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Schraen-Maschke S, Duhamel A, Vidal JS, Ramdane N, Vaudran L, Dussart C, Buée L, Sablonnière B, Delaby C, Allinquant B, Gabelle A, Bombois S, Lehmann S, Hanon O. The free plasma amyloid Aβ 1-42/Aβ 1-40 ratio predicts conversion to dementia for subjects with mild cognitive impairment with performance equivalent to that of the total plasma Aβ 1-42/Aβ 1-40 ratio. The BALTAZAR study. Neurobiol Dis 2024; 193:106459. [PMID: 38423192 DOI: 10.1016/j.nbd.2024.106459] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND AND PURPOSE Blood-based biomarkers are a non-invasive solution to predict the risk of conversion of mild cognitive impairment (MCI) to dementia. The utility of free plasma amyloid peptides (not bound to plasma proteins and/or cells) as an early indicator of conversion to dementia is still debated, as the results of studies have been contradictory. In this context, we investigated whether plasma levels of the free amyloid peptides Aβ1-42 and Aβ1-40 and the free plasma Aβ1-42/Aβ1-40 ratio are associated with the conversion of MCI to dementia, in particular AD, over three years of follow-up in a subgroup of the BALTAZAR cohort. We also compared their predictive value to that of total plasma Aβ1-42 and Aβ1-40 levels and the total plasma Aβ1-42/Aβ1-40 ratio. METHODS The plasma Aβ1-42 and Aβ1-40 peptide assay was performed using the INNO-BIA kit (Fujirebio Europe). Free amyloid levels (defined by the amyloid fraction directly accessible to antibodies of the assay) were obtained with the undiluted plasma, whereas total amyloid levels were obtained after the dilution of plasma (1/3) with a denaturing buffer. Free and total Aβ1-42 and Aβ1-40 levels were measured at inclusion for a subgroup of participants (N = 106) with mild cognitive impairment (MCI) from the BALTAZAR study (a large-scale longitudinal multicenter cohort with a three-year follow-up). Associations between conversion and the free/total plasma Aβ1-42 and Aβ1-40 levels and Aβ1-42/Aβ1-40 ratio were analyzed using logistic and Cox Proportional Hazards models. Demographic, clinical, cognitive (MMSE, ADL and IADL), APOE, and MRI characteristics (relative hippocampal volume) were compared using non-parametric (Mann-Whitney) or parametric (Student) tests for quantitative variables and Chi-square or Fisher exact tests for qualitative variables. RESULTS The risk of conversion to dementia was lower for patients in the highest quartile of free plasma Aβ1-42/Aβ1-40 (≥ 25.8%) than those in the three lower quartiles: hazard ratio = 0.36 (95% confidence interval [0.15-0.87]), after adjustment for age, sex, education, and APOE ε4 (p-value = 0.022). This was comparable to the risk of conversion in the highest quartile of total plasma Aβ1-42/Aβ1-40: hazard ratio = 0.37 (95% confidence interval [0.16-0.89], p-value = 0.027). However, while patients in the highest quartile of total plasma Aβ1-42/Aβ1-40 showed higher MMSE scores and a higher hippocampal volume than patients in the three lowest quartiles of total plasma Aβ1-42/Aβ1-40, as well as normal CSF biomarker levels, the patients in the highest quartile of free plasma Aβ1-42/Aβ1-40 did not show any significant differences in MMSE scores, hippocampal volume, or CSF biomarker levels relative to the three lowest quartiles of free plasma Aβ1-42/Aβ1-40. CONCLUSION The free plasma Aβ1-42/Aβ1-40 ratio is associated with a risk of conversion from MCI to dementia within three years, with performance comparable to that of the total plasma Aβ1-42/Aβ1-40 ratio. Threshold levels of the free and total plasma Aβ1-42/Aβ1-40 ratio could be determined, with a 60% lower risk of conversion for patients above the threshold than those below.
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Affiliation(s)
- S Schraen-Maschke
- Univ. Lille, Inserm, CHU Lille, UMR-S1172, LiCEND, Lille Neuroscience & Cognition, LabEx DISTALZ, Lille, France.
| | - A Duhamel
- Univ. Lille, CHU Lille, ULR 2694-METRICS: Évaluation des Technologies de Santé et des Pratiques Médicales, Lille, France
| | - J S Vidal
- Université de Paris, EA 4468 and APHP, Hôpital Broca, Memory Resource and Research Centre of de Paris-Broca-Ile de France, Paris, France
| | - N Ramdane
- Univ. Lille, CHU Lille, ULR 2694-METRICS: Évaluation des Technologies de Santé et des Pratiques Médicales, Lille, France
| | - L Vaudran
- Univ. Lille, Inserm, CHU Lille, UMR-S1172, LiCEND, Lille Neuroscience & Cognition, LabEx DISTALZ, Lille, France
| | - C Dussart
- Univ. Lille, Inserm, CHU Lille, UMR-S1172, LiCEND, Lille Neuroscience & Cognition, LabEx DISTALZ, Lille, France
| | - L Buée
- Univ. Lille, Inserm, CHU Lille, UMR-S1172, LiCEND, Lille Neuroscience & Cognition, LabEx DISTALZ, Lille, France
| | - B Sablonnière
- Univ. Lille, Inserm, CHU Lille, UMR-S1172, LiCEND, Lille Neuroscience & Cognition, LabEx DISTALZ, Lille, France
| | - C Delaby
- LBPC-PPC, Université de Montpellier, INM INSERM, IRMB CHU de Montpellier, Montpellier, France
| | - B Allinquant
- UMR-S1266, Université Paris Cité, Institute of Psychiatry and Neurosciences, Inserm, Paris, France
| | - A Gabelle
- CMRR, Université de Montpellier, INM INSERM, CHU de Montpellier, Montpellier, France
| | - S Bombois
- Univ. Lille, Inserm, CHU Lille, UMR-S1172, LiCEND, Lille Neuroscience & Cognition, LabEx DISTALZ, Lille, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Département de Neurologie, Centre des Maladies Cognitives et Comportementales, GH Pitié-Salpêtrière, Paris, France
| | - S Lehmann
- LBPC-PPC, Université de Montpellier, INM INSERM, IRMB CHU de Montpellier, Montpellier, France
| | - O Hanon
- Université de Paris, EA 4468 and APHP, Hôpital Broca, Memory Resource and Research Centre of de Paris-Broca-Ile de France, Paris, France.
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Ungerer JH, Pally A, Kononov A, Lehmann S, Ridderbos J, Potts PP, Thelander C, Dick KA, Maisi VF, Scarlino P, Baumgartner A, Schönenberger C. Strong coupling between a microwave photon and a singlet-triplet qubit. Nat Commun 2024; 15:1068. [PMID: 38316779 PMCID: PMC10844229 DOI: 10.1038/s41467-024-45235-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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/18/2024] [Indexed: 02/07/2024] Open
Abstract
Combining superconducting resonators and quantum dots has triggered tremendous progress in quantum information, however, attempts at coupling a resonator to even charge parity spin qubits have resulted only in weak spin-photon coupling. Here, we integrate a zincblende InAs nanowire double quantum dot with strong spin-orbit interaction in a magnetic-field resilient, high-quality resonator. The quantum confinement in the nanowire is achieved using deterministically grown wurtzite tunnel barriers. Our experiments on even charge parity states and at large magnetic fields, allow us to identify the relevant spin states and to measure the spin decoherence rates and spin-photon coupling strengths. We find an anti-crossing between the resonator mode in the single photon limit and a singlet-triplet qubit with a spin-photon coupling strength of g/2π = 139 ± 4 MHz. This coherent coupling exceeds the resonator decay rate κ/2π = 19.8 ± 0.2 MHz and the qubit dephasing rate γ/2π = 116 ± 7 MHz, putting our system in the strong coupling regime.
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Affiliation(s)
- J H Ungerer
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland.
- Swiss Nanoscience Institute, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland.
| | - A Pally
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland.
| | - A Kononov
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland
| | - S Lehmann
- Solid State Physics and NanoLund, Lund University, Box 118, S-22100, Lund, Sweden
| | - J Ridderbos
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland
- MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
| | - P P Potts
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland
- Swiss Nanoscience Institute, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland
| | - C Thelander
- Solid State Physics and NanoLund, Lund University, Box 118, S-22100, Lund, Sweden
| | - K A Dick
- Centre for Analysis and Synthesis, Lund University, Box 124, S-22100, Lund, Sweden
| | - V F Maisi
- Solid State Physics and NanoLund, Lund University, Box 118, S-22100, Lund, Sweden
| | - P Scarlino
- Institute of Physics and Center for Quantum Science and Engineering, Ecole Polytechnique Fédérale de Lausanne, CH-1015, Lausanne, Switzerland
| | - A Baumgartner
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland
- Swiss Nanoscience Institute, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland
| | - C Schönenberger
- Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland
- Swiss Nanoscience Institute, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland
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Clua Provost C, Auboyer L, Rovelet-Lecrux A, Monzo C, Schob E, Andreux F, Quittet C, Lehmann S, Wallon D, Crozet C. Generation of induced pluripotent stem cell lines IRMBi003-A and IRMBi003-B from a healthy donor to model Alzheimer's disease. Stem Cell Res 2023; 73:103250. [PMID: 37979430 DOI: 10.1016/j.scr.2023.103250] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/24/2023] [Accepted: 11/10/2023] [Indexed: 11/20/2023] Open
Abstract
Induced Pluripotent Stem Cell (iPSC) lines derived from healthy individuals are helpful and essential tools for disease modelling. Here, we described the reprogramming of skin fibroblasts obtained from a healthy 59-year-old individual without Alzheimer's disease. The generated iPSC lines have a normal karyotype, expressed pluripotency markers, and demonstrated the ability to differentiate into the three germ layers. The iPSC lines will be used as controls to study Alzheimer's disease mechanisms.
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Affiliation(s)
- C Clua Provost
- Institute for Neurosciences of Montpellier, Univ Montpellier, INSERM U1298, Montpellier, France
| | - L Auboyer
- Institute for Regenerative Medicine and Biotherapy (IRMB), Univ Montpellier, INSERM, CHU Montpellier, Montpellier, France
| | - A Rovelet-Lecrux
- Normandie Univ, UNIROUEN, INSERM U1245, Rouen University Hospital, Department of Genetics and CNR-MAJ, Normandy Center for Genomic and Personalized Medicine, F 76000 Rouen, France
| | - C Monzo
- Institute for Neurosciences of Montpellier, Univ Montpellier, INSERM U1298, Montpellier, France
| | - E Schob
- Institute for Neurosciences of Montpellier, Univ Montpellier, INSERM U1298, Montpellier, France
| | - F Andreux
- Institute for Neurosciences of Montpellier, Univ Montpellier, INSERM U1298, Montpellier, France
| | - C Quittet
- Institute for Neurosciences of Montpellier, Univ Montpellier, INSERM U1298, Montpellier, France
| | - S Lehmann
- Institute for Neurosciences of Montpellier, Univ Montpellier, INSERM U1298, Montpellier, France
| | - D Wallon
- Normandie Univ, UNIROUEN, INSERM U1245, Rouen University Hospital, Department of Neurology and CNR-MAJ, Normandy Center for Genomic and Personalized Medicine, F 76000 Rouen, France
| | - C Crozet
- Institute for Neurosciences of Montpellier, Univ Montpellier, INSERM U1298, Montpellier, France.
