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803 results on '"Lindner, S"'

1. Probe Design Optimization for Time-Domain NIROT 'Pioneer' System for Imaging the Oxygenation of the Preterm Brain

Author

Di Costanzo-Mata, A., Jiang, J., Lindner, S., Zhang, C., Charbon, E., Wolf, M., Kalyanov, A., Crusio, Wim E., Series Editor, Dong, Haidong, Series Editor, Radeke, Heinfried H., Series Editor, Rezaei, Nima, Series Editor, Steinlein, Ortrud, Series Editor, Xiao, Junjie, Series Editor, Nemoto, Edwin M., editor, Harrison, Eileen M., editor, Pias, Sally C., editor, Bragin, Denis E., editor, Harrison, David K., editor, and LaManna, Joseph C., editor

Published
2021
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2. In Phantom Validation of Time-Domain Near-Infrared Optical Tomography Pioneer for Imaging Brain Hypoxia and Hemorrhage

Author

Jiang, J., Lindner, S., Di Costanzo-Mata, A., Zhang, C., Charbon, E., Wolf, M., Kalyanov, A., Crusio, Wim E., Series Editor, Dong, Haidong, Series Editor, Radeke, Heinfried H., Series Editor, Rezaei, Nima, Series Editor, Steinlein, Ortrud, Series Editor, Xiao, Junjie, Series Editor, Nemoto, Edwin M., editor, Harrison, Eileen M., editor, Pias, Sally C., editor, Bragin, Denis E., editor, Harrison, David K., editor, and LaManna, Joseph C., editor

Published
2021
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3. Time-Resolved NIROT ‘Pioneer’ System for Imaging Oxygenation of the Preterm Brain: Preliminary Results

Author

Di Costanzo-Mata, A., Jiang, J., Lindner, S., Ahnen, L., Zhang, C., Sánchez-Majos, S., Wolf, M., Charbon, E., Kalyanov, A., Crusio, Wim E., Series Editor, Dong, Haidong, Series Editor, Lambris, John D., Series Editor, Radeke, Heinfried H., Series Editor, Rezaei, Nima, Series Editor, Ryu, Pan-Dong, editor, LaManna, Joseph C., editor, Harrison, David K., editor, and Lee, Sang-Suk, editor

Published
2020
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4. Hydrogen effects in X30MnCrN16‐14 austenitic steel

Author

Michler, T., Bruder, E., Lindner, S., Michler, T., Bruder, E., and Lindner, S.

Abstract

Chrome‐manganese‐nitrogen austenitic steels show a technically relevant combination of proprties, i. e. high strength, high ductility, non magnetic and good corrosion resistance at costs being much lower compared to conventional chrome‐nickel austenitic stainless steels which are widely used for hydrogen applications. Hydrogen environment embrittlement of steel X30MnCrN16‐14 is investigated by slow displacement rate tensile testing in hydrogen atmosphere at 10 MPa and room temperature. Compared to the values in air, the elongation at fracture as well as the reduction of area are severely reduced in the presence of hydrogen. The microstructure is characterized in detail and the deformation modes are previously reported. It is assumed that the inherent planar deformation modes are facilitated by hydrogen resulting in premature failure.

Published
2024

9. Multispectral Near-Infrared Optical Tomography for Cancer Hypoxia Study in Mice

Author

Kalyanov, A., Germanier, C., Ahnen, L., Jiang, J., Lindner, S., Di Costanzo Mata, A., Sánchez Majos, S., Rudin, M., Wolf, M., COHEN, IRUN R., Editorial Board Member, LAJTHA, ABEL, Editorial Board Member, LAMBRIS, JOHN D., Editorial Board Member, PAOLETTI, RODOLFO, Editorial Board Member, REZAEI, NIMA, Editorial Board Member, Thews, Oliver, editor, LaManna, Joseph C., editor, and Harrison, David K., editor

Published
2018
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17. Specificity of 18_kDa translocator protein tracer retention in single cells and non-cellular compartments of experimental glioblastoma

