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Abstract #0672

Alteration of Molecular Neurochemistry: MRI-guided Delivery of Viral Vectors to the Primate Amygdala

Benjamin P Grabow 1 , Jonathan A Oler 2 , Marissa Riedel 2 , Eva M Fekete 2 , Rothem Kovner 2 , Ethan K Brodsky 1,3 , Andrew S Fox 4 , Patrick H Roseboom 2 , Marina E Emborg 1 , Ned H Kalin 2 , and Walter F Block 1,3

1 Medical Physics, University of Wisconsin, Madison, WI, United States, 2 Psychiatry, University of Wisconsin, Madison, WI, United States, 3 Biomedical Engineering, University of Wisconsin, Madison, WI, United States, 4 University of Wisconsin, Madison, WI, United States

Progress in understanding the genetic, neurochemical, and molecular bases of some psychiatric illnesses has opened the possibility of using viral vectors to deliver novel therapeutics to relevant neural circuits. As the desired volumetric drug distributions are a factor of ten smaller than the drug distribution volumes used in previous trials of neuroprotective factors in degenerative brain diseases, the requirements for precise guidance and monitoring are significantly higher. We demonstrate methodology for targeting the central amygdalar nucleus, a structure critical for coordinating the behavioral components of fear and anxiety, in a longitudinal, non-human primate study designed to alter anxiety temperament.

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