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Provost CC, Auboyer L, Rovelet-Lecrux A, Monzo C, Schob E, Lehmann S, Wallon D, Crozet C. Establishment of induced pluripotent stem cells IRMBi005-A from a patient with sporadic Alzheimer's disease. Stem Cell Res 2023; 72:103216. [PMID: 37783001 DOI: 10.1016/j.scr.2023.103216] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/19/2023] [Accepted: 09/23/2023] [Indexed: 10/04/2023] Open
Abstract
Alzheimer's disease (AD) is a progressive neurological disorder and the most common form of dementia worldwide. Sporadic Alzheimer's disease (sAD) cases are the main forms, over 95% of AD cases, but still poorly understood. Thereby there is a crucial need to develop in vitro models for studying this multifactorial disorder. Here, we report the reprogramming of skin fibroblasts from a 57-years-old male donor. The new generated iPSC cell line has a normal karyotype and, is pluripotent since it demonstrates the ability to differentiate in vitro into the three germ layers. This iPSC line will be used to understand pathological mechanisms of sAD.
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Affiliation(s)
| | - L Auboyer
- Institute for Regenerative Medicine and Biotherapy (IRMB), Univ Montpellier, INSERM, CHU Montpellier, Montpellier, France
| | - A Rovelet-Lecrux
- Normandie Univ, UNIROUEN, INSERM U1245, Rouen University Hospital, Department of Genetics and CNR-MAJ, Normandy Center for Genomic and Personalized Medicine, F 76000 Rouen, France
| | - C Monzo
- INM, Univ Montpellier, INSERM, Montpellier, France
| | - Eliot Schob
- INM, Univ Montpellier, INSERM, Montpellier, France
| | - S Lehmann
- INM, Univ Montpellier, INSERM, Montpellier, France
| | - D Wallon
- Normandie Univ, UNIROUEN, INSERM U1245, Rouen University Hospital, Department of Neurology and CNR-MAJ, Normandy Center for Genomic and Personalized Medicine, F 76000 Rouen, France
| | - C Crozet
- INM, Univ Montpellier, INSERM, Montpellier, France; Institute for Regenerative Medicine and Biotherapy (IRMB), Univ Montpellier, INSERM, CHU Montpellier, Montpellier, France
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Delaby C, Hirtz C, Lehmann S. Overview of the blood biomarkers in Alzheimer's disease: Promises and challenges. Rev Neurol (Paris) 2023; 179:161-172. [PMID: 36371265 DOI: 10.1016/j.neurol.2022.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 11/11/2022]
Abstract
The increasing number of people with advanced Alzheimer's disease (AD) represents a significant psychological and financial cost to the world population. Accurate detection of the earliest phase of preclinical AD is of major importance for the success of preventive and therapeutic strategies (Cullen et al., 2021). Advances in analytical techniques have been essential for the development of sensitive, specific and reliable diagnostic tests for AD biomarkers in biological fluids (cerebrospinal fluid and blood). Blood biomarkers hold promising potential for early and minimally invasive detection of AD, but also for differential diagnosis of dementia and for monitoring the course of the disease. The aim of this review is to provide an overview of current blood biomarkers of AD, from tau proteins and amyloid peptides to biomarkers of neuronal degeneration and inflammation, reactive and metabolic factors. We thus discuss the informative value of currently candidate blood biomarkers and their potential to be integrated into clinical practice for the management of AD in the near future.
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Affiliation(s)
- C Delaby
- LBPC-PPC, Université Montpellier, CHU Montpellier, INM Inserm, Montpellier, France; Hospital de la Santa Creu i Sant Pau - Biomedical Research Institute Sant Pau - Universitat Autònoma de Barcelona, Barcelona, Spain
| | - C Hirtz
- LBPC-PPC, Université Montpellier, CHU Montpellier, INM Inserm, Montpellier, France
| | - S Lehmann
- LBPC-PPC, Université Montpellier, CHU Montpellier, INM Inserm, Montpellier, France.
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Chen L, Eriksson A, Weström S, Pandzic T, Lehmann S, Cavelier L, Landegren U. 210P Ultra-sensitive monitoring of leukemia patients using superRCA mutation detection assays. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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Chen L, Weström S, Eriksson A, Pandzic T, Lehmann S, Cavelier L, Landegren U. 107P Ultra-sensitive monitoring mutations in cancer patients using superRCA mutation detection assays. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.09.108] [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: 11/01/2022] Open
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Butz M, Lehmann S, Pliske J, Pfeifer A, Scharf FMT, Schon G, Renger F, Gulasova M, Mackova Z, Bundzelova K, Vladarova M, Olah M, Kozon V, Luliak M, Kmit I, Krcmery V, Gottschalk R, Altrad A, Mrazova M, Kalawski E, Claudi C, Hardy M, Gaul C, Grauss P, Muller A, Grossmann K. Physiotherapy & Psychosocial Rehabilitation in Postcovid & Postconflict Era: New Roles with same Staff? (dispatch). CSWHI 2022. [DOI: 10.22359/cswhi_13_5_09] [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: 11/23/2022]
Abstract
Waves of COVID-19 have been managed successfully within US, EU, Southeast Asia and Latin America, however, South Asia and Sub-saharan Africa still suffer new variants and EU fights with UK and United States of ,,new waves of old disease“, postcovide or long covide syndrome. The aim of this communication and research is to prepare our auditors for the size and extent of postcovid systems and the importance of non-doctors and non-medicine experts in management of its consequences.
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Chen L, Eriksson A, Weström S, Pandzic T, Lehmann S, Cavelier L, Landegren U. 629P Ultra-sensitive monitoring of leukemia patients using superRCA mutation detection assays. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Maris I, Dölle‐Bierke S, Renaudin J, Lange L, Koehli A, Spindler T, Hourihane J, Scherer K, Nemat K, Kemen C, Neustädter I, Vogelberg C, Reese T, Yildiz I, Szepfalusi Z, Ott H, Straube H, Papadopoulos NG, Hämmerling S, Staden U, Polz M, Mustakov T, Cichocka‐Jarosz E, Cocco R, Fiocchi AG, Fernandez‐Rivas M, Worm M, Grünhagen J, Wittenberg M, Beyer K, Henschel A, Küper S, Möser A, Fuchs T, Ruëff F, Wedi B, Hansen G, Buck T, Büsselberg J, Drägerdt R, Pfeffer L, Dickel H, Körner‐Rettberg C, Merk H, Lehmann S, Bauer A, Nordwig A, Zeil S, Hannapp C, Wagner N, Rietschel E, Hunzelmann N, Huseynow I, Treudler R, Aurich S, Prenzel F, Klimek L, Pfaar O, Reider N, Aberer W, Varga E, Bogatu B, Schmid‐Grendelmeier P, Guggenheim R, Riffelmann F, Kreft B, Kinaciyan K, Hartl L, Ebner C, Horak F, Brehler R, Witte J, Buss M, Hompes S, Bieber T, Gernert S, Bücheler M, Rabe U, Brosi W, Nestoris S, Hawranek T, Lang R, Bruns R, Pföhler C, Eng P, Schweitzer‐Krantz S, Meller S, Rebmann H, Fischer J, Stichtenoth G, Thies S, Gerstlauer M, Utz P, Neustädter I, Klinge J, Volkmuth S, Plank‐Habibi S, Schilling B, Kleinheinz A, Brückner A, Schäkel K, Manolaraki I, Kowalski M, Solarewicz‐Madajek K, Tscheiller S, Seidenberg J, Cardona V, Garcia B, Bilo M, Cabañes Higuero N, Vega Castro A, Poziomkowska‐Gęsicka I, Büsing S, Virchow C, Christoff G, Jappe U, Müller S, Knöpfel F, Correard A, Rogala B, Montoro A, Brandes A, Muraro A, Zimmermann N, Hernandez D, Minale P, Niederwimmer J, Zahel B, Dahdah L, Arasi S, Reissig A, Eitelberger F, Asero R, Hermann F, Zeidler S, Pistauer S, Geißler M, Ensina L, Plaza Martin A, Meister J, Stieglitz S, Hamelmann E. Peanut-induced anaphylaxis in children and adolescents: Data from the European Anaphylaxis Registry. Allergy 2021; 76:1517-1527. [PMID: 33274436 DOI: 10.1111/all.14683] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [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: 08/05/2020] [Revised: 10/26/2020] [Accepted: 11/10/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND Peanut allergy has a rising prevalence in high-income countries, affecting 0.5%-1.4% of children. This study aimed to better understand peanut anaphylaxis in comparison to anaphylaxis to other food triggers in European children and adolescents. METHODS Data was sourced from the European Anaphylaxis Registry via an online questionnaire, after in-depth review of food-induced anaphylaxis cases in a tertiary paediatric allergy centre. RESULTS 3514 cases of food anaphylaxis were reported between July 2007 - March 2018, 56% in patients younger than 18 years. Peanut anaphylaxis was recorded in 459 children and adolescents (85% of all peanut anaphylaxis cases). Previous reactions (42% vs. 38%; p = .001), asthma comorbidity (47% vs. 35%; p < .001), relevant cofactors (29% vs. 22%; p = .004) and biphasic reactions (10% vs. 4%; p = .001) were more commonly reported in peanut anaphylaxis. Most cases were labelled as severe anaphylaxis (Ring&Messmer grade III 65% vs. 56% and grade IV 1.1% vs. 0.9%; p = .001). Self-administration of intramuscular adrenaline was low (17% vs. 15%), professional adrenaline administration was higher in non-peanut food anaphylaxis (34% vs. 26%; p = .003). Hospitalization was higher for peanut anaphylaxis (67% vs. 54%; p = .004). CONCLUSIONS The European Anaphylaxis Registry data confirmed peanut as one of the major causes of severe, potentially life-threatening allergic reactions in European children, with some characteristic features e.g., presence of asthma comorbidity and increased rate of biphasic reactions. Usage of intramuscular adrenaline as first-line treatment is low and needs to be improved. The Registry, designed as the largest database on anaphylaxis, allows continuous assessment of this condition.