Author

Hörmann, L., additional, Kirchleitner, S. V., additional, Blobner, J., additional, Wind-Mark, K., additional, Holzgreve, A., additional, Quach, S., additional, Englert, A., additional, Hummel, S., additional, Lindner, S., additional, Joseph, E., additional, Bartenstein, P., additional, Tonn, J. C., additional, von Baumgarten, L., additional, Albert, N. L., additional, Brendel, M., additional, and Bartos, L. M., additional

Published
2023
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18. Specific NPC1 loss in microglia of the mouse brain leads to neuroinflammation and results in synaptic loss

Author

Hummel, S., additional, Dinkel, L., additional, Bartos, L. M., additional, Wind-Mark, K., additional, Slemann, L., additional, Kunze, L., additional, Englert, A., additional, Hörmann, L., additional, Gnörich, J., additional, Lindner, S., additional, Bartenstein, P., additional, Albert, N. L., additional, Brendel, M., additional, and Tahirovic, S., additional

Published
2023
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19. Ansätze zur Volumenbestimmung von Meningeomen in der PET/CT Bildgebung mit dem neuartigen Tracer F-18-SiTATE

Author

Kunte, S. C., additional, Unterrainer, L. M., additional, Delker, A., additional, Lindner, S., additional, Brendel, M., additional, Holzgreve, A., additional, Kunz, W. G., additional, Cyran, C., additional, Ricke, J., additional, Jurkschat, K., additional, Wängler, C., additional, Wängler, B., additional, Schirrmacher, R., additional, Niyazi, M., additional, Tonn, J. C., additional, Beyer, L., additional, Bartenstein, P., additional, Albert, N. L., additional, and Unterrainer, M., additional

Published
2023
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20. Änderung von Proliferation und Apoptose nach Strahlenexposition: Longitudinale PET-Studie im Mausmodell

Author

Meindl, M., additional, Bläske, A., additional, Lindner, S., additional, Steiger, K., additional, Lauber, K., additional, Felbermeier, M., additional, Oos, R., additional, von Ungern-Sternberg, B., additional, Schüle, S., additional, Majewski, M., additional, Port, M., additional, Ziegler, S., additional, and Bartenstein, P., additional

Published
2023
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21. Microglia drive TSPO PET signal increases in a tauopathy mouse model

Author

Englert, A. L., additional, Bartos, L. M., additional, Palleis, C., additional, Hummel, S., additional, Hörmann, L., additional, Schlaphoff, L., additional, Kunze, L. H., additional, Gnörich, J., additional, Wind-Mark, K., additional, Lindner, S., additional, Bartenstein, P., additional, Simons, M., additional, Ziegler, S., additional, Albert, N. L., additional, Levin, J., additional, and Brendel, M., additional

Published
2023
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22. The cofactor challenge in synthetic methylotrophy: bioengineering and industrial applications

Author

Krüsemann, J., Rainaldi, V., Cotton, C., Claassens, N., and Lindner, S.

Abstract

Methanol is a promising feedstock for industrial bioproduction: it can be produced renewably and has high solubility and limited microbial toxicity. One of the key challenges for its bio-industrial application is the first enzymatic oxidation step to formaldehyde. This reaction is catalysed by methanol dehydrogenases (MDH) that can use NAD+, O2 or pyrroloquinoline quinone (PQQ) as an electron acceptor. While NAD-dependent MDH are simple to express and have the highest energetic efficiency, they exhibit mediocre kinetics and poor thermodynamics at ambient temperatures. O2-dependent methanol oxidases require high oxygen concentrations, do not conserve energy and thus produce excessive heat as well as toxic H2O2. PQQ-dependent MDH provide a good compromise between energy efficiency and good kinetics that support fast growth rates without any drawbacks for process engineering. Therefore, we argue that this enzyme class represents a promising solution for industry and outline engineering strategies for the implementation of these complex systems in heterologous hosts.

