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Gauer C, Battis K, Schneider Y, Florio JB, Mante M, Kim HY, Rissman RA, Hoffmann A, Winkler J. CSF1R-mediated myeloid cell depletion shifts the ratio of motor cortical excitatory to inhibitory neurons in a multiple system atrophy model. Exp Neurol 2024; 374:114706. [PMID: 38311020 DOI: 10.1016/j.expneurol.2024.114706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/28/2024] [Indexed: 02/06/2024]
Abstract
Motor cortical circuit functions depend on the coordinated fine-tuning of two functionally diverse neuronal populations: glutamatergic pyramidal neurons providing synaptic excitation and GABAergic interneurons adjusting the response of pyramidal neurons through synaptic inhibition. Microglia are brain resident macrophages which dynamically refine cortical circuits by monitoring perineuronal extracellular matrix and remodelling synapses. Previously, we showed that colony-stimulating factor 1 receptor (CSF1R)-mediated myeloid cell depletion extended the lifespan, but impaired motor functions of MBP29 mice, a mouse model for multiple system atrophy. In order to better understand the mechanisms underlying these motor deficits we characterized the microglial involvement in the cortical balance of GABAergic interneurons and glutamatergic pyramidal neurons in 4-months-old MBP29 mice following CSF1R inhibition for 12 weeks. Lack of myeloid cells resulted in a decreased number of COUP TF1 interacting protein 2-positive (CTIP2+) layer V pyramidal neurons, however in a proportional increase of calretinin-positive GABAergic interneurons in MBP29 mice. While myeloid cell depletion did not alter the expression of important presynaptic and postsynaptic proteins, the loss of cortical perineuronal net area was attenuated by CSF1R inhibition in MBP29 mice. These cortical changes may restrict synaptic plasticity and potentially modify parvalbumin-positive perisomatic input. Collectively, this study suggests, that the lack of myeloid cells shifts the neuronal balance toward an increased inhibitory connectivity in the motor cortex of MBP29 mice thereby potentially deteriorating motor functions.
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Affiliation(s)
- C Gauer
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - K Battis
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Y Schneider
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - J B Florio
- Department of Neurosciences, University of California-San Diego, La Jolla, CA 92093, USA
| | - M Mante
- Department of Neurosciences, University of California-San Diego, La Jolla, CA 92093, USA
| | - H Y Kim
- Department of Neurosciences, University of California-San Diego, La Jolla, CA 92093, USA
| | - R A Rissman
- Department of Neurosciences, University of California-San Diego, La Jolla, CA 92093, USA
| | - A Hoffmann
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; UK Dementia Research Institute at The University of Edinburgh, Edinburgh, UK; Keenan Research Centre for Biomedical Science and Barlo Multiple Sclerosis Centre, St. Michael's Hospital, Toronto, Ontario, Canada.
| | - J Winkler
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany.
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Rothoeft T, Maier C, Talarico A, Hoffmann A, Schlegtendal A, Lange B, Petersmann A, Denz R, Timmesfeld N, Toepfner N, Vidal-Blanco E, Pfaender S, Lücke T, Brinkmann F. Natural and hybrid immunity after SARS-CoV-2 infection in children and adolescents. Infection 2024:10.1007/s15010-024-02225-w. [PMID: 38499828 DOI: 10.1007/s15010-024-02225-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 02/24/2024] [Indexed: 03/20/2024]
Abstract
PURPOSE In contrast to adults, immune protection against SARS-CoV-2 in children and adolescents with natural or hybrid immunity is still poorly understood. The aim of this study was to analyze different immune compartments in different age groups and whether humoral immune reactions correlate with a cellular immune response. METHODS 72 children and adolescents with a preceding SARS-CoV-2 infection were recruited. 37 were vaccinated with an RNA vaccine (BNT162b2). Humoral immunity was analyzed 3-26 months (median 10 months) after infection by measuring Spike protein (S), nucleocapsid (NCP), and neutralizing antibodies (nAB). Cellular immunity was analyzed using a SARS-CoV-2-specific interferon-γ release assay (IGRA). RESULTS All children and adolescents had S antibodies; titers were higher in those with hybrid immunity (14,900 BAU/ml vs. 2118 BAU/ml). NCP antibodies were detectable in > 90%. Neutralizing antibodies (nAB) were more frequently detected (90%) with higher titers (1914 RLU) in adolescents with hybrid immunity than in children with natural immunity (62.5%, 476 RLU). Children with natural immunity were less likely to have reactive IGRAs (43.8%) than adolescents with hybrid immunity (85%). The amount of interferon-γ released by T cells was comparable in natural and hybrid immunity. CONCLUSION Spike antibodies are the most reliable markers to monitor an immune reaction against SARS-CoV-2. High antibody titers of spike antibodies and nAB correlated with cellular immunity, a phenomenon found only in adolescents with hybrid immunity. Hybrid immunity is associated with markedly higher antibody titers and a higher probability of a cellular immune response than a natural immunity.
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Affiliation(s)
- T Rothoeft
- University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University, Bochum, Germany.
| | - C Maier
- University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University, Bochum, Germany
| | - A Talarico
- University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University, Bochum, Germany
| | - A Hoffmann
- University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University, Bochum, Germany
| | - A Schlegtendal
- University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University, Bochum, Germany
| | - B Lange
- Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany
| | - A Petersmann
- University Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Oldenburg, Oldenburg, Germany
- University Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - R Denz
- Department of Medical Informatics, Biometry and Epidemiology, Ruhr-University Bochum, Bochum, Germany
| | - N Timmesfeld
- Department of Medical Informatics, Biometry and Epidemiology, Ruhr-University Bochum, Bochum, Germany
| | - N Toepfner
- Department of Pediatrics, Faculty of Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - E Vidal-Blanco
- Department of Molecular and Medical Virology, Ruhr University Bochum, Bochum, Germany
| | - S Pfaender
- Department of Molecular and Medical Virology, Ruhr University Bochum, Bochum, Germany
| | - T Lücke
- University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University, Bochum, Germany
| | - F Brinkmann
- University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University, Bochum, Germany
- University Children's Hospital, Lübeck, Germany
- Airway Research Center North (ARCN), German Center for Lung Research (DZL), Lübeck, Germany
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3
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Schneider Y, Gauer C, Andert M, Hoffmann A, Riemenschneider MJ, Krebs W, Chalmers N, Lötzsch C, Naumann UJ, Xiang W, Rothhammer V, Beckervordersandforth R, Schlachetzki JCM, Winkler J. Distinct forebrain regions define a dichotomous astrocytic profile in multiple system atrophy. Acta Neuropathol Commun 2024; 12:1. [PMID: 38167307 PMCID: PMC10759635 DOI: 10.1186/s40478-023-01699-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 11/28/2023] [Indexed: 01/05/2024] Open
Abstract
The growing recognition of a dichotomous role of astrocytes in neurodegenerative processes has heightened the need for unraveling distinct astrocytic subtypes in neurological disorders. In multiple system atrophy (MSA), a rare, rapidly progressing atypical Parkinsonian disease characterized by increased astrocyte reactivity. However the specific contribution of astrocyte subtypes to neuropathology remains elusive. Hence, we first set out to profile glial fibrillary acidic protein levels in astrocytes across the human post mortem motor cortex, putamen, and substantia nigra of MSA patients and observed an overall profound astrocytic response. Matching the post mortem human findings, a similar astrocytic phenotype was present in a transgenic MSA mouse model. Notably, MSA mice exhibited a decreased expression of the glutamate transporter 1 and glutamate aspartate transporter in the basal ganglia, but not the motor cortex. We developed an optimized astrocyte isolation protocol based on magnetic-activated cell sorting via ATPase Na+/K+ transporting subunit beta 2 and profiled the transcriptomic landscape of striatal and cortical astrocytes in transgenic MSA mice. The gene expression profile of astrocytes in the motor cortex displayed an anti-inflammatory signature with increased oligodendroglial and pro-myelinogenic expression pattern. In contrast, striatal astrocytes were defined by elevated pro-inflammatory transcripts accompanied by dysregulated genes involved in homeostatic functions for lipid and calcium metabolism. These findings provide new insights into a region-dependent, dichotomous astrocytic response-potentially beneficial in the cortex and harmful in the striatum-in MSA suggesting a differential role of astrocytes in MSA-related neurodegenerative processes.