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Affiliation(s)
- Ioana Maris
- Bon Secours Hospital Cork/Paediatrics and Child HealthUniversity College Cork Cork Ireland
| | - Sabine Dölle‐Bierke
- Division of Allergy and Immunology Department of Dermatology, Venereology and Allergology Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
| | | | - Lars Lange
- Department of Paediatrics St. Marien‐Hospital Bonn Germany
| | - Alice Koehli
- Division of Allergology University Children’s Hospital Zurich Zürich Switzerland
| | - Thomas Spindler
- Department of Paediatrics Medical Campus Hochgebirgsklinik Davos Davos Switzerland
| | - Jonathan Hourihane
- Paediatrics and Child Health Royal College of Surgeons in Ireland Dublin Ireland
- Children’s Health Ireland Dublin Ireland
| | | | - Katja Nemat
- Practice for paediatric pneumology and allergology Kinderzentrum Dresden‐Friedrichstadt Dresden Germany
| | - C. Kemen
- Department of Paediatrics Children’s Hospital WILHELMSTIFT Hamburg Germany
| | - Irena Neustädter
- Department of Paediatrics Hallerwiese Cnopfsche Kinderklinik Nuremberg Germany
| | - Christian Vogelberg
- Department of Paediatrics Universitätsklinikum Carl Gustav CarusTechnical University Dresden Germany
| | - Thomas Reese
- Department of Paediatrics Mathias‐Spital Rheine Rheine Germany
| | - Ismail Yildiz
- Department of Paediatrics Friedrich‐Ebert‐Krankenhaus Neumuenster Germany
| | - Zsolt Szepfalusi
- Division of Paediatric Pulmonology, Allergology and Endocrinology Department of Paediatrics and Adolescent Medicine Competence Center Paediatrics Medical University of Vienna Vienna Austria
| | - Hagen Ott
- Division of Paediatric Dermatology and Allergology Epidermolysis bullosa‐Centre HannoverChildren’s Hospital AUF DER BULT Hanover Germany
| | - Helen Straube
- Division of Allergology Darmstädter Kinderkliniken Prinzessin Margaret Darmstadt Germany
| | - Nikolaos G. Papadopoulos
- Allergy Department 2nd Paediatric Clinic National and Kapodistrian University of Athens Athens Greece
- Division of Infection Immunity& Respiratory Medicine University of Manchester Manchester UK
| | - Susanne Hämmerling
- Division of Paediatric Pulmonology and Allergology University Children`s Hospital Heidelberg Heidelberg Germany
| | - Ute Staden
- Paediatric Pneumology & Allergology Medical practice Klettke/Staden Berlin Germany
| | - Michael Polz
- Department of Paediatrics GPR Klinikum Rüsselsheim Germany
| | - Tihomir Mustakov
- Chair of Allergy University Hospital Alexandrovska Sofia Bulgaria
| | - Ewa Cichocka‐Jarosz
- Department of Paediatrics Jagiellonian University Medical College Krakow Poland
| | - Renata Cocco
- Division of Allergy Clinical Immunology and Rheumatology Department of Paediatrics Federal University of São Paulo São Paulo Brazil
| | | | | | - Margitta Worm
- Division of Allergy and Immunology Department of Dermatology, Venereology and Allergology Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
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11
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Barrat A, Cattuto C, Kivelä M, Lehmann S, Saramäki J. Effect of manual and digital contact tracing on COVID-19 outbreaks: a study on empirical contact data. J R Soc Interface 2021. [PMID: 33947224 DOI: 10.1101/2020.07.24.20159947] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2023] Open
Abstract
Non-pharmaceutical interventions are crucial to mitigate the COVID-19 pandemic and contain re-emergence phenomena. Targeted measures such as case isolation and contact tracing can alleviate the societal cost of lock-downs by containing the spread where and when it occurs. To assess the relative and combined impact of manual contact tracing (MCT) and digital (app-based) contact tracing, we feed a compartmental model for COVID-19 with high-resolution datasets describing contacts between individuals in several contexts. We show that the benefit (epidemic size reduction) is generically linear in the fraction of contacts recalled during MCT and quadratic in the app adoption, with no threshold effect. The cost (number of quarantines) versus benefit curve has a characteristic parabolic shape, independent of the type of tracing, with a potentially high benefit and low cost if app adoption and MCT efficiency are high enough. Benefits are higher and the cost lower if the epidemic reproductive number is lower, showing the importance of combining tracing with additional mitigation measures. The observed phenomenology is qualitatively robust across datasets and parameters. We moreover obtain analytically similar results on simplified models.
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Affiliation(s)
- A Barrat
- Aix Marseille Univ., CNRS, CPT, Turing Center for Living Systems, Université de Toulon, Marseille, France
- Tokyo Tech World Research Hub Initiative (WRHI), Tokyo Institute of Technology, Tokyo, Japan
| | - C Cattuto
- Computer Science Department, University of Turin, Turin, Italy
- ISI Foundation, Turin, Italy
| | - M Kivelä
- Department of Computer Science, Aalto University, Aalto, Finland
| | - S Lehmann
- Technical University of Denmark, Copenhagen, Denmark
| | - J Saramäki
- Department of Computer Science, Aalto University, Aalto, Finland
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12
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Barrat A, Cattuto C, Kivelä M, Lehmann S, Saramäki J. Effect of manual and digital contact tracing on COVID-19 outbreaks: a study on empirical contact data. J R Soc Interface 2021; 18:20201000. [PMID: 33947224 PMCID: PMC8097511 DOI: 10.1098/rsif.2020.1000] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/13/2021] [Indexed: 12/25/2022] Open
Abstract
Non-pharmaceutical interventions are crucial to mitigate the COVID-19 pandemic and contain re-emergence phenomena. Targeted measures such as case isolation and contact tracing can alleviate the societal cost of lock-downs by containing the spread where and when it occurs. To assess the relative and combined impact of manual contact tracing (MCT) and digital (app-based) contact tracing, we feed a compartmental model for COVID-19 with high-resolution datasets describing contacts between individuals in several contexts. We show that the benefit (epidemic size reduction) is generically linear in the fraction of contacts recalled during MCT and quadratic in the app adoption, with no threshold effect. The cost (number of quarantines) versus benefit curve has a characteristic parabolic shape, independent of the type of tracing, with a potentially high benefit and low cost if app adoption and MCT efficiency are high enough. Benefits are higher and the cost lower if the epidemic reproductive number is lower, showing the importance of combining tracing with additional mitigation measures. The observed phenomenology is qualitatively robust across datasets and parameters. We moreover obtain analytically similar results on simplified models.
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Affiliation(s)
- A. Barrat
- Aix Marseille Univ., CNRS, CPT, Turing Center for Living Systems, Université de Toulon, Marseille, France
- Tokyo Tech World Research Hub Initiative (WRHI), Tokyo Institute of Technology, Tokyo, Japan
| | - C. Cattuto
- Computer Science Department, University of Turin, Turin, Italy
- ISI Foundation, Turin, Italy
| | - M. Kivelä
- Department of Computer Science, Aalto University, Aalto, Finland
| | - S. Lehmann
- Technical University of Denmark, Copenhagen, Denmark
| | - J. Saramäki
- Department of Computer Science, Aalto University, Aalto, Finland
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13
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Barrat A, Cattuto C, Kivelä M, Lehmann S, Saramäki J. Effect of manual and digital contact tracing on COVID-19 outbreaks: a study on empirical contact data. J R Soc Interface 2021. [PMID: 33947224 DOI: 10.1101/2020.07.24.20159947v1] [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] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023] Open
Abstract
Non-pharmaceutical interventions are crucial to mitigate the COVID-19 pandemic and contain re-emergence phenomena. Targeted measures such as case isolation and contact tracing can alleviate the societal cost of lock-downs by containing the spread where and when it occurs. To assess the relative and combined impact of manual contact tracing (MCT) and digital (app-based) contact tracing, we feed a compartmental model for COVID-19 with high-resolution datasets describing contacts between individuals in several contexts. We show that the benefit (epidemic size reduction) is generically linear in the fraction of contacts recalled during MCT and quadratic in the app adoption, with no threshold effect. The cost (number of quarantines) versus benefit curve has a characteristic parabolic shape, independent of the type of tracing, with a potentially high benefit and low cost if app adoption and MCT efficiency are high enough. Benefits are higher and the cost lower if the epidemic reproductive number is lower, showing the importance of combining tracing with additional mitigation measures. The observed phenomenology is qualitatively robust across datasets and parameters. We moreover obtain analytically similar results on simplified models.
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Affiliation(s)
- A Barrat
- Aix Marseille Univ., CNRS, CPT, Turing Center for Living Systems, Université de Toulon, Marseille, France
- Tokyo Tech World Research Hub Initiative (WRHI), Tokyo Institute of Technology, Tokyo, Japan
| | - C Cattuto
- Computer Science Department, University of Turin, Turin, Italy
- ISI Foundation, Turin, Italy
| | - M Kivelä
- Department of Computer Science, Aalto University, Aalto, Finland
| | - S Lehmann
- Technical University of Denmark, Copenhagen, Denmark
| | - J Saramäki
- Department of Computer Science, Aalto University, Aalto, Finland
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14
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Cencetti G, Santin G, Longa A, Pigani E, Barrat A, Cattuto C, Lehmann S, Salathé M, Lepri B. Digital proximity tracing on empirical contact networks for pandemic control. Nat Commun 2021; 12:1655. [PMID: 33712583 PMCID: PMC7955065 DOI: 10.1038/s41467-021-21809-w] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 02/10/2021] [Indexed: 01/05/2023] Open
Abstract
Digital contact tracing is a relevant tool to control infectious disease outbreaks, including the COVID-19 epidemic. Early work evaluating digital contact tracing omitted important features and heterogeneities of real-world contact patterns influencing contagion dynamics. We fill this gap with a modeling framework informed by empirical high-resolution contact data to analyze the impact of digital contact tracing in the COVID-19 pandemic. We investigate how well contact tracing apps, coupled with the quarantine of identified contacts, can mitigate the spread in real environments. We find that restrictive policies are more effective in containing the epidemic but come at the cost of unnecessary large-scale quarantines. Policy evaluation through their efficiency and cost results in optimized solutions which only consider contacts longer than 15-20 minutes and closer than 2-3 meters to be at risk. Our results show that isolation and tracing can help control re-emerging outbreaks when some conditions are met: (i) a reduction of the reproductive number through masks and physical distance; (ii) a low-delay isolation of infected individuals; (iii) a high compliance. Finally, we observe the inefficacy of a less privacy-preserving tracing involving second order contacts. Our results may inform digital contact tracing efforts currently being implemented across several countries worldwide.
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Affiliation(s)
| | - G Santin
- Fondazione Bruno Kessler, Trento, Italy
| | - A Longa
- Fondazione Bruno Kessler, Trento, Italy
- University of Trento, Trento, Italy
| | - E Pigani
- Fondazione Bruno Kessler, Trento, Italy
- University of Padua, Padua, Italy
| | - A Barrat
- Aix Marseille Univ, Université de Toulon, CNRS, CPT, Turing Center for Living Systems, Marseille, France
- Tokyo Tech World Research Hub Initiative (WRHI), Tokyo Institute of Technology, Tokyo, Japan
| | - C Cattuto
- University of Turin, Turin, Italy
- ISI Foundation, Turin, Italy
| | - S Lehmann
- Technical University of Denmark, Copenhagen, Denmark
| | - M Salathé
- École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - B Lepri
- Fondazione Bruno Kessler, Trento, Italy.
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15
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Gluschke JG, Seidl J, Lyttleton RW, Nguyen K, Lagier M, Meyer F, Krogstrup P, Nygård J, Lehmann S, Mostert AB, Meredith P, Micolich AP. Integrated bioelectronic proton-gated logic elements utilizing nanoscale patterned Nafion. Mater Horiz 2021; 8:224-233. [PMID: 34821301 DOI: 10.1039/d0mh01070g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A central endeavour in bioelectronics is the development of logic elements to transduce and process ionic to electronic signals. Motivated by this challenge, we report fully monolithic, nanoscale logic elements featuring n- and p-type nanowires as electronic channels that are proton-gated by electron-beam patterned Nafion. We demonstrate inverter circuits with state-of-the-art ion-to-electron transduction performance giving DC gain exceeding 5 and frequency response up to 2 kHz. A key innovation facilitating the logic integration is a new electron-beam process for patterning Nafion with linewidths down to 125 nm. This process delivers feature sizes compatible with low voltage, fast switching elements. This expands the scope for Nafion as a versatile patternable high-proton-conductivity element for bioelectronics and other applications requiring nanoengineered protonic membranes and electrodes.
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Affiliation(s)
- J G Gluschke
- School of Physics, University of New South Wales, Sydney, NSW 2052, Australia.