Published
2023

26. Public health and clinical approach to proactive management of frailty in multidimensional arena

Author

Roller-Wirnsberger R., Liotta G., Lindner S., Iaccarino G., de Luca V., Geurden B., Maggio M., Longobucco Y., Vollenbroek-Hutten M., Cano A., Carriazo A. M., Goossens E., Cacciatore F., Triassi M., Damico M., Illario M., Roller-Wirnsberger, R, Liotta, G, Lindner, S, Iaccarino, G, De Luca, V, Geurden, B, Maggio, M, Longobucco, Y, Vollenbroek-Hutten, M, Cano, A, Carriazo, A M, Goossens, E, Cacciatore, F, Triassi, M, D'Amico, M, Illario, M, Roller-Wirnsberger R., Liotta G., Lindner S., Iaccarino G., de Luca V., Geurden B., Maggio M., Longobucco Y., Vollenbroek-Hutten M., Cano A., Carriazo A.M., Goossens E., Cacciatore F., Triassi M., Damico M., and Illario M.

Subjects
Europe, Healthy Aging, Aging, Public health, Frailty, Clinical management, EIPonAHA, Humans, Human medicine, Person-centred, Human, Aged
Abstract

Background. Demographic changes have forced communities and people themselves to reshape ageing concepts and approaches and try to develop actions towards active and healthy ageing. In this context, the European Commission launched different private-public partnerships to develop new solutions and answers on questions related to this topic. The European Innovation Partnership on Active and Healthy Ageing, including topic related action groups as well reference sites committed towards a common action to facilitate active and healthy ageing, has contributed key elements for interventions, scaled up best practices and evaluated impact of their action to drive innovation across many regions in Europe over the past years. Methods. This paper describes action taken by A3 action group in the European Innovation Partnership on Active and Healthy Ageing. This paper gives an overview of how the partnership combined the view on frailty coming from public health as well as the clinical management. Results. Within different European regions, to tackle frailty, EIPonAHA partners have conceptualized functional decline and frailty, making use of good practice models working well on community programs. The A3 Group of EIPonAHA has worked alongside a process of innovation, targeting all ageing citizens with the clear goal of involving communities in the preventive approach. Conclusion. Engagement needs of older people with a focus on functionally rather than disease management as primary objective is considered as an overarching concept, also embracing adherence, compliance, empowerment, health literacy, shared decision-making, and activation. Furthermore, training of staff working with ageing people across all sectors needs to be implemented and evaluated in future studies.

Published
2021

30. Desynchronization of microglial activity is closely associated with cognitive decline in Alzheimer’s disease

Author

Zatcepin, A., additional, Xiang, X., additional, Parhizkar, S., additional, Gnörich, J., additional, Grosch, M., additional, Wind, K., additional, Shi, Y., additional, Beyer, L., additional, Biechele, G., additional, Eckenweber, F., additional, Wiedemann, T., additional, Lindner, S., additional, Rominger, A., additional, Bartenstein, P., additional, Willem, M., additional, Tahirovic, S., additional, Herms, J., additional, Haass, C., additional, Ziegler, S., additional, and Brendel, M., additional

Published
2022
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31. Feasibility of 68Ga-FAPI-46 PET/CT for detection of nodal and hematogenous spread in urothelial carcinoma

Author

Unterrainer, L.M., additional, Lindner, S., additional, Eismann, L., additional, Casuscelli, J., additional, Gildehaus, F.J., additional, Bui, N.V., additional, Albert, N.L., additional, Holzgreve, A., additional, Todica, A., additional, Brendel, M., additional, Beyer, L., additional, Cyran, C.C., additional, Karl, A., additional, Stief, C.G., additional, Ledderose, S., additional, Unterrainer, M., additional, Bartenstein, P., additional, Kretschmer, A., additional, and Wenter, V., additional

Published
2022
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32. Assessment of 18-F-D2-Deprenyl (18-F-DED) as a Distinctive Biomarker in Multiple System Atrophy and Idiopathic Parkinson’s Disease

Author

Vogler, L., additional, Katzdobler, S., additional, Eckenweber, F., additional, Palleis, C., additional, Lindner, S., additional, Fietzek, U., additional, Nuscher, B., additional, Mueller, A., additional, Koglin, N., additional, Stephens, A., additional, Haass, C., additional, Levin, J., additional, and Brendel, M., additional

