Journal
SCIENCE ADVANCES
Volume 6, Issue 20, Pages -Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.aba3884
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Funding
- Research Grants Council [9042620]
- City University of Hong Kong [9610362, 7005210, 6000660]
- National Institutes of Health [R01EB019934]
- Swedish Research Council [2015-04170, 2019-03637]
- Swedish Cancer Society [CAN2015/251, CAN2018/550]
- Swedish Research Council [2015-04170, 2019-03637] Funding Source: Swedish Research Council
- Vinnova [2015-04170] Funding Source: Vinnova
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Altered cerebral glucose uptake is one of the hallmarks of Alzheimer's disease (AD). A dynamic glucose-enhanced (DGE) magnetic resonance imaging (MRI) approach was developed to simultaneously monitor D-glucose uptake and clearance in both brain parenchyma and cerebrospinal fluid (CSF). We observed substantially higher uptake in parenchyma of young (6 months) transgenic AD mice compared to age-matched wild-type (WT) mice. Notably lower uptakes were observed in parenchyma and CSF of old (16 months) AD mice. Both young and old AD mice had an obviously slower CSF clearance than age-matched WT mice. This resembles recent reports of the hampered CSF clearance that leads to protein accumulation in the brain. These findings suggest that DGE MRI can identify altered glucose uptake and clearance in young AD mice upon the emergence of amyloid plaques. DGE MRI of brain parenchyma and CSF has potential for early AD stratification, especially at 3T clinical field strength MRI.
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