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Weiler S, Rahmati V, Isstas M, Wutke J, Stark AW, Franke C, Graf J, Geis C, Witte OW, Hübener M, Bolz J, Margrie TW, Holthoff K, Teichert M. A primary sensory cortical interareal feedforward inhibitory circuit for tacto-visual integration. Nat Commun 2024; 15:3081. [PMID: 38594279 PMCID: PMC11003985 DOI: 10.1038/s41467-024-47459-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 04/03/2024] [Indexed: 04/11/2024] Open
Abstract
Tactile sensation and vision are often both utilized for the exploration of objects that are within reach though it is not known whether or how these two distinct sensory systems combine such information. Here in mice, we used a combination of stereo photogrammetry for 3D reconstruction of the whisker array, brain-wide anatomical tracing and functional connectivity analysis to explore the possibility of tacto-visual convergence in sensory space and within the circuitry of the primary visual cortex (VISp). Strikingly, we find that stimulation of the contralateral whisker array suppresses visually evoked activity in a tacto-visual sub-region of VISp whose visual space representation closely overlaps with the whisker search space. This suppression is mediated by local fast-spiking interneurons that receive a direct cortico-cortical input predominantly from layer 6 neurons located in the posterior primary somatosensory barrel cortex (SSp-bfd). These data demonstrate functional convergence within and between two primary sensory cortical areas for multisensory object detection and recognition.
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Affiliation(s)
- Simon Weiler
- Sainsbury Wellcome Centre for Neuronal Circuits and Behaviour, University College London, 25 Howland Street, London, W1T 4JG, UK
| | - Vahid Rahmati
- Jena University Hospital, Department of Neurology, Am Klinikum 1, 07747, Jena, Germany
| | - Marcel Isstas
- Friedrich Schiller University Jena, Institute of General Zoology and Animal Physiology, Erbertstraße 1, 07743, Jena, Germany
| | - Johann Wutke
- Jena University Hospital, Department of Neurology, Am Klinikum 1, 07747, Jena, Germany
| | - Andreas Walter Stark
- Friedrich Schiller University Jena, Institute of Applied Optics and Biophysics, Fröbelstieg 1, 07743, Jena, Germany
| | - Christian Franke
- Friedrich Schiller University Jena, Institute of Applied Optics and Biophysics, Fröbelstieg 1, 07743, Jena, Germany
- Friedrich Schiller University Jena, Jena Center for Soft Matter, Philosophenweg 7, 07743, Jena, Germany
- Friedrich Schiller University Jena, Abbe Center of Photonics, Albert-Einstein-Straße 6, 07745, Jena, Germany
| | - Jürgen Graf
- Jena University Hospital, Department of Neurology, Am Klinikum 1, 07747, Jena, Germany
| | - Christian Geis
- Jena University Hospital, Department of Neurology, Am Klinikum 1, 07747, Jena, Germany
| | - Otto W Witte
- Jena University Hospital, Department of Neurology, Am Klinikum 1, 07747, Jena, Germany
| | - Mark Hübener
- Max Planck Institute for Biological Intelligence, Am Klopferspitz 18, 82152, Martinsried, Germany
| | - Jürgen Bolz
- Friedrich Schiller University Jena, Institute of General Zoology and Animal Physiology, Erbertstraße 1, 07743, Jena, Germany
| | - Troy W Margrie
- Sainsbury Wellcome Centre for Neuronal Circuits and Behaviour, University College London, 25 Howland Street, London, W1T 4JG, UK
| | - Knut Holthoff
- Jena University Hospital, Department of Neurology, Am Klinikum 1, 07747, Jena, Germany
| | - Manuel Teichert
- Jena University Hospital, Department of Neurology, Am Klinikum 1, 07747, Jena, Germany.
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Boehnke T, Franke C, Bauerfeind A, Heinemann K, Kolberg-Liedtke C, Koelkebeck K. Systematic analysis of combined oral contraceptive prescription patterns in psychotropic drug users across twelve European countries. Contraception 2024; 132:110375. [PMID: 38253249 DOI: 10.1016/j.contraception.2024.110375] [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: 07/02/2023] [Revised: 11/24/2023] [Accepted: 01/16/2024] [Indexed: 01/24/2024]
Abstract
OBJECTIVE To investigate prescription patterns of combined oral contraceptives (COC) among psychotropic drug users compared to non-psychotropic drug users in routine clinical practice in Europe. STUDY DESIGN A pooled analysis of three large, prospective, multinational cohort studies including women with a new prescription of COC from 12 European countries. We calculated standardized mean differences (SMD) to investigate whether the status of psychotropic drug use (use/no use) or the psychotropic drug class (psycholeptics/psychoanaleptics) is associated with the healthcare professional's choice of a specific type of COC progestin. RESULTS Our analysis comprised 143,069 non-psychotropic drug users and 2174 psychotropic drug users. Progestins with the highest frequency in the cohorts were levonorgestrel (non-psychotropic drug users: 33.8%; psychotropic drug users: 32.4%), nomegestrol/nomegestrol acetate (non-psychotropic drug users: 19.1%; psychotropic drug users: 26.4%), and drospirenone (non-psychotropic drug users: 15.9%; psychotropic drug users: 14.8%). SMD analysis indicated no substantial differences in COC prescription patterns between the two cohorts. However, we observed association signals for users of the herbal antidepressant St. John's wort in that those individuals more often received a prescription for drospirenone and less frequently for nomegestrol/nomegestrol acetate compared to non-psychotropic drug users. CONCLUSIONS Psychotropic drug user status does not seem to affect healthcare professionals' decisions when prescribing COC. However, limited evidence suggests that the risk for drug interactions might differ by progestin type, and some COC might be more suitable for psychotropic drug users than others. Specific guidelines should be conveyed to healthcare professionals to assist them in contraceptive counseling. IMPLICATIONS With exception of St. John's wort, our analysis showed no differential prescription behavior of combined oral contraceptives in psychotropic drug users and non-users. However, healthcare professionals should carefully consider psychotropic drug use in contraceptive counseling as it is still unclear whether drug interactions exist when co-administered with certain oral contraceptives.
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Affiliation(s)
- Tanja Boehnke
- ZEG Berlin - Center for Epidemiology and Health Research, Berlin, Germany.
| | - Christian Franke
- ZEG Berlin - Center for Epidemiology and Health Research, Berlin, Germany
| | - Anja Bauerfeind
- ZEG Berlin - Center for Epidemiology and Health Research, Berlin, Germany
| | - Klaas Heinemann
- ZEG Berlin - Center for Epidemiology and Health Research, Berlin, Germany
| | - Cornelia Kolberg-Liedtke
- Department of Gynecology and Obstetrics, University Hospital Essen, Essen, North Rhine-Westphalia, Germany
| | - Katja Koelkebeck
- LVR-University Hospital Essen, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Duisburg-Essen, Essen, North Rhine-Westphalia, Germany; Center for Translational Neuro, and Behavioral Sciences, University of Duisburg-Essen, Essen, North Rhine-Westphalia, Germany
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Franke C, Piezonna F, Schäfer R, Grimm A, Loris LM, Schwaibold M. Effect of a digital patient motivation and support tool on CPAP/APAP adherence and daytime sleepiness: a randomized controlled trial. Sleep Biol Rhythms 2024; 22:49-63. [PMID: 38469583 PMCID: PMC10899947 DOI: 10.1007/s41105-023-00479-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 07/22/2023] [Indexed: 03/13/2024]
Abstract
The purpose of this study was to assess the effect of a digital patient support (DPS) tool, complementary to standard care on continuous or automatic positive airway pressure (auto)CPAP adherence and daytime sleepiness after 12 weeks in patients diagnosed with severe obstructive sleep apnea (OSA). All patients with apnea-hypopnea index (AHI) ≥ 30 per hour were prospectively included and randomized to receive standard care (SC) or standard care with personalized DPS via a mobile app prototype version (SC + DPS). Patients in the SC + DPS arm received additionally automated feedback on their therapy, motivational messages and therapy recommendations. 100 patients completed the study (SC: 50, SC + DPS: 50). No differences were found in characteristics of SC vs. SC + DPS (mean ± SD) for age (53.9 ± 10.8 vs. 51.7 ± 12.3 years), initial diagnostic apnea-hypopnea index (51.1 ± 15.5 vs. 50.9 ± 17.7 events/h), BMI (33.8 ± 6.7 vs. 33.5 ± 4.5 kg/m), and Epworth Sleepiness Scale (ESS) baseline score (9.5 ± 4.2 vs. 9.1 ± 5.2). After 12 weeks, mean ESS score was significantly lower (SC: 7.6 ± 4.1 vs. SC + DPS: 5.5 ± 3.9; p = 0.006) in the SC + DPS group vs. standard care group. Therapy adherence was significantly higher (SC: 268.7 ± 122.1 vs. SC + DPS: 338.8 ± 106.8 min; p = 0.002) in the SC + DPS group compared to standard care group. No difference was found in the residual AHI between both groups. However, SC + DPS group showed a trend towards fewer phases with increased leakage compared to SC group. Intention-to-treat analysis (112 (56/56) patients) showed similar results. After 12 weeks, (auto)CPAP adherence and daytime sleepiness improved significantly in patients with severe OSA using the digital patient support tool. Clinical Trial Registration (retrospectively registered): Registry: NCT05440279; Title: Effects of Telemedical Support on Therapeutic Results of CPAP Patients; URL: https://clinicaltrials.gov/ct2/show/NCT05440279; Date of registration: June 30, 2022. Supplementary Information The online version contains supplementary material available at 10.1007/s41105-023-00479-9.
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Affiliation(s)
- Christian Franke
- Medizinisches Versorgungszentrum GbR Sonneberg, 96515 Sonneberg, Germany
| | - Franziska Piezonna
- Medizinisches Versorgungszentrum GbR Sonneberg, 96515 Sonneberg, Germany
| | - Regina Schäfer
- Loewenstein Medical Technology GmbH+Co. KG, 76135 Karlsruhe, Germany
| | - Alexander Grimm
- Loewenstein Medical Technology GmbH+Co. KG, 76135 Karlsruhe, Germany
| | - Lisa-Marie Loris
- Loewenstein Medical Technology GmbH+Co. KG, 76135 Karlsruhe, Germany
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von Stockum S, Bauerfeind A, Becker K, Franke C, Fruzzetti F, Calaf J, Keck C, Heinemann K. NOMAC-E2 shows a better contraceptive effectiveness than LNG combined oral contraceptives in women under 25: real-world PRO-E2 study. Gynecol Endocrinol 2023; 39:2162036. [PMID: 36617423 DOI: 10.1080/09513590.2022.2162036] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Objective: To investigate unintended pregnancy and changes in mood, acne, and weight in NOMAC-E2 vs levonorgestrel-containing COC (COCLNG) users under 25 years.Methods: In this large, observational study, new users (first-ever users of an eligible COC or restarting with the same or a new eligible COC after a break of at least 2 months) of NOMAC-E2 and COCLNG were recruited in 12 countries in Europe, Australia, and Latin America and followed up via questionnaires for up to 2 years. Unintended pregnancy was expressed by the Pearl Index (PI; contraceptive failures/100 women-years). Crude (HRcrude) and adjusted hazard ratios (HRadj) were calculated. Mood and acne changes were defined as change of score from baseline. Weight change was defined as percent change of body weight.Results: Overall, 12,829 NOMAC-E2 users and 17,095 COCLNG users under 25 were followed-up. The risk of unintended pregnancy was statistically significantly lower in the NOMAC-E2 cohort; confirmed events: 30 NOMAC-E2 (PI 0.24; 95% CI, 0.16-0.35) vs 94 COCLNG (PI 0.51; 95% CI, 0.41-0.62). The HRcrude for unintended pregnancy comparing NOMAC-E2 to COCLNG was 0.47 (95% CI, 0.31-0.71) and the HRadj was 0.52 (95% CI, 0.34-0.78). No differential effect on acne, mood, and weight was observed between cohorts.Conclusions: NOMAC-E2 shows a significantly better contraceptive effectiveness in young women and has no differential effect on acne, mood, and weight compared to COCLNG.