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16
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Lehmann S, Herrmann F, Kleemann K, Spiegler V, Liebau E, Hensel A. Extract and the quassinoid ailanthone from Ailanthus altissima inhibit nematode reproduction by damaging germ cells and rachis in the model organism Caenorhabditis elegans. Fitoterapia 2020; 146:104651. [DOI: 10.1016/j.fitote.2020.104651] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 05/27/2020] [Accepted: 05/27/2020] [Indexed: 12/16/2022]
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17
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Delaby C, Alcolea D, Carmona-Iragui M, Illán-Gala I, Morenas-Rodríguez E, Barroeta I, Altuna M, Estellés T, Santos-Santos M, Turon-Sans J, Muñoz L, Ribosa-Nogué R, Sala-Matavera I, Sánchez-Saudinos B, Subirana A, Videla L, Benejam B, Sirisi S, Lehmann S, Belbin O, Clarimon J, Blesa R, Pagonabarraga J, Rojas-Garcia R, Fortea J, Lleó A. Differential levels of Neurofilament Light protein in cerebrospinal fluid in patients with a wide range of neurodegenerative disorders. Sci Rep 2020; 10:9161. [PMID: 32514050 PMCID: PMC7280194 DOI: 10.1038/s41598-020-66090-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 03/14/2020] [Indexed: 12/29/2022] Open
Abstract
Cerebrospinal fluid (CSF) biomarkers are useful in the diagnosis and the prediction of progression of several neurodegenerative diseases. Among them, CSF neurofilament light (NfL) protein has particular interest, as its levels reflect neuroaxonal degeneration, a common feature in various neurodegenerative diseases. In the present study, we analyzed NfL levels in the CSF of 535 participants of the SPIN (Sant Pau Initiative on Neurodegeneration) cohort including cognitively normal participants, patients with Alzheimer disease (AD), Down syndrome (DS), frontotemporal dementia (FTD), amyotrophic lateral sclerosis (ALS), dementia with Lewy bodies (DLB), progressive supranuclear palsy (PSP) and corticobasal syndrome (CBS). We evaluated the differences in CSF NfL accross groups and its association with other CSF biomarkers and with cognitive scales. All neurogenerative diseases showed increased levels of CSF NfL, with the highest levels in patients with ALS, FTD, CBS and PSP. Furthermore, we found an association of CSF NfL levels with cognitive impairment in patients within the AD and FTD spectrum and with AD pathology in DLB and DS patients. These results have implications for the use of NfL as a marker in neurodegenerative diseases.
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Affiliation(s)
- C Delaby
- Université de Montpellier, CHU de Montpellier, Laboratoire de Biochimie-Protéomique clinique, INSERM U1183, Montpellier, France.,Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain
| | - D Alcolea
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - M Carmona-Iragui
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain.,Barcelona Down Medical Center, Fundació Catalana Síndrome de Down, Barcelona, Spain
| | - I Illán-Gala
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - E Morenas-Rodríguez
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - I Barroeta
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - M Altuna
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - T Estellés
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - M Santos-Santos
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - J Turon-Sans
- Department of Neurology, Neuromuscular Diseases Unit, MND Clinic, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras, Ciberer, Spain
| | - L Muñoz
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - R Ribosa-Nogué
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - I Sala-Matavera
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - B Sánchez-Saudinos
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - A Subirana
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - L Videla
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain.,Barcelona Down Medical Center, Fundació Catalana Síndrome de Down, Barcelona, Spain
| | - B Benejam
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain.,Barcelona Down Medical Center, Fundació Catalana Síndrome de Down, Barcelona, Spain
| | - S Sirisi
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - S Lehmann
- Université de Montpellier, CHU de Montpellier, Laboratoire de Biochimie-Protéomique clinique, INSERM U1183, Montpellier, France
| | - O Belbin
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - J Clarimon
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - R Blesa
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain
| | - J Pagonabarraga
- Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain.,Department of Neurology, Movement Disorders Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain
| | - R Rojas-Garcia
- Department of Neurology, Neuromuscular Diseases Unit, MND Clinic, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Raras, Ciberer, Spain
| | - J Fortea
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain.,Barcelona Down Medical Center, Fundació Catalana Síndrome de Down, Barcelona, Spain
| | - A Lleó
- Department of Neurology, Sant Pau Memory Unit, Hospital de la Santa Creu i Sant Pau - IIB Sant Pau, Barcelona, Spain. .,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas, Ciberned, Spain.
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18
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Anande G, Deshpande NP, Mareschal S, Batcha AMN, Hampton HR, Herold T, Lehmann S, Wilkins MR, Wong JWH, Unnikrishnan A, Pimanda JE. RNA Splicing Alterations Induce a Cellular Stress Response Associated with Poor Prognosis in Acute Myeloid Leukemia. Clin Cancer Res 2020; 26:3597-3607. [PMID: 32122925 DOI: 10.1158/1078-0432.ccr-20-0184] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/13/2020] [Accepted: 02/26/2020] [Indexed: 11/16/2022]
Abstract
PURPOSE RNA splicing is a fundamental biological process that generates protein diversity from a finite set of genes. Recurrent somatic mutations of splicing factor genes are common in some hematologic cancers but are relatively uncommon in acute myeloid leukemia (AML, < 20% of patients). We examined whether RNA splicing differences exist in AML, even in the absence of splicing factor mutations. EXPERIMENTAL DESIGN We developed a bioinformatics pipeline to study alternative RNA splicing in RNA-sequencing data from large cohorts of patients with AML. RESULTS We have identified recurrent differential alternative splicing between patients with poor and good prognosis. These splicing events occurred even in patients without any discernible splicing factor mutations. Alternative splicing recurrently occurred in genes with specific molecular functions, primarily related to protein translation. Developing tools to predict the functional impact of alternative splicing on the translated protein, we discovered that approximately 45% of the splicing events directly affected highly conserved protein domains. Several splicing factors were themselves misspliced and the splicing of their target transcripts were altered. Studying differential gene expression in the same patients, we identified that alternative splicing of protein translation genes in ELNAdv patients resulted in the induction of an integrated stress response and upregulation of inflammation-related genes. Finally, using machine learning techniques, we identified a splicing signature of four genes which refine the accuracy of existing risk prognosis schemes and validated it in a completely independent cohort. CONCLUSIONS Our discoveries therefore identify aberrant alternative splicing as a molecular feature of adverse AML with clinical relevance.See related commentary by Bowman, p. 3503.
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Affiliation(s)
- Govardhan Anande
- Adult Cancer Program, Lowy Cancer Research Centre & Prince of Wales Clinical School, University of New South Wales Sydney, New South Wales, Australia
| | - Nandan P Deshpande
- School of Biotechnology and Biomolecular Sciences, University of New South Wales Sydney, New South Wales, Australia
| | - Sylvain Mareschal
- Hematology Centre, Karolinska University Hospital and Department of Medicine, Karolinska Institutet, Huddinge, Stockholm, Sweden
| | - Aarif M N Batcha
- Institute of Medical Data Processing, Biometrics and Epidemiology, Faculty of Medicine, LMU Munich, Munich, Germany.,Data Integration for Future Medicine, LMU Munich, Munich, Germany
| | - Henry R Hampton
- Adult Cancer Program, Lowy Cancer Research Centre & Prince of Wales Clinical School, University of New South Wales Sydney, New South Wales, Australia
| | - Tobias Herold
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich, Germany
| | - Soren Lehmann
- Hematology Centre, Karolinska University Hospital and Department of Medicine, Karolinska Institutet, Huddinge, Stockholm, Sweden.,Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Marc R Wilkins
- School of Biotechnology and Biomolecular Sciences, University of New South Wales Sydney, New South Wales, Australia
| | - Jason W H Wong
- Adult Cancer Program, Lowy Cancer Research Centre & Prince of Wales Clinical School, University of New South Wales Sydney, New South Wales, Australia.,School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Ashwin Unnikrishnan
- Adult Cancer Program, Lowy Cancer Research Centre & Prince of Wales Clinical School, University of New South Wales Sydney, New South Wales, Australia.
| | - John E Pimanda
- Adult Cancer Program, Lowy Cancer Research Centre & Prince of Wales Clinical School, University of New South Wales Sydney, New South Wales, Australia. .,Department of Pathology, School of Medical Sciences, University of New South Wales Sydney, New South Wales, Australia.,Department of Haematology, Prince of Wales Hospital, Sydney, New South Wales, Australia
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19
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Vogeler E, Dieterlen MT, Garbade J, Lehmann S, Julia F, Jawad K, Alaeldin A, Borger M, Meyer A. Telemedicine-Managed Anticoagulation Is Not Superior to Self-Management in LVAD Patients. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705392] [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: 10/24/2022]
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20
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Potts H, Chen IJ, Tsintzis A, Nilsson M, Lehmann S, Dick KA, Leijnse M, Thelander C. Electrical control of spins and giant g-factors in ring-like coupled quantum dots. Nat Commun 2019; 10:5740. [PMID: 31844044 PMCID: PMC6915759 DOI: 10.1038/s41467-019-13583-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 06/13/2019] [Accepted: 11/11/2019] [Indexed: 11/09/2022] Open
Abstract
Emerging theoretical concepts for quantum technologies have driven a continuous search for structures where a quantum state, such as spin, can be manipulated efficiently. Central to many concepts is the ability to control a system by electric and magnetic fields, relying on strong spin-orbit interaction and a large g-factor. Here, we present a mechanism for spin and orbital manipulation using small electric and magnetic fields. By hybridizing specific quantum dot states at two points inside InAs nanowires, nearly perfect quantum rings form. Large and highly anisotropic effective g-factors are observed, explained by a strong orbital contribution. Importantly, we find that the orbital contributions can be efficiently quenched by simply detuning the individual quantum dot levels with an electric field. In this way, we demonstrate not only control of the effective g-factor from 80 to almost 0 for the same charge state, but also electrostatic change of the ground state spin.
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Affiliation(s)
- H Potts
- Division of Solid State Physics and NanoLund, Lund University, SE-221 00, Lund, Sweden.
| | - I-J Chen
- Division of Solid State Physics and NanoLund, Lund University, SE-221 00, Lund, Sweden
| | - A Tsintzis
- Division of Solid State Physics and NanoLund, Lund University, SE-221 00, Lund, Sweden
| | - M Nilsson
- Division of Solid State Physics and NanoLund, Lund University, SE-221 00, Lund, Sweden
| | - S Lehmann
- Division of Solid State Physics and NanoLund, Lund University, SE-221 00, Lund, Sweden
| | - K A Dick
- Division of Solid State Physics and NanoLund, Lund University, SE-221 00, Lund, Sweden
- Centre for Analysis and Synthesis, Lund University, SE-221 00, Lund, Sweden
| | - M Leijnse
- Division of Solid State Physics and NanoLund, Lund University, SE-221 00, Lund, Sweden
| | - C Thelander
- Division of Solid State Physics and NanoLund, Lund University, SE-221 00, Lund, Sweden.
