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Eur Neuropsychopharmacol. 2002 Dec;12(6):581-6.

In vivo imaging of neuroinflammation.

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Clinical Sciences Centre, PET-Neurology, Cyclotron Building, Hammersmith Hospital, DuCane Road, W12 ONN, London, UK.


We briefly outline the rationale for employing positron emission tomography (PET), using the ligand [11C](R)-PK11195, the binding site for which is highly expressed by activated microglia, in order (a) to detect in vivo neuroinflammatory changes occurring in a variety of brain diseases and at different disease stages and (b) to monitor the progression of neuroinflammation as a generic in vivo marker of 'disease activity'. The use of [11C](R)-PK11195 PET is described as a systematic attempt at measuring the emerging phenomenology of tissue pathology itself-as opposed to measuring, for example, the loss of neuronal function or structure-and as a proof of principle for the clinical utility of imaging glial cells in vivo.

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