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Affiliation(s)
- Sophia von Stockum
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Anja Bauerfeind
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Kerstin Becker
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Christian Franke
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Franca Fruzzetti
- Department of Obstetrics and Gynecology, Pisa University Hospital, Pisa, Italy
| | - Joaquim Calaf
- Department of Obstetrics and Gynaecology, Hospital de la Santa Creu i Sant Pau, Autonomous University of Barcelona, Barcelona, Spain
| | | | - Klaas Heinemann
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
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von Stockum S, Becker K, Bauerfeind A, Franke C, Fruzzetti F, Calaf J, Keck C, Heinemann K. NOMAC-E2 compares to LNG combined oral contraceptives in women over forty: real-world PRO-E2 study. Gynecol Endocrinol 2023; 39:2166032. [PMID: 36690019 DOI: 10.1080/09513590.2023.2166032] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVE To investigate safety and effectiveness of NOMAC-E2 and levonorgestrel-containing COCs (COCLNG) in users over 40. METHODS In this large, observational study, new users1 of NOMAC-E2 and COCLNG were recruited in Europe, Australia, and Latin America and followed-up via questionnaires. Incidence of venous thromboembolism (VTE) was expressed as incidence rate (IR; events/104 women-years [WY]). Unintended pregnancy was expressed by the Pearl Index (PI; contraceptive failures/100 WY). Mood and weight changes were defined as mean changes in mood score and percentage of body weight. RESULTS Overall, 7,762 NOMAC-E2 and 6,059 COCLNG users over 40 were followed-up. NOMAC-E2 showed no increased VTE risk compared to COCLNG; confirmed events: 5 NOMAC-E2 (IR 5.9; 95% CI, 1.9-13.7) vs 4 COCLNG (IR 5.9; 95% CI, 1.6-15.1). Unintended pregnancy did not differ substantially between cohorts; confirmed events: 4 NOMAC-E2 (PI 0.05; 95% CI, 0.01-0.13) vs 5 COCLNG (PI 0.08; 95% CI, 0.03-0.18). No differential effect on mood and weight was observed between cohorts. CONCLUSIONS NOMAC-E2 can be considered a valid alternative to COCLNG in perimenopausal women.
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Affiliation(s)
- Sophia von Stockum
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Kerstin Becker
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Anja Bauerfeind
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Christian Franke
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Franca Fruzzetti
- Department of Obstetrics and Gynecology, Pisa University Hospital, Pisa, Italy
| | - Joaquim Calaf
- Department of Obstetrics and Gynaecology, Hospital de la Santa Creu i Sant Pau, Autonomous University of Barcelona, Barcelona, Spain
| | | | - Klaas Heinemann
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
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Kirschke S, Bennett C, Bigham Ghazani A, Franke C, Kirschke D, Lee Y, Loghmani Khouzani ST, Nath S. Citizen science projects in freshwater monitoring. From individual design to clusters? J Environ Manage 2022; 309:114714. [PMID: 35189514 DOI: 10.1016/j.jenvman.2022.114714] [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] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 02/01/2022] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
Citizen science projects spring up in freshwater monitoring, with an increasing number of projects in river, lake, and groundwater monitoring around the globe. Citizen science scholars assume that these projects have different designs, including diverse characteristics of citizens, institutions, and forms of interactions, potentially affecting the outcomes of these projects. Given the strong focus on case studies or reviews in the field, there is, however, little comparative evidence of the different types of citizen science projects in freshwater monitoring. Based on a global survey, this study provides a systematic comparative analysis of the design of 85 citizen science projects in the field of freshwater monitoring. Descriptive statistics reveal how projects differ along 45 literature-based design variables raised in the survey. Factor analysis based on 31 of these variables yields ten key design factors, and cluster analysis, based on these design factors, allows to identify seven distinguished clusters of citizen science projects. While these clusters are rather heterogeneous, they reveal differences between groups of projects regarding institutional motivation, citizen characteristics, and interaction forms. These results significantly add to a systematic comparison of citizen science projects in freshwater monitoring and enable a more effective involvement of citizens in environmental management.
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Affiliation(s)
- Sabrina Kirschke
- United Nations University - Institute for Integrated Management of Material Fluxes and of Resources (UNU-FLORES), Dresden, Germany.
| | | | | | | | | | - Yeongju Lee
- United Nations University - Institute for Integrated Management of Material Fluxes and of Resources (UNU-FLORES), Dresden, Germany
| | - Seyed Taha Loghmani Khouzani
- United Nations University - Institute for Integrated Management of Material Fluxes and of Resources (UNU-FLORES), Dresden, Germany
| | - Shuvojit Nath
- United Nations University - Institute for Integrated Management of Material Fluxes and of Resources (UNU-FLORES), Dresden, Germany
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Wende T, Wilhelmy F, Kasper J, Prasse G, Franke C, Arlt F, Frydrychowicz C, Meixensberger J, Nestler U. Usefulness and Limits of Tractography for Surgery in the Precentral Gyrus—A Case Report. Clin Pract 2022; 12:231-236. [PMID: 35447855 PMCID: PMC9025938 DOI: 10.3390/clinpract12020027] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/02/2022] [Accepted: 04/05/2022] [Indexed: 11/16/2022] Open
Abstract
The resection of tumors within the primary motor cortex is a constant challenge. Although tractography may help in preoperative planning, it has limited application. While it can give valuable information on subcortical fibers, it is less accurate in the cortical layer of the brain. A 38-year-old patient presented with paresis of the right hand and focal epileptic seizures due to a tumor in the left precentral gyrus. Transcranial magnetic stimulation was not applicable due to seizures, so microsurgical resection was performed with preoperative tractography and intraoperative direct electrical stimulation. A histopathological assessment revealed a diagnosis of glioblastoma. Postoperative magnetic resonance imaging (MRI) showed complete resection. The paresis dissolved completely during follow-up. Surgery within the precentral gyrus is of high risk and requires multimodal functional planning. If interpreted with vigilance and consciousness of the underlying physical premises, tractography can provide helpful information within its limitations, which is especially subcortically. However, it may also help in the identification of functional cortex columns of the brain in the presence of a tumor.
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Affiliation(s)
- Tim Wende
- Department of Neurosurgery, University Hospital Leipzig, Liebigstr. 20, 04103 Leipzig, Germany; (F.W.); (J.K.); (C.F.); (F.A.); (J.M.); (U.N.)
- Correspondence:
| | - Florian Wilhelmy
- Department of Neurosurgery, University Hospital Leipzig, Liebigstr. 20, 04103 Leipzig, Germany; (F.W.); (J.K.); (C.F.); (F.A.); (J.M.); (U.N.)
| | - Johannes Kasper
- Department of Neurosurgery, University Hospital Leipzig, Liebigstr. 20, 04103 Leipzig, Germany; (F.W.); (J.K.); (C.F.); (F.A.); (J.M.); (U.N.)
| | - Gordian Prasse
- Institute of Neuroradiology, University Hospital Leipzig, 04103 Leipzig, Germany;
| | - Christian Franke
- Department of Neurosurgery, University Hospital Leipzig, Liebigstr. 20, 04103 Leipzig, Germany; (F.W.); (J.K.); (C.F.); (F.A.); (J.M.); (U.N.)
| | - Felix Arlt
- Department of Neurosurgery, University Hospital Leipzig, Liebigstr. 20, 04103 Leipzig, Germany; (F.W.); (J.K.); (C.F.); (F.A.); (J.M.); (U.N.)
| | - Clara Frydrychowicz
- Institute of Neuropathology, University Hospital Leipzig, 04103 Leipzig, Germany;
| | - Jürgen Meixensberger
- Department of Neurosurgery, University Hospital Leipzig, Liebigstr. 20, 04103 Leipzig, Germany; (F.W.); (J.K.); (C.F.); (F.A.); (J.M.); (U.N.)
| | - Ulf Nestler
- Department of Neurosurgery, University Hospital Leipzig, Liebigstr. 20, 04103 Leipzig, Germany; (F.W.); (J.K.); (C.F.); (F.A.); (J.M.); (U.N.)
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Pengo T, Culley S, Franke C. Editorial: Single-Molecule Image Analysis. Front Bioinform 2022; 2:897938. [PMID: 36304299 PMCID: PMC9580917 DOI: 10.3389/fbinf.2022.897938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Thomas Pengo
- Informatics Institute, University of Minnesota, Minneapolis, MN, United States
- *Correspondence: Thomas Pengo, ; Siân Culley, ; Christian Franke,
| | - Siân Culley
- Randall Centre for Cell and Molecular Biophysics, School of Basic and Medical Biosciences, Faculty of Life Sciences and Medicine, King’s College London, London, United Kingdom
- *Correspondence: Thomas Pengo, ; Siân Culley, ; Christian Franke,
| | - Christian Franke
- Institute of Applied Optics and Biophysics, Faculty of Physics and Astronomy, Friedrich Schiller University Jena, Jena, Germany
- Abbe Center of Photonics, Friedrich Schiller University Jena, Jena, Germany
- Jena Center for Soft Matter, Friedrich Schiller University Jena, Jena, Germany
- *Correspondence: Thomas Pengo, ; Siân Culley, ; Christian Franke,
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Paramasivam P, Franke C, Stöter M, Höijer A, Bartesaghi S, Sabirsh A, Lindfors L, Arteta MY, Dahlén A, Bak A, Andersson S, Kalaidzidis Y, Bickle M, Zerial M. Endosomal escape of delivered mRNA from endosomal recycling tubules visualized at the nanoscale. J Cell Biol 2022; 221:212896. [PMID: 34882187 PMCID: PMC8666849 DOI: 10.1083/jcb.202110137] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [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: 10/25/2021] [Revised: 11/04/2021] [Accepted: 11/05/2021] [Indexed: 01/09/2023] Open
Abstract
Delivery of exogenous mRNA using lipid nanoparticles (LNPs) is a promising strategy for therapeutics. However, a bottleneck remains in the poor understanding of the parameters that correlate with endosomal escape versus cytotoxicity. To address this problem, we compared the endosomal distribution of six LNP-mRNA formulations of diverse chemical composition and efficacy, similar to those used in mRNA-based vaccines, in primary human adipocytes, fibroblasts, and HeLa cells. Surprisingly, we found that total uptake is not a sufficient predictor of delivery, and different LNPs vary considerably in endosomal distributions. Prolonged uptake impaired endosomal acidification, a sign of cytotoxicity, and caused mRNA to accumulate in compartments defective in cargo transport and unproductive for delivery. In contrast, early endocytic/recycling compartments have the highest probability for mRNA escape. By using super-resolution microscopy, we could resolve a single LNP-mRNA within subendosomal compartments and capture events of mRNA escape from endosomal recycling tubules. Our results change the view of the mechanisms of endosomal escape and define quantitative parameters to guide the development of mRNA formulations toward higher efficacy and lower cytotoxicity.
