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Abstract #1076

Repeated Fluoxetine Treatment During Adolescence Causes Regional Brain Atrophy in Adulthood: A Voxel-Based Morphormetry Study in Rat

Liqin Yang1, Hao Wu1, Fuchun Lin1, Hao Lei1

1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, China

Fluoxetine (FLX) is the most popular prescription drugs for treatment of major depressive disorder in young populations. Recent studies have shown that chronic exposure to Selective serotonin reuptake inhibitors (SSRI), such as FLX, during adolescence or juvenile may cause neuroplastic effects on some brain regions. In this work, we constructed tissue probability maps (TPMs) of adult rat brain using high resolution volumetric T2-weighted image datasets, and used them to perform VBM analysis on the structural changes caused by repeated FLX treatment in adolescent rats.

Keywords

academy acquisition adolescence adolescent adult adulthood affine animals anterior apart applied array artifacts atrophic atrophy belonging blockade brain cause caused causes channel china chronic clustering coil consecutive consistent constructed containing contiguous contrast control coronal corrected cortex cortices cranium create created creation cropped daily days deficits depressive disorder distribution exposure extra finally findings fluid foundation functional fuzzy generated genetic give grants gray initial injection institute juvenile kernel laboratory layer manually maps materials mathematics matrix medial ministry mixed modulated molecular motor normalized nuclei nucleus observation parts pediatric people pharmacological physics pixels popular populations postnatal preprocessed prescription previous probabilities probability produced producing rare rats recent reception reduced regional registered registration rejection related repeated reported republic resolution rodents saline sample scanned scanner science segment segmentation selected selective slice slices smoothed spatially step stripped structural studies subjects suggested supported surface target technology template templates tissue transformation transmitter treated treatment twice volume volumetric white yang yielding young