ArticleEuropean journal of nuclear medicine and molecular imaging2020
High-resolution PET imaging reveals subtle impairment of the serotonin transporter in an early non-depressed Parkinson's disease cohort.
Article in European journal of nuclear medicine and molecular imaging, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 20 citations in OpenAlex.
- Mapping the Silent Onset of Parkinson's Disease: Monoamine Imaging in the Era of the Race for Preclinical Intervention.Current neurology and neuroscience reports · 2026Review
- Neuroimaging of the monoaminergic system in Parkinson's disease: A narrative review.Neuroimage. Reports · 2026Review
- Exceptional brain PET images from the NeuroEXPLORER: scans with targeted radiopharmaceuticals and comparison to HRRT.European journal of nuclear medicine and molecular imaging · 2026Article
- Molecular connectivity studies in neurotransmission: a scoping review.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Pathophysiological Insights and Multimodal Interventions in Chronic Tinnitus, Anxiety, and Sleep Disorders.Nature and science of sleep · 2025Review
- Imaging Biomarkers in Prodromal and Earliest Phases of Parkinson's Disease.Journal of Parkinson's disease · 2024Review
- Cytochrome P450 and Epoxide Hydrolase Metabolites in Aβ and tau-induced Neurodegeneration: Insights frombioRxiv : the preprint server for biology · 2023Article
- Outcome Measures for Disease-Modifying Trials in Parkinson's Disease: Consensus Paper by the EJS ACT-PD Multi-Arm Multi-Stage Trial Initiative.Journal of Parkinson's disease · 2023Article
- The Neurodegenerative Elderly Syndrome (NES) hypothesis: Alzheimer and Parkinson are two faces of the same disease.IBRO neuroscience reports · 2022Review
- The pathobiological basis of depression in Parkinson disease: challenges and outlooks.Journal of neural transmission (Vienna, Austria : 1996) · 2022Review
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe serotonin transporter (SERT) is a biochemical marker for monoaminergic signaling in brain and has been suggested to be involved inthe pathophysiology of Parkinson's disease (PD). The aim of this PET study was to examine SERT availability in relevant brain regions in early stages ofnon-depressed PD patients.
methodsIn a cross-sectional study, 18 PD patients (13 M/5F, 64 ± 7 years, range 46-74 years, disease duration 2.9 ± 2.6 years; UPDRS motor 21.9 ± 5.2) and 20 age- and gender-matched healthy control (HC) subjects (15 M/5F, 61 ± 7 years, range 50-72 years) were included. In a subsequent longitudinal phase, ten of the PD patients (7 M/3F, UPDRS motor 20.6 ± 6.9) underwent a second PET measurement after 18-24 months. After a 3-T MRI acquisition, baseline PET measurements were performed with [
resultsThe univariate region-based analysis showed no differences in SERT levels when the PD patients were compared with the HC neither at baseline or after 2 years of follow-up. The multivariate network analysis also showed no differences at baseline. However, prominent changes in integration and segregation measures were observed at follow-up, indicating a disconnection of the cortical and subcortical regions from the three nuclei of the raphe.
conclusionWe conclude that the serotoninergic system in PD patients seems to become involved with a network dysregulation as the disease progresses, suggesting a disturbed serotonergic signaling from raphe nuclei to target subcortical and cortical regions.
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