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PET Imaging of Neuroinflammation Using [11C]DPA-713 in a Mouse Model of Ischemic Stroke
Published on: June 14, 2018
Neuroinflammation in frontotemporal lobar degeneration revealed by 11 C-PBR28 PET
Min-Jeong Kim1, Meghan McGwier1, Kimberly J Jenko1
1Molecular Imaging Branch, National Institute of Mental Health, Bethesda, Maryland.
Abstract:
This study used 11 C-PBR28 positron emission tomography (PET) imaging to determine whether levels of 18-kDa translocator protein (TSPO), an inflammation-specific biomarker, are increased in frontotemporal lobar degeneration (FTLD) patients. 11 C-PBR28, 18 F-FDG, and 11 C-PIB brain PET scans, as well as magnetic resonance imaging (MRI), were conducted in four FTLD patients and 22 healthy controls. 11 C-PBR28 scans revealed that all FTLD patients showed increased TSPO binding versus controls. Significantly greater increases in TSPO were observed in the frontal, lateral temporal, parietal, and occipital cortices, topographically consistent with individual clinical phenotypes and with brain MRI and 18 F-FDG PET. Amyloid burden was not increased.
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