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| 001 | 283046 | ||
| 005 | 20251230103619.0 | ||
| 024 | 7 | _ | |a 10.1002/alz70855_101885 |2 doi |
| 024 | 7 | _ | |a 1552-5260 |2 ISSN |
| 024 | 7 | _ | |a 1552-5279 |2 ISSN |
| 037 | _ | _ | |a DZNE-2025-01453 |
| 041 | _ | _ | |a English |
| 082 | _ | _ | |a 610 |
| 100 | 1 | _ | |a Piechowiak, Christiane |0 P:(DE-2719)9003120 |b 0 |u dzne |
| 111 | 2 | _ | |a Alzheimer’s Association International Conference |g AAIC 25 |c Toronto |d 2025-07-27 - 2025-07-31 |w Canada |
| 245 | _ | _ | |a Acute physical exercise can exert measurable changes on perivascular spaces volumetry |
| 260 | _ | _ | |c 2025 |
| 336 | 7 | _ | |a Abstract |b abstract |m abstract |0 PUB:(DE-HGF)1 |s 1767014227_31203 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
| 336 | 7 | _ | |a INPROCEEDINGS |2 BibTeX |
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| 336 | 7 | _ | |a Journal Article |0 PUB:(DE-HGF)16 |2 PUB:(DE-HGF) |m journal |
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| 336 | 7 | _ | |a OTHER |2 ORCID |
| 520 | _ | _ | |a Background: Physical activity has been shown to reduce the risk of dementia and the pathological accumulation of amyloid in both animals and humans. One potential explanation for this outcome is that physical activity enhances glymphatic function. In this study we investigated whether a single session of physical exercise, could alter the glymphatic system, operationalized here as the visibility of perivascular spaces (PVS) on magnetic resonance imaging (MRI).Method:In this prospective cohort study, we included 20 young participants (mean age 25.8±3.5 years, female 50%), who underwent repeated MRI scans at three different time points: baseline, immediately after cardiopulmonary exercise testing until exhaustion, and 24 hours later (Figure 1). We estimated PVS volumes in the centrum semiovale (CSO) and basal ganglia (BG) using a well-validated software. For each subject, we first aligned all T2-weighted images using FreeSurfer's mri_robust_template tool. Using SynthSeg on T1-weighted images, we obtained white matter parcellations and aggregated them to create time-point-specific BG and CSO ROI masks. To ensure consistency across time points, we limited the analysis to regions that were consistent across all time points. We then segmented PVS on T2-weighted images using the RORPO filter followed by thresholding. All segmentations were visually assessed and manually corrected. We tested for differences using the Wilcoxon signed-rank test.Result:PVS volumes measured at the three time points had high agreement with one another (Lin's concordance in BG ROI > 0.94 and in CSO ROI > 0.98).Average BG-PVS volumes at baseline were 133.38 mm3 [95%-CI: 109.19,157.57]. Following acute exercise, these decreased to 123.10 mm3 [95%-CI: 99.62,146.57], showing a significant reduction of 10.28 mm3 [95%-CI: 3.24,17.33] (Figure 2; W=181, p = 0.003). After 24 hours, BG-PVS volumes increased to 130.34 mm3 [95%-CI: 107.96,152.72], similar to baseline levels (Figure 2; W=107, p = 0.644). CSO-PVS volumes, on the other hand, showed no significant changes between baseline and after exercise or 24 hours later (Figure 2).Conclusion:Our work indicates that a single bout of physical exercise can exert subtle yet measurable volumetric changes on PVS in young participants. Whether this change reflects enhanced cerebrovascular or glymphatic function or not remains unclear, but will be explored in future research. |
| 536 | _ | _ | |a 353 - Clinical and Health Care Research (POF4-353) |0 G:(DE-HGF)POF4-353 |c POF4-353 |f POF IV |x 0 |
| 588 | _ | _ | |a Dataset connected to CrossRef, Journals: pub.dzne.de |
| 650 | _ | 2 | |a Humans |2 MeSH |
| 650 | _ | 2 | |a Female |2 MeSH |
| 650 | _ | 2 | |a Magnetic Resonance Imaging |2 MeSH |
| 650 | _ | 2 | |a Male |2 MeSH |
| 650 | _ | 2 | |a Adult |2 MeSH |
| 650 | _ | 2 | |a Prospective Studies |2 MeSH |
| 650 | _ | 2 | |a Glymphatic System: diagnostic imaging |2 MeSH |
| 650 | _ | 2 | |a Glymphatic System: physiology |2 MeSH |
| 650 | _ | 2 | |a Exercise: physiology |2 MeSH |
| 650 | _ | 2 | |a White Matter: diagnostic imaging |2 MeSH |
| 650 | _ | 2 | |a Basal Ganglia: diagnostic imaging |2 MeSH |
| 650 | _ | 2 | |a Young Adult |2 MeSH |
| 650 | _ | 2 | |a Brain: diagnostic imaging |2 MeSH |
| 650 | _ | 2 | |a Cohort Studies |2 MeSH |
| 700 | 1 | _ | |a Müller, Patrick |0 P:(DE-2719)2811487 |b 1 |u dzne |
| 700 | 1 | _ | |a Moyano, Jose Bernal |0 P:(DE-2719)9001989 |b 2 |u dzne |
| 700 | 1 | _ | |a Kunz, Naomi |0 P:(DE-2719)9003121 |b 3 |u dzne |
| 700 | 1 | _ | |a Al-Zawity, Suzann |b 4 |
| 700 | 1 | _ | |a Hubert, Patrick |b 5 |
| 700 | 1 | _ | |a Nathania, Brigitta Patricia |0 P:(DE-2719)9003457 |b 6 |u dzne |
| 700 | 1 | _ | |a Kunz, Matthias |b 7 |
| 700 | 1 | _ | |a Lading, Yves |0 P:(DE-2719)9003681 |b 8 |u dzne |
| 700 | 1 | _ | |a Duarte, Roberto |b 9 |
| 700 | 1 | _ | |a Valdes Hernandez, Maria del C. |b 10 |
| 700 | 1 | _ | |a Wardlaw, Joanna M |b 11 |
| 700 | 1 | _ | |a Mattern, Hendrik |0 P:(DE-2719)9002178 |b 12 |u dzne |
| 700 | 1 | _ | |a Behme, Daniel |b 13 |
| 700 | 1 | _ | |a Neumann, Katja |0 P:(DE-2719)2810407 |b 14 |u dzne |
| 700 | 1 | _ | |a Braun-Dullaeus, Rüdiger |b 15 |
| 700 | 1 | _ | |a Schreiber, Stefanie |0 P:(DE-2719)2812631 |b 16 |e Last author |u dzne |
| 773 | _ | _ | |a 10.1002/alz70855_101885 |g Vol. 21, no. S1, p. e101885 |0 PERI:(DE-600)2201940-6 |n S1 |p e101885 |t Alzheimer's and dementia |v 21 |y 2025 |x 1552-5260 |
| 856 | 4 | _ | |y OpenAccess |u https://pub.dzne.de/record/283046/files/DZNE-2025-1453.pdf |
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