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Abstract #0733

MRI and MRS characterization of Crtc1 knock-out mice limbic structures: investigating neurobiology of mood disorders

Antoine Cherix 1 , Jean-Ren Cardinaux 2,3 , Rolf Gruetter 1,4 , and Hongxia Lei 5,6

1 Laboratory for functional and metabolic imaging (LIFMET), Ecole Polytechnique Fdrale de Lausanne, Lausanne, Vaud, Switzerland, 2 Center for Psychiatric Neuroscience (CNP), Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Vaud, Switzerland, 3 Faculty of Medicine, University of Lausanne, Lausanne, Vaud, Switzerland, 4 Department of Radiology, University of Lausanne, Lausanne, Vaud, Switzerland, 5 Center for Biomedical Imaging (CIBM), Ecole Polytechnique Fdrale de Lausanne, Lausanne, Vaud, Switzerland, 6 Department of Radiology, University of Geneva, Geneva, Geneva, Switzerland

MRI and MRS are two techniques that have been extensively used to study mood disorders. However, a lot of discrepancies between the studies reflect the lack of understanding in the pathophysiology of these complex diseases. We have investigated the volumetric and metabolic profile in a mouse model of mood disorders lacking Crtc1 gene. Knock-out animals showed strong regional dysregulations in their brain metabolism together with structural changes as compared to wild-type animals. This study provides a link between a specific gene and its associated metabolic and volumetric alterations and will help understanding further the underlying pathophysiology of mood disorders.

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