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Affiliation(s)
- Y Schneider
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - C Gauer
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - M Andert
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - A Hoffmann
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Schwabachanlage 6, 91054, Erlangen, Germany
- UK Dementia Research Institute, The University of Edinburgh, Edinburgh, UK
- Keenan Research Centre for Biomedical Science, St Michael's Hospital, Toronto, ON, Canada
- Department of Immunology, The University of Toronto, Toronto, ON, Canada
| | - M J Riemenschneider
- Department of Neuropathology, Regensburg University Hospital, 93053, Regensburg, Germany
| | - W Krebs
- Core Unit Bioinformatics, Data Integration and Analysis (CUBiDA), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - N Chalmers
- Institute of Biochemistry, Friedrich-Alexander-University Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - C Lötzsch
- Institute of Biochemistry, Friedrich-Alexander-University Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - U J Naumann
- Department of Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - W Xiang
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - V Rothhammer
- Department of Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - R Beckervordersandforth
- Institute of Biochemistry, Friedrich-Alexander-University Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - J C M Schlachetzki
- Department of Cellular and Molecular Medicine, University of California-San Diego, La Jolla, CA, 92093, USA
| | - J Winkler
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Schwabachanlage 6, 91054, Erlangen, Germany.
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Filipova V, Stuerzebecher PE, Kralisch S, Schubert MR, Hoffmann A, Oliveira F, Sheikh B, Blueher M, Kogel A, Scholz M, Miehle K, Ebert T, Laufs U, Toenjes A, Boeckel JN. Leptin mediates protective effects on the vasculature. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.3057] [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: 11/12/2022] Open
Abstract
Abstract
Introduction and purpose
Lipodystrophy (LD) syndromes are characterized by the loss of adipose tissue resulting in metabolic complications and accelerated atherosclerosis. The systemic concentration of the adipokine leptin is reduced in LD as a result of adipose tissue deficiency. A therapeutical option to treat LD is the substitution of leptin, which improves metabolic complications and reduces mortality. However, the vascular effects of leptin remain largely unknown.
Here we analyze the direct effects of leptin on the vascular system and the development of atherosclerosis.
Methods and results
Treatment of human endothelial cells (ECs) with leptin reduced endothelial inflammation and the process of endothelial-to-mesenchymal transition (EndMT) (CNN1, −41.4%, p<0.05, n=4). In addition, leptin administration prevented the EndMT-induced increase of endothelial permeability. The protective effect of leptin on EndMT was confirmed in vivo in a combined lipodystrophic and atherosclerosis-prone mouse model (LDLR−/−; aP2-nSrebp1c). Treatment of the mice with leptin (3.0 mg/kg body weight daily for 8 weeks) decreased EndMT. Leptin showed no effect on plaques size but reduced the protrusion of plaques in atherosclerotic areas of the aortic roots (−31%, p<0.05, n=4–6).
Cytokine screening revealed an increase of the growth differentiation factor 15 (GDF15) in serum of LD patients (+26.2%, p<0.05, n=53–58) and in ECs after EndMT (+138%, p<0.05, n=6743–10920). This increase was reversed using leptin treatment in ECs undergoing EndMT, in the LD mice model, and in LD patients after 4 weeks of leptin administration. Indeed, treatment of endothelial cells with GDF15 induced EndMT (CNN1, +7.7-fold-control, p<0.05, n=3), and impaired EC barrier function. Neutralizing antibodies targeting GDF15 inhibited EndMT-mediated expression of mesenchymal genes (CNN1, −54%, p<0.05, n=4). The treatment of ECs with serum from LD patients induced EndMT and the increase of mesenchymal marker expression was inhibited with additional administration with neutralizing antibodies targeting GDF15 (CNN1, −28%, p<0.05, n=3).
Conclusion
Our findings indicate that EndMT is part of the cardiovascular disease progression in lipodystrophy syndromes. Leptin treatment has direct protective vascular effects by preventing inflammation, EndMT, and maintaining endothelial integrity.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
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Affiliation(s)
- V Filipova
- University Hospital Leipzig , Leipzig , Germany
| | | | - S Kralisch
- University of Leipzig Medical Center , Leipzig , Germany
| | | | - A Hoffmann
- University Hospital Wuerzburg , Wuerzburg , Germany
| | - F Oliveira
- University of Leipzig and University Hospital Leipzig, Helmholtz Institute for Metabolic, Obesity and Vascular Research of the Helmholtz Zentrum Munich , Leipzig , Germany
| | - B Sheikh
- University of Leipzig and University Hospital Leipzig, Helmholtz Institute for Metabolic, Obesity and Vascular Research of the Helmholtz Zentrum Munich , Leipzig , Germany
| | - M Blueher
- University of Leipzig Medical Center , Leipzig , Germany
| | - A Kogel
- University Hospital Leipzig , Leipzig , Germany
| | - M Scholz
- University of Leipzig , Leipzig , Germany
| | - K Miehle
- University of Leipzig Medical Center , Leipzig , Germany
| | - T Ebert
- University of Leipzig Medical Center , Leipzig , Germany
| | - U Laufs
- University Hospital Leipzig , Leipzig , Germany
| | - A Toenjes
- University of Leipzig Medical Center , Leipzig , Germany
| | - J N Boeckel
- University Hospital Leipzig , Leipzig , Germany
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5
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Hoffmann A, Tin A, Vickers A, Shahrokni A. Preoperative Frailty vs. Impaired Sensorium, Which One Matters the Most for Postoperative Delirium (POD)? J Geriatr Oncol 2022. [DOI: 10.1016/s1879-4068(22)00364-2] [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: 11/05/2022]
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6
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Hoffmann A, Spiegel S, Burger D, Klemens J, Scharfer P, Schabel W. About the slot die coating process of lithium‐ion battery electrodes with regard to an optimized layer structure and edge quality. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. Hoffmann
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
| | - S. Spiegel
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
| | - D. Burger
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
| | - J. Klemens
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
| | - P. Scharfer
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
| | - W. Schabel
- Karlsruhe Institute of Technology Thin Film Technology Straße am Forum 7 76131 Karlsruhe Germany
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7
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Burger D, Hoffmann A, Klemens J, Scharfer P, Schabel W. Optimizing the production of Li‐ion batteries: Efficient drying of electrodes and savings by multilayer approach. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- D. Burger
- Karlsruhe Institute of Technology (KIT) Thin Film Technology (TFT) Straße am Forum 7 76131 Karlsruhe Germany
| | - A. Hoffmann
- Karlsruhe Institute of Technology (KIT) Thin Film Technology (TFT) Straße am Forum 7 76131 Karlsruhe Germany
| | - J. Klemens
- Karlsruhe Institute of Technology (KIT) Thin Film Technology (TFT) Straße am Forum 7 76131 Karlsruhe Germany
| | - P. Scharfer
- Karlsruhe Institute of Technology (KIT) Thin Film Technology (TFT) Straße am Forum 7 76131 Karlsruhe Germany
| | - W. Schabel
- Karlsruhe Institute of Technology (KIT) Thin Film Technology (TFT) Straße am Forum 7 76131 Karlsruhe Germany
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8
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Rose A, Rodriguez-Aguilera J, Schicht G, Lohrenz A, Tvardovskiy A, Büscher J, Hoffmann A, Damm G, Laufs U, Seehofer D, Blüher M, Sheikh B. The impact of cholesterol lowering drugs on metabolism and epigenetics. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.746] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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9
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Potreck A, Weyland CS, Seker F, Neuberger U, Herweh C, Hoffmann A, Nagel S, Bendszus M, Mutke MA. Correction to: Accuracy and Prognostic Role of NCCT-ASPECTS Depend on Time from Acute Stroke Symptom-onset for both Human and Machine-learning Based Evaluation. Clin Neuroradiol 2022; 32:585. [PMID: 35389098 PMCID: PMC9187542 DOI: 10.1007/s00062-022-01158-x] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- A Potreck
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - C S Weyland
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - F Seker
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - U Neuberger
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - C Herweh
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - A Hoffmann
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany.,Institute of Diagnostic and Interventional Neuroradiology, Inselspital Bern University Hospital, Bern, Switzerland
| | - S Nagel
- Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany
| | - M Bendszus
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - M A Mutke
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany.
