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FDG PET, dopamine transporter SPECT, and olfaction: Combining biomarkers in REM sleep behavior disorder.
Mov. Disord. 32, 1482-1486 (2017)
BACKGROUND: Idiopathic REM sleep behavior disorder is a prodromal stage of Parkinson's disease and dementia with Lewy bodies. Hyposmia, reduced dopamine transporter binding, and expression of the brain metabolic PD-related pattern were each associated with increased risk of conversion to PD. The objective of this study was to study the relationship between the PD-related pattern, dopamine transporter binding, and olfaction in idiopathic REM sleep behavior disorder. METHODS: In this cross-sectional study, 21 idiopathic REM sleep behavior disorder subjects underwent 18 F-fluorodeoxyglucose PET, dopamine transporter imaging, and olfactory testing. For reference, we included 18 F-fluorodeoxyglucose PET data of 19 controls, 20 PD patients, and 22 patients with dementia with Lewy bodies. PD-related pattern expression z-scores were computed from all PET scans. RESULTS: PD-related pattern expression was higher in idiopathic REM sleep behavior disorder subjects compared with controls (P = 0.048), but lower compared with PD (P = 0.001) and dementia with Lewy bodies (P < 0.0001). PD-related pattern expression was higher in idiopathic REM sleep behavior disorder subjects with hyposmia and in subjects with an abnormal dopamine transporter scan (P < 0.05, uncorrected). CONCLUSION:
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
18 F-fdg-pet ; Dopamine Transporter I-fp-cit Spect 123 ; Idiopathic Rem Sleep Behavior Disorder ; Olfaction ; Parkinson's Disease-related Pattern; Metabolic Network Activity; Parkinsons-disease; Neurodegenerative Disease; Brain Networks; Lewy Bodies; Diagnosis; Dementia; Abnormalities; Dysfunction
ISSN (print) / ISBN
0885-3185
e-ISSN
1531-8257
Journal
Movement Disorders
Quellenangaben
Volume: 32,
Issue: 10,
Pages: 1482-1486
Publisher
Wiley
Publishing Place
Hoboken
Reviewing status
Peer reviewed
Institute(s)
Institute of Neurogenomics (ING)