Altered static and dynamic functional network connectivity in temporal lobe epilepsy with different disease duration and their relationships with attention
| Autor: | Jingyuan Zhao, Peirong Wu, Xiaomin Pang, Jinou Zheng, Xiulin Liang, Wutong Wei, Xinrong Li, Lu Yu |
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| Rok vydání: | 2021 |
| Předmět: |
Adult
Male Time Factors Disease duration behavioral disciplines and activities Temporal lobe Correlation Functional networks Young Adult Cellular and Molecular Neuroscience Epilepsy Task-positive network Humans Medicine Attention Default mode network medicine.diagnostic_test business.industry Brain medicine.disease Magnetic Resonance Imaging nervous system diseases Cross-Sectional Studies Epilepsy Temporal Lobe nervous system Female Nerve Net business Functional magnetic resonance imaging Neuroscience |
| Zdroj: | Journal of Neuroscience Research. 99:2688-2705 |
| ISSN: | 1097-4547 0360-4012 |
| DOI: | 10.1002/jnr.24915 |
| Popis: | The brain network alterations associated with temporal lobe epilepsy (TLE) progression are still unclear. The purpose of this study was to investigate altered patterns of static and dynamic functional network connectivity (sFNC and dFNC) in TLE with different durations of disease. In this study, 19 TLE patients with a disease duration of ≤5 years (TLE-SD), 24 TLE patients with a disease duration of >5 years (TLE-LD), and 21 healthy controls (HCs) underwent resting-state functional magnetic resonance imaging and attention network test. We used group independent component analysis to determine the target resting-state networks. Sliding window correlation and k-means clustering analysis methods were used to obtain different dFNC states, temporal properties, and temporal variability. We then compared sFNC and dFNC between groups and found that compared with HCs, TLE-SD patients had increased sFNC between the dorsal attention network and sensorimotor network/visual network (VN), but decreased sFNC between the inferior-posterior default mode network and VN. In the strongly connected dFNC state, TLE-SD patients spent more time, had greater mean dwell time, and showed greater inconsistent abnormal network connectivity. There was a significant negative correlation between the temporal variability of auditory network- left fronto-parietal network connectivity and orienting effect. No significant differences in sFNC and dFNC were detected between TLE-LD and HC groups. These findings suggest that the damage and functional brain network abnormalities gradually occur in TLE patients after the onset of epilepsy, which might lead to functional network reorganization and compensatory remodeling as the disease progresses. |
| Databáze: | OpenAIRE |
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