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Tarras Madsen D, Ciucani U, Hoffmann A, Pantleon W. Thermal stability of thin rolled potassium-doped tungsten sheets during annealing at temperatures up to 1400 °C. Nuclear Materials and Energy 2022. [DOI: 10.1016/j.nme.2022.101126] [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: 11/25/2022]
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11
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Kell A, Link M, Breyer M, Hoffmann A, Köhl M, Gao K. A compact and fast magnetic coil for the manipulation of quantum gases with Feshbach resonances. Rev Sci Instrum 2021; 92:093202. [PMID: 34598519 DOI: 10.1063/5.0049518] [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: 03/05/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Cold atom experiments commonly use broad magnetic Feshbach resonances to manipulate the interaction between atoms. In order to induce quantum dynamics by a change in the interaction strength, rapid (∼μs) magnetic field changes over several tens of Gauss are required. Here, we present a compact design of a coil and its control circuit for a change in the magnetic field up to 36 G in 3 µs. The setup comprises two concentric solenoids with minimal space requirements, which can be readily added to existing apparatuses. This design makes the observation of non-equilibrium physics with broad Feshbach resonances accessible.
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Affiliation(s)
- A Kell
- Physikalisches Institut, University of Bonn, Wegelerstrasse 8, 53115 Bonn, Germany
| | - M Link
- Physikalisches Institut, University of Bonn, Wegelerstrasse 8, 53115 Bonn, Germany
| | - M Breyer
- Physikalisches Institut, University of Bonn, Wegelerstrasse 8, 53115 Bonn, Germany
| | - A Hoffmann
- Physikalisches Institut, University of Bonn, Wegelerstrasse 8, 53115 Bonn, Germany
| | - M Köhl
- Physikalisches Institut, University of Bonn, Wegelerstrasse 8, 53115 Bonn, Germany
| | - K Gao
- Physikalisches Institut, University of Bonn, Wegelerstrasse 8, 53115 Bonn, Germany
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Bolsi A, Hoffmann A. SP-0581 Patterns of practice and guideline development: A status update from the EPTN image guidance working group. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08632-1] [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: 11/16/2022]
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13
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Windisch R, Soliman S, Hoffmann A, Chen-Wichmann L, Lutz S, Kellner C, Redondo-Monte E, Vosberg S, Hartmann L, Schneider S, Beier F, Strobl C, Weigert O, Schuendeln M, Bernhagen J, Humpe A, Brendel C, Klump H, Greif P, Wichmann C. Converting a leukemic transcription factor into a powerful tool for large-scale ex vivo production of human phagocytes. Cytotherapy 2021. [DOI: 10.1016/s1465324921003844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Schultheiss K, Sato N, Matthies P, Körber L, Wagner K, Hula T, Gladii O, Pearson JE, Hoffmann A, Helm M, Fassbender J, Schultheiss H. Time Refraction of Spin Waves. Phys Rev Lett 2021; 126:137201. [PMID: 33861132 DOI: 10.1103/physrevlett.126.137201] [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: 09/09/2020] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
We present an experimental study of time refraction of spin waves (SWs) propagating in microscopic waveguides under the influence of time-varying magnetic fields. Using space- and time-resolved Brillouin light scattering microscopy, we demonstrate that the broken translational symmetry along the time coordinate results in a loss of energy conservation for SWs and thus allows for a broadband and controllable shift of the SW frequency. With an integrated design of SW waveguide and microscopic current line for the generation of strong, nanosecond-long, magnetic field pulses, a conversion efficiency up to 39% of the carrier SW frequency is achieved, significantly larger compared to photonic systems. Given the strength of the magnetic field pulses and its strong impact on the SW dispersion relation, the effect of time refraction can be quantified on a length scale comparable to the SW wavelength. Furthermore, we utilize time refraction to excite SW bursts with pulse durations in the nanosecond range and a frequency shift depending on the pulse polarity.
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Affiliation(s)
- K Schultheiss
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - N Sato
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - P Matthies
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Fakultät Physik, Technische Universität Dresden, 01062 Dresden, Germany
| | - L Körber
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Fakultät Physik, Technische Universität Dresden, 01062 Dresden, Germany
| | - K Wagner
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - T Hula
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - O Gladii
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
| | - J E Pearson
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Hoffmann
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Helm
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Fakultät Physik, Technische Universität Dresden, 01062 Dresden, Germany
| | - J Fassbender
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Fakultät Physik, Technische Universität Dresden, 01062 Dresden, Germany
| | - H Schultheiss
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, 01328 Dresden, Germany
- Fakultät Physik, Technische Universität Dresden, 01062 Dresden, Germany
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15
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Bang W, Silvani R, Hoffmann A, Ketterson JB, Montoncello F, Jungfleisch MB. Ferromagnetic resonance in single vertices and 2D lattices macro-dipoles of elongated nanoelements: measurements and simulations. J Phys Condens Matter 2021; 33:065803. [PMID: 33091893 DOI: 10.1088/1361-648x/abc402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We report broadband ferromagnetic resonance measurements of the in-plane magnetic field response of three- and four-fold symmetric vertices formed by non-contacting permalloy nano-ellipses together with extended lattices constructed from them. Complementing the experimental data with simulations, we are able to show that, as far as the most intense FMR responses are concerned, the spectra of vertices and lattices can largely be interpreted in terms of a superposition of the underlying hysteretic responses of the individual ellipses, as elemental building blocks of the system. This property suggest that it is possible to understand the orientation of the individual magnetic dipole moments in a dipole network in terms of dynamic measurements alone, thereby offering a powerful tool to analyze the alignment statistics in frustrated systems that are exposed to various magnetic histories.
