TY - JOUR AB - In Alzheimer´s disease (AD), persistent microglial activation as sign of chronic neuroinflammation contributes to disease progression. Our study aimed to in vivo visualize and quantify microglial activation in 13- to 15-month-old AD mice using [11C]-(R)-PK11195 and positron emission tomography (PET). We attempted to modulate neuroinflammation by subjecting the animals to an anti-inflammatory treatment with pioglitazone (5-weeks’ treatment, 5-week wash-out period). [11C]-(R)-PK11195 distribution volume values in AD mice were significantly higher compared with control mice after the wash-out period at 15 months, which was supported by immunohistochemistry data. However, [11C]-(R)-PK11195 μPET could not demonstrate genotype- or treatment-dependent differences in the 13- to 14 month-old animals, suggesting that microglial activation in AD mice at this age and disease stage is too mild to be detected by this imaging method. AU - Rapic, Sara AU - Backes, Heiko AU - Viel, Thomas AU - Monfared, Parisa AU - Parisa Monfared AU - Jacobs, Andreas H. AU - Kummer, Markus Peter AU - Neumaier, Bernd AU - Vollmar, Stefan AU - Hoehn, Mathias AU - Van der Linden, Annemie AU - Heneka, Michael Thomas AU - Heneka, Michael Thomas Johannes DA - 2012 KW - Alzheimer’s disease KW - Inflammation KW - Microglia KW - Molecular Imaging KW - Positron emission tomography KW - PK11195 KW - PPAR-gamma KW - Transgenic mice LA - eng N1 - This is a pre-print version. A definitive version was subsequently published in Neurobiol Aging, 2012 May 29 [Epub ahead of print], DOI: 10.1016/j.neurobiolaging.2012.04.016 PY - 2012 TI - Imaging microglial activation and glucose consumption in a mouse model of Alzheimer’s disease TT - Darstellung von Mikrogliaaktivierung und Glukoseverbrauch in einem Maus Modell für Morbus Alzheimer UR - https://nbn-resolving.org/urn:nbn:de:hbz:6-10419426271 Y2 - 2024-11-22T03:36:03 ER -