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Lundetræ R, Saxvig I, Lehmann S, Bjorvatn B. Effect of treatment with continuous positive airway pressure on anxiety and depression in patients with obstructive sleep apnea. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.654] [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: 11/28/2022]
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Thouvenot E, Demattei C, Lehmann S, Maceski‐Maleska A, Hirtz C, Juntas‐Morales R, Pageot N, Esselin F, Alphandéry S, Vincent T, Camu W. Serum neurofilament light chain at time of diagnosis is an independent prognostic factor of survival in amyotrophic lateral sclerosis. Eur J Neurol 2019; 27:251-257. [DOI: 10.1111/ene.14063] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 08/05/2019] [Indexed: 12/12/2022]
Affiliation(s)
- E. Thouvenot
- Service de Neurologie CHU Nîmes CNRS INSERM Univ Montpellier Nîmes France
| | - C. Demattei
- Département d'Information Médicale CHU Nîmes Univ Montpellier Nîmes France
| | - S. Lehmann
- Laboratoire de Biochimie et Plateforme de Protéomique Clinique CHU Montpellier INSERM Univ Montpellier Montpellier France
| | - A. Maceski‐Maleska
- Laboratoire de Biochimie et Plateforme de Protéomique Clinique CHU Montpellier INSERM Univ Montpellier Montpellier France
| | - C. Hirtz
- Laboratoire de Biochimie et Plateforme de Protéomique Clinique CHU Montpellier INSERM Univ Montpellier Montpellier France
| | - R. Juntas‐Morales
- Centre de référence SLA CHU Montpellier INSERM Univ Montpellier Montpellier France
| | - N. Pageot
- Centre de référence SLA CHU Montpellier INSERM Univ Montpellier Montpellier France
| | - F. Esselin
- Centre de référence SLA CHU Montpellier INSERM Univ Montpellier Montpellier France
| | - S. Alphandéry
- Centre de référence SLA CHU Montpellier INSERM Univ Montpellier Montpellier France
| | - T. Vincent
- Laboratoire d'Immunologie CHU Montpellier INSERM Univ Montpellier Montpellier France
| | - W. Camu
- Centre de référence SLA CHU Montpellier INSERM Univ Montpellier Montpellier France
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Menon P, Zakhary W, Noack T, Lehmann S, Borger M, Ender J, Forner AF. Outcomes following veno-arterial extracorporeal membrane oxygenation for post-cardiotomy cardiogenic shock in adult cardiac surgical patients with a normal preoperative left ventricular ejection fraction. J Cardiothorac Vasc Anesth 2019. [DOI: 10.1053/j.jvca.2019.07.050] [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: 11/11/2022]
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Hawro T, Lehmann S, Deuring E, Weller K, Altrichter S, Church M, Maurer M, Metz M. Comparison of pruritus and sensory qualities induced by capsaicin, histamine and cowhage. J Eur Acad Dermatol Venereol 2019; 33:1755-1761. [DOI: 10.1111/jdv.15743] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/29/2019] [Indexed: 11/29/2022]
Affiliation(s)
- T. Hawro
- Department of Dermatology and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
| | - S. Lehmann
- Department of Dermatology and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
| | - E. Deuring
- Department of Dermatology and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
| | - K. Weller
- Department of Dermatology and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
| | - S. Altrichter
- Department of Dermatology and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
| | - M.K. Church
- Department of Dermatology and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
| | - M. Maurer
- Department of Dermatology and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
| | - M. Metz
- Department of Dermatology and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
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Quaglia M, Cano S, Delatour V, Divieto C, Fillmer A, Goeschel L, Lehmann S, Melin J, Pang S, Verona G. Innovative measurements for improved diagnosis and management of neurodegenerative diseases. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.1267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Rucheton B, Quadrio I, Schraen S, Amar E, Oudart J, Chevalier S, Bigot-Corbel E, Bousiges O, Maceski AM, Malaplate C, Dufour D, Coart E, Lehmann S, Lamari F, Perret-Liaudet A. Equivalence between Innotest® and Lumipulse®G assays for CSF biomarker-based risk profiling in Alzheimer's disease: A multicenter study. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.1292] [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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Lehmann S, Paquet C, Malaplate-Armand C, Magnin E, Schraen S, Quillard-Muraine M, Bousiges O, Delaby C, Dumurgier J, Hugon J, Sablonnière B, Blanc F, Wallon D, Gabelle A, Laplanche JL, Bouaziz-Amar E, Peoc'h K. Diagnosis associated with Tau higher than 1200 pg/mL: Insights from the clinical and laboratory practice. Clin Chim Acta 2019; 495:451-456. [PMID: 31051163 DOI: 10.1016/j.cca.2019.04.081] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 11/30/2018] [Revised: 04/25/2019] [Accepted: 04/29/2019] [Indexed: 01/25/2023]
Abstract
CONTEXT Cerebrospinal fluid (CSF) biomarkers are valuable tools for the diagnosis of neurological diseases. We aimed to investigate within a retrospective multicentric study the final diagnosis associated with very high CSF Tau levels and to identify patterns of biomarkers that would differentiate them in clinical practice, to help clinical biologists into physicians' counseling. PATIENTS AND METHODS Within the national multicentric network ePLM, we included 1743 patients from January 1, 2008, to December 31, 2013, with CSF biomarkers assayed by the same Innotest assays (protein Tau, phospho-Tau [pTau], and Aβ 1-42). We identified 205 patients with protein Tau concentration higher than 1200 pg/mL and final diagnosis. RESULTS Among those patients, 105 (51.2%) were suffering from Alzheimer's disease, 37 (18%) from sporadic Creuztfeldt-Jakob disease, and 63 (30.7%) from other neurological diseases including paraneoplastic/ central nervous system tumor, frontotemporal dementia, other diagnoses, amyloid angiopathy, Lewy body dementia, and infections of the central nervous system. Phospho-Tau, Aβ1-42 and Aβ1-42/pTau values differed significantly between the three groups of patients (p < .001). An Aβ1-42/pTau ratio between 4.7 and 9.7 was suggestive of other neurological diseases (threshold in AD: 8.3). CSF 14-3-3 was useful to discriminate Alzheimer's disease from Creuztfeldt-Jakob disease in case of Aβ1-42 concentrations <550 pg/mL or pTau>60 pg/mL. CONCLUSION This work emphasizes the interest of a well-thought-out interpretation of CSF biomarkers in neurological diseases, particularly in the case of high Tau protein concentrations in the CSF.
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Affiliation(s)
- S Lehmann
- CHU de Montpellier and Université de Montpellier, IRMB, CRB, Laboratoire de Biochimie et Protéomique Clinique, 80 Avenue Augustin Fliche, 34295 Montpellier, France
| | - C Paquet
- Centre de Neurologie Cognitive, Groupe Hospitalier Saint-Louis Lariboisière Fernand-Widal APHP, INSERM U942, Université Paris Diderot, France
| | - C Malaplate-Armand
- Laboratoire de Biochimie et Biologie Moléculaire, UF Oncologie - Endocrinologie - Neurobiologie, Hôpital Central, Centre Hospitalier Universitaire, Nancy, France
| | - E Magnin
- Centre Mémoire Ressources Recherche Besançon Franche-Comté, Departement of Neurology, CHU Besançon, Besançon, France
| | - S Schraen
- Univ.Lille, Inserm, CHU-Lille, UMR-S1172 and Neurobiology Unit, Centre de Biologie-Pathologie, Lille, France
| | | | - O Bousiges
- Laboratoire de Biochimie et de Biologie Moléculaire, Hôpital de Hautepierre, Hôpitaux Universitaire de Strasbourg, Strasbourg, France; Laboratoire de Neurosciences cognitives et Adaptatives (LNCA), UMR7364 Unistra/CNRS, Strasbourg, France
| | - C Delaby
- CHU de Montpellier and Université de Montpellier, IRMB, CRB, Laboratoire de Biochimie et Protéomique Clinique, 80 Avenue Augustin Fliche, 34295 Montpellier, France
| | - J Dumurgier
- Centre de Neurologie Cognitive, Groupe Hospitalier Saint-Louis Lariboisière Fernand-Widal APHP, INSERM U942, Université Paris Diderot, France
| | - J Hugon
- Centre de Neurologie Cognitive, Groupe Hospitalier Saint-Louis Lariboisière Fernand-Widal APHP, INSERM U942, Université Paris Diderot, France
| | - B Sablonnière
- Centre Mémoire Ressources Recherche Besançon Franche-Comté, Departement of Neurology, CHU Besançon, Besançon, France
| | - F Blanc
- 2ICube laboratory and FMTS (Fédération de Médecine Translationnelle de Strasbourg), team IMIS-Neurocrypto, University of Strasbourg and CNRS, Strasbourg, France
| | - D Wallon
- Inserm U1079, University of Rouen, Department of Neurology, France
| | - A Gabelle
- Centre Mémoire Ressources Recherche, CHU de Montpellier, Hôpital Gui de Chauliac, Montpellier, Université Montpellier, Montpellier, France
| | - J L Laplanche
- Service de Biochimie et Biologie moléculaire, GH Saint-Louis-Lariboisière-Fernand Widal, APHP, Paris, France
| | - E Bouaziz-Amar
- Service de Biochimie et Biologie moléculaire, GH Saint-Louis-Lariboisière-Fernand Widal, APHP, Paris, France
| | - K Peoc'h
- Service de Biochimie et Biologie moléculaire, GH Saint-Louis-Lariboisière-Fernand Widal, APHP, Paris, France; APHP, HUPNVS, Hôpital Beaujon, Biochimie clinique, Clichy, France; Université Paris Diderot, France.
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Auboyer L, Monzo C, Wallon D, Rovelet-Lecrux A, Gabelle A, Gazagne I, Cacheux V, Lehmann S, Crozet C. Generation of induced pluripotent stem cells (iPSCs) IRMBi002-A from an Alzheimer's disease patient carrying a D694N mutation in the APP gene. Stem Cell Res 2019; 37:101438. [PMID: 31004935 DOI: 10.1016/j.scr.2019.101438] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 04/05/2019] [Accepted: 04/12/2019] [Indexed: 11/24/2022] Open
Abstract
Induced pluripotent stem cells (iPSC) were generated from skin fibroblasts obtained from a 58 year-old woman suffering from Alzheimer's disease and carrying a D694N mutation on Amyloid precursor protein (APP). Fibroblasts were reprogrammed into iPSC using the integration-free Sendai Virus which allows the expression of the Yamanaka factors. Verification of their pluripotency was achieved by demonstrating the expression of pluripotency markers and their differentiation potential into the three primary germ layers. The cells have the corresponding mutation and present a normal karyotype. The reported APP-D694N iPSC line may be used to model and study human AD pathology in vitro.
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Affiliation(s)
- L Auboyer
- Institute for Regenerative Medicine and Biotherapy (IRMB), Montpellier, France
| | - C Monzo
- Institute for Regenerative Medicine and Biotherapy (IRMB), Montpellier, France
| | - D Wallon
- Normandie Univ, UNIROUEN, Inserm U1245, Rouen University Hospital, Department of Neurology and CNR-MAJ, Normandy Center for Genomic and Personalized Medicine, F 76000 Rouen, France
| | - A Rovelet-Lecrux
- Normandie Univ, UNIROUEN, Inserm U1245, Rouen University Hospital, Department of Genetics and CNR-MAJ, Normandy Center for Genomic and Personalized Medicine, F 76000 Rouen, France
| | - A Gabelle
- Institute for Regenerative Medicine and Biotherapy (IRMB), Montpellier, France; Hopital St Eloi, CHU Montpellier, 80 rue augustin Fliche, 30295 Montpellier, France; Université de Montpellier, UM, 163 Rue Auguste Broussonnet, 34090 Montpellier, France
| | - I Gazagne
- Hopital St Eloi, CHU Montpellier, 80 rue augustin Fliche, 30295 Montpellier, France
| | - V Cacheux
- Hopital St Eloi, CHU Montpellier, 80 rue augustin Fliche, 30295 Montpellier, France
| | - S Lehmann
- Institute for Regenerative Medicine and Biotherapy (IRMB), Montpellier, France; Hopital St Eloi, CHU Montpellier, 80 rue augustin Fliche, 30295 Montpellier, France; Université de Montpellier, UM, 163 Rue Auguste Broussonnet, 34090 Montpellier, France
| | - C Crozet
- Institute for Regenerative Medicine and Biotherapy (IRMB), Montpellier, France; Hopital St Eloi, CHU Montpellier, 80 rue augustin Fliche, 30295 Montpellier, France.
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Lehmann S, Womelsdorf T, Corneil B. cTBS increases the frequency of narrow-band gamma bursts in the contralateral pre-frontal cortex in a primate model of rTMS. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Lipps DB, Leonardis JM, Lehmann S, Dess RT, McGinnis G, Strauss JB, Hayman JA, Pierce LJ, Jagsi R. Abstract P1-12-18: Mechanical properties of the shoulder and pectoralis major in women undergoing breast conserving therapy with axillary dissection and regional nodal radiotherapy versus sentinel node biopsy and radiotherapy to the breast alone. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-12-18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Breast conserving surgery (BCS) and radiotherapy (RT) reduce the risk of breast cancer recurrence, but can cause various functional deficits in breast cancer survivors. Side effects to the shoulder can include pain, stiffness, and restricted mobility, which are difficult to objectively assess in the clinic.
