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[EXPIRED] Postdoc in Brain-Circuit Conduction Velocity Mapping

Are you curious to understand how fast brain regions communicate with each other and how the speed of communication is degraded by brain diseases and impact brain function? Do you wish to unravel how brain diseases affect the brain's microstructure, in particular how brain diseases alter myelinated axons and their electrophysical functional properties? Are you eager to work in a dynamic multi-disciplinary research environment with a focus on structural brain imaging? If yes, you should send us your application.

The Danish Research Centre for Magnetic Resonance (DRCMR) at Copenhagen University Hospital Hvidovre (Denmark) is seeking a 3-year postdoc in brain circuit conduction velocity mapping. The postdoc position is supported by the European Research Council consolidator grant "CoM-BraiN" – Conduction velocity mapping in the brain network in health and disease - where the aim is to use an MRI scanner to non-invasively map the conduction velocity of neuronal transmissions in the brain network between brain regions.

Your tasks:

  • To establish translational animal models (rodents) of neurodegenerative and demyelination diseases mimicking those in humans
  • To use optogenetic techniques to ablate and stimulate specific neuronal populations in the brain network and investigate how the manipulation impacts brain function.
  • To measure and analyze the functional readout of brain stimulations using electrophysiology.
  • To image the microstructural neuronal changes in the animal models with a focus on MRI to obtain 3D insights into anatomy. Our group integrates MRI with classical EM and immunohistochemistry but also 3D imaging techniques such as x-ray synchrotron imaging, and light-sheet fluorescence microscopy.
  • To be a fully integrated member of a cross-disciplinary research team and expand your knowledge and curiosity contributing to other scientific projects - still centered around your research topic of interest.

Your profile:

You should be a motivated international-minded team player and have:

  • A PhD degree in Neuroscience or corresponding qualifications within circuit or degeneration neuroscience
  • Worked with animals and have established/used animal models.
  • Documented practical skills in animal handling, stereotaxic surgeries, and anesthesia.
  • Worked with tissue preparation for IHC and microscopic imaging used in your scientific publications.
  • Interest in combining different imaging and functional measurements, e.g. histology and MRI to increase the scientific impact of your project. Here you will use the expertise of your group members.
  • Fluency in English writing and scientific communication
  • Independent working and thinking but also integrating with and contributing to the research team.
  • Furthermore, having worked with viral injections and/or single-cell or LFP electrophysiological recordings is an advantage.

About us:

The project will be carried out at the Danish Research Centre for Magnetic Resonance (DRCMR) which is a leading research centre for biomedical MRI in Europe (www.drcmr.dk). Our mission is to triangulate MR physics and basic physiology from preclinical to clinical research. Approximately 75 researchers from a diverse range of disciplines are currently pursuing basic and clinically applied MR research and its validation with a focus on structural, functional, and metabolic MRI of the human brain and its disorders. The DRCMR is embedded in the Department of Radiology and Nuclear Medicine, a large diagnostic imaging department that houses all biomedical imaging modalities at the Copenhagen University Hospital Amager and Hvidovre. The hospital has strong collaborative links with the Technical University of Denmark and is part of the newly established organisational framework, The Technical University Hospital of Greater Copenhagen (TUH).

The DRCMR has a state-of-the-art MR research infrastructure enabling translational research, which includes a pre-clinical 7T Bruker MR scanner, and six whole-body MR scanners (one 7T, four 3T, and one 1.5T scanners). The DRCMR has pre-clinical labs, a neuropsychology laboratory, an EEG laboratory, and two laboratories for non-invasive brain stimulation.

Our preclinical labs perform basic research in functional, microstructure, and plasticity imaging centred around the 7T Bruker BioSpec MRI system. The preclinical labs include a GMO2-classified virus lab fully equipped with stereotaxic surgery equipment, and electrophysiology facilities. Our cross-disciplinary research team is designing and validating new types of diffusion MRI and quantitative MRI imaging technologies for non-invasively disentangling the microstructure of brain networks and their function. Here, it is key to have a true interest in how the microanatomy and saltatory conduction velocity are related in the normal, and how it impacts brain function in the diseased brain. Our vision is translating our research to clinics to improve future non-invasive imaging technologies for better patient diagnosis.

We see diversity as a strength and encourage all persons regardless of gender, age, ethnicity, disabilities, or religion to apply.

 

Selected Publications

Madsen MAJ, Wiggermann V, Bramow S, Christensen JR, Sellebjerg F, Siebner HR. 2021. Imaging cortical multiple sclerosis lesions with ultra-high field MRI. NeuroImage. Clinical. 32:1-14. https://doi.org/10.1016/j.nicl.2021.102847

Højsgaard Chow H, Talbot J, Lundell H, Gøbel Madsen C, Marstrand L, Lange T, Mahler MR, Buhelt S, Holm Hansen R, Blinkenberg M, Romme Christensen J, Soelberg Sørensen P, Rode von Essen M, Siebner HR, Sellebjerg F. 2021. Dimethyl Fumarate Treatment in Patients With Primary Progressive Multiple Sclerosis: A Randomized, Controlled Trial. Neurology: Neuroimmunology and NeuroInflammation. 8(5):1-11. https://doi.org/10.1212/NXI.0000000000001037