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Affiliation(s)
- Wonbae Bang
- Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, United States of America
- Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, United States of America
| | - R Silvani
- Dipartimento di Fisica e Geologia, Università di Perugia, Perugia, I-06123, Italy
- Istituto Nazionale di Ricerca Metrologica, Torino, I-10135, Italy
| | - A Hoffmann
- Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, United States of America
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
| | - J B Ketterson
- Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, United States of America
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208, United States of America
| | - F Montoncello
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrara, Ferrara, I-44121, Italy
| | - M B Jungfleisch
- Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, United States of America
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16
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Hoffmann A, Cardoso AS, Fonseca NVB, Romanzini EP, Siniscalchi D, Berndt A, Ruggieri AC, Reis RA. Effects of supplementation with corn distillers' dried grains on animal performance, nitrogen balance, and enteric CH 4 emissions of young Nellore bulls fed a high-tropical forage diet. Animal 2021; 15:100155. [PMID: 33573951 DOI: 10.1016/j.animal.2020.100155] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 11/27/2022] Open
Abstract
The inclusion of corn-dried distillers' grains (DDG) could be an alternative supplement to increase animal performance, nitrogen efficiency usage (NEU), and decrease enteric methane (CH4) emissions. Our goal was to determine whether DDG could replace a traditional supplement (cottonseed meal) without affecting animal performance, N balance, and CH4 emissions. The experiment was conducted during the forage growing season (December to April), with 15 d adaptation, and a 112 d experimental period. The experimental design was completely randomized with four treatments: a mineral supplement (MS), cottonseed meal supplement (CS), 50% replacement of CS by DDG (50DDG), and 100% replacement of CS by DDG (100DDG). Cottonseed meal and DDG were used as protein supplement. A total of 12 paddocks, 3 per treatment, were used to measure forage mass: morphological and chemical composition of forage, forage allowance, and animal performance. Six animals per treatment were used to evaluate DM intake, digestibility, CH4 emissions, microbial protein production (MCP), and NEU of each treatment. Eighty-one Young Nellore bulls (48 testers, 12 per treatments and 33 adjusters) with initial BW of 255 ± 5 kg (10-12 months old) were supplemented with each supplement type at a level of 0.3% of BW. Pasture management was continuous stocking with a variable stocking rate (put-and-take). Enteric CH4 was measured using the gas tracer technique. The MCP was quantified using purine derivatives and the NEU mass balance. No differences were found in nutrient intake (P > 0.228). Individual animal performance and gain per area were higher in the treatments with concentrates compared with that of MS; however, there was no difference among treatments CS, 50DDG, and 100DDG. The ADG was 0.83 for MS and 1.08 kg/animal/d when supplemented (P < 0.05). Gain per hectare was 709 kg/ha for MS and 915 kg/ha when supplemented with concentrates (P < 0.05). There was no difference in CH4 production among treatments that average 180 g/animal/d; however, CH4 per kg of gain was reduced with CS. The CH4 conversion factor averaged 5.91%. There was no difference in the synthesis of MCP and NEU. Corn DDG can replace 100% of cottonseed meal as a protein source for supplementation of young Nellore bulls grazing in tropical pastures without affecting animal performance, NEU, MCP, and CH4 emissions.
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Affiliation(s)
- A Hoffmann
- Department of Animal Science, São Paulo State University - Unesp, Jaboticabal, São Paulo, Brazil; Trouw Nutrition, Campinas, São Paulo, Brazil
| | - A S Cardoso
- Department of Animal Science, São Paulo State University - Unesp, Jaboticabal, São Paulo, Brazil.
| | - N V B Fonseca
- Department of Animal Science, São Paulo State University - Unesp, Jaboticabal, São Paulo, Brazil
| | - E P Romanzini
- Department of Animal Science, São Paulo State University - Unesp, Jaboticabal, São Paulo, Brazil
| | - D Siniscalchi
- Department of Animal Science, São Paulo State University - Unesp, Jaboticabal, São Paulo, Brazil
| | - A Berndt
- Embrapa Pecuária Sudeste, São Carlos, São Paulo, Brazil
| | - A C Ruggieri
- Department of Animal Science, São Paulo State University - Unesp, Jaboticabal, São Paulo, Brazil
| | - R A Reis
- Department of Animal Science, São Paulo State University - Unesp, Jaboticabal, São Paulo, Brazil
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17
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Schellhammer S, Gantz S, Karsch L, Van der Kraaij E, Smeets J, Serra A, Pawelke J, Hoffmann A. OC-0679: On-line MRI-based proton beam range verification: first experimental proof-of-concept. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00701-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Zeng FL, Ren ZY, Li Y, Zeng JY, Jia MW, Miao J, Hoffmann A, Zhang W, Wu YZ, Yuan Z. Intrinsic Mechanism for Anisotropic Magnetoresistance and Experimental Confirmation in Co_{x}Fe_{1-x} Single-Crystal Films. Phys Rev Lett 2020; 125:097201. [PMID: 32915598 DOI: 10.1103/physrevlett.125.097201] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 07/13/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Using first-principles transport calculations, we predict that the anisotropic magnetoresistance (AMR) of single-crystal Co_{x}Fe_{1-x} alloys is strongly dependent on the current orientation and alloy concentration. An intrinsic mechanism for AMR is found to arise from the band crossing due to magnetization-dependent symmetry protection. These special k points can be shifted towards or away from the Fermi energy by varying the alloy composition and hence the exchange splitting, thus allowing AMR tunability. The prediction is confirmed by delicate transport measurements, which further reveal a reciprocal relationship of the longitudinal and transverse resistivities along different crystal axes.
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Affiliation(s)
- F L Zeng
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
| | - Z Y Ren
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
| | - Y Li
- Department of Physics, Oakland University, Rochester, Michigan 48309, USA
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Y Zeng
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
| | - M W Jia
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
| | - J Miao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - A Hoffmann
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - W Zhang
- Department of Physics, Oakland University, Rochester, Michigan 48309, USA
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Y Z Wu
- Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
- Shanghai Research Center for Quantum Sciences, Shanghai 201315, China
| | - Z Yuan
- Center for Advanced Quantum Studies and Department of Physics, Beijing Normal University, Beijing 100875, China
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19
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Banti C, Kourkoumelis N, Hatzidimitriou A, Antoniadou I, Dimou A, Rallis M, Hoffmann A, Schmidtke M, McGuire K, Busath D, Kolocouris A, Hadjikakou S. Amantadine copper(II) chloride conjugate with possible implementation in influenza virus inhibition. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114590] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Wieczorek J, Cichon M, Wieczorek P, Hoffmann A, Wnuk-Wojnar A, Szydlo K, Lasek-Bal A, Mizia-Stec K. P1816 Cerebral microembolism in low-risk patients with paroxysmal atrial fibrillation before and after pulmonary vein isolationCerebral microembolism in low-risk patients with paroxysmal atrial fibrillation. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.1164] [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
Invasive treatment of atrial fibrillation (AF) becomes more suitable and effective therapy. There are no consistent data describing the occurrence of potential neurological complications in low-risk patients with paroxysmal AF.
AIM
to determine the occurrence, consequences and risk factors for brain white matter hiperintensities (WMH) assessed in magnetic resonance imaging (MRI) in low-risk patients before and after pulmonary vein isolation (PVI) treatment.
METHODS
Eighty patients with symptomatic paroxysmal AF (median age: 58 years (IQR 50-63), K/M: 30/50), CHA2DS2-Vasc ≤ 3 (CHA2DS2-Vasc: 2 (IQR 1-2.5)) were included in the study. Before and after a minimum of 6-month period after PVI-RF treatment (med. 9,9 months, IQR 7.6-11.8 months) a clinical evaluation with brain MRI and Mini Mental State Examination (MMSE) test were determined. Severity of brain WMH in MRI was assessed in the Fazekas scale (pic 1). The efficacy of PVI-RF treatment analyzed in a 7-day Holter monitoring was confirmed in 43 (53.8%) patients.
RESULTS
Baseline WMH lesions were found in 55 (68.8%) patients. Patients with baseline WMH lesion obtained similar results in the MMSE test, compared to patients with a normal brain image in the MRI study. There was a statistically significant more frequent occurrence of cerebral WMH lesions among older patients, with a higher CHA2DS2-Vasc score, with left atrial (LA) dilatation and dysfunction. Factors affecting the severity of the WMH were: the co-occurrence of the patent foramen ovale (PFO) and coronary artery disease (CAD).
