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30.07.2020

Dopamine promotes the neurodegenerative potential of β-synuclein

Authors Raina A, Leite K, Guerin S, Mahajani SU, Chakrabarti KS, Voll D, Becker S, Griesinger C, Bähr M, Kügler S Journal Journal of Neurochemistry Citation J Neurochem. 2020 Jul 30. Abstract A contribution of α-Synuclein (α-Syn) to etiology of Parkinson´s disease (PD) and Dementia with Lewy bodies (DLB) is
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30.07.2020

Effects of pharmacological modulators of α‐synuclein and tau aggregation and internalization

Authors Dominguez-Meijide A, Vasili E, König A, Cima-Omori MS, Ibáñez de Opakua A, Leonov A, Ryazanov S, Zweckstetter M, Griesinger C, Outeiro TF Journal Scientific Reports Citation Sci Rep 10, 12827 (2020). Abstract Parkinson’s disease (PD) and Alzheimer’s disease (AD) are common neurodegenerative disorders of the elderly and, therefore, affect
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Snapshot of protein mobility in the synapse. A region within the synapse at the edge of the synaptic vesicle cluster is shown. Organelles in grey represent synaptic vesicles (each ~40 nm in diameter). Various shapes correspond to different protein molecules, with each protein species having its own shape, as extracted from stuctural studies. The proteins are colored based on the speed of movement of every individual molecule in every position, from dark violet (the slowest one) to yellow (the fastest). Most proteins move slowly next to the synaptic vesicles, and are much faster in the vesicle-free region. Source: Reshetniak and co-authors

30.07.2020

Auf einen Streich: Wie sich Proteine in lebenden Synapsen bewegen

Einem Team von Wissenschaftlern um Prof. Dr. Silvio O. Rizzoli und Prof. Dr. Sarah Köster ist es erstmals gelungen, die simultane Bewegung von 45 Proteinen in einer Zelle zu visualisieren und damit die Mobilität von Tausenden von Proteinmolekülen in realistischer Form und Größe innerhalb einer Synapse zu demonstrieren. Die Studie
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Snapshot of protein mobility in the synapse. A region within the synapse at the edge of the synaptic vesicle cluster is shown. Organelles in grey represent synaptic vesicles (each ~40 nm in diameter). Various shapes correspond to different protein molecules, with each protein species having its own shape, as extracted from stuctural studies. The proteins are colored based on the speed of movement of every individual molecule in every position, from dark violet (the slowest one) to yellow (the fastest). Most proteins move slowly next to the synaptic vesicles, and are much faster in the vesicle-free region. Source: Reshetniak and co-authors

30.07.2020

In one sweep: Visualization of protein mobility in the synapse

(mbexc/umg) All functions of the neural system, including body movements, sensory reactions, and information processing in the brain, depend on the constant and controlled communication between nerve cells. The contact sites between nerve cells, the synapses, have been extensively studied over the last decades, extending our understanding of brain functioning
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29.07.2020

Developmental GABA polarity switch and neuronal plasticity in Bioengineered Neuronal Organoids

Authors Zafeiriou MP, Bao G, Hudson J, Halder R, Blenkle A, Schreiber MK, Fischer A, Schild D, Zimmermann WH Journal Nature Communications Citation Nat Commun 11, 3791 (2020). Abstract Brain organoids are promising tools for disease modeling and drug development. For proper neuronal network formation excitatory and inhibitory neurons as
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Optical cochlear implant in the cochlea of a rat. Source: Dr. Daniel Keppeler, Institute for Auditory Neurosciences, UMG.

22.07.2020

Auf dem Weg zum optischen Cochlea-Implantat

Ein interdisziplinäres Team von Wissenschaftler*innen der Universitätsmedizin Göttingen und der Albert-Ludwigs-Universität Freiburg konnte mittels Leuchtdioden-basierter optischer Cochlea-Implantate erstmals lichtgesteuertes Verhalten in tauben Nagetieren erzeugen. Nach 12 Jahren Forschung zu grundlegenden Fragen zum Hören mit Licht ist die Hörforschung am Göttingen Campus um Prof. Dr. Tobias Moser, Direktor des Instituts für
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Optical cochlear implant in the cochlea of a rat. Source: Dr. Daniel Keppeler, Institute for Auditory Neurosciences, UMG.

22.07.2020

On the way to the optical cochlear implant

Interdisciplinary team of scientists from the University Medical Center Göttingen and the University of Freiburg generate for the first time light-controlled behaviour in deaf rodents using optical cochlear implants based on light-emitting diodes. Published in Science Translational Medicine. (mbexc/umg) The cochlear implant (CI) enables worldwide over 700,000 people with profoundly
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22.07.2020

Multichannel optogenetic stimulation of the auditory pathway using microfabricated LED cochlear implants in rodents

Authors Keppeler D, Schwaerzle M, Harczos T, Jablonski L, Dieter A, Wolf B, Ayub S, Vogl C, Wrobel C, Hoch G, Abdellatif K, Jeschke M, Rankovic V, Paul O, Ruther P, Moser T Journal Science Translational Medicine Citation Sci. Transl. Med. 12, eabb8086 (2020). Abstract Cochlear implants provide the brain
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21.07.2020

Three-dimensional beating dynamics of Chlamy- domonas flagella

Authors Mojiri S, Isbaner S, Mühle S, Jang H, Bae AJ, Gregor I, Golami A, Enderlein J Journal bioRxiv Citation bioRxiv 2020.07.20.212159. Abstract Axonemes are the basic structure of motile cilia and flagella, and the investigation of how they function and move requires rapid three-dimensional imaging. We built a multi-plane
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20.07.2020

Novel Secondary Ion Mass Spectrometry Methods for the Examination of Metabolic Effects at the Cellular and Subcellular Levels

Authors Bonnin EA, Rizzoli SO Journal Frontiers in Behavioral Neuroscience Citation Front Behav Neurosci. 2020 Jul 20;14:124. Abstract The behavior of an animal has substantial effects on its metabolism. Such effects, including changes in the lipid composition of different organs, or changes in the turnover of the proteins, have typically
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