Cited by 44Functional Brain Connectivity StudiesParkinson's Disease Mechanisms and TreatmentsDementia and Cognitive Impairment Research

Abnormal resting-state functional connectivity in progressive supranuclear palsy and corticobasal syndrome

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Bharti, Komal, Bologna, Matteo, Upadhyay, Neeraj, Piattella, Maria Cristina, Suppa, Antonio, Petsas, Nikolaos, Giannì, Costanza, Tona, Francesca +2 more·2017·Frontiers in Neurology

Abstract

BACKGROUND: Pathological and MRI-based evidence suggests that multiple brain structures are likely to be involved in functional disconnection between brain areas. Few studies have investigated resting-state functional connectivity (rsFC) in progressive supranuclear palsy (PSP) and corticobasal syndrome (CBS). In this study, we investigated within- and between-network rsFC abnormalities in these two conditions. METHODS: Twenty patients with PSP, 11 patients with CBS, and 16 healthy subjects (HS) underwent a resting-state fMRI study. Resting-state networks (RSNs) were extracted to evaluate within- and between-network rsFC using the Melodic and FSLNets software packages. RESULTS: Increased within-network rsFC was observed in both PSP and CBS patients, with a larger number of RSNs being involved in CBS. Within-network cerebellar rsFC positively correlated with mini-mental state examination scores in patients with PSP. Compared to healthy volunteers, PSP and CBS patients exhibit reduced functional connectivity between the lateral visual and auditory RSNs, with PSP patients additionally showing lower functional connectivity between the cerebellar and insular RSNs. Moreover, rsFC between the salience and executive-control RSNs was increased in patients with CBS compared to HS. CONCLUSION: This study provides evidence of functional brain reorganization in both PSP and CBS. Increased within-network rsFC could represent a higher degree of synchronization in damaged brain areas, while between-network rsFC abnormalities may mainly reflect degeneration of long-range white matter fibers.

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Authors
Bharti, K., Bologna, M., Upadhyay, N., Piattella, M. C., Suppa, A., Petsas, N., Giannì, C., Tona, F., Berardelli, A., & Pantano, P.
Affiliations
  • Sapienza University of Rome (IT)
  • Istituto Neurologico Mediterraneo (IT)
Corresponding author
Pantano, Patrizia
Venue
Frontiers in Neurology
Published
2017-06-06
Volume
8
Pages
248-248
ISSN
1664-2295 (ISSN-L)
OpenAlex
W2622646200
Cited by
44
References
63
Citations by year
2026: 1 · 2025: 5 · 2024: 6 · 2023: 4 · 2022: 4 · 2021: 6 · 2020: 4 · 2019: 8 · 2018: 5 · 2017: 1
FWCI
2.82
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Neurology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
progressive supranuclear palsy, corticobasal syndrome, resting-state functional connectivity, resting-state networks, salience network, frontoparietal network, white matter degeneration, cognitive impairment

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