1
|
Herzog R, Bolte C, Radecke JO, von Möller K, Lencer R, Tzvi E, Münchau A, Bäumer T, Weissbach A. Neuronavigated Cerebellar 50 Hz tACS: Attenuation of Stimulation Effects by Motor Sequence Learning. Biomedicines 2023; 11:2218. [PMID: 37626715 PMCID: PMC10452137 DOI: 10.3390/biomedicines11082218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Cerebellar transcranial alternating current stimulation (tACS) is an emerging non-invasive technique that induces electric fields to modulate cerebellar function. Although the effect of cortical tACS seems to be state-dependent, the impact of concurrent motor activation and the duration of stimulation on the effects of cerebellar tACS has not yet been examined. In our study, 20 healthy subjects received neuronavigated 50 Hz cerebellar tACS for 40 s or 20 min, each during performance using a motor sequence learning task (MSL) and at rest. We measured the motor evoked potential (MEP) before and at two time points after tACS application to assess corticospinal excitability. Additionally, we investigated the online effect of tACS on MSL. Individual electric field simulations were computed to evaluate the distribution of electric fields, showing a focal electric field in the right cerebellar hemisphere with the highest intensities in lobe VIIb, VIII and IX. Corticospinal excitability was only increased after tACS was applied for 40 s or 20 min at rest, and motor activation during tACS (MSL) cancelled this effect. In addition, performance was better (shorter reaction times) for the learned sequences after 20 min of tACS, indicating more pronounced learning under 20 min of tACS compared to tACS applied only in the first 40 s.
Collapse
Affiliation(s)
- Rebecca Herzog
- Institute of Systems Motor Science, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany; (R.H.); (C.B.)
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
- Department of Neurology, University Hospital Schleswig Holstein, Ratzeburger Allee 160, 23562 Lübeck, Germany
| | - Christina Bolte
- Institute of Systems Motor Science, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany; (R.H.); (C.B.)
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
| | - Jan-Ole Radecke
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
- Department of Psychiatry and Psychotherapy, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
| | - Kathinka von Möller
- Institute of Systems Motor Science, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany; (R.H.); (C.B.)
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
| | - Rebekka Lencer
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
- Department of Psychiatry and Psychotherapy, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
| | - Elinor Tzvi
- Department of Neurology, Leipzig University, Liebigstraße 20, 04103 Leipzig, Germany
- Syte Institute, Hohe Bleichen 8, 20354 Hamburg, Germany
| | - Alexander Münchau
- Institute of Systems Motor Science, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany; (R.H.); (C.B.)
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
| | - Tobias Bäumer
- Institute of Systems Motor Science, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany; (R.H.); (C.B.)
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
| | - Anne Weissbach
- Institute of Systems Motor Science, University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany; (R.H.); (C.B.)
- Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Ratzeburger Allee 160, 23562 Lübeck, Germany
| |
Collapse
|
2
|
Klein C, Borsche M, Balck A, Föh B, Rahmöller J, Peters E, Knickmann J, Lane M, Vollstedt EJ, Elsner SA, Käding N, Hauswaldt S, Lange T, Hundt JE, Lehrian S, Giese J, Mischnik A, Niemann S, Maurer F, Homolka S, Paulowski L, Kramer J, Twesten C, Sina C, Gillessen-Kaesbach G, Busch H, Ehlers M, Taube S, Rupp J, Katalinic A. One-year surveillance of SARS-CoV-2 transmission of the ELISA cohort: A model for population-based monitoring of infection risk. Sci Adv 2022; 8:eabm5016. [PMID: 35427158 PMCID: PMC9012459 DOI: 10.1126/sciadv.abm5016] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
With newly rising coronavirus disease 2019 (COVID-19) cases, important data gaps remain on (i) long-term dynamics of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection rates in fixed cohorts (ii) identification of risk factors, and (iii) establishment of effective surveillance strategies. By polymerase chain reaction and antibody testing of 1% of the local population and >90,000 app-based datasets, the present study surveilled a catchment area of 300,000 inhabitants from March 2020 to February 2021. Cohort (56% female; mean age, 45.6 years) retention was 75 to 98%. Increased risk for seropositivity was detected in several high-exposure groups, especially nurses. Unreported infections dropped from 92 to 29% during the study. "Contact to COVID-19-affected" was the strongest risk factor, whereas public transportation, having children in school, or tourism did not affect infection rates. With the first SARS-CoV-2 cohort study, we provide a transferable model for effective surveillance, enabling monitoring of reinfection rates and increased preparedness for future pandemics.
