Evidence map›Paper›PMID 33268471›Full record

ArticleJournal of neurology, neurosurgery, and psychiatry2021

Late onset depression: dopaminergic deficit and clinical features of prodromal Parkinson's disease: a cross-sectional study.

Hiba Kazmi, Zuzana Walker, Jan Booij, Faraan Khan, Sachit Shah, Carole H Sudre, Joshua E J Buckman, Anette-Eleonore Schrag

Open access · hybridAbstract read
In one paragraph

Article in Journal of neurology, neurosurgery, and psychiatry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.6field-weighted citation impact, top 8% of its field
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

35 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
  2. Trajectories of late-life depression: insights from molecular imaging.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Review
  3. Motor signs in late life depression relate to altered subcortical synaptic density and gray matter volume: anNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Neuroanatomical and prognostic associations of depression in Parkinson's disease.Journal of neurology, neurosurgery, and psychiatry · 2024
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Depression in dementia with Lewy bodies: a critical update.Journal of neural transmission (Vienna, Austria : 1996) · 2023
    Review
  19. Article
  20. Article
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

8 authors at 7 institutions in 2 countries.

Hiba KazmiDepartment of Clinical and Movement Neuroscience, UCL Institute of Neurology, London, UK.ORCID 0000-0003-2962-598X
Zuzana WalkerDivision of Psychiatry, University College London, London, UK.
Jan BooijDepartment of Radiology and Nuclear Medicine, Amsterdam UMC, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Faraan KhanAtkinson Morley Regional Neuroscience Centre, St George's University Hospitals NHS Foundation Trust, London, UK.
Sachit ShahLysholm Department of Neuroradiology, National Hospital for Neurology and Neurosurgery, London, UK.
Carole H SudreSchool of Biomedical Engineering and Imaging Sciences, King's College London, London, UK.
Joshua E J BuckmanCentre for Outcomes Research and Effectiveness, Research Department of Clinical, Educational & Health Psychology, University College London, London, UK.
Anette-Eleonore SchragDepartment of Clinical and Movement Neuroscience, UCL Institute of Neurology, London, UK a.schrag@ucl.ac.uk.ORCID 0000-0002-9872-6680
University College London · GBAmsterdam UMC Location University of Amsterdam · NLKing's College London · GBNational Hospital for Neurology and Neurosurgery · GBSouth Essex Partnership University Foundation NHS Trust · GBSt George’s University Hospitals NHS Foundation Trust · GBUK Dementia Research Institute · GB

Funding

Wellcome Trust 201292/Z/16/Z
6 · The paper itself

Abstract

backgroundLate onset depression (LOD) may precede the diagnosis of Parkinson's disease (PD) or dementia with Lewy bodies (DLB). We aimed to determine the rate of clinical and imaging features associated with prodromal PD/DLB in patients with LOD.

methodsIn a cross-sectional design, 36 patients with first onset of a depressive disorder (Diagnostic and Statistical Manual of Mental Disorders IV criteria) diagnosed after the age of 55 (LOD group) and 30 healthy controls (HC) underwent a detailed clinical assessment. In addition, 28/36 patients with LOD and 20/30 HC underwent a head MRI and 29/36 and 25/30, respectively, had dopamine transporter imaging by

resultsPatients with LOD (n=36) had significantly worse scores than HC (n=30) on the PD screening questionnaire (mean (SD) 1.8 (1.9) vs 0.8 (1.2); p=0.01), Movement Disorder Society Unified Parkinson's Disease Rating Scale total (mean (SD) 19.2 (12.7) vs 6.1 (5.7); p<0.001), REM-sleep behaviour disorder screening questionnaire (mean (SD) 4.3 (3.2) vs 2.1 (2.1); p=0.001), Lille Apathy Rating Scale (mean (SD) -23.3 (9.6) vs -27.0 (4.7); p=0.04) and the Scales for Outcomes in PD-Autonomic (mean (SD) 14.9 (8.7) vs 7.7 (4.9); p<0.001). Twenty-four per cent of patients with LOD versus 4% HC had an abnormal

conclusionsLOD is associated with increased rates of motor and non-motor features of PD/DLB and of abnormal

Indexed as

AgedBrainCase-Control StudiesCross-Sectional StudiesDepressionDopamine Plasma Membrane Transport ProteinsFemaleHumansMagnetic Resonance ImagingMaleParkinson DiseaseProdromal SymptomsPsychiatric Status Rating ScalesSurveys and QuestionnairesTomography, Emission-Computed, Single-PhotonDopamine Plasma Membrane Transport Proteins

Identifiers

PMID33268471
PMCPMC7841491
OpenAlexW3109125477

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.