Methods: The mechanical integrity of the shoulder and the pectoralis major (PM) was assessed in patients at least 1 year post-treatment with BCS and RT. Nine patients with node-negative breast cancer were treated with 2 RT fields to the breast alone after BCS and sentinel node biopsy (Group 1). Nine patients with node-positive breast cancer were treated with ≥3 RT fields to the breast and draining lymphatics after BCS and axillary lymph node dissection (ALND) (Group 2). Nodal RT was delivered to the supraclavicular and infraclavicular (level III axillary) nodes in 9/9 patients, the internal mammary nodes in 6/9 patients, and the full axilla (levels I, II, and III) in 1/9 patient. Nine age-matched healthy controls (mean age 54) with no history of breast cancer or shoulder injury were also examined. The mechanical integrity of the shoulder was objectively quantified using robot-assisted biomechanical measures of shoulder stiffness. The shear elastic modulus, or 'stiffness', of the clavicular and sternocostal fiber regions of PM was assessed using ultrasound shear wave elastography. Participants were examined while they were relaxed or actively contracting force with their shoulder muscles. Linear mixed effect models with Bonferroni-corrected multiple comparisons were used to determine if shoulder stiffness or PM shear elastic modulus differed between the two breast cancer groups and controls.
Results: Patients in Groups 1 (mean age 54) and 2 (mean age 57) were an average (SD) 754(111) and 988(163) days since initiating RT (p=0.003). Shoulder stiffness did not differ between the 2 groups and healthy controls (F2,27=0.76, p=0.48), There was a significant group difference in PM shear elastic modulus (F2,27=8.33, p=0.0015), with Group 2 patients exhibiting an average greater stiffness of 14-21% in the sternocostal and 12-28% in the clavicular regions of the PM versus Group 1 patients (p<0.001) and healthy controls (p =0.021). There was no difference between patients treated with Group 1 and controls (p=0.29).
Conclusions: Although power is limited due to small sample size, this study provides the first evidence that the mechanical integrity of the shoulder remains intact in patients who receive ALND combined with a supraclavicular field (generally without full axillary radiotherapy). The observation of altered PM function without subsequent changes to shoulder stiffness in patients treated with ALND and ≥3 RT fields suggests these patients likely develop new neuromuscular strategies to stabilize the shoulder joint to compensate for the PM. Future work is needed to appreciate whether certain muscle strategies are associated with poorer quality of life in breast cancer survivors, and to prospectively monitor the impact of breast cancer treatments on PM mechanical properties.
Citation Format: Lipps DB, Leonardis JM, Lehmann S, Dess RT, McGinnis G, Strauss JB, Hayman JA, Pierce LJ, Jagsi R. Mechanical properties of the shoulder and pectoralis major in women undergoing breast conserving therapy with axillary dissection and regional nodal radiotherapy versus sentinel node biopsy and radiotherapy to the breast alone [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-12-18.
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Affiliation(s)
- DB Lipps
- University of Michigan, Ann Arbor, MI; Northwestern University, Chicago, IL; Oregon Health & Science University, Portland, OR
| | - JM Leonardis
- University of Michigan, Ann Arbor, MI; Northwestern University, Chicago, IL; Oregon Health & Science University, Portland, OR
| | - S Lehmann
- University of Michigan, Ann Arbor, MI; Northwestern University, Chicago, IL; Oregon Health & Science University, Portland, OR
| | - RT Dess
- University of Michigan, Ann Arbor, MI; Northwestern University, Chicago, IL; Oregon Health & Science University, Portland, OR
| | - G McGinnis
- University of Michigan, Ann Arbor, MI; Northwestern University, Chicago, IL; Oregon Health & Science University, Portland, OR
| | - JB Strauss
- University of Michigan, Ann Arbor, MI; Northwestern University, Chicago, IL; Oregon Health & Science University, Portland, OR
| | - JA Hayman
- University of Michigan, Ann Arbor, MI; Northwestern University, Chicago, IL; Oregon Health & Science University, Portland, OR
| | - LJ Pierce
- University of Michigan, Ann Arbor, MI; Northwestern University, Chicago, IL; Oregon Health & Science University, Portland, OR
| | - R Jagsi
- University of Michigan, Ann Arbor, MI; Northwestern University, Chicago, IL; Oregon Health & Science University, Portland, OR
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Gluschke JG, Seidl J, Burke AM, Lyttleton RW, Carrad DJ, Ullah AR, Fahlvik S, Lehmann S, Linke H, Micolich AP. Achieving short high-quality gate-all-around structures for horizontal nanowire field-effect transistors. Nanotechnology 2019; 30:064001. [PMID: 30523834 DOI: 10.1088/1361-6528/aaf1e5] [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] [Indexed: 06/09/2023]
Abstract
We introduce a fabrication method for gate-all-around nanowire field-effect transistors. Single nanowires were aligned perpendicular to underlying bottom gates using a resist-trench alignment technique. Top gates were then defined aligned to the bottom gates to form gate-all-around structures. This approach overcomes significant limitations in minimal obtainable gate length and gate-length control in previous horizontal wrap-gated nanowire transistors that arise because the gate is defined by wet-etching. In the method presented here gate-length control is limited by the resolution of the electron-beam-lithography process. We demonstrate the versatility of our approach by fabricating a device with an independent bottom gate, top gate, and gate-all-around structure as well as a device with three independent gate-all-around structures with 300, 200, and 150 nm gate length. Our method enables us to achieve subthreshold swings as low as 38 mV dec-1 at 77 K for a 150 nm gate length.
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Affiliation(s)
- J G Gluschke
- School of Physics, University of New South Wales, Sydney NSW 2052, Australia
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Lehmann S, Jawad K, Hoyer A, Dieterlen T, Funkat K, Meyer A, Garbade J, Davierwala P, Borger M. Is Extracorporeal Membrane Oxygenation an Option in Patients with Refractory Postcardiotomy Cardiogenic Shock? Long-Term Follow-up Over 1,500 Consecutive Adult Patients. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678800] [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: 10/27/2022]
Affiliation(s)
- S. Lehmann
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - K. Jawad
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - A. Hoyer
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - T. Dieterlen
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - K. Funkat
- Leipzig Heart Institute, Leipzig, Germany
| | - A. Meyer
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - J. Garbade
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - P. Davierwala
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - M.A. Borger
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
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Lehmann S, Dieterlen MT, Garbade J, Meyer A, Funkat K, Hoyer A, Jawad K, Leontyev S, Davierwala P, Borger M. Impact of ABO Blood Group on Survival after Isolated Xenograft Aortic Valve Replacement. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678811] [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: 10/27/2022]
Affiliation(s)
- S. Lehmann
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - M.-T. Dieterlen
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - J. Garbade
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - A. Meyer
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - K. Funkat
- Leipzig Heart Institute, Leipzig, Germany
| | - A. Hoyer
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - K. Jawad
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - S. Leontyev
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - P. Davierwala
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
| | - M.A. Borger
- Universitätsklinik für Herzchirurgie, Herzzentrum Leipzig, Leipzig, Germany
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Iwersen-Bergmann S, Lehmann S, Heinemann A, Schröder C, Müller A, Jungen H, Andresen-Streichert H, Pueschel K, Vidal C, Mercer-Chalmers-Bender K. Correction to: Mass poisoning with NPS: 2C-E and Bromo-DragonFly. Int J Legal Med 2019; 133:131. [DOI: 10.1007/s00414-018-1903-8] [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: 11/24/2022]
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Schroeter T, Vondran M, Von Aspern K, Lehmann S, Kiefer P, Borger M. Comparison of Cardiac Rhythm Device Surgery with Interrupted and Continued Oral Anticoagulation in Patients with Implanted Ventricular Assist Device. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678775] [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: 10/27/2022]
Affiliation(s)
- T. Schroeter
- Heart Center Leipzig, Cardiac Surgery, Leipzig, Germany
| | - M. Vondran
- Heart Center Rotenburg, Rotenburg a. d. Fulda, Germany
| | - K. Von Aspern
- Heart Center Leipzig, Cardiac Surgery, Leipzig, Germany
| | - S. Lehmann
- Heart Center Leipzig, Cardiac Surgery, Leipzig, Germany
| | - P. Kiefer
- Heart Center Leipzig, Cardiac Surgery, Leipzig, Germany
| | - M.A. Borger
- Heart Center Leipzig, Cardiac Surgery, Leipzig, Germany
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Emrich F, Noack T, Walther S, Kirsten H, Kiefer P, Seeburger J, Lehmann S, Leontyev S, Borger M. Surgery of the Proximal Thoracic Aorta: A Propensity-Matched Comparison between Minimally Invasive and Full Sternotomy. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678970] [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: 10/27/2022]
Affiliation(s)
- F. Emrich
- Heartcenter Leipzig, Leipzig, Germany
| | - T. Noack
- Heartcenter Leipzig, Leipzig, Germany
| | | | - H. Kirsten
- University of Leipzig, Institute for Medical Informatics, Statistics, and Epidemiology (IMISE), Leipzig, Germany
| | - P. Kiefer
- Heartcenter Leipzig, Leipzig, Germany
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Benz T, Lehmann S, Brioschi R, Elfering A, Aeschlimann A, Angst F. Comparison of short- and mid-term outcomes of Italian- and German-speaking patients after an interdisciplinary pain management programme in Switzerland: A prospective cohort study. J Rehabil Med 2019; 51:127-135. [DOI: 10.2340/16501977-2514] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Beck S, Darsow U, Chocano P, Schmid R, Lehmann S, Klaghofer R, Spies L, Bischoff-Ferrari HA. 75PREDICTION ACCURACY OF CLINICAL ASSESSMENT FOR CONVERSION TO ALZHEIMER’S DISEASE DEMENTIA IN SUBJECTS WITH SUBJECTIVE AND MILD COGNITIVE IMPAIRMENT: A LONGITUDINAL STUDY. Age Ageing 2018. [DOI: 10.1093/ageing/afy118.07] [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)
- S Beck
- Centre on Aging and Mobility, University Hospital Zurich and City Hospital Waid, Zurich Switzerland
- University Clinic for Acute Geriatric Care, Waid City Hospital, Zurich, Switzerland
| | - U Darsow
- Centre on Aging and Mobility, University Hospital Zurich and City Hospital Waid, Zurich Switzerland
- University Clinic for Acute Geriatric Care, Waid City Hospital, Zurich, Switzerland
| | - P Chocano
- Centre on Aging and Mobility, University Hospital Zurich and City Hospital Waid, Zurich Switzerland
- Department of Geriatrics and Aging Research, University Hospital Zurich and University of Zurich
| | - R Schmid
- University Clinic for Acute Geriatric Care, Waid City Hospital, Zurich, Switzerland
| | - S Lehmann
- University Clinic for Acute Geriatric Care, Waid City Hospital, Zurich, Switzerland
| | - R Klaghofer
- University Clinic for Acute Geriatric Care, Waid City Hospital, Zurich, Switzerland
- Department of Psychiatry and Psychotherapy, University Hospital Zurich, Switzerland
| | - L Spies
- Jung Diagnostics GmbH, Hamburg, Germany
| | - H A Bischoff-Ferrari
- Centre on Aging and Mobility, University Hospital Zurich and City Hospital Waid, Zurich Switzerland
- University Clinic for Acute Geriatric Care, Waid City Hospital, Zurich, Switzerland
- Department of Psychiatry and Psychotherapy, University Hospital Zurich, Switzerland
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Relaño-Ginés A, Lehmann S, Brillaud E, Belondrade M, Casanova D, Hamela C, Vincent C, Poupeau S, Sarniguet J, Alvarez T, Arnaud JD, Maurel JC, Crozet C. Lithium as a disease-modifying agent for prion diseases. Transl Psychiatry 2018; 8:163. [PMID: 30135493 PMCID: PMC6105724 DOI: 10.1038/s41398-018-0209-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 06/12/2018] [Accepted: 06/20/2018] [Indexed: 12/12/2022] Open
Abstract
Prion diseases still remain incurable despite multiple efforts to develop a treatment. Therefore, it is important to find strategies to at least reduce the symptoms. Lithium has been considered as a neuroprotective agent for years, and the objective of this preclinical study was to evaluate the efficacy of lithium delivered as a water-in-oil microemulsion (Aonys®). This delivery system allows using low doses of lithium and to avoid the toxicity observed in chronic treatments. C57BL/6J mice were intracranially inoculated with ME7 prion-infected brain homogenates and then were treated with lithium from day 90 post inoculation until their death. Lithium was administered at traditional doses (16 mg/kg/day) by the gavage route and at lower doses (40 or 160 µg/kg/day; Aonys®) by the rectal mucosa route. Low doses of lithium (Aonys®) improved the survival of prion-inoculated mice, and also decreased vacuolization, astrogliosis, and neuronal loss compared with controls (vehicle alone). The extent of the protective effects in mice treated with low-dose lithium was comparable or even higher than what was observed in mice that received lithium at the traditional dose. These results indicate that lithium administered using this innovative delivery system could represent a potential therapeutic approach not only for prion diseases but also for other neurodegenerative diseases.
