Evidence map›Paper›PMID 38798037›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2024

Increased CSF DOPA Decarboxylase Correlates with Lower DaT-SPECT Binding: Analyses in Biopark and PPMI Cohorts.

Shervin Khosousi, Andrea Sturchio, Ellen Appleton, Wojciech Paslawski, Michael Ta, Michael Nalls, Andrew B Singleton, Hirotaka Iwaki, Per Svenningsson

Abstract read
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Shervin KhosousiLaboratory of Translational Neuropharmacology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Andrea SturchioLaboratory of Translational Neuropharmacology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Ellen AppletonLaboratory of Translational Neuropharmacology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Wojciech PaslawskiLaboratory of Translational Neuropharmacology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0003-2141-4547
Michael TaCenter for Alzheimer's and Related Dementias, National Institute on Aging and National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA.ORCID 0000-0001-6148-3841
Michael NallsCenter for Alzheimer's and Related Dementias, National Institute on Aging and National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA.
Andrew B SingletonCenter for Alzheimer's and Related Dementias, National Institute on Aging and National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA.
Hirotaka IwakiCenter for Alzheimer's and Related Dementias, National Institute on Aging and National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA.ORCID 0000-0002-8982-7885
Per SvenningssonLaboratory of Translational Neuropharmacology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0001-6727-3802

Funding

iPSCs to study Diversity in Alzheimers disease and Alzheimers disease-related dementias (iDA)ZIAAG000546 · NIA · NATIONAL INSTITUTE ON AGING · PI COOKSON, MARK · 2022 to 2025
$12.5M
Intramural NIH HHS ZIA AG000546
6 · The paper itself

Abstract

backgroundRecent studies identified increased cerebrospinal fluid (CSF) DOPA decarboxylase (DDC) as a promising biomarker for parkinsonian disorders, suggesting a compensation to dying dopaminergic neurons. A correlation with 123I-FP-CIT-SPECT (DaT-SPECT) imaging could shed light on this link.

objectiveThe objective is to assess the relationship between CSF DDC levels and DaT-SPECT binding values.

methodsA total of 51 and 72 Parkinson's disease (PD) subjects with available DaT-SPECT and CSF DDC levels were selected from the PPMI and Biopark cohorts, respectively. DDC levels were analyzed using proximity extension assay and correlated with DaT-SPECT striatal binding ratios (SBR). All analyses were corrected for age and sex.

resultsCSF DDC levels in PD patients correlated negatively with DaT-SPECT SBR in both putamen and caudate nucleus. Additionally, SBR decreased with increased DDC levels over time in PD patients.

conclusionCSF DDC levels negatively correlate with DaT-SPECT SBR in levodopa-treated PD. © 2024 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

Indexed as

Dopa DecarboxylaseDopamine Plasma Membrane Transport ProteinsParkinson DiseaseTomography, Emission-Computed, Single-PhotonAgedBiomarkersCohort StudiesFemaleHumansMaleMiddle AgedTropanes2-carbomethoxy-8-(3-fluoropropyl)-3-(4-iodophenyl)tropaneBiomarkersDopa DecarboxylaseDopamine Plasma Membrane Transport ProteinsTropanesBioparkDaT‐SPECTDOPA decarboxylaseParkinson's diseasePPMI

Identifiers

PMID38798037
PMCPMC11490393

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.