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Affiliation(s)
- Prasath Paramasivam
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Christian Franke
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Martin Stöter
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Andreas Höijer
- Advanced Drug Delivery, Pharmaceutical Science Research and Development, AstraZeneca, Gothenburg, Sweden
| | - Stefano Bartesaghi
- Bioscience Metabolism, Research and Early Development Cardiovascular, Renal and Metabolism, BioPharmaceuticals Research and Development, AstraZeneca, Gothenburg, Sweden
| | - Alan Sabirsh
- Advanced Drug Delivery, Pharmaceutical Science Research and Development, AstraZeneca, Gothenburg, Sweden
| | - Lennart Lindfors
- Advanced Drug Delivery, Pharmaceutical Science Research and Development, AstraZeneca, Gothenburg, Sweden
| | - Marianna Yanez Arteta
- Advanced Drug Delivery, Pharmaceutical Science Research and Development, AstraZeneca, Gothenburg, Sweden
| | - Anders Dahlén
- Oligonucleotide Discovery, Discovery Sciences Research and Development, AstraZeneca, Gothenburg, Sweden
| | - Annette Bak
- Advanced Drug Delivery, Pharmaceutical Science Research and Development, AstraZeneca, Boston, MA
| | - Shalini Andersson
- Oligonucleotide Discovery, Discovery Sciences Research and Development, AstraZeneca, Gothenburg, Sweden
| | - Yannis Kalaidzidis
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Marc Bickle
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Marino Zerial
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
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Koczulla AR, Ankermann T, Behrends U, Berlit P, Böing S, Brinkmann F, Franke C, Glöckl R, Gogoll C, Hummel T, Kronsbein J, Maibaum T, Peters EMJ, Pfeifer M, Platz T, Pletz M, Pongratz G, Powitz F, Rabe KF, Scheibenbogen C, Stallmach A, Stegbauer M, Wagner HO, Waller C, Wirtz H, Zeiher A, Zwick R. [S1 Guideline "Post-COVID/Long-COVID"]. Chirurg 2022. [PMID: 35041036 DOI: 10.1007/s00104-021-01543-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- A R Koczulla
- LL-Sekretariat Anja Flender, Schön Klinik Berchtesgadener Land, Malterhöh 1, 83471, Schönau am Königssee, Deutschland.
| | - T Ankermann
- Gesellschaft für Pädiatrische Pneumologie (DGPP), Berlin, Deutschland
| | - U Behrends
- Chronisches Fatigue Centrum, Klinikum rechts der Isar der Technischen Universität München, München, Deutschland
| | - P Berlit
- Deutsche Gesellschaft f. Neurologie (DGN), Berlin, Deutschland
| | - S Böing
- Berufsverband der Pneumologen (BdP), Heidenheim, Deutschland
| | - F Brinkmann
- Gesellschaft für Pädiatrische Pneumologie (DGPP), Berlin, Deutschland
| | - C Franke
- Berufsverband der Pneumologen (BdP), Heidenheim, Deutschland
| | - R Glöckl
- Deutsche Gesellschaft f. Pneumologie und Beatmungsmedizin (DGP), Berlin, Deutschland
| | - C Gogoll
- Deutsche Gesellschaft f. Pneumologie und Beatmungsmedizin (DGP), Berlin, Deutschland
| | - T Hummel
- Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn, Deutschland
| | - J Kronsbein
- Deutsche gesetzliche Unfallversicherung (DGUV), Berlin, Deutschland
| | - T Maibaum
- Deutsche Gesellschaft f. Neurologie (DGN), Berlin, Deutschland
| | - E M J Peters
- Deutsche Gesellschaft f. Psychosomatische Medizin und Ärztliche Psychotherapie (DGPM), Stuttgart, Deutschland
| | - M Pfeifer
- Deutsche Gesellschaft f. Pneumologie und Beatmungsmedizin (DGP), Berlin, Deutschland
| | - T Platz
- Deutsche Gesellschaft für Neurorehabilitation (DGNR), Rheinbach, Deutschland
| | - M Pletz
- Sektion Infektiologie, Paul Ehrlich Gesellschaft für Chemotherapie e.V. (PEG), Köln, Deutschland
| | - G Pongratz
- Deutsche Schmerzgesellschaft der Deutschen Migräne und Kopfschmerzgesellschaft, Königstein im Taunus, Deutschland.,Deutsche Gesellschaft für Rheumatologie, Berlin, Deutschland
| | - F Powitz
- Berufsverband der Pneumologen (BdP), Heidenheim, Deutschland
| | - K F Rabe
- Deutsche Gesellschaft f. Pneumologie und Beatmungsmedizin (DGP), Berlin, Deutschland
| | | | - A Stallmach
- Deutsche Gesellschaft f. Gastroenterologie, Verdauungs- und Stoffwechselerkrankungen (DGVS), Berlin, Deutschland.,Deutsche Gesellschaft f. Infektiologie (DGI), Berlin, Deutschland
| | - M Stegbauer
- Deutsche gesetzliche Unfallversicherung (DGUV), Berlin, Deutschland
| | - H O Wagner
- Deutsche Gesellschaft f. Allgemeinmedizin und Familienmedizin (DEGAM), Berlin, Deutschland
| | - C Waller
- Deutsches Kollegium für Psychosomatische Medizin (DKPM), Berlin, Deutschland
| | - H Wirtz
- Deutsche Gesellschaft f. Pneumologie und Beatmungsmedizin (DGP), Berlin, Deutschland
| | - A Zeiher
- Deutsche Gesellschaft f. Kardiologie - Herz- und Kreislaufforschung (DGK), Düsseldorf, Deutschland
| | - R Zwick
- Österreichische Gesellschaft für Pneumologie (ÖGP), Wien, Österreich
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11
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Reed S, Koro C, DiBello J, Becker K, Bauerfeind A, Franke C, Heinemann K. Unintended pregnancy in users of nomegestrol acetate and 17β-oestradiol (NOMAC-E2) compared with levonorgestrel-containing combined oral contraceptives: final results from the PRO-E2 study. EUR J CONTRACEP REPR 2021; 26:447-453. [PMID: 34651535 DOI: 10.1080/13625187.2021.1988923] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To assess and compare the risk of unintended pregnancy in NOMAC-E2 users with levonorgestrel-containing COC (COCLNG) users in clinical practice. STUDY DESIGN In this observational study, new users1 of NOMAC-E2 and COCLNG were recruited in Europe, Australia, and Latin America and followed for up to 2 years. Unintended pregnancy was expressed by the Pearl Index (contraceptive failures per 100 women-years [WY]), crude hazard ratios (HRcrude) and adjusted hazard ratios (HRadj). RESULTS Overall, 44,559 and 46,754 users were recruited to the NOMAC-E2 and COCLNG user cohorts, respectively. There were 64 unintended pregnancies in NOMAC-E2 users (0.15 per 100 WY; 95% CI, 0.11-0.19) and 200 in COCLNG users (0.41 per 100 WY; 95% CI, 0.35-0.47). The unintended pregnancy risk was statistically significantly lower in the NOMAC-E2 cohort (p<.0001) compared to the COCLNG user cohort. The HRadj of NOMAC-E2 vs COCLNG was 0.45 (95% CI, 0.34-0.60; adjusted for age, body mass index, gravidity, COC user status, education level). CONCLUSIONS NOMAC-E2 demonstrated superior contraceptive effectiveness compared to COCLNG, likely due to the comparatively short hormone-free interval and possibly reinforced by the long half-life of NOMAC.
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Affiliation(s)
- Suzanne Reed
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | | | | | - Kerstin Becker
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Anja Bauerfeind
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Christian Franke
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Klaas Heinemann
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
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12
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Reed S, Koro C, DiBello J, Becker K, Bauerfeind A, Franke C, Heinemann K. Prospective controlled cohort study on the safety of a monophasic oral contraceptive containing nomegestrol acetate (2.5mg) and 17β-oestradiol (1.5mg) (PRO-E2 study): risk of venous and arterial thromboembolism. EUR J CONTRACEP REPR 2021; 26:439-446. [PMID: 34644228 DOI: 10.1080/13625187.2021.1987410] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To assess and compare the risk of venous thromboembolism (VTE) and arterial thromboembolism (ATE) in NOMAC-E2 users with levonorgestrel-containing combined oral contraceptive (COCLNG) users. STUDY DESIGN This large, prospective, observational active surveillance study used a non-inferiority design. New users of NOMAC-E2 and COCLNG were recruited in 12 countries in Australia, Europe, and Latin America. Women were followed up directly and self-reported outcomes of interest were validated via treating physicians. The main outcome of interest was VTE, specifically deep venous thrombosis of the lower extremities (DVT) and pulmonary embolism (PE). Secondary outcomes included all VTE and ATE. Data on confounders were captured and independent blinded adjudication assessed the classification of events. Incidence rates, crude (HRcrude), and adjusted (HRadj) hazard ratios were calculated. RESULTS A total of 101,498 women (49,598 NOMAC-E2 users and 51,900 COCLNG users) were enrolled and followed for up to 2 years (144,901 WY of observation). NOMAC-E2 users had a higher mean age (31.0 ± 8.63 years) than COCLNG users (29.3 ± 8.53 years) but other baseline characteristics were similar between the cohorts. The main analysis comparing the risk of DVT of the lower extremities and PE in NOMAC-E2 users versus COCLNG users yielded an HRadj of 0.59 (95% CI, 0.25-1.35) (adjusted for age, BMI, family history of VTE, and current duration of use). The risk of all VTE and ATE was not higher in NOMAC-E2 users compared with COCLNG users. CONCLUSION(S) NOMAC-E2 use was not associated with a higher risk of VTE or ATE compared with COCLNG.