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Affiliation(s)
- A. Relaño-Ginés
- 0000 0001 2097 0141grid.121334.6Institut de Médecine Régénératrice et de Biothérapie (I.M.R.B.), Physiopathologie, diagnostic et thérapie cellulaire des affections neurodégénératives—Institut National de la Santé et de la Recherche Médicale Université de Montpellier U1183 Centre Hospitalo, Universitaire de Montpellier, Montpellier, France ,grid.433120.7Institut de Génétique Humaine, Centre National de la Recherche Scientifique-UPR1142, Montpellier, France
| | - S. Lehmann
- 0000 0001 2097 0141grid.121334.6Institut de Médecine Régénératrice et de Biothérapie (I.M.R.B.), Physiopathologie, diagnostic et thérapie cellulaire des affections neurodégénératives—Institut National de la Santé et de la Recherche Médicale Université de Montpellier U1183 Centre Hospitalo, Universitaire de Montpellier, Montpellier, France ,grid.433120.7Institut de Génétique Humaine, Centre National de la Recherche Scientifique-UPR1142, Montpellier, France
| | - E. Brillaud
- Medesis Pharma SA, Avenue du Golf, Baillargues, France
| | - M. Belondrade
- grid.433120.7Institut de Génétique Humaine, Centre National de la Recherche Scientifique-UPR1142, Montpellier, France
| | - D. Casanova
- grid.433120.7Institut de Génétique Humaine, Centre National de la Recherche Scientifique-UPR1142, Montpellier, France
| | - C. Hamela
- grid.433120.7Institut de Génétique Humaine, Centre National de la Recherche Scientifique-UPR1142, Montpellier, France
| | - C. Vincent
- Medesis Pharma SA, Avenue du Golf, Baillargues, France
| | - S. Poupeau
- Medesis Pharma SA, Avenue du Golf, Baillargues, France
| | - J. Sarniguet
- Medesis Pharma SA, Avenue du Golf, Baillargues, France
| | - T. Alvarez
- 0000 0001 2097 0141grid.121334.6Etablissement Confiné d’Expérimentation BioCampus, Université Montpellier, Campus Triolet, Bâtiment 53, CECEMA, Montpellier, France
| | - J. D. Arnaud
- 0000 0001 2097 0141grid.121334.6Etablissement Confiné d’Expérimentation BioCampus, Université Montpellier, Campus Triolet, Bâtiment 53, CECEMA, Montpellier, France
| | - J. C. Maurel
- Medesis Pharma SA, Avenue du Golf, Baillargues, France
| | - C. Crozet
- 0000 0001 2097 0141grid.121334.6Institut de Médecine Régénératrice et de Biothérapie (I.M.R.B.), Physiopathologie, diagnostic et thérapie cellulaire des affections neurodégénératives—Institut National de la Santé et de la Recherche Médicale Université de Montpellier U1183 Centre Hospitalo, Universitaire de Montpellier, Montpellier, France ,grid.433120.7Institut de Génétique Humaine, Centre National de la Recherche Scientifique-UPR1142, Montpellier, France
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Gluschke JG, Seidl J, Lyttleton RW, Carrad DJ, Cochrane JW, Lehmann S, Samuelson L, Micolich AP. Using Ultrathin Parylene Films as an Organic Gate Insulator in Nanowire Field-Effect Transistors. Nano Lett 2018; 18:4431-4439. [PMID: 29923725 DOI: 10.1021/acs.nanolett.8b01519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report the development of nanowire field-effect transistors featuring an ultrathin parylene film as a polymer gate insulator. The room temperature, gas-phase deposition of parylene is an attractive alternative to oxide insulators prepared at high temperatures using atomic layer deposition. We discuss our custom-built parylene deposition system, which is designed for reliable and controlled deposition of <100 nm thick parylene films on III-V nanowires standing vertically on a growth substrate or horizontally on a device substrate. The former case gives conformally coated nanowires, which we used to produce functional Ω-gate and gate-all-around structures. These give subthreshold swings as low as 140 mV/dec and on/off ratios exceeding 103 at room temperature. For the gate-all-around structure, we developed a novel fabrication strategy that overcomes some of the limitations with previous lateral wrap-gate nanowire transistors. Finally, we show that parylene can be deposited over chemically treated nanowire surfaces, a feature generally not possible with oxides produced by atomic layer deposition due to the surface "self-cleaning" effect. Our results highlight the potential for parylene as an alternative ultrathin insulator in nanoscale electronic devices more broadly, with potential applications extending into nanobioelectronics due to parylene's well-established biocompatible properties.
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Affiliation(s)
- J G Gluschke
- School of Physics , University of New South Wales , Sydney NSW 2052 , Australia
| | - J Seidl
- School of Physics , University of New South Wales , Sydney NSW 2052 , Australia
| | - R W Lyttleton
- School of Physics , University of New South Wales , Sydney NSW 2052 , Australia
| | - D J Carrad
- School of Physics , University of New South Wales , Sydney NSW 2052 , Australia
- Center for Quantum Devices, Niels Bohr Institute , University of Copenhagen , Copenhagen DK-2100 , Denmark
| | - J W Cochrane
- School of Physics , University of New South Wales , Sydney NSW 2052 , Australia
| | - S Lehmann
- Solid State Physics/NanoLund , Lund University , SE-221 00 Lund , Sweden
| | - L Samuelson
- Solid State Physics/NanoLund , Lund University , SE-221 00 Lund , Sweden
| | - A P Micolich
- School of Physics , University of New South Wales , Sydney NSW 2052 , Australia
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Lehmann S, Esch E, Hartmann P, Goswami A, Nikolin S, Weis J, Beyer C, Johann S. Expression profile of pattern recognition receptors in skeletal muscle of SOD1 (G93A) amyotrophic lateral sclerosis (ALS) mice and sporadic ALS patients. Neuropathol Appl Neurobiol 2018; 44:606-627. [PMID: 29575052 DOI: 10.1111/nan.12483] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 02/20/2018] [Indexed: 12/14/2022]
Abstract
AIMS Amyotrophic lateral sclerosis (ALS) is characterized by degeneration of motoneurons and progressive muscle wasting. Inflammatory processes, mediated by non-neuronal cells, such as glial cells, are known to contribute to disease progression. Inflammasomes consist of pattern recognition receptors (PRRs), apoptosis-associated speck-like protein (ASC) and caspase 1 and are essential for interleukin (IL) processing and a rapid immune response after tissue damage. Recently, we described inflammasome activation in the spinal cord of ALS patients and in SOD1(G93A) ALS mice. Since pathological changes in the skeletal muscle are early events in ALS, we hypothesized that PRRs might be abnormally expressed in muscle fibre degeneration. METHODS Western blot analysis, real-time PCR and immunohistochemistry were performed with muscle tissue from presymptomatic and early-symptomatic male SOD1(G93A) mice and with muscle biopsies of control and sporadic ALS (sALS) patients. Analysed PRRs include nucleotide-binding oligomerization domain-like (NOD-like) receptor protein 1 (NLRP1), NLR protein 3 (NLRP3), NLR family CARD domain-containing 4 (NLRC4) and absent in melanoma 2. Additionally, expression levels of ASC, caspase 1, interleukin 1 beta (IL1β) and interleukin 18 (IL18) were evaluated. RESULTS Expression of PRRs and ASC was detected in murine and human tissue. The PRR NLRC4, caspase 1 and IL1β were significantly elevated in denervated muscle of SOD1(G93A) mice and sALS patients. Furthermore, levels of caspase 1 and IL1β were already increased in presymptomatic animals. CONCLUSION Our findings suggest that increased inflammasome activation may be involved in skeletal muscle pathology in ALS. Furthermore, elevated levels of NLRC4, caspase 1 and IL1β reflect early changes in the skeletal muscle and may contribute to the denervation process.
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Affiliation(s)
- S Lehmann
- Institute of Neuroanatomy, Medical Clinic RWTH Aachen University, Aachen, Germany.,Institute Molecular and Cellular Anatomy (MOCA), Medical Clinic RWTH Aachen University, Aachen, Germany
| | - E Esch
- Institute of Neuroanatomy, Medical Clinic RWTH Aachen University, Aachen, Germany
| | - P Hartmann
- Institute of Neuroanatomy, Medical Clinic RWTH Aachen University, Aachen, Germany
| | - A Goswami
- Institute of Neuropathology, Medical Clinic RWTH Aachen University, Aachen, Germany
| | - S Nikolin
- Institute of Neuropathology, Medical Clinic RWTH Aachen University, Aachen, Germany
| | - J Weis
- Institute of Neuropathology, Medical Clinic RWTH Aachen University, Aachen, Germany
| | - C Beyer
- Institute of Neuroanatomy, Medical Clinic RWTH Aachen University, Aachen, Germany.,JARA - Translational Brain Medicine, Aachen, Germany
| | - S Johann
- Institute of Neuroanatomy, Medical Clinic RWTH Aachen University, Aachen, Germany.,Institute of Anatomy II, Medical Faculty Heinrich-Heine-University, Düsseldorf, Germany
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Mer AS, Lindberg J, Nilsson C, Klevebring D, Wang M, Grönberg H, Lehmann S, Rantalainen M. Expression levels of long non-coding RNAs are prognostic for AML outcome. J Hematol Oncol 2018; 11:52. [PMID: 29625580 PMCID: PMC5889529 DOI: 10.1186/s13045-018-0596-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 03/21/2018] [Indexed: 01/08/2023] Open
Abstract
Background Long non-coding RNA (lncRNA) expression has been implicated in a range of molecular mechanisms that are central in cancer. However, lncRNA expression has not yet been comprehensively characterized in acute myeloid leukemia (AML). Here, we assess to what extent lncRNA expression is prognostic of AML patient overall survival (OS) and determine if there are indications of lncRNA-based molecular subtypes of AML. Methods We performed RNA sequencing of 274 intensively treated AML patients in a Swedish cohort and quantified lncRNA expression. Univariate and multivariate time-to-event analysis was applied to determine association between individual lncRNAs with OS. Unsupervised statistical learning was applied to ascertain if lncRNA-based molecular subtypes exist and are prognostic. Results Thirty-three individual lncRNAs were found to be associated with OS (adjusted p value < 0.05). We established four distinct molecular subtypes based on lncRNA expression using a consensus clustering approach. LncRNA-based subtypes were found to stratify patients into groups with prognostic information (p value < 0.05). Subsequently, lncRNA expression-based subtypes were validated in an independent patient cohort (TCGA-AML). LncRNA subtypes could not be directly explained by any of the recurrent cytogenetic or mutational aberrations, although associations with some of the established genetic and clinical factors were found, including mutations in NPM1, TP53, and FLT3. Conclusion LncRNA expression-based four subtypes, discovered in this study, are reproducible and can effectively stratify AML patients. LncRNA expression profiling can provide valuable information for improved risk stratification of AML patients. Electronic supplementary material The online version of this article (10.1186/s13045-018-0596-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Arvind Singh Mer
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels Vag 12A, SE-17177, Stockholm, Sweden
| | - Johan Lindberg
- Department of Medical Epidemiology and Biostatistics, Science for Life Laboratory, Karolinska Institutet, Nobels Vag 12A, SE-17177, Stockholm, Sweden
| | - Christer Nilsson
- Hematology Centre, Karolinska University Hospital and Karolinska Institute, Huddinge, Stockholm, Sweden
| | - Daniel Klevebring
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels Vag 12A, SE-17177, Stockholm, Sweden
| | - Mei Wang
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels Vag 12A, SE-17177, Stockholm, Sweden
| | - Henrik Grönberg
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels Vag 12A, SE-17177, Stockholm, Sweden
| | - Soren Lehmann
- Hematology Centre, Karolinska University Hospital and Karolinska Institute, Huddinge, Stockholm, Sweden.,Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Mattias Rantalainen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels Vag 12A, SE-17177, Stockholm, Sweden.
