et Technologies, Université Pierre et Marie Curie, , 4 place Jussieu, 75005 Paris, France, Department of Biology, Carleton University, , 1125 Colonel By Drive, Ottawa, Ontario, Canada
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Philbey AW, Krause S, Jefferies R. Verminous pneumonia and enteritis due to hyperinfection with Aelurostrongylus abstrusus in a kitten. J Comp Pathol 2014; 150:357-60. [PMID: 24679855 DOI: 10.1016/j.jcpa.2014.02.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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: 10/26/2013] [Revised: 11/22/2013] [Accepted: 02/02/2014] [Indexed: 11/19/2022]
Abstract
Severe infestation with Aelurostrongylus abstrusus was identified in the lungs and small intestine of a 2-month-old kitten that died due to verminous pneumonia and enteritis. On clinical examination, the kitten had dyspnoea, pneumonia, pleural effusion, ascites and diarrhoea. An interstitial pattern was evident radiographically in the lungs. The kitten died before treatment could be instituted. On gross and histopathological examination, there was severe interstitial pneumonia and large numbers of A. abstrusus eggs and larvae were present in alveoli, together with fewer adult nematodes in small bronchioles. The mucosa of the small intestine was invaded by large numbers of A. abstrusus larvae. The findings were consistent with a hyperinfection syndrome due to A. abstrusus.
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Affiliation(s)
- A W Philbey
- Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Edinburgh EH25 9RG, UK.
| | - S Krause
- Just Cats Veterinary Surgery, 57-59 Duke Street, Southport, Merseyside PR8 5B, UK
| | - R Jefferies
- School of Veterinary Sciences, University of Bristol, Langford, Bristol BS40 5DU, UK
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Sonntag A, Hermenau J, Schlenhoff A, Friedlein J, Krause S, Wiesendanger R. Electric-field-induced magnetic anisotropy in a nanomagnet investigated on the atomic scale. Phys Rev Lett 2014; 112:017204. [PMID: 24483926 DOI: 10.1103/physrevlett.112.017204] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Indexed: 06/03/2023]
Abstract
Magnetoelectric coupling is studied using the electric field between the tip of a spin-polarized scanning tunneling microscope and a nanomagnet. Our experiments show that a negative (positive) electric field stabilizes (destabilizes) in-plane magnetization against thermal agitation, whereas it destabilizes (stabilizes) out-of-plane magnetization. We conclude that the electric field E induces a uniaxial anisotropy that favors in-plane magnetization for E<0 and out-of-plane magnetization for E>0. Our experiments demonstrate magnetic manipulation on the atomic scale without exploiting spin or charge currents.
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Affiliation(s)
- A Sonntag
- Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - J Hermenau
- Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - A Schlenhoff
- Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - J Friedlein
- Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - S Krause
- Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
| | - R Wiesendanger
- Institute of Applied Physics and Interdisciplinary Nanoscience Center Hamburg, University of Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany
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Berndt C, Feseker T, Treude T, Krastel S, Liebetrau V, Niemann H, Bertics VJ, Dumke I, Dunnbier K, Ferre B, Graves C, Gross F, Hissmann K, Huhnerbach V, Krause S, Lieser K, Schauer J, Steinle L. Temporal Constraints on Hydrate-Controlled Methane Seepage off Svalbard. Science 2014; 343:284-7. [DOI: 10.1126/science.1246298] [Citation(s) in RCA: 191] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Blutke A, Klymiuk N, Graf A, Krause S, Burkhardt K, Wuensch A, Krebs S, Kessler B, Zakhartchenko V, Kurome M, Kemter E, Nagashima H, Schoser B, Herbach N, Blum H, Wanke R, Thirion C, Lochmüller H, Walter M, Wolf E. Generation and Characterization of a Porcine Model of Duchenne Muscular Dystrophy. J Comp Pathol 2014. [DOI: 10.1016/j.jcpa.2013.11.017] [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: 11/25/2022]
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Ghannam K, Martinez Gamboa L, Naumann L, Krause S, Fettke M, Burmester G, Feist E. THU0252 Immunoproteasome subunits are up-regulated in inflammatory myopathies. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2217] [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: 11/04/2022]
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Strube S, Krause S, Stanulla M, Schrappe M, Schewe D. p38α/β inhibition prevents ALL proliferation in vivo. Klin Padiatr 2013. [DOI: 10.1055/s-0033-1343634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Krause S, Strube S, Stanulla M, Schrappe M, Schewe D. TGF-β signaling causes ALL quiescence. Klin Padiatr 2013. [DOI: 10.1055/s-0033-1343632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Krause S, Beck S, Schramm O, Schubert K, Hauswald H, Zabel-du Bois A, Herfarth K, Debus J, Sterzing F. Tomotherapy radiosurgery for arteriovenous malformations--current possibilities and future options with helical tomotherapy dynamic jaws? Technol Cancer Res Treat 2013; 12:421-8. [PMID: 23547977 PMCID: PMC4527481 DOI: 10.7785/tcrt.2012.500335] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This planning study was performed to compare stereotactic linac based radiosurgery of Arteriovenous Malformations (AVM) with current Helical Tomotherapy (HT) and future HT techniques. For 10 patients with AVM, dose distributions and treatment times of “regular” HT delivery (Reg 2.5/1/0.6 cm field width), Running-Start-Stop Treatment (RSS 5/2.5 cm), Axial Mode (Axial 5 cm) and Dynamic Jaw/Dynamic Couch delivery with a maximum field width of 5 cm (DJDC 5) were analysed and compared to linac-based stereotactic radiosurgery. Axial produced the fastest treatment (Axial 4:47 min vs. Linac 32:42 min) at the cost of large brain exposure (V10% 289 ml). Except for Reg 0.6, all other HT techniques achieved significantly shorter treatment times than linac-based treatment (e.g. Reg 1, 19:42 min, DJDC 6:30 min). However, high-dose brain exposure (V60%) was higher in all HT plans (e.g. Reg 0.6, 10 ml, Linac 9 ml), and only Reg 0.6 showed better low-dose exposure (V10% of 167 ml vs. 199 ml, not significant). Neither current nor future HT modes in their current version outperformed linac-based stereotactic radiosurgery. However, AVM with special geometry might still benefit from HT.
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Affiliation(s)
- S Krause
- Department of Radiation Oncology, University Hospital of Heidelberg, INF 400, 69120 Heidelberg, Germany.
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