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Affiliation(s)
- Suzanne Reed
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | | | | | - Kerstin Becker
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Anja Bauerfeind
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Christian Franke
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
| | - Klaas Heinemann
- Berlin Center for Epidemiology and Health Research (ZEG), Berlin, Germany
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13
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Koczulla AR, Ankermann T, Behrends U, Berlit P, Böing S, Brinkmann F, Franke C, Glöckl R, Gogoll C, Hummel T, Kronsbein J, Maibaum T, Peters EMJ, Pfeifer M, Platz T, Pletz M, Pongratz G, Powitz F, Rabe KF, Scheibenbogen C, Stallmach A, Stegbauer M, Wagner HO, Waller C, Wirtz H, Zeiher A, Zwick RH. [S1 Guideline Post-COVID/Long-COVID]. Pneumologie 2021; 75:869-900. [PMID: 34474488 DOI: 10.1055/a-1551-9734] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The German Society of Pneumology initiated the AWMFS1 guideline Post-COVID/Long-COVID. In a broad interdisciplinary approach, this S1 guideline was designed based on the current state of knowledge.The clinical recommendation describes current post-COVID/long-COVID symptoms, diagnostic approaches, and therapies.In addition to the general and consensus introduction, a subject-specific approach was taken to summarize the current state of knowledge.The guideline has an expilcit practical claim and will be continuously developed and adapted by the author team based on the current increase in knowledge.
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Affiliation(s)
| | | | - Uta Behrends
- Klinikum rechts der Isar der Technischen Universität München, Chronisches Fatigue Centrum
| | | | | | | | | | - Rainer Glöckl
- Deutsche Gesellschaft für Pneumologie und Beatmungsmedizin (DGP)
| | - Christian Gogoll
- Deutsche Gesellschaft für Pneumologie und Beatmungsmedizin (DGP)
| | - Thomas Hummel
- Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e. V
| | | | - Thomas Maibaum
- Deutsche Gesellschaft für Allgemeinmedizin und Familienmedizin (DEGAM)
| | - Eva M J Peters
- Deutsche Gesellschaft für Psychosomatische Medizin und Ärztliche Psychotherapie (DGPM)
| | - Michael Pfeifer
- Deutsche Gesellschaft für Pneumologie und Beatmungsmedizin (DGP)
| | - Thomas Platz
- Deutsche Gesellschaft für Neurorehabilitation (DGNR) und Redaktionskomitee S2k-LL SARS-CoV-2, COVID-19 und (Früh-) Rehabilitation
| | - Matthias Pletz
- Paul Ehrlich Gesellschaft für Chemotherapie e. V. (PEG)/Sektion Infektiologie
| | - Georg Pongratz
- Deutsche Schmerzgesellschaft, Deutsche Migräne- und Kopfschmerzgesellschaft und Deutsche Gesellschaft für Rheumatologie
| | | | - Klaus F Rabe
- Deutsche Gesellschaft für Pneumologie und Beatmungsmedizin (DGP)
| | | | - Andreas Stallmach
- Deutsche Gesellschaft für Gastroenterologie, Verdauungs- und Stoffwechselerkrankungen (DGVS), Deutsche Gesellschaft für Infektiologie (DGI)
| | | | - Hans Otto Wagner
- Deutsche Gesellschaft für Allgemeinmedizin und Familienmedizin (DEGAM)
| | | | - Hubert Wirtz
- Deutsche Gesellschaft für Pneumologie und Beatmungsmedizin (DGP)
| | - Andreas Zeiher
- Deutsche Gesellschaft für Kardiologie- Herz- und Kreislaufforschung (DGK)
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14
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Belicova L, Repnik U, Delpierre J, Gralinska E, Seifert S, Valenzuela JI, Morales-Navarrete HA, Franke C, Räägel H, Shcherbinina E, Prikazchikova T, Koteliansky V, Vingron M, Kalaidzidis YL, Zatsepin T, Zerial M. Anisotropic expansion of hepatocyte lumina enforced by apical bulkheads. J Cell Biol 2021; 220:212522. [PMID: 34328499 PMCID: PMC8329733 DOI: 10.1083/jcb.202103003] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/11/2021] [Accepted: 07/08/2021] [Indexed: 12/20/2022] Open
Abstract
Lumen morphogenesis results from the interplay between molecular pathways and mechanical forces. In several organs, epithelial cells share their apical surfaces to form a tubular lumen. In the liver, however, hepatocytes share the apical surface only between adjacent cells and form narrow lumina that grow anisotropically, generating a 3D network of bile canaliculi (BC). Here, by studying lumenogenesis in differentiating mouse hepatoblasts in vitro, we discovered that adjacent hepatocytes assemble a pattern of specific extensions of the apical membrane traversing the lumen and ensuring its anisotropic expansion. These previously unrecognized structures form a pattern, reminiscent of the bulkheads of boats, also present in the developing and adult liver. Silencing of Rab35 resulted in loss of apical bulkheads and lumen anisotropy, leading to cyst formation. Strikingly, we could reengineer hepatocyte polarity in embryonic liver tissue, converting BC into epithelial tubes. Our results suggest that apical bulkheads are cell-intrinsic anisotropic mechanical elements that determine the elongation of BC during liver tissue morphogenesis.
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Affiliation(s)
- Lenka Belicova
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Urska Repnik
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Julien Delpierre
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Elzbieta Gralinska
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Sarah Seifert
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | | | | | - Christian Franke
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Helin Räägel
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany.,Nelson Laboratories LLC, Salt Lake City, UT
| | | | | | | | - Martin Vingron
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | | | - Timofei Zatsepin
- Skolkovo Institute of Science and Technology, Skolkovo, Russia.,Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Marino Zerial
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
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15
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Franke C, Repnik U, Segeletz S, Brouilly N, Kalaidzidis Y, Verbavatz JM, Zerial M. Correlative single-molecule localization microscopy and electron tomography reveals endosome nanoscale domains. Traffic 2020; 20:601-617. [PMID: 31206952 PMCID: PMC6771687 DOI: 10.1111/tra.12671] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [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: 04/24/2019] [Revised: 06/04/2019] [Accepted: 06/09/2019] [Indexed: 12/12/2022]
Abstract
Many cellular organelles, including endosomes, show compartmentalization into distinct functional domains, which, however, cannot be resolved by diffraction‐limited light microscopy. Single molecule localization microscopy (SMLM) offers nanoscale resolution but data interpretation is often inconclusive when the ultrastructural context is missing. Correlative light electron microscopy (CLEM) combining SMLM with electron microscopy (EM) enables correlation of functional subdomains of organelles in relation to their underlying ultrastructure at nanometer resolution. However, the specific demands for EM sample preparation and the requirements for fluorescent single‐molecule photo‐switching are opposed. Here, we developed a novel superCLEM workflow that combines triple‐color SMLM (dSTORM & PALM) and electron tomography using semi‐thin Tokuyasu thawed cryosections. We applied the superCLEM approach to directly visualize nanoscale compartmentalization of endosomes in HeLa cells. Internalized, fluorescently labeled Transferrin and EGF were resolved into morphologically distinct domains within the same endosome. We found that the small GTPase Rab5 is organized in nanodomains on the globular part of early endosomes. The simultaneous visualization of several proteins in functionally distinct endosomal sub‐compartments demonstrates the potential of superCLEM to link the ultrastructure of organelles with their molecular organization at nanoscale resolution.
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Affiliation(s)
- Christian Franke
- Max-Planck-Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Urska Repnik
- Max-Planck-Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Sandra Segeletz
- Max-Planck-Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Nicolas Brouilly
- Max-Planck-Institute of Molecular Cell Biology and Genetics, Dresden, Germany.,Instutut de Biologie du Developpement de Marseille-Luminy, Aix-Marseille Universite, Marseille, France
| | - Yannis Kalaidzidis
- Max-Planck-Institute of Molecular Cell Biology and Genetics, Dresden, Germany.,Faculty of Bioengineering and Bioinformatics, Moscow State University, Moscow, Russia
| | - Jean-Marc Verbavatz
- Max-Planck-Institute of Molecular Cell Biology and Genetics, Dresden, Germany.,Institut Jacques Monod, CNRS, Université Paris-Diderot, Paris, France
| | - Marino Zerial
- Max-Planck-Institute of Molecular Cell Biology and Genetics, Dresden, Germany
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16
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Kleineberg NN, van der Meulen M, Franke C, Klingelhoefer L, Sauerbier A, Di Liberto G, Carvalho V, Berendse HW, Deuschl G. Differences in neurology residency training programmes across Europe - a survey among the Residents and Research Fellow Section of the European Academy of Neurology national representatives. Eur J Neurol 2020; 27:1356-1363. [PMID: 32248603 PMCID: PMC7496990 DOI: 10.1111/ene.14242] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 03/24/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE Neurology is rapidly evolving as a result of continuous diagnostic and therapeutic progress, which influences the daily work of neurologists. Therefore, updating residency training programmes is crucial for the future of neurology. Several countries are currently discussing and/or modifying the structure of their neurology residency training programme. A detailed and up-to-date overview of the available European residency training programmes will aid this process. METHODS A questionnaire addressing numerous aspects of residency training programmes in neurology was distributed among 38 national representatives of the Resident and Research Fellow Section of the European Academy of Neurology. RESULTS We obtained data from 32 European countries (response rate 84%). The median (range) duration of the residency training programmes was 60 (12-72) months. In the majority of countries, rotations to other medical disciplines were mandatory, mostly psychiatry (69%), internal medicine (66%) and neurosurgery (59%). However, the choice of medical fields and the duration of rotations varied substantially between countries. In 50% of countries, there were formal regulations regarding training in evidence-based medicine, teaching skills and/or leadership qualities. In many countries (75%), residents had to take an examination. CONCLUSIONS We found substantial variation among European countries in the duration of residency training programmes, and especially in the choice of obligatory rotations to external medical disciplines. Despite a presumably similar spectrum of patients, neurology residency training programmes across Europe are not harmonized. The structure of the programme should be determined by its relevance for neurologists today and in the future.
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Affiliation(s)
- N N Kleineberg
- Department of Neurology, Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany.,Cognitive Neuroscience, Institute of Neuroscience and Medicine (INM-3), Research Centre Jülich, Jülich, Germany
| | - M van der Meulen
- Department of Neuro-Oncology, Erasmus MC Cancer Institute, Brain Tumor Center, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - C Franke
- Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - L Klingelhoefer
- Department of Neurology, Technical University Dresden, Dresden, Germany
| | - A Sauerbier
- Department of Neurology, Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany.,Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.,Department of Neurology, King's College Hospital, London, UK
| | - G Di Liberto
- Division of Neurology, Department of Clinical Neurosciences, University Hospital of Lausanne, University of Lausanne, Lausanne, Switzerland
| | - V Carvalho
- Department of Neurology, Matosinhos Local Unit, Hospital Pedro Hispano, Senhora da Hora, Portugal
| | - H W Berendse
- Department of Neurology, Amsterdam University Medical Centers, location VU University Medical Center, Amsterdam, the Netherlands
| | - G Deuschl
- Department of Neurology, Christian-Albrechts-University, Kiel, Germany
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Abstract
BACKGROUND The development of delirium in patients with idiopathic Parkinson's disease (IPD) is a feared complication, which is often associated with sustained worsening of motor symptoms and psychopathological sequelae. Little is known regarding the prevalence and incidence rates, course and prognosis. Clinical studies from which recommendations for evidence-based management of delirium in IPD can be derived are lacking. OBJECTIVE To summarize the state of the art regarding epidemiological and clinical features of delirium in IPD. Discussion of prevention strategies and non-pharmacological and pharmacological treatment options. METHODS A literature search was carried out in PubMed. RESULTS The IPD is an independent risk factor for the development of delirium. Patients with IPD show poorer clinical outcome frequently with cognitive worsening and motor complications following development of delirium. CONCLUSION So far no validated rating scales for recognition and course evaluation of delirium in IPD are available. Preventive strategies and non-pharmacological measures should be consistently implemented to improve management. There are insufficient data concerning pharmacotherapy with quetiapine and clozapine, whereas other neuroleptics are contraindicated for delirium in IPD due to antidopaminergic side effects.