Demnitz N, Madsen KS, Johnsen LK, Kjaer M, Boraxbekk C-J, Siebner HR. 2021. Right-left asymmetry in corticospinal tract microstructure and dexterity are uncoupled in late adulthood. NeuroImage. 240:1-9. https://doi.org/10.1016/j.neuroimage.2021.118405

Chow HH, Talbot J, Marstrand L, Lundell H, Roman Siebner H, Bach Søndergaard H, Sellebjerg F. 2021. Smoking, cardiovascular risk factors and LRP2 gene variation: Associations with disease severity, cognitive function and brain structure in primary progressive multiple sclerosis. Multiple Sclerosis and Related Disorders. 56:1-7. https://doi.org/10.1016/j.msard.2021.103296

Hougaard A, Nielsen SH, Gaist D, Puonti O, Garde E, Reislev NL, Iversen P, Madsen CG, Blaabjerg M, Nielsen HH, Krøigård T, Østergaard K, Kyvik KO, Madsen KH, Siebner HR, Ashina M. 2020. Migraine with aura in women is not associated with structural thalamic abnormalities. NeuroImage. Clinical. 28: Article 102361. Available from: 10.1016/j.nicl.2020.102361

Gylling AT, Bloch-Ibenfeldt M, Eriksen CS, Ziegler AK, Wimmelmann CL, Baekgaard M, Boraxbekk C-J, Siebner HR, Mortensen EL, Kjaer M. 2020. Maintenance of muscle strength following a one-year resistance training program in older adults. Experimental Gerontology. 139:1-10. Available from: 10.1016/j.exger.2020.111049

Gylling AT, Eriksen CS, Garde E, Wimmelmann CL, Reislev NL, Bieler T, Ziegler AK, Andersen KW, Bauer C, Dideriksen K, Baekgaard M, Mertz KH, Bayer ML, Bloch-Ibenfeldt M, Boraxbekk C-J, Siebner HR, Mortensen EL, Kjaer M. 2020. The influence of prolonged strength training upon muscle and fat in healthy and chronically diseased older adults. Experimental Gerontology. 136:1-10. Available from: 10.1016/j.exger.2020.110939

Andersen KW, Lasič S, Lundell H, Nilsson M, Topgaard D, Sellebjerg F, Szczepankiewicz F, Siebner HR, Blinkenberg M, Dyrby TB. 2020. Disentangling white-matter damage from physiological fibre orientation dispersion in multiple sclerosis. Brain communications. 2(2):1-14. Available from: 10.1093/braincomms/fcaa077

Andreasen AK, Iversen P, Marstrand L, Siersma V, Siebner HR, Sellebjerg F. 2019. Structural and cognitive correlates of fatigue in progressive multiple sclerosis. Neurological Research. 41(2):168-176. Available from: 10.1080/01616412.2018.1547813

Schreiber K, Magyari M, Sellebjerg F, Iversen P, Garde E, Madsen CG, Börnsen L, Romme Christensen J, Ratzer R, Siebner HR, Laursen B, Soelberg Sorensen P. High-dose erythropoietin in patients with progressive multiple sclerosis: A randomized, placebo-controlled, phase 2 trial. Mult Scler. 2016 Aug 1

Sørensen PS, Sellebjerg F, Lycke J, Färkkilä M, Créange A, Lund CG, Schluep M, Frederiksen JL, Stenager E, Pfleger C, Garde E, Kinnunen E, Marhardt K; Minocycline added to subcutaneous interferon β-1a in multiple sclerosis: randomized RECYCLINE study. RECYCLINE Study Investigators. Eur J Neurol. 2016 May;23(5):861-70

Ravnborg M, Sørensen PS, Andersson M, Celius EG, Jongen PJ, Elovaara I, Bartholomé E, Constantinescu CS, Beer K, Garde E, Sperling B. Methylprednisolone in combination with interferon beta-1a for relapsing-remitting multiple sclerosis (MECOMBIN study): a multicentre, double-blind, randomised, placebo-controlled, parallel-group trial. Lancet Neurol. 2010 Jul;9(7):672-80

Devantier TA, Nørgaard BL, Poulsen MK, Garde E, Øvrehus KA, Marwan M, Achenbach S, Dey D, Sørensen LH, Videbech P. White Matter Lesions, Carotid and Coronary Atherosclerosis in Late-Onset Depression and Healthy Controls. Psychosomatics. 2016 Jul-Aug;57(4):369-77

Reinhard H, Garde E, Skimminge A, Åkeson P, Ramsøy TZ, Winther K, Parving HH, Rossing P, Jacobsen PK. Plasma NT-proBNP and white matter hyperintensities in type 2 diabetic patients. Cardiovasc Diabetol. 2012 Oct 3;11:119

Contact

Karam Sidaros


Tel.: +45 3862 3330

Group Members

Karam Sidaros

Group Manager

Henrik Lundell

Vanessa Wiggermann

Sascha Gude

Sussi Larsen

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