Movement disorders : official journal of the Movement Disorder Society · 2026
Differential Progression of Neuroinflammation in Patients with Isolated Rapid-Eye-Movement Sleep Behavior Disorder.
СтатьяНазвание и аннотация: Перевод в очереди
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Baun Andreas Myhre, Iranzo Alex, Terkelsen Miriam Højholt, Hinz Rainer, Stokholm Morten Gersel, Stær Kristian, Serradel Mónica, Otto Marit, Svendsen Kristina Bacher, Garrido Alicia, Vilas Dolores, Møller Arne, Gaig Carles, Tolosa Eduardo, Brooks David J, Borghammer Per, Eskildsen Simon Fristed, Pavese Nicola
Аннотация
BACKGROUND: Neuroinflammation, measured using [11C](R)-PK11195 positron emission tomography (PET), has been reported in isolated rapid-eye-movement sleep behavior disorder (iRBD), but its temporal progression is unknown.
OBJECTIVE: The aim was to assess longitudinal progression of neuroinflammation in iRBD patients and its relationship with phenoconversion into Parkinson's disease (PD) or dementia with Lewy bodies (DLB).
METHODS: Sixteen iRBD patients received longitudinal [11C](R)-PK11195 PET scans over 3 years and were followed up clinically for 8 years to record phenoconversion into PD and DLB.
RESULTS: We found significant progression of neuroinflammation in the putamen among other regions, with a trend to cortical increase over 3 years. During the clinical follow-up, 7 patients converted, and subgroup analyses suggested that the converters differed in progression patterns, with PD converters exhibiting increases and DLB exhibiting decreases in inflammation.
CONCLUSION: This exploratory study suggests that progression of neuroinflammation in iRBD patients depends on their clinical trajectories, and this could be impactful in immune-modifying treatments. © 2026 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
OBJECTIVE: The aim was to assess longitudinal progression of neuroinflammation in iRBD patients and its relationship with phenoconversion into Parkinson's disease (PD) or dementia with Lewy bodies (DLB).
METHODS: Sixteen iRBD patients received longitudinal [11C](R)-PK11195 PET scans over 3 years and were followed up clinically for 8 years to record phenoconversion into PD and DLB.
RESULTS: We found significant progression of neuroinflammation in the putamen among other regions, with a trend to cortical increase over 3 years. During the clinical follow-up, 7 patients converted, and subgroup analyses suggested that the converters differed in progression patterns, with PD converters exhibiting increases and DLB exhibiting decreases in inflammation.
CONCLUSION: This exploratory study suggests that progression of neuroinflammation in iRBD patients depends on their clinical trajectories, and this could be impactful in immune-modifying treatments. © 2026 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.