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Affiliation(s)
- C Franke
- Klinik und Hochschulambulanz für Neurologie, Charité - Universitätsmedizin Berlin, Berlin, Deutschland.
| | - G Ebersbach
- Neurologisches Fachkrankenhaus für Bewegungsstörungen/Parkinson, Straße nach Fichtenwalde 16, 14547, Beelitz-Heilstätten, Deutschland
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18
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Grohé C, Gleiber W, Haas S, Losem C, Mueller-Huesmann H, Schulze M, Franke C, Basara N, Atz J, Kaiser R. Nintedanib plus docetaxel after progression on immune checkpoint inhibitor therapy: insights from VARGADO, a prospective study in patients with lung adenocarcinoma. Future Oncol 2019; 15:2699-2706. [DOI: 10.2217/fon-2019-0262] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Aim: To assess outcomes in patients with advanced adenocarcinoma non-small-cell lung cancer who received nintedanib plus docetaxel after progression on prior chemotherapy followed by immune checkpoint inhibitor (ICI) therapy. Patients & methods: VARGADO is a prospective, noninterventional study. We describe initial data from a cohort of 22 patients who received nintedanib plus docetaxel after chemotherapy and ICI therapy. Results: Median progression-free survival with nintedanib plus docetaxel was 5.5 months (95% CI: 1.9–8.7 months). The objective response rate was 7/12 (58%) and the disease control rate was 10/12 (83%). Data for overall survival rate 12 months after the start of treatment (primary end point) are not yet mature and are not reported. Of 22 patients, 73% experienced drug-related adverse events; adverse events led to treatment discontinuation in 32% of patients. Conclusion: These data highlight the potential clinical benefit of nintedanib plus docetaxel in patients who failed prior ICI therapy. Trial registration number: NCT02392455
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Affiliation(s)
- Christian Grohé
- Department of Respiratory Diseases, ELK, 13125, Berlin, Germany
| | - Wolfgang Gleiber
- University Hospital Frankfurt, Pneumology/Allergology, 60590 Frankfurt, Germany
| | - Siegfried Haas
- Friedrich-Ebert Hospital Neumuenster, Clinics for Hematology, Oncology & Nephrology, 24534 Neumuenster, Germany
| | - Christoph Losem
- MVZ für Onkologie und Hämatologie im Rhein-Kreis Neuss, 41462 Neuss, Germany
| | | | | | | | - Nadezda Basara
- Department of Internal Medicine, Malteser Hospital, St Franziskus, 24939 Flensburg, Germany
| | - Judith Atz
- Medical Affairs Oncology, Boehringer Ingelheim Pharma GmbH & Co KG, 55216 Ingelheim Am Rhein, Germany
| | - Rolf Kaiser
- Boehringer Ingelheim Pharma GmbH & Co, KG, 55216 Ingelheim Am Rhein, Germany
- Institute of Pharmacology, Johannes Gutenberg-University Mainz, 55122 Mainz, Germany
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19
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Affiliation(s)
- Christian Franke
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany.
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20
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Grohe C, Zander I, Lüdtke-Heckenkamp K, Blau W, Krüger S, Franke C, Mueller-Huesmann H, Brückl W, Basara N, Ukena D, Lang S, Atz J, Kaiser R. Nintedanib plus docetaxel in routine clinical practice: VARGADO, a German prospective non-interventional study (NIS) reflecting routine treatment conditions in an evolving NSCLC treatment landscape. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Trojano M, Butzkueven H, Kappos L, Wiendl H, Spelman T, Pellegrini F, Chen Y, Dong Q, Koendgen H, Belachew S, Correale J, Caride A, Deri NH, Ballario C, Broadley S, Kneebone C, Barnett M, Pollard J, Hodgkinson S, Kermode A, Macdonell R, King J, Butzkueven H, Lechner-Scott J, Saines N, Slee M, Plummer C, Willekens B, Vanopdenbosch L, Belachew S, Phan-Ba R, Delvaux V, Bissay V, Debruyne J, Decoo D, Crols R, Symons A, Nagels G, Van Pesch V, Sindic C, Dubois B, Medaer R, D'Hooghe M, Guillaume D, De Smet E, Seeldrayers P, Lysandropoulos A, Vokaer M, Geens K, Willems C, Denayer P, Bureau M, Retif C, Dupuis M, Bouquiaux O, Vanderdonckt P, van Landegem W, Caekebeke J, Van Ingelghem E, Peeters K, Gerard P, de Noordhout AM, Desfontaines P, Urbain E, Declercq I, Van Wijmeersch B, Vanroose E, Wibail A, Barthomolé E, Ursell M, Sweet ME, Howse D, Jichici D, Shawush M, Namaka M, Traboulsee A, Hashimoto S, Lo R, Marchetti P, Lapierre Y, Jacques F, MacLean G, Bhan V, Duquette P, Stewart B, Paulseth J, Kremenchutzky M, Vorobeychik G, O'Connor P, Grand'Maison F, Havrdova E, Meluzinová E, Valis M, Talab R, Stourac P, Zapletalová O, Dufek M, Sládková V, Novotna A, Vancurová R, Lhotaková L, Fiedler J, Vachova M, Dolezil D, Stetkarova I, Rehankova A, Psenica P, Ulehlova V, Feketova S, Skoda O, Färkkilä M, Taneli S, Koivisto K, Seppä JM, Airas L, Elovaara I, Hartikainen P, Pirttila T, Louchart P, Ille O, Thenint JP, Godet E, Vioud MM, Colamarino R, Gugenheim M, Grimaud J, Kopf A, Billy C, Huttin B, Borsotti JP, Devos P, Kendjuo JBN, Verier A, Chapuis S, Daluzeau N, Angibaud G, Uriot MSA, Ziegler F, Sellal F, Moulignier A, Lavenu I, Ismail S, Devy R, Suceveanu M, Wagner M, Marcel S, Derouiche F, Mostoufizadehghalamfarsa S, Delalande S, Ruggieri I, Van Nieuwenhuyse CB, Nifle C, Ondze B, Vasilescu CG, Vongsouthi C, Coustans M, Anne O, Amevigbe J, Servan J, Merienne M, Eck P, Berroir S, Busson P, Barroso B, Larrieu JM, Giendaj CL, Malkoun I, Hautecoeur P, Kwiatkowski A, Pouliquen A, Garrigues G, Delerue O, Giraud P, Gere J, Vaunaize J, Dereeper O, Seiller N, Alsassa R, Vlaicu M, Neuville V, Faucheux JM, Bernady P, Fanjaud G, Viallet F, Schroeter M, Schlemilch-Paschen S, Lange T, Bohr KA, Jendroska K, Rehkopf E, Bergmann A, Kleinschnitz C, Postert T, Scholz P, Mauz U, Stratmann H, Siefjediers V, Prantl M, Gehring K, Zellner R, Junge K, Zellner A, Bacay V, Schlegel E, Polzer U, Strauss E, Link A, Stenzel C, Freidel M, Drews J, Neudert C, Schmitz F, Jaeger J, Masri S, Heuberger W, Trausch B, Ruhnke O, Scarel S, Bach K, Ernst M, Landefeld H, Richter N, Schmidt S, Krause M, Dressel A, Ruth R, Anvari K, Gossling J, Schenk C, Tiedge O, Bode L, Eder HT, Pfeffer O, Krug R, Lassek C, Fleischer E, Meuth S, Klotz LH, Peglau I, Kukowski B, Herting B, Guthke K, Schierenbeck J, Brockmeier B, Albrecht H, Wuttke M, Augspach-Hofmann R, Gunther S, Redbrake M, Franke C, Buchner K, Gratz T, Horn R, Doemges F, Schreiber M, Brosch T, Horn M, Kittlitz M, Vulturius G, Hinse P, Malessa R, Wiehler S, Katsarava Z, Kastrup O, Kausch U, Gullekes M, Fickinger M, Wenzel W, Botefur IC, Reifschneider G, Rauer S, Lang M, Harms L, Eckhardt U, Cursiefen S, Linker R, Angstwurm K, Haas J, Schuetze I, Rohm E, Stienker-Fisse H, Sailer M, Bohringer J, Maurer M, Bause E, Wersching R, Dachsel R, Domke S, Hoffman F, Tackenberg B, Roch K, Ziebold U, Kallmann B, Buehler B, Faiss J, Faiss J, Schimrigk S, Menges C, Knop KC, Koehler W, Siever A, Bufler J, Gramsl G, Kuhnler B, Maschke M, Stogbauer F, Staude L, Bethke F, Bitsch A, Harmjanz AD, Windsheimer J, Kieseier BC, Berkenfeld R, Tumani H, Kirsch M, Wildemann B, Daniels R, Gottwald K, Elias WG, Hoffmann O, Schwab M, Pilz C, Klostermann F, Hellwig K, Berthele A, Bayas A, Molitor D, Grothe C, Wagner B, Karageorgiou K, Mitsikostas D, Kodounis A, Plaitakis A, Papadimitriou A, Grigoriadis N, Vlaikidis N, Koutlas E, Kyritsis A, Papathanassopoulos P, Makris N, Tavernarakis A, Scarpini E, Montanari E, Marrosu MG, Trojano M, Amato MP, Rottoli M, Lugaresi A, Florio C, Gasperini C, Grimaldi L, Millefiorini E, Koudriavtseva T, Perla F, Mantegazza R, Bertolotto A, Ghezzi A, Aguilar SQ, Eisenberg ES, Lopez LL, Estudillo RM, Schrijver H, Wittebol M, Baart J, van Golde A, Hengstman G, Pop P, Bos (Geldrop) M, Medaer R, Schyns-Soeterboek A, van der Zwart A, van Diepen A, Verheul G, Verhagen W, Bos (Helmond) M, Witjes R, Sinnige L, van Munster E, Sanders E, van Dijl R, Hupperts R, Frequin S, Visser L, Henselmans J, Moll J, Midgard R, Myhr KM, Edland A, Telstad W, Hognestad T, Lund C, Hovdal H, Kamaljit K, Schepel J, Hogenesch RI, Schüler S, Odeh F, Alstadhaug KB, Korsgaard O, Farbu E, Ingvaldsen TB, Soares (SCO) D, Rente J, Guerra JMC, Morganho A, Leitão A, de Sá J, Sá MJ, Marques P, Veloso M, Baptista MV, Szilasiová J, Copikova-Cudrakova D, Prochazkova L, Klimová E, Donath V, Brozman M, Ramo C, Ruiz DP, Hernández CC, Sola MEM, Moro RS, Vidal JA, Rodríguez ABC, Ozaeta GM, Nadal JB, Esquide AADA, Urtaza JO, Martínez-Yélamos S, Arbizu T, Torrenta LRI, Boggild M, Wilson M, Al-Araji A, Nicholas R, Harrower T, Redmond I, Wolf T, Osei-Bonsu M, Mazibrada G, Rog D, Cottrell D, Constantinescu C, Gray O, Belhag M, Shehu A, Rashid W, Duddy M. Natalizumab treatment shows low cumulative probabilities of confirmed disability worsening to EDSS milestones in the long-term setting. Mult Scler Relat Disord 2018; 24:11-19. [DOI: 10.1016/j.msard.2018.04.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 04/24/2018] [Accepted: 04/30/2018] [Indexed: 11/30/2022]
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Rau H, Lohmann K, Franke C, Goretzki G, Lemb MA, Müller J, Panholzer PJ, Stelling E, Spitz J. Multicenter study of radiosynoviorthesis. Nuklearmedizin 2018. [DOI: 10.1055/s-0038-1625592] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Summary
Aim: Evaluation of the effectiveness of radiosynoviorthesis (RSO) in osteoarthritis and other disorders with concomitant synovitis versus rheumatoid arthritis by means of a standardized questionnaire. Patients, methods: 803 RSO treatments were monitored in 691 patients by standardized questionnaires of 7 centers in 3 countries. Patients were assigned to 3 groups according to their age (20-40, 41-60, 61-80 years). Additionally, the data were analyzed separately for patients with rheumatoid arthritis (group A) and those with osteoarthritis, psoriasis arthritis, pigmental villonodular synovitis or persistent effusions after joint replacement (group B). Results: Ameliorations of joint pain, swelling/effusion or flexibility were found in 80% of group A and 56% of group B (p <0.01). Quality of life improved in 78% of group A and 59% of group B (p <0.01). The response rate was similar for small- and large-sized joints in group A, but significantly higher for large-sized joints in group B (p <0.01). The positive effects on joint pain, swell-ing/effusion or flexibility lasted longer in group A (p <0.01). Repeated RSOs were as effective as initial ones. The clinical outcome was neither influenced by age, nor gender, nor transient immobilisation for 48 hours after RSO. Conclusion: Although slightly more efficient in rheumatoid arthritis, RSO represents an effective treatment option also in osteoarthritis and other disorders with concomitant synovitis.
