Functional Abnormality Associated With Tau Deposition in Alzheimer’s Disease – A Hybrid Positron Emission Tomography/MRI Study
Objective: To investigate the characteristics of tau deposition and its impact on functional connectivity (FC) in Alzheimer’s disease (AD).Methods: Hybrid PET/MRI scans with [18F]-THK5317 and neuropsychological assessments were undertaken in 26 participants with AD and 19 healthy controls (HC). The...
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| Format: | Article |
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Frontiers Media S.A.
2021-10-01
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| Series: | Frontiers in Aging Neuroscience |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fnagi.2021.758053/full |
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| author | Liping Fu Zhi Zhou Linwen Liu Jinming Zhang Hengge Xie Xiaojun Zhang Mingwei Zhu Ruimin Wang |
| author_facet | Liping Fu Zhi Zhou Linwen Liu Jinming Zhang Hengge Xie Xiaojun Zhang Mingwei Zhu Ruimin Wang |
| author_sort | Liping Fu |
| collection | DOAJ |
| description | Objective: To investigate the characteristics of tau deposition and its impact on functional connectivity (FC) in Alzheimer’s disease (AD).Methods: Hybrid PET/MRI scans with [18F]-THK5317 and neuropsychological assessments were undertaken in 26 participants with AD and 19 healthy controls (HC). The standardized uptake value ratio (SUVR) of [18F]-THK5317 PET imaging was compared between the AD and HC groups. Significant clusters that revealed higher tau deposition in the AD group compared to the HC group were selected as regions of interest (ROI) for FC analysis. We evaluated the difference in the FC between the two groups for each ROI pair. The clinical and radiological characteristics were compared between the AD patients with negative FC and AD patients with positive FC for exploratory analysis.Results: The bilateral inferior lateral temporal lobe, dorsal prefrontal cortex, precuneus, posterior cingulate cortex, hippocampus, and occipital lobe showed significantly higher [18F]-THK5317 accumulation in AD patients. Decreased FC in regions with higher SUVR was observed in AD patients, and the FC strength was negatively correlated with regional SUVR. Patients with a positive FC exhibited older ages, better cognitive performances, and a lower SUVR than patients with a negative FC.Conclusions: An impact of tau deposition was observed on FC at the individual level in AD patients. Our findings suggested that the combination of tau-PET and rs-fMRI might help predict AD progression. |
| first_indexed | 2024-12-20T19:37:16Z |
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| id | doaj.art-6ad0631fe4a64838befe9c92b2a701fb |
| institution | Directory Open Access Journal |
| issn | 1663-4365 |
| language | English |
| last_indexed | 2024-12-20T19:37:16Z |
| publishDate | 2021-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Aging Neuroscience |
| spelling | doaj.art-6ad0631fe4a64838befe9c92b2a701fb2022-12-21T19:28:37ZengFrontiers Media S.A.Frontiers in Aging Neuroscience1663-43652021-10-011310.3389/fnagi.2021.758053758053Functional Abnormality Associated With Tau Deposition in Alzheimer’s Disease – A Hybrid Positron Emission Tomography/MRI StudyLiping Fu0Zhi Zhou1Linwen Liu2Jinming Zhang3Hengge Xie4Xiaojun Zhang5Mingwei Zhu6Ruimin Wang7Department of Nuclear Medicine, China-Japan Friendship Hospital, Beijing, ChinaDepartment of Neurology, China-Japan Friendship Hospital, Beijing, ChinaMedical Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaDepartment of Nuclear Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, ChinaDepartment of Neurology, The Second Medical Center, Chinese PLA General Hospital, Beijing, ChinaDepartment of Neurology, China-Japan Friendship Hospital, Beijing, ChinaDepartment of Neurology, The Second Medical Center, Chinese PLA General Hospital, Beijing, ChinaDepartment of Nuclear Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, ChinaObjective: To investigate the characteristics of tau deposition and its impact on functional connectivity (FC) in Alzheimer’s disease (AD).Methods: Hybrid PET/MRI scans with [18F]-THK5317 and neuropsychological assessments were undertaken in 26 participants with AD and 19 healthy controls (HC). The standardized uptake value ratio (SUVR) of [18F]-THK5317 PET imaging was compared between the AD and HC groups. Significant clusters that revealed higher tau deposition in the AD group compared to the HC group were selected as regions of interest (ROI) for FC analysis. We evaluated the difference in the FC between the two groups for each ROI pair. The clinical and radiological characteristics were compared between the AD patients with negative FC and AD patients with positive FC for exploratory analysis.Results: The bilateral inferior lateral temporal lobe, dorsal prefrontal cortex, precuneus, posterior cingulate cortex, hippocampus, and occipital lobe showed significantly higher [18F]-THK5317 accumulation in AD patients. Decreased FC in regions with higher SUVR was observed in AD patients, and the FC strength was negatively correlated with regional SUVR. Patients with a positive FC exhibited older ages, better cognitive performances, and a lower SUVR than patients with a negative FC.Conclusions: An impact of tau deposition was observed on FC at the individual level in AD patients. Our findings suggested that the combination of tau-PET and rs-fMRI might help predict AD progression.https://www.frontiersin.org/articles/10.3389/fnagi.2021.758053/fullAlzheimer’s diseasePET/MRItaufMRIfunctional connectivity |
| spellingShingle | Liping Fu Zhi Zhou Linwen Liu Jinming Zhang Hengge Xie Xiaojun Zhang Mingwei Zhu Ruimin Wang Functional Abnormality Associated With Tau Deposition in Alzheimer’s Disease – A Hybrid Positron Emission Tomography/MRI Study Frontiers in Aging Neuroscience Alzheimer’s disease PET/MRI tau fMRI functional connectivity |
| title | Functional Abnormality Associated With Tau Deposition in Alzheimer’s Disease – A Hybrid Positron Emission Tomography/MRI Study |
| title_full | Functional Abnormality Associated With Tau Deposition in Alzheimer’s Disease – A Hybrid Positron Emission Tomography/MRI Study |
| title_fullStr | Functional Abnormality Associated With Tau Deposition in Alzheimer’s Disease – A Hybrid Positron Emission Tomography/MRI Study |
| title_full_unstemmed | Functional Abnormality Associated With Tau Deposition in Alzheimer’s Disease – A Hybrid Positron Emission Tomography/MRI Study |
| title_short | Functional Abnormality Associated With Tau Deposition in Alzheimer’s Disease – A Hybrid Positron Emission Tomography/MRI Study |
| title_sort | functional abnormality associated with tau deposition in alzheimer s disease a hybrid positron emission tomography mri study |
| topic | Alzheimer’s disease PET/MRI tau fMRI functional connectivity |
| url | https://www.frontiersin.org/articles/10.3389/fnagi.2021.758053/full |
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