After PVI-RF treatment there were no significant changes in the presence and severity of WMH lesions. Similarly, there were no significant changes in the cognitive abilities assessed with MMSE test compared to the pre-procedural evaluation. There were also similar factors predisposing to brain WMH changes: older age, higher CHA2DS2-Vasc score and higher BMI. In turn, the degree of the brain WMH severity after observation period was dependent on age, higher CHA2DS2-Vasc score, presence of PFO and CAD and the initial LA function.
CONCLUSIONS Cerebral microembolism assessed in MRI is often found in low-risk patients with paroxysmal AF, and its presence and severity are associated with LA dilatation and dysfunction, age and higher CHA2DS2-Vasc score. Additional factors affecting the severity of WMH lesions are: the co-occurrence of PFO and CAD. PVI-RF procedure and its efficacy does not influence on MRI lesions. In the population of relatively young AF patients with no significant cardiovascular disease burden, cerebral microembolism is not related to cognitive impairment.
Abstract P1816 Figure. pic 1
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Affiliation(s)
- J Wieczorek
- Medical University of Silesia, 1st Department of Cardiology, Katowice, Poland
| | - M Cichon
- Medical University of Silesia, 1st Department of Cardiology, Katowice, Poland
| | - P Wieczorek
- Medical University of Silesia, 1st Department of Cardiology, Katowice, Poland
| | - A Hoffmann
- Medical University of Silesia, 1st Department of Cardiology, Katowice, Poland
| | - A Wnuk-Wojnar
- Medical University of Silesia, 1st Department of Cardiology, Katowice, Poland
| | - K Szydlo
- Medical University of Silesia, 1st Department of Cardiology, Katowice, Poland
| | - A Lasek-Bal
- 7th Public Hospital of the Silesian Medical University, Department of Neurology, Katowice, Poland
| | - K Mizia-Stec
- Medical University of Silesia, 1st Department of Cardiology, Katowice, Poland
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21
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Raschka C, Hoffmann A, Andre J. Doping-Epidemiologie in Fitnessstudios im Großraum Würzburg. Rechtsmedizin (Berl) 2019. [DOI: 10.1007/s00194-019-00348-1] [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: 10/26/2022]
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22
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Jung B, Iacono P, Hahn M, Borsch M, Hoffmann A, Nickolaus P. P275 Both BI 443651 and BI 1265162 demonstrate inhibition of the liquid absorption from the rat airway epithelium in vivo. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30568-5] [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: 10/26/2022]
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23
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Gantz S, Riemann L, Smeets J, Pawelke J, Hoffmann A. PO-1021 Influence of beamline and scanning magnets on the magnetic fringe field at a proton PBS nozzle. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31441-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Thiele J, Schneider S, Valentini C, Lohaus F, Sarah S, Haak D, Krause M, Hoffmann A, Troost E. PO-1094 Use of an individual abdominal corset in patients with upper-GI tumors treated with proton therapy. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31514-2] [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: 10/26/2022]
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25
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Hoffmann A. SP-0460 Integration of MR and particle therapy – how far are we? Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30880-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Schneider S, Dolde K, Alimusay M, Fluegel B, Saito N, Hoffmann A, Pfaffenberger A. EP-1971 Comparison of pancreatic respiratory motion using three abdominal corsets for particle therapy. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32391-6] [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: 10/26/2022]
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27
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Tönjes A, Kralisch S, Hoffmann A, Schleinitz D, Kratzsch J, Blüher M, Stumvoll M, Kovacs P, Fasshauer M, Ebert T. Circulating Pro-Neurotensin in gestational diabetes mellitus. Nutr Metab Cardiovasc Dis 2019; 29:23-29. [PMID: 30527352 DOI: 10.1016/j.numecd.2018.09.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 09/21/2018] [Accepted: 09/24/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND AND AIMS Pro-Neurotensin (NT), a stable surrogate parameter of NT, has recently been introduced as a peptide predicting the development of obesity, diabetes mellitus, cardiovascular diseases, and cardiovascular mortality. However, regulation of Pro-NT in gestational diabetes mellitus (GDM) remains uninvestigated. METHODS AND RESULTS Pro-NT was quantified in 74 women with GDM, 74 healthy, gestational age-matched, pregnant controls, as well as in a second cohort comprising of 74 healthy, non-pregnant control women, using a chemiluminometric sandwich immunoassay. Pro-NT was correlated to measures of obesity, hypertension, glucose and lipid metabolism, renal function, and inflammation. Mean ± standard deviation of circulating Pro-NT levels were not significantly different in women with GDM (100.2 ± 75.7 pmol/l) as compared to healthy, pregnant controls (103.2 ± 37.4 pmol/l) and healthy, non-pregnant female controls (105.9 ± 38.9 pmol/l) (p = 0.661). Homeostasis model assessment of insulin resistance (HOMA-IR) and creatinine positively correlated with serum Pro-NT in multivariate regression analysis. In contrast, free fatty acids (FFA) were inversely correlated with circulating Pro-NT. Results sustained adjustment for pregnancy status. CONCLUSIONS Circulating Pro-NT is not independently associated with GDM, but is with HOMA-IR, creatinine, and FFA even after adjustment for pregnancy status.
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Affiliation(s)
- A Tönjes
- University of Leipzig, Department of Endocrinology and Nephrology, 04103, Leipzig, Germany
| | - S Kralisch
- University of Leipzig, Department of Endocrinology and Nephrology, 04103, Leipzig, Germany; Leipzig University Medical Center, IFB AdiposityDiseases, 04103, Leipzig, Germany
| | - A Hoffmann
- University of Leipzig, Department of Endocrinology and Nephrology, 04103, Leipzig, Germany
| | - D Schleinitz
- Leipzig University Medical Center, IFB AdiposityDiseases, 04103, Leipzig, Germany
| | - J Kratzsch
- University of Leipzig, Institute of Laboratory Medicine, 04103, Leipzig, Germany
| | - M Blüher
- University of Leipzig, Department of Endocrinology and Nephrology, 04103, Leipzig, Germany
| | - M Stumvoll
- University of Leipzig, Department of Endocrinology and Nephrology, 04103, Leipzig, Germany
| | - P Kovacs
- Leipzig University Medical Center, IFB AdiposityDiseases, 04103, Leipzig, Germany
| | - M Fasshauer
- University of Leipzig, Department of Endocrinology and Nephrology, 04103, Leipzig, Germany; Leipzig University Medical Center, IFB AdiposityDiseases, 04103, Leipzig, Germany; Justus-Liebig-University, Institute of Nutritional Science, 35390, Giessen, Germany
| | - T Ebert
- University of Leipzig, Department of Endocrinology and Nephrology, 04103, Leipzig, Germany; Leipzig University Medical Center, IFB AdiposityDiseases, 04103, Leipzig, Germany.