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Heinemann K, Dinger J, Minh TD, Franke C. Cardiovascular safety among users of different combined oral contraceptives — final results from the INAS-SCORE study. Contraception 2017. [DOI: 10.1016/j.contraception.2017.07.114] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Heinemann K, Dinger J, Möhner S, Franke C. Unintended pregnancies among users of different combined oral contraceptives — final results from the INAS-SCORE study. Contraception 2017. [DOI: 10.1016/j.contraception.2017.07.115] [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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Michie MS, Götz R, Franke C, Bowler M, Kumari N, Magidson V, Levitus M, Loncarek J, Sauer M, Schnermann MJ. Cyanine Conformational Restraint in the Far-Red Range. J Am Chem Soc 2017; 139:12406-12409. [PMID: 28862842 DOI: 10.1021/jacs.7b07272] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Far-red cyanine fluorophores find extensive use in modern microscopy despite modest quantum yields. To improve the photon output of these molecules, we report a synthetic strategy that blocks the major deactivation pathway: excited-state trans-to-cis polyene rotation. In the key transformation, a protected dialdehyde precursor undergoes a cascade reaction to install the requisite tetracyclic ring system. The resulting molecules exhibit the characteristic features of conformational restraint, including improved fluorescence quantum yield and extended lifetime. Moreover, these compounds recover from hydride reduction with dramatically improved efficiency. These observations enable efficient single-molecule localization microscopy in oxygenated buffer without addition of thiols. Enabled by modern organic synthesis, these studies provide a new class of far-red dyes with promising spectroscopic and chemical properties.
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Affiliation(s)
- Megan S Michie
- Laboratory of Chemical Biology, NIH/NCI/CCR , 376 Boyles Street, Frederick, Maryland 21702, United States
| | - Ralph Götz
- Department of Biotechnology and Biophysics, Julius Maximilian University Würzburg , Am Hubland 97074 Würzburg, Germany
| | - Christian Franke
- Department of Biotechnology and Biophysics, Julius Maximilian University Würzburg , Am Hubland 97074 Würzburg, Germany
| | - Matthew Bowler
- Optical Microscopy and Analysis Laboratory, NIH/NCI/CCR , 1050 Boyles Street, Frederick, Maryland 21702, United States
| | - Nikita Kumari
- School of Molecular Sciences and The Biodesign Institute at Arizona State University , Tempe, Arizona 85287, United States
| | - Valentin Magidson
- Optical Microscopy and Analysis Laboratory, Leidos Biomedical Res. Inc., Frederick National Laboratory for Cancer Research , Frederick, Maryland 21702, United States
| | - Marcia Levitus
- School of Molecular Sciences and The Biodesign Institute at Arizona State University , Tempe, Arizona 85287, United States
| | - Jadranka Loncarek
- Laboratory of Protein Dynamics and Signaling, NIH/NCI/CCR , 1050 Boyles Street, Frederick, Maryland 21702, United States
| | - Markus Sauer
- Department of Biotechnology and Biophysics, Julius Maximilian University Würzburg , Am Hubland 97074 Würzburg, Germany
| | - Martin J Schnermann
- Laboratory of Chemical Biology, NIH/NCI/CCR , 376 Boyles Street, Frederick, Maryland 21702, United States
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Jiang J, Kuo CL, Wu L, Franke C, Kallemeijn WW, Florea BI, van Meel E, van der Marel GA, Codée JDC, Boot RG, Davies GJ, Overkleeft HS, Aerts JMFG. Correction to "Detection of Active Mammalian GH31 α-Glucosidases in Health and Disease Using In-Class, Broad-Spectrum Activity-Based Probes". ACS Cent Sci 2017; 3:673. [PMID: 28691081 PMCID: PMC5492415 DOI: 10.1021/acscentsci.7b00185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Indexed: 06/07/2023]
Abstract
[This corrects the article DOI: 10.1021/acscentsci.6b00057.].
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Franke C, Stenzel O, Wilbrandt S, Schröder S, Coriand L, Felde N, Tünnermann A. Porosity and optical properties of zirconia films prepared by plasma ion assisted deposition. Appl Opt 2017; 56:3913-3922. [PMID: 28463286 DOI: 10.1364/ao.56.003913] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The porosity of zirconia films prepared by plasma ion assisted deposition has been investigated by means of optical (spectrophotometric) and nonoptical analytic techniques such as transmission electron microscopy, x-ray reflection, and energy dispersive x-ray spectroscopy. A discrimination between large (open) and small (closed) pores was achieved by means of measurement of the thermal and vacuum-to-air shift. Depending on the level of plasma assistance during film preparation, the porosity was found to vary between 30 vol. % and nearly 0 vol. %. With decreasing porosity, the surface roughness determined by atomic force microscopy tends to decrease as well.
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Randerath W, Bögel M, Franke C, Hellmann A, Jany B, Nilius G, Penzel T, Voshaar T, Wiater A. Positionspapier zum Telemonitoring bei schlafbezogenen Atmungsstörungen. Somnologie 2017. [DOI: 10.1007/s11818-017-0099-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Randerath W, Bögel M, Franke C, Hellmann A, Jany B, Nilius G, Penzel T, Voshaar T, Wiater A. [Positionpaper on Telemonitoring in Sleep-Related Breathing Disorders]. Pneumologie 2017; 71:81-85. [PMID: 28222476 DOI: 10.1055/s-0042-124083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The use of telemonitoring in the care of patients with Sleep-related Breathing Disorders (SBD) can enhance medical support significantly. Telemonitoring aims at helping physicians to detect therapy problems early and thus improve patients' therapy adherence. Diagnostics and therapy decisions in the telemonitoring process nevertheless remain the responsibility of sleep specialists. The selection of data monitored, their evaluation and resulting consequences fall to the physician, who makes decisions and prescribes therapy in consultation with the patient. In light of professional legal and ethical requirements, it must be ensured that the extensive changes to the process flow in sleep medicine are designed in a way to guarantee high-quality patient care. In this position paper, the German Sleep Society, the German Respiratory Society, the Association of Pneumological Hospitals and the Federal Association of German Pneumologists comment on important aspects for implementation of telemonitoring for SRBD and describe the basic conditions required for its use.
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Affiliation(s)
- W Randerath
- Für die Deutsche Gesellschaft für Schlafforschung und Schlafmedizin
| | - M Bögel
- Für die Deutsche Gesellschaft für Schlafforschung und Schlafmedizin
| | - C Franke
- Für den Bundesverband der Pneumologen, Schlaf- und Beatmungsmediziner
| | - A Hellmann
- Für den Bundesverband der Pneumologen, Schlaf- und Beatmungsmediziner
| | - B Jany
- Für die Deutsche Gesellschaft für Pneumologie und Beatmungsmedizin
| | - G Nilius
- Für die Deutsche Gesellschaft für Pneumologie und Beatmungsmedizin
| | - T Penzel
- Für die Deutsche Gesellschaft für Schlafforschung und Schlafmedizin
| | - T Voshaar
- Für den Verband Pneumologischer Kliniken
| | - A Wiater
- Für die Deutsche Gesellschaft für Schlafforschung und Schlafmedizin
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Jiang J, Kuo CL, Wu L, Franke C, Kallemeijn W, Florea BI, van Meel E, van der Marel GA, Codée JDC, Boot RG, Davies GJ, Overkleeft HS, Aerts JMFG. Detection of Active Mammalian GH31 α-Glucosidases in Health and Disease Using In-Class, Broad-Spectrum Activity-Based Probes. ACS Cent Sci 2016; 2:351-8. [PMID: 27280170 PMCID: PMC4882745 DOI: 10.1021/acscentsci.6b00057] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Indexed: 05/11/2023]
Abstract
The development of small molecule activity-based probes (ABPs) is an evolving and powerful area of chemistry. There is a major need for synthetically accessible and specific ABPs to advance our understanding of enzymes in health and disease. α-Glucosidases are involved in diverse physiological processes including carbohydrate assimilation in the gastrointestinal tract, glycoprotein processing in the endoplasmic reticulum (ER), and intralysosomal glycogen catabolism. Inherited deficiency of the lysosomal acid α-glucosidase (GAA) causes the lysosomal glycogen storage disorder, Pompe disease. Here, we design a synthetic route for fluorescent and biotin-modified ABPs for in vitro and in situ monitoring of α-glucosidases. We show, through mass spectrometry, gel electrophoresis, and X-ray crystallography, that α-glucopyranose configured cyclophellitol aziridines label distinct retaining α-glucosidases including GAA and ER α-glucosidase II, and that this labeling can be tuned by pH. We illustrate a direct diagnostic application in Pompe disease patient cells, and discuss how the probes may be further exploited for diverse applications.
