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Abstract #1929

Regional Transverse Relaxation Alterations in the APP/PS1/Tau Alzheimers Disease Transgenic Mouse Model Following Diet Induced Iron Loading

Mark David Meadowcroft 1,2 , Douglas G Peters 1 , Carson Purnell 2 , James R Connor 1 , and Qing X Yang 1,2

1 Neurosurgery, The Pennsylvania State University - College of Medicine, Hershey, PA, United States, 2 Radiology, The Pennsylvania State University - College of Medicine, Hershey, PA, United States

The role of iron in the formation of amyloid-beta plaques and neurofibrillary-tangles in not well understood. Our research has shown that the APP/PS1 transgenic mouse model produces plaques in a light iron environment compared to Alzheimers disease. Furthermore, transgenic model plaques exhibit dissimilar plaque morphology, inflammatory response, and have less focal iron. The goal of this study is to recapitulate the Alzheimers neuronal milieu through diet induced iron over-loading with a novel lipophilic compound and evaluate the role of iron on Alzheimers disease pathology. The results show longitudinal changes in regional transverse relaxation indicative of iron loading and plaque progression.

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