Skip to main content
Log in

Reduced functional network connectivity is associated with upper limb dysfunction in acute ischemic brainstem stroke

  • Original Research
  • Published:
Brain Imaging and Behavior Aims and scope Submit manuscript

Abstract

This study aimed to detect alterations in intra- and inter-network functional connectivity (FC) of multiple networks in acute brainstem ischemic stroke patients, and the relationship between FC and movement assessment scores to assess their ability to predict upper extremity motor impairment. Resting-state functional magnetic resonance imaging (rs-fMRI) data were acquired from acute brainstem ischemic stroke patients (n = 50) and healthy controls (HCs) (n = 45). Resting-state networks (RSNs) were established based on independent component analysis (ICA) and the functional network connectivity (FNC) analysis was performed. Subsequently, correlation analysis was subsequently used to explore the relationship between FNC abnormalities and upper extremity motor impairment. Altered FC within default mode network (DMN), executive control network (ECN), the salience network (SN), auditory network (AN), and cerebellum network (CN) were found in the acute brainstem ischemic stroke group relative to HCs. Moreover, different patterns of altered network interactions were found between the patients and HCs, including the SN-CN, SN-AN, and ECN-DMN connections. Correlations between functional disconnection and upper limb dysfunction measurements in acute brainstem ischemic stroke patients were also found. This study intimated that widespread FNC impairment and altered integration existed in brainstem ischemic stroke at acute stage, suggesting that FNC disruption may be applied for early diagnosis and prediction of upper limb dysfunction in acute brainstem ischemic stroke.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

Data availability

Imaging data could be provided upon request.

References

Download references

Funding

This work was supported by the Jiangsu Provincial Special Program of Medical Science (No. BE2021604), Natural Science Foundation of Jiangsu Province (No. BK20201118) and 333 High-level Talents Training Project of Jiangsu Province (No. BRA2019122).

Author information

Authors and Affiliations

Authors

Contributions

WG. and JZ. are co-first authors of this paper, they design the experiment, analyze the data and draft the paper for the work. SS., HC. and MS. help to acquire the clinical and fMRI data. LJ. helps to revise the paper critically for important intellectual content. XY. and YCC. are co-corresponding authors of this paper, they did the financial support, review and final approval of the paper to be published. All authors read and approved the final manuscript.

Corresponding authors

Correspondence to Xindao Yin or Yu-Chen Chen.

Ethics declarations

Ethical approval

The current study was approved by the Research Ethics Committee of the Nanjing Medical University.

Consent to participate

All participants provided written informed consent before undergoing MR imaging.

Consent to publish

Not applicable.

Competing interests

The authors declare that there is no potential conflict of interests regarding the publication of this paper.

Additional information

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Geng, W., Zhang, J., Shang, S. et al. Reduced functional network connectivity is associated with upper limb dysfunction in acute ischemic brainstem stroke. Brain Imaging and Behavior 16, 802–810 (2022). https://doi.org/10.1007/s11682-021-00554-0

Download citation

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11682-021-00554-0

Keywords

Navigation