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28
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Kaux JF, Janssen L, Drion P, Nusgens B, Libertiaux V, Pascon F, Heyeres A, Hoffmann A, Lambert C, Le Goff C, Denoël V, Defraigne JO, Rickert M, Crielaard JM, Colige A. Vascular Endothelial Growth Factor-111 (VEGF-111) and tendon healing: preliminary results in a rat model of tendon injury. Muscles Ligaments Tendons J 2019. [DOI: 10.32098/mltj.01.2014.05] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J.-F. Kaux
- Physical Medicine Service, Department of Motility Sciences, University and University Hospital of Liège, Belgium
| | - L. Janssen
- Culture and Therapy Unit, Assistance Publique des Hôpitaux de Marseille, France
| | - P. Drion
- Culture and Therapy Unit, Assistance Publique des Hôpitaux de Marseille, France
| | - B. Nusgens
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liège, Belgium
| | | | - F. Pascon
- Department ARGENCO, University of Liège, Belgium
| | - A. Heyeres
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liège, Belgium
| | - A. Hoffmann
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liège, Belgium
| | - C. Lambert
- Laboratory of Connective Tissues Biology, GIGA-R, University of Liège, Belgium
| | - C. Le Goff
- Department of Clinical Biology, University and University Hospital of Liège, Belgium
| | - V. Denoël
- Department ARGENCO, University of Liège, Belgium
| | - J.-O. Defraigne
- CREDEC, Laboratory of Experimental Surgery, University of Liège, Belgium
| | - M. Rickert
- Department of Orthopaedic Surgery, University of Giessen, Germany
| | - J.-M. Crielaard
- Physical Medicine Service, Department of Motility Sciences, University and University Hospital of Liège, Belgium
| | - A. Colige
- Animal Facility of University Hospital of Liège, ULg-GIGA-R, University of Liège, Belgium
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29
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Renesto D, Araújo T, Hoffmann A, Maneck Delevatti L, Ferrari A, Leite R, Rincão G, Reis R. PSXIII-15 Substitution of protein source by corn DDGS in the supplementation of Nellore young bulls during the rearing phase. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- D Renesto
- Sao Paulo State University,Jaboticabal, Brazil
| | - T Araújo
- Sao Paulo State University,Jaboticabal, Brazil
| | - A Hoffmann
- Sao Paulo State University,Jaboticabal, Brazil
| | | | - A Ferrari
- Sao Paulo State University,Jaboticabal, Brazil
| | - R Leite
- Sao Paulo State University,Jaboticabal, Brazil
| | - G Rincão
- Sao Paulo State University,Jaboticabal, Brazil
| | - R Reis
- Sao Paulo State University,Jaboticabal, Brazil
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30
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Bosse K, Oberlechner E, Hoffmann A, Fugunt R, Böer B, Gruber I, Helms G, Hoopmann U, Röhm C, Hartkopf A, Komoss S, Faust U, Pohle A, Dufke A, Nguyen H, Kehrer M, Schroeder C, Heinrich T, Rieß O, Staebler A, Vogel U, Taran FA, Brucker SY, Marx M, Wallwiener D, Hahn M. Prädiktive Testung bei Familienangehörigen von BRCA1, BRCA2 und CHEK2 Mutationsträgerinnen am Universitätsbrustzentrum Tübingen – eine klinische retrospektive unizentrische Kohortenstudie. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1671360] [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)
- K Bosse
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
- Institut für Medizinische Genetik und angewandte Genomik, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - E Oberlechner
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - A Hoffmann
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - R Fugunt
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - B Böer
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - I Gruber
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - G Helms
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - U Hoopmann
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - C Röhm
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - A Hartkopf
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - S Komoss
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - U Faust
- Institut für Medizinische Genetik und angewandte Genomik, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - A Pohle
- Institut für Medizinische Genetik und angewandte Genomik, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - A Dufke
- Institut für Medizinische Genetik und angewandte Genomik, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - H Nguyen
- Institut für Medizinische Genetik und angewandte Genomik, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - M Kehrer
- Institut für Medizinische Genetik und angewandte Genomik, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - C Schroeder
- Institut für Medizinische Genetik und angewandte Genomik, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - T Heinrich
- Institut für Medizinische Genetik und angewandte Genomik, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - O Rieß
- Institut für Medizinische Genetik und angewandte Genomik, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - A Staebler
- Institut für Pathologie und Neuropathologie, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - U Vogel
- Institut für Pathologie und Neuropathologie, Universitätsklinikum Tübingen, Tübingen, Deutschland
| | - FA Taran
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - SY Brucker
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - M Marx
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - D Wallwiener
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
| | - M Hahn
- Department für Frauengesundheit, Universitätsfauenklinik Tübingen, Tübingen, Deutschland
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Grimm-Lebsanft B, Brett C, Strassl F, Rukser D, Biednov M, Biebl F, Naumova M, Hoffmann A, Akinsinde L, Brückner D, Herres-Pawlis S, Rübhausen M. A cryostat for low temperature resonance Raman measurements on operando oxygenated bioinorganic model complexes. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.07.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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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Horbach T, Wolf H, Michaells HC, Wagner W, Hoffmann A, Schmidt A, Beck H. A Fixed-Dose Combination of Low Molecular Weight Heparin with Dihydroergotamine versus Adjusted-Dose Unfractionated Heparin in the Prevention of Deep-Vein Thrombosis after Total Hip Replacement. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1650253] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryThe low dose heparin regimen (LDH) is not appropriate for prevention of intra- and postoperative thromboembolic complications in high risk patients, especially those undergoing elective hip replacement. Despite LDH prophylaxis, the incidence of deep-vein thrombosis (DVT) remains in a range of 20 to 35%. Adjusted-dose unfractionated heparin prophylaxis is thought to be one of the most effective regimens for thrombosis prophylaxis in this indication, but it requires two or three daily injections as well as precise monitoring of the activated partial thromboplastin time (aPTT). As an attractive alternative, we investigated the efficacy and safety of the low molecular weight heparin (LMWH) certoparin combined with dihydroergotamine (DHE) given once daily.In a randomised, open clinical trial, a total number of 305 patients undergoing total elective hip replacement were enrolled and divided into two groups, either receiving a fixed-dose combination of LMWH (3,000 IU) and DHE (0.5 mg) subcutaneously once daily, or adjusted-dose unfractionated heparin (UFH) subcutaneously every 8 h. The UFH dosage was adjusted daily to keep an aPTT of about 50 s. The aPTT was determined 3 h after the morning injection. During the study, the starting dose (15,000 IU/day) was increased to a plateau value of 28,800 ± 7,150 IU/day (mean ± SD) to maintain the aPTT in the prescribed range. The plateau value was achieved after 8 postoperative days. For analysis of efficacy 289 patients were evaluable. The occurrence of deep vein thrombosis was determined by bilateral ascending venography, which was performed on the same day in patients with clinical signs suggesting DVT; and in all remaining patients at the end of the prophylaxis period. Deep vein thrombosis was diagnosed in 17 of 142 patients (12.0%) treated with LMWH/DHE and in 13 of 147 patients (8.8%) treated with adjusted-dose UFH. Combined distal-proximal thrombosis was more frequently in patients receiving UFH (n = 5; 3.4%) compared to the LMWH/DHE group (n = 2; 1.4%). These differences are statistically not significant. In the UFH group one case of non-fatal pulmonary embolism occurred. Both prophylaxis regimens were well tolerated; wound bleeding was observed in 8 (5.3%) patients in the LMWH group and in 6 (4.0%) patients in the UFH group. Intraoperative blood-loss volume (mean±SD) was 751 ± 339 ml (LMWH/DHE) and 736 ± 380 ml (UFH), whereas postoperative drain-loss volume (mean ± SD) was found to be 523 ± 333 ml (LMWH/DHE) and 581 ± 404 ml (UFH). Whole blood transfusion volumes (mean ± SD) were 570 ± 202 ml (LMWH/DHE) and 748 ± 455 ml (UFH). Additionally, red cell replacement volumes (mean ± SD) were 804 ± 435 ml (LMWH/DHE) and 720 ± 328 ml (UHF). Revision of wound or additional drainage were necessary in 3 LMWH/DHE and 7 UFH patients. One patient needed reoperation due to bleeding, 3 (2.0%) had petechia and 1 exhibited an allergic exanthema, all of them in the UFH group. A slight erythema at the injection site was observed in 6 (3.9%) patients receiving LMWH/DHE. During the course of prophylaxis, injection hematomas were documented in 57.9% (LMWH/DHE) and in 61.4% (UFH) of the patients. All differences were statistically not significant.Single daily subcutaneous injections of LMWH/DHE appeared to be safe and efficacious compared to adjusted-dose UFH for prophylaxis of DVT in high-risk patients.
