Functional connectivity alterations in a murine model of optic neuritis.

Abstract:

:The basis for neuronal dysfunction following inflammatory demyelination of the central nervous system (CNS) remains poorly understood. We characterized the network response to white matter injury in the anterior visual pathway using an experimental model of optic neuritis (ON), as ON is often an early manifestation of immune-mediated CNS demyelination in multiple sclerosis (MS). Optical intrinsic signal imaging was performed before and after the induction of ON in mice to measure changes in cortical network functional connectivity. We observed a greater loss of connectivity between homotopic visual cortices in ON mice compared to controls. Further, decreases in homotopic visual cortex connectivity were associated with visual acuity loss in ON mice. These results demonstrate that network connectivity changes resulting from ON can be modeled in an experimental murine system. Future studies will identify the mechanisms that cause neuronal dysfunction due to white matter injury seen in MS.

journal_name

Exp Neurol

journal_title

Experimental neurology

authors

Wright PW,Archambault AS,Peek S,Bauer AQ,Culican SM,Ances BM,Culver JP,Wu GF

doi

10.1016/j.expneurol.2017.05.004

subject

Has Abstract

pub_date

2017-09-01 00:00:00

pages

18-22

eissn

0014-4886

issn

1090-2430

pii

S0014-4886(17)30121-8

journal_volume

295

pub_type

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