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Dix M, Adams V, Klaeske K, Bowen S, Werner S, Garbade J, Emrich F, Lehmann S, Jawad K, Borger M, Dieterlen M. Ischemic HeartFailure Induces Simultaneous Downregulation of Myocardial E3 Ligases. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.454] [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: 11/30/2022] Open
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Oberbach A, Friedrich M, Feder S, Buschmann T, Gräber S, Rodloff A, Schlichting N, Kullnick Y, Lehmann S, Luehr M, Peterß S, Pichlmaier M, Borger M, Hagl C, Bagaev E. Bacterial Infiltration of Structural Heart Valve Disease. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1627915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- A. Oberbach
- Department of Cardiac Surgery, Ludwig Maximilian University Munich, Munich, Germany
| | - M. Friedrich
- Department for Diagnostics, Fraunhofer IZI, Leipzig, Germany
| | - S. Feder
- Department of Cardiac Surgery, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - T. Buschmann
- Department for Diagnostics, Fraunhofer IZI, Leipzig, Germany
| | - S. Gräber
- Institut for Microbiology, University of Leipzig, Leipzig, Germany
| | - A. Rodloff
- Institut for Microbiology, University of Leipzig, Leipzig, Germany
| | - N. Schlichting
- Department for Diagnostics, Fraunhofer IZI, Leipzig, Germany
| | - Y. Kullnick
- Department for Diagnostics, Fraunhofer IZI, Leipzig, Germany
| | - S. Lehmann
- Department for Diagnostics, Fraunhofer IZI, Leipzig, Germany
| | - M. Luehr
- Department of Cardiac Surgery, Ludwig Maximilian University Munich, Munich, Germany
| | - S. Peterß
- Department of Cardiac Surgery, Ludwig Maximilian University Munich, Munich, Germany
| | - M. Pichlmaier
- Department of Cardiac Surgery, Ludwig Maximilian University Munich, Munich, Germany
| | - M. Borger
- Department of Cardiac Surgery, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - C. Hagl
- Department of Cardiac Surgery, Ludwig Maximilian University Munich, Munich, Germany
| | - E. Bagaev
- Department of Cardiac Surgery, Ludwig Maximilian University Munich, Munich, Germany
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Dix M, Adams V, Klaeske K, Bowen S, Werner S, Garbade J, Emrich F, Lehmann S, Jawad K, Borger M, Dieterlen MT. Induction of Simultaneous Downregulation of Myocardial E3 Ligases in Ischemic Heart Failure. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1627913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- M. Dix
- Clinic for Cardiac Surgery, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - V. Adams
- Clinic for Cardiology, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - K. Klaeske
- Clinic for Cardiac Surgery, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - S. Bowen
- Clinic for Cardiology, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - S. Werner
- Clinic for Cardiology, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - J. Garbade
- Clinic for Cardiac Surgery, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - F. Emrich
- Clinic for Cardiac Surgery, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - S. Lehmann
- Clinic for Cardiac Surgery, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - K. Jawad
- Clinic for Cardiac Surgery, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - M. Borger
- Clinic for Cardiac Surgery, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
| | - M.-T. Dieterlen
- Clinic for Cardiac Surgery, Heart Centre Leipzig - University Leipzig, Leipzig, Germany
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Eifert S, Oberbach A, Kur F, Dohmen P, Garbade J, Hagl C, Mehilli J, Gruhle M, Witt R, Lehmann S, Bagaev E. Gender Differences in Surgical Patients Suffering from Active Infective Endocarditis (AIE). Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1627917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- S. Eifert
- Department of Cardiac Surgery, Ludwig-Maximilians-University, Munich, Germany
| | - A. Oberbach
- Department of Cardiac Surgery, Ludwig-Maximilians-University, Munich, Germany
| | - F. Kur
- Department of Cardiac Surgery, Ludwig-Maximilians-University, Munich, Germany
| | - P. Dohmen
- Department of Cardiac Surgery, Leipzig Heart Centre - University of Leipzig, Leipzig, Germany
| | - J. Garbade
- Department of Cardiac Surgery, Leipzig Heart Centre - University of Leipzig, Leipzig, Germany
| | - C. Hagl
- Department of Cardiac Surgery, Ludwig-Maximilians-University, Munich, Germany
| | - J. Mehilli
- Department of Cardiology, Ludwig-Maximilians-University, Munich, Germany
| | - M. Gruhle
- Department of Cardiac Surgery, Ludwig-Maximilians-University, Munich, Germany
| | - R. Witt
- Department of Cardiac Surgery, Ludwig-Maximilians-University, Munich, Germany
| | - S. Lehmann
- Frauenhofer Institut, IZI, Leipzig, Germany
| | - E. Bagaev
- Department of Cardiac Surgery, Ludwig-Maximilians-University, Munich, Germany
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Gjerde K, Lehmann S, Naterstad IF, Berge ME, Johansson A. Reliability of an adherence monitoring sensor embedded in an oral appliance used for treatment of obstructive sleep apnoea. J Oral Rehabil 2017; 45:110-115. [DOI: 10.1111/joor.12584] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2017] [Indexed: 01/23/2023]
Affiliation(s)
- K. Gjerde
- Department of Thoracic Medicine; Center for Sleep Medicine; Haukeland University Hospital; Bergen Norway
- Department of Clinical Dentistry - Prosthodontics; Faculty of Medicine and Dentistry; University of Bergen; Bergen Norway
| | - S. Lehmann
- Department of Thoracic Medicine; Center for Sleep Medicine; Haukeland University Hospital; Bergen Norway
- Department of Clinical Science; Section for Thoracic Medicine; Faculty of Medicine and Dentistry; University of Bergen; Bergen Norway
| | - I. F. Naterstad
- Department of Global and Public Health; University of Bergen; Bergen Norway
| | - M. E. Berge
- Department of Thoracic Medicine; Center for Sleep Medicine; Haukeland University Hospital; Bergen Norway
- Department of Clinical Dentistry - Prosthodontics; Faculty of Medicine and Dentistry; University of Bergen; Bergen Norway
| | - A. Johansson
- Department of Thoracic Medicine; Center for Sleep Medicine; Haukeland University Hospital; Bergen Norway
- Department of Clinical Dentistry - Prosthodontics; Faculty of Medicine and Dentistry; University of Bergen; Bergen Norway
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Mergenthaler K, Anttu N, Vainorius N, Aghaeipour M, Lehmann S, Borgström MT, Samuelson L, Pistol ME. Anti-Stokes photoluminescence probing k-conservation and thermalization of minority carriers in degenerately doped semiconductors. Nat Commun 2017; 8:1634. [PMID: 29158511 PMCID: PMC5696368 DOI: 10.1038/s41467-017-01817-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 10/18/2017] [Indexed: 11/13/2022] Open
Abstract
It has recently been found that anti-Stokes photoluminescence can be observed in degenerately n-doped indium phosphide nanowires, when exciting directly into the electron gas. This anti-Stokes mechanism has not been observed before and allows the study of carrier relaxation and recombination using standard photoluminescence techniques. It is important to know if this anti-Stokes photoluminescence also occurs in bulk semiconductors as well as its relation to carrier recombination and relaxation. Here we show that similar anti-Stokes photoluminescence can indeed be observed in degenerately doped bulk indium phosphide and gallium arsenide and is caused by minority carriers scattering to high momenta by phonons. We find in addition that the radiative electron-hole recombination is highly momentum-conserving and that photogenerated minority carriers recombine before relaxing to the band edge at low temperatures. These observations challenge the use of models assuming thermalization of minority carriers in the analysis of highly doped devices. Anti-Stokes luminescence - the emission of photons with higher energy than those absorbed – in nanomaterials is widely used for optoelectronic applications. Here the authors observe it in degenerately doped bulk InP and GaAs, indicating it as a more general property of direct bandgap semiconductors.
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Affiliation(s)
- K Mergenthaler
- Department of Solid State Physics and NanoLund, Lund University, Box 118, 221 00, Lund, Sweden.
| | - N Anttu
- Department of Solid State Physics and NanoLund, Lund University, Box 118, 221 00, Lund, Sweden
| | - N Vainorius
- Department of Solid State Physics and NanoLund, Lund University, Box 118, 221 00, Lund, Sweden
| | - M Aghaeipour
- Department of Solid State Physics and NanoLund, Lund University, Box 118, 221 00, Lund, Sweden
| | - S Lehmann
- Department of Solid State Physics and NanoLund, Lund University, Box 118, 221 00, Lund, Sweden
| | - M T Borgström
- Department of Solid State Physics and NanoLund, Lund University, Box 118, 221 00, Lund, Sweden
| | - L Samuelson
- Department of Solid State Physics and NanoLund, Lund University, Box 118, 221 00, Lund, Sweden
| | - M-E Pistol
- Department of Solid State Physics and NanoLund, Lund University, Box 118, 221 00, Lund, Sweden.
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49
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Alazemi A, Balakirski G, AlShehhi F, Lehmann S, Tenbrock K, Megahed M. Juvenile pityriasis rubra pilaris: successful treatment with methotrexate. Clin Exp Dermatol 2017; 43:110-112. [PMID: 29072324 DOI: 10.1111/ced.13281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2017] [Indexed: 11/29/2022]
Affiliation(s)
- A Alazemi
- Departments of Dermatology and Allergology, University Hospital of RWTH Aachen, Aachen, Germany.,Department of Dermatology and Venereology, Al Adan Hospital, Kuwait
| | - G Balakirski
- Departments of Dermatology and Allergology, University Hospital of RWTH Aachen, Aachen, Germany
| | - F AlShehhi
- Departments of Dermatology and Allergology, University Hospital of RWTH Aachen, Aachen, Germany.,Department of Dermatology, Al Ain Hospital, Abu Dhabi, United Arab Emirates
| | - S Lehmann
- Departments of Pediatrics and Adolescent Medicine, University Hospital of RWTH Aachen, Aachen, Germany
| | - K Tenbrock
- Departments of Pediatrics and Adolescent Medicine, University Hospital of RWTH Aachen, Aachen, Germany
| | - M Megahed
- Departments of Dermatology and Allergology, University Hospital of RWTH Aachen, Aachen, Germany
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50
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Heckendorn F, Lèbre A, Destailleur V, Bouy M, Spiegler V, Lehmann S, Hensel A. Anthelmintic effect and intake dynamics of oak (quercus spp.) and walnut (juglans regia) foliage in goats. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - A Lèbre
- Antenne FiBL France, Divajeu, France
| | | | - M Bouy
- Cabinet Vétérinaire ANTIKOR, Barbières, France
| | | | - S Lehmann
- University of Münster, Münster, Germany
| | - A Hensel
- University of Münster, Münster, Germany
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