| Autor: |
Guiyan Cai, Jiao Liu, Lin Zhang, Shurui Xu, Jia Luo, Ruilin Chen, Qianqian Sun, Ming Li |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Brain Science Advances. 7:124-140 |
| ISSN: |
2096-5958 |
| Popis: |
Objective: This study aims to determine the relationship between education level, memory function, and hippocampus functional and structural alterations in subjective cognitive decline (SCD). Methods: Seventy-five participants with SCD were divided into high education (HE) and low education (LE) level groups. A Wechsler Memory Scale–Chinese Revision test and functional and structural MRI were performed within 1 week after participant recruitment. The bilateral hippocampus resting-state functional connectivity (rsFC), gray matter volume (GMV) of brain regions identified by rsFC analysis, and moderating and mediating effects were assessed. Results: Compared with the LE group, HE individuals showed 1) higher memory quotient (MQ) and Digit Span subscore, 2) decreased hippocampal rsFC with the right medial prefrontal cortex (mPFC) and dorsolateral prefrontal cortex (DLPFC), and 3) increased GMV in the right mPFC and DLPFC. The bilateral hippocampus–right DLPFC rsFC significantly associated with the MQ and the bilateral hippocampus–right mPFCrsFC with the Digit Span subscore in each group. The bilateral hippocampus–right DLPFC rsFC moderated the relationship between the education level and MQ. The bilateral hippocampus–right mPFC rsFC mediated the relationship between the education level and Digit Span subscore in all subjects. Conclusion: The hippocampal rsFC with the right mPFC and DLPFC contributes to the education level effect on memory function in SCD. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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