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Affiliation(s)
- Jianbing Jiang
- Department
of Bio-organic Synthesis, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Chi-Lin Kuo
- Department
of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Liang Wu
- Department
of Chemistry, University of York, Heslington, York, YO10
5DD, U.K.
| | - Christian Franke
- Department
of Bio-organic Synthesis, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Wouter
W. Kallemeijn
- Department
of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Bogdan I. Florea
- Department
of Bio-organic Synthesis, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Eline van Meel
- Department
of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Gijsbert A. van der Marel
- Department
of Bio-organic Synthesis, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Jeroen D. C. Codée
- Department
of Bio-organic Synthesis, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Rolf G. Boot
- Department
of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Gideon J. Davies
- Department
of Chemistry, University of York, Heslington, York, YO10
5DD, U.K.
| | - Herman S. Overkleeft
- Department
of Bio-organic Synthesis, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
- E-mail:
| | - Johannes M. F. G. Aerts
- Department
of Medical Biochemistry, Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
- E-mail:
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Schneider J, Klein T, Mielich-Süss B, Koch G, Franke C, Kuipers OP, Kovács ÁT, Sauer M, Lopez D. Spatio-temporal remodeling of functional membrane microdomains organizes the signaling networks of a bacterium. PLoS Genet 2015; 11:e1005140. [PMID: 25909364 PMCID: PMC4409396 DOI: 10.1371/journal.pgen.1005140] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 03/11/2015] [Indexed: 11/18/2022] Open
Abstract
Lipid rafts are membrane microdomains specialized in the regulation of numerous cellular processes related to membrane organization, as diverse as signal transduction, protein sorting, membrane trafficking or pathogen invasion. It has been proposed that this functional diversity would require a heterogeneous population of raft domains with varying compositions. However, a mechanism for such diversification is not known. We recently discovered that bacterial membranes organize their signal transduction pathways in functional membrane microdomains (FMMs) that are structurally and functionally similar to the eukaryotic lipid rafts. In this report, we took advantage of the tractability of the prokaryotic model Bacillus subtilis to provide evidence for the coexistence of two distinct families of FMMs in bacterial membranes, displaying a distinctive distribution of proteins specialized in different biological processes. One family of microdomains harbors the scaffolding flotillin protein FloA that selectively tethers proteins specialized in regulating cell envelope turnover and primary metabolism. A second population of microdomains containing the two scaffolding flotillins, FloA and FloT, arises exclusively at later stages of cell growth and specializes in adaptation of cells to stationary phase. Importantly, the diversification of membrane microdomains does not occur arbitrarily. We discovered that bacterial cells control the spatio-temporal remodeling of microdomains by restricting the activation of FloT expression to stationary phase. This regulation ensures a sequential assembly of functionally specialized membrane microdomains to strategically organize signaling networks at the right time during the lifespan of a bacterium. Cellular membranes organize proteins related to signal transduction, protein sorting and membrane trafficking into the so-called lipid rafts. It has been proposed that the functional diversity of lipid rafts would require a heterogeneous population of raft domains with varying compositions. However, a mechanism for such diversification is not known due in part to the complexity that entails the manipulation of eukaryotic cells. The recent discovery that bacteria organize many cellular processes in membrane microdomains (FMMs), functionally similar to the eukaryotic lipid rafts, prompted us to explore FMMs diversity in the bacterial model Bacillus subtilis. We show that diversification of FMMs occurs in cells and gives rise to functionally distinct microdomains, which compartmentalize distinct signal transduction pathways and regulate the expression of different genetic programs. We discovered that FMMs diversification does not occur randomly. Cells sequentially regulate the specialization of the FMMs during cell growth to ensure an effective and diverse activation of signaling processes.
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Affiliation(s)
- Johannes Schneider
- Research Center for Infectious Diseases ZINF, University of Würzburg, Würzburg, Germany
| | - Teresa Klein
- Department of Biotechnology and Biophysics, University of Würzburg, Würzburg, Germany
| | - Benjamin Mielich-Süss
- Research Center for Infectious Diseases ZINF, University of Würzburg, Würzburg, Germany
| | - Gudrun Koch
- Research Center for Infectious Diseases ZINF, University of Würzburg, Würzburg, Germany
| | - Christian Franke
- Department of Biotechnology and Biophysics, University of Würzburg, Würzburg, Germany
| | - Oscar P. Kuipers
- Molecular Genetics Group,Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, The Netherlands
| | - Ákos T. Kovács
- Terrestrial Biofilms Group, Institute of Microbiology, Friedrich Schiller University of Jena, Jena, Germany
| | - Markus Sauer
- Department of Biotechnology and Biophysics, University of Würzburg, Würzburg, Germany
| | - Daniel Lopez
- Research Center for Infectious Diseases ZINF, University of Würzburg, Würzburg, Germany
- * E-mail:
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Franke C, Stenzel O, Wilbrandt S, Wolf J, Kaiser N, Tünnermann A. Estimation of the composition of coelectron-beam-evaporated thin-mixture films by making use of the Wiener bounds. Appl Opt 2015; 54:2362-2370. [PMID: 25968522 DOI: 10.1364/ao.54.002362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 02/09/2015] [Indexed: 06/04/2023]
Abstract
Material mixtures offer prospective possibilities for synthesizing coating materials with tailored optical constants. We present experimental results for mixture coatings of alumina/aluminum fluoride and alumina/hafnia deposited by electron beam evaporation. Thereby, the volume filling factors of the components are commonly estimated on the basis of deposition rates measured by quartz crystal microbalance. The interplay between the vapor fluxes from the two evaporation sources, the crosstalk between quartz crystal microbalances, and the influence of the plasma source on the tooling factors limit the accuracy of this estimation, and this has motivated us to develop an alternative approach. The general idea of our approach is based on the commonly high accuracy in thin-film optical constant determination using spectrophotometry. Therefore, these optical constants serve as a reliable input for a rather simple but robust evaluation procedure based on the concept of Wiener bounds. The consistency of the obtained results is illustrated by opposing the data to the elementary film composition estimated from energy-dispersive x-ray spectroscopy.
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Günther K, Siegel M, Franke A, Bauer C, Franke C. Erfolgreiche Entwöhnung durch Netzwerkarbeit in der ambulanten außerklinischen Intensivpflege. Pneumologie 2015. [DOI: 10.1055/s-0034-1396575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Letschert S, Göhler A, Franke C, Bertleff-Zieschang N, Memmel E, Doose S, Seibel J, Sauer M. Super-resolution imaging of plasma membrane glycans. Angew Chem Int Ed Engl 2014; 53:10921-4. [PMID: 25164466 DOI: 10.1002/anie.201406045] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [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: 06/10/2014] [Indexed: 01/21/2023]
Abstract
Much of the physiology of cells is controlled by the spatial organization of the plasma membrane and the glycosylation patterns of its components, however, studying the distribution, size, and composition of these components remains challenging. A bioorthogonal chemical reporter strategy was used for the efficient and specific labeling of membrane-associated glycoconjugates with modified monosaccharide precursors and organic fluorophores. Super-resolution fluorescence imaging was used to visualize plasma membrane glycans with single-molecule sensitivity. Our results demonstrate a homogeneous distribution of N-acetylmannosamine (ManNAc)-, N-acetylgalactosamine (GalNAc)-, and O-linked N-acetylglucosamine (O-GlcNAc)-modified plasma membrane proteins in different cell lines with densities of several million glycans on each cell surface.
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Affiliation(s)
- Sebastian Letschert
- Department of Biotechnology & Biophysics, Julius Maximilian University Wuerzburg, Am Hubland, 97074 Würzburg (Germany) http://www.super-resolution.de
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Letschert S, Göhler A, Franke C, Bertleff-Zieschang N, Memmel E, Doose S, Seibel J, Sauer M. Super-Resolution Imaging of Plasma Membrane Glycans. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406045] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Löschberger A, Franke C, Krohne G, van de Linde S, Sauer M. Correlative super-resolution fluorescence and electron microscopy of the nuclear pore complex with molecular resolution. J Cell Sci 2014; 127:4351-5. [PMID: 25146397 DOI: 10.1242/jcs.156620] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Here, we combine super-resolution fluorescence localization microscopy with scanning electron microscopy to map the position of proteins of nuclear pore complexes in isolated Xenopus laevis oocyte nuclear envelopes with molecular resolution in both imaging modes. We use the periodic molecular structure of the nuclear pore complex to superimpose direct stochastic optical reconstruction microscopy images with a precision of <20 nm on electron micrographs. The correlative images demonstrate quantitative molecular labeling and localization of nuclear pore complex proteins by standard immunocytochemistry with primary and secondary antibodies and reveal that the nuclear pore complex is composed of eight gp210 (also known as NUP210) protein homodimers. In addition, we find subpopulations of nuclear pore complexes with ninefold symmetry, which are found occasionally among the more typical eightfold symmetrical structures.
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Affiliation(s)
- Anna Löschberger
- Department of Biotechnology and Biophysics, Biozentrum, Julius Maximilian University Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Christian Franke
- Department of Biotechnology and Biophysics, Biozentrum, Julius Maximilian University Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Georg Krohne
- Department of Electron Microscopy, Biozentrum, Julius Maximilian University Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Sebastian van de Linde
- Department of Biotechnology and Biophysics, Biozentrum, Julius Maximilian University Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Markus Sauer
- Department of Biotechnology and Biophysics, Biozentrum, Julius Maximilian University Würzburg, Am Hubland, 97074 Würzburg, Germany
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Asani H, Erdmann C, Aigner T, Berghäußer U, Linsmeier B, Koch A, Franke C. Drei meta-/synchrone Adenokarzinome der Lunge 2010/13 mit differierenden, komplexen Mutationen des Exon 19 oder Deletion des Exon 21 – ein Fallbericht. Pneumologie 2014. [DOI: 10.1055/s-0033-1364129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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van de Linde S, Aufmkolk S, Franke C, Holm T, Klein T, Löschberger A, Proppert S, Wolter S, Sauer M. Investigating cellular structures at the nanoscale with organic fluorophores. ACTA ACUST UNITED AC 2013; 20:8-18. [PMID: 23352135 DOI: 10.1016/j.chembiol.2012.11.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 09/10/2012] [Accepted: 11/02/2012] [Indexed: 01/31/2023]
Abstract
Super-resolution fluorescence imaging can provide insights into cellular structure and organization with a spatial resolution approaching virtually electron microscopy. Among all the different super-resolution methods single-molecule-based localization microscopy could play an exceptional role in the future because it can provide quantitative information, for example, the absolute number of biomolecules interacting in space and time. Here, small organic fluorophores are a decisive factor because they exhibit high fluorescence quantum yields and photostabilities, thus enabling their localization with nanometer precision. Besides past progress, problems with high-density and specific labeling, especially in living cells, and the lack of suited standards and long-term continuous imaging methods with minimal photodamage render the exploitation of the full potential of the method currently challenging.