Published
2022
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33. Comparison of somatostatin receptor expression in patients with neuroendocrine tumours with and without somatostatin analogue treatment imaged with [18F]SiTATE

Author

Eschbach, R.S., additional, Hofmann, M., additional, Späth, L., additional, Unterrainer, L., additional, Delker, A., additional, Lindner, S., additional, Wängler, C., additional, Wängler, B., additional, Schirrmacher, R., additional, Tiling, R., additional, Brendel, M., additional, Todica, A., additional, Ilhan, H., additional, Wenter, V., additional, Dekorsy, F., additional, Grawe, F., additional, Rübenthaler, J., additional, Cyran, C.C., additional, Spitzweg, C., additional, Auernhammer, C.J., additional, Bartenstein, P., additional, and Beyer, L., additional

Published
2022
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34. Artificial Intelligence for early identification of Amyloid positivity in transgenic Alzheimer mice

Author

Eckenweber, F., additional, Eyring, L., additional, Krammer, S., additional, Krammer, C., additional, Li, Y., additional, Jakob, N., additional, Köhler, M., additional, Kunze, L., additional, Wind, K., additional, Beyer, L., additional, Biechele, G., additional, Lindner, S., additional, Gildehaus, F.J., additional, von Ungern-Sternberg, B., additional, Ziegler, S., additional, Boening, G., additional, Baumann, K., additional, Herms, J., additional, Bartenstein, P., additional, and Brendel, M., additional

Published
2022
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35. Feasibility of 68Ga-FAPI-46 PET/CT for detection of metastatic spread in urothelial carcinoma

Author

Unterrainer, L.M., primary, Lindner, S., additional, Eismann, L., additional, Casuscelli, J., additional, Gildehaus, F-J., additional, Bui, N.V., additional, Albert, N.L., additional, Holzgreve, A., additional, Todica, A., additional, Brendel, M., additional, Beyer, L., additional, Cyran, C.C., additional, Karl, A., additional, Stief, C.G., additional, Ledderose, S.T., additional, Unterrainer, M., additional, Bartenstein, P., additional, Wenter, V., additional, and Kretschmer, A., additional

Published
2022
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36. Differential Spatial Distribution of TSPO or Amino Acid PET Signal and MRI Contrast Enhancement in Gliomas

Author

Guido Böning, Ingrisch M, Unterrainer M, NL Albert, Sibylle Ziegler, Quach S, Peter Bartenstein, Lindner S, Dekorsy Fj, Adrien Holzgreve, Rainer Rupprecht, L Kaiser, Brendel M, Delker A, von Baumgarten L, JC Tonn, and Julia Brosch-Lenz

Subjects
chemistry.chemical_classification, Spatial correlation, Contrast enhancement, business.industry, Spatial distribution, medicine.disease, Signal, Amino acid, Nuclear magnetic resonance, Text mining, nervous system, chemistry, Glioma, medicine, business, Differential (mathematics), oncology_oncogenics
Abstract

In this study dual PET and contrast enhanced MRI were combined to investigate their correlation per voxel in patients at initial diagnosis with suspected glioblastoma. Correlation with contrast enhancement (CE) as an indicator of BBB leakage was further used to evaluate whether PET signal is likely caused by BBB disruption alone, or rather attributable to specific binding after BBB passage. PET images with [18F]GE180 and the amino acid [18F]FET were acquired and normalized to healthy background (TBR). Contrast enhanced images were normalized voxel by voxel with the pre-contrast T1-weighted MRI to generate relative CE values (rCE). Voxel-wise analysis revealed a high PET signal even within the sub-volumes without detectable CE. No to moderate correlation of rCE with TBR voxel-values and a small overlap as well as a larger distance of the hotspots delineated in rCE and TBR-PET images were detected. In contrast, voxel-wise correlation between both PET modalities was strong for most patients and hotspots showed a moderate overlap and distance. The high PET signal in tumor sub-volumes without CE observed in voxel-wise analysis as well as the discordant hotspots emphasize the specificity of the PET signals and the relevance of combined differential information from dual PET and MRI images.

