Defense Date


Document Type


Degree Name

Master of Science


Anatomy & Neurobiology

First Advisor

Jeffrey L. Dupree

Second Advisor

George H. DeVries

Third Advisor

Unsong Oh


Axonal domains are required for proper neuron function. These domains are unstable and degenerate concurrent with the inflammation in multiple sclerosis (MS) and the inflammatory disease models experimental autoimmune encephalomyelitis (EAE) and lipopolysaccharide (LPS) induced inflammation. Previous studies from our laboratory have shown that the axon initial segment (AIS) is maintained independently of the presence of myelin, but that AIS disruption is seen in MS as well as EAE and LPS-mediated inflammation. AIS loss can be interrupted in the early stage of EAE using the anti-inflammatory drug Didox. However, the potential for Didox directed repair of the AIS in later stages of disease has not been investigated. Here, we utilize two models of CNS inflammation to assess the possibility of reversing AIS pathology. Based on our findings, we present the first evidence that AIS degeneration, an axonal pathology observed in MS and in chronic inflammation, is reversible.


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