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Disrupted functional connectivity of striatal sub-regions in Bell's palsy patients.

Abstract：

:The striatum plays an important role in controlling motor function in humans, and its degeneration has the ability to cause severe motor disorders. More specifically, previous studies have demonstrated a disruption in the connectivity of the cortico-striatal loop in patients suffering from motor disorders caused by dopamine dysregulation, such as Parkinson's disease. However, little is known about striatal functional connectivity in patients with motor dysfunction not caused by dopamine dysregulation. In this study, we used early-state Bell's palsy (BP) patients (within 14 days of onset) to investigate how functional connectivity between the striatum and motor cortex is affected by peripheral nerve injury in which the dopamine system remains fully functional. We found a significant increase in the connectivity between the contralateral putamen, and the ipsilateral primary sensory (S1) and motor cortex (M1) in BP patients compared to healthy controls. We also found increased connectivity between the ventral striatum and supplementary motor area (SMA), and the dorsal caudate and medial prefrontal lobe in BP patients compared to healthy controls. Our results demonstrate that the entirety of the striatum is affected following acute peripheral nerve injury, and suggests that this disrupted striatal functional connectivity may reflect a compensatory mechanism for the sensory-motor mismatch caused by BP.

journal_name

Neuroimage Clin

journal_title

NeuroImage. Clinical

authors

Song W,Cao Z,Lang C,Dai M,Xuan L,Lv K,Cui F,Jorgenson K,Xu M,Kong J

doi

10.1016/j.nicl.2017.01.008

subject

Has Abstract

pub_date

2017-01-15 00:00:00

pages

122-129

issn

2213-1582

pii

S2213-1582(17)30008-6

journal_volume

14

pub_type

杂志文章

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