Published
2021
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41. In Phantom Validation of Time-Domain Near-Infrared Optical Tomography Pioneer for Imaging Brain Hypoxia and Hemorrhage

Author

Nemoto, Edwin M, Nemoto, E M ( Edwin M ), Jiang, J, Lindner, S, Di Costanzo-Mata, A, Zhang, C, Charbon, E, Wolf, M, Kalyanov, A, Nemoto, Edwin M, Nemoto, E M ( Edwin M ), Jiang, J, Lindner, S, Di Costanzo-Mata, A, Zhang, C, Charbon, E, Wolf, M, and Kalyanov, A

Abstract

The neonatal brain is a vulnerable organ, and lesions due to hemorrhage and/or ischemia occur frequently in preterm neonates. Even though neuroprotective therapies exist, there is no tool available to detect the ischemic lesions. To address this problem, we have recently designed and built the new time-domain near-infrared optical tomography (TD NIROT) system - Pioneer. Here we present the results of a phantom study of the system performance. We used silicone phantoms to mimic risky situations for brain lesions: hemorrhage and hypoxia. Employing Pioneer, we were able to reconstruct accurately both position and optical properties of these inhomogeneities.

Published
2021

47. Impact of TSPO polymorphism on [18F]GE-180binding in healthy and pseudoreference tissue of neurooncological and neurodegenerative disorders

Author

Vettermann, FJ, additional, Harris, S, additional, Schmitt, J, additional, Unterrainer, M, additional, Lindner, S, additional, Rauchmann, BS, additional, Palleis, C, additional, Milenkovic, VM, additional, Wetzel, CH, additional, Rupprecht, R, additional, Perneczky, R, additional, Höglinger, GU, additional, Levin, J, additional, Haass, C, additional, Tonn, JC, additional, Niyazi, M, additional, Bartenstein, P, additional, Albert, NL, additional, and Brendel, M, additional

Published
2021
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48. Dosimetry and optimal time frame of [18F]SiTATE PET/CT in Patients with Neuroendocrine Carcinoma

Author

Beyer, L, additional, Gosewisch, A, additional, Lindner, S, additional, Völter, F, additional, Mittlmeier, LM, additional, Tiling, R, additional, Cyran, CC, additional, Unterrainer, M, additional, Rübenthaler, J, additional, Auernhammer, CJ, additional, Spitzweg, C, additional, Böning, G, additional, Gildehaus, FJ, additional, Jurkschaft, K, additional, Wängler, C, additional, Waengler, B, additional, Schirrmacher, R, additional, Todica, A, additional, Bartenstein, P, additional, and Ilhan, H, additional

Published
2021
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49. An 'energy-auxotroph' E. coli provides an in vivo platform for assessing NADH regeneration systems

Author

Wenk, S., Schann, K., He, H., Rainaldi, V., Kim, S., Lindner, S., and Bar-Even, A.

Abstract

An efficient in vivo regeneration of the primary cellular resources NADH and ATP is vital for optimizing the production of value-added chemicals and enabling the activity of synthetic pathways. Currently, such regeneration routes are tested and characterized mainly in vitro before being introduced into the cell. However, in vitro measurements could be misleading as they do not reflect enzyme activity under physiological conditions. Here, we construct an in vivo platform to test and compare NADH regeneration systems. By deleting dihydrolipoyl dehydrogenase in Escherichia coli, we abolish the activity of pyruvate dehydrogenase and 2-ketoglutarate dehydrogenase. When cultivated on acetate, the resulting strain is auxotrophic to NADH and ATP: acetate can be assimilated via the glyoxylate shunt but cannot be oxidized to provide the cell with reducing power and energy. This strain can therefore serve to select for and test different NADH regeneration routes. We exemplify this by comparing several NAD-dependent formate dehydrogenases and methanol dehydrogenases. We identify the most efficient enzyme variants under in vivo conditions and pinpoint optimal feedstock concentrations that maximize NADH biosynthesis while avoiding cellular toxicity. Our strain thus provides a useful platform for comparing and optimizing enzymatic systems for cofactor regeneration under physiological conditions. This article is protected by copyright. All rights reserved.

Published
2020

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