Abstract:
:Function and morphology of the cerebral vasculature were studied in the amyloid (Abeta) plaque-containing double-transgenic (TG) B6.PS2APP Alzheimer's disease (AD) mouse model with MRI at an age range of 10 to 17 months. Perfusion, blood volume, and average vessel geometry were assessed in the brain and compared to age-matched controls (wild-type [WT] C57Bl/6). Additionally, the MR relaxation times T(1), T(2), and T(2)* were measured to detect potential pathological changes that might be associated with Abeta plaque depositions. Both decreased perfusion and decreased blood volume were observed in the occipital cortex in B6.PS2APP mice as compared to controls. A significant decrease in T(1) and T(2) was found in the frontal cortex and in the subiculum/parasubiculum. Immunohistochemistry confirmed plaque depositions in the cortex and in the subiculum/parasubiculum. In summary, our data indicate a reduced blood supply of B6.PS2APP mice in the occipital cortex that parallels the findings in cortical regions of patients with AD.
journal_name
Magn Reson Medjournal_title
Magnetic resonance in medicineauthors
Weidensteiner C,Metzger F,Bruns A,Bohrmann B,Kuennecke B,von Kienlin Mdoi
10.1002/mrm.21985subject
Has Abstractpub_date
2009-07-01 00:00:00pages
35-45issue
1eissn
0740-3194issn
1522-2594journal_volume
62pub_type
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