Nigrostriatal dopamine-independent resting-state functional networks in Parkinson's disease

Jee Hyun Ham, Jungho Cha, Jae Jung Lee, Gwang Min Baek, Mun Kyung Sunwoo, Jin Yong Hong, Na Young Shin, Young Ho Sohn, Jong Min Lee, philhyu Lee

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

As an indicator of synchronous neural activity, resting-state functional networks are influenced by neuropathological and neurochemical changes in degenerative diseases. To further advance understanding about neurochemical and neuropathological basis for resting-state functional maps, we performed a comparative analysis of resting-state functional connectivity in patients with Parkinson's disease (PD) and drug induced parkinsonism (DIP). Resting-state neuroimaging data were analyzed with a seed-based approach to investigate striatocortical functional connectivity and cortical functional connectivity within the default mode network, executive control network, and the dorsal attention network. The striatal subregions were divided into the more or less affected sides in terms of dopamine transporter uptake. Compared with DIP, PD exhibited an increased cerebellar connectivity from the more affected side of the caudate and the less affected sides of the anterior and the posterior putamen. Additionally, PD showed increased functional connectivity in the anterior prefrontal areas from the more affected side of the anterior putamen and from the less affected side of the posterior putamen. However, PD exhibited decreased cortical functional connectivity from the posterior cingulate cortex in the left temporal area. Finally, DIP patients showed decreased cortical functional connectivity from the dorsolateral prefrontal cortex in frontal and parietal areas compared with PD patients. In summary, the present study demonstrates that PD patients exhibited a unique resting state functional connectivity that may be associated with PD-related pathological changes beyond the dopaminergic system, whereas DIP patients showed altered functional connectivity within executive control network.

Original languageEnglish
Pages (from-to)296-304
Number of pages9
JournalNeuroImage
Volume119
DOIs
Publication statusPublished - 2015 Oct 1

Fingerprint

Parkinson Disease
Dopamine
Parkinsonian Disorders
Putamen
Executive Function
Pharmaceutical Preparations
Corpus Striatum
Dopamine Plasma Membrane Transport Proteins
Gyrus Cinguli
Prefrontal Cortex
Neuroimaging
Seeds

All Science Journal Classification (ASJC) codes

  • Neurology
  • Cognitive Neuroscience

Cite this

Ham, Jee Hyun ; Cha, Jungho ; Lee, Jae Jung ; Baek, Gwang Min ; Sunwoo, Mun Kyung ; Hong, Jin Yong ; Shin, Na Young ; Sohn, Young Ho ; Lee, Jong Min ; Lee, philhyu. / Nigrostriatal dopamine-independent resting-state functional networks in Parkinson's disease. In: NeuroImage. 2015 ; Vol. 119. pp. 296-304.
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Ham, JH, Cha, J, Lee, JJ, Baek, GM, Sunwoo, MK, Hong, JY, Shin, NY, Sohn, YH, Lee, JM & Lee, P 2015, 'Nigrostriatal dopamine-independent resting-state functional networks in Parkinson's disease', NeuroImage, vol. 119, pp. 296-304. https://doi.org/10.1016/j.neuroimage.2015.06.077

Nigrostriatal dopamine-independent resting-state functional networks in Parkinson's disease. / Ham, Jee Hyun; Cha, Jungho; Lee, Jae Jung; Baek, Gwang Min; Sunwoo, Mun Kyung; Hong, Jin Yong; Shin, Na Young; Sohn, Young Ho; Lee, Jong Min; Lee, philhyu.

In: NeuroImage, Vol. 119, 01.10.2015, p. 296-304.

Research output: Contribution to journalArticle

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