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Verfasst von:Clemm von Hohenberg, Christian [VerfasserIn]   i
 Meyer-Lindenberg, Andreas [VerfasserIn]   i
 Vollmayr, Barbara [VerfasserIn]   i
 Sartorius, Alexander [VerfasserIn]   i
Titel:Lateral habenula perturbation reduces default-mode network connectivity in a rat model of depression
Verf.angabe:Christian Clemm von Hohenberg, Wolfgang Weber-Fahr, Philipp Lebhardt, Namasivayam Ravi, Urs Braun, Natalia Gass, Robert Becker, Markus Sack, Alejandro Cosa Linan, Martin Fungisai Gerchen, Jonathan Rochus Reinwald, Lars-Lennart Oettl, Andreas Meyer-Lindenberg, Barbara Vollmayr, Wolfgang Kelsch and Alexander Sartorius
E-Jahr:2018
Jahr:27 March 2018
Umfang:9 S.
Fussnoten:Gesehen am 08.04.2019
Titel Quelle:Enthalten in: Translational Psychiatry
Ort Quelle:London : Nature Publishing Group, 2011
Jahr Quelle:2018
Band/Heft Quelle:8(2018), Artikel-ID 68, Seite 1-9
ISSN Quelle:2158-3188
Abstract:Hyperconnectivity of the default-mode network (DMN) is one of the most widely replicated neuroimaging findings in major depressive disorder (MDD). Further, there is growing evidence for a central role of the lateral habenula (LHb) in the pathophysiology of MDD. There is preliminary neuroimaging evidence linking LHb and the DMN, but no causal relationship has been shown to date. We combined optogenetics and functional magnetic resonance imaging (fMRI), to establish a causal relationship, using an animal model of treatment-resistant depression, namely Negative Cognitive State rats. First, an inhibitory light-sensitive ion channel was introduced into the LHb by viral transduction. Subsequently, laser stimulation was performed during fMRI acquisition on a 9.4 Tesla animal scanner. Neural activity and connectivity were assessed, before, during and after laser stimulation. We observed a connectivity decrease in the DMN following laser-induced LHb perturbation. Our data indicate a causal link between LHb downregulation and reduction in DMN connectivity. These findings may advance our mechanistic understanding of LHb inhibition, which had previously been identified as a promising therapeutic principle, especially for treatment-resistant depression.
DOI:doi:10.1038/s41398-018-0121-y
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: http://dx.doi.org/10.1038/s41398-018-0121-y
 DOI: https://doi.org/10.1038/s41398-018-0121-y
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Animals
 Brain
 Brain Mapping
 Depressive Disorder, Treatment-Resistant
 Disease Models, Animal
 Habenula
 Magnetic Resonance Imaging
 Male
 Neural Pathways
 Optogenetics
 Rats
K10plus-PPN:1662924291
Verknüpfungen:→ Zeitschrift

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