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Affiliation(s)
- Sebastian van de Linde
- Department of Biotechnology and Biophysics, Biozentrum, Julius-Maximilians-University Würzburg, Am Hubland, 97074 Würzburg, Germany
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Westphal GA, Caldeira Filho M, Fiorelli A, Vieira KD, Zaclikevis V, Bartz M, Wanzuita R, Teixeira C, Franke C, Machado FO, Friedman G, Andrade J, Matos JD, Lamgaro DM, Silva E, Costa G, Coelho ME, Oliveira MC, Youssef NCM, Akamine N, Duarte P, Lisboa R, Mazzali M, Ferraz Neto BH. Guidelines for maintenance of adult patients with brain death and potential for multiple organ donations: the Task Force of the Brazilian Association of Intensive Medicine the Brazilian Association of Organs Transplantation, and the Transplantation Center of Santa Catarina. Transplant Proc 2013; 44:2260-7. [PMID: 23026569 DOI: 10.1016/j.transproceed.2012.07.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
INTRODUCTION The organ shortage for transplantation, the principal factor that increases waiting lists, has become a serious public health problem. In this scenario, the intensivist occupies a prominent position as one of the professionals that first has a chance to identify brain death and to be responsible for the maintenance of the potential deceased donor. OBJECTIVE This report attempts to establish guidelines for care and maintenance of adult deceased donor organs guiding and standardizing care provided to patients with brain death. METHOD These guidelines were composed by intensivists, transplant coordinators, professionals from various transplant teams, and used transplant center. The formulated questions were forwarded to all members and recommendations were constructed after an extensive literature review selecting articles with the highest degree of evidence. RESULTS Guidelines were developed in the form of questions reflecting frequent experiences in clinical intensive care practices. The main questions were: Is there an optimal interval for keeping organs of deceased donors viable? What actions are considered essential for maintaining deceased donors in this period? What are the limits of body temperature? How should the patient be warmed? Which laboratory tests should be performed? What is the collection interval? What are the limits in the laboratory and the capture scenario? What are the limits of blood pressure? When and how should one use catecholamines? CONCLUSIONS This pioneer project involved a multidisciplinary team working in organ transplantation seeking to provide treatment guidance to increase the number of viable organs from deceased adult donors.
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Affiliation(s)
- G A Westphal
- Brazilian Association of Intensive Medicine, the Brazilian Association of Organ Transplants (ABTO), and the Transplantation Center of Santa Catarina (SC-Tx), Santa Catarina, Brazil
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Kardos P, Lerche K, Alakmeh H, Franke C, Aalamian-Mattheis M. Langfristige Verbesserung des Asthmas durch Omalizumab. Pneumologie 2013. [DOI: 10.1055/s-0033-1334733] [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: 10/27/2022]
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Hohenforst-Schmidt W, Riedel A, Zarogoulidis P, Franke C, Gschwendtner A, Huang H, Machairiotis N, Dramba V, Zarogoulidis K, Brachmann J. Chronic eosinophilic pneumonia due to radiographic contrast administration: an orphan disease? Drug Des Devel Ther 2012; 6:385-9. [PMID: 23251088 PMCID: PMC3523559 DOI: 10.2147/dddt.s37937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Pulmonary eosinophilia comprises a heterogeneous group of diseases that are defined by eosinophilia in pulmonary infiltrates or in tissue. Drugs can cause almost all histopathologic patterns of interstitial pneumonias, such as cellular and fibrotic nonspecific interstitial pneumonia, pulmonary infiltrates and eosinophilia, organizing pneumonia, lymphocytic interstitial pneumonia, desquamative interstitial pneumonia, a pulmonary granulomatosis-like reaction, and a usual interstitial pneumonia-like pattern. We present a very rare case of chronic eosinophilic pneumonia due to radiographic contrast infusion diagnosed with video-assisted thoracoscopy. The patient after 1 year is still under corticosteroid treatment with the disease stabilized.
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Hohenforst-Schmidt W, Riedel A, Franke C, Brachmann J, Gschwendtner A. Chronisch interstitielle und fibrosierende Pneumonitis mit interstitiellen Eosinophilen – eine seltene Reaktion nach Kontrastmittelgabe bei einer Koronarangiografie. Pneumologie 2012. [DOI: 10.1055/s-0032-1302698] [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: 10/28/2022]
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Eckert⁎ G, Franke C, Nöldner M, Rau O, Wurglics M, Schubert-Zsilavecz M. Plant derived omega-3-fatty acids protect mitochondrial function in the brain. Eur J Pharmacol 2011. [DOI: 10.1016/j.ejphar.2011.09.282] [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: 10/16/2022]
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Franke J, Balogh A, Mohorn M, Franke M, Heschel U, Franke C. Unspezifische bronchiale Provokation (UBP) im modifizierten 2-Stufen-Test, Vergleich der Provokationssubstanzen Carbachol und Metacholin mit der Provojet®- Methode. Pneumologie 2010. [DOI: 10.1055/s-2010-1268884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bardenheuer K, Dinger J, Möhner S, Franke C. Sicherheit und Effektivität von Oralen Kontrazeptiva bei Jugendlichen. Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chan A, Decard BF, Franke C, Grummel V, Zhou D, Schottstedt V, Toyka KV, Hemmer B, Gold R. Serum antibodies to conformational and linear epitopes of myelin oligodendrocyte glycoprotein are not elevated in the preclinical phase of multiple sclerosis. Mult Scler 2010; 16:1189-92. [DOI: 10.1177/1352458510376406] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Background: The proposed predictive value of serum anti-myelin antibodies for the development of multiple sclerosis after a first clinically isolated syndrome was recently challenged. Objective: To investigate myelin autoantibodies before first disease manifestation using different detection methods. Methods: Patients with multiple sclerosis who had donated blood at a time prior to development of clinically isolated syndrome were identified via the German National Multiple Sclerosis Society. Control sera were obtained from age- and gender-matched blood donors. IgG-/IgM-antibodies against the extracellular part of native, cell surface-expressed myelin oligodendrocyte glycoprotein were detected by flow cytometry. Antibodies against linear epitopes were identified by immunoblot using recombinant myelin oligodendrocyte glycoprotein (aa1-125) and human myelin basic protein preparations. Results: Fifty eight serum samples from 25 patients covering an interval of 7.3 years—2 months prior to disease onset were available. Longitudinal investigations were performed in 19 patients (2—14 samples per patient, 7 years—2 months prior to disease onset). No significant differences in the prevalence or titres of anti-myelin antibodies were detected between sera of preclinical individuals and healthy donors by either flow cytometry or immunoblot. There was no correlation between interval before clinically isolated syndrome and autoantibody status. Occurrence of antibodies was not associated with symptomatology/severity of clinically isolated syndrome. Conclusion: Neither anti-myelin autoantibodies against cell surface-expressed native myelin oligodendrocyte glycoprotein nor against linear epitopes have a predictive or discriminative role during the preclinical disease phase for developing clinically isolated syndrome or multiple sclerosis later in life.
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Affiliation(s)
- A. Chan
- Department of Neurology, Ruhr University, St. Josef-Hospital, Bochum, Germany
| | - BF Decard
- Department of Neurology, Ruhr University, St. Josef-Hospital, Bochum, Germany
| | - C. Franke
- Department of Neurology, Ruhr University, St. Josef-Hospital, Bochum, Germany, Institute for MS Research, Medical Faculty, University of Göttingen and Gemeinnützige Hertie Stiftung, Göttingen, Germany
| | - V. Grummel
- Department of Neurology, Klinikum rechts der Isar, Technische Universität, Munich, Germany
| | - D. Zhou
- Department of Neurology, Klinikum rechts der Isar, Technische Universität, Munich, Germany
| | - V. Schottstedt
- German Red Cross Blood Transfusion Service West, Central Laboratory, Hagen, Germany
| | - KV Toyka
- Department of Neurology, Clinical Research Group for Multiple Sclerosis and Neuroimmunology, University of Würzburg, Germany
| | - B. Hemmer
- Department of Neurology, Klinikum rechts der Isar, Technische Universität, Munich, Germany,
| | - R. Gold
- Department of Neurology, Ruhr University, St. Josef-Hospital, Bochum, Germany,
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Abstract
Uretero-arterial fistulae are rare. Immediate diagnosis and treatment are crucial in this life-threatening disorder and thus a uretero-arterial fistula in a patient with persistent hematuria should be taken into consideration. The authors report a case of a fistula between the right ureter and right common iliac artery.
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Affiliation(s)
- P Hildebrand
- Department of Surgery, University of Schleswig-Holstein, Lübeck, Germany.
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Franke C, Verwied-Jorky S, Campoy C, Trak-Fellermeier M, Decsi T, Dolz V, Koletzko B. Dietary Intake of Natural Sources of Docosahexaenoic Acid and Folate in Pregnant Women of Three European Cohorts. Ann Nutr Metab 2008; 53:167-74. [DOI: 10.1159/000172978] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2007] [Accepted: 09/01/2008] [Indexed: 11/19/2022]
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Mirow L, Hauenschild L, Hildebrand P, Kleemann M, Keller R, Franke C, Roblick UJ, Bruch HP, Kujath P. [Recurrence of Crohn's disease after surgery--causes and risks]. Zentralbl Chir 2008; 133:182-7. [PMID: 18415909 DOI: 10.1055/s-2008-1004743] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND In spite of the important role of conservative treatment, up to 90 % of all patients with Crohn's disease will undergo an operation during the course of their illness. Up to 50 % even need a second operation or further surgical procedures - with an increasing risk for perioperative complications. This study was designed to identify the risk factors for recurrence in patients with Crohn's disease and the influence of the primary operation. METHODS Between 1986 and 2004, 412 patients with Crohn's disease required operative treatment. 218 underwent a primary procedure and 194 needed a reoperation. In particular, the indications for surgical treatment, the surgical procedures and the perioperative complications were registered and evaluated in the context of a possible recurrence of Crohn's disease. In this study, "recurrence" is defined as a reoperation because of Crohn's disease after a primary operation. RESULTS The most common indications for a surgical treatment were stenosis (58.4 %) and fistulas (38.5 %). As the most frequent procedures, the ileocoecal resection and the partial resection of the small bowel were performed. Altogether, the complication rate was 11.5 %. The primary procedures (6.52 %) had less complications than the operations for a recurrence of Crohn's disease (17.70 %). The rate for the recurrence of Crohn's disease was 17.4 % after 5 years, 36.7 % after 10 years and 52.8 % after 15 years. Patients with fistulas as the indication for primary operation had the highest rate of recurrence (45 %). Patients with an isolated Crohn's lesion of the small intestine had a significantly higher risk for recurrence (59.5 %) than patients with lesions in the ileocoecal region or the colon. The anastomosis region (73 %) was the most common localisation for recurrence. CONCLUSION On the basis of defined risk factors, patients with a high risk for recurrence can be identified. This is very important because of the higher risk for complications caused by reoperations compared to primary procedures. That is why interdisciplinary cooperation including postoperative care and optimal conservative treatment are absolutely essential.
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Affiliation(s)
- L Mirow
- Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Klinik für Chirurgie. lutz.mirow@uk-sh-de
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