Collapse
Affiliation(s)
- Christine Klein
- Institute of Neurogenetics, University of Lübeck and University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
- Corresponding author.
| | - Max Borsche
- Institute of Neurogenetics, University of Lübeck and University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Alexander Balck
- Institute of Neurogenetics, University of Lübeck and University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
- Department of Neurology, University of Lübeckand and University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Bandik Föh
- Institute of Nutritional Medicine, University of Lübeck, Lübeck, Germany
- Department of Medicine I, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Johann Rahmöller
- Institute of Nutritional Medicine, University of Lübeck, Lübeck, Germany
- Department of Anesthesiology and Intensive Care, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Elke Peters
- Institute of Social Medicine and Epidemiology, University of Lübeck, Lübeck, Germany
| | - Jan Knickmann
- Institute of Virology and Cell Biology, University of Lübeck, Lübeck, Germany
| | - Miranda Lane
- Institute of Virology and Cell Biology, University of Lübeck, Lübeck, Germany
| | - Eva-Juliane Vollstedt
- Institute of Neurogenetics, University of Lübeck and University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Susanne A. Elsner
- Institute of Social Medicine and Epidemiology, University of Lübeck, Lübeck, Germany
| | - Nadja Käding
- Department of Infectious Diseases and Microbiology, University of Lübeck and University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Susanne Hauswaldt
- Department of Infectious Diseases and Microbiology, University of Lübeck and University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Tanja Lange
- Department of Rheumatology and Clinical Immunology, University of Lübeck and University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Jennifer E. Hundt
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - Selina Lehrian
- Institute of Nutritional Medicine, University of Lübeck, Lübeck, Germany
| | - Julia Giese
- Institute of Nutritional Medicine, University of Lübeck, Lübeck, Germany
| | | | - Stefan Niemann
- Research Center Borstel, Leibniz Lung Center, Borstel, Germany
- German Center for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Borstel, Germany
| | - Florian Maurer
- Research Center Borstel, Leibniz Lung Center, Borstel, Germany
| | - Susanne Homolka
- Research Center Borstel, Leibniz Lung Center, Borstel, Germany
| | - Laura Paulowski
- Research Center Borstel, Leibniz Lung Center, Borstel, Germany
| | - Jan Kramer
- Institute of Virology and Cell Biology, University of Lübeck, Lübeck, Germany
- LADR Laboratory Group Dr. Kramer & Colleagues, Geesthacht, Germany
| | | | - Christian Sina
- Institute of Nutritional Medicine, University of Lübeck, Lübeck, Germany
| | | | - Hauke Busch
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - Marc Ehlers
- Institute of Nutritional Medicine, University of Lübeck, Lübeck, Germany
| | - Stefan Taube
- Institute of Virology and Cell Biology, University of Lübeck, Lübeck, Germany
| | - Jan Rupp
- Department of Infectious Diseases and Microbiology, University of Lübeck and University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Alexander Katalinic
- Institute of Social Medicine and Epidemiology, University of Lübeck, Lübeck, Germany
| |
Collapse
|
3
|
Gutjahr A, Heck F, Emtenani S, Hammers AK, Hundt JE, Muck P, Siegel DL, Schmidt E, Stanley JR, Zillikens D, Hammers CM. Bullous pemphigoid autoantibody-mediated complement fixation is abolished by the low-molecular-weight heparin tinzaparin sodium. Br J Dermatol 2019; 181:593-594. [PMID: 31124130 DOI: 10.1111/bjd.18156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- A Gutjahr
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - F Heck
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - S Emtenani
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - A-K Hammers
- Flensburg Specialist Veterinary Centre for Small Animals, Flensburg, Germany
| | - J E Hundt
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - P Muck
- Department of Internal Medicine, University of Lübeck, Lübeck, Germany
| | - D L Siegel
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, U.S.A
| | - E Schmidt
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - J R Stanley
- Department of Dermatology, University of Pennsylvania, Philadelphia, PA, U.S.A
| | - D Zillikens
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - C M Hammers
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| |
Collapse
|