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Affiliation(s)
- T Horbach
- The Surgical Clinic and Out-Patient Department, University of Erlangen, Germany
| | - H Wolf
- Medical Department, Sandoz AG, Nuremberg, Germany
| | | | - W Wagner
- The Surgical Clinic and Out-Patient Department, University of Erlangen, Germany
| | - A Hoffmann
- The Surgical Clinic and Out-Patient Department, University of Erlangen, Germany
| | - A Schmidt
- The institute for Clinical Research, Hamburg, Germany
| | - H Beck
- The Surgical Clinic and Out-Patient Department, University of Erlangen, Germany
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Skowerski M, Wozniak-Skowerska I, Hoffmann A, Nowak S, Skowerski T, Sosnowski M, Wnuk-Wojnar AM, Mizia-Stec K. Pulmonary vein anatomy variants as a biomarker of atrial fibrillation - CT angiography evaluation. BMC Cardiovasc Disord 2018; 18:146. [PMID: 30005637 PMCID: PMC6045862 DOI: 10.1186/s12872-018-0884-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 01/23/2018] [Accepted: 07/05/2018] [Indexed: 12/19/2022] Open
Abstract
Background It has been suggested that changes in pulmonary veins (PV) and left atrium (LA) anatomy may have an influence on initiating atrial fibrillation (AF) and the effectiveness of pulmonary vein isolation (PVI) in patients (pts) with atrial fibrillation. The aim of the study was to assess anatomy abnormalities of the PV and LA in the patients with the history of AF and compare it with the control group(CG). Methods The multi-slice tomography (MSCT) scans were performed in 224 AF pts. before PVI (129 males, mean age 59 ± 9 yrs). The CG consisted of 40 pts. without AF (26 males, age 45 ± 9 yrs). LA and PV anatomy were evaluated. Diameters of PV ostia were measured in two directions: anterior-posterior (AP) and superior-inferior (SI) automatically using Vitrea 4.0. Results Pulmonary veins anatomy variants were observed more frequently in the atrial fibrillation group - 83 pts. (37%) vs 6 pts. (15%) in CG; 9% (21 pts) left common ostia (CO), 2% (5 pts) right CO, 19% (42 pts) additional right PV (APV), (1.8%) 4 pts. APV left, 8% right early branching (EB) and 3.5% left EB. The LA diameter differed significantly in AF vs CG group (41.2 ± 6 mm vs 35 ± 4.2 mm, p < 0.0001) respectively. Conclusions The anomalies of pulmonary vein anatomy occurred more often in pts. with AF. They can be defined as an image biomarkers of atrial fibrillation. Right additional (middle) pulmonary vein was the most important anomaly detected in AF patients as well as enlargered diameters of the LA and PV ostia.
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Affiliation(s)
- M Skowerski
- Department of Cardiology, School of Health Sciences, Medical University of Silesia, Katowice, Poland
| | - I Wozniak-Skowerska
- First Department of Cardiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - A Hoffmann
- First Department of Cardiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - S Nowak
- First Department of Cardiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - T Skowerski
- Department of Cardiology, School of Health Sciences, Medical University of Silesia, Katowice, Poland.
| | - M Sosnowski
- Unit of Noninvasive Cardiovascular Diagnostics, Medical University of Silesia, Katowice, Poland
| | - A M Wnuk-Wojnar
- First Department of Cardiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - K Mizia-Stec
- First Department of Cardiology, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
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Abstract
ZusammenfassungDie Autoprothrombin C-Wirkung wird durch die Thrombokinase-Hemmstoffe Ixodin, Argasin und Sojabohnen-Trypsin-Inhibitor gehemmt, während der Thrombinhemmstoff Hirudin ohne Einfluß auf die APC-Aktivität ist.
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Markwardt F, Barthel W, Glusa E, Hoffmann A. Die Überführung von Blutplättchen in einen thrombasthenieähnlichen Zustand mit einem 1-Styryl-3.4-Dihydroisochinolinderivat (SDHI). Thromb Haemost 2018. [DOI: 10.1055/s-0038-1653549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
ZusammenfassungDas Isochinolinderivat CSDHI bewirkt eine reversible Blockade der für den Ablauf der Hämostase und Thrombose wichtigsten Plättchenfunktionen. Die mit dem Hemmstoff behandelten menschlichen Plättchen verlieren ihre Fähigkeit zur Ausbreitung, Adhäsion, Aggregation und Retraktion sowie zu morphologischen und biochemischen Veränderungen, die durch Thrombin ausgelöst und unter dem Begriff der viskosen Metamorphose zusammengefaßt werden. Eine Hemmung der Gerinnung tritt nicht ein. Die Glykolyse und Atmung der Zellen werden ebenso wie die Fähigkeit zur Serotoninaufnähme nur wenig beeinflußt, dagegen wird die Plättchen-ATPase in gleicher Weise wie die durch Thrombin ausgelösten Reaktionen der Plättchen gehemmt.
