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Title: Changes in functional brain networks and neurocognitive function in Chinese gynecological cancer patients after chemotherapy : a prospective longitudinal study
Authors: Zeng, Y 
Cheng, ASK 
Song, T
Sheng, X
Cheng, H
Qiu, Y
Xie, J
Chan, CCH 
Issue Date: 2019
Source: BMC cancer, 2019, v. 19, no. 1, 386
Abstract: Background: Previous neurocognitive assessments in non-central nervous system cancers highlight the high incidence of neurocognitive dysfunction in this study population. However, there have been few studies exploring neurocognitive dysfunction induced by chemotherapy in gynecological cancer patients. This prospective longitudinal study was conducted to assess neurocognitive functioning and functional brain networks in Chinese gynecological cancer patients pre- A nd post-chemotherapy, while additionally including age-matched healthy subjects as the control group. Methods: All research participants were evaluated using a resting-state functional magnetic resonance imaging and neurocognition assessment. Behavioral data were conducted using SPSS for descriptive statistics, correlation and comparison analyses. Preprocessing of MRI (Magnetic Resonance Imaging) data and network analyses were performed using GRETNA (Graph Theoretical Network Analysis). Results: A total of 40 subjects joined this study, with 20 subjects in each group. With the exception of the mean of psychomotor speed, there was no significant difference pre-chemotherapy between patients and healthy controls in neurocognitive test mean scores (Ps > 0.05). During the post-chemotherapy assessment, there were significant differences in the mean scores of neurocognitive tests (including Digit Span tests, verbal memory, immediate recall, delayed recall, and information processing speed tests) (all Ps < 0.05). Longitudinal graph analysis revealed statistically significant differences in the patient group, with significant decreases in both local efficiency (P < 0.01) and global efficiency (P = 0.04). Lower raw TMT-A scores were significantly associated with lower local efficiency (r = 0.37, P = 0.03). Lower verbal memory scores were statistically significant and associated with lower global efficiency (r = 0.54, P = 0.02) in the patient group, but not in the healthy control group. Conclusions: This study found that the risk of brain function and neurocognitive changes following chemotherapy could potentially guide patients in making appropriate treatment decisions, and this study may identify a cohort that could be suited for study of an intervention.
Keywords: Chemotherapy
Chinese patients
Functional brain networks
Gynecological cancer
Neurocognitive function
Publisher: BioMed Central
Journal: BMC cancer 
ISSN: 1471-2407
DOI: 10.1186/s12885-019-5576-6
Rights: © The Author(s). 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver
The following publication Zeng, Y., Cheng, A. S., Song, T., Sheng, X., Cheng, H., Qiu, Y., ... & Chan, C. C. (2019). Changes in functional brain networks and neurocognitive function in Chinese gynecological cancer patients after chemotherapy: a prospective longitudinal study. BMC cancer, 19(1), 386 is available at
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