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Taylor-Cousar J, Tullis E, Derichs N, Davies J, Nazareth D, Downey D, Rosenbluth D, Fajac I, Malfroot A, Saunders C, Short C, Jensen R, Solomon G, Vermeulen F, Willmann S, Saleh S, Langer S, Kaiser A, Hoffmann A, Rowe S, Ratjen F. P028 Riociguat for the treatment of adult Phe508del homozygous cystic fibrosis: efficacy data from the Phase II Rio-CF study. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30325-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Schellhammer S, Karsch L, Smeets J, L'Abbate C, Henrotin S, Van der Kraaij E, Lühr A, Quets S, Pawelke J, Hoffmann A. OC-0605: First in-beam MR scanner for image-guided proton therapy: beam alignment and magnetic field effects. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30915-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hoffmann A, Bolsi A, Peroni M. SP-0220: EPTN WP4: image guidance in particle therapy. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30530-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Dicke B, Hoffmann A, Stanek J, Rampp MS, Grimm-Lebsanft B, Biebl F, Rukser D, Maerz B, Göries D, Naumova M, Biednov M, Neuber G, Wetzel A, Hofmann SM, Roedig P, Meents A, Bielecki J, Andreasson J, Beyerlein KR, Chapman HN, Bressler C, Zinth W, Rübhausen M, Herres-Pawlis S. Transferring the entatic-state principle to copper photochemistry. Nat Chem 2018; 10:355-362. [DOI: 10.1038/nchem.2916] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Accepted: 11/17/2017] [Indexed: 01/10/2023]
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Kralisch S, Hoffmann A, Klöting N, Bachmann A, Kratzsch J, Blüher M, Zhang MZ, Harris R, Stumvoll M, Fasshauer M, Ebert T. The novel adipokine/hepatokine fetuin B in severe human and murine diabetic kidney disease. Diabetes & Metabolism 2017; 43:465-468. [DOI: 10.1016/j.diabet.2017.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 01/04/2017] [Accepted: 01/08/2017] [Indexed: 12/27/2022]
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Mizia-Stec K, Wieczorek J, Wnuk-Wojnar A, Hoffmann A, Wozniak-Skowerska I, Nowak S, Wybraniec M, Cichon M, Undas A. P4593Atrial fibrillation, rapid atrial rhythm and left atrial manoeuvres directly preceding pulmonary vein isolation result in left atrial prothrombotic and inflammatory activation. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4593] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mizia-Stec K, Wieczorek J, Wnuk-Wojnar A, Wozniak-Skowerska I, Wybraniec M, Hoffmann A, Nowak S, Cichon M, Adamczak M, Chudek J, Wiecek A. P3010Lower soluble Klotho and higher impact fibroblast growth factor 23 serum levels are associated with episodes of atrial fibrillation. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3010] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Mizia-Stec K, Wieczorek J, Wybraniec M, Wozniak-Skowerska I, Szydlo K, Hoffmann A, Nowak S, Chudek J, Wiecek A, Wnuk-Wojnar A. P3577Serum levels of adipokines in left atrium and peripheral vein in patients undergoing PVI. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3577] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Wybraniec M, Wieczorek J, Wozniak-Skowerska I, Hoffmann A, Nowak S, Wnuk-Wojnar A, Chudek J, Wiecek A, Mizia-Stec K. P2670Plasma renalase concentration in patients with atrial fibrillation undergoing pulmonary vein isolation. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2670] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kralisch S, Hoffmann A, Kratzsch J, Blüher M, Stumvoll M, Fasshauer M, Ebert T. The brown-fat-secreted adipokine neuregulin 4 is decreased in gestational diabetes mellitus. Diabetes Metab 2017; 44:150-154. [PMID: 28709749 DOI: 10.1016/j.diabet.2017.06.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 05/26/2017] [Accepted: 06/02/2017] [Indexed: 01/20/2023]
Abstract
AIMS Neuregulin 4 has recently been recognized as a novel adipokine secreted by brown adipose tissue (BAT), with beneficial effects on murine insulin resistance and hepatic steatosis. Yet, thus far, neither regulation of neuregulin 4 in gestational diabetes mellitus (GDM) nor its longitudinal changes in the peripartum period have been elucidated. METHODS Circulating neuregulin 4 levels were measured by ELISA in 74 women with GDM and 74 healthy, gestational-age-matched controls. Also, neuregulin 4 was quantified during pregnancy and compared with postpartum levels in a follow-up study of 25 women with previous GDM and 25 healthy control women. RESULTS Women with GDM had lower median serum levels of the novel BAT-secreted adipokine neuregulin 4 (3.0μg/L) compared with healthy (non-GDM) pregnant controls (3.5μg/L; P=0.020), and the area under the glucose curve (AUCGlucose) was an independent and negative predictor of circulating neuregulin 4 (P=0.033). Also, median postpartum serum concentrations of neuregulin 4 (3.2μg/L) were not significantly different from prepartum levels (2.8μg/L; P=0.328). In addition, neuregulin 4 was positively and independently associated with irisin (P=0.009), but not other BAT-secreted adipokines. CONCLUSION/INTERPRETATION Women with GDM have significantly lower circulating neuregulin 4 levels compared with healthy pregnant controls, and the AUCGlucose is negatively and independently associated with neuregulin 4 during pregnancy. Neuregulin 4 is positively correlated with irisin during pregnancy, as well as in a longitudinal fashion. Future studies are now needed to better elucidate the precise pathomechanisms of the regulation of BAT-secreted adipokines during pregnancy.
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Affiliation(s)
- S Kralisch
- Department of Endocrinology and Nephrology, University of Leipzig, 04103 Leipzig, Germany; Leipzig University Medical Center, IFB Adiposity Diseases, 04103 Leipzig, Germany
| | - A Hoffmann
- Department of Endocrinology and Nephrology, University of Leipzig, 04103 Leipzig, Germany
| | - J Kratzsch
- Institute of Laboratory Medicine, University of Leipzig, 04103 Leipzig, Germany
| | - M Blüher
- Department of Endocrinology and Nephrology, University of Leipzig, 04103 Leipzig, Germany
| | - M Stumvoll
- Department of Endocrinology and Nephrology, University of Leipzig, 04103 Leipzig, Germany
| | - M Fasshauer
- Department of Endocrinology and Nephrology, University of Leipzig, 04103 Leipzig, Germany; Leipzig University Medical Center, IFB Adiposity Diseases, 04103 Leipzig, Germany
| | - T Ebert
- Department of Endocrinology and Nephrology, University of Leipzig, 04103 Leipzig, Germany; Leipzig University Medical Center, IFB Adiposity Diseases, 04103 Leipzig, Germany.
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Abstract
Physiologic alignment of the human lower leg is well defined. The etiology for malalignment comprises constitutional, degenerative and posttraumatic conditions. Osteotomies around the knee can correct the malalignment, provided that the origin of deviation is in proximity of the knee center. Crucial factors for the evaluation of axis deviation are the weight-bearing line, the mechanical axes of femur and tibia, the joint line angles and the center of the hip, knee and upper ankle joint. Careful preoperative planning is mandatory for reproducible clinical results. For the treatment of varus osteoarthritis of the knee, a slight overcorrection to the 62% width of the lateral tibial plateau is frequently advocated. In valgus knees, a correction of the postoperative weight-bearing line to physiologic conditions (44% of the lateral tibial width) is regarded to be sufficient. Recently, individualized planning of the correction angle is advocated to better address the underlying pathology of each patient.
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Affiliation(s)
- D Pape
- Orthopädische Abteilung, Centre Hospitalier de Luxembourg - Clinique d'Eich (Akademisches Lehrkrankenhaus der Universität des Saarlandes), 78, rue d'Eich, 1460, Luxembourg, Luxemburg.
| | - A Hoffmann
- Orthopädische Abteilung, Centre Hospitalier de Luxembourg - Clinique d'Eich (Akademisches Lehrkrankenhaus der Universität des Saarlandes), 78, rue d'Eich, 1460, Luxembourg, Luxemburg
| | - R Seil
- Orthopädische Abteilung, Centre Hospitalier de Luxembourg - Clinique d'Eich (Akademisches Lehrkrankenhaus der Universität des Saarlandes), 78, rue d'Eich, 1460, Luxembourg, Luxemburg
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Derichs N, Taylor-Cousar J, Tullis E, Davies J, Nazareth D, Downey D, Rosenbluth D, Fajac I, Malfroot A, Bakker M, Clancy J, Uluer A, Castellani C, Sermet-Gaudelus I, Ahrens R, Sutharsan S, Welte T, Gust T, Kaiser A, Hoffmann A, Ratjen F, Rowe S. EPS1.3 Safety, tolerability and early signs of efficacy with riociguat for the treatment of adult Phe508del homozygous cystic fibrosis patients: study design and rationale for the Rio-CF study. J Cyst Fibros 2017. [DOI: 10.1016/s1569-1993(17)30276-x] [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: 10/19/2022]
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Lühr A, Gantz S, Schellhammer S, Zarini O, Zeil K, Schramm U, Hoffmann A. PV-0421: In-magnet measurement setup for proof-of-concept and commissioning of MR integrated proton therapy. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30863-0] [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: 11/16/2022]
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Schellhammer S, Oborn B, Lühr A, Gantz S, Wohlfahrt P, Bussmann M, Hoffmann A. OC-0343: Experimental setup to measure magnetic field effects of proton dose distributions: simulation study. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30785-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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50
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Troost E, Menkel S, Enghardt W, Hytry J, Kunath D, Makocki S, Hoffmann A, Jølck R. EP-1710: Chemical stability of BioXmark® following normofractionated and single-fraction proton beam therapy. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)32242-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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